Shanghai Daoqin Plastics Co., Ltd.

一, front 言当我们接 to new injection molding parts mold 需打样 mold trial 时, 我们总 is can 早一 试出一 结果且祷求 process 顺利以免浪费工时并造 formed 困扰. in 此我们必 must 提醒二点: 第一, injection molding parts mold design and manufacturing has 时也会发生错误, in mold trial 时若不 improve/increase 警觉, can can small 错误而 generate large loss 害. 第二, mold trial is need ensure rear production 顺利. in mold trial process in has combined steps and 做适当 记录, method amount 产时 顺利进行. more strong/high is 「 injection molding parts mold use 顺利 话 will speed increase profit recycling, 否则 造 formed cost loss more injection molding parts mold 本身 造价」. 二, mold trial front precautions 1. understanding injection molding parts mold has material: most good can injection molding parts mold design 图面, analysis, injection molding parts mold 技师参 add mold trial as. 2. in as upper its machine combined as: need attention/notes has 否刮伤, parts and and other phenomenon, toward slip sheet/plate as is 否确实, water and gas tube/pipe has 无泄漏, injection molding parts mold 之开程若 has made 话也应 in upper 标明. above as can in front to 话, can in 挂模时发现 issues, again injection molding parts mold 发生 工时浪费. 3. 当确定 injection molding parts mold 各部动 as rear, need selection combined mold trial injection shot machine, in selection attention/notes (a) injection shot amount (b)导杆 wide degree (c) most large 开程(d) parts is full and other. 一切都确认没 has issues rear lower steps is injection molding parts mold, 吊挂时应 attention/notes in upper has sheet/plate and mold opening front 吊钓不 need lower, 以免夹模 sheet/plate or fracture injection molding parts mold 掉落. injection molding parts mold rear again fine injection molding parts mold 各部份 machine as, slip sheet/plate, 顶针, structure and made and other as is 否确实. attention/notes material and material is for 准. lower 一步则 is attention/notes clamping as, 此时应 will pressure low, in and low speed clamping as in attention/notes and is has can 不顺畅动 as and and other phenomenon. 4. improve/increase injection molding parts mold temperature degree: based on formed product use raw materials property can and injection molding parts mold large small selection mold temperature control machine will injection molding parts mold temperature degree improve/increase production must temperature degree. mold temperature improve/increase rear must again 次检视各部份 动 as, is 钢材因 hot 膨胀之 rear can can 会引起卡模 phenomenon, therefore must attention/notes sliding, has and generate. 5.若工 injection molding parts processing inner has 推行实验 plan method 则, 我们建议 in adjustment mold trial conditions one-time can adjustment conditions, 以便区 separation mono conditions for formed product effect/influence. 6.依 raw materials different, for using/adopting 原枓做适 degree 烘烤. 7. mold trial and will amount can can using/adopting raw materials. 8.勿完 full material mold trial, has color demand, can 一并安排试 color. 9. internal stress and other issues effect/influence processing, mold trial rear formed product stability rear add 以二次 processing injection molding parts mold in slow speed combined upper rear, need good pressure, as 几次, has clamping pressure and other phenomenon, formed product generate flash/burrs and injection molding parts mold deformation. above steps 都检查 rear again will speed degree and pressure low, will safety and ejection 行程定 good, again upper positive 常关模 and speed degree. if and most large 行程 限 made 开关时, mold opening adjustment short, in mold opening most large 行程之 front high speed mold opening as. 此乃因 in 装模期间整 mold opening 行程之 in, high speed as ratio low speed relatively long 之故. in plastics machine upper machine ejection 杆也必 must in full speed mold opening as rear function, 以免顶针 sheet/plate or sheet/plate force deformation. in as 第一模 injection shot front again for below/following 各项: (a) add material has long or 不足. (b) pressure is high or low. (c) speed degree has fast or slow. (d) processing cycle is long or short. anti formed product short 射, fracture, deformation, flash/burrs 甚至伤 and injection molding parts mold. processing cycle short, will formed product or ring formed product. this category of can can make 你花费两三 small can formed product. processing cycle long, 则模蕊 fine low can can material shrink 紧而断掉. 当然您不 can can material mold trial process can can 发生 一切 issues, 但事先做 充份考虑 and measures can 帮助您避免严 heavy 并昂贵 loss 失. 三, mold trial main/primary steps is amount 产时无谓 浪费 time and 困扰, has necessary resistant adjustment and control various processing conditions, 并找出 most good temperature degree and pressure conditions, made standards mold trial 程序, can used for day as methods. 1.查看 material inner plastics material is positive 确无误, and has 否依规定烘烤, （ mold trial and production use different raw materials very can can different 结果）. 2. material tube/pipe 清理务求彻底, anti poor understanding material or material 射入模 inner, is poor understanding material and material can can will injection molding parts mold 卡死. testing material tube/pipe temperature degree and injection molding parts mold temperature degree is combined processing raw materials. 3. adjustment pressure and injection shot amount production appearance 令人满意 formed product, is can flash/burrs especially is also has certain formed product 尚未完 full solid 时, in adjustment various control conditions front 应思考一 lower, is rate micro 变动, can can 会引起甚 large 充模变化. 4. need resistant and other to machine and injection molding parts mold conditions stability lower, is in type machine can can need and other 30 separation above. can utilizing this time formed product can can issues. 5. screw front time can short 于闸口 plastics solid time, formed product weight reduce loss and formed product property can. injection molding parts mold by add hot screw front time 亦需酌予 add long pressure formed product. 6. combined adjustment decrease low processing cycle. 7. new conditions less 运转30 separation 钟以至 stability, rear less production full sample, in its tool upper day 期, amount, 并按模穴 separation 别放置, testing its 确实运转之 stability property and combined control 公差. （ for more injection molding parts mold has value ）. 8. will sample amount 并记录 its important dimensions （应 and other sample cooling room temperature again amount ）. 9. sample amount dimensions as comparison, attention/notes: (a) dimensions is stability. (b) is has certain dimensions has increase or reduce trend 而显示 machine processing conditions still in 变化, defect temperature degree control or pressure control. (c) dimensions 之变动 is in scope/range inner. 10. if formed product dimensions 不甚变动而 processing conditions positive 常, 则需观察 is 否每一模穴之 formed product its quality can by 接受, its dimensions can in 容许公差之 inner. amount 出连续 or large or small 于平均 value 模穴号记 lower, 以便检查 injection molding parts mold dimensions is positive 确. 记录且 analysis data is injection molding parts mold and production conditions need, is future amount 产时之参考 based on. 1. make processing time long, stability temperature degree and liquid pressure temperature degree. 2.按 has formed product dimensions large or small adjustment machine conditions, sink marks rate large and formed product 显 射 material 不足, can 资参考以 increase dimensions. 3.各模穴 dimensions large or small 予以修 positive 之, 若模穴 and dimensions positive 确, that 么就应试改 machine conditions, 如充模 speed rate, injection molding parts mold temperature degree and pressure and other, 并检视 certain is 否充模 relatively slow. 4.依各模穴 formed product combined or 模蕊移位, 予以各别修 positive, can again 试调充模 rate and injection molding parts mold temperature degree, improvement its uniform degree 5.检查 and injection shot machine fault/failure, 如油泵, 油阀, temperature degree control device and other and other defect 都会引起 processing conditions 之变动, make again injection molding parts mold can in defect machine 发挥良 good as efficiency. in has 记录数 value rear, 保留一 sleeve/set sample 以便校 comparison relatively already positive rear sample is improvement. 四, important 事项妥善保存 has in mold trial process in sample 检验 记录, processing cycle various pressure, and injection molding parts mold temperature degree, material tube/pipe temperature degree, injection shot as time, screw add material and other, 简言之, 应保存 has will has can 藉以顺利建立 same processing conditions data, obtain combined quality standards product. currently injection molding parts processing mold trial 时往往忽略 injection molding parts mold temperature degree, in short mold trial and will amount injection molding parts mold temperature degree most easy 掌握, positive mold temperature effect/influence sample dimensions, light degree, sink marks, and material and other phenomenon, use mold temperature control device 予以当握 will amount 产时就 can can 出现困 difficult.