Microstructures And Properties Of New Pype High-Cr Hot Working Die Steel

The dies are called as"black gold"because of their high cost and complicated process, and the die fabricating level is an important marking that measures a national product manufacturing level. In recent years, the whole world die steels market total amount is in a motion of 60 ~ 65 billions dollars. In China, die industry was listed as the industry of the point support development policy in the document"The decision of the important point concerning the current industry adjustment policy"promulgated by State Department in 1989, and in the following 10 years the production value of die industry increased near 930%. To 2002, the Chinese production value of die industry was 36 billions RMBs and then increased about 17% every year. With the adjustment of the global economic industrial structure, the center of traditional industry, such as manufacturing, transfers toward developing country because of the gradual saturation of Euro-American market, the raise of labor cost year by year, and the reduce of profits, which brings the unprecedented opportunity to China for the development of die business and decides that China will necessarily become a big country of the die production.With the high-speed development of mechanical industry, more and more parts are processed by hot extrusion and finish forging, so the hot working dies play an increasingly important role in today. Compared with the developed countries, the die industry of our country still relatively falls behind, of which the main representations are having few of the new die materials with independent intellectual property, the out-of-date means of die manufacturing, the low using life of dies, and the low producing efficiency. Therefore, developing the high-quality hot working die steels with complete independent intelligent property, raising the using life of hot...