Five Gallon High Speed Core Cap Re-design of Polymer Injection Mold

五加仑高速芯盖聚合物注射模具的重新设计

• 批准号: 511848-2017
• 负责人: Riahi, Reza
• 金额: $ 1.82万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639961
• 关键词: Five; Gallon; Speed; Core; Cap

Calframax Technologies Inc. is a plastic injection mold manufacturer with customers located mostly in NorthAmerica. The typical cycle time to process a 5-gallon pail has been 18 to 19 seconds. Calframax undertook toresearch and develop a mold that could produce parts at a significantly shorter process time of 13.5 to 14.5seconds. This increase in efficiency allows the customers to increase their production rate by 30%. Because ofthe increased efficiency of the new mold design, many of the Calframax customers replaced their molds withthe new design. The mold has now been in circulation for approximately 3 years, however, several ofcustomers are experiencing quality problems with the new design. The problems include corrosion on themating surface between the core and core cap, corrosion and breakage of the screws, and hobbing of the core.Initial investigations indicate that the core cap is also flexing under injection pressure. Therefore, in thisresearch the corrosion resistance of the problematic parts in a standard coolant as well as stress corrosioncracking, fatigue corrosion, and galvanic reaction of the components in the same coolant will be investigated.Then based on the results of the experiments, materials or coatings at reasonable cost with minimum corrosionrate and galvanic potential will be selected. Then a proper corrosion inhibitor for the coolant will be suggestedto minimize the corrosion damage to the parts. This project will generate important new knowledge on thematerials behavior and design considerations of the polymer injection molds. This type of knowledge is criticalto Calframax for improvement of their new mold products. The results of this project may lead to the designand introduction of a range of new mold products within a time span of 3 to 5 years and increase theprofitability of Calframax.

Calframax Technologies Inc. 是一家塑料注塑模具制造商，客户主要位于北美。处理 5 加仑桶的典型周期时间为 18 至 19 秒。 Calframax致力于研究和开发一种模具，可以在13.5至14.5秒的显着缩短的加工时间下生产零件。效率的提高使客户的生产率提高了 30%。由于新模具设计的效率提高，许多 Calframax 客户都用新设计更换了模具。该模具现已流通约 3 年，然而，一些客户在新设计中遇到了质量问题。问题包括型芯和型芯盖之间配合表面的腐蚀、螺钉的腐蚀和断裂以及型芯的滚齿。初步调查表明型芯盖在注射压力下也会弯曲。因此，本研究将研究问题零件在标准冷却液中的耐腐蚀性，以及部件在同一冷却液中的应力腐蚀裂纹、疲劳腐蚀和电偶反应。然后根据实验结果，选择成本合理、腐蚀率和电偶电位最小的材料或涂层。然后建议使用适当的冷却液腐蚀抑制剂，以尽量减少对零件的腐蚀损坏。该项目将产生有关聚合物注塑模具的材料行为和设计考虑因素的重要新知识。此类知识对于 Calframax 改进其新模具产品至关重要。该项目的成果可能会在3至5年内设计和推出一系列新模具产品，并提高Calframax的盈利能力。