A kind of Hastelloy alloy and carbon steel composite plate and its manufacturing method

A technology of Hastelloy alloy and clad plate, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., to prevent contact, improve crevice corrosion resistance, and avoid the generation of defects

Active Publication Date: 2020-08-18
NANJING YOUTIAN METAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selected nickel-chromium-iron-based alloy can only resist corrosion in reducing environments.

Method used

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  • A kind of Hastelloy alloy and carbon steel composite plate and its manufacturing method
  • A kind of Hastelloy alloy and carbon steel composite plate and its manufacturing method
  • A kind of Hastelloy alloy and carbon steel composite plate and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for manufacturing a Hastelloy and carbon steel clad plate, comprising the following steps:

[0024] 1) Polish the surface of the C-276 Hastelloy alloy with a size of 100mm×120mm×4mm and the carbon steel with a size of 100mm×120mm×8m and wash them with acid to remove surface impurities; wherein, the mass percentage content of the carbon steel is C≤0.22%Mn ≤1.8%Si≤0.6%S≤0.050P≤0.045, the balance is Fe and unavoidable impurity elements; Hastelloy mass percentage content is C≤0.02%, 10%≤Cr≤21%, 13%≤Mo≤ 20%, 3%≤Fe≤9%, 3%≤W≤6%, Si≤0.10%, Co≤3.5%, the balance is Ni and unavoidable impurity elements.

[0025] 2) Apply a release agent between the contact surfaces of the two layers of Hastelloy to make a symmetrical combination of billets, and place the steel plate or billet on the outermost side.

[0026] 3) Add side strips to the combined Hastelloy and carbon steel combined steel billet, use vacuum electron beam welding method to vacuum the combined steel billet with ...

Embodiment 2

[0033] A method for manufacturing a Hastelloy and carbon steel clad plate, comprising the following steps:

[0034] 1) Polish the surface of the C-276 Hastelloy alloy with a size of 150mm×150mm×3mm and the carbon steel with a size of 150mm×150mm×9m, and wash the surface impurities with acid; the mass percentage of the carbon steel is C≤0.22%Mn≤ 1.8%Si≤0.6%S≤0.050P≤0.045, the balance is Fe and unavoidable impurity elements; Hastelloy mass percentage content is C≤0.02%, 10%≤Cr≤21%, 13%≤Mo≤20 %, 3%≤Fe≤9%, 3%≤W≤6%, Si≤0.10%, Co≤3.5%, and the balance is Ni and unavoidable impurity elements.

[0035] 2) Apply a release agent between the contact surfaces of the two layers of Hastelloy to make a symmetrical combination of billets, and place the steel plate or billet on the outermost side.

[0036] 3) Add side strips to the combined Hastelloy and carbon steel combined steel billet, use vacuum electron beam welding method to vacuum the combined steel billet with a mechanical pump, and th...

Embodiment 3

[0039] The present invention also sets up a control experiment for the influence of the rolling temperature on the bonding strength of the manufacturing method of Hastelloy and carbon steel clad plate, and the concrete experimental steps are as follows:

[0040] 1) Polish the surface of the C-276 Hastelloy alloy with a size of 150mm*125mm*4mm and the Q235 low carbon steel with a size of 150mm*125mm*8mm, and wash the surface impurities with acid. The Hastelloy composition is shown in Table 2:

[0041] Table 2 Hastelloy composition (wt%)

[0042]

[0043] 2) Apply a release agent between the contact surfaces of the two layers of Hastelloy to make a symmetrical combination of billets, and place the steel plate or billet on the outermost side.

[0044] 3) Add side strips to the combined Hastelloy and carbon steel combined steel billet, use vacuum electron beam welding method to vacuum the combined steel billet with a mechanical pump, and the vacuum degree reaches 10 -2 After ...

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Abstract

The invention discloses a hastelloy and carbon steel composite board and a manufacturing method thereof. The hastelloy and carbon steel composite board comprises a hastelloy layer, an interlayer interface adjacent to the hastelloy layer, an interlayer, an interlayer interface adjacent to carbon steel and a carbon steel layer. The interlayer is located between the interlayer interface adjacent to the hastelloy and the interlayer interface adjacent to the carbon steel and is connected to the interlayer interface adjacent to the hastelloy and the interlayer interface adjacent to the carbon steel.According to the manufacturing method of the hastelloy and carbon steel composite board disclosed by the invention, vacuum rolling is adopted to compound. Insulation is carried out when a blank is heated, so that the difference between the rolling temperature and the heating temperature is controlled in a certain range. Multi-pass rolling is carried out, and the hastelloy and carbon steel composite board which is relatively high in shear strength is obtained finally.

Description

technical field [0001] The invention belongs to the field of metal composite materials and engineering technology, and in particular relates to a Hastelloy and carbon steel composite plate and a manufacturing method thereof. Background technique [0002] Because steel and general metal materials are easily corroded by reacting with oxygen and water in the air, the corrosion is more serious in the acid-base environment. The occurrence of corrosion destroys the integrity of the project and causes economic losses. A single steel material cannot meet the requirements for a highly corrosion-resistant working environment. Hastelloy is a corrosion-resistant alloy with many excellent properties. It has good resistance to oxidation and moderate reduction corrosion, and has excellent resistance to stress corrosion cracking and good resistance to localized corrosion. Widely used corrosion-resistant alloy materials. [0003] Hastelloy and carbon steel composite panels have both the ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/18C22C38/04C22C38/02C22C19/05C21D8/02C22F1/10B23P15/00B21B1/38B21B47/00B21B47/02
Inventor 张中武杜鑫崔烨王潮洋
Owner NANJING YOUTIAN METAL TECH
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