注塑零件的弯曲与模具温度差异的结果
注塑零件的弯曲与模具温度差异的结果(中文3000字,英文2200字)
摘要
目的:这项研究的目的是探索后翘曲现象影响部分由相对不同的注塑模温度产生的。
设计/方法/方法:样本被注入模具并弯曲了。然后使用光学显微镜观察测量挠度和材料结构。
结果:发现不同的模具壁温值导致横截面不对称聚合物流动。经由短镜头观察发现，结果显示是在不对称结构部分的横截面发生。
研究局限性/意义:在未来的研究工作的部分建议。这可能是由光弹透明聚合物部分导致如PS,ABS或PC。
实际意义: 当注塑零件生产应保证整个腔体均匀模壁温度。
创意/价值:这是一个不止关注单一测试的联合研究的例子,有助于发现聚合物在制造业的部分质量问题的原因。
关键词:工程聚合物;注塑;弯曲
Warpage of injection moulded parts as the result of mould temperature difference
ABSTRACT
Purpose: The purpose of the research was to explore what phenomena influence parts warpage after injection moulding by different mould temperature at the opposite walls.
Design/methodology/approach: The sample bars were injected into the injection mould and the warpage was observed. The deflection was measured and material structure was observed using optical microscope.
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Findings: It was found that the different mould wall temperature values cause the asymmetrical polymer flow in the cross-section. It was discovered by short shots observation. As result the asymmetrical structure in the parts’ cross-section occurs.
Research limitations/implications: In the future work the research of stress in the parts is recommended. This could be done by elastooptical investigation of transparent parts made from polymers like PS, ABS or PC.
Practical implications: It is required to assure homogeneous mould wall temperature across the entire cavity when injection moulding parts production is made.
Originality/value: This is an example of combined research that is not focused on one kind of tests only and helps to find reasons of the quality problem in polymer parts manufacturing.
Keywords: Engineering polymers; Injection moulding; Warpage
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