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A heat-resistant material for high temperature measurement and its preparation method

A heat-resistant material and high-temperature technology, which is applied in the field of new materials for blast furnace temperature measurement, manufacturing, and production of new materials, can solve problems such as the inability to meet the needs of high-temperature measurement, and achieve a good market space effect

Inactive Publication Date: 2017-10-31
CHONGQING CHUANSHEN METAL NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the inability of 310S or 304 stainless steel materials in the prior art to meet the needs of high-temperature measurement, the purpose of the present invention is to provide a new type of heat-resistant material suitable for high-temperature measurement and its production and manufacturing method

Method used

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  • A heat-resistant material for high temperature measurement and its preparation method
  • A heat-resistant material for high temperature measurement and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (chemical composition 1):

[0028] 1. Process implementation

[0029] 1) Electric furnace smelting and casting

[0030] The specific implementation is as follows:

[0031] Add low-carbon steel scrap, ferro-tungsten, ferro-molybdenum, ferro-chromium, ferro-vanadium, and nickel plates into a 500KG medium-frequency induction furnace in order to melt;

[0032] Argon blowing in the furnace;

[0033] Adjust the chemical composition of the molten steel, and pass the chemical detection and analysis before the furnace. After the composition is qualified, add deoxidizer aluminum strips, and raise the temperature to 1600--1650 ° C to prepare for tapping;

[0034] Crush the rare earth to a size of 20mm, and put the rare earth baked at 280°Cx4H in the ladle after the steel is baked, and pour the ladle with molten steel at 1600--1650°C;

[0035] After calming down for 10-20 minutes, start casting when the steel temperature reaches 1500-1550°C.

[0036] 2) Annealing ...

Embodiment 2

[0051] Embodiment 2 (chemical composition 2):

[0052] 1. Process implementation

[0053] Process implementation is the same as that in Example 1.

[0054] 2. Test results

[0055] element

C

Si

mn

Cr

Ni

Re

Element

0.47

2.36

0.49

25.68

19.32

0.07

element

W

Mo

V

S

P

Fe

Element

3.69

1.83

0.79

0.020

0.018

the remaining

[0056] 2) Mechanical properties

[0057]

[0058] 3) High temperature performance test

[0059] The high-temperature performance test results show that the high-temperature performance index of this composition material is obviously better than that of 310S and 310S stainless steel, and the high-temperature resistance can reach 1150°C.

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Abstract

The invention discloses a new heat-resistant material for high temperature measurement and its preparation method. The chemical composition of the material is: C: 0-0.6%, Si: 0.6-2.5%, Re: 0.04-0.1%, W: 1-4%, Mo: 0.5-2%, Cr: 18-27%, Ni: 9-22%, Mn<0.8%, V: 0-1%, S<0.035%, P<0.035%, and the rest are Fe. The red hardness of this new material is obviously stronger than that of traditional 304 and 310S stainless steel. At the same time, this new material has forgeability and weldability, which solves the problem of structural connection and makes the material have room for expanded use. The cost performance of this new type of material has been greatly increased, and it has obvious applicability under static stress under high temperature conditions, and has a good market space. It has obvious effects on improving temperature monitoring accuracy and reducing costs for high temperature measurement users, especially steel mills. .

Description

technical field [0001] The invention relates to a high temperature resistant material, in particular a new material suitable for blast furnace temperature measurement, and a production and manufacturing method of the new material. Background technique [0002] Temperature has always been a key factor controlling the quality and cost of ironmaking and steelmaking. For ironmaking, the control of temperature on C, O, H, N, S, P and impurity elements in molten iron and factors such as gas distribution in blast furnace, furnace charge distribution, blast furnace utilization factor, coke ratio, coal injection, furnace operation, etc. All play a key and guiding role. For steelmaking, the temperature directly determines the further purification of molten iron and the degree of deoxidation, desulfurization, dephosphorization and removal of inclusions, and also directly determines the energy consumption and equipment loss of steelmaking equipment. Controlling temperature has always ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/46C22C38/44C22C30/00
Inventor 喻怀忠张轶朱晋川
Owner CHONGQING CHUANSHEN METAL NEW MATERIAL
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