Heat treatment induction hardening technique for sprocket wheel
An induction hardening and process technology, which is applied in heat treatment furnaces, heat treatment equipment, quenching agents, etc., can solve the problems of short product life, complicated heat treatment process, and inconspicuous energy-saving effect, so as to prolong the service life, improve hardness, and save energy. Effect
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Embodiment 1
[0017] A sprocket heat treatment induction hardening process, the process steps are as follows:
[0018] A. Check whether the workpiece has cracks, bruises and other defects, and install the furnace;
[0019] B. Send the workpiece into the washing machine for drying, the time is 1min;
[0020] C. Carry out induction heating, the heating time is 6s, the power of the quenching machine is set to 60%, the current is 500A, the quenching stop position is 1.00mm, the cooling position is 200mm, the speed is 600mm / min, quenching and cooling with HX-200 medium, and the spray method is used cooling down;
[0021] D. Send the quenched workpiece into the washing machine to wash and dry for 1min;
[0022] E Temper the dried workpiece immediately, set the temperature at 200°C, and hold the holding time for 2 hours;
[0023] F. After cooling with cooling medium, check the metallographic structure according to the standard, and test the hardness of the product;
[0024] G. Soak the workpie...
Embodiment 2
[0026] A sprocket heat treatment induction hardening process, the process steps are as follows:
[0027] A. Check whether the workpiece has cracks, bruises and other defects, and install the furnace;
[0028] B. Send the workpiece into the washing machine for drying, the time is 2min;
[0029] C. Carry out induction heating, the heating time is 8s, the power of the quenching machine is set to 60%, the current is 500A, the quenching stop position is 1.00mm, the cooling position is 200mm, the speed is 600mm / min, quenching and cooling with HX-200 medium, using the spray method cooling down;
[0030] D. Send the quenched workpiece into the cleaning machine for cleaning and drying for 2 minutes;
[0031] E Temper the dried workpiece immediately, set the temperature to 190°C, and hold the holding time for 3 hours;
[0032] F. After cooling with cooling medium, check the metallographic structure according to the standard, and test the hardness of the product;
[0033] G. Soak the...
Embodiment 3
[0035] A sprocket heat treatment induction hardening process, the process steps are as follows:
[0036] A. Check whether the workpiece has cracks, bruises and other defects, and install the furnace;
[0037] B. Send the workpiece into the washing machine for drying, the time is 2min;
[0038] C. Carry out induction heating, the heating time is 7s, the power of the quenching machine is set to 60%, the current is 500A, the quenching stop position is 1.00mm, the cooling position is 200mm, the speed is 600mm / min, quenching and cooling with HX-200 medium, and the spray method is used cooling down;
[0039] D. Send the quenched workpiece into the washing machine to wash and dry for 1min;
[0040] E Temper the dried workpiece immediately, set the temperature at 200°C, and hold the holding time for 2.5h;
[0041] F. After cooling with cooling medium, check the metallographic structure according to the standard, and test the hardness of the product;
[0042] G. Soak the workpiece ...
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