Foreign technology status: Hangzhou Steam Turbine Casting and Forging Co., Ltd. pointed out in the patent technical background of “a kind of gas turbine inlet cylinder and manufacturing process”, that a Japanese company provided a domestic company with a nodular cast iron inlet cylinder casting used for gas turbine...
At present, in the field of digital casting, domestic research focuses on the development and application of digital casting database system or expert system, mainly focusing on casting technology and casting defects. In terms of casting technology, Hao Xiaoyu of North University of China and others take the widely...
According to GB / T 1173-1995, the cast aluminum alloy code is composed of the letters “Z” and “L” (they are the first letters of Chinese Pinyin of “cast” and “aluminum” respectively) and three Arabic numerals after them. The first number after ZL indicates alloy series, in which 1,...
Improve and perfect the existing mature and practical casting instruments and equipment, strive to achieve multi-functional, integrated, automatic and intelligent, and conduct decentralized online measurement and control for each link of casting production. The computer and CAD expert system module are used to connect the automatic measurement and control...
Develop new technology of investment casting mold and die material, use silica sol or ethyl silicate as binder; adopt precision, large-scale and thin-wall investment casting forming technology; adopt rapid forming technology to replace traditional wax mold forming technology, simplify process and shorten production cycle; develop wax pressing equipment, shell...
To improve the internal and external quality of castings (such as dimensional accuracy and surface roughness), reduce machining allowance, and further promote the application of high mechanization, automation and high-density wet sand molding technology such as air impact, high pressure, injection molding and extrusion molding are the main development...
Develop large-scale cupola of more than 5t / h and adopt external hot air supply and water-cooled cupola without furnace lining for continuous operation according to the needs; carry out cupola induction furnace dual melting process; Advanced desulfurization and filtration technology of molten iron is widely used (development of...
Establish a new raw and auxiliary material system suitable for high-density clay molding sand, develop different kinds of raw sand and less pollution-free high-quality shell core sand according to different alloy, casting characteristics, production environment, and grasp the research and development of China’s raw sand resources, carry out research...
With the goal of strengthening and toughening, lightening, precision and high efficiency, we should develop new cast iron materials, focus on the development of ADI heat treatment equipment, formulate national standards as soon as possible, and promote the new technology of ADI (such as interrupted heat falling sand method,...
(1) Global economic downturn, slow recovery The global economic situation is grim and complex. The weak demand in the international market has led to a large downward pressure on the domestic economy. The foreign trade industry has been greatly affected, and the export of traditional manufacturing industry is in...