Manufacturing method of fe-36ni invar sheet with low thermal expansion
A technology of fe-36ni and Invar alloys, applied in the field of manufacturing Fe-36Ni Invar alloy sheets, can solve the problems that the yield strength of Fe-36Ni Invar alloys is not given, and achieve easy control of the production process and texture strength Improvement, the effect of low thermal expansion coefficient
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Embodiment 1
[0023] The manufacture method of the Fe-36Ni Invar sheet material of low thermal expansion, comprises the following steps:
[0024] S1. The raw materials of each component of the Invar alloy sheet are smelted in a vacuum melting furnace and cast into ingots. The Invar alloy sheet contains the following components in weight percentages: C0.22%, Mo1.8%, Ti0.1%, and Nb0 .15%, Ni36%, the balance is Fe;
[0025] S2. Electroslag remelting is performed on the smelted ingot, and the P≤0.002%, S≤0.002%, O≤0.0015%, and N≤0.0015% in the ingot are controlled;
[0026] S3. The remelted ingot is forged at high temperature to prepare a slab, and the thickness of the slab is 140mm;
[0027] S4. After the surface of the slab is ground, it is hot-rolled into a plate with a thickness of 9mm in 12 passes on a plate rolling machine. The reduction rate was 7.8%.
[0028] The metallographic structure of the sample that present embodiment obtains, precipitated phase structure, Taylor factor distri...
Embodiment 2
[0030] The manufacture method of the Fe-36Ni Invar sheet material of low thermal expansion, comprises the following steps:
[0031] S1. The raw materials of each component of the Invar alloy sheet are smelted in a vacuum melting furnace and cast into ingots. The Invar alloy sheet contains the following components in weight percentages: C0.22%, Mo1.8%, Ti0.1%, and Nb0 .15%, Ni36%, the balance is Fe;
[0032] S2. Electroslag remelting is performed on the smelted ingot, and the P≤0.002%, S≤0.002%, O≤0.0015%, and N≤0.0015% in the ingot are controlled;
[0033] S3. The remelted ingot is forged at high temperature to prepare a slab, and the thickness of the slab is 140mm;
[0034] S4. After the surface of the slab is ground, it is hot-rolled into a plate with a thickness of 9mm in 13 passes on a plate rolling machine. The reduction ratio was 7.2%.
Embodiment 3
[0036] The manufacture method of the Fe-36Ni Invar sheet material of low thermal expansion, comprises the following steps:
[0037] S1. The raw materials of each component of the Invar alloy sheet are smelted in a vacuum melting furnace and cast into ingots. The Invar alloy sheet contains the following components in weight percentages: C0.22%, Mo1.8%, Ti0.1%, and Nb0 .15%, Ni36%, the balance is Fe;
[0038] S2. Electroslag remelting is performed on the smelted ingot, and the P≤0.002%, S≤0.002%, O≤0.0015%, and N≤0.0015% in the ingot are controlled;
[0039] S3. The remelted ingot is forged at high temperature to prepare a slab, and the thickness of the slab is 140mm;
[0040] S4. After the surface of the slab is ground, it is hot-rolled into a plate with a thickness of 9mm on a plate rolling machine for 15 passes. The reduction rate was 6.2%.
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Abstract
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