CN107100936A - A kind of motor bearing and its manufacture method - Google Patents

A kind of motor bearing and its manufacture method Download PDF

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Publication number
CN107100936A
CN107100936A CN201710302001.5A CN201710302001A CN107100936A CN 107100936 A CN107100936 A CN 107100936A CN 201710302001 A CN201710302001 A CN 201710302001A CN 107100936 A CN107100936 A CN 107100936A
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welding
incubated
built
bearing shell
oil groove
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CN107100936B (en
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陈鹏
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Dezhou Yate Motor Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/04—Hardening by cooling below 0 degrees Celsius
    • 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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • 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
    • C22C38/005—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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports
    • 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
    • F16C2204/62—Low carbon steel, i.e. carbon content below 0.4 wt%
    • 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
    • F16C2220/02—Shaping by casting
    • F16C2220/06—Shaping by casting in situ casting or moulding
    • 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
    • F16C2220/40—Shaping by deformation without removing material
    • F16C2220/44—Shaping by deformation without removing material by rolling
    • 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
    • F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
    • 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
    • F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
    • F16C2223/16—Hardening, e.g. carburizing, carbo-nitriding with carbo-nitriding
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/22—Internal combustion engines

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
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  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Sliding-Contact Bearings (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A kind of motor bearing and its manufacture method, the bearing shell is in tiles semi-cylindrical, bearing shell semi-cylindrical inner surface offers horizontal oil groove, oilhole is offered on the oil groove, oil groove cell body surface is coated with titanium carbide coating, bearing shell semi-cylindrical inner surface portion beyond degreasing tank cell body surface has aluminium alloy overlay cladding, bearing shell semi-cylindrical outer surface has copper alloy overlay cladding, being handled by inner surface of bearing bush built-up welding causes axle sleeve to reach higher wearability and fatigue performance, and corresponding fatigue behaviour is also improved；By carrying out built-up welding to bearing shell outer surface, anti-corrosion, the high temperature resistant of material are improved, bearing shell carries out subzero treatment and improves its impact resistance and fatigue behaviour.

Description

A kind of motor bearing and its manufacture method
Technical field
The present invention relates to a kind of motor bearing and its manufacture method, belongs to technical field of motors.
Background technology
Bearing shell is to make the relative mechanical organ slided between loading end for supporting axial workpiece and making, and it is used as key foundation Parts have widely in the heavy mechanical equipments such as lathe, motor, generator, internal combustion engine, rolling machinery, mining machinery Using.Particularly in internal combustion engine, mechanical performance, functional reliability and the life-span that the performance of bearing shell is applied to suffer from directly The influence connect.Mechanical load is increasing, and high-power low-speed motor is to the property such as the fatigue strength of bearing shell, compliance, bond strength Higher and higher requirement can be proposed.Bearing shell has very high mark as the key components and parts of big work(motor machine to the performance of bearing shell It is accurate.
The content of the invention
A kind of motor bearing manufacture method, the bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface is offered Horizontal oil groove, offers oilhole on the oil groove, and oil groove cell body surface is coated with titanium carbide coating, degreasing tank cell body surface with Outer bearing shell semi-cylindrical inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.3-0.4 ﹪, Si：4-5 ﹪, Ni：2-3 ﹪, Cr 1-2 ﹪, Co：0.7-0.8 ﹪, Al：0.5-0.6 ﹪, W：0.2-0.3 ﹪, Cu：0.08-0.09 ﹪, Mg：0.07-0.08 ﹪, Zn：0.04-0.05 ﹪, Nb：0.02-0.03 ﹪, Ti：0.01-0.02 ﹪, Pr：0.01-0.02 ﹪, surplus is Fe and can not kept away The impurity ratio preparation raw material exempted from, raw material melting, cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is carried out first Heating, is warming up to 750 DEG C, 120 DEG C/h of heating rate, is incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C of rate of temperature fall/small When, be incubated 3 hours, after be cooled to 500 DEG C again, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4-5%, Al 2-3%, Mo 1-2%, Fe 1-2%, Zn 0.8-0.9%, Sn 0.2- 0.3%, C 0.2-0.3%, surplus are Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6-7%, Cr 4- 5%, Cu 1-2%, Ti 0.6-0.7%, Mn 0.3-0.4%, Si 0.2-0.3%, Nb 0.03-0.04%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
Described a kind of motor bearing, beyond after the coating of workpiece oil groove cell body surface to workpiece degreasing tank cell body surface Bearing shell semi-cylindrical inner surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, heap Weldering speed degree is 8mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials For：Zn 6%, Cr 4%, Cu 1%, Ti 0.6%, Mn 0.3%, Si 0.2%, Nb 0.03%, surplus is Al.
Described a kind of motor bearing, beyond after the coating of workpiece oil groove cell body surface to workpiece degreasing tank cell body surface Bearing shell semi-cylindrical inner surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, heap Weldering speed degree is 8mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials For：Zn 7%, Cr 5%, Cu 2%, Ti 0.7%, Mn 0.4%, Si 0.3%, Nb 0.04%, surplus is Al.
Described a kind of motor bearing, beyond after the coating of workpiece oil groove cell body surface to workpiece degreasing tank cell body surface Bearing shell semi-cylindrical inner surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, heap Weldering speed degree is 8mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials For：Zn 7%, Cr 5%, Cu 2%, Ti 0.7%, Mn 0.4%, Si 0.3%, Nb 0.04%, surplus is Al.
Oil groove cell body section into semicircle or rectangle,
Semi-cylindrical inner surface oil groove cell body table is also included to the carbo-nitriding that bearing shell semi-cylindrical inner surface and outer surface are carried out Face.
Foregoing invention content is relative to the beneficial effect of prior art：1）By being carried out to shaft sleeve oil groove cell body surface Applying coating improves cell body decay resistance；2）The intensity that ferrous alloy material of the present invention fully meets bearing shell material of main part will Ask；3）Hardness and intensity fatigue behaviour that 4 grades of gradient carbo-nitriding heat treatments improve bearing shell are carried out to bearing shell, it is to avoid split Line； 4）Being handled by inner surface of bearing bush built-up welding causes axle sleeve to reach higher wearability and fatigue performance, corresponding fatigability Can also it be improved；5）By carrying out built-up welding to bearing shell outer surface, anti-corrosion, the high temperature resistant of material are improved.6）Bearing shell carries out deep cooling Processing improves its impact resistance and fatigue behaviour.
Brief description of the drawings
Fig. 1 is bearing shell front view；
Fig. 2 is bearing shell top view.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now describe the present invention's in detail Embodiment.
Motor bearing as shown in Figure 1-2, the bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal stroke To oil groove cell body（1）, oilhole is offered on the oil groove（2）, oil groove cell body surface is coated with titanium carbide coating（Do not show in figure Go out）, the bearing shell semi-cylindrical inner surface beyond degreasing tank cell body surface has aluminium alloy overlay cladding（3）, outside bearing shell semi-cylindrical Surface has copper alloy overlay cladding（4）.
Embodiment 1
A kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, in institute State and oilhole is offered on oil groove, oil groove cell body surface is coated with the bearing shell semicircle beyond titanium carbide coating, degreasing tank cell body surface Cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.3 ﹪, Si：4 ﹪, Ni：The ﹪ of 2 ﹪, Cr 1, Co：0.7 ﹪, Al：0.5 ﹪, W：0.2 ﹪, Cu：0.08 ﹪, Mg：0.07 ﹪, Zn：0.04 ﹪, Nb：0.02 ﹪, Ti：0.01 ﹪, Pr：0.01 ﹪, surplus be Fe and inevitable impurity ratio preparation raw material, raw material melting, cast, after the demoulding, obtained casting Ingot is heat-treated：Ingot casting is heated first, 750 DEG C are warming up to, 120 DEG C/h of heating rate is incubated 3 hours, rear drop Temperature is to 600 DEG C, 50 DEG C/h of rate of temperature fall, is incubated 3 hours, after be cooled to 500 DEG C again, be incubated 5 hours, after be air-cooled to room Temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4%, Al 2%, Mo 1%, Fe 1%, Zn 0.8%, Sn 0.2%, C 0.2%, surplus For Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6%, Cr 4%, Cu 1%, Ti 0.6%, Mn 0.3%, Si0.2%, Nb 0.03%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
Embodiment 2
A kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, in institute State and oilhole is offered on oil groove, oil groove cell body surface is coated with the bearing shell semicircle beyond titanium carbide coating, degreasing tank cell body surface Cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.4 ﹪, Si：5 ﹪, Ni：3 ﹪, Cr 2 ﹪, Co：0.8 ﹪, Al：0.6 ﹪, W：0.3 ﹪, Cu：0.09 ﹪, Mg：0.08 ﹪, Zn：0.05 ﹪, Nb：0.03 ﹪, Ti：0.02 ﹪, Pr：0.02 ﹪, surplus is Fe and inevitable impurity ratio preparation raw material, raw material melting, cast, the demoulding Afterwards, the ingot casting obtained is heat-treated：Ingot casting is heated first, 750 DEG C are warming up to, 120 DEG C/h of heating rate is protected Temperature 3 hours, after be cooled to 600 DEG C, 50 DEG C/h of rate of temperature fall is incubated 3 hours, after be cooled to 500 DEG C again, insulation 5 is small When, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 5%, Al 3%, Mo 2%, Fe 2%, Zn 0.9%, Sn 0.3%, C 0.3%, surplus For Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 7%, Cr 5%, Cu 2%, Ti 0.7%, Mn 0.4%, Si 0.3%, Nb 0.04%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
Embodiment 3
A kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, in institute State and oilhole is offered on oil groove, oil groove cell body surface is coated with the bearing shell semicircle beyond titanium carbide coating, degreasing tank cell body surface Cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.35 ﹪, Si：4.5 ﹪, Ni：2.5 ﹪, Cr 1.5 ﹪, Co：0.75 ﹪, Al：0.55 ﹪, W：0.25 ﹪, Cu：0.085 ﹪, Mg：0.075 ﹪, Zn：0.045 ﹪, Nb： 0.025 ﹪, Ti：0.015 ﹪, Pr：0.015 ﹪, surplus be Fe and inevitable impurity ratio preparation raw material, raw material melting, Cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is heated first, 750 DEG C, heating rate 120 are warming up to DEG C/h, be incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C/h of rate of temperature fall is incubated 3 hours, after be cooled to 500 again DEG C, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4.5%, Al 2.5%, Mo 1.5%, Fe 1.5%, Zn 0.85%, Sn 0.25%, C 0.25%, surplus is Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6.5%, Cr 4.5%, Cu 1.5%, Ti 0.65%, Mn 0.35%, Si 0.25%, Nb 0.035%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
Embodiment 4
A kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, in institute State and oilhole is offered on oil groove, oil groove cell body surface is coated with the bearing shell semicircle beyond titanium carbide coating, degreasing tank cell body surface Cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.34 ﹪, Si：4.2 ﹪, Ni：2.2 ﹪, Cr 1.4 ﹪, Co：0.73 ﹪, Al：0.52 ﹪, W：0.23 ﹪, Cu：0.083 ﹪, Mg：0.074 ﹪, Zn：0.042 ﹪, Nb： 0.023 ﹪, Ti：0.013 ﹪, Pr：0.012 ﹪, surplus be Fe and inevitable impurity ratio preparation raw material, raw material melting, Cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is heated first, 750 DEG C, heating rate 120 are warming up to DEG C/h, be incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C/h of rate of temperature fall is incubated 3 hours, after be cooled to 500 again DEG C, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4.1%, Al 2.2%, Mo 1.1%, Fe 1.2%, Zn 0.84%, Sn 0.23%, C 0.22%, surplus is Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6.3%, Cr 4.4%, Cu 1.3%, Ti 0.62%, Mn 0.34%, Si 0.23%, Nb 0.034%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
Embodiment 5
A kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, in institute State and oilhole is offered on oil groove, oil groove cell body surface is coated with the bearing shell semicircle beyond titanium carbide coating, degreasing tank cell body surface Cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.37 ﹪, Si：4.7 ﹪, Ni：2.8 ﹪, Cr 1.9 ﹪, Co：0.76 ﹪, Al：0.57 ﹪, W：0.28 ﹪, Cu：0.089 ﹪, Mg：0.078 ﹪, Zn：0.047 ﹪, Nb： 0.026 ﹪, Ti：0.017 ﹪, Pr：0.018 ﹪, surplus be Fe and inevitable impurity ratio preparation raw material, raw material melting, Cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is heated first, 750 DEG C, heating rate 120 are warming up to DEG C/h, be incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C/h of rate of temperature fall is incubated 3 hours, after be cooled to 500 again DEG C, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4.7%, Al 2.8%, Mo 1.9%, Fe 1.7%, Zn 0.88%, Sn 0.27%, C 0.26%, surplus is Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6.7%, Cr 4.8%, Cu 1.9%, Ti 0.66%, Mn 0.36%, Si 0.27%, Nb 0.036%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.

Claims (5)

1. a kind of motor bearing manufacture method, the bearing shell is in tiles semi-cylindrical, bearing shell semi-cylindrical inner surface offers horizontal stroke To oil groove, oilhole is offered on the oil groove, oil groove cell body surface is coated with beyond titanium carbide coating, degreasing tank cell body surface Bearing shell semi-cylindrical inner surface there is aluminium alloy overlay cladding, bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.3-0.4 ﹪, Si：4-5 ﹪, Ni：2-3 ﹪, Cr 1-2 ﹪, Co：0.7-0.8 ﹪, Al：0.5-0.6 ﹪, W：0.2-0.3 ﹪, Cu：0.08-0.09 ﹪, Mg：0.07-0.08 ﹪, Zn：0.04-0.05 ﹪, Nb：0.02-0.03 ﹪, Ti：0.01-0.02 ﹪, Pr：0.01-0.02 ﹪, surplus is Fe and can not kept away The impurity ratio preparation raw material exempted from, raw material melting, cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is carried out first Heating, is warming up to 750 DEG C, 120 DEG C/h of heating rate, is incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C of rate of temperature fall/small When, be incubated 3 hours, after be cooled to 500 DEG C again, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4-5%, Al 2-3%, Mo 1-2%, Fe 1-2%, Zn 0.8-0.9%, Sn 0.2- 0.3%, C 0.2-0.3%, surplus are Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6-7%, Cr 4- 5%, Cu 1-2%, Ti 0.6-0.7%, Mn 0.3-0.4%, Si 0.2-0.3%, Nb 0.03-0.04%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
2. a kind of motor bearing as claimed in claim 1, to workpiece degreasing tank cell body after being coated to workpiece oil groove cell body surface Bearing shell semi-cylindrical inner surface beyond surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, electricity Press as 12V, built-up welding speed is 8mm/s, argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding； Weld overlay materials are：Zn 6%, Cr 4%, Cu 1%, Ti 0.6%, Mn 0.3%, Si 0.2%, Nb 0.03%, surplus is Al.
3. a kind of motor bearing as claimed in claim 1, to workpiece degreasing tank cell body after being coated to workpiece oil groove cell body surface Bearing shell semi-cylindrical inner surface beyond surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, electricity Press as 12V, built-up welding speed is 8mm/s, argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding； Weld overlay materials are：Zn 7%, Cr 5%, Cu 2%, Ti 0.7%, Mn 0.4%, Si 0.3%, Nb 0.04%, surplus is Al.
4. a kind of motor bearing as claimed in claim 1, to workpiece degreasing tank cell body after being coated to workpiece oil groove cell body surface Bearing shell semi-cylindrical inner surface beyond surface carries out built-up welding, and bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, electricity Press as 12V, built-up welding speed is 8mm/s, argon flow amount is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding； Weld overlay materials are：Zn 7%, Cr 5%, Cu 2%, Ti 0.7%, Mn 0.4%, Si 0.3%, Nb 0.04%, surplus is Al.
5. a kind of motor bearing：The bearing shell is in tiles semi-cylindrical, and bearing shell semi-cylindrical inner surface offers horizontal oil groove, Oilhole is offered on the oil groove, oil groove cell body surface is coated with the bearing shell half beyond titanium carbide coating, degreasing tank cell body surface Face of cylinder inner surface has aluminium alloy overlay cladding, and bearing shell semi-cylindrical outer surface has copper alloy overlay cladding,
It is characterized in that：Bearing shell preparation method：Comprise the following steps：According to：C:0.34 ﹪, Si：4.2 ﹪, Ni：2.2 ﹪, Cr 1.4 ﹪, Co：0.73 ﹪, Al：0.52 ﹪, W：0.23 ﹪, Cu：0.083 ﹪, Mg：0.074 ﹪, Zn：0.042 ﹪, Nb： 0.023 ﹪, Ti：0.013 ﹪, Pr：0.012 ﹪, surplus be Fe and inevitable impurity ratio preparation raw material, raw material melting, Cast, after the demoulding, obtained ingot casting is heat-treated：Ingot casting is heated first, 750 DEG C, heating rate 120 are warming up to DEG C/h, be incubated 3 hours, after be cooled to 600 DEG C, 50 DEG C/h of rate of temperature fall is incubated 3 hours, after be cooled to 500 again DEG C, be incubated 5 hours, after be air-cooled to room temperature,
Forging：Ingot casting is heated to 1050 DEG C and is incubated 4 hours, is forged afterwards, 1050 DEG C of starting forging temperature, 870 DEG C of final forging temperature,
Rolling：Blank after forging is heated, 1030 DEG C of heating-up temperature, split rolling method uses 6 passages, passage phase during cogging To reduction ratio control 11%, mill speed control slab after 10mm/s, cogging is incubated at 820 DEG C, and soaking time 4 is small When, after be warming up to 1050 DEG C, soaking time was controlled at 3 hours, then carried out hot rolling, the passage of hot rolling 9, bloom pass phase to blanket To reduction ratio 7%, other passages are controlled 15% with respect to reduction ratio, and mill speed is controlled in 30mm/s, and finishing temperature is 850 ℃；Room temperature is air-cooled to after rolling,
Machining：Sheet material is machined out and opens up out oil groove and oilhole,
Curling：Sheet material is curled into semicircle,
Heat treatment：Workpiece is warming up to 950 DEG C, 100 DEG C/h of heating rate is incubated 5 hours, afterwards water hardening, adds again Hot base substrate is incubated 3 hours at 700 DEG C, comes out of the stove and is air-cooled to room temperature；Base substrate is put into subzero treatment 10 minutes in liquid nitrogen, in atmosphere Go back up to room temperature；
Carbo-nitriding：Carbo-nitriding heat treatment is carried out to workpiece semi-cylindrical inner surface and semi-cylindrical outer surface after heat treatment, Ooze process by force：950-980 DEG C of scope of temperature, carbon potential and nitrogen gesture take level Four step, carbon potential 1.2-1.4%, nitrogen gesture 0.4-0.6%, 3h is incubated, carbon potential is then reduced to 1.0-1.1%, rise nitrogen gesture to 0.7-0.9% is incubated 3h, then reduces carbon potential to 0.7-0.9%, Nitrogen gesture is raised to 1.0-1.1%, 4h is incubated, carbon potential is finally reduced to 0.4-0.5%, rise nitrogen gesture to 1.2-1.6% is incubated 4h；By force It is diffused after oozing, diffusion process：Control furnace temperature is down to 930 DEG C, is incubated 3h, is cooled to 870 DEG C, is incubated 4h, diffusion process Carbon-potential control is between 0.9-1.0%, and nitrogen potential control is between 1.1-1.2%；It is air-cooled to room temperature；
Built-up welding：Built-up welding is carried out to workpiece semi-cylindrical outer surface after carbo-nitriding, bead-welding technology is：230 DEG C of preheatings, during built-up welding, Electric current is 65A, and voltage is 12V, and built-up welding speed is 8mm/s, and argon flow amount is 12L/min, and overlay cladding thickness is 2mm；, heap is soldered Into rear Slow cooling；Weld overlay materials are：Ni 4.1%, Al 2.2%, Mo 1.1%, Fe 1.2%, Zn 0.84%, Sn 0.23%, C 0.22%, surplus is Cu；
Oil groove is coated：In oil groove cell body surface shelling-out of titanium carbide coating, coating layer thickness 0.4mm,
Built-up welding：To the bearing shell semi-cylindrical inner surface beyond workpiece degreasing tank cell body surface after being coated to workpiece oil groove cell body surface Built-up welding is carried out, bead-welding technology is：170 DEG C of preheatings, during built-up welding, electric current is 60A, and voltage is 12V, and built-up welding speed is 8mm/s, argon gas Flow is 9L/min, and overlay cladding thickness is 2mm；, Slow cooling after the completion of built-up welding；Weld overlay materials are：Zn 6.3%, Cr 4.4%, Cu 1.3%, Ti 0.62%, Mn 0.34%, Si 0.23%, Nb 0.034%, surplus is Al；
Final heat treatment：By workpiece heat to 650 DEG C be incubated 4 hours, then be cooled to 400 DEG C be incubated 2 hours, obtain final axle Watt.
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