Die steel is a steel used to make molds such as cold die and hot forging die. Molds are the main processing tools for manufacturing parts in industrial sectors such as machinery manufacturing, radio instruments, motors, and electrical appliances. The quality of the mold directly affects the quality of the pressure processing technology, the precision production and production cost of the product, and the quality and service life of the mold are mainly affected by the mold material and heat treatment, in addition to reasonable structural design and processing accuracy.
Die steel can be roughly divided into three categories: (cold work die steel), (hot work die steel) and (plastic die steel) for forging, stamping, cutting, die casting and the like. Due to the different uses of various molds and complicated working conditions, the steel for molds should have high hardness, strength, wear resistance, sufficient toughness, and high hardenability and quenching according to the working conditions of the molds they manufacture. Hard and other process performance. Due to the different uses of these types and the complicated working conditions, the performance requirements for steel for molds are also different.
The cold working die includes a cold die, a drawing die, a drawing die, an impression die, a wire die, a rolling plate, a cold die, and a cold extrusion die. The cold working die has steel, which has high hardness, strength, wear resistance, sufficient toughness, high hardenability, hardenability and other process properties according to the working conditions. The alloy tool steel used for such purposes is generally a high carbon alloy steel with a carbon mass fraction of 0.80% or more. Chromium is an important alloying element of such steel, and its mass fraction is usually not more than 5%. However, some wear resistance is very high, and the deformation is very small after quenching. The highest chromium content can reach 13%, and in order to form a large amount of carbides, the carbon content in the steel is also very high, up to 2.0%~ 2.3%. Cold work die steel has a high carbon content, and most of its structure belongs to hypereutectoid steel or lysitic steel. Commonly used steels are high carbon low alloy steel, high carbon high chromium steel, chromium molybdenum steel, medium carbon chromium tungsten steel.
Hot work dies are divided into hammer forging, die forging, extrusion and die casting, including hot forging dies, press forging dies, stamping dies, hot extrusion dies and metal die casting dies. In addition to the large mechanical stress, the hot-deformed mold has to withstand repeated heat and cooling, causing great thermal stress. In addition to high hardness, strength, red hardness, wear resistance and toughness, hot work die steel should also have good high temperature strength, thermal fatigue stability, thermal conductivity and corrosion resistance, in addition to high requirements. Hardenability to ensure consistent mechanical properties throughout the section.
For the die-casting mold steel, it should also have the surface layer subjected to repeated heating and cooling without cracking, and subjected to the impact and erosion of the liquid metal flow. This type of steel is generally a medium carbon alloy steel with a carbon mass fraction of 0.30% to 0.60%. It belongs to hypoeutectoid steel, and some steels become eutectoids due to the addition of more alloying elements (such as tungsten, molybdenum, vanadium, etc.). Hypereutectoid steel. Commonly used steels are chrome-manganese steel, chrome-nickel steel, chrome-tungsten steel, and the like.
Plastic molds include thermoplastic molds and thermoset plastic molds. Steel for plastic molds requires certain properties such as strength, hardness, wear resistance, thermal stability and corrosion resistance. In addition, it also requires good processability, such as small heat treatment, good processing performance, good corrosion resistance, good grinding and polishing performance, good repair welding performance, high roughness, good thermal conductivity and stable working size and shape. . Under normal circumstances, hot-formed die steel can be used for injection molding or extrusion molding; cold-formed die steel can be selected for thermosetting forming and molds requiring high wear resistance and high strength.
Why are all the scenic spots using space capsules house?
The tourism industry is developing very fast, and the same attractions have no characteristics, and it is also difficult to attract consumers. In fact, many scenic spots have begun to use space capsules. This kind of architectural design is unique, and the price is very favorable, and the construction efficiency is high. It can be constructed according to our needs immediately. So what are the advantages of such a building? Why are attractions in use?
removable design
Space capsules house are generally made of steel, etc., and do not need to lay foundations, do not require land approval, can ensure that the construction is pollution-free, and the construction efficiency is also guaranteed. Moreover, it is generally possible to carry out mobile design directly, so that only need to design and construct according to the needs, the use of the building is also guaranteed, and it is very convenient to move and use at any time.
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Because the design style of this kind of building is unique, it is completely different from ordinary prefabricated houses, and it can also be painted and designed on the surface. Basically, after the construction of this kind of building is completed, it will immediately become a landmark building of the scenic spot, and it has a cosmic atmosphere, so everyone still likes it very much. Distinctive design is also important if you want to attract tourists.
long lasting
The construction of the space capsule house is simple, and its service life is relatively long, because it is made of light steel structure, the wall panels are made of aluminum alloy panels, and three layers of insulating glass, so as long as you can buy high-quality materials, then its use The lifespan can reach more than several decades. Its material has strong corrosion resistance, and is windproof, fireproof, etc., and its practicality is also very guaranteed. Buildings with high safety factors and favorable prices are also worth choosing.
discount price
Because each scenic spot may have a time limit for decoration, it is also necessary to pay attention to the budget. The construction of the space capsule is very simple, and the design can be completed according to the needs, and its construction cost is also very favorable. Moreover, it can be constructed quickly, put into use immediately, and will not generate any construction waste, etc. The cost-effective building is also very suitable for various scenic spots.
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Henan Jinming Metal Material Co., Ltd. , https://www.jinminghouse.com