CN109538634A - A kind of bearing inner race, preparation method and bearing - Google Patents
A kind of bearing inner race, preparation method and bearing Download PDFInfo
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- CN109538634A CN109538634A CN201811241915.6A CN201811241915A CN109538634A CN 109538634 A CN109538634 A CN 109538634A CN 201811241915 A CN201811241915 A CN 201811241915A CN 109538634 A CN109538634 A CN 109538634A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
- C22C47/062—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element from wires or filaments only
- C22C47/066—Weaving wires
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/08—Iron group metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention discloses a kind of bearing inner race, preparation method and bearing, raw material including following parts by weight proportion: 2-4 parts of alpha-silicon nitride powders, 1-3 parts of manganese powder end, 9-13 parts of boron nitride powder, 8-15 parts of molybdenum disulfide powder, 12-20 parts of nickel by powder, 4-10 parts of tungsten-carbide powder, 158-213 parts of iron powder, 33-38 parts of rhenium silk, 1-4 parts of yttrium oxide powder, 28-32 parts of four acicular type zinc oxide crystal whisker, vanadium powder 3-6 parts of nitridation, 1-2 parts of scandium powder, 7-9 parts of cobaltous carbonate powder, magnesium dust 4-10 parts of 10-12 parts of cadmium hydroxide powder and nitridation, the bearing inner race anti-cracking performance is outstanding.
Description
Technical field
The present invention relates to a kind of bearing inner race, preparation method and bearings.
Background technique
Rolling bearing is that the sliding friction between axis and axle bed by operating becomes rolling friction, to reduce friction loss
A kind of precision mechanical organ.Rolling bearing is generally made of inner ring, outer ring, rolling element and four part of retainer, inner ring
Effect is to merge to rotate together with the axis with axis matching；Outer ring effect is matched with bearing block, is played a supportive role；Rolling element is to borrow
Help retainer uniformly rolling element is distributed between inner ring and outer ring, shape size and quantity directly affect the axis of rolling
The service performance held and service life；Retainer can be such that rolling element is uniformly distributed, and guidance rolling element has rotated lubricating action.
It is contact fatigue failure that bearing inner race, which destroys most common form, is primarily due to generate local stress and fatigue occur
Crackle, therefore, the further anti-cracking performance for promoting inner ring are the directions that those skilled in the art studies always.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of bearing inner race that anti-cracking performance is outstanding, preparation method and
Bearing.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of bearing inner race, including following parts by weight proportion raw material: 2-4 parts of alpha-silicon nitride powders, 1-3 parts of manganese powder end,
9-13 parts of boron nitride powder, 8-15 parts of molybdenum disulfide powder, 12-20 parts of nickel by powder, 4-10 parts of tungsten-carbide powder, iron powder 158-
213 parts, 33-38 parts of rhenium silk, 1-4 parts of yttrium oxide powder, 28-32 parts of four acicular type zinc oxide crystal whisker, nitridation vanadium powder 3-6 parts, scandium
Magnesium dust 4-10 parts of 1-2 parts of powder, 7-9 parts of cobaltous carbonate powder, 10-12 parts of cadmium hydroxide powder and nitridation.
Further, the raw material including following parts by weight proportion: 2 parts of alpha-silicon nitride powders, manganese powder last 1 part, boron nitride powder
9 parts of end, 8 parts of molybdenum disulfide powder, 12 parts of nickel by powder, 4 parts of tungsten-carbide powder, 158 parts of iron powder, 33 parts of rhenium silk, oxidation yttrium powder
1 part of end, 28 parts of four acicular type zinc oxide crystal whisker, nitridation 3 parts of vanadium powder, 1 part of scandium powder, 7 parts of cobaltous carbonate powder, cadmium hydroxide powder
10 parts and 4 parts of magnesium dust of nitridation.
Further, the raw material including following parts by weight proportion: 4 parts of alpha-silicon nitride powders, manganese powder last 3 parts, boron nitride powder
Last 13 parts, 15 parts of molybdenum disulfide powder, 20 parts of nickel by powder, 10 parts of tungsten-carbide powder, 213 parts of iron powder, 38 parts of rhenium silk, yttrium oxide
4 parts of powder, 32 parts of four acicular type zinc oxide crystal whisker, nitridation 6 parts of vanadium powder, 2 parts of scandium powder, 9 parts of cobaltous carbonate powder, cadmium hydroxide powder
10 parts of magnesium dust of 12 parts of end and nitridation.
Further, the raw material including following parts by weight proportion: 3 parts of alpha-silicon nitride powders, manganese powder last 2 parts, boron nitride powder
Last 11 parts, 14 parts of molybdenum disulfide powder, 17 parts of nickel by powder, 6 parts of tungsten-carbide powder, 180 parts of iron powder, 35 parts of rhenium silk, yttrium oxide
3 parts of powder, 30 parts of four acicular type zinc oxide crystal whisker, nitridation 5 parts of vanadium powder, 2 parts of scandium powder, 8 parts of cobaltous carbonate powder, cadmium hydroxide powder
6 parts of magnesium dust of 11 parts of end and nitridation.
Another technical problem to be solved by the present invention is that providing a kind of preparation method of bearing inner race, comprising the following steps:
1) by 2-4 parts of alpha-silicon nitride powders, 1-3 parts of manganese powder end, 9-13 parts of boron nitride powder, 8-15 parts of molybdenum disulfide powder,
12-20 parts of nickel by powder, 4-10 parts of tungsten-carbide powder, 158-213 parts of iron powder, 1-4 parts of yttrium oxide powder, four-needle-like zinc oxide are brilliant
28-32 parts of palpus, vanadium powder 3-6 parts of nitridation, 1-2 parts of scandium powder, 7-9 parts of cobaltous carbonate powder, 10-12 parts of cadmium hydroxide powder and nitrogen
Magnesium dust 4-10 parts of change, which is poured into together in three-dimensional motion mixer, carries out mixed processing, and mixed-powder is made, spare；
2) it is woven into dictyosome by 33-38 parts of rhenium silk, is then circumnutating into helical form similar with helical spring, spiral is made
Body, it is spare；
3) conveyor screw made from step 2) is poured into mold, is subsequently poured into mixed-powder made from step 1),
1000-1200kg/m2Pressure under carry out pressing mold forming processes, wherein the processing time of pressing mold forming processes be 2-3h, be made
Blank；
4) it is sintered using hot isostatic pressing method and blank made from step 3) is sintered, wherein when sintering
Between be 2-4 hour, make pressure medium using nitrogen, pressure 140-190MPa, sintering temperature is 1550-1650 DEG C, is made interior
Circle.
The present invention also provides a kind of bearings, including above-mentioned inner ring.
The beneficial effects of the present invention are: by added with materials such as manganese, four acicular type zinc oxide crystal whisker and vanadium nitrides, effectively
Whole fracture toughness is improved, and since rhenium silk will not melt in the production process, metallurgical technology and filament toughening concept
Combine, so that the toughness of finished product and cracking resistance are further promoted；Surface is in closed dense skin, core simultaneously
Portion is but in microcellular foam structure, and bending resistance after molding is good, and rigidity is high, and internal stress is small, and large deformation is not likely to produce in use, can
There is the case where fatigue crack because generating local stress effectively to reduce.
The characteristics of being the raw material of bearing inner race below or effect:
Alpha-silicon nitride powders: the intensity of silicon nitride is very high, especially hot pressed silicon nitride (HPSN), be substance most hard in the world it
One.Its pole high temperature resistant, intensity can maintain always the high temperature to 1200 DEG C not to be melt into melt body after heated, always without declining
It can just be decomposed to 1900 DEG C, and have surprising resistance to chemical corrosion, be resistant to almost all of inorganic acid and 30% burning below
Aqueous slkali is also resistant to the corrosion of many organic acids；It is again simultaneously a kind of high-performance electric insulating materials.
Manganese powder end: being a kind of canescence, hard crisp, glossiness transition metal, in the industries such as powder metallurgy, has de- well
FeO can be reduced into iron, also serve as the additive for alloy by oxygen ability, to improve the intensity of steel, hardness, elastic limit, wear-resisting
Property and corrosion resistance etc..
Boron nitride powder: high temperature solid lubricant squeezes antiwear additive, produces the additive of ceramic composite, resistance to
Fiery material and antioxidant, the especially occasion of resist melt metal erosion, heat enhancing additive, insulating materials resistant to high temperature.
Concertedness can be played the role of by compounding simultaneously with silicon nitride, can be formed very strong combination, can be made knots with boron nitride and silicon carbide
Condensation material is modified.And have surprising resistance to chemical corrosion, compounded with silicon nitride and manganese can effectively be promoted it is whole
Corrosion resistance.
Molybdenum disulfide powder: there is good dispersion, inadherent advantage, as solid lubricant, especially suitable for high temperature
Under high pressure.Mechanical wear can be reduced by compounding with boron nitride powder, extend the service life of friction device, reduce the damage of equipment part
Consumption, good lubricating action can be played by compounding with boron nitride powder.
Nickel by powder: it is approximate silvery white, hard and have ductility and there is ferromagnetic metallic element, it can high polish and
It is anticorrosive.
Tungsten-carbide powder: for black hexagonal, there is metallic luster, and hardness is close with diamond, leads for electricity, the good of heat
Body.For manufacturing cutting element, wear parts.
Iron powder: being the primary raw material of powder metallurgy, is usually used in making sintering activity agent, sintered metal product, various machines
Tool components product, cemented carbide material product etc..
Rhenium silk: being a kind of silvery white non-ferrous metal, fusing point is that third is high after tungsten and carbon in all elements, as benefit
Qiang Ti.
Yttrium oxide powder: white yellowish powder, not soluble in water and alkali are dissolved in acid.Yttrium oxide is added when sintering to be had
Low-alloyed grain size drops in effect.
Four acicular type zinc oxide crystal whisker: excellent heat resistance: the fusing point of zinc oxide is higher than 1800 DEG C, four acicular type zinc oxide crystal whisker
It is resistant to 1720 DEG C of high temperature, four acicular type zinc oxide crystal whisker belongs to ideal for monocrystal wurtzite structure almost without fault of construction
Crystalline solid, there is high mechanical strength and elasticity modulus, be commonly used for ceramic toughening material, composite reinforcing material is three-dimensional
Crystalline structure dispersion play skeleton function in the base, unique three-D space structure keeps it bigger with the gripping power of matrix, increase
Potent fruit is more significant, obviously increases tensile strength, and horizontal and vertical tensile strength numerical value is essentially identical, isotropically
The mechanical performance for reinforcing basis material, improves matrix strength and processing performance significantly, can play good toughening effect.
Nitrogenize vanadium powder: VN alloy is a kind of novel alloy additive, and vanadium nitride, which makes an addition to, can improve the strong of steel in steel
The comprehensive mechanical performances such as degree, toughness, ductility and thermal fatigue resistance, and make steel that there is good solderability, it can promote in steel
The precipitation of carbon, vanadium, nitrogen compound, sedimentation reinforcing and Grain refinement can effectively be played by more and with yttrium oxide matching.
Scandium powder: being that the excellent of iron changes agent, scandium is remarkably improved the intensity and hardness of iron, while as density agent, can
To generate infusibility phase Sc at the edge of fine particle2Si2O7, to reduce high temperature deformation resistance, the high-temperature machinery of silicon nitride can be improved
Performance.
Cobaltous carbonate powder: 400 DEG C of heating starts to decompose, and releases carbon dioxide, generates cobalt oxide, as foaming agent, together
The cobalt oxide of Shi Shengcheng can promote whole corrosion-resistant and raising wear resistance.
Cadmium hydroxide powder: white amorphous powder or tripartite, six sides crystallization.Oxidation is started to decompose at 150 DEG C or more
Cadmium, cadmium hydroxide is heated to be decomposed into cadmium oxide and water, when cadmium oxide room temperature for brownish red to brownish black amorphous powder or cube
Crystallographic system fine crystal.Metallurgical industry is for manufacturing various alloys, hard copper alloy, type metal and aircraft engine machine bearing.
Nitrogenize magnesium dust: concertedness can be played the role of by compounding with cadmium hydroxide, can consume cadmium hydroxide decomposition
When generated moisture, while generating ammonia, play the role of foaming.
Specific embodiment
Technical solution of the present invention is described below, it is clear that described embodiment is only present invention a part
Embodiment, instead of all the embodiments, to those skilled in the art, in the premise not made the creative labor
Under, other embodiments can also be obtained according to these embodiments.
Embodiment 1:
A kind of bearing inner race, the raw material including following parts by weight proportion: 2 parts of alpha-silicon nitride powders, 1 part of manganese powder end, nitridation
9 parts of boron powder, 8 parts of molybdenum disulfide powder, 12 parts of nickel by powder, 4 parts of tungsten-carbide powder, 158 parts of iron powder, 33 parts of rhenium silk, oxidation
1 part of yttrium powder end, 28 parts of four acicular type zinc oxide crystal whisker, nitridation 3 parts of vanadium powder, 1 part of scandium powder, 7 parts of cobaltous carbonate powder, cadmium hydroxide
4 parts of magnesium dust of 10 parts of powder and nitridation.
A kind of preparation method of bearing inner race the following steps are included:
1) by 2 parts of alpha-silicon nitride powders, manganese powder end 1 part, 9 parts of boron nitride powder, 8 parts of molybdenum disulfide powder, 12 parts of nickel by powder,
4 parts of tungsten-carbide powder, 158 parts of iron powder, 1 part of yttrium oxide powder, 28 parts of four acicular type zinc oxide crystal whisker, nitridation 3 parts of vanadium powder, scandium
4 parts of magnesium dust of 1 part of powder, 7 parts of cobaltous carbonate powder, 10 parts of cadmium hydroxide powder and nitridation are poured into three-dimensional motion mixer together
Mixed-powder is made in middle carry out mixed processing, spare；
2) it is woven into dictyosome by 33 parts of rhenium silk, is then circumnutating into helical form similar with helical spring, conveyor screw is made,
It is spare；
3) conveyor screw made from step 2) is poured into mold, is subsequently poured into mixed-powder made from step 1),
1000kg/m2Pressure under carry out pressing mold forming processes, wherein the processing time of pressing mold forming processes be 2h, be made blank；
4) it is sintered using hot isostatic pressing method and blank made from step 3) is sintered, wherein when sintering
Between be 2 hours, make pressure medium using nitrogen, pressure 140MPa, sintering temperature is 1550 DEG C, and inner ring is made.
Embodiment 2:
A kind of bearing inner race, the raw material including following parts by weight proportion: 4 parts of alpha-silicon nitride powders, 3 parts of manganese powder end, nitridation
13 parts of boron powder, 15 parts of molybdenum disulfide powder, 20 parts of nickel by powder, 10 parts of tungsten-carbide powder, 213 parts of iron powder, 38 parts of rhenium silk, oxygen
Change 4 parts of yttrium powder end, 32 parts of four acicular type zinc oxide crystal whisker, nitridation 6 parts of vanadium powder, 2 parts of scandium powder, 9 parts of cobaltous carbonate powder, hydroxide
10 parts of magnesium dust of 12 parts of cadmium dust and nitridation.
A kind of preparation method of bearing inner race, comprising the following steps:
1) by 4 parts of alpha-silicon nitride powders, manganese powder last 3 parts, 13 parts of boron nitride powder, 15 parts of molybdenum disulfide powder, nickel by powder 20
Part, 10 parts of tungsten-carbide powder, 213 parts of iron powder, 4 parts of yttrium oxide powder, 32 parts of four acicular type zinc oxide crystal whisker, nitridation vanadium powder 6
Part, 2 parts of scandium powder, 9 parts of cobaltous carbonate powder, 12 parts of cadmium hydroxide powder and 10 parts of magnesium dust of nitridation are poured into three-dimensional motion together
Mixed processing is carried out in mixing machine, and mixed-powder is made, it is spare；
2) it is woven into dictyosome by 38 parts of rhenium silk, is then circumnutating into helical form similar with helical spring, conveyor screw is made,
It is spare；
3) conveyor screw made from step 2) is poured into mold, is subsequently poured into mixed-powder made from step 1),
1200kg/m2Pressure under carry out pressing mold forming processes, wherein the processing time of pressing mold forming processes be 3h, be made blank；
4) it is sintered using hot isostatic pressing method and blank made from step 3) is sintered, wherein when sintering
Between be 4 hours, make pressure medium using nitrogen, pressure 190MPa, sintering temperature is 1650 DEG C, and inner ring is made.
Embodiment 3:
A kind of bearing inner race, the raw material including following parts by weight proportion: 3 parts of alpha-silicon nitride powders, 2 parts of manganese powder end, nitridation
11 parts of boron powder, 14 parts of molybdenum disulfide powder, 17 parts of nickel by powder, 6 parts of tungsten-carbide powder, 180 parts of iron powder, 35 parts of rhenium silk, oxygen
Change 3 parts of yttrium powder end, 30 parts of four acicular type zinc oxide crystal whisker, nitridation 5 parts of vanadium powder, 2 parts of scandium powder, 8 parts of cobaltous carbonate powder, hydroxide
6 parts of magnesium dust of 11 parts of cadmium dust and nitridation.
A kind of preparation method of bearing inner race, comprising the following steps:
1) by 3 parts of alpha-silicon nitride powders, manganese powder last 2 parts, 11 parts of boron nitride powder, 14 parts of molybdenum disulfide powder, nickel by powder 17
Part, 6 parts of tungsten-carbide powder, 180 parts of iron powder, 3 parts of yttrium oxide powder, 30 parts of four acicular type zinc oxide crystal whisker, nitridation vanadium powder 5,
6 parts of magnesium dust of 2 parts of scandium powder, 8 parts of cobaltous carbonate powder, 11 parts of cadmium hydroxide powder and nitridation are poured into three-dimensional motion mixing together
Mixed processing is carried out in machine, and mixed-powder is made, it is spare；
2) it is woven into dictyosome by 35 parts of rhenium silk, is then circumnutating into helical form similar with helical spring, conveyor screw is made,
It is spare；
3) conveyor screw made from step 2) is poured into mold, is subsequently poured into mixed-powder made from step 1),
1100kg/m2Pressure under carry out pressing mold forming processes, wherein the processing time of pressing mold forming processes be 3h, be made blank；
4) it is sintered using hot isostatic pressing method and blank made from step 3) is sintered, wherein when sintering
Between be 3 hours, make pressure medium using nitrogen, pressure 180MPa, sintering temperature is 1600 DEG C, and inner ring is made.
The present invention also provides a kind of bearings, including above-mentioned inner ring.
Beneficial effects of the present invention: by effectively mentioning added with materials such as manganese, four acicular type zinc oxide crystal whisker and vanadium nitrides
Whole fracture toughness is risen, and since rhenium silk will not melt in the production process, metallurgical technology and filament toughening concept knot
Altogether, so that the toughness of finished product and cracking resistance are further promoted；Surface is in closed dense skin, core simultaneously
It but is in microcellular foam structure, bending resistance after molding is good, and rigidity is high, and internal stress is small, and large deformation is not likely to produce in use, can be with
There is the case where fatigue crack because generating local stress in effective reduce.
It encloses and is not limited thereto, any change or replacement expected without creative work should all be covered in the present invention
Protection scope within.
Claims (6)
1. a kind of bearing inner race, which is characterized in that the raw material including following parts by weight proportion: 2-4 parts of alpha-silicon nitride powders, manganese powder
1-3 parts last, 9-13 parts of boron nitride powder, 8-15 parts of molybdenum disulfide powder, 12-20 parts of nickel by powder, 4-10 parts of tungsten-carbide powder, iron
158-213 parts of powder, 33-38 parts of rhenium silk, 1-4 parts of yttrium oxide powder, 28-32 parts of four acicular type zinc oxide crystal whisker, nitridation vanadium powder
Magnesium dust 4-10 parts of 3-6 parts, 1-2 parts of scandium powder, 7-9 parts of cobaltous carbonate powder, 10-12 parts of cadmium hydroxide powder and nitridation.
2. a kind of bearing inner race as described in claim 1, which is characterized in that the raw material including following parts by weight proportion: nitrogen
2 parts of SiClx powder, manganese powder end 1 part, 9 parts of boron nitride powder, 8 parts of molybdenum disulfide powder, 12 parts of nickel by powder, 4 parts of tungsten-carbide powder,
158 parts of iron powder, 33 parts of rhenium silk, 1 part of yttrium oxide powder, 28 parts of four acicular type zinc oxide crystal whisker, nitridation 3 parts of vanadium powder, scandium powder 1
Part, 7 parts of cobaltous carbonate powder, 10 parts of cadmium hydroxide powder and 4 parts of magnesium dust of nitridation.
3. a kind of bearing inner race as described in claim 1, which is characterized in that the raw material including following parts by weight proportion: nitrogen
4 parts of SiClx powder, manganese powder last 3 parts, 13 parts of boron nitride powder, 15 parts of molybdenum disulfide powder, 20 parts of nickel by powder, tungsten-carbide powder 10
Part, 213 parts of iron powder, 38 parts of rhenium silk, 4 parts of yttrium oxide powder, 32 parts of four acicular type zinc oxide crystal whisker, nitridation 6 parts of vanadium powder, scandium powder
10 parts of magnesium dust of 2 parts of end, 9 parts of cobaltous carbonate powder, 12 parts of cadmium hydroxide powder and nitridation.
4. a kind of bearing inner race as described in claim 1, which is characterized in that the raw material including following parts by weight proportion: nitrogen
3 parts of SiClx powder, manganese powder last 2 parts, 11 parts of boron nitride powder, 14 parts of molybdenum disulfide powder, 17 parts of nickel by powder, tungsten-carbide powder 6
Part, 180 parts of iron powder, 35 parts of rhenium silk, 3 parts of yttrium oxide powder, 30 parts of four acicular type zinc oxide crystal whisker, nitridation 5 parts of vanadium powder, scandium powder
6 parts of magnesium dust of 2 parts of end, 8 parts of cobaltous carbonate powder, 11 parts of cadmium hydroxide powder and nitridation.
5. a kind of preparation method of bearing inner race, which comprises the following steps:
1) by 2-4 parts of alpha-silicon nitride powders, 1-3 parts of manganese powder end, 9-13 parts of boron nitride powder, 8-15 parts of molybdenum disulfide powder, nickel powder
12-20 parts last, 4-10 parts of tungsten-carbide powder, 158-213 parts of iron powder, 1-4 parts of yttrium oxide powder, four acicular type zinc oxide crystal whisker
28-32 parts, vanadium powder 3-6 parts of nitridation, 1-2 parts of scandium powder, 7-9 parts of cobaltous carbonate powder, 10-12 parts of cadmium hydroxide powder and nitridation
4-10 parts of magnesium dust are poured into three-dimensional motion mixer together and carry out mixed processing, and mixed-powder is made, spare；
2) it is woven into dictyosome by 33-38 parts of rhenium silk, is then circumnutating into helical form similar with helical spring, conveyor screw is made,
It is spare；
3) conveyor screw made from step 2) is poured into mold, mixed-powder made from step 1) is subsequently poured into, in 1000-
1200kg/m2Pressure under carry out pressing mold forming processes, wherein the processing time of pressing mold forming processes be 2-3h, be made blank；
4) it is sintered using hot isostatic pressing method and blank made from step 3) is sintered, wherein sintering time is
2-4 hours, make pressure medium, pressure 140-190MPa using nitrogen, sintering temperature is 1550-1650 DEG C, and inner ring is made.
6. a kind of bearing, it is characterised in that: including inner ring according to any one of claims 1-4.
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| CN201811241915.6A CN109538634A (en) | 2018-10-20 | 2018-10-20 | A kind of bearing inner race, preparation method and bearing |
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| CN201811241915.6A CN109538634A (en) | 2018-10-20 | 2018-10-20 | A kind of bearing inner race, preparation method and bearing |
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| CN109538634A true CN109538634A (en) | 2019-03-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066171A (en) * | 2019-05-22 | 2019-07-30 | 严克飞 | A kind of high temperature ceramic material and preparation method thereof |
| CN111172480A (en) * | 2020-01-20 | 2020-05-19 | 潘本建 | Metal product and preparation method thereof |
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