High-stability bainite steel for frog and preparation method thereof
A high-stability, bainite technology, used in manufacturing tools, heat treatment equipment, furnace types, etc., can solve problems such as unfavorable comprehensive performance, increased peeling off blocks, poor stability, etc., to improve wear resistance and contact fatigue resistance, Improve overall performance and increase stability
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Embodiment 1
[0038] The high-stability bainitic frog is made of high-stability bainitic frog steel, and the content of each component of the high-stability bainitic frog steel is shown in Table 1. The frog is prepared as follows:
[0039] 1) According to the formula in Table 1, adopt general smelting methods, smelt molten steel by converter or electric furnace and refine by LF or VD furnace;
[0040] 2) carrying out continuous casting of the steel refined in step 1);
[0041] 3) Rolling and forging the slab obtained in step 2), the rolling heating temperature is 1250°C, and the final rolling temperature is 1000°C; the forging heating temperature is 1250°C, and the final forging temperature is 950°C; After using steel fork, air cool to room temperature;
[0042] 4) The frog steel obtained in step 3) is placed in liquid nitrogen medium for cryogenic treatment, and after being kept warm for 6 hours, it is naturally returned to room temperature after being out of the box; finally, the forgin...
Embodiment 2
[0045] The high-stability bainitic frog is made of high-stability bainitic frog steel, and the content of each component of the high-stability bainitic frog steel is shown in Table 1. The frog is prepared as follows:
[0046] 1) According to the formula in Table 2, adopt general smelting methods, smelt molten steel by converter or electric furnace and refine by LF or VD furnace;
[0047] 2) carrying out continuous casting of the steel refined in step 1);
[0048] 3) Rolling and forging the slab obtained in step 2), the rolling heating temperature is 1200°C, and the final rolling temperature is 950°C; the forging heating temperature is 1200°C, and the final forging temperature is 900°C; After using steel fork, air cool to room temperature;
[0049] 4) The frog steel obtained in step 3) is placed in liquid nitrogen medium for cryogenic treatment, and after 8 hours of heat preservation, it is naturally returned to temperature after being out of the box. Finally, the forging aft...
Embodiment 3
[0051] The high-stability bainitic frog is made of high-stability bainitic frog steel, and the content of each component of the high-stability bainitic frog steel is shown in Table 1. The frog is prepared as follows:
[0052] 1) According to the formula in Table 3, adopt general smelting methods, smelt molten steel by converter or electric furnace and refine by LF or VD furnace;
[0053] 2) carrying out continuous casting of the steel refined in step 1);
[0054] 3) Rolling and forging the slab obtained in step 2), the rolling heating temperature is 1100°C, the final rolling temperature is 900°C; the forging heating temperature is 1150°C, and the final forging temperature is 900°C; After using steel fork, air cool to room temperature;
[0055] 4) The frog steel obtained in step 3) is placed in liquid nitrogen medium for cryogenic treatment, and after 8 hours of heat preservation, it is naturally returned to temperature after being out of the box. Finally, the forging after c...
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