Establish a new raw and auxiliary material system suitable for high-density clay sand, according to different alloys, casting characteristics, production environment, the development of different varieties of raw sand, less pollution-free high-quality shell core sand, pay close attention to the research and development of raw sand resources in China, carry out research to replace special sand and develop artificial foundry sand; The development of wet sand binder is focused on the development of new pulverized coal and additives to replace pulverized coal.
To develop new resins needed for phenolic resin self-hardening and C02-phenolic resin process, improve the strength, improve the hygroscopicity and expand the application range of resin by sodium polyacrylate-powder-curing agent C02 method; Research on raw materials, process, regeneration and equipment of ester hardening basic resin self-hardening sand was carried out in order to popularize the resin self-hardening sand process as soon as possible. With the development of high reactivity resin and its supporting cheap new warm box catalyst, the core making process is transformed from hot box method to warm box method and cold box method to save energy and improve the quality of sand core.
Strengthen the research on the hygroscopicity and collapsibility of water glass sand, in particular, we should vigorously develop new technologies for the reuse of old sand, and recycle cast old sand as much as possible to reduce production costs, reduce pollution, and save resource consumption.
To develop resin self-hardening sand core molding, filling process and related materials under controlled atmosphere and pressure, strengthen the development and research of domestic special raw sand and less pollution-free high-collapse resin, in order to meet the needs of production of thin-wall high-strength aluminum alloy cylinder block and head. Improve the strength and toughness of the coated sand, improve the collapsibility of the coated sand, improve the thermal deformation of the coated sand, and accelerate the hardening speed of the coated sand.
Establishment of a new coating series adapted to the near unlimited precision forming technology - vigorously develop organic and inorganic series of non-space-occupying coatings for precision forming casting production. Develop self-hardening transfer coatings for metal molds, hot core boxes and molds used in small batch production of precision castings, and develop microwave hardening transfer coatings for precision sand cores. In order to improve the dimensional accuracy and surface quality of the inner cavity of important castings of automotive cylinder block and cylinder head, and solve problems such as sticky sand and rough surface in the shell casting of steel castings, Promote the application of non-occupying coatings or high permeability, thin coating technology combined with mold sand technology.
Vigorously develop the flow coating, dip coating coatings and equipment to meet the resin sand mechanized production line for high-quality steel castings, and develop metal type series coatings that can control cooling speed, improve light alloy quality, reduce demudding (core) resistance, and improve production efficiency. Develop sintered shielding coatings (such as anti-carburizing and sulfurizing coatings) that can block harmful gases from resin sand (core) into castings and inhibit porosity cracks and other defects, and develop wet spraying coatings suitable for clay sand.
Strengthen the basic research of coating properties and its colloid chemistry and rheology, carry out the research of coating microwave, far infrared drying and hardening technology, develop and formulate testing methods (including testing instruments) and standards for raw materials and properties of coatings, and establish its information database.
Under the condition of improving the quality of cast iron and adopting desulfurization technology, improving the formulation of nodulator, reducing the content of magnesium and rare earth, and improving the nodulator effect: developing nodulator for special alloys and special process.
To increase inoculant varieties, develop targeted inoculants, and improve the uniformity of inoculant particle size.
Develop new desulfurizer (such as CAO) compound desulfurizer, etc.).
Sr salt or A1-SR modifier and grain refiner based on domestic resources should be developed to strengthen the comprehensive research of Sr modification and refining process.
Refining agent and refining-metamorphic aluminum alloy flux adapted to RID and F1 technology were developed.
Promote the application of computer expert system in the quality control of molding materials such as molding sand.
Changshu Hongqiao Cast Steel Co., Ltd. was established in March 2003, is a private joint-stock enterprise. The company now covers an area of 25,000 square meters, production workshops of 15,000 square meters, offices, dormitories of 2,000 square meters, more than 100 employees. The company mainly produces various specifications of carbon steel, high, medium and low alloy steel, stainless steel, heat-resistant steel, high manganese steel, high chromium cast iron. For petroleum, chemical industry, metallurgy, mining machinery, coal mining machinery, wind power, nuclear power, Marine and other industries to provide high-quality steel casting, and export abroad.