Application and characteristics of fiberglass cloth
Release time:2024/3/28
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Application and Characteristics of Glass Fiber Cloth High Temperature Resistant Glass Fiber Cloth Application: Insulation and sound-absorbing insulation for pipes, cables, boilers in the power, petroleum, textile, chemical industries, and various industrial equipment partitions, ceilings, and inner and outer walls.
Fiberglass products can be further divided into glass fiber cloth, alkali free glass fiber cloth, medium alkali glass fiber cloth, pipeline glass fiber cloth, and high-temperature resistant glass fiber cloth based on their main properties
Introduction to Fiberglass Cloth
Glass fiber cloth is made by processing and weaving glass fiber, and is widely used in petrochemical, construction, thermal power plants, aviation, shipbuilding, anti-corrosion and insulation pipeline coating and other applications.
Performance characteristics:
1. Lightweight and highly corrosion-resistant, suitable for direct construction of underground pipelines and surface water tanks.
2. Long service life, aging resistance, and good insulation performance.
3. Convenient construction, low cost, and improved work efficiency.
Glass fiber cloth PTFE gasket includes pure PTFE, filled PTFE or expanded PTFE, etc.
â‘ Semi metal gasket (also known as metal composite gasket). Although non-metallic materials have advantages such as good flexibility, compressibility, and low bolt load capacity. But its main determination is that its strength is not high, its resilience is poor, and it is not suitable for high-pressure and high-temperature situations. So combining metal materials with high strength and good resilience. The characteristic of being able to withstand high temperatures. Form a gasket that combines the two structures. It is a semi metal gasket. Semi metal gaskets mainly include metal wrapped gaskets, metal wound gaskets, metal corrugated gaskets, and metal tooth shaped gaskets.
â‘¡ Metal wrapped gasket (metal composite gasket). The gasket is made of non-metallic material with a core and an outer layer thickness of 0. 25-0. 5mm metal sheet. According to the coating state, it can be divided into full coating, half coating, waveform coating, and double-layer coating. Metal sheets are selected based on the material's elastic-plastic, heat resistance, and corrosion resistance. There are mainly copper, galvanized iron sheet, stainless steel, titanium, Monel alloy, etc. Copper, galvanized iron sheet, and stainless steel are commonly used. As the core material of metal cushion, heat resistance is the main assessment indicator. Generally, asbestos board or low rubber asbestos board, carbon fiber or ceramic fiber with good high-temperature resistance, and flexible graphite board are used. Another characteristic of metal coated gaskets is that they can be made into various types of gaskets. It can meet the sealing needs of various heat exchanger tubes and non circular pressure vessels, while other composite gaskets cannot.
â‘¢ Metal wound gasket. Metal wound gasket is made by alternately winding thin metal waveform tape with non-metallic materials such as asbestos or flexible graphite into a spiral shape, and welding the beginning and end points of the metal tape. Also known as spiral gasket abroad.
â‘£ Metal gasket. Under harsh operating conditions such as high temperature, high pressure, and frequent load cycles, various metal materials are still the preferred materials for sealing gaskets. Commonly used materials include copper, aluminum, low-carbon steel, stainless steel, chromium nickel alloy steel, titanium Monel alloy, etc. In order to reduce bolt load and ensure a compact structure, in addition to using narrow widths for metal flat pads as much as possible, various ring pad structures with line contact characteristics are the preferred form.
⑤ Flat metal gasket. There are two types of flat washers for use: wide washers and narrow washers. The wide gasket is prone to deformation of the bolt flange and pressure exceeding 1 due to the high pre tightening force requirement. It is rarely used on flanges with smooth surfaces at 96 MPa. Narrow gaskets are easy to pre tighten and can withstand a pressure of 6. 27-9. Used on pipelines with a pressure of 8MPa.
Glass fiber cloth glass fiber cloth is classified according to its warp and weft directions as follows: untwisted coarse yarn, single warp fabric, and single weft fabric.
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