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about/regarding thin wall high speed injection molding outlook/prospects
Date: 2019-11-20 09:49
Views: 2294
Source: Internet
plastics raw materials cost usually products cost 50-80%, this ratio/proportion versus 当惊人. thin manufacturing has reduce this ratio/proportion. especially is property box/case, medical use product, electronics product and other has day commonly used parts design 便越 越 thin. thin 壁化因 tool has decrease small product weight and outer dimensions, 便于集 formed design and assembly, shrink short production cycle, 节约材 material and reduce cost and other advantages formed is plastics industry target/goal, already formed is plastics molding industry in new research hot 点之一.
effect/influence thin parts factors
thin parts is thick comparison thin parts is thin parts, industrial upper thick small 于1mm时 工 parts is thin parts.
本文 main/primary discussion is injection molding thin parts. in injection molding process in, thin 壁 定义 and is process/workflow /壁 thick ratio, plastics viscosity and hot 系数均 has 关系. from mold runner to formed product most 远一点 距离称之 is process/workflow （ use L table/sheet 示）, remove formed product thick （ use t table/sheet 示）, is process/workflow /壁 thick ratio. 当L/t＞150时, is thin 壁. process/workflow thick thin 不一致, can separation 段计算 process/workflow /壁 thick ratio. polypropylene (PP) （PP） viscosity is 1. one-time property box/case process/workflow 135mm, thick 0.45mm, process/workflow /壁 thick ratio =300. polycarbonate (PC) （PC） viscosity is 2. machine battery outer housing/shell process/workflow 38mm, t=0.25mm, process/workflow /壁 thick ratio =152. therefore, plastics viscosity is effect/influence parts formed product key/critical.
thin product and injection molding machine 关系
thin injection molding filling time very short, very more filling time 不足0.5秒, in this short time can can speed degree or pressure, therefore must use high analysis degree micro device control injection molding machine; in thin products injection molding process in, meanwhile 各自独立 control pressure and speed degree, injection molding machine stage/phase use speed degree control, holding pressure stage/phase again is pressure control methods already suitable.
high speed injection molding machine is main/primary is for cycle requirements comparison high and product thick requirements comparison thin product, similar mono time output/production volume comparison large, product structure simple, can has reduce product cost, most 熟悉 就 is one-time property thin box/case, one-time property and other product. currently upper relatively good high speed injection molding machine has Taiwan in machine company VS-100 thin injection molding machine, Germany Dr．Boy company development Boy type series injection molding machine, 德库玛 high speed machine, 威猛巴顿菲尔（WITTMANN BATTENFELD), 阿博格（ARBURG）, Japan made 钢JSW and force and other injection molding machine production development specialized injection molding machine.
high speed injection molding for mold requirements
and products standards mold versus ratio, thin products mold from mold structure, system, cooling system, gas system and demolding system and other 都发生 heavy large 变化. main/primary performance in below/following several 方面: a, mold structure: is molding high pressure, thin molding mold rigid degree need large, strong/high degree need high. therefore mold need using/adopting relatively high hardness tool 钢, high abrasion loss, high 冲蚀区（如 gate 处） hardness large 于HRC55. b, system: molding thin products, especially is products thick degree non small 时, need use large gate, but also gate large thick. is thin products mold system in also 引入 两项先进 technology, hot runner technology and 顺序阀式 gate （SVG） technology. c, cooling system: thin products 不像传统壁 thick parts that can relatively large hot 不均而 generate residual stress. is ensure products dimensional stability, shrinkage and warpage control in can scope/range inner, must add strong/high mold cooling, ensure cooling 均衡. d, gas system: thin injection molding mold generally need has good gas property, most good can 进行抽 true as. due to filling time short, injection molding speed degree high, mold separation gas especially is flow front poly 集区 充 separation gas non important, anti gas 引燃. e, demolding system: is thin products and very thin, non easy loss bad, but also thick degree direction shrinkage very small, make add strong/high and other small structure very easy bonding, meanwhile high holding pressure pressure make shrinkage more small.
thin parts material requirements and combined control cooling time
thin high speed injection molding material must tool below/following features: flow property good; impact resistant strong/high degree high; heat deflection temperature (HDT) high; dimensional stability good; material heat resistant property high; flame retardant property good; machine assembly property relatively high; appearance quality 效果佳 and other.
currently, thin injection molding commonly used material has polycarbonate (PC) （PC）, acrylonitrile — butadiene — styrene （ABS） and PC/ABS blending material and other, thin injection molding combined material must has relatively high flow property, Raw Materials flow property good, can from equipment upper 进行改进, add high material temperature, high speed high pressure, use temperature machine or hot runner improve/increase Raw Materials flow property, to production combined product 目.
cooling time injection molding cycle 80%, assessment parts cooling time can assessment parts molding cycle, cooling time raw materials, product thick, injection shot temperature degree, mold temperature and other has 关.
high speed injection molding technology development and application
随 polymer/macromolecule material and manufacturing 业 迅 speed development, engineering plastics in precision device, electronics table/sheet, products, medical devices, device and optical sheet/slice and other field/area application 广泛. this category of plastics products large more small, quality small, outer complex or ultra- thin 壁, its dimensions degree, 形位误差, quality stability property, table/sheet quality and other parameters requirements relatively high. high speed injection molding already in 必行.
currently, high speed injection molding technology 按驱动 methods separation main/primary has full liquid pressure high speed machine, full electrical high speed machine and electrical liquid composite/compounding high speed machine. high speed injection molding technology is full liquid pressure 式, its in molding precision, complex products has many advantages, its control technology difficult degree large, machine processing degree high, liquid pressure technology degree control difficult 掌握. due to electrical machine formed application and price large degree decline, and environmental protection and energy saving need, in recent years full electrical high speed injection molding technology 越 越 more, its in environmental protection and energy saving has advantages, in use lifespan upper full liquid pressure injection molding machine, and cost high. therefore development electrical liquid composite/compounding high speed machine in 必行, it is liquid pressure and electrical 驱动于一体 new type injection molding machine, melt combined full liquid pressure injection molding machine in molding precision, complex products advantages and full electrical 动式定位精准 and can 源, small advantages, and cost low full electrical injection molding machine. high speed injection molding technology development and application for improves inner injection molding machine technology water 准, especially is precision series injection molding machine design development water and tool has large promote function, for 推进国 inner machine industry development and competition force improve/increase tool has heavy large 意义.
high speed injection molding main applications in below/following several 方面: PP, PE, PS various thin type products, one-time property box/case, aviation 杯, IML box/case 子; high output/production volume product, injection device and other and precision industrial parts and other, type product belongs to consumption product, market relatively large, but also type product easy recycling, can classification made as other product, ring utilizing, for ring formed 污染, market outlook/prospects 广泛.
effect/influence thin parts factors
thin parts is thick comparison thin parts is thin parts, industrial upper thick small 于1mm时 工 parts is thin parts.
本文 main/primary discussion is injection molding thin parts. in injection molding process in, thin 壁 定义 and is process/workflow /壁 thick ratio, plastics viscosity and hot 系数均 has 关系. from mold runner to formed product most 远一点 距离称之 is process/workflow （ use L table/sheet 示）, remove formed product thick （ use t table/sheet 示）, is process/workflow /壁 thick ratio. 当L/t＞150时, is thin 壁. process/workflow thick thin 不一致, can separation 段计算 process/workflow /壁 thick ratio. polypropylene (PP) （PP） viscosity is 1. one-time property box/case process/workflow 135mm, thick 0.45mm, process/workflow /壁 thick ratio =300. polycarbonate (PC) （PC） viscosity is 2. machine battery outer housing/shell process/workflow 38mm, t=0.25mm, process/workflow /壁 thick ratio =152. therefore, plastics viscosity is effect/influence parts formed product key/critical.
thin product and injection molding machine 关系
thin injection molding filling time very short, very more filling time 不足0.5秒, in this short time can can speed degree or pressure, therefore must use high analysis degree micro device control injection molding machine; in thin products injection molding process in, meanwhile 各自独立 control pressure and speed degree, injection molding machine stage/phase use speed degree control, holding pressure stage/phase again is pressure control methods already suitable.
high speed injection molding machine is main/primary is for cycle requirements comparison high and product thick requirements comparison thin product, similar mono time output/production volume comparison large, product structure simple, can has reduce product cost, most 熟悉 就 is one-time property thin box/case, one-time property and other product. currently upper relatively good high speed injection molding machine has Taiwan in machine company VS-100 thin injection molding machine, Germany Dr．Boy company development Boy type series injection molding machine, 德库玛 high speed machine, 威猛巴顿菲尔（WITTMANN BATTENFELD), 阿博格（ARBURG）, Japan made 钢JSW and force and other injection molding machine production development specialized injection molding machine.
high speed injection molding for mold requirements
and products standards mold versus ratio, thin products mold from mold structure, system, cooling system, gas system and demolding system and other 都发生 heavy large 变化. main/primary performance in below/following several 方面: a, mold structure: is molding high pressure, thin molding mold rigid degree need large, strong/high degree need high. therefore mold need using/adopting relatively high hardness tool 钢, high abrasion loss, high 冲蚀区（如 gate 处） hardness large 于HRC55. b, system: molding thin products, especially is products thick degree non small 时, need use large gate, but also gate large thick. is thin products mold system in also 引入 两项先进 technology, hot runner technology and 顺序阀式 gate （SVG） technology. c, cooling system: thin products 不像传统壁 thick parts that can relatively large hot 不均而 generate residual stress. is ensure products dimensional stability, shrinkage and warpage control in can scope/range inner, must add strong/high mold cooling, ensure cooling 均衡. d, gas system: thin injection molding mold generally need has good gas property, most good can 进行抽 true as. due to filling time short, injection molding speed degree high, mold separation gas especially is flow front poly 集区 充 separation gas non important, anti gas 引燃. e, demolding system: is thin products and very thin, non easy loss bad, but also thick degree direction shrinkage very small, make add strong/high and other small structure very easy bonding, meanwhile high holding pressure pressure make shrinkage more small.
thin parts material requirements and combined control cooling time
thin high speed injection molding material must tool below/following features: flow property good; impact resistant strong/high degree high; heat deflection temperature (HDT) high; dimensional stability good; material heat resistant property high; flame retardant property good; machine assembly property relatively high; appearance quality 效果佳 and other.
currently, thin injection molding commonly used material has polycarbonate (PC) （PC）, acrylonitrile — butadiene — styrene （ABS） and PC/ABS blending material and other, thin injection molding combined material must has relatively high flow property, Raw Materials flow property good, can from equipment upper 进行改进, add high material temperature, high speed high pressure, use temperature machine or hot runner improve/increase Raw Materials flow property, to production combined product 目.
cooling time injection molding cycle 80%, assessment parts cooling time can assessment parts molding cycle, cooling time raw materials, product thick, injection shot temperature degree, mold temperature and other has 关.
high speed injection molding technology development and application
随 polymer/macromolecule material and manufacturing 业 迅 speed development, engineering plastics in precision device, electronics table/sheet, products, medical devices, device and optical sheet/slice and other field/area application 广泛. this category of plastics products large more small, quality small, outer complex or ultra- thin 壁, its dimensions degree, 形位误差, quality stability property, table/sheet quality and other parameters requirements relatively high. high speed injection molding already in 必行.
currently, high speed injection molding technology 按驱动 methods separation main/primary has full liquid pressure high speed machine, full electrical high speed machine and electrical liquid composite/compounding high speed machine. high speed injection molding technology is full liquid pressure 式, its in molding precision, complex products has many advantages, its control technology difficult degree large, machine processing degree high, liquid pressure technology degree control difficult 掌握. due to electrical machine formed application and price large degree decline, and environmental protection and energy saving need, in recent years full electrical high speed injection molding technology 越 越 more, its in environmental protection and energy saving has advantages, in use lifespan upper full liquid pressure injection molding machine, and cost high. therefore development electrical liquid composite/compounding high speed machine in 必行, it is liquid pressure and electrical 驱动于一体 new type injection molding machine, melt combined full liquid pressure injection molding machine in molding precision, complex products advantages and full electrical 动式定位精准 and can 源, small advantages, and cost low full electrical injection molding machine. high speed injection molding technology development and application for improves inner injection molding machine technology water 准, especially is precision series injection molding machine design development water and tool has large promote function, for 推进国 inner machine industry development and competition force improve/increase tool has heavy large 意义.
high speed injection molding main applications in below/following several 方面: PP, PE, PS various thin type products, one-time property box/case, aviation 杯, IML box/case 子; high output/production volume product, injection device and other and precision industrial parts and other, type product belongs to consumption product, market relatively large, but also type product easy recycling, can classification made as other product, ring utilizing, for ring formed 污染, market outlook/prospects 广泛.
