Manufacturer of 5mm polytetrafluoroethylene plate for bridge bearings - Yueyang

Manufacturer of 5mm polytetrafluoroethylene plate for bridge bearings - Yueyang

PTFE plates are widely used as high and low temperature resistant, corrosion-resistant materials, and insulation materials in industries such as aerospace, electronics, electrical, chemical, mechanical, instrumentation, construction, textile, and food. The outstanding feature of PTFE plates is that PTFE is almost not corroded by any chemical reagents except for molten alkali metals. For example, in concentrated sulfuric acid, even when boiled in aqua regia, its weight and properties remain unchanged, and it is almost insoluble in all solvents. 1. Non adhesive: Almost all substances do not adhere to polytetrafluoroethylene coatings. The very thin film also exhibits good non adhesive properties. 2. Heat resistance: Polytetrafluoroethylene coating has excellent heat and low temperature resistance characteristics. It can withstand high temperatures up to 300 ℃ in a short period of time and can be continuously used between 240 ℃ and 260 ℃. It has significant thermal stability and can work at freezing temperatures without becoming brittle or melting at high temperatures. 3. Sliding property: Polytetrafluoroethylene coating has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05-0.15. 4. Moisture resistance: The surface of the PTFE coating is not wet or oily, and it is not easily stained with solutions during production operations. If there is a small amount of dirt, it can be easily removed by wiping. Short downtime, saving time and improving work efficiency. 5. Wear resistance: It has excellent wear resistance under high load. Under a certain load, it has the dual advantages of wear resistance and non adhesion.

Stair PTFE board is mainly used in engineering stairs as a hard PTFE stair support, which is widely used in current staircase applications. Because the stairwell does not participate in the overall seismic calculation of the structure, sliding supports need to be designed according to traffic restrictions. The variety and specifications of PTFE boards used for stairs must comply with the design requirements and construction specifications. Require the surface of polytetrafluoroethylene board to be flat, clean, and free from any damage. The specific use of 5mm PTFE board in construction: PTFE stair board. The thickness of PTFE board for stairs is generally 5mm, and its length is the length of the stair board; The width is the step width. Cutting the PTFE board on the stairs requires the use of a profile cutting machine for cutting.

The main raw material of polytetrafluoroethylene board is polytetrafluoroethylene, which is an engineering plastic with characteristics such as wear resistance, high temperature resistance, corrosion resistance, and low temperature resistance. Polytetrafluoroethylene board is an important plastic material. Products made from polytetrafluoroethylene rods are widely used in industries such as electronics, textiles, machinery, construction, and aerospace. The usual sealing methods include lubrication, waxing, mechanical sealing, and sealing. Different sealing methods are suitable for different occasions. Polytetrafluoroethylene sheets, like ordinary appliances, can also use rubber and cork stoppers. Polytetrafluoroethylene board raw material tape refers to the isolation of substances in the body from the outside, preventing oxidation caused by air mixing, and also preventing the penetration of moisture. It refers to the change of raw materials, reducing the increase of dust adhesion. When sealing, in order to achieve a tight seal, gaskets can be added or sealed with glue, water, oil seals, etc. Polytetrafluoroethylene board can be used for gap and gap sealing, and can be used for crossing or applying putty, putty, etc. Sealing materials such as asphalt, raw material tape, or liquid raw material tape can be used for pipeline sealing, and sealing covers or oil seals can be used for relative moving parts.

Polytetrafluoroethylene plates are divided into two types: molded and turned. Molded plates are made by molding polytetrafluoroethylene resin at room temperature, followed by sintering and cooling. Polytetrafluoroethylene turning plate is made of polytetrafluoroethylene resin through pressing, sintering, and rotary cutting. It has a wide range of applications and extremely comprehensive performance: high and low temperature resistance (-192 ℃ -260 ℃), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, non adhesion, harm and other excellent characteristics. It is widely used as an anti-corrosion lining material for chemical and dye industry containers, storage tanks, reaction tower kettles, and large pipelines; Mechanical, construction, transportation bridge sliders, guide rails; Anti sticking materials for printing and dyeing, light industry, textile industry, etc., and cutting devices are required for slicing polytetrafluoroethylene sheets during processing. Usually, the mold temperature of the staircase polytetrafluoroethylene board is controlled between 30 ℃~45 ℃. When the staircase polytetrafluoroethylene board melts, the grains absorb a certain amount of heat. Therefore, the temperature of the material barrel for the injection molding of the staircase polytetrafluoroethylene board should be 10 degrees higher than its melting point. In this article, we briefly describe the specifications, models, and prices of 5mm polytetrafluoroethylene plates. As a professional manufacturing company, we will do our best to organize and publish various related knowledge, and serve you wholeheartedly. The specifications, models, thickness, and price of polytetrafluoroethylene (PTFE) sheets are refined from pure PTFE through various processes such as molding, turning, and cutting. Among known plastics, PTFE sheets have good chemical corrosion resistance, no aging, electrical insulation, and extremely low friction coefficient. They can be used at temperatures ranging from -180 to+260 degrees Celsius under no load.

Manufacturer of 5mm polytetrafluoroethylene plate for bridge bearings - Yueyang

The English name for polytetrafluoroethylene board is polytetrafluoroethylene board. PTFE board is a high molecular weight chemical material containing polytetrafluoroethylene, which is widely used in packaging, electronics, electrical, chemical energy, corrosion-resistant materials. PTFE high-performance special coating is a fluorine coating based on polytetrafluoroethylene resin, known as Teflon in English. Due to its pronunciation, it is often referred to as Teflon, Teflon, Teflon, etc. (all transliterations of Teflon).
How much does a 5mm thick PTFE sheet weigh per square meter for processing and customizing imported PTFE sheets? Theoretical weight: 11.5KG. Generally, the selected specific gravity value is 2.3g/cm3 (there may be excess length and width in the production of polytetrafluoroethylene plates).
General regulations for polytetrafluoroethylene sheets for highway bridges
1. The PTFE sheet used for the support should be a fresh pure material molded sheet with an average particle size of no more than 50 μ m, and the molding pressure should not be less than 30MPa. Turning boards should not be used, nor should boards made from recycled materials or mixed with any fillers be used.
2. The surface of the PTFE sheet used in the PTFE skateboard support should be smooth and even, without cracks, bubbles, delamination, and mechanical damage.
3. The surface of the PTFE sheet pasted on the PTFE skateboard support should be pressed with a lubricating oil storage tank, with a diameter of 8mm ± 0.5nn and a depth of ` t_f `/2 ± 0.1mm. The total surface area of the storage tank should be 20% to 30% of the total surface area of the support. The oil storage tank should be formed by hot pressing and cannot be formed by mechanical methods.
4. The small thickness of the PTFE sheet pasted on the PTFE skateboard support should not be less than 2.

Introduction to the Performance and Application of Polytetrafluoroethylene Plate:
1. The PTFE sheet has a large amplitude of 2.8 meters and an infinite length. Made from suspended polytetrafluoroethylene resin through compression molding, it is divided into two types according to the production process: compression molded plate and turning plate. Polytetrafluoroethylene (PTFE) has excellent chemical corrosion resistance and dielectric properties among known plastics. It does not age or stick, and can be used at temperatures ranging from -180 ℃ to+280 ℃ under no-load conditions. In known solid materials, it has a low coefficient of friction.
2. Purpose: Processing and manufacturing gaskets, seals, lining partitions, scrapers, guide rails, as well as electrical insulation components and bridge support sliders used at various frequencies.
3. Specification: Customized according to customer requirements, with a large amplitude of 1.5 meters for PTFE sheet
Polytetrafluoroethylene (PTFE) board is currently known to have a low friction coefficient Z in solids (even smaller than ice). At the same time, the pressure required for the production of PTFE board should be greater than 30MPa, and the tensile strength of the product itself should be greater than 15MPa (equivalent to the strength of C15 concrete in construction). The tensile rate should be greater than 150%. The selection of PTFE board in this area is based on two factors: excellent sliding performance and reliable strength and tensile rate

The inclination of the inclined bridge or the gradual rise of the deck adds more elements to the support design standards. Some forces perpendicular to the bridge deck act on the shear surface of the support. Construction personnel organization and arrangement: The personnel entering the site shall be determined according to the needs of the project. And it affects performance and lifespan. Then wedge-shaped steel plates (or wedge-shaped concrete blocks between the bottom of the beam and the support) are used. Alternatively, corresponding treatment can be applied to the bottom of the beam end to level and support it, in order to prevent the shear effect of the reaction force component perpendicular to the support. These methods are the construction and installation work of bridge supports, which are labor-intensive and costly, and in some cases, not ideal. The inclined bearing was born. At present, bearing manufacturers can process and manufacture bearings with different specifications according to design and usage requirements. Wu Zhong 5mm PTFE board stair pad can withstand vertical loads and adapt to beam end rotation. Due to the low friction coefficient between PTFE and the stainless steel plate at the bottom of the beam, the horizontal displacement of the upper structure of the bridge is not limited. Large span bridges with a span of 30 meters, simply supported beam continuous slab bridges, and multi span continuous beam bridges can be used as movable supports, and continuous beam pushing, T-shaped beam lateral movement, and large equipment sliding can be used as sliding blocks. The allowable deviation range should be 10%. The gjzfgyzf4 type PTFE sliding plate rubber support should be installed horizontally. And upper and lower steel plates should be installed. Multiple consecutive spans. PTFE sliding plate rubber bearings, abbreviated as PTFE sliding plate bearings, are large displacement bridges with structures such as simply supported beams and continuous plates.

Products: PTFE board, PTFE rod, tube, plate, turntable. Polytetrafluoroethylene is a tetrafluoroethylene polymer. Polytetrafluoroethylene (PTFE) has a relatively large molecular weight, with a low molecular weight of 100000 and a high molecular weight of over 10 million, typically in the millions (with a degree of polymerization of 104 orders of magnitude, while polyethylene is only 103 orders of magnitude). The crystallinity is generally between 90% and 95%, abbreviated as PTFE in English. In the late 1930s, it was discovered that industrial production began in 40 years. The melting temperature is between 327 and 342 degrees Celsius. The CF2 units in polytetrafluoroethylene molecules are arranged in a zigzag pattern. Due to the slightly larger radius of fluorine atoms compared to hydrogen atoms, adjacent CF2 units in polytetrafluoroethylene plates cannot be reversed, but instead form helical twisted chains. Fluorine atoms almost cover the entire surface of the polymer chain. This molecular structure explains the various properties of polytetrafluoroethylene. When the temperature is below 19 degrees Celsius, a 13/6 helix is formed, and the phase transition occurs at 19 degrees Celsius, where the molecule slightly disintegrates and forms a 15/7 helix. The three major factors that affect the quality of ultra-high molecular weight polyethylene sheets are: raw materials, mold equipment, and processing and molding technology.

It does not react with any known acid or base, including the three strong acids. Polytetrafluoroethylene (PTFE) is not affected by moisture and does not dissolve in any known solvents (but can dissolve in molten alkali metals). Polytetrafluoroethylene (PTFE) is non flammable and non-toxic, and can only release toxic gases when heated above 400 ℃. Due to the inactive nature of polytetrafluoroethylene (PTFE), only special methods can be used to bond it. Attention should be paid to the working temperature of the adhesive during bonding. It is a polymer compound formed by the polymerization of tetrafluoroethylene, with a simple structural formula of - [- CF2-CF2-] n -. It has excellent chemical stability and corrosion resistance. Polytetrafluoroethylene, abbreviated as PTFE or F4, is one of the most corrosion-resistant materials today. 'Plastic King' is the common name for polytetrafluoroethylene, which is a plastic with excellent corrosion resistance. It is not corroded by known acids, bases, salts, or oxidants, and even the most powerful aqua regia is powerless against it.

Stair PTFE board is mainly used in engineering stairs as a hard PTFE stair support, which is widely used in current staircase applications. Because the stairwell does not participate in the overall seismic calculation of the structure, sliding supports need to be designed according to traffic restrictions. The variety and specifications of PTFE boards used for stairs must comply with the design requirements and construction specifications. Require the surface of polytetrafluoroethylene board to be flat, clean, and free from any damage.
Usage: The thickness of the PTFE board for stairs is generally 5mm, and its length is the length of the stair board; The width is the step width. Cutting the PTFE board on the stairs requires the use of a profile cutting machine for cutting. After the installation of the staircase PTFE board is completed, cover the easily contaminated areas with adhesive paper iron covers or plastic film for protection. Safety guardrails should be installed to protect the easily scratched areas.
The surface of polytetrafluoroethylene board is extremely smooth, and ordinary glue is difficult to bond. It must be treated with polytetrafluoroethylene surface treatment agent before bonding. Our treatment agent has been widely used in projects such as polytetrafluoroethylene tight lining, and the treatment effect is good!