Ptfe is suitable for making corrosion-resistant parts, wear-resistant parts, sealing parts, insulating parts and medical equipment parts
1. Crystallized material, little moisture absorption. 2. Poor fluidity, easy to decompose, corrosion gas generated during decomposition. The molding temperature should be strictly controlled, the mold should be heated, the pouring system should be small powder resistance to the material flow resin often used powder metallurgy molding, use sintering method.
Sintering temperature is 360-375 degrees, not more than 410 degrees. Emulsion resins are usually processed by cold extrusion and resintering process and can form an anticorrosive coating on the surface of an article. If the product transparency and toughness are required, rapid cooling should be adopted.
Molding shrinkage :3.1-5.0%
Molding temperature: 330-380℃
Sintering conditions: the best temperature should not exceed 385 degrees, or the molecules will die, affecting the quality.
Material performance long-term use temperature -200- 260 degrees, ptfe has excellent chemical corrosion resistance, corrosion resistance to all chemicals, friction coefficient in the lowest plastic, and very good electrical performance, its electrical insulation is not affected by temperature, "plastic king" said.
Transparent or translucent state, the higher the crystallinity, the worse the transparency. The raw materials are mostly powdery resin or concentrated dispersion solution, with high molecular weight and high crystallinity thermoplastic polymer.
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