CN106244846A - A kind of ball bearing - Google Patents

A kind of ball bearing Download PDF

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Publication number
CN106244846A
CN106244846A CN201610442879.4A CN201610442879A CN106244846A CN 106244846 A CN106244846 A CN 106244846A CN 201610442879 A CN201610442879 A CN 201610442879A CN 106244846 A CN106244846 A CN 106244846A
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China
Prior art keywords
ball
outer shroud
internal ring
temperature
welding
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CN201610442879.4A
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Chinese (zh)
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陈鹏
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Individual
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Individual
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Priority to CN201610442879.4A priority Critical patent/CN106244846A/en
Publication of CN106244846A publication Critical patent/CN106244846A/en
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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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/05—Alloys based on copper with manganese as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • 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
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
    • 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
    • F16C33/32—Balls
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • F16C2204/10—Alloys based on 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
    • F16C2220/00—Shaping
    • F16C2220/24—Shaping by built-up welding
    • 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
    • F16C2220/60—Shaping by removing material, e.g. machining
    • 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
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Sliding-Contact Bearings (AREA)
  • Heat Treatment Of Articles (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A kind of ball bearing, it is characterized in that: including: outer shroud 1, internal ring 2, ball and keeper, outer shroud and the coaxially connected setting of internal ring, multiple balls are evenly distributed between described outer shroud 1 and described internal ring 2, it is fixed with between described outer shroud and described internal ring and limits the keeper that ball moves, ball surface-coated has silicon nitride alumina coating layer, outer race inner surface and interior ring outer surface carry out built-up welding process makes bearing reach higher wearability and fatigue performance, and corresponding decay resistance is also improved；By ball outside surface is coated, improves the wear and corrosion behavior of material, effectively increase the service life.

Description

A kind of ball bearing
Technical field
The present invention relates to a kind of ball bearing, belongs to technical field of bearings.
Background technology
Ball bearing is the one of rolling bearing, and spherical alloy steel ball is arranged on the centre of interior steel ring and outer rim, with Roll mode reduces the frictional force in power transmission process and improves mechanokinetic transmission efficiency.Ball bearing can not bear Bigger heavy load, in light indusqtry machinery more typically.Existing ball bearing in anti-wear performance decay resistance intensity all There is certain defect, service life is the longest.
Summary of the invention
A kind of ball bearing, it is characterised in that: including: outer shroud, internal ring, ball and keeper, outer shroud coaxially connects with internal ring Connecing setting, multiple balls are evenly distributed between described outer shroud and described internal ring, are fixed with between described outer shroud and described internal ring Limiting the keeper that ball moves, ball surface-coated has silicon nitride-silicon oxide aluminium coating,
Outer shroud and internal ring material of main part select copper alloy
Copper alloy chemical composition is (percentage by weight): Mn:12.5, Ni:9.5, Mo:4.5, Al:2.5, Mg: 0.85, Ti 0.75, Zn:0.55, Ca:0.15, Cr:0.075, B: 0.055, Nb:0.035, C: 0.015, Pr:0.015, surplus is Cu and inevitable impurity；
Manufacture described outer shroud and internal ring comprises the following steps: according to above-mentioned copper alloy chemical composition dispensing, first fine copper is joined In smelting furnace, Control for Kiln Temperature is at 1300 DEG C, and after fine copper melts, copper melt temperature is raised to 1320 DEG C and adds copper-manganese intermediate alloy, After furnace temperature be increased to 1340 DEG C add nickel-copper intermediate alloys；After furnace temperature be increased to 1360 DEG C add molybdenum copper intermediate alloys；After Furnace temperature being increased to 1380 DEG C and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, adds refine cleanser, and refine purifies Agent addition is the 0.9% of furnace charge amount, stirs 50 minutes, stands 100 minutes, treats that slag separates with molten metal, skim, and rear addition is covered Lid agent, the total addition of coverture is the 0.6% of furnace charge amount, again skims, the most respectively to outer shroud and internal ring after standing 40 minutes Pour into a mould；Pouring temperature is 1300 DEG C；The outer shroud obtained and internal ring blank carry out heat treatment: first by outer shroud and internal ring blank Carry out being heated to 700 DEG C, heating rate 100 DEG C/h, it is incubated 3 hours, carries out Quenching Treatment afterwards, hardening media is Water, is heated to 500 DEG C by outer shroud and internal ring blank from room temperature after quenching, and heating rate 100 DEG C/h is incubated 4 hours, drops afterwards Temperature to 350 DEG C, rate of temperature fall 60 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, rate of temperature fall 70 DEG C/h, guarantor Temperature 5 hours, rear air cooling to room temperature,
Internal ring and outer shroud blank are warming up to 650 DEG C, heating rate 150 DEG C/h, it is incubated 1 hour, water hardening afterwards, then Secondary heating base substrate is incubated 3 hours to 500 DEG C, and air cooling of coming out of the stove is to room temperature；Base substrate puts into subzero treatment 5 minutes in liquid nitrogen, at air In go back up to room temperature；
After subzero treatment, external ring inner surface carries out built-up welding, and bead-welding technology is: 200 DEG C of preheatings；During built-up welding, electric current is 62A, voltage For 12V, built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm, and built-up welding is the coldest after completing But；Overlay cladding consists of: Al 14.5%, Mn 4.5%, Mg 2.5%, Co 0.55%, C 0.25%, Si 0.15%, W 0.035%, Surplus is Zn；
Internally ring outer surface carries out built-up welding, and bead-welding technology is: 190 DEG C of preheatings, and during built-up welding, electric current is 56A, and voltage is 12V, built-up welding Speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm, built-up welding complete after Slow cooling；Overlay cladding consists of: Si 12.5%, Cu 4.5%, Fe 2.5%, Zn 1.5%, V 0.85%, Cr 0.45%, Ni 0.055%, surplus is Sn；
The method step manufacturing described ball is:
Carry out melting according to ball material of main part elemental constituent, after cast, obtain blank, ball material of main part is by following unit Element composition: C 0.25%, Si 3.5%, Cr 12.5%, Co 2.5%, Mo 1.5%, V 0.75%, Ti 0.45%, Zr 0.25%, W 0.15%, Ni 0.055%, Al 0.035%, Ce 0.015%, surplus is Fe and inevitable impurity；
By blank through supercool pier molding, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, described heat Process step is, ball after buffing is warming up to 730 DEG C, heating rate 100 DEG C/h, is incubated 4 hours, water hardening afterwards, Heating ball is incubated 3 hours at 500 DEG C again, and air cooling of coming out of the stove is to room temperature；
The ball main body obtained by lappingout carries out surface-coated, and coating consists of: silicon nitride 35 parts, aluminium oxide 15 parts, thick coating Degree 10-20 micron, obtains final ball.
Foregoing invention content having the beneficial effects that relative to prior art: 1) copper-based alloy material of the present invention is the most satisfied Outer race and the requirement of strength of internal ring；2) outer race and internal ring are improved bulk hardness hardness and the intensity creep resistant of bearing Performance, it is to avoid crackle occurs；3) outer race inner surface and interior ring outer surface carry out built-up welding process makes bearing reach higher Wearability and fatigue performance, corresponding decay resistance is also improved；4) by ball outside surface is coated, carry The wear and corrosion behavior of high material, effectively increases the service life.
Accompanying drawing explanation
Fig. 1 is ball bearing structure schematic diagram.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now describe the present invention's in detail Detailed description of the invention.
A kind of ball bearing as shown in Figure 1, it is characterised in that: including: outer shroud 1, internal ring 2, ball 3 and keeper (do not show Go out), outer shroud 1 and the coaxially connected setting of internal ring 2, multiple balls 3 are evenly distributed between described outer shroud 1 and described internal ring 2, described It is fixed with between outer shroud 1 and described internal ring 2 and limits the keeper that ball moves,
Embodiment 1
A kind of ball bearing, it is characterised in that: including: outer shroud, internal ring, ball and keeper, outer shroud is coaxially connected with internal ring to be set Putting, multiple balls are evenly distributed between described outer shroud and described internal ring, are fixed with restriction between described outer shroud and described internal ring The keeper that ball moves, ball surface-coated has silicon nitride-silicon oxide aluminium coating,
Outer shroud and internal ring material of main part select copper alloy
Copper alloy chemical composition is (percentage by weight): Mn:12.5, Ni:9.5, Mo:4.5, Al:2.5, Mg: 0.85, Ti 0.75, Zn:0.55, Ca:0.15, Cr:0.075, B: 0.055, Nb:0.035, C: 0.015, Pr:0.015, surplus is Cu and inevitable impurity；
Manufacture described outer shroud and internal ring comprises the following steps: according to above-mentioned copper alloy chemical composition dispensing, first fine copper is joined In smelting furnace, Control for Kiln Temperature is at 1300 DEG C, and after fine copper melts, copper melt temperature is raised to 1320 DEG C and adds copper-manganese intermediate alloy, After furnace temperature be increased to 1340 DEG C add nickel-copper intermediate alloys；After furnace temperature be increased to 1360 DEG C add molybdenum copper intermediate alloys；After Furnace temperature being increased to 1380 DEG C and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, adds refine cleanser, and refine purifies Agent addition is the 0.9% of furnace charge amount, stirs 50 minutes, stands 100 minutes, treats that slag separates with molten metal, skim, and rear addition is covered Lid agent, the total addition of coverture is the 0.6% of furnace charge amount, again skims, the most respectively to outer shroud and internal ring after standing 40 minutes Pour into a mould；Pouring temperature is 1300 DEG C；The outer shroud obtained and internal ring blank carry out heat treatment: first by outer shroud and internal ring blank Carry out being heated to 700 DEG C, heating rate 100 DEG C/h, it is incubated 3 hours, carries out Quenching Treatment afterwards, hardening media is Water, is heated to 500 DEG C by outer shroud and internal ring blank from room temperature after quenching, and heating rate 100 DEG C/h is incubated 4 hours, drops afterwards Temperature to 350 DEG C, rate of temperature fall 60 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, rate of temperature fall 70 DEG C/h, guarantor Temperature 5 hours, rear air cooling to room temperature,
Internal ring and outer shroud blank are warming up to 650 DEG C, heating rate 150 DEG C/h, it is incubated 1 hour, water hardening afterwards, then Secondary heating base substrate is incubated 3 hours to 500 DEG C, and air cooling of coming out of the stove is to room temperature；Base substrate puts into subzero treatment 5 minutes in liquid nitrogen, at air In go back up to room temperature；
After subzero treatment, external ring inner surface carries out built-up welding, and bead-welding technology is: 200 DEG C of preheatings；During built-up welding, electric current is 62A, voltage For 12V, built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm, and built-up welding is the coldest after completing But；Overlay cladding consists of: Al 14.5%, Mn 4.5%, Mg 2.5%, Co 0.55%, C 0.25%, Si 0.15%, W 0.035%, Surplus is Zn；
Internally ring outer surface carries out built-up welding, and bead-welding technology is: 190 DEG C of preheatings, and during built-up welding, electric current is 56A, and voltage is 12V, built-up welding Speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm, built-up welding complete after Slow cooling；Overlay cladding consists of: Si 12.5%, Cu 4.5%, Fe 2.5%, Zn 1.5%, V 0.85%, Cr 0.45%, Ni 0.055%, surplus is Sn；
The method step manufacturing described ball is:
Carry out melting according to ball material of main part elemental constituent, after cast, obtain blank, ball material of main part is by following unit Element composition: C 0.25%, Si 3.5%, Cr 12.5%, Co 2.5%, Mo 1.5%, V 0.75%, Ti 0.45%, Zr 0.25%, W 0.15%, Ni 0.055%, Al 0.035%, Ce 0.015%, surplus is Fe and inevitable impurity；
By blank through supercool pier molding, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, described heat Process step is, ball after buffing is warming up to 730 DEG C, heating rate 100 DEG C/h, is incubated 4 hours, water hardening afterwards, Heating ball is incubated 3 hours at 500 DEG C again, and air cooling of coming out of the stove is to room temperature；
The ball main body obtained by lappingout carries out surface-coated, and coating consists of: silicon nitride 35 parts, aluminium oxide 15 parts, thick coating Degree 10-20 micron, obtains final ball.

Claims (1)

1. a ball bearing, it is characterised in that: including: outer shroud 1, internal ring 2, ball and keeper, outer shroud coaxially connects with internal ring Connecing setting, multiple balls are evenly distributed between described outer shroud 1 and described internal ring 2, fixing between described outer shroud and described internal ring The keeper that restricted ball moves, ball surface-coated has silicon nitride-silicon oxide aluminium coating,
Outer shroud and internal ring material of main part select copper alloy
Copper alloy chemical composition is (percentage by weight): Mn:12.5, Ni:9.5, Mo:4.5, Al:2.5, Mg: 0.85, Ti 0.75, Zn:0.55, Ca:0.15, Cr:0.075, B: 0.055, Nb:0.035, C: 0.015, Pr:0.015, surplus is Cu and inevitable impurity；
Manufacture described outer shroud and internal ring comprises the following steps: according to above-mentioned copper alloy chemical composition dispensing, first fine copper is joined In smelting furnace, Control for Kiln Temperature is at 1300 DEG C, and after fine copper melts, copper melt temperature is raised to 1320 DEG C and adds copper-manganese intermediate alloy, After furnace temperature be increased to 1340 DEG C add nickel-copper intermediate alloys；After furnace temperature be increased to 1360 DEG C add molybdenum copper intermediate alloys；After Furnace temperature being increased to 1380 DEG C and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, adds refine cleanser, and refine purifies Agent addition is the 0.9% of furnace charge amount, stirs 50 minutes, stands 100 minutes, treats that slag separates with molten metal, skim, and rear addition is covered Lid agent, the total addition of coverture is the 0.6% of furnace charge amount, again skims, the most respectively to outer shroud and internal ring after standing 40 minutes Pour into a mould；Pouring temperature is 1300 DEG C；The outer shroud obtained and internal ring blank carry out heat treatment: first by outer shroud and internal ring blank Carry out being heated to 700 DEG C, heating rate 100 DEG C/h, it is incubated 3 hours, carries out Quenching Treatment afterwards, hardening media is Water, is heated to 500 DEG C by outer shroud and internal ring blank from room temperature after quenching, and heating rate 100 DEG C/h is incubated 4 hours, drops afterwards Temperature to 350 DEG C, rate of temperature fall 60 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, rate of temperature fall 70 DEG C/h, guarantor Temperature 5 hours, rear air cooling to room temperature,
Internal ring and outer shroud blank are warming up to 650 DEG C, heating rate 150 DEG C/h, it is incubated 1 hour, water hardening afterwards, then Secondary heating base substrate is incubated 3 hours to 500 DEG C, and air cooling of coming out of the stove is to room temperature；Base substrate puts into subzero treatment 5 minutes in liquid nitrogen, at air In go back up to room temperature；
After subzero treatment, external ring inner surface carries out built-up welding, and bead-welding technology is: 200 DEG C of preheatings；During built-up welding, electric current is 62A, voltage For 12V, built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm, and built-up welding is the coldest after completing But；Overlay cladding consists of: Al 14.5%, Mn 4.5%, Mg 2.5%, Co 0.55%, C 0.25%, Si 0.15%, W 0.035%, Surplus is Zn；
Internally ring outer surface carries out built-up welding, and bead-welding technology is: 190 DEG C of preheatings, and during built-up welding, electric current is 56A, and voltage is 12V, built-up welding Speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm, built-up welding complete after Slow cooling；Overlay cladding consists of: Si 12.5%, Cu 4.5%, Fe 2.5%, Zn 1.5%, V 0.85%, Cr 0.45%, Ni 0.055%, surplus is Sn；
The method step manufacturing described ball is:
Carry out melting according to ball material of main part elemental constituent, after cast, obtain blank, ball material of main part is by following unit Element composition: C 0.25%, Si 3.5%, Cr 12.5%, Co 2.5%, Mo 1.5%, V 0.75%, Ti 0.45%, Zr 0.25%, W 0.15%, Ni 0.055%, Al 0.035%, Ce 0.015%, surplus is Fe and inevitable impurity；
By blank through supercool pier molding, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, described heat Process step is, ball after buffing is warming up to 730 DEG C, heating rate 100 DEG C/h, is incubated 4 hours, water hardening afterwards, Heating ball is incubated 3 hours at 500 DEG C again, and air cooling of coming out of the stove is to room temperature；
The ball main body obtained by lappingout carries out surface-coated, and coating consists of: silicon nitride 35 parts, aluminium oxide 15 parts, thick coating Degree 10-20 micron, obtains final ball.
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CN114682728A (en) * 2017-11-17 2022-07-01 美题隆公司 Method for manufacturing metal ring by beryllium-copper alloy and metal ring
CN110030275A (en) * 2017-12-15 2019-07-19 斯凯孚公司 Rolling bearing
CN110030275B (en) * 2017-12-15 2022-06-07 斯凯孚公司 Rolling bearing
CN109268395A (en) * 2018-10-12 2019-01-25 翟长生 A kind of angular contact ball bearing ring composite reinforcement process
CN109268395B (en) * 2018-10-12 2020-11-24 翟长生 Composite reinforcement process for angular contact ball bearing ring
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CN111074051A (en) * 2019-12-11 2020-04-28 舞阳钢铁有限责任公司 Production method of steel wear-resisting plate BTW for coal mine

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CN104862525B (en) 2017-03-08

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Application publication date: 20161221