For the cracks generated during the welding operation of precision casting manufacturers, the weld seam should be cut along both sides of the crack first. The depth and length of the groove should be cut off at the crack location before welding again. When welding cracks, first use a stainless steel head and gradually weld along the crack from the root. For strength exceeding HRC38, AI02 welding wire should be used for covering.

The position where precision castings must be welded by hierarchical welding should be cleaned up before welding the second layer when the ambient temperature of the first layer is cooled to 200-300 ℃, and so on. Do not be too anxious to carry out the next layer of welding to prevent poor welding quality.

When designing heat treatment fixtures, there are also some common problems. As a manufacturer of heat treatment fixtures, there are some precautions that must be paid attention to when dealing with design heat treatment fixtures. Let's take you to understand together!

1) Conduct in-depth analysis of product workpiece construction and technical standards to achieve maximum technical standards.

2) Ensure that the work clothes can reliably support the entire process of heat treatment for load-bearing product workpieces and have a longer service life.

3) Ensure that the product workpiece is uniformly heated, nitrided, carbonitrided, and cooled on the work clothes.

4) Transport as many product workpieces as possible to improve the productivity of the heat treatment process and reduce energy consumption.

5) Try to combine the practicality of work clothes as much as possible, reduce the type of work clothes, simplify the management of chemical equipment, and control costs.

6) Minimize the use of raw materials and manufacturing costs at work as much as possible.