Method for levelling metal plate with stress deformation by utilizing vacuum annealing
A technology of stress deformation and metal plate, which is applied in the field of annealing and leveling of metal plates with stress deformation, can solve the problems of low leveling accuracy and limited leveling effect, and achieve the advantages of simple equipment, shortened production cycle and reduced production cost Effect
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[0020] Example
[0021] For a low carbon steel sheet with a thickness of 20 mm and a winding degree of 8 mm, the method of the present invention is used for leveling by vacuum annealing. The annealing conditions are three hours at 800°C.
[0022] Such as figure 2 , Place the low carbon steel plate 1 to be leveled in the fixture 2, set a sealed air bag 3 on the low carbon steel plate 1, and the elastic thin wall 4 of the air bag 3 contacts the low carbon steel plate 1 to be leveled. The air bag 3 is fastened with the low carbon steel plate 1 to be leveled with a clamp, and placed in the vacuum annealing furnace 8, vacuumed and heated for annealing. The gas in the air bag 3 will increase the temperature to make the elastic thin wall 4 The low carbon steel sheet 1 to be leveled is expanded, and the low carbon steel sheet 1 is leveled while being annealed.
[0023] The fixture 2 is as image 3 As shown, the upper cover plate 5 and the lower cover plate 6 are included. The lower cover ...
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