Plastic mold steel work process HPM1 mold steel, in the long-term effect of cyclic stress often leads to fatigue fracture. In the form of small energy repeated impact fatigue fracture, tensile fatigue fracture contact and bending fatigue fracture fatigue fracture in a high temperature state hot work die, required to maintain its organization and stability, thereby maintaining a sufficiently high hardness, this performance is called red hardness. Carbon tool steels, low alloy tool steel is usually able to maintain this performance in the temperature range 180 ~ 250 ℃, the chromium-molybdenum steel hot die generally within a temperature range of 550 ~ 600 ℃ to maintain this performance. Red hardness of steel depends on the chemical composition and heat treatment of steel. Studies show that high-carbon and low-alloy tool steel and high-carbon steel can be carried out in carburizing or carbonitriding. Low-carbon steel carburizing or carbonitriding HPM1, should choose a lower heating temperature and shorter holding time as possible, then you can ensure that there is more surface core undissolved carbides, carburizing and carbon After nitriding, surface granular carbide, carbide, there was a marked increase in the total volume can increase wear resistance of steel. High alloy tool steel machining and heat treatment HPM1 suppliers, usually more difficult than the low alloy tool steel, and therefore mold manufacturing costs are higher, while the ASP-23 high speed steel powder its machinability, manufacture than traditional methods of high Fortunately, alloy tool steel, dimensional stability heat treatment is relatively good, and easy to predict. More because of ASP-23 high hardness, good toughness and high temperature tempering characteristics, especially for surface treatment, very easy to process. Two heating changes when heated to room temperature and tissue transformation of austenite and martensite transformation upon heating tempering; three cooling transformation of austenite to pearlite transformation of austenite to bainite transformation of austenite to martensite transformation. So according to these theories and data can be formulated heat treatment process or the operation system. Of course, some practical experience and operational capacity is a must. Recent domestic policies to stimulate the market demand for the introduction of intensive HPM1 steel, the Ministry of Finance to cancel coal import tariff on the market sentiment to form a strong boost. APEC summit to be held in Beijing, environmental management efforts to increase steel production is expected to bring, but also the formation of the steel market confidence boost. Recently black chain futures eye-catching performance, iron ore futures trading, futures also just under 1 yuan thread limit, the spot businesses will significantly push up the market mainstream offer short term cumulative increase of nearly hundred dollars. However, the price level after a turnover and no timely follow-up, lower procurement initiative slowdown, the business mentality tends to be cautious, resources to pull up too fast quote section loose. Given the current stocks are low, specifications shortage and other factors on the current market price is still strong support, short-term price or low balance finishing. Yong Wei mold steel | HPM1 steel | North flow HPM1 provided by Yong Wei steel mold. Looking for "Die steel, DC53, SKD11.SUS440C, SUS420" reliable supplier, choose to have the entire network ShangMeng Certified: Dongguan City An Yongwei mold steel shop (www.dgyongwei.com), trustworthiness and reliability, now click on "Commercial Union Support" on page live chat with us now!