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Titaniferous stainless steel electroslag remelting casting powder

A technology of electroslag remelting and stainless steel, applied in the field of metallurgical auxiliary materials, can solve the problem of not very good effect, and achieve the effect of smooth surface of ingot, good thermoplasticity and high yield.

Inactive Publication Date: 2013-05-29
HENAN XIBAO METALLURGICAL MATERIALS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned electroslag remelting process of titanium-containing alloy steel reduces the investment in slag purification equipment and shortens the process flow, but by adding Al powder, FeTi powder and CaF 2 Al is also a material that is easy to burn out, so the effect is not very good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A titanium-containing stainless steel electroslag remelting mold powder, which is made of the following raw materials in parts by weight: 46.0-50.0 parts of fluorite, 20.0-24.0 parts of alumina powder, 18.5-22.5 parts of white ash, and 3.5-5.5 parts of fused magnesia parts, titanium dioxide 2.0 to 4.0 parts.

[0027] The titanium-containing stainless steel electroslag remelting mold flux contains the following components: SiO 2 0.0~0.6 parts, CaO 18.0~22.0 parts, Al 2 o 3 20.0~24.0 parts, MgO 4.2~5.8 parts, TiO 2 2.0~4.0 parts, CaF 2 45.0-51.0 parts, S<0.03 parts, C<0.03 parts.

[0028] The titanium-containing stainless steel electroslag remelting mold flux adopts the following quality control standards:

[0029] b. Use aluminum and iron rods as consumable electrodes, purify fluorite in an electric furnace, and ensure Fe in fluorite after full reaction 2 o 3 and SiO 2 The total content is less than 0.6%;

[0030] b. Dry each raw material for 4 to 6 hours...

Embodiment 2

[0035] A titanium-containing stainless steel electroslag remelting mold powder is made of the following raw materials in parts by weight: 48 parts of fluorite, 22 parts of alumina powder, 20.5 parts of lime, 4.5 parts of fused magnesia, and 3 parts of titanium dioxide.

[0036] The titanium-containing stainless steel electroslag remelting mold flux contains the following components: SiO 2 0.3 parts, CaO 20 parts, Al 2 o 3 22 parts, MgO 5 parts, TiO 2 3 parts, CaF 2 48 parts, S 0.016 parts, C 0.015 parts.

[0037] The quality control standards adopted for the titanium-containing stainless steel electroslag remelting mold flux are as follows: a. Use aluminum and iron rods as consumable electrodes, purify the fluorite in an electric furnace, and ensure that the Fe in the fluorite is fully reacted. 2 o 3 and SiO 2 The total content is less than 0.6%; b. Dry each raw material for 4-6 hours in advance to ensure that the water content is ≤0.05%; c. Stir for 5-10 minutes...

Embodiment 3

[0040] A titanium-containing stainless steel electroslag remelting mold powder is made of the following raw materials in parts by weight: 47 parts of fluorite, 21 parts of alumina powder, 21.5 parts of lime, 4.5 parts of fused magnesia, and 3.0 parts of titanium dioxide.

[0041] The titanium-containing stainless steel electroslag remelting mold flux contains the following components: SiO 2 0.50 parts, CaO 18.9 parts, Al 2 o 3 21.5 parts, MgO 4.85 parts, CaF 2 48.10 parts, TiO 2 3.20 parts, S 0.018 parts, C 0.022 parts.

[0042] The titanium-containing stainless steel electroslag remelting mold flux adopts the quality control standard as described in Example 1.

[0043] After the trial product inspection, the performance of titanium-containing stainless steel products is up to standard, and the pass rate of products is over 99.3%.

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Abstract

The invention discloses titaniferous stainless steel electroslag remelting casting powder which is prepared from the raw materials in parts by weight as follows: 46.0-50.0 parts of fluorite, 20.0-24.0 parts of alumina powder, 18.5-22.5 parts of lime, 3.5-5.5 parts of fused magnesite, 2.0-4.0 parts of titanium dioxide as well as other components: 0.0-0.6 part of SiO2, 18.0-22.0 parts of CaO, 20.0-24.0 parts of Al2O3, 4.2-5.8 parts of MgO, 2.0-4.0 parts of TiO2, 45.0-51.0 parts of CaF2, less than 0.03 part of S and less than 0.03 part of C. Slag is formed by the casting powder according to strict quality control standard so as to ensure that the impurity content is low, the purity is high and the slag is dry and free from moisture. In the electroslag remelting process, desulfuration and deoxygenation effects are enhanced, the resistivity is improved, and the casting powder is free from cutoff in arcing, good in lubrication and relatively easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of metallurgical auxiliary materials, in particular to a titanium-containing stainless steel electroslag remelting mold slag. Background technique [0002] With the rapid development of cutting-edge technology in society, higher requirements are put forward for new functional materials and new structural materials, and electroslag remelting technology has also been developed and applied by leaps and bounds. Electroslag metallurgy technology is a compound technology of metal or alloy refining, purification and solidification control. Its products have the characteristics of high purity, uniform composition, good mechanical properties and usability, and process controllability. Therefore, it is used in many important fields for production High-end products or key parts. With the application of stainless steel in many important fields of the national economy such as aerospace, military industry, energy, shipbu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/18
Inventor 李书成李伟锋黄占基朱雪峰张振
Owner HENAN XIBAO METALLURGICAL MATERIALS GROUP
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