The secret to improving investment casting yield

Investment castings with internal flaws assembled in equipment pose an unpredictability risk to production. It will not only shorten the service life but also result in accidents.

Casting defects must be effectively controlled in order to reduce casting defects and improve casting yield. The first step is to accurately judge defects. As a result, it is necessary to understand various defect analysis methods, including general and special analysis methods. Determine the type of defect, analyze its causes, and propose prevention measures before implementing them through technology and management.

One of the most important technologies for increasing casting yield is the analysis and study of casting defects. However, the challenge is not insignificant. The main display in a. encompasses a wide range of topics, such as alloys, casting technology, and process detection, among others. b. the variety of reasons for casting defects. A variety of reasons can cause one type of defect, and one reason can cause several types of defects. c. the conditionality of technical measures, such as adopting some measures to prevent one type of defect but causing another. d.Impact factors such as raw material quality and air temperature and humidity are difficult to control.

Although the type of defect is the same, the forming reason and preventing measures differ depending on the casting alloy. To eliminate shrinkage cavity defects in large, thick-walled nodular cast iron parts, use the solidification process of graphite expansion and no riser casting. As a result, we must thoroughly examine the specific situation.