Natural oxidation and corrosion of the valve stem, because the surface of the valve stem packing is oxidized, and ferroferric oxide (rust) is formed, which will cause the valve stem to become thin and cause leakage; For example, the use temperature of pure PTFE must be 150℃, filled with PTFE250℃, an...

The pipeline is relatively fixed. Except for the coal slurry pipeline which is still in the brewing stage, other pipelines for conveying media have been successfully constructed and operated in China. 5. The characteristics of long-distance pipelines Long-distance pipelines are one of the five major...

At present, most foreign oil seal lip pieces adopt moulded threaded type, while domestically, the tu ed threaded type is basically adopted.. However, due to its complex structure, large pressing force and low life span, it is rarely used. By tu ing the thread on the end surface, the follow-up type o...

The opener, mixing box, carding machine and netting machine must be grounded as a whole to eliminate or reduce the static electricity generated during fiber transfer, carding and netting.ufeffAs we all know, PTFE fiber has high static electricity, low crimp, smooth fiber, poor cohesion, and high den...

u3000u3000 Teflon PTFE: PTFE (polytetrafluoroethylene) non-stick coating can be used continuously at a high temperature of 260 ℃, the highest use temperature can reach 290-300 ℃, very low friction coefficient, good wear resistance and excellent chemistry stability.ufeff Teflon spraying (paint), the ...

Filled products containing glass fibers are suitable for sintering in nitrogen. . has developed rapidly in chemical anti-corrosion.. The sintering process of the filled product is the same as that of pure PTFE. Commonly used fillers according to these requirements are: glass fiber, carbon fiber, gra...

The reactivity of these compounds is very high. The principle is: Na transfers the outermost electrons to the empty orbital of naphthalene to form anionic radicals; then forms an ion pair with Na+, releasing a large amount of resonance energy, and forming a mixed solution of dark green metal organic...

PTFE anti-corrosion products can replace a large number of alloy material products, increase the working capacity of equipment, and reduce downtime and maintenance. In the wave of adopting new technologies and new materials to develop new anti-corrosion products, PTFE anti-corrosion products stand o...