All those who work in the fields must compose with commonly used metal materials. This time, the publisher will share with you 24 materials commonly used for the treatment of machines and mussels.
1. 45 —— High -quality carbon construction acor, soaked steel and the most commonly used carbon content
Main features: soaked steel and most commonly used average carbon income has good complete mechanical properties, low trembability and is subject to cracks during water caliber. Small parts must be soaked and returned, and large parts must be standardized. Examples of application: mainly used to make high -resistance mobile parts, such as turbine wheels and compressor pistons. Trees, gears, racks, endless screws, etc. Pay attention to the preheating of welded parts before welding and the relaxation reception after welding.
2. Q235A (A3 steel) – The most commonly used carbon construction steel
Main characteristics: It has plasticity, tenacity, high welding performance, cold stamping performance, as well as certain resistance and good cold folding performance. Examples of application: widely used in welded parts and structures with general requirements. Such as tiering, connecting rods, axes, trees, screws, nuts, virols, supports, machine bases, building structures, bridges, etc. which are not subject to important forces.
3. 40CR – One of the most widely used types of steel, belonging to allied construction steel
Main characteristics: after soil and income treatment, it has good complete mechanical properties, shock resistance at low temperature and low sensitivity to cuts. It has good dipability and can obtain high resistance to fatigue when it is cooled in oil. The parts with complex shapes are prone to cracks when they are cooled with water. Plasticity by medium cold flexion. After caliber or caliber and income, the machinability is good, but the suddenness is not good and cracks occur easily. It must be preheated to 100 ~ 150 ℃ before welding. It is generally used in the soaked and income state. Carbonitruration and carbonitruration can also be carried out. Examples of application: after caliber and income, it is used to make medium speed and medium load parts, such as machine tool gears, trees, endless screws, fluted trees, sleeves of sleeves ejection, etc. After quenching and income and surface caliber at high frequency, it is used to make high -hardness and durable surfaces, such as gears, trees, pins, crankshafts, pins, sleeves, pins, connecting rods , screws and nuts, intake valves, etc., are soaked and revenue at medium temperature. After fire, it is used to make heavy and medium speed impact parts, such as oil pump rotors, sliders, gears, pins, necklaces, etc. After soaping and income at low temperature, it is used to make heavy impact parts. , with low impact and wear resistant parts. Like endless screws, pins, trees, necklaces, etc., the carbonitruration process is used to make larger transmission parts and greater shock resistance at low temperature, such as trees , gears, etc.
4. HT150 – Gray Fonte
Examples of applications: gearboxes, machine tools, boxes, hydraulic cylinders, pump body, valves, ruffles of inertia, cylinder heads, pulleys, bearings, etc.
5. 35 – Materials commonly used for various standard parts and fixings
Main characteristics: appropriate resistance, good plasticity, high cold plasticity and acceptable suddenness. This can be partially overwhelming and cold teeage. Low trembability, use after normalization or caliber and income examples of application: suitable for the manufacture of small section parts, parts that can withstand larger loads: such as crankshaft, levers, connecting rods, sleeves, etc. , fixations.
6. 65mn – Steel with routinely used
Examples of application: Various flat and small springs of small size, seat springs, spring springs, spring rings, valve springs, clutch valves, brake springs, cold -laminated helicoid springs, Circlips, etc.
7. 0CR18NI9 – The most commonly used stainless steel (American steel number 304, Japanese steel number Sus304)
Characteristics and applications: It is the most widely used stainless steel as heat resistant steel, such as food equipment, general chemical equipment and industrial energy equipment.
8. CR12 – Steel for commonly used cold work matrices (American steel number D3, Japanese steel number SKD1)
Characteristics and applications: Steel CR12 is a steel for widely used cold work matrices, which is a high -cost lédéburite steel with carbon and chrome. This steel has good dipability and good resistance to wear; Because the carbon content of steel CR12 reaches 2.3 %, it has a bad tentacity in shocks, is subject to fragility and is likely to form uneven eutectic carbides. Steel CR12 has good wear; Resistance, mainly used to make cold punching matrices, punctures, cutting matrices, cold strike matrices, cold extrusion matrices, drilling sleeves, gauges, trefing matrices and Waving matrices which require high resistance to wear and tear and are subject to low impact loads, wires. Rolling plates, stretch matrices and cold pressing matrices for powders’ metallurgy, etc.
9. DC53 – Steel for commonly used cold work matrices imported from Japan
Characteristics and applications: Steel for cold work matrices with high resistance and tenacity, shade of steel produced by the Japanese company Datong Special Steel Co., Ltd. After returning to high temperature, it has high hardness, high tenacity and good wire cutting properties. Used for cold precision stamping matrices, stirring matrices, wire rolling matrices, cold cutting matrices, punches, etc. 10. SM45 – Ordinary carbon plastic mold steel (Japanese steel number S45C)
10. DCCR12MOV – Chrome resistant chromed steel
Domestic. It has a lower carbon content than that of CR12 steel, and with the addition of MO and V, the irregularity of the carbides has been improved. MO can reduce the segregation of carbon and improve soaking, and V can refine grains and increase tenacity. Trembability, the transverse section can be completely hardened below 400 mm and can always maintain good hardness and wear resistance to 300 ~ 400 ℃, which is better than CR1 2. It has high tenacity, a low change of volume during the caliber, high resistance to wear and good complete mechanical properties. Consequently, it can make various molds with large transversal sections, complex forms and withstand significant impacts, such as ordinary jaming matrices. Matrices, stamping matrices, cutting matrices, cutting up matrices, rolling matrices, treading matrices, cold extrusion matrices, cold cutting scissors, circular saws, standard tools, measurement tools, etc.
11. SKD11 —— Resistant chrome acier
Produced by Hitachi Co., Ltd. in Japan. It technically improves the steel flow structure and refines the grains. Compared to the CR12MOV, its tenacity and its wear resistance are improved.
12. D2—— Acier for cold work with high carbon and chrome content
Made in the United States. It has a trembability, a dipability, high wear resistance, good resistance to high temperature oxidation, good rust resistance after quenching and polishing and a small deformation by thermal treatment. It is suitable for the manufacture of various cold work molds which require high precision. And long service life, cutting tools and measurement tools, such as stretch matrices, cold extrusion matrices, cold shear knives, etc.
13. SKD11 (SLD) – Steel with high content in deformation resistant
Produced by Hitachi Co., Ltd., Japan as the MO and V content in steel increases, the steel flow structure is improved, the grains are refined and the morphology of the carbide is improved. Consequently, the resistance and tenacity (. The resistance to flexion, the deflection, the tenacity to shocks) of this steel are etc.) is greater than SKD1, D2, the resistance to wear is also increased and its resistance In income is higher. The practice has proven that the lifespan of this steel mold is improved. CR12MOV. It is often used to make molds with high requirements, such as stretch matrices, percussion molds, etc.
14. DC53 —— Acier with high chrome content with high tenacity
Produced by Daido Co., Ltd. in Japan. The hardness of the heat treatment is greater than SKD11. After income at high temperature (520-530), it can reach a high hardness of 62-63hrc exceeding SKD11 in terms of resistance and. wear resistance. Tenacity is twice that of SKD11. The tenacity of the DC53 is cold. There are few cracks and cracks in the manufacture of the mold. The lifespan is greatly improved. The residual constraint is reduced after a high temperature, because the cutting and grinding properties exceed SKD11. .Utilized for precision stamping matrices, cold forgeing, deep ki -cutting matrices, etc.
15. SKH-9 —— RAPS RAPP for general use with wear resistance and high tenacity
Produced by Hitachi Co., Ltd. of Japan. Used for cold forging matrices, band cutting machines, forests, bores, punches, etc.
16. ASP-23 —— Quick steel for powders metallurgy
Made in Sweden. The distribution of the carbide is extremely uniform, resistant to wear, high tenacity, easy to treat and dimensional stable after heat treatment. Used for various long -term cutting tools such as punches, deep stamping matrices, drilling matrices, strawberries. and shear blades.
17. P20 —— – Large and small plastic chips generally required
Made in the United States. It can be used by electric corrosion. He is pre-duties at HB270-300 in the factory state.
18. 718 —— Plastic, large and small, highly requested
Made in Sweden. Especially for electrical corrosion operations. HB290-330 pre-ducie in the factory HB290-330.
19. NAK80 – high mirror surface, high precision plastic mold
Produced by Daido Co., Ltd. in Japan. Pre-with in the HB370-400 factory. HRC52 quenching hardness.
20. S136 – Molding plastic mold and mirror polished
Made in Sweden. Pre-with the HB factory ＜ 215. HRC52 quenching hardness.
21. H13 —— – Pressure molds commonly used
Used for aluminum, zinc, magnesium and alloys pressure molding.
22. SKD61 —— Deputy molding
Produced by Hitachi Co., Ltd. In Japan, with the technology of redissolution of the electric ballast, the lifespan is considerably improved compared to the hot stamping matrix H13, at the aluminum extrusion matrix.
23. 8407 —— – Advanced pressure molding
Made in Sweden. Warm stamp matrices, aluminum extrusion matrices.
24. FDAC – Addition of sulfur to improve machinability
The pre-with the factory’s hardness is 338-42hrc, which can be directly carved and treated without caliber or income. It is used for small lots, simple molds, various resin products, sliding parts and mold parts with short delivery times. Mussels, glasses frame mold.
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