Low-carbon, corrosion-resisting, high-strength and wear-resisting steel ball and preparation method thereof
A high-strength wear-resistant steel, corrosion-resistant technology, applied in the direction of manufacturing tools, heat treatment equipment, furnace types, etc., can solve the problem of restricting the use of wear-resistant steel balls, reducing the toughness and corrosion resistance of wear-resistant steel balls, and reducing wear-resistant steel balls. Ball hardness, strength and other issues
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Embodiment 1
[0017] A low-carbon corrosion-resistant high-strength wear-resistant steel ball, the weight percentage of each component is as follows: C: 0.15%, Si: 1.1%, Mn: 1.7%, Cr: 8%, Ni: 0.25%, Mo: 0.23 %, Al: 0.12%, B: 0.02%, Ti: 0.05%, Nb: 0.08%, V: 0.399%, and the remainder is Fe.
[0018] The preparation method of the above-mentioned low-carbon corrosion-resistant high-strength wear-resistant steel ball comprises the following steps:
[0019] S1. Casting: smelting scrap steel, adding carbon, silicon, manganese, chromium, nickel, molybdenum, aluminum, boron, titanium, niobium, vanadium, refining, casting out of the furnace, and air cooling to obtain a spherical casting that meets the above ingredients;
[0020] S2. Heat treatment: Take the spherical casting obtained in S1, raise the temperature to 981°C, keep it warm for 1.5h, quench it with water, cool it to room temperature, raise the temperature to 755°C, keep it warm for 2h, cool it to room temperature, then raise the temperatur...
Embodiment 2
[0022] A low-carbon corrosion-resistant high-strength wear-resistant steel ball, the weight percentage of each component is as follows: C: 0.1%, Si: 1.2%, Mn: 1.5%, Cr: 9%, Ni: 0.2%, Mo: 0.25 %, Al: 0.1%, B: 0.03%, Ti: 0.04%, Nb: 0.1%, V: 0.55%, and the remainder is Fe.
[0023] The preparation method of the above-mentioned low-carbon corrosion-resistant high-strength wear-resistant steel ball comprises the following steps:
[0024] S1. Casting: smelting scrap steel, adding carbon, silicon, manganese, chromium, nickel, molybdenum, aluminum, boron, titanium, niobium, vanadium, refining, casting out of the furnace, and air cooling to obtain a spherical casting that meets the above ingredients;
[0025] S2. Heat treatment: Take the spherical casting obtained in S1, heat it up to 953°C, keep it warm for 1h, and after quenching with water, cool it to room temperature at a rate of 6°C / s, heat it up to 775°C at a rate of 8°C, keep it warm for 3h, and cool to room temperature, then r...
Embodiment 3
[0027] A low-carbon corrosion-resistant high-strength wear-resistant steel ball, the weight percentage of each component is as follows: C: 0.2%, Si: 1%, Mn: 2%, Cr: 7%, Ni: 0.3%, Mo: 0.2 %, Al: 0.14%, B: 0.01%, Ti: 0.06%, Nb: 0.05%, V: 0.225%, and the remainder is Fe.
[0028] The preparation method of the above-mentioned low-carbon corrosion-resistant high-strength wear-resistant steel ball comprises the following steps:
[0029] S1. Casting: smelting scrap steel, adding carbon, silicon, manganese, chromium, nickel, molybdenum, aluminum, boron, titanium, niobium, vanadium, refining, casting out of the furnace, and air cooling to obtain a spherical casting that meets the above ingredients;
[0030] S2. Heat treatment: Take the spherical casting obtained in S1, heat it up to 1017°C, keep it warm for 2 hours, quench it with water, cool it to room temperature at a rate of 4°C / s, heat it up to 726°C at a rate of 10°C, keep it warm for 1 hour, and cool to room temperature, then ra...
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