CN114074463A - Multilayer metal sheet for thin-wall sliding bearing - Google Patents
Multilayer metal sheet for thin-wall sliding bearing Download PDFInfo
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- CN114074463A CN114074463A CN202010815581.XA CN202010815581A CN114074463A CN 114074463 A CN114074463 A CN 114074463A CN 202010815581 A CN202010815581 A CN 202010815581A CN 114074463 A CN114074463 A CN 114074463A
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- Prior art keywords
- interlayer
- layer
- structural layer
- copper
- aluminum
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 59
- 239000011229 interlayer Substances 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 22
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 239000011135 tin Substances 0.000 claims description 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 239000007791 liquid phase Substances 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000011247 coating layer Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000009749 continuous casting Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000012071 phase Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000010944 silver (metal) Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- ZWFRZGJUJSOHGL-UHFFFAOYSA-N [Bi].[Cu].[Sn] Chemical compound [Bi].[Cu].[Sn] ZWFRZGJUJSOHGL-UHFFFAOYSA-N 0.000 description 1
- VRUVRQYVUDCDMT-UHFFFAOYSA-N [Sn].[Ni].[Cu] Chemical compound [Sn].[Ni].[Cu] VRUVRQYVUDCDMT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
- B32B15/015—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium the said other metal being copper or nickel or an alloy thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
Abstract
The invention discloses a multilayer metal plate for a thin-wall sliding bearing, which comprises a first structural layer, an interlayer and a second structural layer, wherein the first structural layer is attached to the upper surface of the interlayer, and the second structural layer is attached to the lower surface of the interlayer. The technical scheme is that tests prove that an aluminum (or aluminum-copper alloy) coating layer with the thickness of 5-10 microns obtains a mesophase transition layer of about 3 microns under certain process conditions, an aluminum intermediate layer is well combined with a steel matrix, the bonding strength of a steel/copper interface can be improved by adopting a continuous casting and rolling method through a multi-layer alloy structure, and the liquid-phase copper alloy is diffused into the steel matrix more quickly and has higher solubility, so that the liquid-phase composite steel/copper bimetal bonding strength is higher, and the fatigue resistance and the bearing performance are better.
Description
Technical Field
The invention relates to the field of thin-wall sliding bearings, in particular to a multilayer metal plate for a thin-wall sliding bearing.
Background
The traditional internal combustion engine shaft sleeve and bearing bush material base materials are steel/copper bimetallic materials, compared with steel/aluminum bimetallic materials, the fatigue resistance and the bearing performance of the internal combustion engine shaft sleeve and bearing bush material base materials are better, and the internal combustion engine shaft sleeve and bearing bush material base materials are mainly used for heavy load working conditions of diesel engines and the like. In order to further improve the bearing performance of the material, the traditional lead-containing copper alloy is replaced by lead-free copper alloy, various alloys such as copper-tin-nickel, copper-tin-bismuth, copper-aluminum and the like are developed, and the strength of the copper alloy serving as the intermediate layer is continuously improved. However, the bonding problem between the steel/copper dissimilar metals is still very prominent, especially in the process of bimetal compounding by adopting a powder metallurgy mode, and the bonding strength is still greatly influenced by insufficient diffusion of the steel/copper dissimilar atoms in a solid phase.
The bonding strength of the steel/copper interface can be improved by adopting the continuous casting and rolling method. The liquid phase copper alloy diffuses into a steel matrix more quickly and has higher solubility, so that the main reasons of higher bonding strength, better fatigue resistance and better bearing property of the liquid phase composite steel/copper bimetal are probably caused. However, this process is not easily controlled and even risks corrosion of the steel grain boundaries due to the formation of copper.
The thin-wall sliding bearing mainly refers to a shaft sleeve or a bearing bush of an internal combustion engine. The thin-wall sliding bearing uses the multilayer metal plate as the base material for processing the shaft sleeve and the bearing bush, and plays an important role in the fatigue resistance and the bearing performance of the internal combustion engine key parts.
Along with the improvement of the energy conversion efficiency requirement of an internal combustion engine, the detonation pressure of a combustion chamber is increased, the integral working temperature of the engine is increased, higher requirements are provided for the fatigue resistance and the bearing performance of a bearing bush and a shaft sleeve, the traditional thin-wall sliding bearing base material cannot meet the use requirement, and a copper alloy layer is cracked and peeled off, so that the problem is solved by the multilayer metal plate for the thin-wall sliding bearing.
Disclosure of Invention
In order to overcome the defects of the prior art, the thin-wall sliding bearing belongs to multi-field coupling working conditions such as stress, temperature, friction and the like, usually, copper/steel bimetal is adopted as a base material to meet various performance requirements, but the problem of combination cracking between two metals is easy to occur.
The technical purpose of the invention is realized by the following technical scheme:
the multilayer metal plate for the thin-wall sliding bearing comprises a first structural layer, an interlayer and a second structural layer, wherein the first structural layer is attached to the upper surface of the interlayer, and the second structural layer is attached to the lower surface of the interlayer.
Further, the thickness of the interlayer is 5-10 microns, the interlayer is an aluminum-copper alloy, and the copper content in the aluminum-copper alloy is 0.3-1.5% by weight.
Furthermore, the second structural layer is made of steel materials, the second structural layer is made of low-carbon steel with the carbon content lower than 0.15%, and the steel materials have good structural strength.
Furthermore, a transition region with the aluminum content of less than 10% exists in the interface of the interlayer and the second structure layer, or aluminum-copper alloy is adopted, so that aluminum element and iron element are easy to diffuse, an intermediate phase can be formed, and the principle of forming a stable bonding layer by common brazing connection is met.
Further, the copper layer of the first structural layer is tin bronze or lead bronze, and in order to ensure that the copper layer can be effectively attached to the surface of the interlayer.
Furthermore, alloy elements such as Ni, Sn, Cu, Ag and the like are respectively added into the interlayer, and the comparison shows that the diffusion speed of the copper layer and the interlayer can be improved by adding Cu, the defects on the interface of the interlayer/copper are few, the bonding strength reaches more than 320MPa and is obviously higher than that of a bimetallic material without the interlayer, when the content of copper is too high, the diffusion reaction of the interlayer and steel is insufficient, no obvious diffusion reaction layer exists, and the action of the interlayer is weakened.
In conclusion, the invention has the following beneficial effects:
1. tests prove that an intermediate phase transition layer of about 3 microns is obtained on an aluminum (or aluminum-copper alloy) coating layer with the thickness of 5-10 microns under certain process conditions, the aluminum intermediate layer is well combined with a steel matrix, the bonding strength of a steel/copper interface can be improved by adopting a continuous casting and rolling method through a multi-layer alloy structure, and the liquid-phase copper alloy is diffused into the steel matrix more quickly and has higher solubility, so that the liquid-phase composite steel/copper bimetal bonding strength is higher, and the fatigue resistance and the bearing performance are better;
2. the interlayer is respectively added with Ni, Sn, Cu, Ag and other alloy elements, and the comparison shows that the diffusion speed of the copper layer and the interlayer can be improved by adding Cu, the defects on the interlayer/copper interface are few, the bonding strength reaches more than 320MPa and is obviously higher than that of a bimetallic material without the interlayer, when the copper content is too high, the diffusion reaction of the interlayer and steel is insufficient, no obvious diffusion reaction layer exists, and the action of the interlayer is weakened.
Drawings
FIG. 1 is an overall configuration diagram of a multilayer metal plate material for a thin sliding bearing according to the present invention.
In the figure, 1, a first structural layer; 2. an interlayer; 3. and a second structural layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1, a multi-layered metal plate for a thin-walled sliding bearing according to a preferred embodiment of the present invention includes: first structural layer 1, intermediate layer 2 and second structural layer 3, intermediate layer 2 is the aluminium copper alloy, first structural layer 1 is adhered to 2 upper surfaces of intermediate layer, second structural layer 3 is adhered to 2 lower upper surfaces of intermediate layer, the thickness of intermediate layer 2 is 5-10 microns, and copper content in the aluminium copper alloy is 0.3-1.5% weight percent, second structural layer 3 is the steel material, and the steel material has good structural strength, promotes the support.
However, the aluminum is clad on the steel surface, the bonding strength is not high, and even the aluminum is very easy to generate thermal cracks along the bonding surface, the high intersection interface between the intermediate phase of the existing double-layer structure and two metals is the main cause of the cracks, firstly, the method for coating the aluminum on the steel surface is changed, and particularly the temperature of the base material is changed; secondly, controlling the thickness of the coated aluminum, controlling the reaction speed of the aluminum and the steel and controlling the stress formed by the intermediate phase, and through experimental verification, the aluminum (or aluminum-copper alloy) coating layer with the thickness of 5-10 microns obtains the intermediate phase transition layer with the thickness of about 3 microns under certain process conditions, the aluminum intermediate layer is well combined with the steel matrix, the interface of the interlayer 2 and the second structure layer 3 has a transition region with the aluminum content of less than 3 microns, the aluminum content in the transition region is not less than 10 percent, or the aluminum-copper alloy is adopted, the aluminum element and the iron element are easy to diffuse, the intermediate phase can be formed, the principle of forming a stable combined layer by common braze welding connection is met, the second structure layer 3 is low-carbon steel with the carbon content of less than 0.15 percent,
the copper layer of the first structural layer 1 is tin bronze or lead bronze, in order to ensure that the copper layer can be effectively attached to the surface of the interlayer 2, alloy elements such as Ni, Sn, Cu and Ag are respectively added into the interlayer 2, and the comparison shows that the diffusion speed of the copper layer and the interlayer can be improved by adding Cu, the defects on the interface of the interlayer/copper are few, the bonding strength reaches over 320MPa and is obviously superior to that of a bimetallic material without the interlayer, when the copper content is too high, the diffusion reaction of the interlayer and steel is insufficient, no obvious diffusion reaction layer exists, and the effect of the interlayer is weakened.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A multilayer metal sheet for a thin-walled sliding bearing, characterized in that: the sandwich structure comprises a first structural layer (1), an interlayer (2) and a second structural layer (3), wherein the first structural layer (1) is attached to the upper surface of the interlayer (2), and the second structural layer (3) is attached to the lower upper surface of the interlayer (2).
2. The multilayer metal sheet for a thin-walled sliding bearing according to claim 1, characterized in that: the thickness of the interlayer (2) is 5-10 microns, the interlayer (2) is an aluminum-copper alloy, and the copper content in the aluminum-copper alloy is 0.3-1.5% by weight.
3. The multilayer metal sheet for a thin-walled sliding bearing according to claim 2, characterized in that: the second structural layer (3) is made of steel materials, and the second structural layer (3) is made of low-carbon steel with the carbon content lower than 0.15%.
4. The multilayer metal sheet for a thin-walled sliding bearing according to claim 3, characterized in that: the interface of the interlayer (2) and the second structural layer (3) has a transition region with the aluminum content of less than 10 percent, wherein the transition region is less than 3 microns, or aluminum-copper alloy is adopted.
5. The multilayer metal sheet for a thin-walled sliding bearing according to claim 1, characterized in that: the copper layer of the first structural layer (1) is tin bronze or lead bronze.
6. The multilayer metal sheet for a thin-walled sliding bearing according to claim 1, characterized in that: the interlayer (2) is respectively added with alloy elements such as Ni, Sn, Cu, Ag and the like, and the bonding strength reaches over 320 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010815581.XA CN114074463A (en) | 2020-08-13 | 2020-08-13 | Multilayer metal sheet for thin-wall sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010815581.XA CN114074463A (en) | 2020-08-13 | 2020-08-13 | Multilayer metal sheet for thin-wall sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114074463A true CN114074463A (en) | 2022-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010815581.XA Pending CN114074463A (en) | 2020-08-13 | 2020-08-13 | Multilayer metal sheet for thin-wall sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114074463A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715259A (en) * | 1952-03-05 | 1955-08-16 | Johnson Bronze Co | Steel backed aluminum lined bearings |
| US4188079A (en) * | 1977-08-22 | 1980-02-12 | Daido Metal Company Ltd. | Multiple-layer metal bearing for use in a large-size engine |
| US4206268A (en) * | 1977-10-22 | 1980-06-03 | Glyco-Metall-Werke Daelen & Loos Gmbh | Plain bearing laminate having slide-layer alloy based on copper-lead-tin |
| US5087529A (en) * | 1988-04-23 | 1992-02-11 | Glyco Aktiengesellschaft | Laminate material |
| US5185216A (en) * | 1989-11-20 | 1993-02-09 | Daido Metal Company Ltd. | Composite plating film for sliding member |
| US5545489A (en) * | 1992-09-11 | 1996-08-13 | Daido Metal Company Ltd. | Multi-layer sliding bearing having excellent fretting property |
| US20090025837A1 (en) * | 2005-05-21 | 2009-01-29 | Peter Neuhaus | Antifriction composite, use of the antifriction composite, and method for producing the antifriction composite |
| US20090263053A1 (en) * | 2005-05-13 | 2009-10-22 | Gerd Andler | Plain Bearing Composite Material, Use Thereof and Production Methods Therefor |
-
2020
- 2020-08-13 CN CN202010815581.XA patent/CN114074463A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715259A (en) * | 1952-03-05 | 1955-08-16 | Johnson Bronze Co | Steel backed aluminum lined bearings |
| US4188079A (en) * | 1977-08-22 | 1980-02-12 | Daido Metal Company Ltd. | Multiple-layer metal bearing for use in a large-size engine |
| US4206268A (en) * | 1977-10-22 | 1980-06-03 | Glyco-Metall-Werke Daelen & Loos Gmbh | Plain bearing laminate having slide-layer alloy based on copper-lead-tin |
| US5087529A (en) * | 1988-04-23 | 1992-02-11 | Glyco Aktiengesellschaft | Laminate material |
| US5185216A (en) * | 1989-11-20 | 1993-02-09 | Daido Metal Company Ltd. | Composite plating film for sliding member |
| US5545489A (en) * | 1992-09-11 | 1996-08-13 | Daido Metal Company Ltd. | Multi-layer sliding bearing having excellent fretting property |
| US20090263053A1 (en) * | 2005-05-13 | 2009-10-22 | Gerd Andler | Plain Bearing Composite Material, Use Thereof and Production Methods Therefor |
| US20090025837A1 (en) * | 2005-05-21 | 2009-01-29 | Peter Neuhaus | Antifriction composite, use of the antifriction composite, and method for producing the antifriction composite |
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