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Alloy material resistant to corrosion of high-temperature chloride ion molten salt and preparation method of alloy material

A technology of molten salt corrosion and alloy materials, applied in furnace types, manufacturing tools, heat treatment equipment, etc., can solve problems such as the increase in the frequency of accidents, achieve simple production process, improve resistance to chloride ion corrosion performance and safety, inhibit aging effect

Pending Publication Date: 2022-03-22
XINGHUA SHUANGLONG ELECTROTHERMAL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature chloride ion molten salt corrosion on the metal heating surface of waste incineration boilers is much more serious than that of traditional coal-fired and oil-fired steel furnaces, and the resulting frequency of accidents has also greatly increased. This has become a bottleneck restricting the development of waste incineration power generation technology

Method used

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  • Alloy material resistant to corrosion of high-temperature chloride ion molten salt and preparation method of alloy material
  • Alloy material resistant to corrosion of high-temperature chloride ion molten salt and preparation method of alloy material
  • Alloy material resistant to corrosion of high-temperature chloride ion molten salt and preparation method of alloy material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, a method for preparing an alloy material resistant to high temperature chloride ion molten salt corrosion with excellent hot workability comprises the following steps:

[0023] a. The vacuum induction smelting process is adopted, and when the raw materials are batched, the raw material ingredients used are composed according to the following mass percentage (%) for raw material batching:

[0024]

[0025] Vacuum induction melting is carried out on all raw materials weighed after batching to obtain alloy melt;

[0026] b. The alloy melt prepared in the step a is cast into shape, and the alloy ingot obtained by casting is subjected to hot forging, hot rolling and annealing heat treatment processes in sequence, and finally a high temperature resistant chloride ion melt with excellent hot workability is obtained. Alloy material rod or plate for salt corrosion.

[0027] This example adopts the vacuum induction melting process, melts with comprehensive...

Embodiment 2

[0029] This embodiment is basically the same as Embodiment 1, especially in that:

[0030] In this embodiment, a method for preparing a high-temperature chloride ion molten salt corrosion-resistant method with excellent hot workability includes the following steps:

[0031] a. The vacuum induction smelting process is adopted, and when the raw materials are batched, the raw material ingredients used are composed according to the following mass percentage (%) for raw material batching:

[0032]

[0033] Vacuum induction melting is carried out on all raw materials weighed after batching to obtain alloy melt;

[0034] b. This step is the same as in Embodiment 1.

[0035] After experimental testing, the test results show that the tensile fracture strength at room temperature of the high-temperature chloride ion molten salt corrosion-resistant alloy material plate prepared in this embodiment is greater than 620 MPa, and the elongation at break is greater than 45%. The mechanica...

Embodiment 3

[0037] This embodiment is basically the same as the previous embodiment, and the special features are:

[0038] In this embodiment, a method for preparing a nuclear shielding austenitic stainless steel alloy material with excellent hot workability includes the following steps:

[0039] a. The vacuum induction smelting process is adopted, and when the raw materials are batched, the raw material ingredients used are composed according to the following mass percentage (%) for raw material batching:

[0040]

[0041]

[0042] Vacuum induction melting is carried out on all raw materials weighed after batching to obtain alloy melt;

[0043] b. This step is the same as in Embodiment 1.

[0044]After experimental testing, the test results show that the tensile fracture strength at room temperature of the alloy material with excellent hot workability and corrosion resistance to high temperature chloride ion molten salt prepared in this embodiment is greater than 650 MPa, and the...

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Abstract

The invention discloses an alloy material resistant to high-temperature chloride ion molten salt corrosion and a preparation method of the alloy material. The alloy material resistant to high-temperature chloride ion molten salt corrosion has excellent hot workability. The alloy material bar or plate with excellent hot workability and high temperature chloride ion molten salt corrosion resistance is finally prepared through the processes of burdening, vacuum induction melting, casting molding, hot forging, hot rolling, annealing treatment and the like. The alloy material resistant to high-temperature chloride ion molten salt corrosion has the advantages of high strength, low cost, chloride ion corrosion resistance, excellent hot working formability and the like.

Description

technical field [0001] The invention relates to an alloy material resistant to high-temperature chloride ion molten salt corrosion and a preparation method thereof, in particular to a nickel-based alloy material and a preparation method, and is applied in the technical field of functional alloy materials resistant to ion molten salt corrosion. Background technique [0002] In recent years, due to the adverse impact of solid waste and household garbage on the environment, the problem of garbage disposal has become a global environmental problem. At present, domestic and foreign methods of domestic waste treatment mainly include: incineration, composting, landfill, and harmless comprehensive treatment. Among them, incineration of waste to generate electricity is the most effective way to realize the recycling, reduction and harmlessness of domestic waste. After the garbage is incinerated, the general volume can be reduced by more than 90%, and the weight can be reduced by mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C30/00C22C1/02C22F1/10C21D9/00B21C37/02B21C37/04
CPCC22C19/055C22C30/00C22C1/023C22F1/10C21D9/0075C21D9/0081B21C37/02B21C37/04
Inventor 王龙宝王慧超贾国栋肖学山
Owner XINGHUA SHUANGLONG ELECTROTHERMAL ELECTRONICS CO LTD
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