CN103909243A - Production process for alloy sliding bearings - Google Patents
Production process for alloy sliding bearings Download PDFInfo
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- CN103909243A CN103909243A CN201210591294.0A CN201210591294A CN103909243A CN 103909243 A CN103909243 A CN 103909243A CN 201210591294 A CN201210591294 A CN 201210591294A CN 103909243 A CN103909243 A CN 103909243A
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- alloy
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- box hat
- sliding bearings
- steel casing
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Abstract
The invention discloses a production process for alloy sliding bearings. Prefabricated qualified-component alloy particles are disposed in a steel casing to be put in a mid-frequency inductor and rotate around the axis, the input mid-frequency inductor current produce strong surface eddies on the steel casing and the surface eddies permeate into the steel casing inner layer in a layer-by-layer mode, the production process for alloy sliding bearings is characterized in that due to the temperature of the steel casing is rapidly increased, the alloy particles are fused, the alloy liquid is attached to the steel casing inner surface uniformly by the centrifugal force produced by rotation, and nonmetallic inclusions and metallic oxides are separated from alloy. According to the production process, fusion and solidification processes are completed in a short time, the structure and the performance are outstanding, and the alloy usage rate is high; steel-back copper-lead alloy bimetallic sliding bearings produced through the process can completely replace full-copper alloy sliding bearings used commonly in China at present. The production process has the advantages that the bearing capacity can be improved apparently, the design physical dimension is reduced, the service life is prolonged, the usage safety is greatly improved, and wide application prospects are provided.
Description
Technical field
The present invention relates to technical field of bearings, specifically a kind of alloy sliding axis holds production technology.
Background technology
Along with the continuous loading speed-raising of diesel engine, scientists has been developed various materials to meet the requirement of sliding bearing.Copper and alloy-based self-lubricating material thereof have good wear resistance and good mechanical property, are widely used in fields such as diesel locomotive, boats and ships, wind-powered electricity generation and engineering machinery.But there are some researches show, acid bronze alloy damages axle journal under dangerous Frotteurism due to the reduction of adsorption strength under certain condition, recommended replacement is the brittle break that steel backing copper bimetallic sliding bearing is eliminated bearing.In addition, different from the linear expansion coefficient of pedestal because of bearing, usually cause bearing that displacement occurs and make complete equipment produce fault, cause serious economy and credibility loss.The technique of at present, making steel backing Pot metal bimetal sliding bearing both at home and abroad generally has static pouring method, powder sintering, conventional centrifugal casting method, eddy-current heating particle centrifugal casting method etc.Static pouring method technique is outmoded, productivity ratio is low, adhesive strength between bimetallic is lower; Automaticity and the production efficiency of powder sintering are high, but production process complexity, sinter layer alloy density are low, adhesive strength between bimetallic is unstable; The investment of conventional centrifugal casting method is little, and cost is low, but adhesive strength between product quality and bimetallic is stable not; Adhesive strength and fatigue strength between mechanical performance, the bimetallic of eddy-current heating particle centrifugal casting method products made thereby are all higher, reliable in quality, and production cost is lower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of alloy sliding axis to hold production technology for above-mentioned prior art, first by the alloying pellet dress people box hat of prefabricated qualified composition, be placed in intermediate frequency inductor and around axle center rotation, defeated people's intermediate frequency inductor electric current produces powerful surface eddy and successively penetrates box hat nexine on box hat.
Described alloy sliding axis holds production technology, it is characterized in that, make the box hat melted alloy particle that heats up rapidly, the centrifugal force that rotation produces is evenly built-up in aluminium alloy on box hat inner surface, makes non-metallic inclusion and metal oxide isolate alloy body simultaneously again.
Described alloy sliding axis holds production technology, it is characterized in that, after heating stops, carrying out the outside cooling aluminium alloy that makes fast and freeze solidly in steel matrix completely and produce good metallurgical binding in the extremely short time, thereby obtain the thin-wall tube-shaped blank of the good bimetallic of adhesive property.
Fusing and process of setting that alloy sliding axis of the present invention holds production technology all complete at short notice, tissue and function admirable, and alloy utilization rate is high.Adopt steel backing Pot metal bimetal sliding bearing prepared by this technique can replace the full alloy copper sliding axletree that current China is generally used completely, after use, can significantly improve bearing capacity, and the physical dimension of minimizing design, increase the service life, greatly improve safety in utilization, be with a wide range of applications.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
A kind of alloy sliding axis holds production technology, first by the alloying pellet dress people box hat of prefabricated qualified composition, be placed in intermediate frequency inductor and around axle center rotation, defeated people's intermediate frequency inductor electric current produces powerful surface eddy and successively penetrates box hat nexine on box hat.Described alloy sliding axis holds production technology, it is characterized in that, make the box hat melted alloy particle that heats up rapidly, the centrifugal force that rotation produces is evenly built-up in aluminium alloy on box hat inner surface, makes non-metallic inclusion and metal oxide isolate alloy body simultaneously again.Described alloy sliding axis holds production technology, it is characterized in that, after heating stops, carrying out the outside cooling aluminium alloy that makes fast and freeze solidly in steel matrix completely and produce good metallurgical binding in the extremely short time, thereby obtain the thin-wall tube-shaped blank of the good bimetallic of adhesive property.
The above; it is only the preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. an alloy sliding axis holds production technology, it is characterized in that, first, by the alloying pellet dress people box hat of prefabricated qualified composition, be placed in intermediate frequency inductor and around axle center rotation, defeated people's intermediate frequency inductor electric current produces powerful surface eddy and successively penetrates box hat nexine on box hat.
2. alloy sliding axis according to claim 1 holds production technology, it is characterized in that, make the box hat melted alloy particle that heats up rapidly, the centrifugal force that rotation produces is evenly built-up in aluminium alloy on box hat inner surface, makes non-metallic inclusion and metal oxide isolate alloy body simultaneously again.
3. alloy sliding axis according to claim 2 holds production technology, it is characterized in that, after heating stops, carrying out the outside cooling aluminium alloy that makes fast and freeze solidly in steel matrix completely and produce good metallurgical binding in the extremely short time, thereby obtain the thin-wall tube-shaped blank of the good bimetallic of adhesive property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591294.0A CN103909243A (en) | 2012-12-31 | 2012-12-31 | Production process for alloy sliding bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591294.0A CN103909243A (en) | 2012-12-31 | 2012-12-31 | Production process for alloy sliding bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103909243A true CN103909243A (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210591294.0A Pending CN103909243A (en) | 2012-12-31 | 2012-12-31 | Production process for alloy sliding bearings |
Country Status (1)
| Country | Link |
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| CN (1) | CN103909243A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574483A (en) * | 2014-08-05 | 2017-04-19 | 哈里伯顿能源服务公司 | Downhole tools with low dilution zone bearing cladding and cladding processes |
| CN112008057A (en) * | 2020-09-01 | 2020-12-01 | 上海润成机电科技有限公司 | Bimetal sliding bearing |
-
2012
- 2012-12-31 CN CN201210591294.0A patent/CN103909243A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574483A (en) * | 2014-08-05 | 2017-04-19 | 哈里伯顿能源服务公司 | Downhole tools with low dilution zone bearing cladding and cladding processes |
| CN112008057A (en) * | 2020-09-01 | 2020-12-01 | 上海润成机电科技有限公司 | Bimetal sliding bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140709 |