CN102922123A - Method for welding stainless filter element - Google Patents
Method for welding stainless filter element Download PDFInfo
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- CN102922123A CN102922123A CN2012104443334A CN201210444333A CN102922123A CN 102922123 A CN102922123 A CN 102922123A CN 2012104443334 A CN2012104443334 A CN 2012104443334A CN 201210444333 A CN201210444333 A CN 201210444333A CN 102922123 A CN102922123 A CN 102922123A
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- stainless steel
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- steel filter
- screen cloth
- filter core
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Abstract
The invention discloses a method for welding a stainless steel element. By means of the method, the technical problem that the existing method for welding the stainless steel filter element is low in efficiency is solved. The technical scheme is that a middle layer (7) is placed between every two layers of mesh cloth to serve as a forming structure, the forming structures are placed between an upper pressing head (2) and a lower pressing head (4) in a vacuum furnace in laminating mode, a solder mask layer (5) is placed between every two forming structures, the solder mask layers (5) are further placed between the upper pressing head (2) and the stainless steel mesh cloth and between the lower pressing head (4) and the stainless steel mesh cloth, then diffusion welding is performed, and after the welding is finished, stamping is performed according to the appearance of a stainless steel filter element monomer (8) to form the stainless steel filter element monomer (8). Multilayer mesh cloth can be processed in one step by means of the method, a plurality of stainless steel filter element monomers can be formed, and welding efficiency of the stainless steel filter element is greatly improved.
Description
Technical field
The present invention relates to a kind of welding method of filter core, particularly relate to a kind of welding method of stainless steel filter core.
Background technology
The stainless steel filter core is the vitals in engine and the gear-box lubricating oil system, can prevent that impurity such as particle in the engine from entering outside oil circuit and resulting in blockage, and in addition, the stainless steel filter core also has the advantages such as anticorrosive, high temperature resistant.The stainless steel filter core is combined by two stainless steel mesh cloth peripheral welds and forms.The welding of known stainless steel filter core adopts microplasma, laser as thermal source more, and the method for employing built-up welding is finished the welding of stainless steel mesh cloth.Because these two kinds of welding methods need to melt powder, easily cause welded seam area to have internal stress and hold caducous solid particle, simultaneously, the method needs one by one part to process, and has the low shortcoming of production efficiency.
Summary of the invention
In order to overcome the inefficient deficiency of welding method of existing stainless steel filter core, the invention provides a kind of welding method of stainless steel filter core.The method is at first to place one deck intermediate layer as molding structure between every two-layer screen cloth, between the stacked seaming chuck and push-down head of putting into vacuum drying oven of this molding structure, place solder mask between every formable layer structure, also place solder mask between upper and lower pressure head and the screen cloth, after carry out Diffusion Welding, carry out punching press according to stainless steel filter core monomer profile after welding is finished, form stainless steel filter core monomer.Because the method once can be processed the multilayer screen cloth, forms a plurality of stainless steel filter core monomers, can greatly improve the welding efficiency of stainless steel filter core.
The technical solution adopted for the present invention to solve the technical problems is: a kind of welding method of stainless steel filter core is characterized in may further comprise the steps:
(a) screen cloth 6 is cut into square, prepares the intermediate layer 7 measure-alike with screen cloth 6, distribute on the intermediate layer 7 a plurality of and the equal-sized intermediate layer of filter core profile bar, the material in screen cloth 6 and intermediate layer 7 all is stainless steels.
(b) screen cloth 6 and intermediate layer 7 are placed on Ultrasonic Cleaning in the absolute ethyl alcohol, wash and dry with pure absolute ethyl alcohol again.
(c) place one deck intermediate layer 7 between every two-layer screen cloth 6 as molding structure, between the stacked seaming chuck 2 and push-down head 4 of putting into vacuum drying oven 1 of this molding structure, place solder mask 5 between every formable layer structure, upper and lower pressure head 2,4 and screen cloth 6 between also place solder mask 5, after carry out Diffusion Welding.
(d) the Diffusion Welding process vacuumizes vacuum drying oven 1 first, when vacuum drying oven 1 interior vacuum reaches 6.0 * 10
-2Pa～1.0 * 10
-3Begin heating during Pa and heated up in vacuum drying oven 1 chamber, heating rate is 2～20 ℃/min, in the temperature-rise period, keeps the front pressure 0～0.6MPa of weldering.When vacuum drying oven 1 cavity temperature rises to 800～1100 ℃ when reaching welding temperature, apply welding pressure 1～8MPa.And keep 800～1100 ℃ welding temperature, and keep pressure 15～120Mins.Then be cooled to 400～600 ℃ with 5～20 ℃/min, cool to room temperature with the furnace.In the cooling procedure, maintenance pressure is 0～0.6MPa.
(e) after welding is finished, remove solder mask 5, obtain having the molding structure layer of a plurality of stainless steel filter core monomers 8, through punching press or artificial the shearing, obtain stainless steel filter core monomer 8.
The thickness in described intermediate layer 7 is 0.02～1mm, preferred 0.1～0.3mm.
The wire diameter of described screen cloth 6 is 0.01～0.1mm, preferred 0.03-0.08mm.The aperture of screen cloth 6 is 20～500 μ m, preferred 50～120 μ m.
Described solder mask 5 be aluminium oxide ceramics thin slice or splitting any.
The invention has the beneficial effects as follows: because to place one deck intermediate layer between every two-layer screen cloth as molding structure, between the stacked seaming chuck and push-down head of putting into vacuum drying oven of this molding structure, place solder mask between every formable layer structure, also place solder mask between upper and lower pressure head and the stainless steel mesh cloth, after carry out Diffusion Welding, carry out punching press according to stainless steel filter core monomer profile after welding is finished, form stainless steel filter core monomer.Because the method once can be processed the multilayer screen cloth, forms a plurality of stainless steel filter core monomers, has greatly improved the welding efficiency of stainless steel filter core.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Fig. 1 is the various materials of the welding method of stainless steel filter core of the present invention distribution situation figure in vacuum drying oven.
Fig. 2 is the schematic diagram of the inventive method institute soldering stainless steel filter core monomer.
Fig. 3 adopts the inventive method to weld the three-dimensional enlarged drawing of the stainless steel filter core that obtains.
Fig. 4 is the inventive method blanking schematic diagram.
Among the figure, the 1-vacuum drying oven; The 2-seaming chuck; The 4-push-down head; The 5-solder mask; The 6-screen cloth; 7-intermediate layer bar; 8-stainless steel filter core monomer.
The specific embodiment
Following examples are with reference to Fig. 1～3.
Place one deck intermediate layer 7 between step 3, the every two-layer screen cloth 6 as molding structure, between the stacked seaming chuck 2 and push-down head 4 of putting into vacuum drying oven 1 of this molding structure, place solder mask 5 between every formable layer structure, upper and lower pressure head 2,4 and screen cloth 6 between also place solder mask 5, after carry out Diffusion Welding.Solder mask 5 is aluminium oxide ceramics thin slice or splitting.
After step 5, welding are finished, remove solder mask 5, obtain having the molding structure layer of a plurality of stainless steel filter core monomers 8, through punching press or artificial the shearing, obtain stainless steel filter core monomer 8.
Claims (8)
1. the welding method of a stainless steel filter core is characterized in that may further comprise the steps:
(a) screen cloth (6) is cut into square, prepares the intermediate layer (7) measure-alike with screen cloth (6), intermediate layer (7) the upper a plurality of and equal-sized intermediate layer of filter core profile bar that distributes, the material of screen cloth (6) and intermediate layer (7) all is stainless steels;
(b) screen cloth (6) and intermediate layer (7) are placed on Ultrasonic Cleaning in the absolute ethyl alcohol, wash and dry with pure absolute ethyl alcohol again;
(c) place one deck intermediate layer (7) between every two-layer screen cloth (6) as molding structure, between the stacked seaming chuck (2) and push-down head (4) of putting into vacuum drying oven (1) of this molding structure, place solder mask (5) between every formable layer structure, also place solder mask (5) between upper and lower pressure head (2,4) and the screen cloth (6), after carry out Diffusion Welding;
(d) the Diffusion Welding process vacuumizes vacuum drying oven (1) first, and vacuum reaches 6.0 * 10 in vacuum drying oven (1)
-2Pa～1.0 * 10
-3Begin heating during Pa and heated up in vacuum drying oven (1) chamber, heating rate is 2～20 ℃/min, in the temperature-rise period, keeps the front pressure 0～0.6MPa of weldering; When vacuum drying oven (1) cavity temperature rises to 800～1100 ℃ when reaching welding temperature, apply welding pressure 1～8MPa; And keep 800～1100 ℃ welding temperature, and keep pressure 15～120Mins; Then be cooled to 400～600 ℃ with 5～20 ℃/min, cool to room temperature with the furnace; In the cooling procedure, maintenance pressure is 0～0.6MPa;
(e) after welding is finished, remove solder mask (5), obtain having the molding structure layer of a plurality of stainless steel filter core monomers (8), through punching press or artificial the shearing, obtain stainless steel filter core monomer (8).
2. the welding method of stainless steel filter core according to claim 1, it is characterized in that: the thickness of described intermediate layer (7) is 0.02～1mm, preferred 0.1～0.3mm.
3. the welding method of stainless steel filter core according to claim 1 and 2 is characterized in that: the preferred 0.1～0.3mm of thickness of described intermediate layer (7).
4. the welding method of stainless steel filter core according to claim 1, it is characterized in that: the wire diameter of described screen cloth (6) is 0.01～0.1mm.
5. it is characterized in that: the preferred 0.03～0.08mm of wire diameter of described screen cloth (6) according to claim 1 or the welding method of 4 described stainless steel filter cores.
6. according to claim 1 or the welding method of 4 described stainless steel filter cores, it is characterized in that: the aperture of screen cloth 6 is 20～500 μ m.
7. it is characterized in that: preferred 50～120 μ m in the aperture of screen cloth 6 according to claim 1 or the welding method of 4 described stainless steel filter cores.
8. the welding method of stainless steel filter core according to claim 1 is characterized in that: described solder mask (5) be aluminium oxide ceramics thin slice or splitting any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104443334A CN102922123A (en) | 2012-11-08 | 2012-11-08 | Method for welding stainless filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104443334A CN102922123A (en) | 2012-11-08 | 2012-11-08 | Method for welding stainless filter element |
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| Publication Number | Publication Date |
|---|---|
| CN102922123A true CN102922123A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104443334A Pending CN102922123A (en) | 2012-11-08 | 2012-11-08 | Method for welding stainless filter element |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302414A (en) * | 2013-05-22 | 2013-09-18 | 西北工业大学 | Vacuum connecting method for stainless steel pieces |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN106312285A (en) * | 2015-06-23 | 2017-01-11 | 宁波江丰电子材料股份有限公司 | Welding method for filter screen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780662A (en) * | 1993-09-14 | 1995-03-28 | Daido Steel Co Ltd | Method and device for joining material |
| CN2780984Y (en) * | 2005-03-07 | 2006-05-17 | 唐山三金石油设备工贸有限公司 | Composite screen of sand-proof screen tube |
| CN101890500A (en) * | 2010-07-14 | 2010-11-24 | 安泰科技股份有限公司 | Method for preparing double-layer sintering metal powder filter element |
| CN102049161A (en) * | 2010-11-27 | 2011-05-11 | 辽宁裕通激光应用技术工程有限公司 | Industrial filter screen with V-shaped wires and laser processing process thereof |
| CN102059340A (en) * | 2010-12-09 | 2011-05-18 | 王东伟 | Method for producing compound filter of multi-layer metal meshes and metal powder |
| JP2011147872A (en) * | 2010-01-21 | 2011-08-04 | Kansai Kanaami Kk | Laminated/sintered filter |
-
2012
- 2012-11-08 CN CN2012104443334A patent/CN102922123A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780662A (en) * | 1993-09-14 | 1995-03-28 | Daido Steel Co Ltd | Method and device for joining material |
| CN2780984Y (en) * | 2005-03-07 | 2006-05-17 | 唐山三金石油设备工贸有限公司 | Composite screen of sand-proof screen tube |
| JP2011147872A (en) * | 2010-01-21 | 2011-08-04 | Kansai Kanaami Kk | Laminated/sintered filter |
| CN101890500A (en) * | 2010-07-14 | 2010-11-24 | 安泰科技股份有限公司 | Method for preparing double-layer sintering metal powder filter element |
| CN102049161A (en) * | 2010-11-27 | 2011-05-11 | 辽宁裕通激光应用技术工程有限公司 | Industrial filter screen with V-shaped wires and laser processing process thereof |
| CN102059340A (en) * | 2010-12-09 | 2011-05-18 | 王东伟 | Method for producing compound filter of multi-layer metal meshes and metal powder |
Non-Patent Citations (2)
| Title |
|---|
| 冯胜利: ""不锈钢复合滤网的真空扩散焊"", 《航空精密制造技术》 * |
| 李京龙 等: ""Ti-6Al-4V钛合金板与304L不锈钢网的扩散焊", 《机械科学与技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302414A (en) * | 2013-05-22 | 2013-09-18 | 西北工业大学 | Vacuum connecting method for stainless steel pieces |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN106312285A (en) * | 2015-06-23 | 2017-01-11 | 宁波江丰电子材料股份有限公司 | Welding method for filter screen |
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Application publication date: 20130213 |