PTFE popular approach to data compresion molding, memory extrusion ptfe parts molding could also be used. Utilizing distribution polymerization can be acquired resin insert extrusion as well as calendering. The particular problems had been: stress along with pre-molded post form, dimension, nevertheless, this generally 9. 8-34. 3MPa, along with a for filler injections resin utilizing twenty nine. 4-93MPa, the actual pushing path of the width around 600mm large empty also needs to possess 20 the 30min live period.
Addititionally there is the actual PTFE cast to the sintered empty mildew preheated to some sintering heat, the actual -- aspect stress, whilst air conditioning the actual warm push technique; method press automated data compresion molding technique, as well as using pressurised liquid for example data compresion molding technique.
Extrusion is actually using pre-sintered PTFE materials with regard to supports, pipes as well as information strategy. Generally split in to 2 types of up and down or even horizontally, however because of unequal filling up horizontally tube materials manufacturing, the actual multi-purpose up and down extrusion procedure. The procedure problems had been the following:
① fishing rod size ptfe material associated with 13 in order to 40mm, pass away dimension associated with 15. 1 in order to fouthy-six. 0mm, warmed duration 500-1100mm, the actual heating system heat is actually four hundred in order to 350 ℃, the actual air conditioning period of 150-200mm, the actual extrusion price had been 4-1m or they would.
② the tube size associated with Φ15 Φ40/Φ8 the Φ25, give food to canister and also the mandrel external size measurements associated with 28. 8 Φ16. 5-44. 5/Φ8. 9 the warmed period of 350 -- eight hundred, the actual heating system heat is actually four hundred the 350 ℃, the actual air conditioning period of a hundred and fifty in order to 250mm, a good extrusion price associated with 3. 8 1. 4m or they would. PTFE extrusion technologies to improve the actual extrusion path as well as developing the plurality associated with pace items.
Generally spread PTFE insert extrusion molding technique, an initial dispersion-type PTFE resin as well as extrusion helps for example raw ligroin (w. g. ninety the 120 ℃) or even a combination of whitened essential oil, place in the cup or even stainless flask move with regard to half an hour in order to evenly spread as well as soaked up, location 8-12h, pushed right into a empty materials to the extruder step, the actual stress 0. 69-3. 43MPa stress keeping period associated with thirty in order to sixty mere seconds. Follow a procedure created ptfe product susceptible to constant extrudate drying out stove (100 in order to three hundred ℃) may extrusion helps eliminated. After which sintered right into a sintering heater (360 the 380 ℃) quick air conditioning following sintering to acquire great items.
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