High heat-intensity hot-work die steel material
A hot work die steel, high heat technology, applied in the direction of manufacturing tools, heat treatment equipment, heat treatment process control, etc., can solve the application field limitations, poor thermal fatigue resistance, limited life and other problems, to improve the structure and composition, Excellent thermal fatigue performance, reducing the effect of component segregation
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[0038] In the present embodiment, the composition and weight percentage of the die steel that adopts are as follows:
[0039] Cr 3.64%
[0040] Mo 2.32%
[0041] V 1.29%
[0042] W 1.29%
[0043] Mn 0.36%
[0044] Ni 0.15%
[0045] C 0.32%
[0046] Si 0.27%
[0047] S 0.002%
[0048] P 0.01%
[0049] Fe balance
[0050] Process and steps in the present embodiment are as follows:
[0051] (1) Melting: smelting according to the traditional conventional method, placing the batch material according to the above formula in an intermediate frequency induction furnace, and smelting at a temperature above 1500°C; then casting the ingot, and entering the next step for use;
[0052] (2) Electroslag remelting: use electric current to generate resistance heat through the electroslag layer to melt the alloy base material of the consumable electrode. The liquid metal falls in the form of molten droplets through the slag layer into the metal molten pool in the water-cooled crystall...
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