Shanghai Daoqin Plastics Co., Ltd.

hot runner system is more type injection molding key/critical parts. versus 反, from mold manufacturing 商 观点 看, hot runner is understanding most less mold parts. upper, hot runner system is very complex, machine function, add hot technology and precision manufacturing and other 各 方面 inner 容. hot runner system in injection molding ring in formed application requirements for 注入口 design 形式, type 腔几何形状, resin and mold 工人 进行 detailed analysis.

in most application analysis process in, for lower issues evaluation:

• this parts can using/adopting injection molding 吗?

• injection molding machine pressure will this parts injection molding 吗?

• 整 sleeve/set injection molding process is can 靠?

hot runner system application analysis

application analysis and to main/primary steps 包括: machine engineering analysis, resin testing and hot runner concept design.

1, machine engineering （CAE） analysis

计算 machine engineering analysis tool 包括MoldFlowTM analysis soft parts and other, can used for analysis mold system in melt plastics flow 情况. this 程序常常 by mold design used for forecast parts pressure, flow 线路, gas 孔, shrinkage rate and warpage degree.

尽 can can in most stage/phase will machine analysis application to mold production project upper. make is grade stage/phase as coarse shallow analysis has can can solution important issues, injection molding can can property, production cycle time, for pressure requirements and for flow forecast.

借助于计算 machine engineering design soft parts, can very easy for different 场景进行 heavy 复模拟演示, this has reduce production cost and experiment/testing time.

will flow type used for parts analysis is non 常普遍 做 method, in analysis process in add hot runner tube/pipe method is most 近才出现. will tube/pipe liquid 通道 几何形状 made formed type will has more forecast. but also, need balanced multiple dimensions type mold 时, this soft parts will is non has use.

2, resin experiment/testing

resin experiment/testing used for evaluation types 按一定 formed separation resin processing properties. resin experiment/testing can in application areas in 进行, this category of resin has very short separation hot runner or 者根本没 has 经 处理.

design resin experiment/testing is is evaluation resin and formed separation combined process 窗口. experiment/testing basic steps lower:

1. evaluation injection speed degree and versus pressure, is experiment/testing most 佳 注入 time;

2. 建立 hot runner system temperature degree 窗口, has production combined requirements parts;

3. 以实验 形式改变 maintain time and pressure, use most dimensions and most 佳 注入口 quality parts production need 基线;

4. evaluation resin for time degree;

5. optimization mold parameters, evaluation application cycle.

remove standards experiment/testing 程序以 outer, also can 进行专门 experiment/testing, evaluation processing parameters or requirements.

in formed mold design front, through resin experiment/testing can let obtain most mold experiment/testing front 需 实际 process data, rear provide pressure parts sample.

3, hot runner system design concept

另一 important steps is hot runner design concept. detailed design concept, 包括歧 tube/pipe and pressure sheet/plate, it will formed is mold in important separation.

hot runner is types complex tool has excellent property mold parts. in mold production project in, CAE计算 machine engineering analysis, resin experiment/testing and design concept and other, can hot runner system 供货商 完 formed. in project 初期, if let hot runner 供货商共同参 and as, that mold design 人员就 can 够进一步 optimization most product.

歧 tube/pipe used for ensure let liquid can most has methods 进行布置. in 理想 情况 lower, liquid using/adopting for methods design, has lower runner flow long degree and 转弯数 amount is 一致.

in using/adopting more type mold or non for mold lower, liquid can can 包括人造 long degree and 转弯点, can 够适当 balanced this system. this type of concept for mold design and hot runner design 人员均 has 帮助, can ensure most 佳 岐 tube/pipe design.

in addition, also need using/adopting pressure sheet/plate technology, ensure can design 出客户 requirements combined high degree and key/critical features. due to in nozzle in hot runner nozzle, mold design also need 确认注入口 接近处 and cooling is can meet/satisfy hot runner manufacturing requirements.

for hot runner system evaluation main/primary factors 包括: amount balanced and tube/pipe hot distribution 情况; dimensions; high pressure application areas in pipe/tube material strong/high degree; 注入口 dimensions; cooling and 注入口 接近; can 够承受研 abrasion property and property resin formed separation.