1. Overview of the production line This series of production lines is mainly composed of carburizing furnace main furnace, quenching oil tank, cleaning machine, high temperature and low temperature tempering furnace, quenching water tank, slow cooling furnace, loading and unloading tongs, tool......
Read More1. The quality of heat treatment of aluminum extrusion die directly affects the service life of the extrusion die. The die is quenched and tempered “+” multiple times to meet the hardness requirements. Quenching is to improve the hardness of the mold, and multiple tempering is to i......
Read MoreIn order to improve the practical effect of stress relief annealing, the heating temperature should preferably reach the last complete unloading temperature of the casting. Below the last complete unloading temperature, the higher the heating temperature, the more sufficient the stress relief ......
Read More1. Technical requirements: Quenching temperature, 850 degrees, holding for 2 hours, water cooling, tempering temperature 530 degrees, tempering time 3.5 hours. The number of planet carriers per furnace is 48 pieces, and the average single piece weight is 12KG. 2. Furnace design: Quenching fur......
Read MoreIn this paper, the effect of heat treatment process on the microstructure and mechanical properties of 2Cr12NiMoWV steel was studied. The results show that when the steel is quenched at 1055-1070 ℃ and tempered at 700-710 ℃, good strengthening and toughening effect can be obtained. And on this......
Read More1. Visual inspection The surface of the workpiece treated by QPQ should be black or blue-black. The appearance of a commodity workpiece should be inspected according to relevant product standards and process documents. For example, a commercial metal cutting tool requires an appearance inspect......
Read More1. Process Loadingbasket→degreasing cleaning→rinsing→preheating→nitriding→air cooling→oxidation→hot water cleaning→clean water rinsing→dehydration and drying→rough polishing→fine polishing→loading basket→preheating→oxidation→hot water cleaning→ Rinse with clean wate→dehydration and drying→fine......
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