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The importance of stainless steel precision casting
Time of issue
Stainless steel casting is a technology in the foundry industry, but it is different from the traditional foundry industry because of the high added value of precision casting products. According to relevant statistics, the added value of European and American precision casting products in aerospace equipment and engines accounted for nearly 70% of the total added value, while in China this proportion is less than 35%.
The importance of stainless steel precision casting
This has led to the fact that although China is currently a country with a large casting volume in the world, its casting value is still at the middle and upper reaches of the level, and has not yet reached the level. Therefore, the fundamental significance of the development of stainless steel casting lies in two aspects, one is the fundamental needs of national defense and science and technology, and the other is the only way to develop the economy. Through the "Eleventh Five-Year", "Twelfth Five-Year" and "Thirteenth Five-Year" plans, China has continuously adjusted its industrial structure. The high-tech industry is playing an increasingly important role in China's technological and economic development.
Stainless steel casting, also known as investment casting, is a casting method with a wide range of applications, high dimensional accuracy, and excellent surface quality. It is suitable for the casting of parts in high-precision industries such as aerospace and defense.
The cross-use of science and technology is mostly complementary. The design and mold manufacturing in the process of making stainless steel casting wax molds are complicated and time-consuming. However, rapid prototyping technology can overcome this shortcoming. The reason for using rapid prototyping technology alone is that material limitations cannot be achieved. Therefore, in recent years, many polymer technologies have been used to obtain the round shape of castings, and then wax patterns are manufactured and put into use in stainless steel casting.
Through the above introduction, I believe everyone has a certain understanding of stainless steel casting. We specialize in the production of all silica sol investment precision castings, and provide joint development and one-stop customization services from mold manufacturing to precision casting production. Introduce foreign advanced technology and equipment, continue to innovate through its own efforts, and devote itself to providing high-quality precision castings for the Chinese manufacturing industry.
Xinmiao is willing to work with you to become your preferred supplier!
Dalian Xinmiao Casting Co., Ltd. is located in the east of Jinzhou District, Dalian, on the coast of the Yellow Sea, 50 kilometers away from Dalian Airport, 30 kilometers from the entrance and exit of Shen-Da Expressway, and Dan-Da Expressway passing by, 51 kilometers from Dalian Seaport, Dayao Development Zone The traffic is very convenient for 30 kilometers from the bay port. The company has a registered capital of 1 million yuan, a comprehensive production enterprise integrating casting, machining and product packaging, with modern production equipment and strong technical force.
Design and develop various casting products according to customer needs
The company's quality management is fully in accordance with the ISO9001 system management
What are the advantages and acceptance criteria of gray iron castings
Gray iron castings adopt lost foam, resin sand casting process, equipped with large gas tempering kiln, artificial aging, quenching and tempering to release internal stress, etc., to improve the accuracy of castings after processing. In the finishing process of the bed, the machine tool will cause thermal deformation of the spindle due to long-term cutting, which will affect the final machining accuracy. For high-precision machine tools and large-scale machine tools, the machining error caused by thermal deformation accounts for about 40~70%. Because thermal deformation can only be improved but cannot be eliminated, when the machine tool is determined, it is generally only possible to control the cutting conditions of the machine tool. To achieve the purpose of stabilizing the temperature of the machine tool, so as to avoid the influence of temperature changes on the machining accuracy.
What should the foundry pay attention to when manufacturing?
When the foundry manufactures bed casting products, as a large-scale casting, it must undergo heat treatment to improve its performance and improve the inherent quality of cast iron castings. Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing processes, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but by changing the internal microstructure of the workpiece or changing the chemical composition of the surface of the workpiece. , To give or improve the performance of the workpiece.
The difference between gray iron casting and ductile casting
The graphite of gray iron is flat and flake, and the graphite of ductile iron is spherical. If the spheroidal graphite cast iron is hit with a sound similar to that of carbon steel, it indicates that the spheroidal graphite cast iron is well spheroidized. But the sound of gray iron percussion sounds dull.