Shanghai Daoqin Plastics Co., Ltd.

         how to positive 确清洗 screw

        1, selection positive add hot plant/unit

         use or remove solid in screw upper plastics, is plastics processing mono most Common is most has 效 办 method, for can use 乙炔焰 清洁 screw. 乙炔焰 temperature degree can 达3000°C, use 乙炔焰 清洁请洁 screw will not only bad screw metal features, meanwhile also will significantly effect/influence screw machine 械公差.

         if 乙炔焰 in screw certain 部位时火焰变 is 持久 蓝 color, that 么意味 screw this 一部位 metal structure 发生 改变, this will 导致该部位 wear resistant loss property reduce, 甚至发生 resistant abrasion loss and metal 剥离. another using/adopting 乙炔焰 local add hot 也会造 formed screw hot, from 而导致 screw bending. large more screw using/adopting 4140.H.T.钢 manufacturing, 公差十 separation 紧密, generally in 0.03mm以 inner.

         screw degree large more in 0.01mm以 inner, screw 经乙炔焰烘烤 and cooling rear, usually very difficult to 原始 平直 degree. positive has method: in screw use rear using/adopting 喷灯进行清洁. is this screw belt/tape has processing process in hot, screw hot amount distribution still is uniform.

        2, selection positive 确 清洁 agent

        商 product high degree 发达 今天, market upper 不乏形形 color color screw agent (screw material), large more is price 不菲, use good bad 不一. is use product 化 清洁 agent, according to different and production 情况而定; plastics processing enterprise can according to production 情况, use different resin screw material, can is mono 位省 一笔不 small 开支.

        3, selection positive 确 清洁 methods

        清洗 screw 第一步 is add material sheet/plate, is material 斗底部 lower material 口;然 rear reduce screw speed 至15-25r/min,并 will this speed degree maintain to front melt 流停止 flow is 止. machine has add hot temperature degree 都应设置 in 200°C. machine to this temperature degree, 立即开始清洁.

         according to extrusion process different (can can need lower 模头以 decrease/reduce extrusion machine front pressure high 危险), in 清洗时必 must 由一 人 完 formed: as from control sheet/plate screw speed and 扭矩, meanwhile extrusion pressure ensure system pressure high. in process in, screw speed maintain in 20r/min之 inner. in low pressure application in, 首先不 need lower 模头进行清洗. in extrusion material from processing resin full formed resin 时立即停 machine lower 模头, rear heavy new screw (转 speed in 10r/min between inner), make 残留 清洁 resin 流出.

        4, selection positive 确 清洁工 tool

         positive 确恰当 工 tool and 清洁材 material 应包括:

         heat resistant sleeve/set;护目镜; copper 刮刀; copper 刷; copper filament 网; hard acid; electrical 钻; machine 筒尺;棉布.

        一旦清洁 resin extrusion, can will screw from equipment in 抽出. for/regarding belt/tape has cooling system screw, in screw equipment (该 equipment can can belongs to gears 箱)之 front, will soft tube/pipe tube/pipe and 旋转连接 parts lower. use screw equipment will screw toward front 推进露出4-5 螺 block 位置以便清洗.

         screw upper resin can use copper copper 刷进行清理. in outer screw upper resin by dry rear, in use screw equipment will toward front 推进4-5 螺 block, 并继续清洁. 如此反复, most large separation screw by launch machine 筒.

        一旦 large separation resin by remove, screw upper hard acid;接 use copper filament remove 掉剩余 残渣, screw by copper filament scratch light rear, use 棉布进行 most rear scratch 拭. this is ensure screw lower one-time production 时不会 belt/tape has 任何 污染 material. in screw by full dry rear, can will its in 一边直 to other machine tool by full dry 净. if screw need 保存, in surface coating upper 一层油脂以 anti 生锈.

        清洁 screw for can use made tool, made filament 刀, or 者撬杆 remove viscous in screw upper plastics, is loss bad screw and machine surface.

         how to positive 确清洗 machine 筒

        清洗 machine need ratio screw 方便容 easy more 啊, is non important.

        1) in 准备清洗 machine 筒时, machine temperature degree by in 200°C;

        2) will 圆形钢刷拧接钻杆 and electrical positive formed 清洁工 tool, rear use copper filament 网包住钢刷;

        3) in will 清洁工 tool machine front, need machine in hard acid, or will hard acid in 清洁工 tool copper filament upper;

        4) in copper filament 网进入 machine 筒, 就启动 electrical make its 旋转, meanwhile is make it front rear 运动, to this type of front rear 运动变 没 has retardant force is 止;

        5) in copper filament 网移出 machine rear, use 一束棉布 in machine in scratch remove 任何清洁 resin or has acid material;经 数次 this 样 回 scratch 拭, machine 筒 清洁就算 large formed. 经 彻底清洁 screw and machine can assembly 以进行 lower one-time production!