Metoda/koraki
1
Since there are many types of injection molding machines, it is necessary to correctly determine which type of injection molding machine or which specification series of injection molding machines should be used to produce this plastic product, such as general thermoplastic plastics, bakelite raw materials or PET raw materials, whether it is single color, two colors, multiple colors, sandwich or mixed colors. In addition, some plastic products have special requirements: such Kot visoka stabilnost (zaprta zanka), visoka natančnost, ultra visoka hitrost streljanja, visok strelski tlak ali hitra proizvodnja itd.
2
Determine whether the "large column inner distance", "mold thickness", "minimum mold size" and "mold plate size" of the machine are appropriate based on the mold size to confirm whether the mold can be placed. Determine whether the "mold opening stroke" and "mold ejection stroke" are sufficient to allow the plastic product to be taken out based on the mold and plastic product. The "clamping force" Tonaža določa plastični izdelek in plastični tip .
3
Pri izračunu teže končnega izdelka je treba upoštevati število plesni votline (koliko votlin v enem kalupu) je treba upoštevati; Za stabilnost mora biti volumen vbrizgavanja več kot 1 . 35 -krat večji od teže plastičnega izdelka . Pogoji, kot sta "razmerje stiskanja vijaka" in "tlak vbrizgavanja", se določijo glede na vrsto plastike.
Some finished products require high injection rate and injection speed to form stably, such as ultra-thin finished products. In this case, it may be necessary to confirm whether the injection rate and injection speed of the machine are sufficient, and whether it is necessary to use accumulators, closed-loop control and other devices. Generally speaking, under the same conditions, screws that can provide higher injection pressures usually have lower injection speeds, in obratno, vijaki, ki lahko zagotavljajo nižje tlake vbrizgavanja, imajo običajno večje hitrosti vbrizgavanja ., zato je treba pri izbiri premera vijaka, prostornine vbrizgavanja, tlaka vbrizgavanja in hitrosti vbrizgavanja (hitrost vbrizgavanja) navzkrižno premišljevanje in izklop .
