A kind of preparation method of high yield strength and high elongation steel and steel
A technology with high elongation and high yield, applied in the field of metal material processing and forming, can solve the problems of high elongation without yield strength, etc., and achieve the effect of highlighting substantive characteristics, rapid and accurate forming
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Embodiment 1
[0036] A preparation method of high yield strength and high elongation steel, which comprises the following steps:
[0037] S1: Add the alloy raw material to the arc melting furnace protected by vacuum argon gas to smelt the alloy. The mass percentage of each component of the alloy raw material is C: 1%, Cu: 1%, Mn: 22%, P: 0.005%, s: 0.005%, the balance is Fe, the smelting temperature is 1550 ℃, and the refining agent and slag remover need to be added during the smelting process;
[0038]S2: The obtained alloy ingot is heated to 1100°C for solution treatment, kept for 12 hours, and then quenched. The surface of the solution-treated ingot is machined to remove the surface layer with a thickness of 2 mm to ensure complete decarburization of the surface. remove;
[0039] S3: Coat the surface of the machined ingot with an anti-decarburization coating with a thickness of 0.1 mm and place the ingot in a holding furnace for 1 hour at a holding temperature of 1100°C. It is placed i...
Embodiment 2
[0045] A preparation method of high yield strength and high elongation steel, which comprises the following steps:
[0046] S1: The alloy raw material is added to the arc melting furnace protected by vacuum argon gas to smelt the alloy. The mass percentage of each component of the alloy raw material is C: 0.8%, Cu: 2.5%, Mn: 25%, P: 0.003%, s: 0.004%, the balance is Fe, the smelting temperature is 1650 ℃, and the refining agent and slag remover need to be added in the smelting process;
[0047] S2: The obtained alloy ingot is heated to 1100°C for solution treatment, kept for 18h, and then quenched. The surface of the solution-treated ingot is machined to remove the surface layer with a thickness of 1.5 mm to ensure the surface decarburization layer. completely removed;
[0048] S3: Coat the surface of the machined ingot with an anti-decarburization coating with a thickness of 0.3 mm and place the ingot in a holding furnace for 2 hours at a holding temperature of 1100°C. It i...
Embodiment 3
[0054] A preparation method of high yield strength and high elongation steel, which comprises the following steps:
[0055] S1: The alloy raw material is added to the arc melting furnace protected by vacuum argon gas to smelt the alloy. The mass percentage of each component of the alloy raw material is C: 1%, Cu: 3%, Mn: 25%, P: 0.004%, s: 0.004%, the balance is Fe, the smelting temperature is 1600 ℃, and the refining agent and slag remover need to be added during the smelting process;
[0056] S2: The obtained alloy ingot is heated to 1100°C for solution treatment, kept for 24 hours, and then quenched. The surface of the solution-treated ingot is machined to remove the surface layer with a thickness of 2 mm to ensure the complete surface decarburization layer. remove;
[0057] S3: Coat the surface of the machined ingot with an anti-decarburization coating with a thickness of 0.2 mm and place the ingot in a holding furnace for 3 hours at a holding temperature of 1100°C. It i...
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