With the sustained rapid growth of China's economy, the domestic mold manufacturing industry is growing at a faster rate than GDP. This also provided a huge market for the development of domestic mold steel, which drove the rapid increase of the output, variety, specifications and quality level of domestic mold steel. As the base of mold manufacturing, the performance of die steel directly affects the service life of the mold, production cost and other factors, and is increasingly valued by many mold manufacturers. Development of new cold work die steel Mr. Anda Qianyi: The automotive industry has always been regarded as the driving force behind the traction of various industries. At present, in order to achieve the goal of lightweight and safe design, various automobile manufacturers rapidly expand the effective use of high-strength steel sheets (super hard, super strong). However, from the difficult formability of the press processing itself, the problem of the life of the mold has been gradually put on the agenda. On the other hand, the cost reduction and shortened delivery period faced by the mold industry is already urgent. Therefore, both industries are most eager to develop mold materials that are easy to cut and have little dimensional distortion after heat treatment. Hitachi Metals combines the experience and development power of more than 100 years of steelmaking to develop a next-generation cold work die steel that goes far beyond the characteristics of SKD11, which is the SLD-MAGIC. Through the comparison test with SKD11 modified steel 8%Cr steel (our company's commercial SLD8), the high performance new cold work die steel SLD-MAGIC has shown considerable improvement in the life of the mold, reducing the total cost of mold production and shortening the delivery period. Advantage. Mainly reflected in the following aspects: - Abrasion resistance: The highest hardness in HRC62 is about 35% higher in wear resistance, which greatly increases the life of the mold. - Surface treatment property: The adhesion of the surface treatment film (method such as CVD) is increased by about 30%, and the scratches generated during molding such as bending and stretching of high-strength steel are prevented. - Heat treatment characteristics: The heat treatment inch is reduced by about 40%, and the shape deviation is also improved. Less dimensional deformation for heat treatment and surface treatment, reducing repair time. - Machinability: The machinability is increased by about 35%, and the processing time is shortened in the mold manufacturing based on the improvement of the processing efficiency. The above-mentioned characteristic values ​​of abrasion resistance, heat treatment characteristics, surface treatment property, and machinability are representative data which are compared with the company material SLD8, and may be slightly different from the actual product property value. The rapid development of the mold industry puts new demands on mold steel Dr. Li Shi: Generally speaking, technical standards include the selection of mold materials, the specific process of heat treatment, the control of electrical discharge machining, the surface roughness, and the surface treatment of mold parts (such as die-casting thimbles). This requires mold steel suppliers to provide high-performance die steels for different application needs, and to communicate with mold manufacturers about process requirements specified in mold manufacturing specifications other than material properties, such as surface coating processes. Ober-Dova Mould Technology (Wuxi) Co., Ltd. is able to provide high-quality mold steels produced by the French company Oub-Dova for the majority of mold manufacturers and the existing sales team can communicate with those mold manufacturers to reach foreign buyers. The specified technical specification. The company provides hot work die steel, cold work, plastic and glass mold steel. In some applications, such as high-pressure die-casting molds, France's Ober-Dova has its own production specifications. The products produced are designated and recognized by European and American car manufacturers. Its product quality is higher than the European and American industry technical specifications (such as the NADCA North American Die Casting Society specification) and guarantees the stability and long-term life of the mold. In this application, the Auber-Dewar brand ADC3 is especially suitable for large mold applications. One of the current trends in the automotive industry is the use of pressure casting to manufacture large aluminum and magnesium alloy components, such as automotive engine blocks. The manufacture of such products requires the thickness of the mold steel to be more than 300 mm, and the three-dimensional forged steel material is preferred. The Ober-Dova factory has its own unique features in 3D forging, which guarantees the uniformity of the 3D performance of the materials used. In addition, the SMV3W (1.2343ESR) and SMV4S (1.2344ESR) of the Auber-Dowa brand are also designated by the car manufacturer. In Europe, the above three types of products show good performance and extend the life of the mold in practical applications, thus reducing the cost price of a single piece. In some applications, such as the production of automotive gearbox housings, molds made from ADC3 steel have a lifespan of more than 200,000 pieces, far higher than the commonly used 1.2344 ESR steel grades. In the application of plastic molds, the steel grade X15TN produced by Ober-Dova adopts the manufacturing process of nitrogen-substituted carbon alloy elements to ensure the excellent polishing performance of this steel. X13T6W (S236), MEK4, SMV3W are used on reflective plastic parts of automobile lamps, which have excellent polishing performance and no common polishing pinhole phenomenon. The impurity content of each steel grade is extremely low, and the impurity (S) content of the product is within 5 PPM and the oxygen content is within 10 PPM. Along with the rapid development of the mold manufacturing industry, mold suppliers must be able to provide high-quality, high-performance mold materials to meet customer requirements. At the same time, the supplier must have a team of sales experts who provide system application advice to customers. In this regard, Ober-Dova is able to provide customers with excellent products and services to drive the entire mold manufacturing level. 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