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automotive parts field/area injection molding process application and 实践
Date: 2019-11-20 09:49
Views: 2263
Source: Internet
due to automotive complex parts plastics parts has and different property, therefore its injection molding in design upper need separation to lower factors, material drying 处理, glass fiber reinforced material for screw new requirements, 驱动形式 and clamping structure and other.
首先, 当 automotive 保险杠, table/sheet sheet/plate and other commonly used resin material is modified PP and modified ABS and other modified resin 时, resin material has different wet property, is meet/satisfy molding water content requirements (generally requirements ≤0.2%), resin raw materials in injection molding machine screw 预塑计 amount front, need hot drying or remove wet drying 处理.
modified PP(PP EPDM) resin wet property relatively small, generally using/adopting hot drying machine in 80-100℃ conditions lower 2-3h即 can. modified ABS(PC ABS) wet property relatively strong/high, in molding drying front, application remove wet drying machine remove wet drying 处理. in design automotive complex plastics parts molding system upper separation remove wet drying system function use.
第二, currently inner automotive use plastics parts basic upper is glass fiber reinforcement plastics products, and use has short glass fiber reinforcement resin versus ratio, molding glass fiber reinforcement plastics parts use injection molding machine screw and structure has relatively large different. injection molding machine in design 时, need attention/notes screw material alloy and hot processing process, ensure it resistant property and strong/high degree.
第三, due to automotive parts and product different, it type 腔面十 separation complex, force and other, force distribution 不均, in design in focus/key point it processing can force. injection molding machine processing can force in clamping force and injection molding can force (以 most large injection table/sheet 示)两方面. injection molding machine in molding products 时, clamping force must large mold type pressure generate mold opening force, mold separation type will separation formed generate material.
确定 injection molding machine clamping force 公式如 lower: P clamping ≥P type 腔×F/100. in: P clamping is injection molding machine clamping force (or clamping force)KN
type is mold cavity pressure, MPa, and products structure 形状, degree requirements and type and other has 关, value scope/range generally in 25-40MPa between;F is mold type 腔, and material water heavy 叠投影面积CM3.
is ensure can 靠 锁模, injection molding process clamping force must small injection molding machine clamping force. injection molding machine most large injection and injection molding machine clamping force versus 匹配, is injection molding machine in front polystyrene (PS) (PS) is resin 标称出 injection amount.
第四, according to automotive complex plastics parts features for injection molding machine 驱动形式 and clamping machine design, inner currently use relatively more is liquid pressure machine or full liquid pressure liquid pressure 曲肘, or is in 心部直 pressure clamping machine injection molding machine. machine corporation has company more year force, breakthrough 传统约束, R&D sheet/plate clamping pressure, composite/compounding 锁模形式 machine structure.
this type of structure excellent property in it mold opening 行程远远 large liquid pressure clamping structure, less in 2倍 above, meet/satisfy automotive large type parts (如保险杠, table/sheet sheet/plate and other) production demand. its 次, using/adopting 4 composite/compounding 油缸同步锁住, use small amount achieve large 吨位 平稳锁模, clamping force can high 于同吨位 liquid pressure clamping structure. for automotive large type complex plastics parts molding composite/compounding degree to separation ensure.
第五, due to automotive parts type 腔面十 separation complex, injection molding machine in design need its property, 配置一 特殊 function 程序: more 组抽芯 function, control function, injection molding machine sleeve/set plant/unit function, sleeve/set parts machine plant/unit function and other. this function in production automotive plastics parts in advantages separation obvious. 例如, use this type of machine type injection molding machine in 保险杠 production process in, is shrink short production cycle, through parts machine 械手自动取出 mold mold opening ejection rear large type plastics products parts, more 组抽芯 make large type plastics products overall ejection, generate or cracking phenomenon. currently in this injection molding system in use more is 3轴取 parts machine 械手, use 6轴取 parts machine 械手.
车 use plastics parts advantages, automotive complex plastics parts advantages:
1, plastics can one-time processing molding, processing time short, degree has ensure.
2, plastics products elastic property deformation features can absorption a large amount of can amount, for strong/high 烈撞击 has relatively large function, for and 乘员起 to function. automotive upper using/adopting 塑化仪 table/sheet sheet/plate and direction 盘, reinforcement function. front rear 保险杠, decoration strip/profile using/adopting plastics material, decrease light outer material for impact force. plastics also tool has absorption and decrease and function, can improve/increase 乘坐 舒适 property.
3, plastics corrosion resistant property strong/high, local loss 不会腐蚀.
4, through add different filler, increase agent and hard agent made 出 需 property can plastics, 以适应车 upper different parts applications requirements. more is plastics color can through additives different color, 省 喷漆 麻烦. has plastics parts also can electroplating.
另一方面, automotive complex parts injection molding parts appearance and dimensions requirements improve/increase automotive injection molding parts development and 风险. Moldflow三维 soft parts enterprise in product design stage/phase analysis parts molding can property, through for product deformation and molding process analysis, assessment optimization product design, meanwhile lower 游厂商 mold and injection molding optimization.
首先, 当 automotive 保险杠, table/sheet sheet/plate and other commonly used resin material is modified PP and modified ABS and other modified resin 时, resin material has different wet property, is meet/satisfy molding water content requirements (generally requirements ≤0.2%), resin raw materials in injection molding machine screw 预塑计 amount front, need hot drying or remove wet drying 处理.
modified PP(PP EPDM) resin wet property relatively small, generally using/adopting hot drying machine in 80-100℃ conditions lower 2-3h即 can. modified ABS(PC ABS) wet property relatively strong/high, in molding drying front, application remove wet drying machine remove wet drying 处理. in design automotive complex plastics parts molding system upper separation remove wet drying system function use.
第二, currently inner automotive use plastics parts basic upper is glass fiber reinforcement plastics products, and use has short glass fiber reinforcement resin versus ratio, molding glass fiber reinforcement plastics parts use injection molding machine screw and structure has relatively large different. injection molding machine in design 时, need attention/notes screw material alloy and hot processing process, ensure it resistant property and strong/high degree.
第三, due to automotive parts and product different, it type 腔面十 separation complex, force and other, force distribution 不均, in design in focus/key point it processing can force. injection molding machine processing can force in clamping force and injection molding can force (以 most large injection table/sheet 示)两方面. injection molding machine in molding products 时, clamping force must large mold type pressure generate mold opening force, mold separation type will separation formed generate material.
确定 injection molding machine clamping force 公式如 lower: P clamping ≥P type 腔×F/100. in: P clamping is injection molding machine clamping force (or clamping force)KN
type is mold cavity pressure, MPa, and products structure 形状, degree requirements and type and other has 关, value scope/range generally in 25-40MPa between;F is mold type 腔, and material water heavy 叠投影面积CM3. is ensure can 靠 锁模, injection molding process clamping force must small injection molding machine clamping force. injection molding machine most large injection and injection molding machine clamping force versus 匹配, is injection molding machine in front polystyrene (PS) (PS) is resin 标称出 injection amount.
第四, according to automotive complex plastics parts features for injection molding machine 驱动形式 and clamping machine design, inner currently use relatively more is liquid pressure machine or full liquid pressure liquid pressure 曲肘, or is in 心部直 pressure clamping machine injection molding machine. machine corporation has company more year force, breakthrough 传统约束, R&D sheet/plate clamping pressure, composite/compounding 锁模形式 machine structure.
this type of structure excellent property in it mold opening 行程远远 large liquid pressure clamping structure, less in 2倍 above, meet/satisfy automotive large type parts (如保险杠, table/sheet sheet/plate and other) production demand. its 次, using/adopting 4 composite/compounding 油缸同步锁住, use small amount achieve large 吨位 平稳锁模, clamping force can high 于同吨位 liquid pressure clamping structure. for automotive large type complex plastics parts molding composite/compounding degree to separation ensure.
第五, due to automotive parts type 腔面十 separation complex, injection molding machine in design need its property, 配置一 特殊 function 程序: more 组抽芯 function, control function, injection molding machine sleeve/set plant/unit function, sleeve/set parts machine plant/unit function and other. this function in production automotive plastics parts in advantages separation obvious. 例如, use this type of machine type injection molding machine in 保险杠 production process in, is shrink short production cycle, through parts machine 械手自动取出 mold mold opening ejection rear large type plastics products parts, more 组抽芯 make large type plastics products overall ejection, generate or cracking phenomenon. currently in this injection molding system in use more is 3轴取 parts machine 械手, use 6轴取 parts machine 械手.
车 use plastics parts advantages, automotive complex plastics parts advantages:
1, plastics can one-time processing molding, processing time short, degree has ensure.
2, plastics products elastic property deformation features can absorption a large amount of can amount, for strong/high 烈撞击 has relatively large function, for and 乘员起 to function. automotive upper using/adopting 塑化仪 table/sheet sheet/plate and direction 盘, reinforcement function. front rear 保险杠, decoration strip/profile using/adopting plastics material, decrease light outer material for impact force. plastics also tool has absorption and decrease and function, can improve/increase 乘坐 舒适 property.
3, plastics corrosion resistant property strong/high, local loss 不会腐蚀.
4, through add different filler, increase agent and hard agent made 出 需 property can plastics, 以适应车 upper different parts applications requirements. more is plastics color can through additives different color, 省 喷漆 麻烦. has plastics parts also can electroplating.
另一方面, automotive complex parts injection molding parts appearance and dimensions requirements improve/increase automotive injection molding parts development and 风险. Moldflow三维 soft parts enterprise in product design stage/phase analysis parts molding can property, through for product deformation and molding process analysis, assessment optimization product design, meanwhile lower 游厂商 mold and injection molding optimization.
