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A high-molybdenum-nickel-based alloy thin plate with a width ≥ 1000 mm, its manufacturing method and application

A manufacturing method and alloy-based technology, applied in the field of composition and manufacturing of nickel-based corrosion-resistant alloy wide sheets, can solve problems that cannot fully meet the requirements for the use and manufacture of nuclear main pump shielding sleeves, and achieve the promotion of independent construction and improvement Effects of hot workability, improvement of strength and electrical properties

Active Publication Date: 2020-11-20
宝武特种冶金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the C-276 nickel-based corrosion-resistant alloy products and manufacturing technology in the prior art cannot fully meet the requirements for the use and manufacture of nuclear main pump shielding sleeves.

Method used

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  • A high-molybdenum-nickel-based alloy thin plate with a width ≥ 1000 mm, its manufacturing method and application
  • A high-molybdenum-nickel-based alloy thin plate with a width ≥ 1000 mm, its manufacturing method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0073] According to the composition described in this embodiment in Table 2, 7 tons of high-molybdenum-nickel-based alloy flat electrodes were smelted by 12 tons of vacuum induction. An electroslag flat ingot with a thickness of 320 mm, a width of 1190 mm and a length of 1650 mm was obtained by protecting the electroslag remelting furnace with argon gas.

[0074] The electroslag slab is made into a slab after billeting. The slab is rolled in a heating furnace at 1100°C for 3 hours. The rolling temperature is 1060°C, the final rolling temperature is 960°C, and the rolled width is 1070mm. of hot-rolled steel coils.

[0075] The hot-rolled steel coil is cold-rolled in 5 rolling passes, and finally rolled into a cold-rolled steel coil with a width of 1050 mm and a thickness meeting the requirements. Among them, intermediate annealing treatment is required between each rolling pass, and the intermediate annealing treatment temperature is 1120 ° C, and heating is performed for 1.5 ...

Embodiment 2

[0078] According to the composition described in this embodiment in Table 2, 7 tons of high-molybdenum-nickel-based alloy flat electrodes were smelted by 12 tons of vacuum induction. An electroslag flat ingot with a thickness of 350 mm, a width of 1250 mm and a length of 1800 mm was obtained by protecting the electroslag remelting furnace with argon gas.

[0079] Electroslag slabs are made into slabs after blanking. The slabs are rolled out of the furnace after being kept at 1180°C for 4.5 hours in a heating furnace. 1220mm hot rolled steel coil.

[0080] The hot-rolled steel coil is cold-rolled through 6 rolling passes, and finally rolled into a cold-rolled steel coil with a width of 1120 mm and a thickness meeting the requirements. Among them, intermediate annealing treatment is required between each rolling pass. The intermediate annealing treatment temperature is 1180 ° C, and the heating is 2.2 minutes per millimeter. The rolling deformation rate of the final rolled pro...

Embodiment 3

[0083] According to the composition described in this embodiment in Table 2, 7 tons of high-molybdenum-nickel-based alloy flat electrodes were smelted by 12 tons of vacuum induction. An electroslag flat ingot with a thickness of 380 mm, a width of 1330 mm and a length of 1950 mm was obtained by protecting the electroslag remelting furnace with argon gas.

[0084] The electroslag slab is made into a slab after billeting, and the slab is rolled out of the furnace after being kept at 1220°C for 5.5 hours in a heating furnace. The rolling temperature is: 1130°C, the final rolling temperature is 990°C, and the rolled width is 1150mm. width of hot-rolled steel coils.

[0085] The hot-rolled steel coil is cold-rolled through 4 rolling passes, and finally rolled into a cold-rolled steel coil with a width of 1050 mm and a thickness meeting the requirements. Among them, intermediate annealing treatment is required between each rolling pass. The intermediate annealing treatment temperat...

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Abstract

The invention provides a high-Mo Ni-based alloy sheet with width larger than or equal to 1000 mm. The alloy comprises components in percentage by weight as follows: 0.006%-0.010% of C, 15.0%-16.5% ofMo, 15.0%-16.5% of Cr, 5.0%-7.0% of Fe, smaller than or equal to 0.05% of Co, 3.0%-4.0% of W, smaller than or equal to 0.10% of V, smaller than or equal to 0.08% of Si, smaller than or equal to 0.8% of Mn, smaller than or equal to 0.01% of P, smaller than or equal to 0.008% of S, 0.10%-0.30% of Al, smaller than or equal to 0.002% of O, 0.001%-0.010% of Mg, 0.001%-0.010% of Ce+La and the balance ofNi and inevitable impurities.

Description

technical field [0001] The invention relates to the technical field related to the manufacture of nickel-based corrosion-resistant alloy plates and strips, in particular to the composition and manufacturing method of a nickel-based corrosion-resistant alloy wide (width ≥ 1000 mm) thin plate with high molybdenum content, which can be used in corrosive environments Harsh nuclear power, petrochemical, paper, environmental protection and other industries. Background technique [0002] Nuclear power is an advanced clean energy, an important part of the national energy strategy, and one of the most important measures to achieve the national energy conservation and emission reduction goals. Nuclear power autonomy will play a positive and effective role in promoting the optimization of my country's energy structure and national energy security. The independent manufacturing of nuclear main pump motors is the key to the development of nuclear power, and the manufacture of key materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22F1/10
CPCC22C19/056C22F1/10
Inventor 徐长征马天军赵欣秦斌李雅范李梦启
Owner 宝武特种冶金有限公司
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