Lechang SKH-9, SKH-9 high speed steel, Yong Wei steel mold (certified merchants) provided by the Dongguan City An Yongwei steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) is a professional "mold steel, DC53, SKD11.SUS440C, SUS420" of the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that "Sweden Assab, Daido, Hitachi, Austria Bluff" brand has a good reputation. We adhere to the "service first, customers first" principle, the permanent mold steel Granville won the trust of customers congregation in special steel, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Mold just include Die, drawing dies, drawing die, pressure die, thread rolling dies, rolling plate, cold heading and cold extrusion die molds. Cold mold the steel SKH-9, according to its manufacturer with working conditions, should have a high hardness, strength, wear resistance, sufficient toughness, and a high rate of penetration, rate of hardness and other process performance. Mold just include Die, drawing dies, drawing die, pressure die, thread rolling dies, rolling plate, cold heading and cold extrusion die molds. There are steel cold mold, according to its manufacturer with working conditions, should have a high hardness, strength, wear resistance, adequate toughness, and a high rate of penetration, rate of rigid and other process performance. As a result of improper processing of steel castings, or surface may be formed within the pores, loose, trachoma, segregation, cracks and other defects in the process of thermal processing technology; in forging blank, it is possible to form a shrinkage, segregation, white point, inclusion material, such as cracks. These defects have a great influence on the quenching cracks steel. In general, the more severe the original defect, the greater the tendency of its quenching cracks. Also can effectively improve the low magnification and density of steel by ESR and improve mold steel isotropic. Some domestic production plant test description EAF steel production 4Cr5MoSiV1 transverse impact toughness value is only about 31% of the longitudinal, after 4Cr5MoSiV1 by remelting of steel, transverse impact toughness values ??can be equivalent to 70% of the longitudinal, increased by more than 1 times. For the special requirements of the steel mold, then using a powder metallurgy process to produce high-speed steel and high-alloy tool steel powder, can better improve the microstructure and properties of the steel. The advantage of this method is that no special equipment, low cost, easy. But it also has the most serious drawback, namely the risk of cracking and peeling plaster there in the heating process, so SKH-9 rod, there may be a partial oxidation and decarbonization; the second is an ointment exist on the surface, the impact of quenching quality (reducing coolant cooling capacity and paste objects falling within the hardening agent will change the cooling rate of the coolant); the third is hardening artifacts difficult to clean; four is coated with a large amount of smoke when heated workpiece paste material SKH-9 High Speed Steel, on the furnace and the environment adversely. In the continuing weakness of the state of the market, China's steel output or "pressure not down." September nationwide average daily crude steel output remained slight increase QoQ; average daily production of steel is the second highest on record. Thus, the contradiction between the long-term accumulation of iron and steel industry has a very complex factors, not "profit loss on the pressure of production, elimination" so simple.