Shanghai Daoqin Plastics Co., Ltd.

  mold design most large difficult and is how to decrease/reduce abrasion loss. 毕竟, abrasion loss 越厉害, mold 修理费 use high, mold lifespan short. therefore for/regarding mold design and manufacturing 者 说, decrease/reduce abrasion loss is its important target/goal 之一, is this also is difficult 以克服 difficult 题, especially is mold in molding production has various 不利 情况发生.

    abrasion loss mold design and manufacturing 者试图 use 一 典 type methods decrease/reduce abrasion loss, use different metal material, use low abrasion loss coating, high hardness metal material, clamping design need increase large degree 以避免 clamping 锁死, and more more experience methods. however, can by design and mold manufacturing very good understanding types design is: molding process in negative and force mold parts abrasion loss, 也应该 by remove.

    1, conditions

    mold design and manufacturing 者关注 mold manufacturing step/link especially is mold assembly stage/phase. 他们进行 more 次尝试以 make mold parts can through assembly in 一起. in relatively good mold manufacturing in, 锤子, and is by prohibited use or use 受限. although large more mold is through assembly, mold parts has 紧密 公差配 combined. is this is in has 考虑应 force front lower. is 说, mold 处于一 types conditions lower.

    injection molding processing 商 attention/notes to mold 处于动态 conditions lower 状态. due to molding conditions 不断改变, mold parts can can 移动 位置, 例如, by 锁模, mold opening and clamping, different add hot and cooling hot force 学改变以 and injection pressure 引起 应 force make parts 移位. therefore, for/regarding injection molding processing 商 说, mold is active or is types equipment, it in production in is 静止不动.

    more year 实践, injection molding processing and mold manufacturing already 经认识 to mold is equipment, 而动态 conditions can 够引起 mold parts 偏离原 位置. force add in mold parts upper 时, this parts 会移出原 位置, and versus 邻 部 parts 碰撞, from make this parts between generate high negative and high force. this force generate 一 严 heavy rear is formed mold abrasion loss.

    2, clamping 途径

    injection molding processing already to degree abrasion loss is can 预期 应 force 引起, therefore 他们开始 use multiple design solution issues. its in most Common method is using/adopting cost day increase clamping technology, using/adopting high cost 直线联动 plant/unit, its principle is increase complex clamping adjustment, this type of adjustment make mold internal parts tube/pipe force 也不会发生移动. this type of plant/unit property, injection molding processing also using/adopting methods retardant mold internal parts 运动.

    will abrasion loss most small solutions

    its 实, solution 由运动引起 应 force most good methods non simple. if parts A处于部 parts B pressure lower make 两 部 parts 都处于 pressure lower, that remove pressure solution issues. remove force can through types revolutionary property methods formed, is through combined design make parts in mold inner can 移动.

    can is, if parts A due to pressure 而移动, that 就允许部 parts B随 A meanwhile 移动. is 两 部 parts meanwhile 移动, its force can by decrease/reduce or remove, make abrasion loss speed reduce. this type of design 依赖于特殊 design concept, 即悬浮 concept.

    允许部 parts or 者悬浮 concept and mold manufacturing 商 传统理念 is full 背离. this is types and experience and 传统理念无关 concept. 业界逐渐认识 to types can mold type type for/regarding reduce abrasion loss most has 效（例如, is belt/tape has inner products design mold ）. 今天, that already nano this concept will its use to mold design in injection molding processing 商, positive in 打造异常 formed mold, large large mold repair use.

    injection molding processing use has copper alloy mold use improve/increase cooling 效果, can is copper alloy easy loss bad. is also 想方设 method improve/increase copper alloy wear resistance, however this also significantly reduce hot property can. therefore injection molding processing can by selection fast speed molding improve/increase mold cooling property can or more good for resistant abrasion loss. formed use copper alloy mold injection molding processing already 经意识 to, mold parts can can is will mold abrasion loss decrease most small design concept. mold parts can make injection molding processing obtain most small abrasion loss and high speed molding cycle.

    formed key/critical and 举例

    mold parts formed key/critical is 确定哪 部 parts will by 悬浮起, and how to design make it 们悬浮起. injection molding processing in formed 功确定 this solution/scheme rear, can obtain fast speed molding cycle and relatively low mold 修理费 use.

    below/following is 例, if parts toward injection molding mold internal 移动, that 么移动部 parts abrasion loss rate will non high. in 本案例 in, most can can to abrasion loss parts is A部 parts （喷 tube/pipe 芯）, B部 parts （ ejection sleeve/set 筒） and C部 parts （B侧芯）. its in, tube/pipe 芯A abrasion loss in outer 径处, is ejection sleeve/set 筒B and tube/pipe 芯A very 紧; ejection sleeve/set 筒B inner abrasion loss, is its and tube/pipe 芯A配 combined 太紧密. ejection sleeve/set 筒B outer 径会因 is parts C, 即B侧芯 internal scratch 而引起 abrasion loss; B侧芯 inner 径会因 is ejection sleeve/set outer 侧 摩 scratch 而引起 abrasion loss.

    above analysis, can to below/following 建议: 每一 部 parts using/adopting “悬浮” or more add design, from make it can light micro 移动, 进而消 remove parts between force; and other 两 部 parts direction versus is ejection sleeve/set 筒, in design this parts 时, 应该尽 amount decrease small it in 移动时 应 force, from significantly decrease/reduce abrasion loss; in design parts C时, 也应该 make its can light micro 悬浮（ use belt/tape and solid 定）,以此 decrease/reduce loss can can property.