Hebei Yogem Castings Co., Ltd

Which types of sand are often used in the dry sand treatment of stainless steel castings?   Grey Iron Casting Company  is here to help you. Regarding stainless steel castings, sand plays a vital role in its production process and has a great impact on the quality of stainless steel castings. Therefore, the selection and use of sand also have certain requirements. Which types of sand are often used in the dry sand treatment of stainless steel castings? Haiyao Casting is here to help you. Grey Cast Iron Casting The key part in the production of stainless steel castings is the sand treatment part, which is the treatment of dry sand. The selection of these types of sand will have less dust and will have a good effect, especially the pearl sand. Even if there is no sand treatment for the time being, it will be artificially cooled. Sand dust removal is relatively quicker. Commonly used dry sand for stainless steel castings is generally washed quartz sand, sea sand and pearl sand, with a part

  Grey Cast Iron Casting 1. Charge ratio: The method of charge ratio is pig iron + scrap steel + recharge material + recarburizer, and the nitrogen in the recarburizer is used to change the shape and length of graphite to increase the hardness of gray iron castings. 2. Control of chemical composition (1) Many smelting companies believe that sulfur is harmful. The lower the content of sulfur in molten iron, the better. In fact, this is not the case. "Silicon carbide" and "manganese-sulfur ratio" should be considered in gray iron castings. . That is, Mn=1.71S+(0.2~0.5). HT250 chemical composition table: CPSiMnTiS3~3.3≤0.121.65~2.050.7~1.1≤0.05≤0.12 (2) For low alloying, one or two alloying elements should be added. When adding, the content of carbon element should be considered and not blindly pursued hardness. 3. Overheating of molten iron For gray iron castings, increasing the temperature of molten iron within a certain range can refine the graphite, make the matrix

  As an   OEM Castings Supplier , share with you. Grey Cast Iron Casting 1. Charge ratio: The method of charge ratio is pig iron + scrap steel + recharge material + recarburizer, and the nitrogen in the recarburizer is used to change the shape and length of graphite to increase the hardness of gray iron castings. 2. Control of chemical composition (1) Many smelting companies believe that sulfur is harmful. The lower the content of sulfur in molten iron, the better. In fact, this is not the case. "Silicon carbide" and "manganese-sulfur ratio" should be considered in gray iron castings. . That is, Mn=1.71S+(0.2~0.5). HT250 chemical composition table: CPSiMnTiS3~3.3≤0.121.65~2.050.7~1.1≤0.05≤0.12 (2) For low alloying, one or two alloying elements should be added. When adding, the content of carbon element should be considered and not blindly pursued hardness. 3. Overheating of molten iron For gray iron castings, increasing the temperature of molten iron within a certai