? The existing die steels can be roughly divided into three types: cold-rolled die steels, hot-rolled die steels and plastic die steels, all of which are used for forging, stamping, die cutting and die casting. Due to the important position of die in the manufacturing process, its extensive functions and complex working conditions, in order to meet the working conditions of manufacturing die, die steel should meet the corresponding technological properties such as high hardness, strength, wear resistance, sufficient toughness, hardenability and hardening ability. Due to the different uses of molds and complicated working conditions, foreign technology far exceeds domestic technology. The following small series recommends four famous foreign brands that produce molds. ?

Proposal 1: Arcelor Group

The group cooperated with Russia in June 2006? Cherveill Starr? The group merged to become the largest steel enterprise in the world. Indian steel company? Steel mills are the main members of Arcelor Group. At present, there are three production bases, and France Arcelor Group is one of the largest steel production groups in the world. Located in France and Belgium. Crusoe? Schneider? The factory was established in 1836. Factory production equipment is advanced and complete, with 200 tons? 100MVA？ Electric furnace, via VA? D, VOD vacuum refining, casting into steel ingots or die casting and continuous casting. It can produce 950mm thick plates, ensuring uniform materials and stable performance. 70% of steel is exported.

Recommendation 2: Oberdua Company

At the same time, we develop and produce all kinds of steel with Erasteel. The company owns 40~70 tons electric arc furnace, is a member of Eramet (Metallurgical Mining Group), and is the world's leading producer of alloy, manganese and nickel alloy. The company can design, manufacture, process and sell special steel, aluminum alloy and titanium alloy.

Recommendation 3: Gerriets Iron and Steel Works.

There are 7 branches, which mainly produce plastic die steel, hot die steel, cold die steel, stainless steel and alloy structural steel. The factory has a large-capacity electric arc furnace, the ingot weight can reach 140 tons, and the maximum ingot weight of the electroslag remelting plant is 84 tons, and the maximum diameter is 1600mm, which has the highest purity and meets the industrial high-tech requirements. As a global multinational enterprise, Glise has 17 regional offices and institutions.

Recommendation 4: Datong Special Steel Company Limited

Datong Iron and Steel Co., Ltd. was established in 192 1. 1965438+ 1.5T for factory production in 2006? Heroult electric arc furnace is the oldest steelmaking furnace in Japan. It was named by American Metal Institute (ASM) as the 59th ASM historical symbol in the world (ranked second in Japan) in 1988. After 90 years' development, Datong Special Steel has now demonstrated its strong strength in six major fields: special steel, electronic data, auto parts, industrial machinery parts, engineering equipment and new data.

At present, domestic iron and steel enterprises must pay close attention to developing new varieties of die steel with high precision, high toughness, corrosion resistance and high quality according to the development direction of die manufacturing industry and the demand of die international market, so that domestic hot-rolled and cold-rolled die steel can reach the world advanced level. It is believed that in the near future, the quality and technology of domestic die steel will be better and better, and we look forward to the strong counterattack of domestic manufacturers and lead the domestic die steel industry to a higher level. A bright future, we will wait and see.

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