Shanghai Daoqin Plastics Co., Ltd.

filling 不满　 1. injection molding parts parts defect injection molding parts process full, is mold cavity has plastics or injection molding parts process less certain fine 节. 2. can can issues causes (1). injection molding parts speed degree 不足. (2). plastics short 缺. (3). screw in 行程结束处没留 lower screw material. (4).运行 time 变化. (5).射 material temperature degree low. (6). injection molding parts pressure 不足. (7).射嘴部 separation by 封. (8).射嘴 or material outer add hot device can as. (9). injection molding parts time short. (10). plastics in material 斗喉壁 upper. (11). injection molding parts machine amount small （即 injection weight or can force ）. (12). mold temperature low. (13).没 has dry injection molding parts mold anti 锈油. (14).止退 ring loss bad, material has phenomenon. 3. remedy methods (1). increase injection molding parts speed degree. (2).检查 material inner plastics amount. (3).检查 is positive setting injection 行程, need 话进行 more 改. (4).检查止逆阀 is abrasion loss or 出现裂缝. (5).检查运 as is stability. (6). increase temperature degree. (7). increase back pressure. (8). increase injection molding parts speed degree. (9).检查射嘴孔 has has material or 未塑化 plastics. (10).检查 has add hot device outer use table/sheet can amount is positive 确. (11). increase screw toward front time. (12). increase material 斗喉区 cooling amount, or reduce material rear temperature degree. (13). use relatively large injection molding parts machine. (14).适当 rise high mold temperature. (15).清理 dry injection molding parts mold inner anti agent. (16).检查 or more 换止退 ring. 1. injection molding parts parts defect can easy in transparent injection molding parts parts “空 gas 阱” inner to can in transparent plastics in. this and thick degree has 关, but also plastics shrinkage injection molding parts parts in 心而引起. 2. can can issues causes (1). injection molding parts mold separation filling. (2).止流阀 不 positive 常运行. (3). plastics 未彻底 drying. (4).预塑 or injection speed degree fast. (5). certain 特殊材 material application equipment production. 3. remedy methods (1). increase material amount. (2). increase injection molding parts pressure. (3). increase screw toward front time. (4). reduce melt temperature degree. (5). reduce or increase injection molding parts speed degree. （例如 for non crystallization type plastics need increase 　　 add 45% speed degree ）. (6).检查止逆阀 is 否裂开 or method as. (7).应 according to plastics features improvement drying conditions, let plastics drying. (8).适当 reduce screw speed and increase large back pressure, or reduce injection speed degree. Shanghai plastics has company