Shanghai Daoqin Plastics Co., Ltd.

         has 朋友问, is has about/regarding injection molding parts mono heavy related standards 吗? process, mold, machine for mono heavy effect/influence type related material?

         product weight stability is injection molding production 者希望达 to meanwhile product weight is quality tube/pipe in important control parameters.

         injection molding parts weight stability property is production stability separation conditions, is necessary conditions, weight large production stability property low, this production is unstable production, or production 不“ precision ”.

         weight stability degree high is precision production important indicators. precision injection molding production, its although is injection molding machine, precision production is production 各方面 meanwhile stability 效果, material material, mold, injection molding machine and equipment and other. other indicators control very good machine can 发挥出 stability property, if other parameters indicators unstable, that precision production 肯定达不 to.

         that indicators has what?

         injection molding machine 5 large control parameters - - - pressure, speed degree, 位置, time, temperature degree for weight 变化都 has effect/influence, in production 不变动 parameters lower, for product weight stability property effect/influence most large temperature degree.

        1） liquid pressure temperature degree and pure degree. liquid pressure temperature degree effect/influence viscosity, effect/influence control pressure and speed degree, especially is equipment is full ring control 时候. pure degree low 时候, has can can 会堵塞各 ratio/proportion amount 阀. therefore liquid pressure effect/influence weight stability property. effect/influence temperature main/primary factors is temperature cooling device efficiency, therefore need attention/notes external ring water hardness and degree, if hardness high degree 差, cooling device efficiency 一定差, temperature rise high is difficult 免.

        2） mold temperature degree, especially is type temperature degree. this 取决于两点, molding cycle stability property and cooling water stability property, cooling water amount large cooling good hardness low 不会堵 water 路.

        3） material temperature degree and amount stability property. temperature degree stability property main/primary is back pressure combined 理, need has degree rise temperature 情况, generally back pressure low 于30kg material 筒不会自动 rise temperature. amount stability property main/primary is property, screw upper small parts abrasion loss 情况, has abrasion loss amount stability.

        4） other: material drying 效果. material degree, if has material melt material amount production 也不会 stability.

         if upper 述都做 to 话, lower is machine density, precision injection molding in weight heavy degree is non important indicators, generally is, “普通 injection molding machine weight heavy degree is 1%, precision injection molding machine weight heavy degree low 于0.5%, ultra- precision injection molding machine weight heavy degree low 于0.3%”.