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Info Silica Fiber

Source Wikipedia:

Silica fibers made of sodium silicate (water glass) are used in heat protection (including asbestos substitution) and in packings and compensators. They can be made such that they are substantially free from non-alkali metal compounds.

Sodium silicate fibers may be used for subsequent production of silica fibers, which is better than producing the latter from a melt containing SiO2 or by acid-leaching of glass fibers. The silica fibers are useful for producing wet webs, filter linings and reinforcing material.

They can also be used to produce silicic acid fibers by a dry spinning method. These fibers have properties which make them useful in friction-lining materials.[1]

 

Silica-Based Woven Textile products have been specifically designed for high temperature use.
Silica is available in a variety of product forms: Woven Fabrics, Woven Tapes, Non-woven Blankets, Bulk Fiber, Modules, Braiding Yarns, and other specialty forms such as Sleeving, Rope Gasket, and Cord.

Silica textiles provide excellent thermal and acoustic protection. These high-temperature resistant textiles products insulate and provide continuous protection in environments up to 1800°F (982°C), while maintaining their strength and flexibility.

  • Some woven Fabric contain a special coating that provides exceptional functioning when higher temperature performance, up to 2300°F (1260°C), is required
  • Non-woven Felts are available in a specially processed version that provides higher resistance to residual shrinkage (<1%) and degradation in extreme environments.
  • Siilica products can withstand excursions to 2900°F (1593°C) with minimal embrittlement and shrinkage.
  • Silica products are available in > 96% silica content. They resist oxidation, most corrosive solutions and chemicals, and they present no known health hazard.
  • Applications for Silica products range from welding blankets to satellite shrouds, firewalls to aircraft insulation, furnace curtains to thermal couple insulation wrap.
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Silica – Nonwovens

Product Description: 

Silica Needlemats are made from special glass fibers with a filament diameter of 6-9 microns. They represent a modern product generation that, in any aspect, meets with all stringent requirements as to temperature consistency and environmental health standards. Silica glass fibers consist of nearly 95% SiO(2). Because of their low thermal conductivity they are the ideal raw material for the production of flexible insulation mats formed mechanically without the use of chemical bonding agents. These mats keep a very high chemical and physical stability up to 1,800 degr. F. (For application temperatures not higher than 1,200 degrees F, we recommend the more cost efficient E-Glass Needlemat).

The easy handling of the mats allow the cutting of the material into any desired shape and form.

Please click on image to enlarge

SilicaMatThermoConductivitySilicaMat

 Applications: 

  • Industrial ovens
  • Chimneys
  • Kiln furnaces
  • Boilers
  • Steel Industry
  • Gas exhaust systems
  • Laboratories
  • Fire protection

 

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Silica – Fabrics

Product Description:

Silica fabrics are consisting of special glass fibers with an average filament diameter of approx. 6 micron. They represent a modern product generation that, in any aspect meets with all stringent requirements as to temperature consistency and environmental health standards. Approx. 95% of the Silica glass fibers consist of SiO(2). They are the ideal raw material for the production of fabrics and tapes with very high chemical and physical stability of up to 1,800 degr. F. As per customers specification these Silica fabrics can be finished with various coatings.

 Applications: 

  • Fire blankets
  • Welding blankets
  • Removable Insulation covers
  • Insulation pads
  • Industrial and laboratory ovens
  • Household– and boiler industry
  • Heat– and fire protection
  • Steel Industry
  • Automotive Industry
  • Flexible expansion joints
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S-Glass Applications – Aerospace

Click below links for Aerospace

S-Series_High_PerfMatlsforCompositeAppls-IndustrialAerospaceDefense

GLARE_Laminate-Aerospace

933_S-2_Yarn-Aerospace

933_S-2_Roving-Aerospace

636_S-2_Yarn-Aerospace

463_S-2_Roving-Aerospace_and_Defense

449_S-2-Aerospace

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S-Glass Applications – Defense & Armor

Click below link for Defense & Armor

S-Series_High_PerfMatlsforCompositeAppls-IndustrialAerospaceDefense

S-2_Glass_Reinforcement_MaterialofChoice-Defense

S-2_Glass_Phenolic_HJ1_System_Info-Defense

S-2_Glass_Armor_Systems-Defense

Composite_Armor_Solutions_Stanag_4569-Technical

463_S-2_Roving-Aerospace_and_Defense

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S-Glass Industrial Applications

Click on below links for Industrial Applications

VeTron_Roving-Industrial

S-Series_High_PerfMatlsforCompositeAppls-IndustrialAerospaceDefense

S-1_HM_Fibers-Industrial1

S-1 HM Roving

758_ZenTron_Roving-Industrial_and_Automotive3

493_S-2_Yarn-Industrial

401_S-2-Industrial

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S2-Glass General Information

S2-Glass is manufactured by AGY in the USA. The fiber has been designed to increase compressive strength, tensile strength, impact resistance and temperature resistances.

This site focuses on S2-Glass and it compares it with close alternatives.

Click below links for general information

Fiberglas Production

AGY_Technical_Product_Guide-Revised

S-Series Flyer

Advanced_Materials_Brochure-Technical

SynergisticRolesofHighStrengthGlass-Technical

S2_Glass_Fibers-Technical

Mechanical_Properties_of_Polymeric_Composites-Technical

High_Strength_Glass_Fibers-Technical

Glass Properties Comparison

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Application – Basalt Wovens

Basalt-Wovens

Basalt Standard Fabrics in general can be applied where E-Glass, sometimes S-Glass or Carbon Fabrics can be used, as well. As Basalt is more expensive than E-Glass, but cheaper than Carbon Fibers, typically it finds implementations, more suitable to its particular properties and fills an important gab when it comes to cost-performance ratios.

You can find a comparison to E-Glass, S-Glass or other materials by clicking here: Basic Comparison To Other Fibers.

Knowing how Basalt compares to other fibers allow to precisely engineer an optimal solution, which could also be in form of a hybrid (combining Basalt with other Fibers made from Glass, Carbon, Kevlar, etc.)

An Example of an Engineered FRP. 

In Fiber Reinforced Products (FRP) the engineer chooses the fiber, based on the desired outcome. E.g. if lighter weight requirements at identical strength to currently used fibers are required or if higher strengths are necessary while staying within the weight specifications.

There are other examples relevant to durability, corrosion resistances, break strength, chemical resistances, thermal applications, etc.

Our Team will be more than glad to assist or consult with design applications.

Standard Fabrics

Main application markets are

  • Geotextiles
  • Thermal applications
  • FRP (Fiber Reinforcement Products)

Standard offering: 

Weights: 3.2 oz/syd – 28 oz/syd

Widths: 19″ – 54″

Length: 26 yd – 500 yd

 OLYMPUS DIGITAL CAMERA  OLYMPUS DIGITAL CAMERA

OLYMPUS DIGITAL CAMERA   mesh1

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Chopping Technical Fibers

Chopping Technical Fibers

Rotary Chopping: 

A very consistent way of chopping is done in a rotary process. A drum with a selected blade count, spaced out to the desired fiber length achieves a very high accuracy.

A predetermined strand count will be fed into the rotary chopping mechanism. The actual chopping is then done by the means of crushing the fiber, rather than cutting it. This is possible, due to the fact that glass fibers are brittle by nature.

By feeding multiple strands at the same time, you can mix fibers with various properties, as well. This allows for a predictive and cost effective blend of fibers with a property mix for optimal efficiency in the following application.

Doing so, blended chopped fibers allow for more cost effective solutions or to create complete new niche markets.

Guillotine Chopping: 

Guillotine Chopping is often done when recycling the waste materials come from the glass fiber manufacturer.

The input material can be “Spin-cakes” or other materials which have not passed the inspections. In order to be able to chop a cake, it is necessary to break it down in smaller pieces. This can be done with a table saw like process. After multiple additional chopping processes, the fibers may have somewhat more random lengths than resulting from a Rotary Chopping.

During the next steps, the fibers can be opened, dried and baled and sent to the next intended application as e.g.

a) mechanically bound, needled into a “Needlemat” for industrial insulation

b) chemically bound into an insulation batting for automotive or commercial or industrial use

c) used as a reinforcement product for panel making