CN107965522B - A kind of bearing and its preparation process - Google Patents
A kind of bearing and its preparation process Download PDFInfo
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- CN107965522B CN107965522B CN201711203881.7A CN201711203881A CN107965522B CN 107965522 B CN107965522 B CN 107965522B CN 201711203881 A CN201711203881 A CN 201711203881A CN 107965522 B CN107965522 B CN 107965522B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 47
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 229920002521 macromolecule Polymers 0.000 claims abstract description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 229910052716 thallium Inorganic materials 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 238000000137 annealing Methods 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 238000005496 tempering Methods 0.000 claims description 29
- 239000004615 ingredient Substances 0.000 claims description 24
- BHHGXPLMPWCGHP-UHFFFAOYSA-N Phenethylamine Chemical compound NCCC1=CC=CC=C1 BHHGXPLMPWCGHP-UHFFFAOYSA-N 0.000 claims description 22
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000004327 boric acid Substances 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 10
- 239000000956 alloy Substances 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 229910052793 cadmium Inorganic materials 0.000 abstract description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract description 4
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 239000011572 manganese Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000011265 semifinished product Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
-
- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/06—Strength or rigidity
-
- 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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/60—Ferrous alloys, e.g. steel alloys
- F16C2204/74—Ferrous alloys, e.g. steel alloys with manganese as the next major constituent
-
- 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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/58—Several materials as provided for in F16C2208/30 - F16C2208/54 mentioned as option
-
- 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
- F16C2220/00—Shaping
- F16C2220/40—Shaping by deformation without removing material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Child & Adolescent Psychology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of bearing and its preparation processes, belong to technical field of metal material.The material composition and percentage composition of bearing are as follows: Cd:0.05-0.07%, Mn:0.5-1.5%, C:0.4-0.8%, Tl:0.08-0.12%, Cu:0.01-0.05%, Co:0.03-0.07%, surplus are Fe and impurity.Cadmium element in raw material can act on being formed in the disperse of hard copper alloy phase and steel with the copper in material, hence it is evident that promote the tensile strength and wearability of steel alloy.Thallium is extremely important to the effect of steel alloy, can not only improve the intensity of alloy, can also improve alloy rigidity, enhancing alloy corrosion performance, very important to the effect for extending life of product.Meanwhile in such a way that the macromolecule layer outside bearing body and bearing body combines, product is assigned when facing environment complicated and changeable, possesses extremely strong resistance.
Description
Technical field
The present invention relates to a kind of bearing and its preparation processes, belong to metal material field.
Background technique
Bearing is a kind of important spare part in contemporary mechanical equipment, and major function is to support mechanical rotary body, reduces it
Coefficient of friction in motion process, and guarantee its rotating accuracy.Bearing is indispensable for mechanical operating, this just needs bearing
Itself has preferable intensity and wear-resisting property.Bearing under normal conditions is prepared by material of steel alloy.
Steel alloy be the elements such as a certain amount of carbon, molybdenum, manganese are added based on iron, while control addition element content and
The alloy system of composition.Steel alloy has high-intensitive, high rigidity and certain ductility, is suitable for making structural material, therefore wide
It is general to be applied in national defense industry and civilian industry, especially occupied an important position in the industries such as automobile, motorcycle, firearms.
Steel alloy used in traditional bearing, generallys use pressure processing, and processed steel (base, ingot etc.) is made to generate plasticity
Then deformation is divided to cold working and two kinds of hot-working according to steel alloy processing temperature difference.The main machining method of steel alloy has: rolling
System, casting draw and dial, squeeze etc..Not only process is various for method, but also is also lacking in the performance of product such as intensity, hardness etc..
It is low for conventional alloys steel hardness, it is not wear-resisting the disadvantages of, publication number 106609321A discloses one kind and passes through change
Medium carbon steel bearing steel bearing outer ring heat treatment process improves the compression strength and rolling contact fatigue life of product rubbing surface.So
And the intensity, toughness that not can solve bearing, corrosion resistance and wear-resisting only are improved to heat treatment process
The problem of damage.
Summary of the invention
In view of the above problems, the present invention provides high intensity, high tenacity, corrosion-resistant and high abrasion bearing.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of bearing, the bearing includes the high molecular material outside bearing body and bearing body, wherein the bearing
Ontology is made of steel alloy, and the steel alloy is by following ingredient and its mass percentage composition: Cd:0.05-0.07%, Mn:
0.5-1.5%, C:0.4-0.8%, Tl:0.08-0.12%, Cu:0.01-0.05%, Co:0.03-0.07%, surplus be Fe and
Impurity.
It on the process for treating surface of traditional steel alloy, is protected by modes such as brushing paint vehicle or plating,
But in use, it be easy to cause and falls off and fail.The mode of metal bonding high molecular material of the invention, utilizes chemistry
High molecular material is incorporated into metal surface in a very short period of time by reaction, and high molecular material itself have higher-strength,
Hardness and corrosion resisting property, while waterproof, oxidation resistant effect can also be played.
Manganese has the characteristics that resourceful, efficiency is various, in steel alloy raw material proportioning of the invention, uses manganese as deoxidation
Agent and desulfurizing agent, can not only be effectively reduced the content of harmful element oxygen, sulphur in steel, while improve the hot-working character of steel, improve
The intensity and hardness of steel.The less addition element for steel alloy of cadmium, but a small amount of cadmium element can be acted on the copper in material
It is formed in the disperse of hard copper alloy phase and steel, hence it is evident that promote the tensile strength and wearability of steel alloy.Thallium is non-to the effect of steel alloy
It is often important, the intensity of alloy can not only be improved, can also improve alloy rigidity, enhancing alloy corrosion performance, to the extension product longevity
The effect of life is very important.Meanwhile the bianry alloy phase that thallium is formed with cadmium, respective advantage can be combined, promote its own mutually
The promotion of effect is not simple " 1+1 " combination for steel, but matter is leapt.
Preferably, the impurity includes P < 0.04%, S < 0.04%, N < 0.04%, O < in bearing raw material
0.03%.Impurity content is controlled it is possible to prevente effectively from cracking after aluminium alloy casting solidification.
Preferably, the high molecular material outside bearing body includes the component of following parts by weight: 16-20 parts of polyarylsulfone (PAS),
4-8 parts of polytetrafluoroethylene (PTFE), 3-5 parts of dimethyl sulfoxide, 5-15 parts of phenyl ethylamine.High molecular material combines lightweight, high-intensitive excellent
Anisotropic energy has many reductions to the overall weight of bearing, while the polytetrafluoroethylene (PTFE) added can effectively increase high molecular material
Wear-resisting property, extend life of product.
The present invention additionally provides another technical solution while reasonable selection material mixture ratio:
A kind of preparation process of bearing, the method include the following steps:
(1) ingredient: raw material is weighed by the ingredient and its mass percent of above-mentioned steel alloy, raw material is melted to form aluminium alloy
And it pours into and forms semi-manufactured bearing in mold；
(2) be heat-treated: by semi-manufactured bearing carry out tempering, annealing, then it is machined after be assembled into bearing；
(3) material is mixed outside: raw material is weighed by the ingredient and its number of above-mentioned high molecular material, by the raw material in addition to phenyl ethylamine
It is mixed and heated to be formed outside macromolecule and expect；
(4) steel modeling combines: immersing in acid solution after closing bearing side with plastic foil, keeps 10-20min, then immerse containing benzene
In the solution of ethamine, it finally will expect to be ejected into bearing surface outside macromolecule, bearing completed products are obtained after solidification.
With high intensity has high tenacity concurrently, the steel alloy of low brittle transition temperature is comparatively ideal structural material.Make material
Material obtains this comprehensive performance, can be optimized by variation processing technology.The present invention passes through the change to alloy Heat-Treatment of Steel
Change to optimize the internal structure of steel, so that steel alloy is finer and close.Meanwhile using acid lower acid solution, in alloy steel body
Nano aperture is formed, is trapped in hole by phenyl ethylamine, meanwhile, it is subject to the high molecular material based on polyarylsulfone (PAS) outside, it can be in height
Molecular material chemically reacts when solidifying, and steel alloy and high molecular material is firmly combined, and is guaranteeing product strength
In addition, product weight is reduced, cost is saved.
Preferably, heat treatment includes 2 isothermal temperings and 2 annealings in step (2).Change tradition
It is simple tempering and annealing, steel internal structure can be made finer and close, promote the comprehensive performance of steel.
It advanced optimizing, the temperature of first time tempering is 400-700 DEG C, and the tempering time is 5-15min, second
The time of secondary tempering is 1-5min；The temperature of annealing is 300-400 DEG C for the first time, and the annealing time is 1-
10min, the temperature of second of annealing are 200-300 DEG C, and the annealing time is 1-5min.Isothermal tempering processing can disappear
Except the residual stress inside steel, the compactness extent that can increase steel while eliminating residual stress is carried out in two times, improves steel
Intensity.And the annealing of different temperatures can increase the surface rigidity of steel, and simplify subsequent machining difficulty.
It advanced optimizes, tempering and annealing are alternately.Tempering and annealing alternately can be with
The thermal adaptability for changing steel alloy, avoids product from generating crack because of the unnatural variation of ambient temperature when using.
Preferably, the heating temperature is 250-350 DEG C in step (3).By macromolecule mixing material be maintained at compared with
High-temperature, it is ensured that high molecular material is in a liquid state, and handles convenient for post-injection.
Preferably, the acid solution is one of hydrochloric acid, sulfuric acid, boric acid, acetic acid or a variety of, acid solution in step (4)
PH is 5.2-6.0.Bearing surface is acted on using acid weaker acid solution, nano aperture can be formed, facilitate external high score
Sub- material is in conjunction with the strength of steel body itself.
Preferably, in step (4), the injection rate is 1-3mg/s, and bearing also at the uniform velocity rotates while injection.
High molecular injection rate swivel bearing simultaneously is controlled, is conducive to high molecular material and is uniformly laid on product surface, while having foot
Phenyl ethylamine in the enough time and nano aperture reacts.
Compared with prior art, the present invention has the advantage that
(1) present invention optimizes the internal structure of steel in conjunction with 2 isothermal temperings with 2 annealings, can not only
Crystal grain is refined, stress is eliminated, optimizes mechanical performance, more makes steel alloy further fine and close.
(2) isothermal tempering processing can eliminate the residual stress inside steel, carry out that residual stress can be being eliminated in two times
While increase steel compactness extent, improve the intensity of steel.
(3) annealing of different temperatures can increase the surface rigidity of steel, shorten annealing time, and simplify subsequent machine and add
Work difficulty.
(4) steel alloy and high molecular material are firmly combined, and are guaranteeing other than product strength, reduce product weight, saving at
This.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
Ingredient: raw material, including Cd:0.06%, Mn:1%, C are weighed by the ingredient and its mass percent of above-mentioned steel alloy:
0.6%, Tl:0.1%, Cu:0.03%, Co:0.05%, surplus are Fe and impurity, and wherein impurity includes P < 0.04%, S <
0.04%, N < 0.04%, O < 0.03%.Raw material is melted to form aluminium alloy and pour into and forms semi-manufactured bearing in mold.
Heat treatment: first by semi-manufactured bearing tempering, being heated to 550 DEG C, keep the temperature 10min, naturally cool to room temperature, then
It being made annealing treatment, heats semi-finished product to 350 DEG C, keep the temperature 5min, then furnace cooling carries out second of isothermal tempering processing,
Heat preservation 3min, external air-cooled to room temperature, finally second of annealing at a lower temperature, is heated to 250 DEG C, keeps the temperature nature after 3min
It is cooled to room temperature.
Outer material is mixed: weighing raw material, including 18 parts of polyarylsulfone (PAS), polytetrafluoro by the ingredient and its number of above-mentioned high molecular material
6 parts of ethylene, 4 parts of dimethyl sulfoxide, 10 parts of phenyl ethylamine.Raw material in addition to phenyl ethylamine is mixed and heated to 300 DEG C, forms high score
Sub outer material.
Steel modeling combines: immersing after closing bearing side with plastic foil containing in hydrochloric acid, sulfuric acid, boric acid, acetic acid mix acid liquor
Adjusting pH is 5.6, keeps 15min, then immerse in the solution containing phenyl ethylamine, will finally expect to spray with the rate of 2mg/s outside macromolecule
It is mapped to the bearing surface at the uniform velocity rotated, bearing completed products are obtained after solidification.
Embodiment 2
Ingredient: weighing raw material by the ingredient and its mass percent of above-mentioned steel alloy, including Cd:0.05%, Mn:0.5%,
C:0.4%, Tl:0.08%, Cu:0.01%, Co:0.03%, surplus are Fe and impurity, and wherein impurity includes P < 0.04%, S
< 0.04%, N < 0.04%, O < 0.03%.Raw material is melted to form aluminium alloy and pour into and forms semi-manufactured bearing in mold.
Heat treatment: first by semi-manufactured bearing tempering, being heated to 400 DEG C, keep the temperature 5min, naturally cool to room temperature, then
It being made annealing treatment, heats semi-finished product to 300 DEG C, keep the temperature 1min, then furnace cooling carries out second of isothermal tempering processing,
Heat preservation 1min, external air-cooled to room temperature, finally second of annealing at a lower temperature, is heated to 200 DEG C, keeps the temperature nature after 1min
It is cooled to room temperature.
Outer material is mixed: weighing raw material, including 16 parts of polyarylsulfone (PAS), polytetrafluoro by the ingredient and its number of above-mentioned high molecular material
4 parts of ethylene, 3 parts of dimethyl sulfoxide, 5 parts of phenyl ethylamine.Raw material in addition to phenyl ethylamine is mixed and heated to 300 DEG C, forms high score
Sub outer material.
Steel modeling combines: immersing after closing bearing side with plastic foil containing in hydrochloric acid, sulfuric acid, boric acid, acetic acid mix acid liquor
Adjusting pH is 5.6, keeps 15min, then immerse in the solution containing phenyl ethylamine, will finally expect to spray with the rate of 2mg/s outside macromolecule
It is mapped to the bearing surface at the uniform velocity rotated, bearing completed products are obtained after solidification.
Embodiment 3
Ingredient: weighing raw material by the ingredient and its mass percent of above-mentioned steel alloy, including Cd:0.07%, Mn:1.5%,
C:0.8%, Tl:0.12%, Cu:0.05%, Co:0.07%, surplus are Fe and impurity, and wherein impurity includes P < 0.04%, S
< 0.04%, N < 0.04%, O < 0.03%.Raw material is melted to form aluminium alloy and pour into and forms semi-manufactured bearing in mold.
Heat treatment: first by semi-manufactured bearing tempering, being heated to 700 DEG C, keep the temperature 15min, naturally cool to room temperature, then
It being made annealing treatment, heats semi-finished product to 400 DEG C, keep the temperature 10min, then furnace cooling carries out second of isothermal tempering processing,
Heat preservation 5min, external air-cooled to room temperature, finally second of annealing at a lower temperature, is heated to 300 DEG C, keeps the temperature nature after 5min
It is cooled to room temperature.
Outer material is mixed: weighing raw material, including 20 parts of polyarylsulfone (PAS), polytetrafluoro by the ingredient and its number of above-mentioned high molecular material
8 parts of ethylene, 5 parts of dimethyl sulfoxide, 15 parts of phenyl ethylamine.Raw material in addition to phenyl ethylamine is mixed and heated to 300 DEG C, forms high score
Sub outer material.
Steel modeling combines: immersing after closing bearing side with plastic foil containing in hydrochloric acid, sulfuric acid, boric acid, acetic acid mix acid liquor
Adjusting pH is 5.6, keeps 15min, then immerse in the solution containing phenyl ethylamine, will finally expect to spray with the rate of 2mg/s outside macromolecule
It is mapped to the bearing surface at the uniform velocity rotated, bearing completed products are obtained after solidification.
Embodiment 4
Ingredient: raw material, including Cd:0.06%, Mn:1%, C are weighed by the ingredient and its mass percent of above-mentioned steel alloy:
0.6%, Tl:0.1%, Cu:0.03%, Co:0.05%, surplus are Fe and impurity, and wherein impurity includes P < 0.04%, S <
0.04%, N < 0.04%, O < 0.03%.Raw material is melted to form aluminium alloy and pour into and forms semi-manufactured bearing in mold.
Heat treatment: first by semi-manufactured bearing tempering, being heated to 550 DEG C, keep the temperature 10min, naturally cool to room temperature, then
It being made annealing treatment, heats semi-finished product to 350 DEG C, keep the temperature 5min, then furnace cooling carries out second of isothermal tempering processing,
Heat preservation 3min, external air-cooled to room temperature, finally second of annealing at a lower temperature, is heated to 250 DEG C, keeps the temperature nature after 3min
It is cooled to room temperature.
Outer material is mixed: weighing raw material, including 18 parts of polyarylsulfone (PAS), polytetrafluoro by the ingredient and its number of above-mentioned high molecular material
6 parts of ethylene, 4 parts of dimethyl sulfoxide, 10 parts of phenyl ethylamine.Raw material in addition to phenyl ethylamine is mixed and heated to 250 DEG C, forms high score
Sub outer material.
Steel modeling combines: immersing after closing bearing side with plastic foil containing in hydrochloric acid, sulfuric acid, boric acid, acetic acid mix acid liquor
Adjusting pH is 5.2, keeps 10min, then immerse in the solution containing phenyl ethylamine, will finally expect to spray with the rate of 1mg/s outside macromolecule
It is mapped to the bearing surface at the uniform velocity rotated, bearing completed products are obtained after solidification.
Embodiment 5
Ingredient: raw material, including Cd:0.06%, Mn:1%, C are weighed by the ingredient and its mass percent of above-mentioned steel alloy:
0.6%, Tl:0.1%, Cu:0.03%, Co:0.05%, surplus are Fe and impurity, and wherein impurity includes P < 0.04%, S <
0.04%, N < 0.04%, O < 0.03%.Raw material is melted to form aluminium alloy and pour into and forms semi-manufactured bearing in mold.
Heat treatment: first by semi-manufactured bearing tempering, being heated to 550 DEG C, keep the temperature 10min, naturally cool to room temperature, then
It being made annealing treatment, heats semi-finished product to 350 DEG C, keep the temperature 5min, then furnace cooling carries out second of isothermal tempering processing,
Heat preservation 3min, external air-cooled to room temperature, finally second of annealing at a lower temperature, is heated to 250 DEG C, keeps the temperature nature after 3min
It is cooled to room temperature.
Outer material is mixed: weighing raw material, including 18 parts of polyarylsulfone (PAS), polytetrafluoro by the ingredient and its number of above-mentioned high molecular material
6 parts of ethylene, 4 parts of dimethyl sulfoxide, 10 parts of phenyl ethylamine.Raw material in addition to phenyl ethylamine is mixed and heated to 350 DEG C, forms high score
Sub outer material.
Steel modeling combines: immersing after closing bearing side with plastic foil containing in hydrochloric acid, sulfuric acid, boric acid, acetic acid mix acid liquor
Adjusting pH is 6.0, keeps 20min, then immerse in the solution containing phenyl ethylamine, will finally expect to spray with the rate of 3mg/s outside macromolecule
It is mapped to the bearing surface at the uniform velocity rotated, bearing completed products are obtained after solidification.
Comparative example 1
Difference with embodiment 1 is only that the heat treatment of comparative example 1 only carries out 1 tempering and 1 annealing.
Comparative example 2
Difference with embodiment 1 is only that the heat treatment of comparative example 2 only carries out 2 isothermal temperings.
Comparative example 3
Difference with embodiment 1 is only that the heat treatment of comparative example 3 only carries out 2 annealings.
Comparative example 4
Difference with embodiment 1 is only that the high molecular material of comparative example 4 is free of polytetrafluoroethylene (PTFE).
Product in embodiment 1-5 and comparative example 1-4 is tested, its intensity, elongation percentage, corrosion resistance and hard are tested
Degree, the results are shown in Table 1:
Table 1: the performance of product in embodiment 1-5 and comparative example 1-4
As can be seen from the table, heat treatment mode has large effect to intensity, the hardness of product, either returns
Fire or annealing are all indispensable, reduce its number and also have larger impact.Corrosion resistance data in table start for alloy surface
There is the time of rusty stain, it is seen that the ingredient of high molecular material has large effect to its corrosion resisting property.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.
Claims (7)
1. a kind of bearing, which is characterized in that the bearing includes the high molecular material outside bearing body and bearing body, wherein
The bearing body is made of steel alloy, and the steel alloy is by following ingredient and its mass percentage composition: Cd:0.05-
0.07%, Mn:0.5-1.5%, C:0.4-0.8%, Tl:0.08-0.12%, Cu:0.01-0.05%, Co:0.03-0.07%,
Surplus is Fe and impurity；
High molecular material outside the bearing body includes the component of following parts by weight: 16-20 parts of polyarylsulfone (PAS), polytetrafluoroethylene (PTFE)
4-8 parts, 3-5 parts of dimethyl sulfoxide, 5-15 parts of phenyl ethylamine；
The preparation process of the bearing, includes the following steps:
(1) ingredient: raw material is weighed by the ingredient and its mass percent of above-mentioned steel alloy, raw material is melted to form aluminium alloy and pour
Enter and forms semi-manufactured bearing in mold；
(2) be heat-treated: by semi-manufactured bearing carry out tempering, annealing, then it is machined after be assembled into bearing；
(3) material is mixed outside: weighing raw material by the ingredient and its number of above-mentioned high molecular material, the raw material in addition to phenyl ethylamine is mixed
And it is thermally formed outside macromolecule and expects；
(4) steel modeling combines: immersing in acid solution after closing bearing side with plastic foil, keeps 10-20min, then immerse containing phenyl ethylamine
Solution in, will finally expect outside macromolecule to be ejected into bearing surface, after solidification bearing completed products；
The heat treatment includes 2 isothermal temperings and 2 annealings.
2. bearing according to claim 1, which is characterized in that the impurity includes P < 0.04%, S < 0.04%, N <
0.04%, O < 0.03%.
3. a kind of preparation process of bearing according to claim 1, which is characterized in that the temperature of first time tempering is
400-700 DEG C, the tempering time is 5-15min, and the time of second of tempering is 1-5min；It makes annealing treatment for the first time
Temperature is 300-400 DEG C, and the annealing time is 1-10min, and the temperature of second of annealing is 200-300 DEG C, at annealing
The reason time is 1-5min.
4. a kind of preparation process of bearing according to claim 1, which is characterized in that the tempering and annealing
Alternately.
5. a kind of preparation process of bearing according to claim 1, which is characterized in that outer material mix described in heating temperature
It is 250-350 DEG C.
6. a kind of preparation process of bearing according to claim 1, which is characterized in that acid solution described in steel modeling combination is salt
One of acid, sulfuric acid, boric acid, acetic acid are a variety of, and acid solution pH is 5.2-6.0.
7. a kind of preparation process of bearing according to claim 1, which is characterized in that injection rate described in steel modeling combination
For 1-3mg/s, bearing also at the uniform velocity rotates while injection.
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Denomination of invention: A bearing and its preparation process Effective date of registration: 20231128 Granted publication date: 20190920 Pledgee: China Construction Bank Co.,Ltd. Ningbo housing and urban construction sub branch Pledgor: Ningbo Hengli Automobile Parts and Bearing Co.,Ltd. Registration number: Y2023980067828 |