The secret of stainless steel casting quality problems: a complete analysis of effective solutions

Stainless steel castings are widely used in many industrial fields, such as machinery manufacturing, automobile industry, aerospace, medical equipment, etc. However, various quality problems may occur during the production process, which will not only affect the performance of the castings, but also lead to increased costs and reduced production efficiency. Our company attaches great importance to the quality problems that may arise from stainless steel castings, and has therefore built a complete quality control system and provided corresponding solutions.

Everyone in the industry knows that the quality problems of stainless steel castings mainly include the following: pores, inclusions, shrinkage and shrinkage, cracks, etc.

To address the pore problem, we have taken measures from the aspects of raw material processing, optimizing the smelting process, designing a reasonable pouring system, and improving the air permeability of the casting.

Strengthen the inspection and screening of raw materials to ensure that the quality of raw materials meets the requirements. During the smelting process, refining techniques such as blowing and stirring, adding refining agents, etc. can be used to remove slag and impurities in the molten metal and improve the purity of the molten metal. Ensure the strength and compactness of the mold and core to prevent the sand from falling off and being drawn into the molten metal during the pouring process. At the same time, a suitable slag blocking device can be used during pouring to prevent slag from entering the mold cavity. The problem of inclusions can also be improved in a targeted manner.

By optimizing the process design and controlling the pouring temperature and speed, we can ensure that our products are free of shrinkage cavities and shrinkage problems.

Optimize the casting structure design, adjust the process parameters, and, if necessary, perform stress relief annealing on the casting to eliminate residual stress and reduce the occurrence of casting cracks.

The quality problem of stainless steel castings is a complex systemic problem, involving multiple production links such as raw materials, smelting, pouring, and casting.

In our actual production process, we use a series of quality tracking methods to ensure that there are no problems with product quality. If there is a problem, we can trace it back to the source of the problem more quickly and accurately through the system.