Shanghai Daoqin Plastics Co., Ltd.

very more in adjustment process 时喜欢 use very more grade pressure speed degree processing product, and in machine use very more grade pressure speed degree machine high 档; its most simple process is most good, is 当你越 complex molding conditions for ring and sleeve/set requirements high, 当然, if is production high grade product, ratio 如, electronics parts and other, equipment and sleeve/set ring requirements very high, this is is what in very more use equipment causes, 当然我也不怀疑资本家良心发现;
and in very more sleeve/set equipment 都越 越 high grade, is is in product 各方面 requirements 也越 越 high, ratio dimensions, surface, and internal stress and other;
但 is although tool 越 越先进, simple is most good; more grade speed degree and pressure main/primary function is gas already;
因 is very more mold structure is comparison complex, rear will is large to mold structure and mold 改良; in is 顺便提一 lower, mold has slip block （行位）, 斜顶, 抽芯, and other; very more product structure is very complex, therefore molding conditions can can use to more grade speed degree pressure,
holding pressure: very more is, holding pressure is machine upper 面标明 holding pressure 俩 字 pressure is holding pressure, its 实错, 第一段以 rear 都应该叫 holding pressure, upper 第一段叫充模 pressure, also injection pressure, in mold cavity fast need 充满时以 rear pressure main/primary function is use filling mold cavity, main/primary is use anti product shrinkage, or generate bubbles and other function; therefore can upper is holding pressure; and meanwhile 我告诉 large parts is: again good electrical has 一 响应 time, generally electrical 脑 响应 time in 0.5—0.05 between, therefore use to more 段 时候, can can already 经浪费 几秒 time and in this time inner, gate already 经封闭;
more 段射胶 main/primary is for also 直角, 死腔, thin degree and other setting, is complex product necessary use to very more speed degree pressure molding, is simple cost and complex cost is full different, that how to setting more speed degree pressure 呢? product 我们应该 in setting parameters front need plan good injection 曲线, 当然我们不 can can setting good very specific 数字, is machine pressure can can 不一样, 但我们应该 very 清楚他 曲线 requirements; generally 讲, in 直角, and other need micro 停顿一 lower, is need slow speed, is this type of is most easy gas, is in mold basic attention/notes to use 直角, also has is thin or fine small 道 时候你就 need separation plastics product types fast speed or slow speed, high temperature material is 他 玻璃态 temperature degree relatively high, need high pressure fast speed through, is if is hot property plastics need use slow speed 处理, is high speed very easy generate hot, make plastics separation understanding color 甚至烧焦; this is is what 针尖胶口 generally use slow speed causes;
how to setting holding pressure and holding pressure 位置呢
generally according to plastics flow property setting; 象PP, PE, PA and other flow property can relatively good plastics, generally in product has thick 壁 时候, in product 充满85－90% 时候就应该转 holding pressure, and holding pressure pressure generally in 60—80%以 inner can; for/regarding flow property generally product generally in 90—95% 时候转 holding pressure, holding pressure setting generally in 70—85% left right; flow property very plastics ratio 如PMMA and other need in mold cavity 充满95% left right 时候转 holding pressure, and holding pressure pressure generally relatively high; in has 时候因 is product thick relatively thick 时候, can use high pressure low speed in short time inner pressure lower, again holding pressure;