CN109402366A - A method of improving bearing shell steel back performance - Google Patents
A method of improving bearing shell steel back performance Download PDFInfo
- Publication number
- CN109402366A CN109402366A CN201811175299.9A CN201811175299A CN109402366A CN 109402366 A CN109402366 A CN 109402366A CN 201811175299 A CN201811175299 A CN 201811175299A CN 109402366 A CN109402366 A CN 109402366A
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- China
- Prior art keywords
- bearing shell
- steel back
- raw material
- spraying
- shell steel
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Classifications
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- 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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of methods for improving bearing shell steel back performance, include the following steps: S1, rolling process: reducing the section of plate bearing shell raw material because of the compression by roll the gap that plate bearing shell raw material passes through a pair of of rotary roller；S2, it bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, forms it into semicircle；S3, Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, dimensioned and coating treatment are carried out after the completion of heating, obtains bearing shell finished product.The present invention is adjustable to promote bearing shell steel back hardness, promote bearing shell deformation stability, by the hardness for controlling steel back, meet design requirement, the size changing amount for reducing bearing shell, the stability that makes to assemble and run improve, and the intensity for solving existing bearing shell steel back is lower, the problem of causing bearing shell steel back to be easily deformed in assembly and operational process, influence normal use.
Description
Technical field
The present invention relates to bearing shell steel back technical field, specially a kind of method for improving bearing shell steel back performance.
Background technique
Bearing shell is the part of sliding bearing and journal contact, and shape is the semi-cylindrical of tiles, very smooth, general with green
The wear-resistant materials such as copper, antifriction alloy are made, and under special circumstances, can be made of timber, engineering plastics or rubber.Bearing shell has whole
Body formula and two kinds of dissection type, monoblock type bearing shell is commonly referred to as axle sleeve.Monoblock type bearing shell is whether there is or not oil duct and has two kinds of oil duct.Bearing shell with
Axle journal is gap-matched, and is not rotated with the axis generally.
The processing method of a kind of bearing shell of the disclosure of the invention of Patent No. CN105570305A and bearing shell, the invention use
The particle of high energy injection bombards processing in the antifriction alloy layer surface of bearing shell, when processing, can correspondingly generate micro-convex structure, dimpling
Structure is capable of forming supporting gap, in period of adjustment early stage, can quickly be distributed in inner surface of bearing bush in favor of lubricating oil
In all microcellular structures, with the relative motion of bearing shell, the micro-convex structure of microcellular structure can be smoothed, and form normal operating conditions
Under plane+microcellular structure form, achieve the purpose that further to improve lubrication circumstances, but using the technology processing bearing shell steel
It is lower to carry on the back intensity.
Although the intensity of bearing shell steel back is lower in conclusion the prior art can improve lubrication circumstances, lead to bearing shell steel
Back is easily deformed in assembly and operational process, influences normal use, for this purpose, it is proposed that a kind of improve bearing shell steel back performance
Method.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for improving bearing shell steel back performance, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: it is a kind of improve bearing shell steel back performance method, including
Following steps:
S1, rolling process: the gap that plate bearing shell raw material passes through a pair of of rotary roller is made into plate axis because of the compression by roll
The section of watt raw material reduces；
S2, it bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, forms it into semicircle
Shape；
S3, Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained.
Preferably, the temperature being heat-treated in the step S3 is 200-280 DEG C, soaking time 60-120min.
Preferably, the heating rate being heat-treated in the step S3 is 1-5 DEG C/min, and heat-treating machine uses internal coiling
Circlewise or other shapes of heating coil is heated.
Preferably, the step S3 intermediate bushing steel back needs to carry out sandblasting before carrying out coating treatment, and coating treatment includes
Primary spraying and secondary spraying, finally heated solidification.
Preferably, the step S3 is in coating treatment, once when spraying, by coating spraying in bearing shell steel back surface, spray
The direction of rifle operation is parallel with coated article face always, and the spray gun speed of service is 200-250mm/s, sprayed coating thickness 0.02-
0.03mm is put into drying oven under conditions of 135 DEG C together with plastics magnetic sheet and dries 40-45min.
Preferably, the step S3 is in coating treatment, when secondary spraying, by coating spraying in bearing shell surface, spray gun fortune
Capable direction is parallel with coated article face always, and the spray gun speed of service is 250-300mm/s, sprayed coating thickness 0.02-
0.03mm is put into drying oven under conditions of 135 DEG C together with plastics magnetic sheet and dries 45-50min.
Compared with prior art, the beneficial effects of the present invention are: the present invention is adjustable to promote bearing shell steel back hardness, axis is promoted
Watt deformation stability meets design requirement, reduces the size changing amount of bearing shell by controlling the hardness of steel back, make assembly and
The stability of operation improves, and the intensity for solving existing bearing shell steel back is lower, causes bearing shell steel back in assembly and operational process
The problem of being easily deformed, influencing normal use.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: a method of improving bearing shell steel back performance, includes the following steps: to include such as
Lower step:
S1, rolling process: the gap that plate bearing shell raw material passes through a pair of of rotary roller is made into plate axis because of the compression by roll
The section of watt raw material reduces；
S2, it bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, forms it into semicircle
Shape；
S3, Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained.
Embodiment one:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is that 200 DEG C of soaking times are 120min, at heat
The heating rate of reason is 1 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 200mm/s, and sprayed coating thickness 0.02mm is put into drying oven together with plastics magnetic sheet
Dry 45min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 250mm/s, and sprayed coating thickness 0.03mm is put into drying together with plastics magnetic sheet
Furnace dries 45min under conditions of 135 DEG C.
Embodiment two:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is 220 DEG C, soaking time 70min, at heat
The heating rate of reason is 2 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 220mm/s, and sprayed coating thickness 0.02mm is put into drying oven together with plastics magnetic sheet
Dry 45min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 240mm/s, and sprayed coating thickness 0.03mm is put into drying together with plastics magnetic sheet
Furnace dries 50min under conditions of 135 DEG C.
Embodiment three:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is 250 DEG C, soaking time 90min, at heat
The heating rate of reason is 3 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 230mm/s, and sprayed coating thickness 0.03mm is put into drying oven together with plastics magnetic sheet
Dry 45min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 250mm/s, and sprayed coating thickness 0.03mm is put into drying together with plastics magnetic sheet
Furnace dries 50min under conditions of 135 DEG C.
Example IV:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is 200 DEG C, soaking time 80min, at heat
The heating rate of reason is 4 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 230mm/s, and sprayed coating thickness 0.03mm is put into drying oven together with plastics magnetic sheet
Dry 45min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 300mm/s, and sprayed coating thickness 0.03mm is put into drying together with plastics magnetic sheet
Furnace dries 50min under conditions of 135 DEG C.
Embodiment five:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is 270 DEG C, soaking time 100min, at heat
The heating rate of reason is 3 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 220mm/s, and sprayed coating thickness 0.03mm is put into drying oven together with plastics magnetic sheet
Dry 40min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 280mm/s, and sprayed coating thickness 0.02mm is put into drying together with plastics magnetic sheet
Furnace dries 45min under conditions of 135 DEG C.
Embodiment six:
Plate bearing shell raw material: being passed through the gap of a pair of of rotary roller by rolling process, because of the compression by roll, keeps plate bearing shell former
The section of material reduces；It bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, is formed it into
It is semicircle；Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained, the temperature of heat treatment is 250 DEG C, soaking time 120min, at heat
The heating rate of reason is 5 DEG C/min, and heat-treating machine uses internal coiling circlewise or other shapes of heating coil is added
Heat, bearing shell steel back need to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally plus
Heat cure, in coating treatment, when primary spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation will always with
Coated article face is parallel, and the spray gun speed of service is 250mm/s, and sprayed coating thickness 0.03mm is put into drying oven together with plastics magnetic sheet
Dry 45min under conditions of 135 DEG C, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation will be always
Parallel with coated article face, the spray gun speed of service is 300mm/s, and sprayed coating thickness 0.03mm is put into drying together with plastics magnetic sheet
Furnace dries 50min under conditions of 135 DEG C.
The present invention is adjustable to promote bearing shell steel back hardness, promotes bearing shell deformation stability, full by controlling the hardness of steel back
Sufficient design requirement reduces the size changing amount of bearing shell, and the stability that makes to assemble and run improves, and bearing shell steel backing material usually makes
With Low alloy mild steel, there is such material distortion aging property to be heat-treated that is, under certain pre- deformation condition to it,
Carbon atom diffusion aggregation therein limits the movement of dislocation, and therefore the deformation resistance of steel increases, mechanical performance is promoted, such as hard
Degree, intensity etc..Simultaneously after Overheating Treatment, material internal stress release, distribution is improved, the deformation behavior of bearing shell
It tends towards stability.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of method for improving bearing shell steel back performance, characterized by the following steps:
S1, rolling process: the gap that plate bearing shell raw material passes through a pair of of rotary roller is made into plate axis because of the compression by roll
The section of watt raw material reduces；
S2, it bends integer: the plate bearing shell raw material Jing Guo rolling process being bent by bullodozer, forms it into semicircle
Shape；
S3, Low Temperature Heat Treatment: the plate bearing shell raw material after press-bending shaping is put into heat-treating machine and is heated, after the completion of heating
Dimensioned and coating treatment are carried out, bearing shell finished product is obtained.
2. a kind of method for improving bearing shell steel back performance according to claim 1, it is characterised in that: hot in the step S3
The temperature of processing is 200-280 DEG C, soaking time 60-120min.
3. a kind of method for improving bearing shell steel back performance according to claim 1, it is characterised in that: hot in the step S3
The heating rate of processing be 1-5 DEG C/min, and heat-treating machine using internal coiling circlewise or other shapes of heating coil into
Row heating.
4. a kind of method for improving bearing shell steel back performance according to claim 1, it is characterised in that: the step S3 axis
Watt steel back needs to carry out before carrying out coating treatment sandblasting, and coating treatment includes primary spraying and secondary spraying, finally heated solid
Change.
5. a kind of method for improving bearing shell steel back performance according to claim 1, it is characterised in that: the step S3 is being applied
In layer processing, once when spraying, by coating spraying in bearing shell steel back surface, the direction of spray gun operation is flat with coated article face always
Row, the spray gun speed of service are 200-250mm/s, and sprayed coating thickness 0.02-0.03mm is put into drying oven together with plastics magnetic sheet and exists
40-45min is dried under conditions of 135 DEG C.
6. a kind of method for improving bearing shell steel back performance according to claim 1, it is characterised in that: the step S3 is being applied
In layer processing, when secondary spraying, by coating spraying in bearing shell surface, the direction of spray gun operation is parallel with coated article face always,
The spray gun speed of service is 250-300mm/s, and sprayed coating thickness 0.02-0.03mm is put into drying oven 135 together with plastics magnetic sheet
45-50min is dried under conditions of DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175299.9A CN109402366A (en) | 2018-10-10 | 2018-10-10 | A method of improving bearing shell steel back performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175299.9A CN109402366A (en) | 2018-10-10 | 2018-10-10 | A method of improving bearing shell steel back performance |
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| Publication Number | Publication Date |
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| CN109402366A true CN109402366A (en) | 2019-03-01 |
Family
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| CN201811175299.9A Pending CN109402366A (en) | 2018-10-10 | 2018-10-10 | A method of improving bearing shell steel back performance |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009534597A (en) * | 2006-05-17 | 2009-09-24 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Sliding bearing, method for producing such a sliding bearing and use thereof |
| CN104289391A (en) * | 2014-10-24 | 2015-01-21 | 江苏万达特种轴承有限公司 | Bearing surface protection treatment method |
| CN104907771A (en) * | 2015-06-01 | 2015-09-16 | 陈鹏 | Motor bearing bush |
| CN105032745A (en) * | 2015-06-08 | 2015-11-11 | 烟台大丰轴瓦有限责任公司 | Method for reinforcing coating on surface of bearing bush alloy layer |
| CN107020485A (en) * | 2015-06-01 | 2017-08-08 | 陈鹏 | A kind of manufacture method of internal combustion engine bearing |
-
2018
- 2018-10-10 CN CN201811175299.9A patent/CN109402366A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009534597A (en) * | 2006-05-17 | 2009-09-24 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Sliding bearing, method for producing such a sliding bearing and use thereof |
| CN104289391A (en) * | 2014-10-24 | 2015-01-21 | 江苏万达特种轴承有限公司 | Bearing surface protection treatment method |
| CN104907771A (en) * | 2015-06-01 | 2015-09-16 | 陈鹏 | Motor bearing bush |
| CN107020485A (en) * | 2015-06-01 | 2017-08-08 | 陈鹏 | A kind of manufacture method of internal combustion engine bearing |
| CN105032745A (en) * | 2015-06-08 | 2015-11-11 | 烟台大丰轴瓦有限责任公司 | Method for reinforcing coating on surface of bearing bush alloy layer |
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Application publication date: 20190301 |