科学注塑(参数优化)

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设定背压: 100（黑色材料）~150 bar （透明材料）
Set the decompression: 12-14% of screw diameter.
设定防涎行程为螺杆直径的12~14%
Set the injection speed: 75% of maximum. 设定注射速度为最大值的75% Limit the injection pressure: 50% of maximum.注射压力限度为最大值50% Set the holding pressure: 1 bar. (Not 0) 设定保压压力: 1bar(不是0bar) Set the holding pressure time: 0,2s. (Not 0) 设定保压时间: 0.2s(不是0bar) Set the cooling time: 5s / wall thickness mm. 设定冷却时间: 5s/mm壁厚
检查所有的参数是否合适，同时在啤机的监视视窗中看制程是否稳定
Start PROCESS STABILITY TESTING if No major defect on molded parts and the main dimension is correct 如胶件没有大的缺陷，则开始做 <稳定性测试>， 同时取足够的胶件用于测度及其它 Especially remind to save 2 good short shot samples with a"switch over point" and 2 shots runner 保存二啤95%左右的“走水板”及二啤流道 Fill the "Trial Comments"-form. 填写“试模报告”
Increase mass and fixed mould temperature if injection pressure is too high.
如注射压力过高，提高熔体温度和定模的温度 Find the switch over point 找到合适的切换点 Make the injection speed test 进行注射速度试验(粘度测试) Find the switch over point. 找到合适的切换点 Filling balance analysis(流道平衡测试) 如超出PCM内部标准15%，则终止优化
Increase the first steps of holding pressure until there are no sink marks in the last filling area of the part.
增加首（几）段保压压力直到产品最后填充的部位没有缩水痕
Increase the middle steps of holding pressure if there are sink marks between the gates and the last filling area. 如果在浇口和最后填充部位之间的地方有缩水痕，增加中间段的保压压力 Make the holding pressure time test.进行保压时间试验(封口测试) Optimize the clamping force(at first, suggest seting from the nominal + 10%). 优化锁模力(建议先设定为理论估算值+10%, 然后再根据实际情况进行调整) Set the moving speeds: 100%. 设定模具开合速度（100%） Find the shortest possible cooling time 找到最短的冷却时间 Increase the plastisizing speed and the decompression speed if it is needed. 如果有需要，增加塑化速度和防涎行程 Check the switch over point.检查切换点 Measure the main dimensions of the parts for reference. 测量产品重要尺寸 Fill the "Optimized Parameters"-form.填写“优化参数”表 Check all parameters and monitor the process stability in the monitoring window of press.
Documentation 文件
型参数
优化参数
参考粘度测试表 参考流道平衡测试表பைடு நூலகம்
参考封口测试表
填在<优化的成型参数>表中
填在<稳定性测试>表中
Check the zero point of mould. 检查合模零点 Start semi-automatic. 以半自动模式运行 Increase injection pressure limit to 100% if the mould works well.
如模具运作正常，提升注射压力限度至100%
Set the switch over point (example 10mm). 设定切换点 （例如：10mm） Set the plastisizing stroke 设定塑化行程 Set the clamping force to a high enough level.设定锁模力到足够高 Start to find out the optimized parameters 开始寻找优化参数
Set the holding pressure time: Calculated value + 1s.
设定保压时间 = 计算值 + 1s
Increase holding pressure until there are no sink marks near the gates.
增加保压压力直至产品靠近水口的表面没有缩水痕
Preset injection moulding parameters 初步设定成型参数
Set the recommended mass temperature into the barrel.按推荐值设定炮筒温度 In the rear zone 15 degrees less. 炮筒后段要低15度 Set the recommended mass temperature into the hot runner. 按推荐值设定热流到温度 In the gate pins 15 degrees more. 浇口温度应升高15度 Set the recommended screw surface speed 设定塑化速度（螺杆表面速度） Set the back pressure: 100 bar (”black” materials) – 150 bar (”window” materials). Only 10 bar for POM
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34. 35. 36. 37. 38 39 40
工艺优化流程
Actions 行动步骤 General 一般要求
Check the cleanness of the mould. 检查模具清洁状况 Check the dryness of the raw material. 检查原料干燥情况 Find out the right mould temperature. 确定正确的模具温度 Amorphous (PC, ABS, PMMA): select the lowest recommended temperature 非结晶材料（PC, ABS, PMMA）: 推荐温度最低值 Crystalline (PA, POM): select temperature in the middle of recommended area 结晶型材料（PA, POM）: 推荐温度范围中值 Fill out the "Water Circuit"- form 找到并核对“模具运水线图”
工艺优化流程
Step General 一般要求 1. 2. 3.
4. Preset injection moulding parameters 初步设定成型参数 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Start to find out the optimized parameters 开始寻找优化参数 18. 19. 20. 21. 22. 23. 24. 25 26 27