CN104178648B - The preparation method of the chromio bearing metal of ni-resist without magnetic - Google Patents
The preparation method of the chromio bearing metal of ni-resist without magnetic Download PDFInfo
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Abstract
The invention provides the preparation method of a kind of chromio bearing metal of ni-resist without magnetic, the age-hardening type bearing metal being made up of Ni, Cr, Al, W, micro-alloying elements, the process route of its manufacture method is: vacuum melting → electroslag remelting → forging → hot rolling → drawing → solution treatment → Ageing Treatment.The present invention is premised on adding micro-alloying elements, based on high-purity melting+special electroslag remelting duplex metallurgy, it is aided with the combination thermal deformation mode of steel ingot cogging+die forging or hot rolling, specific aim solution treatment and cold deformation in addition, period by optimized alloy element, improve metallurgical technology, improve combination thermal deformation technology, accurate thermal technology and drawing deformation parameter, improve melting level, reduce remelting defect, promote cool thermoplastic's deformation performance, improve nonmetal inclusion, uniform formation's mechanical property, be finally reached raising quality and the purpose of lumber recovery.
Description
Technical field
The present invention relates to the preparation method of a kind of bearing metal, particularly to a kind of high-quality without the manufacture method of the anti-corrosion unmanageable nickel chromium triangle base bearing alloy of magnetic.
Background technology
Bearing is important Mechanical Fundamentals parts, determines the precision of equipment, performance, life-span and reliability to a great extent.Bearing material degree of purity, structural homogenity, non-metallic inclusion and the distribution of carbide fine uniform, performance quality are the key factors affecting bearing life (especially fatigue life).In recent years, along with developing rapidly of scientific and technical and high-end equipment, the demand of high temperature, Bearing with high properties material at a high speed, under the complicated harsh working condition of high load capacity, diamagnetic, anti-corrosion, Flouride-resistani acid phesphatase is also got more and more, as the equipments such as space, ocean, oil gas, nuclear power, electronics, metallurgy, transport, blower fan, lathe and weapon all need with high-cleanness, high uniformity, the bearing material of high-performance mass.This had both had benefited from bearing material new technique, also promoted the development of its new technique.Former single qualitative melting, general EAR, single degree of freedom forges, the properties of product quality that the manufacture method of rough formula heat treatment and drawing bearing metal produces is unstable, blank forge crack often occurs, product surface burr is serious, cut is the deepest, field trash exceeds standard, primary carbide inhomogeneities, especially crackle, tissue coarse grains, timeliness hardness causes conforming product rate low not, user's incoming test qualification rate declines, material quality is the highest, reliability reduces, also have be unable to reach its application performance even if material sampling observation is qualified makes bearing products, if top load is once rushing broken (its solid solution metallographic structure and aging state metallographic structure are the most as shown in Figure 3 and Figure 4).The most former manufacturing process technology be difficult to meet now the most diamagnetic, heatproof, anti-corrosion, high impact-resistant, in high precision, long-life, highly reliable and low cost bearing material manufacture processing request, and the lumber recovery of the manufacture method of original bearing metal is low.Accordingly, it would be desirable to this bearing metal manufacture method is carried out Technology innovation and improvement, to improve material quality and lumber recovery.
Summary of the invention
For not enough present in former technology, a kind of preparation method without the anti-corrosion difficult processing nickel chromium triangle base bearing alloy of magnetic is provided, the method is by optimized alloy element, improvement metallurgical technology, perfect combination thermal deformation technology, accurate thermal technology and drawing deformation parameter, improve melting level, drop low-alloyed remelting defect, promote cool thermoplastic's deformation performance, improve nonmetal inclusion, uniform formation's mechanical property, improves quality and the lumber recovery of alloy.
To achieve these goals, the process route without the anti-corrosion difficult processing nickel chromium triangle base bearing alloy manufacturing methods of magnetic of the present invention is: vacuum melting → electroslag remelting → forging → hot rolling → drawing → solution treatment → Ageing Treatment.Concrete grammar is as follows:
1) vacuum melting:
nullTake simple substance Ni、Cr、W puts in container as bed material，Under coarse vacuum，Big electric current adds heat fusing bed material，Subsequently at 1550～1650 DEG C，Fine vacuum for the first time refine 20～35 minutes，Add simple substance Al again，At 1450～1550 DEG C，Fine vacuum second time refine 10～20 minutes，It is filled with 3k～80kPa argon，Add micro-alloying elements stirring to dissolve，Stand casting electrode rod under vacuo，The weight/mass percentage composition of the electrode obtained each component of rod is C :≤0.03%、Cr:38～43%、Al:3.0～4.0%、W:≤2%、Fe:≤1.0%、Si:≤1.0%、Mn:≤1.0%、S:≤0.03%、P:≤0.03%、Trace element≤0.13%、N+H+O:≤100ppm、Surplus Ni；
2) electroslag remelting:
The electrode bar of step 1) gained first being carried out pretreatment and carries out electroslag remelting again, obtain ESR ingot after the demoulding, the voltage of electroslag remelting is 38～55V, electric current is 3000～7000A, slag bath thickness is 60～200mm, and slag system is polynary basic slag, and each component of ESR ingot is with the electrode bar of step 1) gained；
3) forging:
By step 2) ESR ingot that obtains is heated to 1150～1230 DEG C, insulation 1～4h, at a temperature of 950～1230 DEG C, cogging is forged into square billet 1, through blanking, oxide skin sand milling and defect processing, then by square billet 1 after 1150～1230 DEG C of tempering heating 0.5～2h, at a temperature of 950～1200 DEG C, die forging on four sides or two sides pulling open die forging cause square billet 2 or rod 1, total forging ratio >=4；
4) hot rolling:
The square billet 2 that step 3) obtains is incubated 1～2h at 1150～1230 DEG C, and 950～1230 DEG C are rolled into dish circle 1 or rod 2；
5) drawing:
Dish circle 1 described in step 4) is carried out following heat treatment: be heated to 1180～1220 DEG C of insulations 45～90min, hardening carries out sofening treatment, then soda boiling 15～30 minutes at 400～500 DEG C, then pickling, add chlorination stone sodium lubricant, then multi pass drawing processing, repeat above-mentioned heat treatment step, make fire time deflection 30%, every time deflection 30% of its each heat treatment, obtain dish circle 2；
6) solution treatment:
Dish circle 2 described in rod 1 described in step 3), the rod 2 described in step 4), step 5) is heated to 1150～1210 DEG C, insulation 0.5～2h, quickly shrend obtains solid solution state alloy, its solid solution state alloy rigidity 180≤HB≤260, grain size meets 4～10 grades, is organized as minimal amount of α richness Cr phase+austenite γ phase.
7) Ageing Treatment:
By solid solution state alloy described in step 6), at 600～700 DEG C, it is incubated 5～8h, obtains described bearing metal.Described bearing metal is nonmagnetic can relative permeability μr＜ 1.01, alloy rigidity 55≤HRC≤64, alloy structure is minimal amount of α richness Cr phase+remnants γ austenite phase+separate out γ ' Ni in a large number3Al phase, alloy nonmetal inclusion sulfide≤2.0 grade, oxide≤2.0 grade, point-like inclusion≤2.0 grade, alloy is at H2Rate of corrosion ＜ 5 × 10 in S saturated solution medium-5After mm/a, 48h soak, crushing stress is unchanged, and alloy contact reaches high cycle fatigue 10 fatigue life7More than secondary.
Trace element described in step 1) is any one or two kinds in V, B, Zr, Nb, Mg, Re；The 3～4% of the gross mass that amount is Ni, Cr, Al, W and micro-alloying elements of described simple substance Al.
Step 2) weight percentage of each component of slag system of described polynary basic slag is 60～70%CaF2, 10～20%Al2O3, 5～15%CaO and 0～5%MgO.
Forging ratio >=2 of hammer cogging in step 3).
In step 6), solution heat treatment temperature determines according to Al content in alloy, and in described alloy, Al content is within the scope of 3～4%, often increases 0.20%, raises 10.2 DEG C in its solid solution temperature, and its scope heated up is between 1150～1210 DEG C.That is, if when in alloy, Al content is 3%, its heating solid solution temperature is 1150 DEG C；When in alloy, Al content is 3.2%, its heating solid solution temperature is 1160.2 DEG C ....
Compared with original technology, beneficial effect of the present invention includes:
By adding micro-alloying elements V, B, Zr, Mg or Re, improve alloy structure, improve alloy comprehensive physical mechanical property, especially forgeability；
Improve smelting technology, use high temperature refinery to remove objectionable impurities, low-temperature refining reduction gas content and two grades of refines of nonmetal inclusion, improve alloy degree of purity and plasticity；
Increase electroslag remelting operation, changing simply connected metallurgy is that duplex is metallurgical, improve alloy cast appearance state, refine alloy structure uniform, decrease Carbide Precipitation and segregation, use pre-melted slag and pretreatment electrode bar, ESR ingot Metallurgical Quality quality is greatly improved, enhance alloy plasticity, in addition trace element V, B, Zr, Mg, the intercrystalline strengthening effect of Re, comprehensively improve ingot casting forge hot performance, significantly improve ingot casting and be forged into power, it is forged into power and is risen to more than the 80% of ESR ingot by about the 30% of former vacuum ingot, improve lumber recovery, reduce material cost；
Combination forging avoids the random of single degree of freedom forging and the randomness of face crack generation, it is forged into power and is brought up to more than 95% by about 80% again, face crack reduces, lumber recovery is greatly improved, the most fully crushed As-cast Microstructure simultaneously, improve distribution of carbides, refined material structure uniform, finally improve forging internal soundness quality；
Solution treatment effectively controls material grains size, structural homogenity, physical and mechanical property and material qualification rate；
Appropriate softening process and cold deformation technological parameter use and decrease material surface drawing manufacturing deficiency, improve material surface quality.
Use the method for the invention, the bearing metal of preparation, its material purity is high, uniformity is good, quality and lumber recovery high, reduce cost of alloy, and alloy contact fatigue life be greatly improved.
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is the solid solution state metallographic structure of alloy of the present invention；
Fig. 2 is the timeliness metallographic structure of alloy of the present invention；
Fig. 3 is former technique bar detection defects sawing face solid solution state metallographic structure；
Fig. 4 is former technique bar aging state metallographic structure.
Detailed description of the invention
Embodiment 1
Use high-quality of the present invention without the preparation method of the anti-corrosion difficult processing nickel chromium triangle base bearing alloy of magnetic, manufacture Φ 120mm(large scale) optical wand.
1) vacuum melting:
nullIn 500kg vaccum sensitive stove，By simple substance Ni276.75Kg、Cr200kg、W5kg makees bed material in loading magnesium aluminate spinel crucible，Less than under 60Pa vacuum，300A electric current fusing bed material，1600～1650 DEG C，Less than refine 30min under 10Pa vacuum，Add simple substance Al18.25Kg，Then at 1450～1500 DEG C less than 5Pa fine vacuum refine 20min again，It is filled with under 8kPa argon，Add trace 0.1kgZr、The stirring of 0.1kgMg alloying element material is dissolved，Remove objectionable impurities、Reduce gas content and nonmetal inclusion，Stand under vacuum and be cast into Φ 180mm and obtain high-purity electrode bar，This electrode bar has high ingredient stability，N、H、O total content is not more than 100ppm.In electrode bar, the weight percentage of each component is: C:0.0067%, Cr:38.96%, Al:3.59%, W:1.0%, Fe:0.253%, Si:0.053%, Mn:0.001%, S:0.0011, P:0.0017, Zr:0.01, Mg:0.011, N:0.0010, H:0.0001, O:0.0065, surplus Ni.
2) electroslag remelting:
It is 70%CaF by the weight percentage of each component2、15%Al2O3, 14%CaO and 1%MgO slag charge use graphite electrode and change slag hearth be smelt matured slag, to ensure alloy metallurgy quality level, especially ensure the reduction of easy scaling loss element al content, maintain microalloy content and the metallurgical level of N, H, O low-gas content such as C, Si, Mn, Fe in ingot casting, avoid the increase of impurity element, improve tissue, enhance ingot casting forgeability.Electrode bar is carried out surface sand milling or car peeling processes, after pretreatment, 46 ± 3V voltage, 5000 ± 500A electric current, the remelting processing parameter of 150mm slag bath thickness, Φ 180mm electrode bar is carried out electroslag remelting, after the demoulding, obtains Φ 280 ESR ingot.Pretreatment electrode bar reduces the metallurgical imperfection such as field trash and element segregation in alloy through special electroslag remelting.
3) forging:
Use the combination forging mode of cogging forging+die forging on four sides, φ 280 ESR ingot is incubated 2.5h at 1200 DEG C in gas heating furnace, in the range of 1000～1200 DEG C, 25MN quick forging machine cogging is used to be forged into 180mm square billet, carry out cold sawing blanking, oxide skin sand milling and defect sand milling finishing subsequently to process, base side is melted down about 1190 DEG C insulation 1.5h again, in the range of 1000～1190 DEG C, uses arc four tup forging die to be swaged into Φ 125mm rod.
4) solid solution:
Use resistance furnace, Φ 125mm forging rod is heated to 1180 DEG C of insulation 1h, after first forging rod being cooled to 1150 DEG C with stove speed before coming out of the stove, quickly shrend obtains solid solution state alloy again, Vehicle Processing obtains Φ 120mm optical wand, bar is ultrasonic involves the defects such as surface penetration flaw detection inside and outside flawless, its hardness HB235, grain size 8 grades, austenite γ organize size uniform, and α richness Cr phase is few.Its solid solution state metallographic structure is as shown in Figure 1.
5) timeliness:
Φ 120mm optical wand uses resistance furnace, 600 DEG C of insulation 8h air coolings, obtains aging state Φ 120mm bar of the present invention.After testing, this alloy is nonmagnetic can relative permeability μr=1.003, hardness HRC60, it is organized as minimal amount of α richness Cr phase+remnants γ austenite phase+a large amount of γ ' Ni3Al phase, 2.0 grades of the nonmetal sulfide of alloy, oxide 2.0 grades, point-like inclusion 2.0 grades, it is carefully 1.5 grades.Its timeliness metallographic structure is as shown in Figure 2.
Embodiment 2:
The high-quality of the present invention, without the preparation method of the anti-corrosion difficult processing nickel chromium triangle base bearing alloy of magnetic, manufactures Φ 33mm hot-rolled rods.
1) vacuum melting:
In 500kg vaccum sensitive stove, bed material is made in simple substance Ni268.75Kg, Cr212.5Kg, loading magnesium aluminate spinel crucible, less than under 80Pa vacuum, 350A electric current material melts, 1550～1600 DEG C, less than refine 35min under 6Pa vacuum, then simple substance Al18.75kg is added, then use 1500～1550 DEG C of high temperature less than 3Pa fine vacuum refine 15min again, then fill 30kPa argon insert trace 0.35kgNb, 0.1kgRe alloying element material stirring dissolve, under vacuum stand be cast into φ 200mm electrode bar.The weight percentage of each component of electrode bar is: C:0.0078%, Cr:41.96%, Al:3.71%, W:0.24%, Fe:0.378%, Si:0.058%, Mn:0.001%, S:0.0012, P:0.0017, Nb:0.074, Re:0.02, N:0.0024, H:0.0003, O:0.0042, surplus Ni.By trace element alloying, double refining, obtain high-purity electrode bar.
2) electroslag remelting:
By 70%CaF2、15%Al2O3, 10%CaO and 5%MgO slag charge be smelt matured slag, after electrode bar carries out surface sand milling pretreatment, use 48 ± 3V voltage, 6000 ± 500A electric current, the remelting processing parameter of 150mm slag bath thickness, in φ 280 electroslag furnace, φ 200mm electrode bar is carried out electroslag remelting, after the demoulding, obtain any surface finish, stable components and satisfactory φ 280 ESR ingot.
3) forging:
φ 280 ESR ingot is used in gas heating furnace 1220 DEG C of insulation 2.5h, in the range of 1000～1220 DEG C, 25MN quick forging machine cogging is used to be forged into 150mm square billet, through cold sawing blanking, oxide skin sand milling and defect processing, cogging side is melted down 1200 DEG C of insulation 1h again, in the range of 1000～1200 DEG C, use two sides open die forging to cause 80mm square billet, and carry out surface scale and defect sand milling finishing processes to be rolled.
4) hot rolling:
By 80mm square billet 1210 DEG C of insulation 1.5h in gas heating furnace, at 950～1210 DEG C, side is rolled into Φ 36mm rod.
5) solid solution:
Use resistance furnace, Φ 36mm hot-rolled rods is heated to 1190 DEG C of insulation 1h hardening, Vehicle Processing obtains Φ 33mm optical wand, and the ultrasonic surface penetration that involves is detected a flaw without the defects such as inside and outside crackle, its hardness HB220, grain size 8.5 grades, very small amount α richness Cr phase+austenite γ metallographic structure.Its solid solution state metallographic structure is as shown in Figure 1.
6) timeliness:
Φ 33mm optical wand uses resistance furnace, 600 DEG C of insulation 6h air coolings, obtains aging state Φ 33mm bar of the present invention.After testing, this alloy is nonmagnetic can relative permeability μr1.003, hardness HRC59, it is organized as minimal amount of α richness Cr phase+remnants γ austenite phase+a large amount of γ ' Ni3Al phase, metal sulphide 1.5 grades, oxide 1.5 grades, point-like inclusion 1.0 grades, it is carefully to have reached 1.0 grades.Its timeliness metallographic structure is as shown in Figure 2.
Embodiment 3:
Use high-quality of the present invention without the preparation method of the anti-corrosion difficult processing nickel chromium triangle base bearing alloy of magnetic, manufacture Φ 3mm polishing strip.
1) vacuum melting:
In 50kg vaccum sensitive stove, bed material is made in simple substance Ni16.8kg, Cr12.15kg are loaded fused magnesite crucible, less than under 40Pa vacuum, 80A electric current material melts, 1600～1650 DEG C, less than refine 20min under 5Pa vacuum, then add simple substance Al1.05kg, then use 1480～1530 DEG C less than refine 15min again under 3Pa vacuum, then fill 8kPa argon insert trace 0.15kgV, 0.015kgB alloying element material stirring dissolve, under vacuum stand be cast into φ 100mm electrode bar.In electrode bar, the weight percentage of each component is: C:0.0072%, Cr:40.29%, Al:3.39%, W:0.025%, Fe :≤0.281%, Si:0.051%, Mn:0.013%, S:0.0011, P:0.0018, V:0.011, B:0.0024, N:0.0017, H0.0002:, O:0.0055, surplus Ni.By trace element alloying, high temperature refinery roguing, low-temperature refining degasification, obtain high-purity electrode bar.
2) electroslag remelting:
By 67%CaF2、17%Al2O3, 13%CaO and 3%MgO slag charge be smelt matured slag, after electrode bar carries out surface sand milling pretreatment, use 40 ± 3V voltage, 3500 ± 500A electric current, the remelting processing parameter of 80mm slag bath thickness, in φ 150 electroslag furnace, φ 100mm electrode bar is carried out electroslag remelting, any surface finish, reduced in segregation, φ 150 ESR ingot of stable components is obtained after the demoulding.
3) forging:
φ 150 ESR ingot is used in diesel heating stove 1180 DEG C of insulation 1h, in the range of 950～1180 DEG C, Single arm cogging is used to be forged into 80mm square billet, cold sawing blanking, oxide skin sand milling and defect processing, square billet is melted down 1170 DEG C of insulation 1h again, in the range of 950～1170 DEG C, uses two sides open die forging to cause 45mm square billet, surface scale and defect sand milling finishing process, to be rolled.
4) hot rolling:
By 45mm square billet 1180 DEG C of insulation 1h in gas heating furnace, in the range of 1000～1180 DEG C, square billet is rolled into Φ 8 dish circle.
5) drawing:
Φ 8 hot rolling dish circle is heated in resistance furnace 1190 DEG C of insulation 70min hardening sofening treatment, then soda boiling 25 minutes at 480 DEG C, then, after sulphuric acid, hydrochloric acid, nitric acid and Fluohydric acid. Diversity acid pickling, add chlorination stone sodium lubricant, be worked into Φ 6.2mm with tungsten mould 4 passage drawing；Again Φ 6mm dish circle silk is heated to 1180 DEG C of insulation 60min hardening sofening treatment in resistance furnace, then soda boiling is carried out, then after sulphuric acid, hydrochloric acid, nitric acid and Fluohydric acid. Diversity acid pickling, add chlorination stone sodium lubricant, first it is worked into Φ 4.2mm with tungsten mould 3 passage drawing, then is worked into Φ 3.3mm dish circle with glomerocryst mould 3 passage drawing.
6) solid solution:
Use resistance furnace, cold drawn for Φ 3.3mm dish circle is heated to 1170 DEG C of insulation quick hardening of 40min, and carry out alignment polishing and process to obtain Φ 3mm polishing strip, the defect such as surface fluorescence flaw detection flawless, its hardness HB200, grain size 7.5 grades, minimal amount of α richness Cr phase+austenite γ metallographic structure.Its solid solution state metallographic structure is as shown in Figure 1.
7) timeliness:
Φ 3mm polishing strip uses resistance furnace, 700 DEG C of insulation 4h air coolings, obtains aging state Φ 3mm of the present invention and polishes web.After testing, this alloy is nonmagnetic can relative permeability μr1.003, hardness HRC57, it is organized as minimal amount of α richness Cr phase+remnants γ austenite phase+a large amount of γ ' Ni3Al phase, metal sulphide 2.0 grades, oxide 1.5 grades, point-like inclusion 1.5 grades.Its timeliness metallographic structure is as shown in Figure 2.
Claims (6)
1. the preparation method without magnetic ni-resist chromio bearing metal, it is characterised in that have following steps:
1) vacuum melting:
nullTake simple substance Ni、Cr、W puts in container as bed material，Under coarse vacuum，Big electric current adds heat fusing bed material，Subsequently at 1550～1650 DEG C，Fine vacuum for the first time refine 20～35 minutes，Add simple substance Al again，At 1450～1550 DEG C，Fine vacuum second time refine 10～20 minutes，It is filled with 3k～80kPa argon，Add micro-alloying elements stirring to dissolve，Stand casting electrode rod under vacuo，The weight/mass percentage composition of the electrode obtained each component of rod is C :≤0.03%、Cr:38～43%、Al:3.0～4.0%、W:≤2%、Fe:≤1.0%、Si:≤1.0%、Mn:≤1.0%、S:≤0.03%、P:≤0.03%、Trace element≤0.13%、N+H+O:≤100ppm、Surplus Ni，Described trace element is V、B、Zr、Nb、Mg、Any one or two kinds in Re；
2) electroslag remelting:
The electrode bar of step 1) gained first being carried out pretreatment and carries out electroslag remelting again, obtain ESR ingot after the demoulding, the voltage of electroslag remelting is 38～55V, electric current is 3000～7000A, slag bath thickness is 60～200mm, and slag system is polynary basic slag, and each component of ESR ingot is with the electrode bar of step 1) gained；
3) forging:
By step 2) ESR ingot that obtains is heated to 1150～1230 DEG C, insulation 1～4h, at a temperature of 950～1230 DEG C, cogging is forged into square billet 1, through blanking, oxide skin sand milling and defect processing, then by square billet 1 after 1150～1230 DEG C of tempering heating 0.5～2h, at a temperature of 950～1200 DEG C, die forging on four sides or two sides pulling open die forging cause square billet 2 or rod 1, total forging ratio >=4；
4) hot rolling:
The square billet 2 that step 3) obtains is incubated 1～2h at 1150～1230 DEG C, and 950～1230 DEG C are rolled into dish circle 1 or rod 2；
5) drawing:
Dish circle 1 described in step 4) is carried out following heat treatment: be heated to 1180～1220 DEG C of insulations 45～90min, hardening carries out sofening treatment, then soda boiling 15～30 minutes at 400～500 DEG C, then pickling, add chlorination stone sodium lubricant, then multi pass drawing processing, repeat above-mentioned heat treatment step, make fire time deflection 30%, every time deflection 30% of its each heat treatment, obtain dish circle 2；
6) solution treatment:
Dish circle 2 described in rod 1 described in step 3), the rod 2 described in step 4), step 5) being heated to 1150～1210 DEG C, is incubated 0.5～2h, quick shrend obtains solid solution state alloy；
7) Ageing Treatment:
By solid solution state alloy described in step 6), at 600～700 DEG C, it is incubated 5～8h, obtains described bearing metal.
Bearing metal preparation method the most according to claim 1, it is characterised in that: the 3～4% of the gross mass that amount is Ni, Cr, Al, W and micro-alloying elements of the simple substance Al described in step 1).
Bearing metal preparation method the most according to claim 1, it is characterised in that: step 2) weight percentage of each component of slag system of described polynary basic slag is 60～70%CaF2, 10～20%Al2O3, 5～15%CaO and 0～5%MgO.
Bearing metal preparation method the most according to claim 1, it is characterised in that: forging ratio >=2 of hammer cogging in step 3).
Bearing metal preparation method the most according to claim 1, it is characterised in that: in step 6), solution heat treatment temperature determines according to Al content in alloy.
Bearing metal preparation method the most according to claim 5, it is characterised in that: in described alloy, Al content is within the scope of 3～4%, often increases 0.20%, and its solid solution temperature raises 10.2 DEG C, and its scope heated up is between 1150～1210 DEG C.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218538A (en) * | 1996-05-15 | 1999-06-02 | 曼B与W狄塞尔公司 | Movable wall member in form of exhaust valve spindle or piston is IC engine |
| CN1831165A (en) * | 2005-03-03 | 2006-09-13 | 大同特殊钢株式会社 | Nonmagnetic high-hardness alloy |
| CN103540803A (en) * | 2013-10-30 | 2014-01-29 | 钢铁研究总院 | High hardness non-magnetic nichrome and preparation method thereof |
-
2014
- 2014-09-12 CN CN201410460923.5A patent/CN104178648B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218538A (en) * | 1996-05-15 | 1999-06-02 | 曼B与W狄塞尔公司 | Movable wall member in form of exhaust valve spindle or piston is IC engine |
| CN1831165A (en) * | 2005-03-03 | 2006-09-13 | 大同特殊钢株式会社 | Nonmagnetic high-hardness alloy |
| CN103540803A (en) * | 2013-10-30 | 2014-01-29 | 钢铁研究总院 | High hardness non-magnetic nichrome and preparation method thereof |
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