CN102173120A - Steel-copper composite set - Google Patents
Steel-copper composite set Download PDFInfo
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- CN102173120A CN102173120A CN2011100223684A CN201110022368A CN102173120A CN 102173120 A CN102173120 A CN 102173120A CN 2011100223684 A CN2011100223684 A CN 2011100223684A CN 201110022368 A CN201110022368 A CN 201110022368A CN 102173120 A CN102173120 A CN 102173120A
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- steel
- copper
- external member
- copper alloy
- congruent melting
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Abstract
The invention discloses a steel-copper composite set, comprising a copper alloy inner sleeve and a steel outer sleeve, wherein a steel-copper co-melting layer is arranged between the copper alloy inner sleeve and the steel outer sleeve. In the steel-copper composite set, a co-melting layer with high interface bond strength and structural stability is formed on an interface of the copper alloy inner sleeve and the steel outer sleeve so that the whole steel-copper composite set has the advantages of meeting the requirement for wearing resistance and various performances, saving copper materials and lowering production cost as in comparison with a pure copper set.
Description
Technical field
The present invention relates to the compound external member of a kind of steel-copper, belong to mechanical fitting and make the field.
Background technology
Copper sheathing spare is subjected to user's favor always, and it is compact more that it can make that not only rotating shaft cooperates with bearing, frame etc., can be good at protecting rotating shaft simultaneously, improves the service life of rotating shaft.But the price of metallic copper is higher, and is deficient day by day grand strategy resource, also is the less rare heavy metals of reserves.Widely used a large amount of wear-resisting external members are mostly by the copper alloy manufacturing in big machinery, boats and ships, and for the consideration of saving precious resource, reduction product cost, the compound external member of steel-copper is a kind of approach with copper take place of steel.The manufacturing process of present domestic steel copper compound structure mainly contains three classes.The one, the process and assemble method is promptly earlier made steel loop and copper ring respectively, carries out machine cut processing then respectively, again copper ring hot charging or extruding is entered steel loop inside; This method is to the requirement on machining accuracy height, and the hot charging of big part is difficult to realize.The 2nd, at the inner additional copper of steel loop, be about to make the inner methods such as centrifugal casting, sintering, built-up welding that adopt of good steel loop, make copper form certain thickness copper ring attached to steel loop inside.Above-mentioned two kinds of method complex procedures, the production cost height, and because steel and copper do not realize that the interface is fused, always there is gap more or less in two kinds of material intersections, after through long-time the use, problems such as burn into becomes flexible appear in the faying face of two kinds of materials easily, cause equipment precision decline, noise increase, service life of equipment to reduce.The 3rd, steel and copper are made the bimetallic hot rolled plate through hot rolling, there is certain atom diffusion at steel copper interface under the high temperature, and the aforementioned external member of interface junction composition and division in a proportion is good, but need be welded into external member at last, and be difficult to make thick big bimetallic external member, welding procedure is complicated and be difficult to guarantee weldquality.Exactly because the existence of the problems referred to above, the application of the compound external member of steel-copper is less.
Summary of the invention
At the deficiency that prior art exists, technical problem to be solved by this invention is, a kind of simple in structure, with low cost, compound external member of steel-copper that can satisfy instructions for use is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the compound external member of a kind of steel-copper, comprise cover and steel overcoat in the copper alloy, and in described copper alloy, be equipped with steel copper congruent melting layer between cover and the steel overcoat.
Cover one in the compound external member of described steel-copper, described steel copper congruent melting its internal layer of layer and copper alloy, its outer and steel overcoat one.
The compound external member of described steel-copper, its material of described steel copper congruent melting layer formed the ecto-entad transition change, carried out the transition to 100% copper alloy of innermost layer by outermost 100% steel.
The compound external member of described steel-copper, described copper alloy are aluminium bronze or manganese brass, also can select other copper alloys for use.
The advantage of the compound external member of steel-copper of the present invention is: interface bond strength height of the cover and the interface of steel overcoat formation, constitutionally stable congruent melting layer in copper alloy, refinement the thick dendrite of steel in the interface, can prolong workpiece service life.The compound external member of steel-copper is compared with the fine copper external member, has promptly satisfied the requirement on the wear-resisting and various performance, has saved copper raw material again, has reduced production cost.
Description of drawings
The present invention is described in more detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the compound external member of steel-copper of the present invention;
Fig. 2 is the electron scanning micrograph of the steel copper congruent melting layer of the embodiment of the invention 1.
The specific embodiment
Embodiment 1
As shown in Figure 1, the compound external member of a kind of steel-copper comprises interior cover 1 of a manganese brass and steel overcoat 2, is steel copper congruent melting layer 3 between cover 1 and the steel overcoat 2 in manganese brass, cover 1 one in the internal layer of steel copper congruent melting layer 3 and the manganese brass, its skin and steel overcoat 2 one.Described congruent melting layer 3 forms through centrifuging process, as shown in Figure 2, the large dendritic crystal of steel is by refinement in the congruent melting layer 3, its material is formed the ecto-entad transition change, carry out the transition to 100% aluminium bronze of innermost layer by outermost 100% steel, that to be ecto-entad transit to the few copper of steel by the many copper of steel to intermediate materials less is many, its manganese brass and structure of steel fusion are good, fine and close no shrinkage porosite, improved the structural stability of product greatly, the disposable formation of congruent melting layer 3 structure, and also the thickness of congruent melting layer 3 can require suitably to adjust according to the environment for use and the stress of the concrete compound external member of steel-copper, controllable thickness during manufacturing, the scope of application is extensive.
Embodiment 2
As shown in Figure 1, the compound external member of a kind of steel-copper comprises interior cover 1 of an aluminium bronze and steel overcoat 2, is steel copper congruent melting layer 3 between cover 1 and the steel overcoat 2 in aluminium bronze, cover 1 one in the internal layer of steel copper congruent melting layer 3 and the aluminium bronze, its skin and steel overcoat 2 one.Described congruent melting layer 3 forms through centrifuging process, the large dendritic crystal of steel is by refinement in the congruent melting layer 3, its material composition ecto-entad even variation, carry out the transition to 100% aluminium bronze of innermost layer by outermost 100% steel, that to be ecto-entad transit to the few copper of steel by the many copper of steel to intermediate materials less is many, its copper alloy and structure of steel fusion are good, fine and close no shrinkage porosite, improved the structural stability of product greatly, the disposable formation of congruent melting layer 3 structure, and the thickness of congruent melting layer 3 can require suitably adjust according to the environment for use of the concrete compound external member of steel-copper and stress, controllable thickness during manufacturing, and the scope of application is extensive.
Claims (4)
1. the compound external member of steel-copper comprises cover and steel overcoat in the copper alloy, it is characterized in that: be equipped with steel copper congruent melting layer between cover and the steel overcoat in described copper alloy.
2. the compound external member of steel-copper according to claim 1 is characterized in that: cover one in described steel copper congruent melting its internal layer of layer and the copper alloy, its outer and steel overcoat one.
3. the compound external member of steel-copper according to claim 2 is characterized in that: its material of described steel copper congruent melting layer formed the ecto-entad transition change, carried out the transition to 100% copper alloy of innermost layer by outermost 100% steel.
4. the compound external member of steel-copper according to claim 3 is characterized in that: described copper alloy is aluminium bronze or manganese brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100223684A CN102173120A (en) | 2011-01-11 | 2011-01-11 | Steel-copper composite set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100223684A CN102173120A (en) | 2011-01-11 | 2011-01-11 | Steel-copper composite set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102173120A true CN102173120A (en) | 2011-09-07 |
Family
ID=44516460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100223684A Pending CN102173120A (en) | 2011-01-11 | 2011-01-11 | Steel-copper composite set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102173120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753042A (en) * | 2014-01-20 | 2014-04-30 | 东北大学 | Copper and steel bimetal bridging welding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204715Y (en) * | 1994-08-12 | 1995-08-09 | 北京市门头沟区科峰双金属配件厂 | Copper-steel workpiece |
-
2011
- 2011-01-11 CN CN2011100223684A patent/CN102173120A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204715Y (en) * | 1994-08-12 | 1995-08-09 | 北京市门头沟区科峰双金属配件厂 | Copper-steel workpiece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753042A (en) * | 2014-01-20 | 2014-04-30 | 东北大学 | Copper and steel bimetal bridging welding method |
| CN103753042B (en) * | 2014-01-20 | 2016-05-11 | 东北大学 | A kind of copper base-steel bi-metal bridging welding method |
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Application publication date: 20110907 |