A semi-etched precision stainless steel strip for the communication industry, its production process and its application
A technology for stainless steel strips and production processes, applied in tension/pressure control, roll speed control, metal rolling, etc., to solve problems such as scrap parts, serious deformation of precision stainless steel strips, and inability to fully meet the requirements of precision stainless steel parts production.
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Embodiment 1
[0097] In this example, the selected grade is the surface of SUS304 cold-rolled raw material coil 2B, with a thickness of 0.60mm and a width of 400mm. Requirements for finished steel strips: thickness 0.30mm, width 125+125+128 each, tensile strength ≥ 930Mpa, Vickers hardness HV310-370, elongation ≥ 3%, semi-etched without deformation.
[0098] (1) First select SUS304 cold-rolled raw material coil, the surface is in 2B state, chemical composition: carbon (C) 0.05%, silicon (Si) 0.41%, manganese (Mn) 1.3%, phosphorus (P) 0.045%, sulfur (S ) 0.028%, nickel (Ni) 8.03%, chromium (Cr) 18.1%, copper (Cu) 0.13%, nitrogen (N) 0.029%, molybdenum (Mo) 0.01%.
[0099] (2) For stainless steel cold-rolled raw material coils with a thickness of 0.60mm, use Sendzimir 20-high rolling mill for semi-finish rolling, and use Guohong Lubricating Oil (China) Co., Ltd. model DN.STAINLESS ROLL P-T mineral rolling during rolling The oil is lubricated and cooled, and the oil temperature is controlled ...
Embodiment 2
[0115] In this example, the cold-rolled raw material coil of brand SUS304 is selected, the surface is in 2B state, the thickness is 0.90mm, the width is 400mm, the thickness of the finished steel strip is 0.50mm, the coil degree is 128+128+125mm each, and the tensile strength is ≥930Mpa. Vickers hardness HV310 ~ 370, elongation ≥ 3%, half-etching requires no deformation.
[0116] (1) First select SUS304 cold-rolled stainless steel raw material coil, the surface is in 2B state. Chemical composition: with embodiment 1.
[0117] (2) For the stainless steel cold-rolled raw material coils with a thickness of 0.90mm, a 20-roll Sendzimir rolling mill is used for semi-finish rolling. During rolling, the model DN.STAINLESS ROLL OIL P—T mineral rolling oil produced by Guohong Lubricating Oil (China) Co., Ltd. is used for lubrication and cooling. The oil temperature is controlled at 50°C during rolling, and the hardness of the work roll surface is selected. It is HRC62, the surface rou...
Embodiment 3
[0133] In this example, the cold-rolled raw material coil of brand SUS304 is selected, the surface is in 2B state, its thickness is 1.50mm, and its width is 400mm. Vickers hardness HV310 ~ 370, elongation ≥ 3%, half-etching requires no deformation.
[0134] (1) First select SUS304 cold-rolled stainless steel raw material coil, the surface is in 2B state. Chemical composition: with embodiment 1.
[0135] (2) For the stainless steel cold-rolled raw material coils with a thickness of 1.50mm, a 20-roller Sendzimir is used for semi-finish rolling. During rolling, the model DN.STAINLESS ROLL OIL P—T mineral rolling oil produced by Guohong Lubricating Oil (China) Co., Ltd. is used for lubrication and cooling. The oil temperature is controlled at 30°C during rolling, and the hardness of the work roll surface is selected. It is HRC61, the surface roughness of the roll is controlled at Ra0.10μm, and the shape control roll is selected with a cone length of 270mm and a taper of 1 / 850. ...
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