Ptfe can add different fillers, the selection of fillers should basically meet the following provisions: 380℃ high temperature resistance, that is, the sintering temperature of tetrafluoroethylene products; And contact with the substance does not react; And tetrafluororesin has excellent mixability; It can improve the wear resistance, cold flow, heat transfer and thermal expansion coefficient of PTFE products.

Polytetrafluoroethylene sheet molding and calcined rotary cutting processing: polytetrafluoroethylene sheet molding and calcined rotary cutting. T- Troubleshooting the cause of the name and countermeasures of the preplastic molded plate surface pattern and cracks:

Teflon sheet

(1) The thermal stability of resin is poor. A resin with excellent thermal stability should be selected.

(2) Mixed application of resin with different batch numbers. Apply the same batch of resin.

(3) preforming pressure is too high. Reduce as much as possible.

(4) Improper control of the charging process. Should be slow symmetrical compaction, can not impact compaction.

(5) improper mold coordination. Mold fitting structure should be improved.

In addition, the mold should be placed in the center of the punching machine table, the connection is firm and reliable. Surface roughness and white spots of the premolding mold: (1) The preforming pressure is too low. Increase unit area pressure as far as possible, and maintain sufficient pressure holding time. (2) the size of the resin is too large. The resin with smaller particle size should be selected, and the average particle size of the resin should be 25 and 200pm; Premolded mold surface discoloration and indentation: (1) resin low medium. (2) The resin spread too low, the resin spread too low.