Overview of PTFE (Teflon) Products Usage
PTFE (Teflon) plastic, due to its fluorocarbon bonding energy and fluorine shielding effect, has excellent chemical corrosion resistance, dielectric properties, weather resistance, non-flammable non-stick, low friction coefficient, a wide temperature range, and is widely used in corrosion prevention, sealing, bearing load, anti-stick, electrical insulation, medical health, household necessities, and other aspects. It has become a modern industry. Advanced science, the national defense industry, electronic and electrical appliances, chemical petroleum, machinery manufacturing, and other industries are indispensable and important materials.
1. Anti-corrosion Application
Corrosion is a common problem at home and abroad. The damage caused by corrosion is staggering. However, due to some defects in the properties of rubber, glass, alloys and other materials, it is difficult to meet the harsh conditions of temperature, pressure and medium coexistence, and fluorine materials can meet these requirements after special processing. It has become a key corrosion resistant material in petroleum, chemical and other industries.
1. Conveying pipe, exhaust steam pipe and steam pipe for conveying corrosive gases.
2. High-pressure tubing for rolling mills, high-pressure tubing for aircraft hydraulic systems, and air conditioning systems.
3. Distillation tower, heat exchanger, kettle, tower, tank lining, valves and other chemical equipment.
4. Filtration membrane, electrolytic membrane, gas dialysis membrane and other filtration materials.
2. Application of corrosion-resistant seal
The performance of seals has a great impact on the efficiency and performance of the entire machine and equipment. For high corrosion resistance requirements, the use of seals with temperatures higher than 100℃ fluorine materials or filled with fluorine materials. This is due to the fluorine material's corrosion resistance, aging resistance, low friction coefficient, non-viscosity, wide temperature range, and elastic characteristics.
1. Sealing of groove flanges for machines, heat exchangers, high-pressure vessels, large-diameter vessels, valves, and pumps.
2. Sealing of glass-lined reaction pots, flat flanges, and large-diameter flanges.
3. Shaft, piston rod, valve stem seal.
4. Worm gear pump seal, tie rod seal.
5. Mechanical seal.
3. Applications in Load Bearing
1. Filled PTFE bearings are used in chemical equipment, papermaking machinery, and agricultural machinery.
2. Used for piston ring, machine guide rail, and guide ring.
3. Ptfe sliding block: Due to the low friction coefficient and high carrying capacity of PTFE materials, it is widely used as a supporting slider for bridges, tunnels, steel structure roof trusses, large chemical pipelines, and storage tanks in soil and construction projects. Ptfe basin rubber bearing is a common bridge support, with the development of technology and materials, can also be used in bridge construction and bridge rotation.
4. Applications in Electrical and Electronic
1. Tetrafluoroenamelled wire is used to manufacture micro motors, thermocouples, control devices, etc.
2. It is one of the indispensable materials for aviation, radar, television, rockets, and other industries.
3. Film: This is manufactured for capacitors, radio insulation and gaskets, and cable insulation.
4. The insulating layer in the middle of various instruments and the insulating material for motors and transformers.
5. Applications in medicine and other fields
1. In medical medicine, it is mainly used for medical devices and substitutes for some human organs, such as F4 enlarged artificial blood vessels and artificial cardiopulmonary dialysis membranes.
2. In other applications, such as non-stick pans.
3. Building materials, etc.
With the progress and development of society, human demand for polytetrafluoroethylene products is increasing, and the application range will be more and more wide.
