Method for reducing residual stress of stainless steel power distribution cabinet processing material
A technology for processing materials and residual stress, applied in the direction of improving process efficiency, etc., can solve the problems of affecting the dimensional stability of components, reducing the mechanical properties of power distribution cabinets, and affecting fatigue life, etc. The effect of improving toughness and improving overall performance
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Embodiment 1
[0014] A method for reducing the residual stress of processed materials for stainless steel power distribution cabinets, comprising: melting the processed stainless steel materials in a vacuum induction furnace, pouring them into ingots, performing alloy forging, heating at 1190°C, and holding for 100 minutes to obtain a green body, which will be prepared The obtained titanium-based composite powder is evenly coated on the surface of the green body, and then hot-rolled. Inject nitrogen, the flow rate of nitrogen gas is 60 cubic meters per hour, and the surface of the hot-rolled steel plate is quickly cleaned with concentrated hydrochloric acid with a concentration of 8.2 mol / liter at 20°C for 40 seconds, and then rinsed twice with clean water. Finally, put the steel plate in a preheated vacuum furnace at 600°C, raise the temperature to 1030°C at a rate of 7°C / min, keep it warm for 22 minutes, carry out stress relief, and carry out cold rolling after coming out of the furnace. ...
Embodiment 2
[0021] A method for reducing the residual stress of processed materials for stainless steel power distribution cabinets, comprising: melting the processed stainless steel materials in a vacuum induction furnace, pouring them into ingots, performing alloy forging, heating at 1200°C, and holding the heat for 110 minutes to obtain a green body, which will be prepared The obtained titanium-based composite powder is evenly coated on the surface of the green body, and then hot-rolled. Inject nitrogen, the flow rate of nitrogen gas is 62 cubic meters per hour, and the surface of the hot-rolled steel plate is quickly cleaned with concentrated hydrochloric acid with a concentration of 8.4 mol / liter at 22 °C for 42 seconds, and then rinsed twice with clean water. Finally, place the steel plate in a preheated vacuum furnace at 630°C, raise the temperature to 1040°C at a rate of 7.5°C / min, keep it warm for 24 minutes, and perform stress relief. The plate with the required thickness is obt...
Embodiment 3
[0028] A method for reducing the residual stress of processed materials for stainless steel power distribution cabinets, comprising: melting the processed stainless steel materials in a vacuum induction furnace, pouring them into ingots, performing alloy forging, heating at 1220°C, and holding for 120 minutes to obtain a green body, which will be prepared The obtained titanium-based composite powder is evenly coated on the surface of the green body, and then hot-rolled. Inject nitrogen, the flow rate of nitrogen is 65 cubic meters per hour, and the surface of the hot-rolled steel plate is quickly cleaned with concentrated hydrochloric acid with a concentration of 8.6 mol / liter at 25 °C for 45 seconds, and then rinsed with water for 3 times. Finally, place the steel plate in a preheated vacuum furnace at 660°C, raise the temperature to 1050°C at a rate of 8°C / min, keep it warm for 26 minutes, and perform stress relief. The plate with the required thickness is obtained, placed i...
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