PTFE gasket manufacturing process
PTFE gasket manufacturing process
1. Preparation of raw materials; ingredients: pure F4 products, raw F4 fine resin, crushed and sieved
2. Mold preparation: clean the mold
3. Weigh, according to the formula G=PV (where G is the amount of feed and P is the density of the pre-product (2.18g/cm3)
4. Feeding: Distribute F4 resin evenly on the entire pressing surface.
5. Pre-forming (pressing): Calculate the gauge pressure of the press according to the formula, and set the gauge pressure of the press. Suppress
6. Demoulding and trimming: take the semi-finished product out of the mold, trim its surface to make the surface smooth and the edges neat. Ready to shape.
7. Sintering: Put the semi-finished product into the sintering furnace slowly, put it in an appropriate amount, and heat it up to about 390 degrees for one hour, and then keep it warm for one hour. After about four hours, it will start to cool down. After about four hours, it will reach the indoor temperature and proceed to the finished product. Out of the oven, the final shape is finalized.
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