Shanghai Daoqin Plastics Co., Ltd.

metal injection formed technology 由陶瓷 parts powder injection formed technology development 而, is types new type powder 末冶金近净 formed technology. metal injection formed technology technology main/primary production steps lower: metal powder and adhesion agent mixed combined —— made 粒—— injection formed 形——脱脂——烧结—— rear 续处理—— most product technology suitable for large amount production property can high, complex small dimensions powder 末冶金零部 parts, Switzerland table/sheet use production table/sheet parts. 近几十 year, mim technology development 势头迅猛, can application material system 包括: fe-ni alloy, 不锈钢, tool 钢, high specific gravity alloy, hard alloy, titanium alloy, ultra- alloy, metal combined material, oxidation aluminum, oxidation and other. metal injection formed technology requirements powder degree is micron grade below/following, 形状近球形. in addition for powder 末 松装 density, density, powder long ratio, 自然坡 degree 角, degree distribution has requirements. currently production metal injection formed technology use powder main/primary methods has: water method, gas 体雾化 method, method. commonly used 不锈钢 metal injection use powder grade has: 304l, 316l, 317l, 410l, 430l, 434l, 440a, 440c, 17-4ph and other. for/regarding water method its made as process/workflow is: selection 不锈钢 raw materials —— in frequency 感应炉 inner 熔化—— formed adjustment ——脱 oxygen remove 渣——雾化 made powder —— quality testing ——筛 separation —— packaging main/primary use to equipment has: in frequency 感应熔炉, high pressure water 泵, full 封闭式 made powder plant/unit, ring water water 池, separation and packaging equipment, testing device and other. for/regarding gas method its made as process/workflow is: selection 不锈钢 raw materials —— in frequency 感应炉 inner 熔化—— formed adjustment ——脱 oxygen remove 渣——雾化 made powder —— quality testing ——筛 separation —— packaging main/primary use to equipment has: in frequency 感应熔炉, nitrogen gas and plant/unit, ring water water 池, separation and packaging equipment, testing device and other. types methods has its excellent disadvantages: water method is main/primary made powder process, its efficiency high, large production comparison 经济, can make powder fine micro 化, 但形状不规则, this has 利于保形, use adhesion agent relatively more, effect/influence degree. in addition, water and metal high temperature reaction formed oxidation film 妨碍烧结. gas 体雾化 method is production metal injection formed technology use powder main/primary methods, it production powder is 球形, oxidation degree low, adhesion agent less, formed property good, fine powder rate low, price high, property 差, adhesion agent in c, n, h, o for 烧结体 has effect/influence. method production powder pure degree high, stability, degree fine, it most combined mim, 但仅限于fe,ni and other powder 体, can meet/satisfy product types requirements. is meet/satisfy metal injection formed technology use powder requirements, many made powder company for upper methods 进行 改进, also development micro 雾化, 层流雾化 and other made powder methods. in usually is water powder and gas powder mixed combined use, front improve/increase density rear 者维持保形 property. currently using/adopting water powder can production versus for density large 于99% 烧结体, therefore relatively large type parts use water powder, relatively small type parts use gas powder.