Archive for the 'Other' Category

19 Mar2026 T-Glass Shortage: Disrupting NVIDIA & Apple AI Hardware

Critical Impacts on AI Supply Chains

T-Glass fiberglass cloth shortage has emerged as a critical bottleneck for AI hardware production. NVIDIA’s GB200 GPU racks and Apple’s M-series server boards face 3-6 month delivery delays as lead times extend from 4 weeks to over 6 months. Material costs have surged 20-40%, with Japan’s Nittobo maintaining exclusive supply of this low-CTE (<5ppm) essential component for high-layer count PCBs and IC carriers.

T-Glass Technical Role in AI Hardware

T-Glass provides thermal stability (CTE <5ppm) and low dielectric constant (Dk<3.0) required for 12+ layer PCBs in AI servers. Each GB200 NVL72 rack consumes 5-8x more high-end fiberglass cloth than previous A100 systems, while Apple’s server expansion adds further pressure.

Metric2025 Baseline2026 Reality
Lead Time4-8 weeks3-6+ months
Price per m²$15-20$30-50+
AvailabilityOn-demandStrict allocation

NVIDIA GB200 Production Constraints

Carrier Board Delays: T-Glass shortage disrupts CoWoS-L packaging for Blackwell GPUs. PCB suppliers cannot meet delivery schedules, stalling rack-scale system assembly.

  • Q2 2026 Impact: 10-15% shipment reduction to major cloud providers
  • Cost Impact: $50K+ per rack price increase passed downstream
  • Production Status: Enterprise orders deprioritized behind hyperscaler allocations

NVIDIA has secured overflow capacity from Taiwan Glass and Nanya Plastics while pre-paying for Nittobo’s 2027 production expansion.

Apple Dual-Stream Production Pressure

Competing Demands: iPhone 18 Bluetooth/main boards and Private Cloud Compute servers compete for limited T-Glass supply.

  • Manufacturing Impact: Foxconn production lines face Q3 2026 idle time
  • Timeline Risk: iPhone 18 launch potentially delayed to February 2027
  • Cost Pressure: 15-25% PCB cost increases challenge pricing strategy

Apple is qualifying Grace Fabric (China) production while developing alternatives with Mitsubishi Gas Chemical, though high-spec validation requires 12+ months.

Custom T-Glass Specifications Drive Shortage

AI hardware evolution demands specialized T-Glass variants beyond standard specifications:

  • CPO Applications: Ultra-thin (<40μm) weaves for co-packaged photonics
  • HBM Integration: Precision density matching for 1000-layer substrates
  • Market Shift: Custom specifications now represent 50%+ of AI server demand (up from 20%)

Qualification cycles of 6-12 months eliminate spot market purchasing, forcing long-term supply contracts.

Strategic Supply Chain Response Framework

1. Bill of Materials Exposure Analysis

textT-Glass Dependency Assessment:
• >30% Nittobo reliance = Critical risk
• No qualified alternatives = High risk  
• <3 months buffer inventory = Immediate action required

2. Supplier Diversification Strategy

PrioritySupplier2026 CapacityQualificationStrategy
PrimaryNittobo (JP)2027 expansionApprovedLong-term contracts
SecondaryTaiwan Glass, Nanya (TW)+40% growth3-6 monthsOverflow allocation
EmergingGrace (CN), PPG (US)Capacity build9-12 monthsQualification programs

3. Contractual Risk Mitigation

  • 18-month offtake agreements with ±25% price escalation protection
  • 90-day minimum order quantity cancellation clauses
  • 2-3 months strategic inventory buffer (20% cost premium)

Major cloud operators achieved 8-week lead time reductions and limited cost exposure to +18% through early diversification to Nanya capacity.

2026-2027 Supply Outlook

Near-term Constraints: H1 2026 remains allocation-constrained. Taiwan capacity expansion provides Q3 relief.
Medium-term Dynamics: US/EU localization accelerates materials innovation. Custom T-Glass market projected to exceed $10B annually.

T-Glass shortage represents a structural challenge rather than temporary disruption, requiring immediate supply chain reconfiguration for 2026 AI hardware deployments.

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03 SepGlobal Trends in High Voltage Power Capacitors – Navigating the Current Landscape

In the rapidly evolving world of electrical infrastructure and energy systems, the high voltage power capacitor—often referred to as HV capacitor—continues to be a critical component. This blog post explores the latest global trends influencing this market, highlights key drivers and challenges, and showcases practical examples from leading solution providers, including Yuh‑Chang and Hitachi Energy.

Market Growth and Outlook

Recent market analyses consistently project robust expansion for the high voltage capacitor sector. Estimates vary—with projections ranging from USD 14.8 billion in 2024 growing to USD 33.4 billion by 2033 at a projected CAGR of 9.8%—yet all agree on the trajectory: sustained and significant growth lies ahead(Global High Voltage Capacitor Market, directindustry.com).

Key Demand Drivers

  1. Grid Modernization & Renewable Integration
    Utilities worldwide are upgrading aging infrastructure to accommodate variable renewable power. HV capacitors play an essential role in voltage stabilization, reactive power compensation, and seamless integration of solar and wind energy.
  2. Rise of HVDC and Smart Grids
    High Voltage Direct Current (HVDC) systems and smart grid technologies rely heavily on HV capacitors to ensure reliable, real-time power quality over long transmission distances.
  3. Electrification & EV Infrastructure
    Growth in electric vehicle (EV) adoption and charging networks is generating new applications for HV capacitors—such as energy flow management and voltage regulation within charging systems.
  4. Technological Advances
    Innovations in dielectric materials, compact form factors, and smart diagnostics are enhancing HV capacitor performance, reliability, and predictive maintenance capabilities.

Regional Highlights

  • Asia-Pacific leads in both market share and growth rate, primarily fueled by rapid urbanization, renewable energy expansion, and substantial investment in smart grid and HVDC infrastructure.
  • North America and Europe continue to maintain steady demand, supported by grid upgrades and policy-driven clean-energy objectives.

Challenges & Emerging Opportunities

  • Supply Constraints
    Specialized components like multilayer ceramic capacitors (MLCCs) face supply bottlenecks, potentially delaying deployment schedules.
  • Technical Standards Evolution
    As systems push toward ultra-high voltages, HV capacitors must meet stricter performance and safety criteria—requiring continuous R&D.
  • Sustainability and Longevity
    There’s increasing focus on eco-friendly materials and long-life designs, which present both regulatory challenges and opportunities for differentiation.

Real-World Examples of HV Capacitor Solutions

Hitachi Energy
Another prominent player is Hitachi Energy, a global technology supplier offering an extensive portfolio—including capacitor units, capacitor banks, harmonic filters, and accessories—designed for grid operators and large industrial power consumers. Famous for their robustness and global support network, Hitachi Energy’s solutions cater to reactive power management, grid stabilization, and power quality improvement across demanding environments.

Yuh-Chang Capacitor
Yuh-Chang offers a range of specialized high voltage power capacitors engineered for applications such as coupling, voltage division, and power electronics. Their product line provides tangible insight into how contemporary HV capacitor solutions are being designed and applied. Visit their site for detailed specifications and use cases: Yuh‑Chang High Voltage Power Capacitors.

Conclusion

To summarize, the global market for high voltage power capacitors or HV capacitors is poised for significant growth, driven by the dual forces of grid modernization and electrification. The expansion of renewables, HVDC systems, and smart grids raises performance expectations, but innovation in materials and system intelligence is keeping pace. Leading solutions—from Yuh-Chang to Hitachi Energy—offer a glimpse of how this landscape is evolving. Whether you’re a grid planner, renewable project developer, or industrial systems engineer, understanding these trends is essential moving forward.

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09 AprWhat are Electronic Deadbolt Locks?

Having a safe and secure door lock is the first step toward ensuring safety of the residence. For decades, this work was done by the simple key and locks.

 

However, these locks could be easily damaged and instances of break in increased. Looking for the appropriate solution to this problem, spring bolt lock came into use.

 

These locks consist of spring loaded bolt with an angled edge. When the door is completely closed, the spring engages and latch bolt holds the door closed. However, with time the use of deadbolt came into existence.

 

These locks are more convenient to use than the spring bolt locks. A typical deadbolt lock is handled manually and requires turning a cylindrical knob so as to open the door. Such deadbolts can have single cylinder requiring one key or double cylinder requiring two keys.

 

However, the problem with a simple deadbolt lock is that it requires a key. Most of the times, a person may forget the key. Besides, these simple deadbolts were inefficient to be used in massive buildings which require a large number of locks. Hence, an improvement was made in the deadbolts which now operated electronically without needing any manual effort.

 

Such deadbolts are called electronic deadbolt locks. In rest of the article, we would be discussing the various aspects of using an electronic deadbolt locks.

 

Electronic Deadbolt Lock

Electronic locks have become one of the most popular security locks used for doors in both commercial and residential buildings. Unlike simple deadbolt locks, these locks do not require keys for operation.

 

The actions of these locks are more accurate. Moreover, these locks do not allow easy break in into the building. Thus, the locks are widely used in hospitals, corporate offices, defense centers and private buildings. To open a lock, one need to feed a combination of codes which the related electric circuits analyses.

 

These code combinations can be fed either using cards or keypad. In most of the commercial and govt. buildings, cards are widely used.

 

How Does Such Lock Work?

The lock contains an electric circuit. The lock has knob on both sides of the door. The electronic circuit is arranged to read the input code. Once input code is fed, the circuit reads the code and matches it with the stored code. If the two matches, then, electrical operated bolt is activated and consequently the door is unlocked.

 

A battery is used to supply power for the circuit operation. The lock uses the solenoid or electric motor to activate the bolt mechanism.

 

Benefits of Deadbolt Locks

The electronic deadbolt locks have a numerous of advantages over the rest of the traditional deadbolt locks. Some of them are enlisted below:

 

  • Unlike simple deadbolt locks, the electronic deadbolt locks come with the patented digital technologies.
  • These locks are equipped with both key and electronic locking mechanism.
  • Multiples code combination can be stored which can allow several layers of security to the building.

 

Limitation of Deadbolt Locks

Despite of having brilliant features, there exist some factors which a cautious user must consider. Here, we enlist some of the limitations faced by the electronic deadbolt locks.

 

  • These locks are operated through solenoid or electric motors, thus, they need a large amount of power for effective functioning. However, the use of batteries has helped to solve this problem up to an extent.
  • If not installed properly, the cylindrical knob can be a hazard instead of providing safety to home.
  • The codes if guessed by someone else (other than the resident) can lead to awkward situation.

 

Features of A Good Deadbolt

There is a large number of electronic deadbolt locks available in the market. Thus, it is primary important for a buyer to judiciously choose the appropriate product for ensuring the home safety. In this regard, we present below some of the features which a good lock should possess. Hope that the buyers shall find it helpful before they go out for purchasing a new product.

 

  • The installation of the electronic deadbolt lock should be simple and inexpensive requiring minimum alteration to the premises.
  • The lock should have the capability of storing more than one combination so that different person can have the entry (with prior knowledge of the resident) without knowing the actual combination used by the resident of the house.
  • The lock should be capable of having the number of digits as combination according to the choice of the residents. That means the lock should not restrict the resident from choosing any combination as per his wish.
  • It is advisable to buy a double cylinder electronic deadbolt lock installed with glass windows.
  • A good electronic deadbolt lock should be battery operated.
  • It should use both card and keypad number for feeding the combination code.

 

Summary

The electronic deadbolt locks have rejuvenated the security issues concerning a residential or industrial building. The locks most popularly used in industrial buildings have enabled to gear up the best security measures.

 

Besides, the locks are being extensively used in buildings having strategic significance. These locks ensure null break in and are most convenient to use. There is no need for key as the locks are electric automated. Moreover, the locks also have the feature of storing more than one security code.

 

This unique feature adds to the security level of the building. However, one has to carefully choose the appropriate security code so that it is not easily guessed by someone else. With the use of such locks, one can surely enjoy the utmost security and safety level.

 

If you have any interest in electric deadbolt, welcome to check out Pongee’s website. The company specializes in kinds of access controllers, time attendances, EM locks, etc. Learn more information please feel free to send inquiry to Pongee.

 

Article Source: ReviewsWorthy

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11 DecHow to Select a UHF RFID Reader

Choosing the right RFID can be difficult. How should you choose?

 

Selecting the right UHF RFID Reader for your application is of the utmost importance. Not only is the RFID reader the brain of the RFID system, but each reader has its own unique features that should be considered before being deploying an RFID system.

 

To help narrow down the search to selecting the right RFID reader, we put together a list of 3 important factors to consider:

 

Region of Operation

Each country has its own regulations governing UHF RFID transmissions and, when deploying an RFID system, it essential to select an RFID reader that will operate within the bounds of the given country’s regulations. If a reader is set to transmit within the 902-928 MHz bandwidth in a country that has standardized the 865-868 MHz bandwidth for RFID use, then it will be in violation of the local frequency regulations.

 

Antenna Ports

The amount of read zones/read points required will vary by application, and the ability to extend read zones and/or add more read points depends on the number of RFID antennas that are deployed. The number of antennas that can be deployed is directly related to the number of antennas that a reader can support; thus, the number of antenna ports available on the reader needs to be considered during the selection process. Readers typically come in 2-port, 4-port, or 8-port options, but some readers have the ability to utilize multiplexers to expand and support up to 32 RFID antennas.

 

Method of Communication

If the application does not require the reader to be placed on a network, then it can be directly connected to the host computer via an:

 

  • RS-232 Cable
  • Ethernet Cable
  • USB Cable

 

(Of note, communicating solely via a USB port is a feature restricted to USB RFID readers).

 

If the application requires that the RFID reader will reside on a network, either Ethernet or Wi-Fi can be used. Using these two methods of communication will allow the RFID system to communicate via a network and the information collected can be accessed by as many other systems as your system design and software allows. Using an RFID system over a network may also help to reduce overall system costs if you have a multiple reader set-up as you won’t require a host computer for each reader.

 

If you have any questions regarding selecting the right RFID reader for your application or if you need more information, do not hesitate to visit the website of Pongee: www.pongee.com. This company is specializing in kinds of access controllers, EM locks, and UHF RFID readers etc. Check out their website to find more details you need.

 

 

Article Source: https://blog.atlasrfidstore.com/how-to-select-uhf-rfid-reader

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21 SepSensor Taps : Advantages and Disadvantages

Now I’m going to tell you Sensor Taps’ main features comparing them with manual and press taps.

 

While some benefits of sensor taps are undeniable, other elements in the list will be more or less negative in relation to one’s needs and expectations. We have classified the features in three categories: advantages, neutral points and disadvantages.

 

Advantages of Sensor Taps

Automatic taps contribute to a more sustainable world in two main ways:

 

  • Water Conservation:

Electronic taps are usually designed with a low flow rate, an aerator in the spout and system or materials that prevent leakage.

 

  • Energy Saving in The Long Term:

Each sensor tap requires 6, 9 or 12 volts, depending on the brand. This expense is unavoidable, whether hardwired or battery operated. Nonetheless, e-taps can make a difference during activation. Selecting the preferred flow and temperature every time a traditional faucet is activated wastes energy, among other things. In this regard, automatic basin taps with a constant temperature (cold, warm or premixed) are a great choice for commercial washrooms. Likewise, thermostatic faucets would be more energy efficient in showers than mixer lever ones.

 

Neutral Features of Sensor Taps

Newbies will need a few seconds to realize how to use a touchless tap. A clear sign explaining that it is a motion sensor tap helps to cut down confusion. After such an initiation, visitors will know from then on that automatic faucets are a possibility in washrooms, like we all did with manual and push taps.

 

All faucet filters need to be checked regularly, including those inside the sensor tap system. Cleaning tap filters is fundamental before using the electronic tap for the first time and after a water cut.

 

Since smart taps require power, they will run out of battery eventually. Most models in the market will let staff know the need for a replacement with LED warnings. There are different battery options, but they will last for at least 1 year.

 

Disadvantages of Sensor Taps

Price range is wide and, as always, you usually get what you pay for, but sensor taps probably imply more initial investment than traditional taps, plus a remote control is necessary to change the default settings. Nonetheless, touchless tapware saves costs in the long run, especially for commercial washrooms, and just one remote control can adjust an infinite number of compatible automatic taps.

 

If there is a water cut, one cannot use the faucets. If there is a power cut, mains operated sensor taps will not work either. Nevertheless, let’s count how many times a year businesses face power cuts or what the chances are that users go into a commercial washroom during a blackout, let alone reaching the basin.

 

Hands free taps work with an infrared sensor. This widget may have problems with reflective surfaces and extremely bright colors. Installers must read carefully the mounting instructions that the manufacturer provides in order to avoid mirrors or polished chrome finishes opposite the tap sensor, as well as another built-in sensor right in front of it. Despite following the guidelines, beware that sensor taps can make activation mistakes from time to time.

 

Due to the simpler design of smart taps, they work with fewer replaceable parts when comparing with traditional faucets. Should faults occur, replacing the whole unit seems more likely. Now though, sensor taps normally have an extensive guarantee period.

 

Choosing the Right Sensor Tap

Electronic taps have quite a lot of objective pros: environmental friendly, cost saver in the long term, with constant flow and accessible to all users. However, one must think as well about their so-called cons and the particular variables such as the traffic of the washroom (is the initial investment worth it?) or location (for example, are there plugs in the premises?).

 

If you need more information about sensor taps faucet, welcome to check out Kingsway’s website. They are the professional touchless faucet and electronic & automatic faucet manufacturer in the industry. Feel free to send inquiry or contact with Kingsway for more details you need.

 

Article Source: https://www.intelligenthanddryers.com/blog/benefits-sensor-taps-problems

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30 JunWhat is a Power Adaptor?

Power adaptors are devices that make it possible to connect different power sources to a variety of devices. In some cases, a power adaptor can make it possible to use an electrical device like a laptop computer in a foreign country, with no adverse effects to the device itself. Depending on the purpose and function, power adaptors can be relatively inexpensive or quite costly.

 

One of the most common types of power adaptor is the laptop adapter. Models designed for use by international travelers make it possible for a businessperson from the United States to use his or her laptop computer while on a trip to Europe or the United Kingdom. Some solutions are actually adapter sets that not only provide a selection of prongs for use with different types of outlets, but also transformers that help to convert alternating current to direct current. These kits can help trim travel expenses considerably, since there is no need to pay for expensive conversions during the stay, or to rent equipment for the duration of the trip.

 

There are other examples of the external power adaptor that are used with different types of electrical equipment. Cell phones and handheld devices often come with a simple power adaptor that make it possible to draw energy from a car battery by plugging one end of the adapter into the vehicle’s cigarette lighter. There are also adapter models that can be connected to small appliances and allow them to make use of electrical current stored in external batteries. Some designs are configured to allow the standard power cord to plug into the adapter on one end, and attach the opposite end of the adapter to an alternative power source, making the adapter an ideal solution during a power outage.

 

Depending on the particular scope of function, a power adaptor may be somewhat expensive. Devices designed to work with a wide variety of electrical equipment, especially those designed to help convert current, are usually the most expensive. Simpler devices, such as those that make it possible to use and charge a cell phone while in a moving vehicle, are usually available at very little cost. With all types of the adapter, it is important to make sure the products are thoroughly tested and meet minimum safety standards. This is especially important when the adapter is intended for use with expensive equipment, like a laptop, or will be used during a trip abroad.

 

As a leading and trustworthy power adaptor manufacturer and supplier, Hon-Kwang provides series AC/AC Power Adaptors and AC/DC Adaptors with different output rating, I/P voltage. For more details of Hon-Kwang power adaptors, welcome to check out our website to find power adaptors you need.

 

 

Article Source: http://www.wisegeek.com/what-is-a-power-adapter.htm

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07 NovWhat is Power Factor Regulator?

Power factor correction is a process that has to do with managing the essential traits of electric loads that are used to create a power factor of less than one. The main purpose of using power factor regulator is to ensure that the level of power transmission taking place is within safety limits set for the application involved. Power suppliers make use of power factor correction to ensure that home and public building systems are not overloaded, and that manufacturing facilities have an adequate flow of power to operate heavy machinery.

 

There are two basic ways of engaging in power factor correction. One approach relates to the management of power utilized at the end user level. With this application, a homeowner may utilize various devices to minimize or eliminate unnecessary power usage in the home. This may include the installation of such devices as energy saving appliances, or sensors that automatically turn lights off when no one is in the room.

 

A second approach to power factor correction involves the work of the power supplier to ensure the transmission network is functioning at optimum efficiency. This will mean ensuring that the level of power generated and distributed is within the safety limits for the network, and is not likely to overload one or more sections of the power grid. This approach often includes fail safe mechanisms that help to compensate when problems arise in one section of the grid, by containing the problem and not allowing it to spread to other sections.

 

There are both active and passive means of managing power factor regulators. The use of capacitor banks occurs with passive PFC and helps to correct nonlinear electrical loads and stabilize the flow of current. Active PFC usually employs a system that controls the amount of power utilized by a load, keeping the balance as close to unity as possible.

 

The advantages of power factor regulator apply to both the end user and to the supplier. For suppliers, adjusting the nature of the power flow to keep it within acceptable limits means less time, expense, and lost revenue resulting from system failures. End users who choose to engage in power factor regulator enjoy the benefit reduced power bills, as well as preventing extra wear and tear on electrical devices around the home or office.

 

YUHCHANG is a professional and experienced manufacturer of automatic power factor regulators. High quality electrical capacitor and capacitor bank series are also provided. If you need more information about Yuhchang capacitor supplier, welcome to visit our website and feel free to contact us!

 

Article Source: http://www.wisegeek.com/what-is-power-factor-correction.htm

 

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12 AugStainless Steel Self Drilling Screws – Hard Enough?

What are stainless steel self drilling (Tek) screws?

 

The ‘Self Drilling Screw for Metal’ or ‘Stainless Steel Tek Screw’ is a screw designed to self-drill into metal. There are several material types available and they each have their strengths and weaknesses.

 

Why does the grade matter?

 

Getting the material right for your application is critical. Some Stainless grades have excellent corrosion resistance (304 and 316) but are relatively soft and will not self-drill through much more than thin aluminum. Other grades like 410 are heat treated and have excellent hardness – but anywhere near salt-water (or any sort of coastal atmosphere) and you will see some tea-staining pretty quick!

 

Some Stainless grades such as Hardtec and Marutex offer the benefits of both (hardness and excellent corrosion resistance) – but are only available in Hex Washer Face Head style. Getting the right material grade and screw type for your application is critical.

 

So, what stainless steel self drilling (Tek) screws are available?

 

The Stainless Steel Self Drilling Screws are generally available in 4 main material types within the Stainless range, they are:

 

Bi-Metal Self Drilling Screws – these are not completely Stainless, the Bi-Metal screw generally has a 304 Stainless Steel body with a Carbon Steel tip. Because of the Carbon Steel tip they are very hard and good for drilling but they are not 100% Stainless Steel. They usually have a 500hrs Salt Spray Protective Ruspert Coating on them to increase corrosion resistance somewhat.

 

410 Stainless Self Drilling Screws – These are completely Stainless. 410 is a Martensitic Stainless and so can be hardened by heat treatment (which Austenitic types 304 and 316 cannot be). For this reason it has excellent drilling properties – however 410 has lower corrosion resistance than grade 304 and should not be used in highly or even moderately corrosive environments or tea-staining will result.

 

304 and also 316 Stainless Self Drilling Screws – Because the 300 series of Stainless Steels are of an Austenitic crystal structure – hardening by heat treatment like the 410 grade is not possible. These 300 series screws provide excellent corrosion resistance but are really only good for self-drilling through thin aluminum due to the softness of the grade. Also known as A2 (304) and A4 (316) in Europe.

 

Hardtec/Martuex Stainless – Both ‘Hardtec’ and ‘Marutex’ are propriety grades of Stainless Steel, made specifically for Stainless Self Drilling Screws. They are hardened by heat treatment and so have excellent drilling performance into metals like grade 410 BUT unlike grade 410, these grades have Molybdenum added to them and have corrosion resistant properties in line with the 300 series Stainless grades. Salt Spray tests show corrosion resistance equal or better to that of 304 grade and not far behind 316 Stainless Steel. They are an excellent screw!

 

Carbon Steel Tek Screws (Self Drilling Screws) are also available in Class 3 and Class 4 (with a galvanized surface) in Australia and New Zealand. These are commonly used in steel roofing. Aluminum versions are sometimes used for Aluminum cladding (to prevent Galvanic Corrosion from dissimilar metals). However Stainless Self-drilling screws provide the greatest corrosion resistance, particularly when the superior Hardtec grade is used.

 

Fu Yeh is a superior manufacturer for Self Drilling Screws such as hex washer head, hex flange washer heads, modify truss head, large wafer head, and Lotus head with stainless steel head cap and bugle head self drilling screws etc.. Fu Yeh holds honesty as our principle to server customers for long-term cooperation within customers, suppliers and crafts. We also hope that we could build up close partnership for mutual profit. If you need more details about self drilling screw or other screw series, welcome to visit our website and feel free to contact Fu Yeh!

 

Article Source: http://EzineArticles.com/8062075

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05 AugOverview of Aramid Fibers and Fabrics

Short for aromatic polyamide fibers, aramid fibers are composed of high-strength, heat-resistant synthetic polymer fibers. Chemically, they are a combination of long chainlike molecules linked by strong hydrogen bonds.

 

The first aromatic polyamides were produced in the early 1960s, with the first commercial product being a meta-aramid fiber from DuPont called Nomex®. Thanks to its strength and heat resistance combined with tactile characteristics that were close to normal textiles, Nomex® was quickly adopted for a number of uses including protective apparel, insulation, and more.

 

Types

 

Today, tens of thousands of tons of meta-aramid and para-aramid fibers are manufactured each year by multiple manufacturers under several brand names.

 

By chemistry, there are numerous types of aramid fibers. The Federal Trade Commission defines an aramid fiber as any manufactured fiber with a long-chain synthetic polyamide that has a minimum of 85% of its amide linkages attached directly to two aromatic rings. Classifying aramid fibers by commercially branded products, their types include or have included:

 

  • Kevlar®
  • Nomex®
  • Technora®
  • Twaron®
  • Conex®
  • Arawin®
  • New Star®
  • Kermel®

 

High-performance aramid fibers can transfer mechanical stress with high efficiency while maintaining a low molecular weight. The hydrogen bonds are aligned, for the most part, along the fiber axis, which gives them remarkable strength and flexibility.

 

Aramid Fabrics and Fibers Features

 

Aramid fibers are renowned for their high tensile strength. Aside from their resistance to abrasion and piercing, they also have high resistance to organic solvents and fire. They have no melting point, only begin to degrade at extremely high temperatures, and also have low flammability. Nomex® starts to decompose at around 350° C while Kevlar© and other para-aramids do not degrade until above 500° C. The fibers also operate well freezing temperatures and are nonconductive.

 

Aramid fibers have strength per unit of weight several times that of steel, aluminum and E-glass, and are lighter than fiberglass. The fibers are not totally indestructible, however, as they are sensitive to UV rays, acids, and salts.

 

Applications

 

Their unique properties of high strength, low weight, and flame and solvent resistance have made them useful in an array of applications.

 

  • Ballistic armor, in the form of vests and helmets
  • Flame-resistant and heat PPE for firefighters, pilots, race car drivers, and others
  • Asbestos replacement
  • Mechanical reinforcement in rubber goods, such as tires
  • Support ropes and cables
  • Optical fiber cables
  • Sporting goods (e.g. tennis strings, skis, snowboards, golf club shafts, hockey sticks)
  • Musical equipment (e.g. drumheads, wood instrument reeds, loudspeaker diaphragms)
  • Marine applications, such as boat hulls and sail cloth
  • Helicopter rotors
  • Solid rocket motors
  • Compressed natural gas tanks
  • Pipelines
  • Aircraft panels
  • Lightweight bicycles
  • Filter bags and other filtration devices
  • Automobile parts
  • Materials

 

Aramid fibers are long chain-like molecules composed of oxygen, carbon, hydrogen, and nitrogen. For manufacturing, aramids are formed into a polymer by the reaction between an amine group and a carboxylic acid halide group. These stiff polymer molecules have a strong crystal orientation and close interaction between polymer chains due to their strong hydrogen bonds.

 

Aramids are made into fiber form by spinning the dissolved polymer into a solid fiber form. During the production process they can be manufactured into a fiber, chopped fiber, powder, or pulp form. The manufacturing methods include hand lay-up, vacuum bagging, vacuum infusion, resin transfer molding (RTM), RTM light, press molding, filament winding, and pultrusion.

 

Selection

 

Kevlar® has outstanding strength-to-weight properties and an extremely high tolerance to heat that has made it one of the most popular aramid fibers for bulletproof vests. Nomex®, while not as strong as Kevlar® and para-aramid variants, has excellent thermal, chemical, and radiation resistance that makes it a popular fiber for protective firefighter apparel and hazardous material suits.

 

Standards

 

  • A-A-50195—Aramid thread
  • FORD ESB-M9H112-A—Protective, nonwoven, aramid fabric
  • ISO TS 17920—Fibre ropes for offshore stationkeeping – Aramid

 

Taiwan Electric Insulator was established in 1978 as a manufacturer of aramid fabrics, including aramid fiber fabric, ballistic aramid fabric and colored aramid fabric. The aramid fabric features flame resistance, outstanding shock absorption, and superb engineering benefits to all manners of manufacturing and design in the composite industry. To go with the ever-changing requirements, Taiwan Electric Insulator is dedicated to development and innovation of aramid fabric to meet the highest level of customers’ satisfactions. Find more details about aramid fabric, please contact us now!

 

Article Source: http://www.globalspec.com/learnmore/materials_chemicals_adhesives/composites_textiles_reinforcements/aramid_fiber_aramid_fabrics

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29 JulGarment Accessories – The Soul of All Garments

Garment accessories like Buckles, Buttons, Hooks, Loops, Zippers, etc. play an important role in making the garment stay at its place when worn. Other garment accessories like Beads, Buckles, Ribbons, Sequins, Belts, Lace, Tassels & Cords, etc. accentuate the beauty of the garment lending it an exquisite appeal.

 

A readymade garment cannot solely be judged merely by the quality of the fabric used. The accessories employed also play a key role in determining the quality of a garment. Thus, good brands always pay great deal of attention in sourcing the most premium grade garment accessories for their range of clothes.

 

Buttons are one of the most common accessories used in almost all types of clothes. They are available in a number of shapes, sizes, and designs. They may be fabricated in wood, plastic, metal, etc. and sometimes may even be embellished with precious and semi-precious stones. Primarily, buttons serve a utility purpose, like in jeans, shirts, blouses, skirts, etc. But at times, designer buttons are merely attached to a piece of clothing just to enhance its visual appeal.

 

Many a garments need zippers and zipper sliders, including jeans, skirts, jackets, etc. They should be strong and durable, to withstand the day to day wear and tear. They often come in a number of sizes and colors, and can also be customized as per the needs and requirements of the users.

 

As can be seen from above, garment accessories have an important role to play in the quality of a readymade garment.

 

Specializing in garment accessories with years of experiences, Dyi Er Kang provides full series of metal garment accessories, such as metal eyelets, metal grommets, metal cord locks and metal snap buttons. And if you are looking for plastic garment accessories, we also provided. We are a reliable manufacturer and partner to you! Please feel free to contact us.

 

 

Article Source: http://EzineArticles.com/1755747

 

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