Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Smelting method for heat-resisting and corrosion-resisting stainless steel material

A smelting method and stainless steel technology, which is applied in the smelting of heat-resistant and corrosion-resistant stainless steel materials, and in the field of smelting stainless steel materials, can solve the problems of inability to remove VCr10Si, increase the cost of ingredients, increase manufacturing costs, etc., and achieve good mechanical properties and chemical stability , high production efficiency, and the effect of improving the service life

Active Publication Date: 2016-11-16
SICHUAN JIANGYOU LIUHE STEAM TURBINE MATERIAL
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the low Si content of current stainless steel materials, electric arc furnaces are generally used for traditional smelting, and the metal yield of materials smelted by electric arc furnaces is low; however, Si contained in VCr10 cannot be removed when non-vacuum induction furnaces are used for smelting , if you choose to use metal Cr, the cost of ingredients will increase, increase the manufacturing cost, and the production efficiency will be low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material preparation, in % by weight, including C: 0.12%~0.16%, Si: ≤0.06%, Mn: 0.3%~0.7%, P: ≤0.020%, S: ≤0.015%, Cr: 10%~ 11%, Ni: 0.35% to 0.65%, Mo: 0.3% to 0.5%, W: 1.5% to 1.9%, V: 0.14% to 0.2%, Nb: 0.05% to 0.11%, N: 0.04% to 0.08% , Cu: ≤0.5%, and the balance of Fe, according to the mass percentage of the above elements, the following raw materials are equipped: Benxi steel return, VCr 10 , Cr-N, J-W rod or wire, Mo-Fe, Nb-Fe, V-Fe, electrolytic Mn, iron oxide scale alloy material; put the equipped alloy material into the melting furnace for melting, and the melting temperature is 1450~1460℃ , adjust the content of each element during the smelting process to make the weight ratio meet the design requirements, and add VCr at the initial stage of smelting 10 Start to melt, and add appropriate amount of iron oxide scale along with the furnace, add appropriate amount of fluorite powder and lime to make slag; wait for VCr 10 After the alloy material is melted,...

Embodiment 2

[0028] Raw material preparation, in % by weight, including C: 0.12%~0.16%, Si: ≤0.06%, Mn: 0.3%~0.7%, P: ≤0.020%, S: ≤0.015%, Cr: 10%~ 11%, Ni: 0.35% to 0.65%, Mo: 0.3% to 0.5%, W: 1.5% to 1.9%, V: 0.14% to 0.2%, Nb: 0.05% to 0.11%, N: 0.04% to 0.08% , Cu: ≤0.5%, and the balance of Fe, according to the mass percentage of the above elements, the following raw materials are equipped: Benxi steel return, VCr 10 , Cr-N, J-W rod or wire, Mo-Fe, Nb-Fe, V-Fe, electrolytic Mn, iron oxide scale alloy material; put the equipped alloy material into the melting furnace for melting, and the melting temperature is 1450~1460℃ , adjust the content of each element during the smelting process to make the weight ratio meet the design requirements, and add VCr at the initial stage of smelting 10 Start to melt, and add appropriate amount of iron oxide scale along with the furnace, add appropriate amount of fluorite powder and lime to make slag; wait for VCr 10After the alloy material is melted, ...

Embodiment 3

[0031] Raw material preparation, in % by weight, including C: 0.12%~0.16%, Si: ≤0.06%, Mn: 0.3%~0.7%, P: ≤0.020%, S: ≤0.015%, Cr: 10%~ 11%, Ni: 0.35% to 0.65%, Mo: 0.3% to 0.5%, W: 1.5% to 1.9%, V: 0.14% to 0.2%, Nb: 0.05% to 0.11%, N: 0.04% to 0.08% , Cu: ≤0.5%, and the balance of Fe, according to the mass percentage of the above elements, the following raw materials are equipped: Benxi steel return, VCr 10 , Cr-N, J-W rod or wire, Mo-Fe, Nb-Fe, V-Fe, electrolytic Mn, iron oxide scale alloy material; put the equipped alloy material into the melting furnace for melting, and the melting temperature is 1450~1460℃ , adjust the content of each element during the smelting process to make the weight ratio meet the design requirements, and add VCr at the initial stage of smelting 10 Start to melt, and add appropriate amount of iron oxide scale along with the furnace, add appropriate amount of fluorite powder and lime to make slag; wait for VCr 10 After the alloy material is melted,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a smelting method for a heat-resisting and corrosion-resisting stainless steel material. The method includes the following steps that the material comprises, by weight percentage, 0.12%-0.16% of C, smaller than or equal to 0.06% of Si, 0.3%-0.7% of Mn, smaller than or equal to 0.020% of P, smaller than or equal to 0.015% of S, 10%-11% of Cr, 0.35%-0.65% of Ni, 0.3%-0.5% of Mo, 1.5%-1.9% of W, 0.14%-0.2% of V, 0.05%-0.11% of Nb, 0.04%-0.08% of N, smaller than or equal to 0.5% of Cu and the balance Fe; raw materials are prepared; non-vacuum induction furnace smelting is conducted; LF furnace smelting is conducted; and VD vacuum degassing and casting are conducted. The metal yield of the stainless steel material prepared through the method reaches up to 7%-10%; a VCr10 alloy material is used for replacing metal Cr, so that the burdening cost is greatly reduced, Si contained in VCr10 is effectively reduced, the production effect of the material is high, due to the proportion of fluorite to lime, the performance of the product can be well improved, and the product yield can be greatly increased; and the heat-resisting stainless steel material produced and prepared through the method is uniform in structure, and therefore the service life of the alloy material is greatly prolonged.

Description

technical field [0001] The invention relates to a smelting method of a stainless steel material, in particular to a smelting method of a heat-resistant and corrosion-resistant stainless steel material, and belongs to the technical field of alloy material application. Background technique [0002] With the development of science and technology, the demand for the output and variety of special alloys is increasing, and the requirements for quality are becoming more and more strict and demanding. In recent years, focusing on improving the performance, quality, variety and efficiency of special alloys, reducing the cost of special alloys, A series of new technologies, new processes, and new equipment have been adopted in terms of energy saving, consumption reduction, and environmental friendliness, which have greatly improved the cleanliness, uniformity, microstructure, and dimensional accuracy of special alloys. Stainless steel is stainless and acid-resistant The abbreviation o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C38/48C22C38/46C22C38/44C22C38/42C22C38/04C21C5/00C22C33/06
CPCC21C5/005C22C33/06C22C38/04C22C38/42C22C38/44C22C38/46C22C38/48Y02P10/20
Inventor 李建雷德江黄志永刘永新丁勇张华国
Owner SICHUAN JIANGYOU LIUHE STEAM TURBINE MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com