Shanghai Daoqin Plastics Co., Ltd.

几 year front, very less to PC material injection molding parts has issues. that is is use PC material comparison less, usually has Japan PC7025A and 1250Y两 types grade. production PC material 厂家越 越 more, and grade 自然也不 less.

　　 issues 跟 也就. various grade PC material injection molding technology process same, but also for process requirements 严格程 degree different, again use injection molding PC7025A and 1250Y injection molding process production other grade PC material, difficult 免就出 issues, can to PC injection molding parts has 时会经不起 impact property issues.

　　经 仔 fine research 我们发现, due to various grade PC material heat resistant degree and material features different, temperature degree, 甚至连烘 material temperature degree degree and material time for injection molding parts impact resistant property can generate heavy large effect/influence.

　　 usually in production PC7025A and 1250Y material 时, temperature degree generally can 调至290 to 310 degree, production certain grade PC material 时, again use this temperature degree injection molding, injection molding parts 就会变 very 脆. therefore, for this type of PC material, injection molding temperature degree most good need ultra- 290 degree, has can can also need more low can solution property issues. therefore, need flow property 足够充 type, most good use more low temperature degree production, anti injection molding parts 变脆造 formed strong/high degree unstable.

　　 its is material temperature degree effect/influence. PC7025A and 1250Y usually can to 110至120 degree, time can ultra- 4 small 时. has grade PC material can ultra- 100 degree, injection molding parts 也会变 very 脆, but also also 会起白雾, effect/influence appearance and transparent degree.

　　而 most easy 引起人 attention/notes, most easy issues, is material time. usually in injection molding PC7025A and 1250Y material 时, add 满50公斤 烘 material 斗, need to water generate, slow slow production small 时都不会出 what issues. is has PC material in material in ultra- 4 small 时, injection molding parts 不但会 generate obvious 白雾, also very 脆, but also time long 就越脆, 白雾越 more, parts 变蒙. this 时, if material production 6 small 时, that can add semi material, if formed injection molding parts has water gas generate, need more add and 勤一点 add material, issues 就不会 again 发生. has 时, also 会时不时 has 几啤出现白雾, this is has material by in material long 期烘烤, rear 时不时 has material to 炮筒, by mold 缘故.

　　 this is production in PC material injection molding parts 变脆, has 白雾 一 important 塬因. therefore need production good various grade PC injection molding parts, must attention/notes various grade material injection molding process features and requirements is. 当然, due to various grade property can different, strong/high degree and impact resistant can force has different, has grade impact resistant can force very 差.

　　 therefore in in the future production in, if PC injection molding parts 忽然出现脆 property issues and transparent degree issues 时, can excellent from temperature degree and material temperature degree and time 方面 考虑, this can let less very more 弯路.