Stainless steel precision casting is a low-cut or no-cut casting process, an excellent process technology in the foundry industry, and its application is very wide. When we all improve the quality of stainless steel precision castings, what methods do we generally use to improve their quality?
The methods to improve the quality of stainless steel precision casting castings are as follows:
1. Mold planning: The surface treatment of stainless steel castings starts with the mold. The surface treatment of the mold is clean, that is, the surface is cleaned with sandpaper and brushed with nitro paint. For high-precision castings, metal or plastic molds are used.
2. Process planning: Strictly control the process. Before closing the box, ensure that the appearance and sand core are in a warm condition, ensure the fluidity of the molten steel during pouring, and use Foseke ISOMOL300 alcohol-based zircon powder coating for rough and damaged areas. Ignite and bake after brushing.
3. Fillet planning: In order to avoid white holes during stainless steel forging, in addition to technically adopting methods, it is necessary to make the wall thickness not too thin. When the wall thickness is more than 15mm, the corners of the forging castings with metal molds are used. It is necessary to use rounded corners;
4. Wall thickness planning: Because metal molds quickly dissipate heat, the minimum wall thickness for stainless steel forging should be larger than that of sand forging castings. For forging alloys and different sizes, the minimum wall thickness for forging should be larger.
5. Polishing plan: The flashing burr is removed during the polishing process, and the uneven surface is polished to avoid excessive lubrication. Regarding the heat-treated castings, they are polished and polished. The grain size of the steel shot is 0.85~1.4mm, and the hardness is HRC40-50.
When we all improve the quality of stainless steel precision casting castings, we can all follow the above methods to operate. The correct method to improve stainless steel precision casting castings is what we all need.