The domestic die steel industry should develop and promote the application of new types of die steel
Published Time:
2021-10-27
Improve metallurgical quality, increase varieties and specifications, and make defective materials into refined products: Adopt advanced equipment and technologies, advanced metallurgical methods and processes, such as ladle refining, electroslag remelting, vacuum treatment, multi-directional forging and rolling, precision forging and rolling, to produce high-purity high-quality steel; increase the production of modules, flat steel, square steel, and plates with high uniformity and high anisotropy.
Improve metallurgical quality, increase varieties and specifications, and achieve semi-finished and refined products: Adopt advanced equipment and technologies, advanced metallurgical methods and processes, such as secondary refining, electroslag remelting, vacuum treatment, multi-directional forging, precision forging, and precision rolling, to produce high-purity, high-quality steel; increase the production of modules, flat steel, square steel, and plates with high uniformity and high anisotropy. Provide semi-finished and refined die steel products through machining, tempering, and other methods. Transforming China's abundant alloy resources and labor resources into die steel product advantages, enhancing international market competitiveness, expanding exports—this is the strategic goal of China's die steel development.
Research and promote the application of new die steels: There are many types of new die steels in China, but there is still great room for research and development of new die steels, and the performance of some new steel types needs to be improved. For example, with the increasing number of large aluminum alloy castings, the research and development of large aluminum alloy die-casting die steel is still an urgent task. Also, with the rapid development of the construction industry in recent years, the research and development of die steel for ceramics and refractory bricks that is low in price, high in wear resistance, and has sufficient toughness is also a problem that needs to be urgently addressed.
Given that new die steels can significantly improve the service life of molds, solve production and technical problems in mold design, manufacturing, use, and repair, and achieve huge comprehensive benefits, the vigorous promotion and application of new die steels is warranted, with the expectation that the application of new die steels will increase year by year. At the same time, we should also pay attention to the use of old steel types, through reasonable material selection, the adoption of new technologies, and making the most of their strengths while avoiding their weaknesses, to maximize their effectiveness.
Establish an expert system for mold material selection: With the diversification of product varieties and the complexity of mold operating conditions, reasonable material selection has become more important and urgent. Existing research work has accumulated a large amount of data. Based on this, supplementing and improving steel grade performance data, summarizing new achievements and experiences in the field of mold material technology at home and abroad, and utilizing the increasingly widespread application of modern computer technology, establishing a highly instructive, advanced, reliable, and practical expert system for die steel material selection is imperative.
Establish a series of plastic mold steels: China's plastics industry is developing rapidly, and plastic products are widely used in agriculture, machinery, chemicals, construction, toys, daily necessities, automobiles, lamps, household appliances, etc., with large demand and high quality requirements. Correspondingly, the demand for plastic mold steel is rapidly increasing, and higher requirements are also placed on the use performance and process performance of steel. However, at present, the selection of materials for plastic molds is relatively chaotic, without rules to follow, and highly arbitrary, affecting the service life of molds and the quality and market competitiveness of plastic products. It is urgently needed to develop, introduce, and supplement and improve steel types to establish a series of plastic mold steels suitable for China, bringing the smelting, quality control, supply, material selection, processing, and use of plastic mold steel to a new level.
Strengthen the application of surface treatment technology: Surface treatment can, while maintaining the original composition and properties of the mold core, give the mold surface extraordinary performance (mainly wear resistance and corrosion resistance), significantly improving the service life of the mold and expanding the application range of die steel. It can also replace expensive die steel with cheaper die steel, therefore having broad application prospects and receiving attention from countries around the world. China should vigorously strengthen the basic theory and application research of surface treatment, adopt advanced equipment and technologies, and strive for the widespread application of various types of high-quality surface treatments on molds.
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