I.Section 1 Basic Knowledge of Quality Inspection WorkOverview Firstly, one should be familiar with the specified requirements (quality standards) for one or more characteristics being inspected, and ...
① There are Two Types of Quality Defects During a training session, I once asked, "What is meant by a product with quality defects?" Most people couldn't answer immediately. After a sho...
① Differentiating between Quality Defects and Action Errors It is often said that it is impossible to guarantee a defect rate of 0, but a rate of 0 self - errors can be guaranteed.The defect mentione...
(1) Drawbacks of Polishing Quality Issues1) The edge of the cavity’s inner hole may have collapsed corners, mixed angles, or bruises, and after polishing, the opening of the inner hole may enlarge (c...
During the injection molding process, the injection speed affects the flow state of the molten material in the mold cavity, which in turn influences the quality of the product.Low Injection Speed: Whe...
1. Causes of Poor Surface GlossWhen evaluating the gloss of injection-molded products, the key factors are the degree of brightness on the surface and the uniformity of that brightness. Typically, two...
The acceptance of injection parts consists of internal quality acceptance and external quality acceptance.(1) External Quality Inspection and Acceptance of Plastic PartsUnder normal conditions of inje...
(1) Causes of Cracking:Injection molded products are prone to cracking at the gate, especially near direct gates, primarily because the gate is the narrowest part of the mold flow channel. This requir...
1. DeformationIn the quality inspection, there are several cases of deformation, which need specific analysis. Deformation is divided into several cases of overloading deformation before packaging, de...
There are three main indicators to measure the success of a business, that is, the increase in employees, turnover and profits; There are also three main indicators to measure the success of an enterp...
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