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High grade castings

The invention discloses a casting method for high-grade cast iron. The method specifically includes: first, the post-furnace feeding step, and secondly, the iron smelting step, the first added furnace material melting into iron water, iron water composition adjustment and then iron water high temperature refining, the adjusted iron water composition includes:


  • Description
  • Hebei Shengli Casting Co., Ltd. is a core subsidiary of Chunfeng Industrial Group. Total Area of the Company36000sqm, total of existing staff500Many, including professional and technical quality personnel30Many, engineers.10Multiple names. The enterprise has4Taiwan3tons of medium frequency induction melting furnace,40T,80TOne fixed sand mixer each, one static pressure horizontal modeling production line equipped with the world's advanced level and one cast iron radiator production line with independent intellectual property rights, with annual production capacity.20000Many tons, the products are well-known domestic OEMs and exported to the United States, Russia, Europe and other countries. At the same time, the company also has the industry's advanced and complete testing equipment, German Spike spectrum analyzer, gold-phase microscope, ultrasonic flaw detector, through-type.XRadiographic flaw detector, tensile testing machine, Brinell hardness tester, etc., can meet the multi-directional testing requirements of casting performance and material.

    The company focuses on technology research and development, with process, quality, production engineers.10More than people, all in the foundry industry5More than years. Has a wealth of gray iron, ductile iron casting development and production experience.

    The products produced by the company have the characteristics of high precision, good cutting performance and good surface finish. Enterprises to implement the modern enterprise management model, the full implementationISO9001andTS16949Quality management system, while the introduction of the establishment ofISO14001Environmental management system. The company has won honors such as green casting demonstration enterprise in Hebei Province, star enterprise in Hebei Province, science and technology small and medium-sized enterprises in Hebei Province, and key export-oriented enterprises in Hebei Province.


    The invention discloses a casting method for high-grade cast iron. The method specifically includes: firstly, the feeding step of the back furnace; secondly, the molten iron smelting step, first melting the added furnace material into molten iron, adjusting the composition of the molten iron and then refining the molten iron at high temperature, the adjusted composition of the molten iron includes: carbon 2.8% to 3.3, silicon 1.6% to 2.1, manganese 0.2% to 0.4, phosphorus 0.02% to 0.07, sulfur 0.02% to 0.06%, chromium 0.2% to 0.4%, copper 0.3% to 0.6%, tin 0.04% to 0.1%. The high-grade cast iron casting method improves the strength and hardness of the casting by reducing the amount of conventional alloy manganese, sulfur, copper and tin in the production of gray iron casting, and does not add the above precious metals, which reduces the production cost and avoids the casting. Shrinkage, shrinkage and other defects.

    Sovereign terms: 1. A high-grade cast iron casting method, characterized in that it specifically includes: firstly, a post-furnace feeding step; secondly, a molten iron smelting step, in which the added furnace charge is first melted into molten iron, and the molten iron composition is adjusted before high-temperature refining of the molten iron, and the adjusted molten iron composition includes: carbon 2.8% to 3.3%, silicon 1.6% to 2.1%, manganese 0.2% to 0.4%, phosphorus 0.02% to 0.07%, sulfur 0.02% to 0.06%, chromium 0.2% to 0.4%, copper 0.3% to 0.6%, tin 0.04% to 0.1%.

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