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钢模具使用最广泛的钢种之一，属合金结构钢
钢模具使用最广泛的钢种之一，属合金结构钢
Steel mould is one of the most widely used steel types, which belongs to alloy structural steel
主要特征: 经调质处理后，具有良好的综合力学性能、低温冲击韧度及低的缺口敏感性，淬透性良好，油冷时可得到较高的疲劳强度，水冷时复杂形状的零件易产生裂纹，冷弯塑性中等，回火或调质后切削加工性好，但焊接性不好，易产生裂纹，焊前应预热到100～150℃，一般在调质状态下使用，还可以进行碳氮共渗和高频表面淬火处理。应用举例:调质处理后用于制造中 速、中载的零件，如机床齿轮、轴、蜗杆、花键轴、顶针套等，调质并高频表面淬火后用于制造表面高硬度、耐磨的零件，如齿轮、轴、主轴、曲轴、心轴、套筒、销子、连杆、螺钉螺母、进气阀等，经淬火及中温回火后用于制造重载、中速冲击的零件，如油泵转子、滑块、齿轮、主轴、套环等，经淬火及低温回火后用于制造重载、低冲击、耐磨的零件，如蜗杆、主轴、轴、套环等，碳氮共渗处即后制造尺寸较大、低温冲击韧度较高的传动零件，如轴、齿轮等。
Main features: After quenching and tempering, it has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, high fatigue strength can be obtained when oil cooling. When water cooling, parts with complex shape are easy to crack, and cold bending plasticity is medium. After tempering or quenching and tempering, the machinability is good, but the weldability is not good, and cracks are easy to occur. Preheat to 100 ~ 150 ℃ before welding It can also be used for carbonitriding and high frequency surface quenching. Application example: after quenching and tempering, it is used in manufacturing High speed and medium load parts, such as gear, shaft, worm, spline shaft and thimble sleeve of machine tools, are used to manufacture parts with high hardness and wear resistance after quenching and high frequency surface quenching, such as gears, shafts, spindles, crankshafts, sleeves, pins, connecting rods, screws and nuts, intake valves, etc. after quenching and tempering at medium temperature, they are used to manufacture heavy load and medium speed impact parts, such as oil pump After quenching and low temperature tempering, they are used to manufacture heavy load, low impact and wear-resistant parts, such as worm, spindle, shaft, sleeve ring, etc. transmission parts with large size and high low-temperature impact toughness are manufactured at carbonitriding place, such as shaft and gear.
Steel mould is one of the most widely used steel types, which belongs to alloy structural steel
主要特征: 经调质处理后，具有良好的综合力学性能、低温冲击韧度及低的缺口敏感性，淬透性良好，油冷时可得到较高的疲劳强度，水冷时复杂形状的零件易产生裂纹，冷弯塑性中等，回火或调质后切削加工性好，但焊接性不好，易产生裂纹，焊前应预热到100～150℃，一般在调质状态下使用，还可以进行碳氮共渗和高频表面淬火处理。应用举例:调质处理后用于制造中 速、中载的零件，如机床齿轮、轴、蜗杆、花键轴、顶针套等，调质并高频表面淬火后用于制造表面高硬度、耐磨的零件，如齿轮、轴、主轴、曲轴、心轴、套筒、销子、连杆、螺钉螺母、进气阀等，经淬火及中温回火后用于制造重载、中速冲击的零件，如油泵转子、滑块、齿轮、主轴、套环等，经淬火及低温回火后用于制造重载、低冲击、耐磨的零件，如蜗杆、主轴、轴、套环等，碳氮共渗处即后制造尺寸较大、低温冲击韧度较高的传动零件，如轴、齿轮等。
Main features: After quenching and tempering, it has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, high fatigue strength can be obtained when oil cooling. When water cooling, parts with complex shape are easy to crack, and cold bending plasticity is medium. After tempering or quenching and tempering, the machinability is good, but the weldability is not good, and cracks are easy to occur. Preheat to 100 ~ 150 ℃ before welding It can also be used for carbonitriding and high frequency surface quenching. Application example: after quenching and tempering, it is used in manufacturing High speed and medium load parts, such as gear, shaft, worm, spline shaft and thimble sleeve of machine tools, are used to manufacture parts with high hardness and wear resistance after quenching and high frequency surface quenching, such as gears, shafts, spindles, crankshafts, sleeves, pins, connecting rods, screws and nuts, intake valves, etc. after quenching and tempering at medium temperature, they are used to manufacture heavy load and medium speed impact parts, such as oil pump After quenching and low temperature tempering, they are used to manufacture heavy load, low impact and wear-resistant parts, such as worm, spindle, shaft, sleeve ring, etc. transmission parts with large size and high low-temperature impact toughness are manufactured at carbonitriding place, such as shaft and gear.
