Alloy steel material for high speed train brake disc and preparation method of alloy steel material

A technology of high-speed trains and brake discs, applied in the field of metal materials, can solve the problems of high cost, achieve the effects of improving wear resistance, good comprehensive mechanical properties, and wide sources

Active Publication Date: 2017-08-18
SHANDONG HAOAN GOLDTECH NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems that the existing material elongation rate, material impact energy, fatigue resistance and crack resistance performance need to be further improved and the cost is relatively high, and provides a material with high elongation rate, impact energy, fatigue resistance and crack resistance performance. Significantly improved, low-cost high-speed train brake disc alloy steel material and preparation method thereof

Method used

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  • Alloy steel material for high speed train brake disc and preparation method of alloy steel material
  • Alloy steel material for high speed train brake disc and preparation method of alloy steel material
  • Alloy steel material for high speed train brake disc and preparation method of alloy steel material

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Effect test

Embodiment 1

[0011] Use a 5000Kg intermediate frequency induction furnace to melt molten steel. The manufacturing process steps are: 1: Put A3 steel scraps into a 300HZ intermediate frequency induction furnace, and at the same time add JSS2# dephosphorization agent developed and produced by the Institute of Metal Research, Chinese Academy of Sciences, and the amount of dephosphorization agent added It accounts for 1.5% of the weight of molten steel and is melted by electricity. 2: With the melting of the charge, keep pounding the charge to avoid bridging the charge. The temperature rises to 1550℃~1560℃, and carbon, ferrochromium, nickel and ferromolybdenum are added. 3: When the temperature reaches 1590 ℃ ~ 1600 ℃, add ferrosilicon and ferromanganese, and take samples to test the components. 4: When the temperature reaches 1640°C to 1650°C, take it out of the furnace and transfer to the LF furnace. 5: In the LF furnace, add limestone to create reducing slag, blow argon, remove inclusions...

Embodiment 2

[0019] Melt molten steel with an 8000Kg medium frequency induction furnace. The manufacturing process steps are: 1: Put A3 steel scraps into a 300HZ medium frequency induction furnace, and add JSS2# dephosphorization agent at the same time. The amount of dephosphorization agent added accounts for 1.5% of the weight of molten steel. Electricity melts. 2: With the melting of the charge, keep pounding the charge to avoid bridging the charge. The temperature rises to 1550℃~1560℃, and carbon, ferrochromium, nickel and ferromolybdenum are added. 3: When the temperature reaches 1590 ℃ ~ 1600 ℃, add ferrosilicon and ferromanganese, and take samples to test the components. 4: When the temperature reaches 1640°C to 1650°C, take it out of the furnace and transfer to the LF furnace. 5: In the LF furnace, add limestone to create reducing slag, blow argon, remove inclusions, deoxidize, desulfurize, and dephosphorize; measure temperature, take samples for testing, add alloy, adjust composi...

Embodiment 3

[0026] Use a 15000Kg intermediate frequency induction furnace to melt molten steel. The manufacturing process steps are: 1: put A3 steel scraps into a 300HZ intermediate frequency induction furnace, and add JSS2# dephosphorization agent at the same time. The amount of dephosphorization agent added accounts for 1.5% of the weight of molten steel. Electricity melts. 2: With the melting of the charge, keep pounding the charge to avoid bridging the charge. The temperature rises to 1550℃~1560℃, and carbon, ferrochromium, nickel and ferromolybdenum are added. 3: When the temperature reaches 1590 ℃ ~ 1600 ℃, add ferrosilicon and ferromanganese, and take samples to test the components. 4: When the temperature reaches 1640°C to 1650°C, take it out of the furnace and transfer to the LF furnace. 5: In the LF furnace, add limestone to create reducing slag, blow argon, remove inclusions, deoxidize, desulfurize, and dephosphorize; measure temperature, take samples for testing, add alloy, ...

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Abstract

The invention relates to an alloy steel material for a high speed train brake disc and a preparation method of alloy steel material. The technical problem that elongation, impact energy, anti-fatigue performance, and crack resistance of existing materials need to be further improved is solved. The alloy steel material comprises the chemical components of carbon, silicon, manganese, chromium, nickel, molybdenum, vanadium, titanium, niobium, tungsten, aluminum, copper, zirconium, cobalt, phosphorus, sulfur, oxygen, nitrogen, hydrogen, iron and trace impurities. The preparation method of the alloy steel material is disclosed simultaneously. The alloy steel material for the high speed train brake disc and the preparation method thereof can be widely applied to the field of preparation of alloy steel materials for high speed train brake discs.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a high-speed train brake disc alloy steel material and a preparation method thereof. Background technique [0002] At present, the brake discs of high-speed trains used in China are the main consumable parts of high-speed trains and mainly rely on imports. Brake discs for high-speed trains have disadvantages such as non-wear resistance, poor toughness, easy cracks, short service life, and high cost. [0003] The Chinese invention patent application with the publication number CN 103215523 A discloses a high-speed train alloy cast steel brake disc material and its melting process, which is made of iron, carbon, silicon, manganese, chromium, nickel, molybdenum, vanadium, niobium, tungsten, titanium , aluminum, copper, zirconium, phosphorus, sulfur, etc., the weight percentage of the chemical composition of the brake disc is: 0.25-0.28C, 0.48-0.52Si, 1-1.03Mn, 0.8-0.85Cr, 0.95-1Ni, 0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/44C22C38/46C22C38/50C22C38/48C22C38/42C22C38/52C22C38/06C22C33/06C21C7/064C21C7/06C21C7/10C21C5/52
CPCC21C5/5241C21C7/06C21C7/064C21C7/10C22C33/06C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50C22C38/52Y02P10/20
Inventor 刘宗安唐德秋房克光王兢宋云德
Owner SHANDONG HAOAN GOLDTECH NEW MATERIALS
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