CN103785999A - Method for manufacturing copper steel bearing liner - Google Patents
Method for manufacturing copper steel bearing liner Download PDFInfo
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- CN103785999A CN103785999A CN201410061116.6A CN201410061116A CN103785999A CN 103785999 A CN103785999 A CN 103785999A CN 201410061116 A CN201410061116 A CN 201410061116A CN 103785999 A CN103785999 A CN 103785999A
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- copper
- cylinder
- bearing shell
- steel bearing
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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
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
Abstract
The invention provides a method for manufacturing a copper steel bearing liner. A steel base layer (1) and a copper compound layer (2) are welded into a copper steel composite board through an explosive welding mode, and then the copper steel composite board is machined into the copper steel bearing liner through the grinding tool pressing process, the welding process, the rough machining process, the heat treatment process, the finish machining process and the like, wherein the copper steel composite board is stable in interface bonding, small in vibration, low in noise, long in service life and maintenance cycle, and reliable in operation. The copper steel bearing liner has the advantages of being convenient to manufacture, low in maintenance cost in the process of use, high in comprehensive economic benefits and the like, and can replace similar products overseas, and procurement cost is greatly lowered.
Description
[technical field]
The present invention relates to a kind of manufacture method of bearing shell, be specifically related to a kind of manufacture method of copper steel bearing shell.
[background technology]
Known, copper steel bearing shell is widely used in the fields such as various ships, power plant, steel mill, mining machinery, and most machinery, cast or the milling methods of adopting of of home make copper steel bearing shell combine multiple copper layer and base steel layer, but because copper and steel are dissimilar metal, its physics and chemistry performance difference is large, adopt the copper steel bearing shell of said method manufacture to exist bond strength not high, in use, easily produce the defects such as vibration, noise is large, service life is short.
[summary of the invention]
For overcoming the deficiency existing in background technology, the invention provides a kind of manufacture method of copper steel bearing shell, base steel layer and the multiple layer of copper are welded into copper-steel composite plate by the method for the present invention by explosive welding, then by the operations such as grinding tool compacting, welding, roughing, heat treatment and fine finishining be processed into interface in conjunction with firmly, long service life and reliable copper steel bearing shell.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A manufacture method for copper steel bearing shell, described method specifically comprises the steps:
Base steel layer and the multiple layer of copper are welded into copper-steel composite plate by the first step, the method that first adopts explosive welding, wherein the thickness of the multiple layer of copper is 2～12mm, the thickness of base steel layer is 6～60mm, then the copper-steel composite plate after welding is detected a flaw, require copper-steel composite plate Surface bond rate 100%, as do not reached 100% in conjunction with rate, carry out repair welding processing;
Second step, adopt compacting tool set copper-steel composite plate that above-mentioned steps is obtained to be pressed into two semicircles with straight section, carry out full circle after cooling;
The 3rd step, two semicircles that upper step is obtained close circle, excise two semicircle straight sections, by adopting the method for local welding that two semicircular is welded into a cylinder in excircle part;
The 4th step, the cylinder that upper step is obtained carry out end face processing, require end face vertical with cylinder center;
The 5th step, the cylinder that upper step is obtained carry out end face built-up welding, carry out the built-up welding of the multiple layer of end face copper at the two ends of cylinder;
The 6th step, the cylinder that upper step is obtained heat-treat to eliminate its internal stress;
The 7th step, the cylinder that upper step is obtained carry out machine finishing, until reach the design size of copper steel bearing shell;
The 8th step, the copper steel bearing shell that upper step is obtained adopt line cutting along closing round contact-making surface, cylinder to be cut, and obtain two copper steel bearing shells.
The manufacture method of described copper steel bearing shell, the flaw detection in the described first step is ultrasonic examination.
The manufacture method of described copper steel bearing shell, the tolerance of the inside and outside circle diameter in described second step after full circle is ± 1.5mm.
The manufacture method of described copper steel bearing shell, the weld penetration in described the 3rd step is 4～10mm, length is 8～12mm, at least welds two sections of weld seams in two semicircular on the interface of each gap.
The manufacture method of described copper steel bearing shell, described copper steel bearing shell, in the time having flange requirement, is welded into two semicircular after a cylinder in the 3rd step, and built-up welding or the cast of carrying out copper in the one or both ends of cylinder form described flange blank.
The manufacture method of described copper steel bearing shell, the heat treatment in described the 6th step, heating-up temperature is 600～800 ℃, the heat time is 0.8～2 hour.
Adopt technical scheme as above, the present invention has superiority as described below:
The manufacture method of a kind of copper steel bearing shell of the present invention, the present invention is welded into copper-steel composite plate by the method for explosive welding by base steel layer and the multiple layer of copper, then by the operations such as grinding tool compacting, welding, roughing, heat treatment and fine finishining be processed into interface in conjunction with firmly, vibrate little, noise is little, long service life, maintenance cycle are long and reliable copper steel bearing shell, the present invention has easily manufactured, when use, maintenance cost is low, overall economic efficiency advantages of higher, alternative same kind of products at abroad, greatly reduces purchase cost etc.
[accompanying drawing explanation]
Fig. 1 is the structural representation of copper steel bearing shell in the present invention;
In the drawings: 1, base steel layer; 2, the multiple layer of copper; 3, the multiple layer of end face copper.
[specific embodiment]
Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples;
The manufacture method of a kind of copper steel bearing shell described in 1 by reference to the accompanying drawings, described method specifically comprises the steps:
Multiple to base steel layer 1 and copper layer 2 is welded into copper-steel composite plate by the first step, the method that first adopts explosive welding, wherein the thickness of the multiple layer 2 of copper is 2～12mm, the thickness of base steel layer 1 is 6～60mm, then the copper-steel composite plate after welding is carried out to ultrasonic examination, require copper-steel composite plate Surface bond rate 100%, as do not reached 100% in conjunction with rate, carry out repair welding processing, above-mentioned explosive welding and repair welding applicant declare patent separately, therefore do not do tired stating at this;
Second step, adopt the method for hot pressing copper-steel composite plate above-mentioned steps being obtained by compacting tool set to be pressed into two semicircles with straight section, coolingly rear two semicircular is carried out to full circle, the tolerance of the inside and outside circle diameter after full circle is ± 1.5mm;
The 3rd step, two semicircles that upper step is obtained close circle, excise two semicircle straight sections, by adopting the method for local welding that two semicircular is welded into a cylinder in excircle part, the degree of depth of now controlling weld seam is 4～10mm, length is 8～12mm, in two semicircular, on the interface of each gap, at least weld two sections of weld seams, if now copper steel bearing shell is in the time having flange requirement, two semicircular is being welded into after a cylinder, built-up welding or the cast of carrying out copper in the one or both ends of cylinder form described flange blank;
The 4th step, the cylinder that upper step is obtained adopt lathe to carry out end face processing, now require end face vertical with cylinder center;
The 5th step, the cylinder that upper step is obtained carry out end face built-up welding, carry out the built-up welding of the multiple layer 3 of end face copper at the two ends of cylinder;
The 6th step, the cylinder that upper step is obtained heat-treat to eliminate its internal stress, and when heat treatment, heating-up temperature is 600～800 ℃, and the heat time is 0.8～2 hour;
The 7th step, the cylinder that upper step is obtained carry out machine finishing, until reach the design size of copper steel bearing shell;
The 8th step, the copper steel bearing shell that upper step is obtained adopt line cutting along closing round contact-making surface, cylinder to be cut, and obtain two copper steel bearing shells.
Specific embodiments of the invention are:
Shown in 1, in steel matrix 1, the compound bronze medal of explosive welding is answered layer 2 by reference to the accompanying drawings, and at the multiple layer 3 of end face built-up welding end face copper, the material of steel matrix 1 is Q345R, and thickness is 26mm, is highly 168mm, and external diameter is φ 460mm; The multiple layer 2 of copper is fine copper T2, and thickness is 4mm; The multiple layer 3 of end face copper is cupronickel B 30, and thickness is 4mm.The concrete manufacturing step of this bearing shell is as follows:
The first step, first adopts explosion welding method to produce T2/Q345R composite plate, thickness be 6+30mm through ultrasonic examination, the part that to choose in conjunction with rate be 100% is carried out blanking, blank size is (6+30) X185 X720, two;
Second step, adopts mould that above-mentioned copper-steel composite plate blank is hot pressed into two semicircles with straight section, carries out full circle after cooling, outside diameter φ 468, and tolerance is; Inner circle diameter phi 396, tolerance is ± 1.5mm;
The 3rd step, closes circle, excises two semicircle straight sections, by adopting local welding method to be welded into a cylinder, weld penetration 5～7mm, length 10mm, 2 sections, every limit, totally four sections in excircle part;
The 4th step, carries out end face processing, and cylinder heights is machined to 168mm, guarantees that end face is vertical with cylinder center, and perpendicularity is not more than 1.5mm;
The 5th step, end face built-up welding, at cylinder two ends difference built-up welding one deck B30, thickness is 6mm;
The 6th step, heat treatment stress-removal, Technology for Heating Processing is: 700 ℃ of X1h;
The 7th step, fine finishining, processing cylinder inside and outside circle and end face, final size is inner circle φ 400, and cylindrical is φ 460, and cylinder heights is 176mm;
The 8th step, is divided into two bearing shells by cylinder, adopts line cutting along closing round contact-making surface, cylinder to be separated, and obtains two bearing shells.
Can realize following beneficial effect by enforcement of the present invention:
1) adopt explosive welding copper-steel composite plate, Surface bond rate reaches 100%, and interface shear strength is not less than 100MPa;
2) because copper steel interface is all compound, thereby avoid bearing shell when operation because of the not vibration of compound generation of copper steel, move more steadily, noise is little, and has extended the service life of bearing shell;
3) alternative external similar copper steel bearing shell, has obvious overall economic efficiency etc.
Part not in the detailed description of the invention is prior art.
The embodiment selecting in this article for open object of the present invention, currently thinks suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.
Claims (6)
1. a manufacture method for copper steel bearing shell, is characterized in that: described method specifically comprises the steps:
Base steel layer (1) and the multiple layer of copper (2) are welded into copper-steel composite plate by the first step, the method that first adopts explosive welding, wherein the thickness of the multiple layer of copper (2) is 2～12mm, the thickness of base steel layer (1) is 6～60mm, then the copper-steel composite plate after welding is detected a flaw, require copper-steel composite plate Surface bond rate 100%, as do not reached 100% in conjunction with rate, carry out repair welding processing;
Second step, the copper-steel composite plate that adopts compacting tool set that above-mentioned steps is obtained are pressed into two semicircles with straight section, then carry out full circle;
The 3rd step, two semicircles that upper step is obtained close circle, excise two semicircle straight sections, by adopting the method for local welding that two semicircular is welded into a cylinder in excircle part;
The 4th step, the cylinder that upper step is obtained carry out end face processing, require end face vertical with cylinder center;
The 5th step, the cylinder that upper step is obtained carry out end face built-up welding, carry out the built-up welding of the multiple layer of end face copper (3) at the two ends of cylinder;
The 6th step, the cylinder that upper step is obtained heat-treat to eliminate its internal stress;
The 7th step, the cylinder that upper step is obtained carry out machine finishing, until reach the design size of copper steel bearing shell;
The 8th step, the copper steel bearing shell that upper step is obtained adopt line cutting along closing round contact-making surface, cylinder to be cut, and obtain two copper steel bearing shells.
2. the manufacture method of copper steel bearing shell according to claim 1, is characterized in that: the flaw detection in the described first step is ultrasonic examination.
3. the manufacture method of copper steel bearing shell according to claim 1, is characterized in that: the tolerance of the inside and outside circle diameter in described second step after full circle is ± 1.5mm.
4. the manufacture method of copper steel bearing shell according to claim 1, is characterized in that: the weld penetration in described the 3rd step is 4～10mm, and length is 8～12mm, at least welds two sections of weld seams in two semicircular on the interface of each gap.
5. the manufacture method of copper steel bearing shell according to claim 1, it is characterized in that: described copper steel bearing shell is in the time having flange requirement, two semicircular is welded into after a cylinder in the 3rd step, built-up welding or the cast of carrying out copper in the one or both ends of cylinder form described flange blank.
6. the manufacture method of copper steel bearing shell according to claim 1, is characterized in that: the heat treatment in described the 6th step, and heating-up temperature is 600～800 ℃, the heat time is 0.8～2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061116.6A CN103785999A (en) | 2014-02-24 | 2014-02-24 | Method for manufacturing copper steel bearing liner |
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| CN201410061116.6A CN103785999A (en) | 2014-02-24 | 2014-02-24 | Method for manufacturing copper steel bearing liner |
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| CN103785999A true CN103785999A (en) | 2014-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399951A (en) * | 2021-07-13 | 2021-09-17 | 温州国乐不锈钢管业有限公司 | Processing technology of U-shaped stainless steel pipe |
| CN113909811A (en) * | 2021-10-09 | 2022-01-11 | 重庆跃进机械厂有限公司 | Processing method of two half type bearing bushes |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750352A1 (en) * | 1976-11-10 | 1978-05-11 | Glacier Metal Co Ltd | FLANGE BEARINGS AND METHOD FOR MANUFACTURING FLANGE BEARINGS |
| CN1240889A (en) * | 1998-06-02 | 2000-01-12 | 联合莫古尔威斯巴登有限公司 | Bush and its making method |
| CN101128675A (en) * | 2005-02-22 | 2008-02-20 | 联合莫古尔威斯巴登股份有限公司 | Plain bearing bush, use of the same, and production thereof |
| CN101275606A (en) * | 2008-01-22 | 2008-10-01 | 重庆跃进机械厂 | Manufacturing process of high-power low-speed diesel shaft bushing |
| CN102259250A (en) * | 2010-05-27 | 2011-11-30 | 江苏飞月轴瓦有限公司 | Production technology for stamping and shaping semi-circle bearing bush by double metal plates |
| CN103591144A (en) * | 2013-09-05 | 2014-02-19 | 段绵俊 | Wear-resistant alloy/steel bimetal bearing bush material and preparation method thereof |
-
2014
- 2014-02-24 CN CN201410061116.6A patent/CN103785999A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750352A1 (en) * | 1976-11-10 | 1978-05-11 | Glacier Metal Co Ltd | FLANGE BEARINGS AND METHOD FOR MANUFACTURING FLANGE BEARINGS |
| CN1240889A (en) * | 1998-06-02 | 2000-01-12 | 联合莫古尔威斯巴登有限公司 | Bush and its making method |
| CN101128675A (en) * | 2005-02-22 | 2008-02-20 | 联合莫古尔威斯巴登股份有限公司 | Plain bearing bush, use of the same, and production thereof |
| CN101275606A (en) * | 2008-01-22 | 2008-10-01 | 重庆跃进机械厂 | Manufacturing process of high-power low-speed diesel shaft bushing |
| CN102259250A (en) * | 2010-05-27 | 2011-11-30 | 江苏飞月轴瓦有限公司 | Production technology for stamping and shaping semi-circle bearing bush by double metal plates |
| CN103591144A (en) * | 2013-09-05 | 2014-02-19 | 段绵俊 | Wear-resistant alloy/steel bimetal bearing bush material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399951A (en) * | 2021-07-13 | 2021-09-17 | 温州国乐不锈钢管业有限公司 | Processing technology of U-shaped stainless steel pipe |
| CN113909811A (en) * | 2021-10-09 | 2022-01-11 | 重庆跃进机械厂有限公司 | Processing method of two half type bearing bushes |
| CN113909811B (en) * | 2021-10-09 | 2024-03-22 | 重庆跃进机械厂有限公司 | Processing method of two-half bearing bush |
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Application publication date: 20140514 |