CN105755398A - High-speed train brake disc - Google Patents
High-speed train brake disc Download PDFInfo
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- CN105755398A CN105755398A CN201410761648.0A CN201410761648A CN105755398A CN 105755398 A CN105755398 A CN 105755398A CN 201410761648 A CN201410761648 A CN 201410761648A CN 105755398 A CN105755398 A CN 105755398A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 239000011651 chromium Substances 0.000 claims abstract description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 12
- 239000010955 niobium Substances 0.000 claims abstract description 12
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 239000011733 molybdenum Substances 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 11
- 239000011574 phosphorus Substances 0.000 claims abstract description 11
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 238000010079 rubber tapping Methods 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910004339 Ti-Si Inorganic materials 0.000 claims abstract description 5
- 229910010978 Ti—Si Inorganic materials 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 238000009750 centrifugal casting Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229910001122 Mischmetal Inorganic materials 0.000 claims description 2
- 229910000765 intermetallic Inorganic materials 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001208 Crucible steel Inorganic materials 0.000 abstract description 5
- 229910052786 argon Inorganic materials 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010937 tungsten Substances 0.000 abstract description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001325 element alloy Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- GFUGMBIZUXZOAF-UHFFFAOYSA-N niobium zirconium Chemical compound [Zr].[Nb] GFUGMBIZUXZOAF-UHFFFAOYSA-N 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The invention relates to a high-speed train brake disc. The cast steel disc comprises the following components by mass percentage: 0.25-0.50% of carbon, 0.6-1.0% of silicon, 0.4-0.8% of manganese, 0.01-0.02% of tungsten, 0.1-0.9% of vanadium, 0.3-0.7% of molybdenum, 1.0-1.5% of nickel, 0.9-1.2% of chromium, 0.01-0.02% of titanium, 0.020-0.035% of aluminum, 0.035-0.050% of zirconium, 0.045-0.060% of niobium, a total content of phosphorus and sulfur of less than or equal to 0.01%, and the balance iron. The high-speed train brake disc cast steel disc is prepared by remelting, vacuum melting and aluminum insertion deoxidation tapping are carried out, an Re-Ti-Si vermicular modifier is poured into steel ladle through a pouring process, purification by argon blowing in ladle is employed to remove impurities, so that the high-speed train brake disc has enough strength, high and stable friction coefficient, high wear resistance and good thermal crack resistance.
Description
Technical field
The present invention is a kind of brake disc of high-speed train.The component relating to braking dish disk body material is constituted and preparation method.
Background technology
Under the damped condition that bullet train speed is high and service condition is severe, huge braking thermic load and thermal shock cause significantly high thermograde, thus bringing significantly high thermal stress, therefore causing stress concentration phenomenon, cracking and extending.Meanwhile, during braking, surface of friction pair temperature is significantly high at a high speed, can cause the deformation of disk body.Existing brake disc of high-speed train process under arms there will be the problems such as abrasion are serious, rim splits, directly influence train braking performance and security performance.Brake disc of high-speed train relies primarily on import simultaneously, and this situation has seriously constrained the raising of railway locomotive repair quality and service efficiency.
Summary of the invention
The present invention is by controlling Materials for High-speed Train Brake Discs component proportion, make it have higher mechanical property, heat-resistant anti-fatigue performance, wear resistance and the quick combination property such as thermal conductivity, improve its military service performance on the whole, reach phosphorus, sulfur content≤0.010%, carbon content >=0.03%, braking dish room temperature tensile strength >=1100MPa, braking dish yield strength >=1000MPa, Brinell hardness >=300HB, heat conductivity >=40W/m K, coefficient of friction reaches 0.40, the key index of braking dish impact toughness at room temperature >=40J.
The Materials for High-speed Train Brake Discs component that the present invention relates to and mass percent thereof are as follows: carbon content 0.25-0.50%, silicone content 0.6-1.0%, Fe content 0.4-0.8%, W content 0.01-0.02%, content of vanadium 0.1-0.9%, molybdenum content 0.3-0.7%, nickel content 1.0-1.5%, chromium content 0.9-1.2%, Ti content 0.01-0.02%, aluminum content 0.020-0.035%, zirconium content 0.035-0.050%, content of niobium 0.045-0.060%, simultaneously phosphorus, sulfur content sum less than or equal to 0.01%, iron surplus.
Owing to the fusing point of ferrum is high, its intensity, hardness, plasticity, high-temperature capability and non-oxidizability can make its alloying be adjusted by the various elements of interpolation.It is exemplified below the impact of the different element alloy performances that described disc material is added.
1) carbon (C): in steel, phosphorus content increases, yield point and tensile strength raise, but plasticity and impact flexibility reduce.
2) nickel (Ni): being formed without carbide, the effect of solution strengthening and raising quenching degree is medium；Fining ferrite grains, when intensity is identical, nickel can improve steel plasticity and toughness, particularly low-temperature flexibility；For main austenite former the decay resistance improving steel.It is used in combination with Cr, Mo etc., the heat resistance of steel and normal temperature strength and corrosion resistance can be improved.
3) tungsten (W): be carbide, steel adds appropriate tungsten can thinning microstructure crystal grain, improve intensity and toughness.Tungsten carbide fusing point is high, at high temperature stops grain growth, thus improving the elevated temperature strength of material.
4) chromium (Cr): increase the quenching degree of steel and have post-curing effect, can improve the intensity of steel, hardness and wearability, but reduce plasticity and toughness simultaneously.Chromium can also improve the elevated temperature strength of steel, is the important alloying element of heat resisting steel.
5) vanadium (V): vanadium is the excellent deoxidizer of steel.Steel adds appropriate vanadium can thinning microstructure crystal grain, improve intensity and toughness.The carbide that vanadium and carbon are formed can improve the resistant to hydrogen corrosive power of steel at high temperature under high pressure.
6) molybdenum (Mo): molybdenum can make the grain refinement of steel, improves quenching degree and red hardness energy, keeps enough intensity and creep resisting ability when high temperature.Molybdenum can also suppress the fragility that steel alloy causes due to tempering.
7) titanium (Ti): titanium is carbide, steel adds appropriate titanium can notable thinning microstructure crystal grain, improve intensity and toughness, especially comparatively obvious to improving impact flexibility contribution.
8) zirconium (Zr): zircaloy plasticity is good, weldability, it is used for welding processing.There is deoxidation, denitrogenate, the effect of desulfuration.And the zirconium of trace will make the hardness of alloy and intensity be greatly improved.
9) niobium (Nb): niobium can improve the intensity of steel, toughness, high temperature oxidation resistance and corrosion resistance, reduces steel brittleness transition temperature, it is thus achieved that good welding performance and processability.In zirconium niobium system alloy, when the addition of niobium reaches the solid solubility limit using the crystal structure of zirconium at temperature, the corrosion resistance of alloy is best.
10) manganese (Mn) aluminum (Al): the addition of above-mentioned various elements reduces the coefficient of friction of material, and manganese, aluminum can improve the wearability of material.
The preparation method that present invention also offers a kind of above-mentioned brake disc of high-speed train, this described preparation method is remelting process.
The brake disc of high-speed train that the present invention relates to, its cast steel disk body material is prepared as follows:
1) vacuum melting is adopted.When molten steel reaches temperature, sampling detection ladle chemistry, after composition is qualified, insert aluminium deoxidation tapping.
2) pour method in employing bag during tapping in steel ladle, pour the compacted alterant of Re-Ti-Si, it is therefore an objective to degassed, desulfurization and other objectionable impurities of sucking-off, moreover it is possible to improve form and the distribution of field trash, improve the as-cast structure of steel, thus improving the quality of steel.
3) adopting Argon in bag to purify technique, reduce the field trash in molten steel and gas content, improve intensity and the toughness of material, especially toughness improves comparatively obvious.
4) add one layer of Slag conglomeration agent on molten steel surface when blowing, make molten steel surface form a lamination slagging, it is to avoid molten steel and the direct catalytic oxidation of air, reduce gas content in molten steel.
It is preferred that scheme be that vacuum melting of the present invention, temperature is 1500 DEG C-2000 DEG C, and vacuum reaches more than 10Pa, pouring temperature is 1630-1860 DEG C.
It is preferred that scheme be, deoxidation of the present invention tapping adopt insert aluminium deoxidation.
It is preferred that scheme be, whole casting process of the present invention adopt fusible pattern centrifugal casting, disposal molding.
The compacted alterant of Re-Ti-Si related in above-mentioned preparation process refers to: RE is rare earth element general name symbol, rare earth is as a kind of alterant, add single rare earth (addition 0.2-0.7%) or mischmetal (addition 0.7-1.2%), high specific strength that titanium has due to it, high rigidity, high plasticity, low elastic modulus, corrosion resistance, together with rare earth element, form new intermetallic compound, good modification effect can be obtained, alloy is made to obtain rotten tissue, make alloy structure more become more meticulous, carry heavy alloyed high-temperature behavior and heat stability.
The brake disc of high-speed train that the present invention relates to has the following advantages and salience effect:
1. the pressure of brake lining when enough intensity (braking dish room temperature tensile strength >=1100MPa, braking dish yield strength >=1000MPa, braking dish impact toughness at room temperature >=40J), centrifugal force during to bear high speed rotating and braking；
2. high and stable coefficient of friction (being issued to more than 0.35 at braking high temperature), to obtain good braking effect；
3. higher wearability (Brinell hardness >=300HB), to reduce the abrasion produced between card and brake lining because of strong friction；
4. good heat resistanceheat resistant crack performance, makes braking dish not crack under sharp heat shock cool condition.
Detailed description of the invention:
Embodiment 1The present embodiment provides a kind of Materials for High-speed Train Brake Discs preparation process:
1) melting of cast steel disc material and purification bullet train cast steel disc material adopt remelting process to prepare, and adopt vacuum melting.Temperature is 1500 DEG C-2000 DEG C, and vacuum reaches more than 10Pa, when molten steel reaches 1760 ± 30 DEG C, and sampling detection ladle chemistry, after composition is qualified, insert aluminium deoxidation tapping.
2) pour method in employing bag during tapping in steel ladle, pour the compacted alterant of Re-Ti-Si, it is therefore an objective to degassed, desulfurization and other objectionable impurities of sucking-off, moreover it is possible to improve form and the distribution of field trash, improve the as-cast structure of steel, thus improving the quality of steel.
3) adopting Argon in bag to purify technique, reduce the field trash in molten steel and gas content, improve intensity and the toughness of material, especially toughness improves comparatively obvious.
3) add one layer of Slag conglomeration agent on molten steel surface when blowing, make molten steel surface form a lamination slagging, it is to avoid molten steel and the direct catalytic oxidation of air, reduce gas content in molten steel.
4) whole casting process adopts fusible pattern centrifugal casting, disposal molding.
nullThe material obtained by above-mentioned preparation process is after testing，Constituent content is within scope described in patent specification of the present invention，Wherein phosphorus content < 0.010%，Carbon content > 0.03%，Braking dish room temperature tensile strength > 1200MPa，Braking dish yield strength > 1000MPa，Brinell hardness > 340HB，Stable friction factor is at 0.35-0.45，Braking dish impact toughness at room temperature >=40J，Reach above-mentioned key technical index，Integrated performance index exceedes ironcasting and forged steel pieces braking dish performance indications，Similar braking disk technology parameter of the prior art: braking dish room temperature tensile strength is not higher than 1100MPa，Braking dish yield strength is not higher than 1000MPa，Brinell hardness is not higher than 280HB，Coefficient of friction 0.30，Braking dish impact toughness at room temperature is not higher than 40J.
Embodiment 2: the Materials for High-speed Train Brake Discs of the present embodiment, it each component included and mass percent thereof be:
Carbon content 0.26%, silicone content 0.6%, Fe content 0.4%, W content 0.01%, content of vanadium 0.2%, molybdenum content 0.3%, nickel content 1.0%, chromium content 1.0%, Ti content 0.01%, aluminum content 0.02%, zirconium content 0.035%, content of niobium 0.045%, phosphorus, sulfur content sum is less than or equal to 0.01%；Iron surplus.
After testing, braking dish room temperature tensile strength: 1210MPa, braking dish yield strength: 1050MPa, Brinell hardness: 342HB, stable friction factor is at 0.35-0.40, braking dish impact toughness at room temperature: 40J.
Embodiment 3: the Materials for High-speed Train Brake Discs of the present embodiment, it each component included and mass percent thereof be:
Carbon content 0.28%, silicone content 0.7%, Fe content 0.75%, W content 0.01%, content of vanadium 0.2%, molybdenum content 0.3%, nickel content 1.0%, chromium content 1.0%, Ti content 0.01%, aluminum content 0.032%, zirconium content 0.035%, content of niobium 0.045%, phosphorus, sulfur content sum is less than or equal to 0.01%；Iron surplus.
After testing, braking dish room temperature tensile strength: 1210MPa, braking dish yield strength: 1050MPa, Brinell hardness: 365HB, stable friction factor is at 0.38-0.40, braking dish impact toughness at room temperature: 40J.
Embodiment 4: the Materials for High-speed Train Brake Discs of the present embodiment, it each component included and mass percent thereof be:
Carbon content 0.28%, silicone content 0.7%, Fe content 0.75%, W content 0.02%, content of vanadium 0.8%, molybdenum content 0.3%, nickel content 1.0%, chromium content 1.0%, Ti content 0.01%, aluminum content 0.03%, zirconium content 0.050%, content of niobium 0.050%, phosphorus, sulfur content sum is less than or equal to 0.01%；Iron surplus.
After testing, braking dish room temperature tensile strength: 1350MPa, braking dish yield strength: 1150MPa, Brinell hardness: 360HB, stable friction factor is at 0.40-0.45, braking dish impact toughness at room temperature: 46J.
Embodiment 5: the Materials for High-speed Train Brake Discs of the present embodiment, it each component included and mass percent thereof be:
Carbon content 0.30%, silicone content 0.8%, Fe content 0.6%, W content 0.015%, content of vanadium 0.6%, molybdenum content 0.5%, nickel content 1.2%, chromium content 1.1%, Ti content 0.015%, aluminum content 0.028%, zirconium content 0.045%, content of niobium 0.050%, phosphorus, sulfur content sum is less than or equal to 0.01%；Iron surplus.
After testing, braking dish room temperature tensile strength: 1300MPa, braking dish yield strength: 1100MPa, Brinell hardness: 358HB, stable friction factor is at 0.38-0.43, braking dish impact toughness at room temperature: 43J.
Embodiment 6: the Materials for High-speed Train Brake Discs of the present embodiment, it each component included and mass percent thereof be:
Carbon content 0.5%, silicone content 0.9%, Fe content 0.6%, W content 0.015%, content of vanadium 0.6%, molybdenum content 0.5%, nickel content 1.1%, chromium content 1.0%, Ti content 0.01%, aluminum content 0.03%, zirconium content 0.040%, content of niobium 0.045%, phosphorus, sulfur content sum is less than or equal to 0.01%；Iron surplus.
After testing, braking dish room temperature tensile strength: 1320MPa, braking dish yield strength: 1180MPa, Brinell hardness: 366HB, stable friction factor is at 0.38-0.43, braking dish impact toughness at room temperature: 44J.
Claims (7)
1. a brake disc of high-speed train, it is characterised in that it each component included and mass percent: carbon content 0.25-0.50%, silicone content 0.6-1.0%, Fe content 0.4-0.8%, W content 0.01-0.02%, content of vanadium 0.1-0.9%, molybdenum content 0.3-0.7%, nickel content 1.0-1.5%, chromium content 0.9-1.2%, Ti content 0.01-0.02%, aluminum content 0.020-0.035%, zirconium content 0.035-0.050%, content of niobium 0.045-0.060%, phosphorus, sulfur content sum are less than or equal to 0.01% simultaneously；Iron surplus.
2. a preparation method for the brake disc of high-speed train described in claim 1, described preparation method is remelting process.
3. a preparation method for the brake disc of high-speed train described in claim 1, comprises the steps:
1) vacuum melting is adopted；
2) pour method in employing bag during tapping in steel ladle, pour the compacted alterant of Re-Ti-Si, described compacted alterant refers to: RE is rare earth element general name symbol, rare earth is as a kind of alterant, add single rare earth (addition 0.2-0.7%) or mischmetal (addition 0.7-1.2%), titanium is together with rare earth element, form new intermetallic compound, make alloy obtain rotten tissue；
3) gon technics purification and impurity removal in bag is adopted；
4) casting, obtains brake disc of high-speed train.
4. the preparation method of the brake disc of high-speed train described in claim 3, it is characterised in that: described vacuum melting, temperature is 1500 DEG C-2000 DEG C, and vacuum reaches more than 10Pa.
5. the preparation method of the brake disc of high-speed train described in claim 3, it is characterised in that: described deoxidation tapping adopts inserts aluminium deoxidation.
6. the preparation method of the brake disc of high-speed train described in claim 3, it is characterised in that: add one layer of Slag conglomeration agent on molten steel surface when implementing gon technics in described bag.
7. the preparation method of the brake disc of high-speed train described in claim 3, it is characterised in that: casting process adopts fusible pattern centrifugal casting, disposal molding.
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| CN201410761648.0A CN105755398B (en) | 2014-12-13 | 2014-12-13 | A kind of brake disc of high-speed train |
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| CN201410761648.0A CN105755398B (en) | 2014-12-13 | 2014-12-13 | A kind of brake disc of high-speed train |
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| CN105755398B CN105755398B (en) | 2017-11-07 |
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| CN107641696A (en) * | 2017-10-30 | 2018-01-30 | 马钢(集团)控股有限公司 | A kind of Heat-Treatment of Steel method of brake disc of high-speed train containing cobalt |
| CN107671228A (en) * | 2016-08-02 | 2018-02-09 | 中国科学院金属研究所 | A kind of casting technique of high-speed railway passenger rare earth alloy brake disc castings |
| CN107760983A (en) * | 2016-08-18 | 2018-03-06 | 江苏鼎泰工程材料有限公司 | A kind of production method of low-alloy super-strength steel and its casting |
| CN108048753A (en) * | 2017-12-20 | 2018-05-18 | 北京交通大学 | A kind of rail vehicle brake disc low-alloy steel and its heat treatment method |
| CN108842116A (en) * | 2018-06-15 | 2018-11-20 | 邯郸慧桥复合材料科技有限公司 | A kind of high-speed rail brake disc and its production method |
| CN109023095A (en) * | 2018-09-17 | 2018-12-18 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake disc |
| CN109136783A (en) * | 2018-09-17 | 2019-01-04 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake drum |
| CN109500393A (en) * | 2017-09-15 | 2019-03-22 | 西南交通大学 | A kind of laser gain material manufacturing method of brake disc of high-speed train |
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| CN107671228A (en) * | 2016-08-02 | 2018-02-09 | 中国科学院金属研究所 | A kind of casting technique of high-speed railway passenger rare earth alloy brake disc castings |
| CN107671228B (en) * | 2016-08-02 | 2019-06-07 | 中国科学院金属研究所 | A kind of casting technique of high-speed railway passenger rare earth alloy brake disc castings |
| CN107760983B (en) * | 2016-08-18 | 2019-03-01 | 江苏鼎泰工程材料有限公司 | A kind of production method of low-alloy super-strength steel and its casting |
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| CN109500393A (en) * | 2017-09-15 | 2019-03-22 | 西南交通大学 | A kind of laser gain material manufacturing method of brake disc of high-speed train |
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| CN107641696B (en) * | 2017-10-30 | 2020-01-14 | 马钢(集团)控股有限公司 | Heat treatment method of steel for cobalt-containing high-speed train brake disc |
| CN108048753A (en) * | 2017-12-20 | 2018-05-18 | 北京交通大学 | A kind of rail vehicle brake disc low-alloy steel and its heat treatment method |
| CN112281080A (en) * | 2017-12-20 | 2021-01-29 | 北京交通大学 | Low alloy steel for railway vehicle brake disc and heat treatment method thereof |
| CN108842116A (en) * | 2018-06-15 | 2018-11-20 | 邯郸慧桥复合材料科技有限公司 | A kind of high-speed rail brake disc and its production method |
| CN109136783A (en) * | 2018-09-17 | 2019-01-04 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake drum |
| CN109023095A (en) * | 2018-09-17 | 2018-12-18 | 安徽博耐克摩擦材料有限公司 | A kind of alloy steel material for brake disc |
| CN111360198B (en) * | 2020-04-03 | 2021-05-07 | 北京机科国创轻量化科学研究院有限公司 | Cast steel for high-toughness cold-hot fatigue-resistant high-speed train brake disc and preparation method thereof |
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Denomination of invention: A high-speed train brake disc Granted publication date: 20171107 Pledgee: Industrial and Commercial Bank of China Danyang Branch Pledgor: JIANGSU DINGTAI ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980002806 |
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