Shanghai Daoqin Plastics Co., Ltd.

in injection molding processing industry, temperature upper rise issues let very 烦恼, temperature upper rise not only effect/influence machine as, but also also heavy effect/influence machine use lifespan! that need how to anti injection molding temperature upper rise?
　　
　　我们 need from degree 指数, has good liquid pressure dispersion hot system, degree, other comprehensive property can and other analysis.
　　
　　（1）黏 degree 指数（VI）
　　
　　该 indicators relatively 直接 反映 油 product degree temperature degree 变化而改变 property 质, （即油 黏 temperature features ）, 油 黏 degree relatively high, table/sheet types 油 黏 degree temperature degree 变化而改变 程 degree relatively small; 反之, relatively large. outer 知名厂家（如美孚, housing/shell and other ） resistant abrasion liquid pressure 油 黏 degree 指数均 is VI≥110, Domestic high grade resistant abrasion liquid pressure 油 黏 degree 指数VI=95 left right. outer production high degree liquid pressure 油（HV） and more grade machine machine 油 黏 degree 指数均 is VI>140; inner 此灯油则达不 to water 平. this for/regarding injection molding machine using/adopting Domestic liquid pressure use must especially attention/notes. degree reduce will make 油 适应 ring temperature degree scope/range shrink small, non use can 时, toward product 厂家查询 related material, must for use scope/range 做适当 adjustment, necessary also 应改变 equipment related setting value （如极限 temperature degree and other ）.
　　
　　（2）良 good liquid pressure dispersion hot system
　　
　　 for/regarding injection molding machine liquid pressure dispersion hot system （ more 确切 说应 is liquid pressure temperature control system ） improvement, although 各厂家 using/adopting specific methods has different, basic 思路却 is 一样, liquid pressure dispersion hot device is has material 堵塞, dispersion hot efficiency decline, necessary 时清洗 dispersion hot device.
　　
　　（3） liquid pressure degree （ISO VG, degree mono is mm2/s)
　　
　　确定 liquid pressure degree is, in liquid pressure 回路工 as temperature degree and efficiency front lower, make （ used for and and other parts ） liquid pressure degree most scope/range （16-36x10-6mm2/s); and ring most low temperature degree for short time cold 启动 黏 degree ≤1000X10-6mm2/s; and for short time most high 泄漏油 temperature 90℃时 黏 degree ≥10X10-6mm2/s.
　　
　　（4） other comprehensive property can
　　
　　因现代 injection molding machine liquid pressure system as pressure relatively high （≥14MPa）, liquid pressure most high as temperature relatively high （50℃ left right ）, therefore is ensure in positive 常 换油 cycle inner liquid pressure system can positive as, requirements is system lubricated property, oxidation property, resistant abrasion property, anti anti property, resistant emulsification property, resistant property, resistant 剪切安定 property and pressure negative property and other tool has good quality. especially selection use 油时, necessary attention/notes meet/satisfy by use standards requirements. 否则, in equipment use process in can liquid quality combined requirements 而出现 system hot, loss bad parts and other heavy issues.