Machining technology of cold rolled alloy flat steel
A processing technology and technology of alloy steel, which is applied in the field of steel processing, can solve problems such as rise, decrease of ductility and plastic index, and deterioration of stamping performance, and achieve the effects of fast forming, increased yield point, and fast speed
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Embodiment 1
[0016] A kind of processing technology of cold-rolled alloy flat steel of the present embodiment, comprises the following steps:
[0017] (1) Heat treatment: check the alloy steel raw material, the carbon content of the raw material is 1.9%, heat treatment for the qualified raw material, control the quenching temperature to 830°C, the tempering temperature to 420°C, and the quenching oil temperature to 45°C;
[0018] (2) Shot blasting: Shot blasting is performed on the oxide layer on the surface of the steel, and a projectile with a diameter of 3.5mm is thrown towards the surface of the workpiece to make the surface of the workpiece reach a certain degree of roughness;
[0019] (3) Cold rolling: the steel is pickled, rolled, degreased, annealed and finished in sequence, and the thickness of the steel after cold rolling is 20mm;
[0020] (4) Phosphorus saponification treatment: Phosphate the cold-rolled steel first, and then perform saponification treatment. After the saponific...
Embodiment 2
[0026] A kind of processing technology of cold-rolled alloy flat steel of the present embodiment, comprises the following steps:
[0027] (1) Heat treatment: check the alloy steel raw materials, the carbon content of the raw materials is 1.5%, heat treatment for qualified raw materials, control the quenching temperature to 80°C, the tempering temperature to 400°C, and the quenching oil temperature to 20°C;
[0028] (2) Shot blasting: Shot blasting is performed on the oxide layer on the surface of the steel, and a projectile with a diameter of 2.5mm is thrown towards the surface of the workpiece to make the surface of the workpiece reach a certain degree of roughness;
[0029] (3) Cold rolling: the steel is pickled, rolled, degreased, annealed and finished in sequence, and the thickness of the steel after cold rolling is 10mm;
[0030] (4) Phosphorus saponification treatment: Phosphate the cold-rolled steel first, and then perform saponification treatment. After the saponificat...
Embodiment 3
[0036] A kind of processing technology of cold-rolled alloy flat steel of the present embodiment, comprises the following steps:
[0037] (1) Heat treatment: check the alloy steel raw materials, the carbon content of the raw materials is 2.3%, heat treatment for qualified raw materials, control the quenching temperature to 840°C, the tempering temperature to 450°C, and the quenching oil temperature to 60°C;
[0038] (2) Shot blasting: Shot blasting is performed on the oxide layer on the surface of the steel, and a projectile with a diameter of 5.0mm is thrown towards the surface of the workpiece to make the surface of the workpiece reach a certain degree of roughness;
[0039] (3) Cold rolling: the steel is pickled, rolled, degreased, annealed and finished in sequence, and the thickness of the steel after cold rolling is 30mm;
[0040] (4) Phosphorus saponification treatment: Phosphate the cold-rolled steel first, and then perform saponification treatment. After the saponifica...
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