CN105586510A - Wear-resisting gear - Google Patents
Wear-resisting gear Download PDFInfo
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- CN105586510A CN105586510A CN201610092815.6A CN201610092815A CN105586510A CN 105586510 A CN105586510 A CN 105586510A CN 201610092815 A CN201610092815 A CN 201610092815A CN 105586510 A CN105586510 A CN 105586510A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
- F16H2055/065—Moulded gears, e.g. inserts therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Gears, Cams (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a wear-resisting gear. The wear-resisting gear is manufactured through the working procedures of mixing of ceramic phase nickel base alloy raw material powder, pressing sintering, annealing, machining, quenching, tempering, carburization and the like. By means of the working procedures including powder mixing, pressing sintering, annealing, machining, quenching and tempering, the manufacturing working procedures are simpler, and the cost is reduced; and the surface hardness and the strength of a workpiece are improved through the working procedure of carburization.
Description
Technical field
The present invention relates to a kind of wear-resistant gear, belongs to gear technique field.
Background technology
Along with industrial development, in existing industrial circle, a lot of places all need to use gear and carry out transmission link, gear should also be applied on a lot of products in daily life, if but existing gear pressure in work is excessive, or practicality is comparatively frequent, just easily cause the damage of gear, make between gear well toe joint together, will cause this to have gear-driven product can not be practical well, and, gear is all in inside, also bad replacing, this just causes in existing gear application, gear has been had to more and more higher requirement.
Summary of the invention
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by tungsten carbide 30-40 part, cobalt oxide 10-15 part, ramet 10-15 part, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.7-0.8%, Zn0.6-0.7%, and Ti0.4-0.5%, Ga0.1-0.2%, La0.07-0.08%, In0.05-0.06%, Fe0.04-0.05%, Sr0.01-0.02%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1030-1040 DEG C, the temperature of described temper is 460-470 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Described a kind of wear-resistant gear, ceramic phase (weight) is by 30 parts of tungsten carbides, 10 parts of cobalt oxides, 10 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
Described a kind of wear-resistant gear, ceramic phase (weight) is by 40 parts of tungsten carbides, 15 parts of cobalt oxides, 15 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
Described a kind of wear-resistant gear, ceramic phase (weight) is by 35 parts of tungsten carbides, 13 parts of cobalt oxides, 13 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
Described a kind of wear-resistant gear, nickel-base alloy (weight) is by Co0.7%, Zn0.6%, Ti0.4%, Ga0.1%, La0.07%, In0.05%, Fe0.04%, Sr0.01%, surplus is Ni composition.
Described a kind of wear-resistant gear, nickel-base alloy (weight) is by Co0.8%, Zn0.7%, Ti0.5%, Ga0.2%, La0.08%, In0.06%, Fe0.05%, Sr0.02%, surplus is Ni composition.
Described a kind of wear-resistant gear, nickel-base alloy (weight) is by Co0.75%, Zn0.65%, Ti0.45%, Ga0.15%, La0.075%, In0.055%, Fe0.045%, Sr0.015%, surplus is Ni composition.
Described a kind of wear-resistant gear, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1030 DEG C, the temperature of described temper is 460 DEG C.
Described a kind of wear-resistant gear, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1040 DEG C, the temperature of described temper is 470 DEG C.
Described a kind of wear-resistant gear, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1035 DEG C, the temperature of described temper is 465 DEG C.
Foregoing invention content is with respect to the beneficial effect of prior art: 1) in wear-resistant gear of the present invention ceramic phase by tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum disilicide composition has improved the mechanical performance of material; 2) composition of nickel-base alloy has higher-strength, then under the effect of ceramic phase, steel bonded carbide intensity has obtained further raising, 3) mix by powder, compacting sintering, annealing, machined, quench, tempering process makes manufacturing process more simple, has reduced cost; 4) nitriding operation improves case hardness and the intensity of workpiece.
Detailed description of the invention
Understand for technical characterictic of the present invention, object and effect being had more clearly, now describe the specific embodiment of the present invention in detail.
Embodiment 1
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by 30 parts of tungsten carbides, 10 parts of cobalt oxides, 10 parts of ramets, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.7%, Zn0.6%, and Ti0.4%, Ga0.1%, La0.07%, In0.05%, Fe0.04%, Sr0.01%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 103 DEG C, the temperature of described temper is 46 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Embodiment 2
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by 40 parts of tungsten carbides, 15 parts of cobalt oxides, 15 parts of ramets, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.8%, Zn0.7%, and Ti0.5%, Ga0.2%, La0.08%, In0.06%, Fe0.05%, Sr0.02%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1040 DEG C, the temperature of described temper is 470 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Embodiment 3
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by 35 parts of tungsten carbides, 13 parts of cobalt oxides, 13 parts of ramets, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.75%, Zn0.65%, and Ti0.45%, Ga0.15%, La0.075%, In0.055%, Fe0.045%, Sr0.015%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1035 DEG C, the temperature of described temper is 465 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Embodiment 4
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by 33 parts of tungsten carbides, 12 parts of cobalt oxides, 12 parts of ramets, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.72%, Zn0.63%, and Ti0.44%, Ga0.13%, La0.072%, In0.053%, Fe0.044%, Sr0.013%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1032 DEG C, the temperature of described temper is 464 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Embodiment 5
A kind of wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, carburization step is prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase and nickel-base alloy, and ceramic phase (weight) is by 37 parts of tungsten carbides, 14 parts of cobalt oxides, 14 parts of ramets, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.76%, Zn0.67%, and Ti0.48%, Ga0.18%, La0.079%, In0.058%, Fe0.047%, Sr0.016%, surplus is Ni composition; The weight ratio of ceramic phase and nickel-base alloy is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1037 DEG C, the temperature of described temper is 468 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
Claims (10)
1. a wear-resistant gear, wear-resistant gear is mixed by ceramic phase nickel-base alloy material powder, compacting sintering, annealing, machined, quenches, tempering, the operations such as carburizing are prepared from:
Ceramic phase nickel-base alloy material powder comprises ceramic phase powder and Co-based alloy powder, and ceramic phase powder (weight) is by tungsten carbide 30-40 part, cobalt oxide 10-15 part, ramet 10-15 part, 2 parts of hafnium oxide, 1 part of composition of molybdenum disilicide; Nickel-base alloy (weight) is by Co0.7-0.8%, Zn0.6-0.7%, and Ti0.4-0.5%, Ga0.1-0.2%, La0.07-0.08%, In0.05-0.06%, Fe0.04-0.05%, Sr0.01-0.02%, surplus is Ni composition; The weight ratio of ceramic phase powder and Co-based alloy powder is 0.5,
Wherein in powder mixed processes: take tungsten carbide, cobalt oxide, ramet, hafnium oxide, molybdenum silicide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 23:1, and abrading-ball is hardened steel ball, Ball-milling Time 70h, applies more than 99.9% high-purity argon gas, obtains ceramic phase powder; Take aforementioned proportion Co-based alloy powder, carry out ball milling alloying according to ratio of grinding media to material 13:1, Ball-milling Time 50h, interpolation absolute ethyl alcohol is process control agent, obtains nickel-base alloy micro mist; Ceramic phase powder and nickel-base alloy micro mist are mixed, and ball milling 80 hours again, obtains ceramic phase nickel-base alloy mixed-powder;
Wherein in compacting sintering operation: the ceramic phase nickel-base alloy mixed-powder of above-mentioned acquisition is dry, sieve, be pressed into the size shape of required product; Then carry out vacuum-sintering, 30 DEG C/min of heating rate is incubated 8 hours while being warming up to 1460 DEG C, after cooling with stove,
Wherein in annealing operation: 900 DEG C of annealing temperatures, keep 5h, take out in air after then cooling to 160 DEG C with the furnace naturally cooling;
Wherein in machining processes: according to gear size machined;
Wherein quench, in tempering process: the temperature of described Quenching Treatment is 1030-1040 DEG C, the temperature of described temper is 460-470 DEG C,
Carburization step: 800 DEG C of carbon potentials 0.3% of temperature, insulation 6h, the carbon potential to 0.5% that then raises, insulation 9h, furnace temperature is down to 750 DEG C afterwards, and carbon-potential control is 1.0%; Insulation 4h, air cooling is to room temperature afterwards; Finally obtain wear-resistant gear.
2. a kind of wear-resistant gear as claimed in claim 1, ceramic phase (weight) is by 30 parts of tungsten carbides, 10 parts of cobalt oxides, 10 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
3. a kind of wear-resistant gear as claimed in claim 1, ceramic phase (weight) is by 40 parts of tungsten carbides, 15 parts of cobalt oxides, 15 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
4. a kind of wear-resistant gear as claimed in claim 1, ceramic phase (weight) is by 35 parts of tungsten carbides, 13 parts of cobalt oxides, 13 parts of ramets, 2 parts of hafnium oxide, 1 part of molybdenum disilicide.
5. a kind of wear-resistant gear as claimed in claim 1, nickel-base alloy (weight) is by Co0.7%, Zn0.6%, Ti0.4%, Ga0.1%, La0.07%, In0.05%, Fe0.04%, Sr0.01%, surplus is Ni composition.
6. a kind of wear-resistant gear as claimed in claim 1, nickel-base alloy (weight) is by Co0.8%, Zn0.7%, Ti0.5%, Ga0.2%, La0.08%, In0.06%, Fe0.05%, Sr0.02%, surplus is Ni composition.
7. a kind of wear-resistant gear as claimed in claim 1, nickel-base alloy (weight) is by Co0.75%, Zn0.65%, Ti0.45%, Ga0.15%, La0.075%, In0.055%, Fe0.045%, Sr0.015%, surplus is Ni composition.
8. a kind of wear-resistant gear as claimed in claim 1, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1030 DEG C, the temperature of described temper is 460 DEG C.
9. a kind of wear-resistant gear as claimed in claim 1, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1040 DEG C, the temperature of described temper is 470 DEG C.
10. a kind of wear-resistant gear as claimed in claim 1, wherein quenches, and in tempering process: the temperature of described Quenching Treatment is 1035 DEG C, the temperature of described temper is 465 DEG C.
Priority Applications (1)
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