How to calculate the weight of PTFE rod - 50mm PTFE rod

October 15, 2021

PTFE rods are widely used in seals/gaskets, ring materials, wear plates/seats, insulation parts, corrosion resistance industries, mechanical parts, linings, oil and gas, petrochemical industry, chemical industry, instrument equipment manufacturers Wait.

Bar: Diameter: 6～200mm.x200mm/1000mm

Special size can be customized

Color: White PTFE Technical Parameters Item Unit Index Density g/cm32.1-2.3

Flexural strength Mpa11-14

Tensile strength MPa21-28

Friction coefficient / 0.04

Water absorption %<19

Dielectric strength KV/mm10

Working temperature °C-1800-260

Melting temperature °C325

The PTFE rod is a high-quality pure PTFE product. The characteristics of PTFE are available in PTFE rods.

Polytetrafluoroethylene (PTFE) has been used in chemical industry, petroleum for its excellent high and low temperature performance and chemical stability, good electrical insulation properties, non-adhesion, weather resistance, flame retardancy and good self-lubrication. , textiles, electronics, medical, machinery and Other fields have been widely used.

1, the application of anti-corrosion properties As rubber, glass, metal alloys and other materials in the corrosion resistance defects, it is difficult to meet the harsh conditions of temperature, pressure and chemical media coexist in the environment, resulting in considerable losses. The PTFE material, with its excellent corrosion resistance, has become the main corrosion-resistant material in the petroleum, chemical, and textile industries. Its specific applications include: conveying pipes for corrosive gases, exhaust pipes, steam pipes, high pressure oil pipes for rolling mills, high and low pressure pipelines for aircraft hydraulic systems and cold pressure systems, distillation towers, heat exchangers, kettles, towers, tanks Lining, valves and other chemical equipment.

The performance of the seal has a great influence on the efficiency and performance of the entire machine equipment. PTFE material has the characteristics of corrosion resistance, aging resistance, low coefficient of friction, non-stickiness, wide temperature range, and good elasticity, making it very suitable for the manufacture of seals with high corrosion resistance and using temperatures above 100°C. Seals for grooved flanges of machines, heat exchangers, high pressure vessels, large diameter vessels, valves, pumps, glass reaction pots, flat flanges, seals for large diameter flanges, shafts, piston rods, valve stems, Worm pump, tie rod seals, etc.

2. Application of low-friction performance in the application of load Due to the friction part of some equipment, it is not suitable to lubricate, for example, in case where the lubricating grease is dissolved by the solvent and fails, or in the industries of papermaking, pharmaceuticals, food, textile and other industries, lubricants need to be avoided. Contamination, which makes filled PTFE materials the most ideal material for oil-free lubrication of mechanical equipment parts (directly under load). This is because the friction coefficient of this material is the lowest among known solid materials. Its specific uses include bearings for chemical equipment, papermaking machinery, and agricultural machinery, used as piston rings, machine tool guides, and guide rings; it is widely used as bridges, tunnels, steel trusses, large chemical pipelines, and storage tanks in civil engineering projects. Support sliders, as well as bridge supports and bridge swivels.

3, in the application of electrical and electronic applications PTFE material inherent low loss and low dielectric constant makes it can be made into enameled wire for micro-motors, thermocouples, control devices, etc.; PTFE film is the manufacture of capacitors, radio insulation pads, Ideal insulation materials for insulated cables, motors and transformers are also indispensable materials for aerospace and other industrial electronic components; the use of fluorine plastic films has high oxygen permeability and low permeability to water vapor. Transient, can produce oxygen sensor; use of fluorine plastic in high temperature, high voltage, the phenomenon of polar charge off phenomenon, can be made of microphones, speakers, robot parts, etc.; use of its low refractive index characteristics, can manufacture optical fiber.

4, in the medical and pharmaceutical applications Expanded PTFE material is purely inert, has a very strong biocompatibility, does not cause the body's rejection, no physical side effects on the human body, can be disinfected by any method, and has a multi-porous structure, It can be used for a variety of rehabilitation solutions, including artificial blood vessels and patches for soft tissue regeneration and surgical sutures for vascular, cardiac, general surgery and orthopedic surgery.

Application of anti-sticking properties

The PTFE material has the smallest surface tension in a solid material, does not adhere to any substance, and also has excellent characteristics of resistance to high and low temperatures, thereby making it very versatile in applications such as making non-stick pans. The anti-sticking process mainly includes two types: mounting a PTFE component or sheet on a substrate, and heat-shrinking a PTFE coating or a glass-laminated varnish onto a substrate.

With the continuous development of material application technology, the three major shortcomings of PTFE materials: cold flow, hard solderability, and difficult melt processability are gradually being overcome, thus making it impervious to optical, electronic, medical, petrochemical oil transmission, etc. The application prospects in various fields are even broader.

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