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Should be shortened appropriately. Uneven pressure on the preform. Should be increased appropriately. When the temperature rises to about 330℃, the outside of the sheet will first melt and then gradually penetrate inward.There is a gap on the blade. Impact pressure is not allowed. Hard impurities are stuck between the blade and the surface of the rotary cutting during rotary cutting. If the temperature is too fast, the plate is prone to strain and cracks.
The preform is scratched during demolding, resulting in sintering cracks. Re-adjust the rotary knife and install the tool holder. In addition, the mold should be placed in the center of the press table, the connection is firm and reliable The preforming pressure is too low. The greater the pressure, the slower the pressure, and the longer the holding time The heating or cooling speed is too fast. Resins with the same batch number and consistent performance should be used. Should be reduced appropriately. Should be adjusted to parallel.
The holding time is too long. Should be slowed down appropriately. BBQ grill mat Such as sintering temperature, heat preservation and cooling time, etc. Prolong the holding time The molecular weight of the resin is too small or the distribution is uneven. It should be stopped for treatment, and the impurities between the plate and the blade should be removed frequently The holding time is too short. Should stop and clear. Generally, it is more appropriate to cool down at a speed of 50℃. Improper mold fit. The preforming pressure is too high.
Uneven feeding.Fault name The thermal stability of the resin is too poor. In order to melt the entire sheet, a certain heating rate and constant temperature time must be controlled. The cooling rate is related to the crystallinity of the plate and is an important parameter affecting its physical properties. A resin with a smaller particle size should be selected, and the average particle size of the resin is required to be 25, 200 pm The content of low-component impurities in the resin is too high. The heating rate should be properly controlled.
The holding time is insufficient. Generally, when the thickness of peeling is 0. It is worth noting that only when the thermal stability of the resin is good, the sintering temperature and the holding time can be increased appropriately The two sides of the board are not equal in length or the middle is raised and the two ends are loose The sintering conditions are unreasonable. The resin particle size is too large. Uneven feeding. Should be sharpened or changed The parison contains metallic impurities. The mold matching structure should be improved. Poor mandrel installation. The mold should be demoulded carefully to avoid collision. The sintering conditions should be adjusted.
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