Press roll for pressing secondary battery electrode and producing process thereof
A secondary battery, pressing roller technology, applied in the direction of electrode manufacturing, process efficiency improvement, energy efficiency improvement, etc., can solve the problems affecting the internal quality of the battery, the non-uniformity of the pole piece pressing, increasing the use cost, etc., to reduce the roller Consumption and use costs, increased hardness, and the effect of prolonging service life
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Embodiment 1
[0019] (1) Molding: select electroslag remelted steel ingots containing 0.97% molybdenum, 1.63% chromium, 2.15% nickel, 1.05% silicon, 1.50% manganese, 2.20% tungsten and 0.30% lanthanide rare earth alloy, and the rest is iron. Base material, the unit is percentage by weight, the same below; when the base material is heated to 1000~1050°C, it is forged with a 400T hydraulic press and finally forged into a roller blank with a diameter of 300mm; put the roller blank into the well Carry out spheroidization heat treatment in a type furnace, and fill with protective gas propane when the temperature rises to 580 °C. When the furnace temperature reaches 730°C, keep it warm for 4 hours, and then cool down with the furnace. After reaching room temperature, carry out rough turning machining, leaving a finishing allowance of 0.5mm. Then carry out preheating treatment in the pit furnace, heat it up to 950°C for 5 minutes and carry out oil cooling, take out the roller blank for air coolin...
Embodiment 2
[0023] (1) Molding: choose carbon 0.75%, molybdenum 0.60%, chromium 0.80%, nickel 0.85%, silicon 0.70%,
[0024] 0.95% manganese, 3.5% tungsten, 0.20% lanthanide rare earth alloy, and electroslag remelted steel ingots with the rest being iron as raw materials. Heat the above-mentioned electroslag remelting steel ingot, when heated to 1100~1220°C, press the hydraulic press to form a roller billet, the diameter of the roller billet is 800mm; put the roller billet into the pit furnace for spheroidization heat treatment, heat up When it reaches 580°C, fill it with protective gas methanol; continue heating to 700°C, stop heating, keep it warm for 5 hours, and then cool down with the furnace; after reaching normal temperature, it will be cut and roughed, leaving a finishing allowance of 0.3mm; After the temperature in the pit furnace is raised to 650°C, heat it for 15 minutes and then carry out oil cooling. After the oil is cooled to 600°C, take out the roller blank for air-cooling ...
Embodiment 3
[0028] (1) Molding: choose carbon 1.65%, molybdenum 1.60%, chromium 2.10%, nickel 3.20%, silicon 1.20%,
[0029] Manganese 1.60%, tungsten 5.05%, lanthanide rare earth alloy 0.55%, and electroslag remelted steel ingots with the rest of iron as raw materials. Heat the above-mentioned electroslag remelting steel ingot, when heated to 1000~1220°C, forge and press into a roller billet with a hydraulic press, the diameter of the roller billet is 1000mm; put the roller billet into the pit furnace for spheroidization heat treatment, heat up When it reaches 580°C, fill it with protective gas methanol; continue heating to 800°C, stop heating, keep it warm for 2 hours, and then cool down with the furnace; after reaching normal temperature, it will be cut and roughed, leaving a finishing allowance of 0.3mm; After the temperature in the well-type furnace is raised to 950°C, heat it for 5 minutes and then carry out oil cooling. After the oil is cooled to 700°C, take out the roller blank fo...
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