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。处理一个5加仑的桶的典型周期时间是18到19秒。Calframax致力于研究和开发一种模具，该模具可以在13.5至14.5秒的显著更短的加工时间内生产零件。这种效率的提高使客户的生产率提高了30%。由于新的模具设计提高了效率，许多Calframax的客户用新的设计更换了他们的模具。该模具现已在流通约3年，然而，一些客户遇到的质量问题与新的设计。这些问题包括芯与芯帽之间的接合面腐蚀、螺杆腐蚀和断裂以及芯的滚齿。初步调查表明，芯帽在注射压力下也会弯曲。因此，本研究将研究有问题的零件在标准冷却液中的耐腐蚀性，以及零件在同一冷却液中的应力腐蚀开裂、疲劳腐蚀和电偶反应，然后根据实验结果，选择具有最小腐蚀速率和电偶电位的合理成本的材料或涂层。然后，将为冷却液添加适当的缓蚀剂，以最大限度地减少对零件的腐蚀损坏。这个项目将产生重要的新知识的材料行为和设计考虑的聚合物注射模具。这种类型的知识是至关重要的Calframax为改善他们的新模具产品。该项目的结果可能会导致设计和推出一系列新的模具产品在3至5年的时间跨度，并增加了Calframax的盈利能力。