CN103521904B - A kind of method for resistance welding - Google Patents
A kind of method for resistance welding Download PDFInfo
- Publication number
- CN103521904B CN103521904B CN201310470862.6A CN201310470862A CN103521904B CN 103521904 B CN103521904 B CN 103521904B CN 201310470862 A CN201310470862 A CN 201310470862A CN 103521904 B CN103521904 B CN 103521904B
- Authority
- CN
- China
- Prior art keywords
- pipe
- saddle
- shape
- shell
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/0026—Welding of thin articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3009—Pressure electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0277—Rods, electrodes, wires of non-circular cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of method for resistance welding, comprise following processing step: (a) obtains the concentric column thin wall with through hole; B () obtains the pipe with shape of a saddle end; C () obtains first electrode with endoporus and saddle camber; D () obtains second electrode with saddle camber; E () arranges pipe to make its shape of a saddle bottom surface contact with the saddle camber of the second electrode and to fit completely; F () arranges shell and is inserted in pipe to make its through hole; G () arranges the first electrode and is inserted in pipe to make its endoporus; H () applies certain precompression to described first electrode, shell, pipe and the second electrode, then pass to electric current to make shell-and-tube contact area generation weld nugget.A kind of method for resistance welding of the present invention, the form adopting a kind of saddle-shaped surface and Cylinder Surface to fit completely, is combined into component by electric resistance welding, designs ingenious, simple to operate, can avoid the deficiency that the normal welding such as soldering and electric welding mode causes.
Description
Technical field
The present invention relates to enclosed refrigeration compressor field, particularly relate to swirl type cold compressor, compressor case component with have air-breathing, a kind of welding method of welding is carried out in exhaust, all pipe of oil or other purposes.
Background technology
At present, swirl type cold compressor casing component, with have air-breathing, exhaust, all welding manner of the pipe of oil or other purposes have soldering, electric welding, electric resistance welding etc.
Soldering and electric welding, as normal welding mode, have its weak point:
1, need additionally to use the consumptive material such as solder, welding slag preventing agent, production cost is high;
2, stability of the welding quality is poor, and in welding process, easily occur the weld defects such as pore, oxidation, slag inclusion, these defects directly results in the generation of leakage.Particularly brazing mode, although there will not be leakage by quality control method in compressor production process, but when carrying out pipe arrangement weld job in the compressor user hands such as air-conditioning manufacturer, because adopt brazing mode equally, so the original brazing solder fusing of compressor can be made when welding gun flame is long or temperature is too high and then leak;
3, the single work piece production time is long, beat is slow, efficiency is low.
4, whole operating process can produce more smog and dust, and operating environment is poor.
The ready-made case that electric resistance welding mode is applied in enclosed refrigeration compressor field is generally plane and welds with the conical surface with plane-welding or plane.But no matter adopt any form to weld, all first must go out a plane in a certain region of shell, then go out manhole in the plane, shell processing technology is complicated, and therefore processing cost is high.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of method for resistance welding of research and design.The technological means that the present invention adopts is as follows:
A kind of method for resistance welding, comprises following processing step:
A () obtains the concentric column thin wall with through hole;
B () obtains the pipe with shape of a saddle end, shape of a saddle end comprises shape of a saddle bulge loop face and shape of a saddle bottom surface;
C () obtains first electrode with endoporus and saddle camber;
D () obtains second electrode with saddle camber;
E () arranges pipe to make its shape of a saddle bottom surface contact with the saddle camber of the second electrode and to fit completely;
F () arranges shell and is inserted in pipe to make its through hole, make the convex annular face contacts of the shape of a saddle of the inner surface of shell and pipe and fit completely;
G () arranges the first electrode and is inserted in pipe to make its endoporus, make the exterior surface of its saddle camber and shell and fit completely;
H () applies certain precompression to described first electrode, shell, pipe and the second electrode, then pass to electric current to make shell-and-tube contact area generation weld nugget.
It is the concentric pipe with shape of a saddle end as preferred pipe; Pipe is the steel pipe with shape of a saddle end formed by deep stretching process, stamps out the bulge loop part equidistant with shape of a saddle end in shape of a saddle end on pipe draw direction, and the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face; Pipe stretching rightabout then forms the annular groove equidistant with shape of a saddle end, and the curved surface at bottom portion of groove place is shape of a saddle bottom surface.
Center line projection of shape in the plane perpendicular to tubular axis line as the shape of a saddle bulge loop face of preferred pipe is circle, oval, rectangle.
As the shape of a saddle end of preferred pipe by by the plane cutting of tubular axis line, obtaining boss cross sectional shape respectively be semicircle, rectangle, trapezoidal, triangle, arc, and acquisition channel section shape is semicircle, rectangle, trapezoidal, triangle, arc.
A kind of concentric column thin wall by roll bending, welding and turnery processing as preferred shell, or another kind of by carrying out the concentric column thin wall of turnery processing to seamless steel pipe; Through hole is the circular hole processed by the method such as punching or boring in the side of shell.
As the axis of the through hole of preferred shell and the intersect vertical axis of shell.
As preferably in process step (e), the radius of curvature of the shape of a saddle bottom surface of pipe is equal with the radius of curvature of the saddle camber of the second electrode; In step (f), the radius of curvature of the inner surface of shell is equal with the radius of curvature in the shape of a saddle bulge loop face of pipe; In step (g), the radius of curvature of the saddle camber of the first electrode is equal with the radius of curvature of the outer surface of shell.
As the axis co-axial of the axis of the axis of preferred pipe, the through hole of shell, the axis of the first electrode and the second electrode.
As preferably in step (h), weld nugget is annular weld zone.
Material as preferably pipe and shell is the steel of steel, copper plated steel or other material of coating.
Compared with the prior art, a kind of method for resistance welding of the present invention has the following advantages:
1, welding method of the present invention is compared with the normal welding such as electric welding, soldering mode, uses electric resistance welding, does not need the consumptive materials such as solder, saved material cost;
2, welding method of the present invention is compared with the normal welding such as electric welding, soldering mode, use electric resistance welding, nugget formed time all the time surround by plastic area and and air exclusion, not easily produce the weld defects such as pore, slag inclusion, oxidation, greatly reduce the possibility occurring to leak, welding quality stable;
3, welding method of the present invention is compared with the normal welding such as electric welding, soldering mode, and use electric resistance welding, single workpiece is short for weld interval, improves production efficiency;
4, welding method of the present invention is compared with the normal welding such as electric welding, soldering mode, and use electric resistance welding, whole operating process can produce few smog and dust, improves operating environment;
5, compared with welding method of the present invention and plane and plane or plane are welded with the conventional resistive of the conical surface, do not need, at shell upper punch out-of-plane, to simplify shell processing technology, saved processing cost.
A kind of method for resistance welding of the present invention, the form adopting a kind of saddle-shaped surface and Cylinder Surface to fit completely, is combined into component by electric resistance welding, designs ingenious, simple to operate, can avoid the deficiency that the normal welding such as soldering and electric welding mode causes.
Accompanying drawing explanation
Fig. 1 is along the cut-away illustration on shell axis direction at the fore shell positioning welding, pipe, the first and second electrodes;
Fig. 2 is in the fore shell positioning welding, pipe, the cut-away illustration of the first and second electrode vertical on shell axis direction;
Fig. 3 is when welding, and shell, pipe, the first and second electrodes are along the cut-away illustration on shell axis direction;
Fig. 4 is when welding, shell, pipe, the cut-away illustration of the first and second electrode vertical on shell axis direction;
Wherein:
10, shell, 12, through hole;
20, manage, 21, shape of a saddle end, 22, bulge loop face, shape of a saddle end, 23, shape of a saddle bottom surface;
30, the first electrode, the 31, first electrode endoporus, the 32, first electrode saddle camber;
40, the second electrode, the 41, second electrode saddle camber;
50, nugget anchor ring.
Detailed description of the invention
As Figure 1-Figure 4, a kind of method for resistance welding, comprises following processing step:
A () obtains the concentric column thin wall 10 with through hole 12;
B () obtains the pipe 20 with shape of a saddle end 21, shape of a saddle end 21 comprises shape of a saddle bulge loop face 22 and shape of a saddle bottom surface 23;
C () obtains first electrode 30 with endoporus 31 and saddle camber 32;
D () obtains second electrode 40 with saddle camber 41;
E () arranges pipe 20 and contacts to make its shape of a saddle bottom surface 23 with the saddle camber 41 of the second electrode 40 and fit completely;
F () arranges shell 10 and is inserted in pipe 20 to make its through hole 12, make the inner surface of shell 10 contact with the shape of a saddle bulge loop face 22 of pipe 20 and fit completely;
G () arranges the first electrode 30 and is inserted in pipe 20 to make its endoporus 31, make the exterior surface of its saddle camber 32 and shell 10 and fit completely;
H () applies certain precompression to described first electrode 30, shell 10, pipe 20 and the second electrode 40, then pass to electric current to make shell 10 and pipe 20 contact area generation weld nugget 50.
Welded by electric resistance welding, do not need the consumptive materials such as solder, saved material cost.
Described pipe 20 is the concentric pipes with shape of a saddle end 21; Pipe 20 is the steel pipes with shape of a saddle end 21 formed by deep stretching process, stamps out the bulge loop part equidistant with shape of a saddle end 21 in shape of a saddle end 21 on pipe 20 draw direction, and the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face 22; On pipe 20 stretches rightabout, then form the annular groove equidistant with shape of a saddle end 21, the curved surface at bottom portion of groove place is shape of a saddle bottom surface 23.
Center line projection of shape in the plane perpendicular to pipe 20 axis in the shape of a saddle bulge loop face 22 of described pipe 20 is circle, oval, rectangle.
The shape of a saddle end 21 of described pipe 20 is by the plane cutting by pipe 20 axis, and obtaining boss cross sectional shape respectively be semicircle, rectangle, trapezoidal, triangle, arc, and acquisition channel section shape is semicircle, rectangle, trapezoidal, triangle, arc.
Described shell 10 is a kind of concentric column thin walls 10 by roll bending, welding and turnery processing, or another kind of by carrying out the concentric column thin wall 10 of turnery processing to seamless steel pipe; Through hole 12 is the circular holes processed by the method such as punching or boring in the side of shell 10.
The axis of the through hole 12 of described shell 10 and the intersect vertical axis of shell 10, make welding locate more accurate.
In process step (e) described, the radius of curvature of the shape of a saddle bottom surface 23 of pipe 20 is equal with the radius of curvature of the saddle camber 41 of the second electrode 40; In step (f), the radius of curvature of the inner surface of shell 10 is equal with the radius of curvature in the shape of a saddle bulge loop face 22 of pipe 20; In step (g), the radius of curvature of the saddle camber 32 of the first electrode 30 is equal with the radius of curvature of the outer surface of shell 10, welding is located more accurate, saddle-shaped surface and Cylinder Surface is reached and fits completely, advantageously in the welding of electric resistance welding.
The axis co-axial of the axis of the axis of described pipe 20, the through hole 12 of shell 10, the axis of the first electrode 30 and the second electrode 40, makes welding locate more accurate.
In step (h) described, weld nugget 50 is annular weld zone, uses electric resistance welding, nugget formed time all the time surround by plastic area and and air exclusion, not easily produce the weld defects such as pore, slag inclusion, oxidation, greatly reduce the possibility occurring to leak, welding quality stable.
The material of described pipe 20 and shell 10 is the steel of steel, copper plated steel or other material of coating.
A kind of method for resistance welding of the present invention, adopt the form that a kind of saddle-shaped surface and Cylinder Surface are fitted completely, compared with plane and plane or plane are welded with the conventional resistive of the conical surface, do not need at shell upper punch out-of-plane, simplify shell processing technology, save processing cost; Be combined into component by electric resistance welding, design ingenious, simple to operate, the deficiency that the normal welding such as soldering and electric welding mode causes can be avoided; Single workpiece is short for weld interval, improves production efficiency; Whole operating process can produce few smog and dust, improves operating environment.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a method for resistance welding, is characterized in that comprising following processing step:
A () obtains the concentric column thin wall (10) with through hole (12);
B () obtains the pipe (20) with shape of a saddle end (21), shape of a saddle end (21) comprise shape of a saddle bulge loop face (22) and shape of a saddle bottom surface (23);
C () obtains first electrode (30) with endoporus (31) and saddle camber (32);
D () obtains second electrode (40) with saddle camber (41);
E () arranges pipe (20) and contacts to make its shape of a saddle bottom surface (23) with the saddle camber (41) of the second electrode (40) and fit completely;
F () arranges shell (10) and is inserted in pipe (20) to make its through hole (12), make the inner surface of shell (10) contact with the shape of a saddle bulge loop face (22) of pipe (20) and fit completely;
G () arranges the first electrode (30) and is inserted in pipe (20) to make its endoporus (31), make the exterior surface of its saddle camber (32) and shell (10) and fit completely;
H () applies certain precompression to described first electrode (30), shell (10), pipe (20) and the second electrode (40), then pass to electric current to make shell (10) and pipe (20) contact area generation weld nugget (50).
2. a kind of method for resistance welding according to claim 1, is characterized in that: pipe (20) is the concentric pipe with shape of a saddle end (21); Pipe (20) is the steel pipe with shape of a saddle end (21) formed by deep stretching process, on pipe (20) draw direction, stamp out the bulge loop part equidistant with shape of a saddle end (21) in shape of a saddle end (21), the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face (22); Pipe (20) stretching rightabout then forms the annular groove equidistant with shape of a saddle end (21), and the curved surface at bottom portion of groove place is shape of a saddle bottom surface (23).
3. a kind of method for resistance welding according to claim 2, is characterized in that: center line projection of shape in the plane perpendicular to pipe (20) axis in the shape of a saddle bulge loop face (22) of pipe (20) is circle, oval, rectangle.
4. a kind of method for resistance welding according to claim 2, it is characterized in that: the shape of a saddle end (21) of pipe (20) is by the plane cutting by pipe (20) axis, obtaining boss cross sectional shape respectively be semicircle, rectangle, trapezoidal, triangle, arc, and acquisition channel section shape is semicircle, rectangle, trapezoidal, triangle, arc.
5. a kind of method for resistance welding according to claim 1, it is characterized in that: shell (10) is a kind of concentric column thin wall (10) by roll bending, welding and turnery processing, or another kind of by carrying out the concentric column thin wall (10) of turnery processing to seamless steel pipe; Through hole (12) is the circular hole processed by punching or boring method in the side of shell (10).
6. a kind of method for resistance welding according to claim 5, is characterized in that: the axis of the through hole (12) of shell (10) and the intersect vertical axis of shell (10).
7. a kind of method for resistance welding according to claim 1, it is characterized in that: in step (e), the radius of curvature of shape of a saddle bottom surface (23) of pipe (20) is equal with the radius of curvature of the saddle camber (41) of the second electrode (40); In step (f), the radius of curvature of the inner surface of shell (10) is equal with the radius of curvature in the shape of a saddle bulge loop face (22) of pipe (20); In step (g), the radius of curvature of the saddle camber (32) of the first electrode (30) is equal with the radius of curvature of the outer surface of shell (10).
8. a kind of method for resistance welding according to claim 1, is characterized in that: the axis co-axial of the pipe axis of (20), the axis of the through hole (12) of shell (10), the axis of the first electrode (30) and the second electrode (40).
9. a kind of method for resistance welding according to claim 1, is characterized in that: in step (h), and weld nugget (50) is annular weld zone.
10. a kind of method for resistance welding according to claim 1, is characterized in that: the material of pipe (20) and shell (10) is steel or copper plated steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470862.6A CN103521904B (en) | 2013-10-10 | 2013-10-10 | A kind of method for resistance welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470862.6A CN103521904B (en) | 2013-10-10 | 2013-10-10 | A kind of method for resistance welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521904A CN103521904A (en) | 2014-01-22 |
| CN103521904B true CN103521904B (en) | 2015-11-18 |
Family
ID=49924451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310470862.6A Expired - Fee Related CN103521904B (en) | 2013-10-10 | 2013-10-10 | A kind of method for resistance welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103521904B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181002B (en) * | 2016-08-17 | 2018-04-24 | 浙江瑞庆汽车零部件有限公司 | Bypass valve seat automatic welding machine |
| JP6681372B2 (en) * | 2016-10-07 | 2020-04-15 | アプティブ・テクノロジーズ・リミテッド | Resistance soldering apparatus and method of using the same |
| CN109108443A (en) * | 2017-06-22 | 2019-01-01 | 鹤山联塑实业发展有限公司 | A kind of fire extinguisher nozzle and upper seal head structure and its welder and its welding method |
| CN107214483B (en) * | 2017-07-25 | 2023-04-14 | 临海市澳法管业有限公司 | Saddle surface penetration welding water pipe manufacturing method and special equipment thereof |
| JP7209894B2 (en) * | 2020-02-28 | 2023-01-20 | 三菱電機株式会社 | Method for manufacturing hermetic compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022913A (en) * | 2004-07-23 | 2007-08-22 | 德尔菲技术公司 | Resistance welding method |
| CN202344116U (en) * | 2011-09-30 | 2012-07-25 | 长城汽车股份有限公司 | Connecting structure for metal fuel tank line opening of automobile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188584A (en) * | 1982-04-30 | 1983-11-04 | Toyota Motor Corp | Joining method of metallic pipe and metallic plate |
| JP3573928B2 (en) * | 1997-08-29 | 2004-10-06 | 三洋電機株式会社 | Compressor |
| US6717091B2 (en) * | 2002-08-22 | 2004-04-06 | Delphi Technologies, Inc. | Method for metallurgically attaching together two tubes |
| US20040056001A1 (en) * | 2002-09-24 | 2004-03-25 | Delphi Technologies Inc. | Deformation resistance welding of sheet metal, tubes, and similar shapes |
| WO2010048393A2 (en) * | 2008-10-22 | 2010-04-29 | Delphi Technologies, Inc. | Method for manufacturing a tubular frame structure |
-
2013
- 2013-10-10 CN CN201310470862.6A patent/CN103521904B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022913A (en) * | 2004-07-23 | 2007-08-22 | 德尔菲技术公司 | Resistance welding method |
| CN202344116U (en) * | 2011-09-30 | 2012-07-25 | 长城汽车股份有限公司 | Connecting structure for metal fuel tank line opening of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103521904A (en) | 2014-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103521904B (en) | A kind of method for resistance welding | |
| JP6089377B2 (en) | New type of composite pipe of copper pipe and steel pipe, its manufacturing method, application and welded structure | |
| CN103737220A (en) | Internal supporting device for friction stir welding of closed barrel with reserved openings at centers of two ends | |
| CN105014293B (en) | Welding lap joint structure and method for thin-wall pipes | |
| CN202813927U (en) | Air condition compressor liquid storage device | |
| CN103753011A (en) | Fixture utilizing electron-beam welding machine to weld ultrathin-walled tubes and welding process thereof | |
| CN203725998U (en) | Welding assembly and valve body | |
| CN204867779U (en) | Spot welding electrode structure | |
| CN104439732A (en) | Novel welding structure and welding method | |
| CN201955012U (en) | Pipe flat-head welding joint between pipe and pipe sheet | |
| CN108705266B (en) | Machining process of press-fit type wheel structure | |
| CN103737159B (en) | Thermocouple penetration piece complete processing | |
| CN203711669U (en) | Pipe expander and flaring sleeve thereof | |
| CN202479711U (en) | Precision welding structure for ultrathin vacuum corrugated pipe | |
| CN108673067A (en) | A kind of production method of bearing of compressor | |
| CN201953616U (en) | Shell structure of compressor | |
| CN204321422U (en) | Novel welding structure body | |
| CN201310696Y (en) | Jacket flange | |
| CN107962268B (en) | A kind of assembly method before light wall pipe part soldering | |
| JP2007301577A (en) | Cylindrical product | |
| CN201599502U (en) | Welding structure of evaporator aluminum pipe joint | |
| CN205855993U (en) | Resonator housing on oxygenerator | |
| CN205243791U (en) | Exhaust pipe of compressor | |
| CN205101711U (en) | Nonrust steel pipe connection structure of thin wall | |
| CN202926491U (en) | EGR (exhaust gas recirculation) cooler with flanging structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Applicant after: Panasonic's compressor (Dalian) Co., Ltd Address before: 116000, No. 8 Pine Street, Jinzhou New District, Liaoning, Dalian Applicant before: Dalian Sanyo Compressor Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN SANYO COMPRESSOR CO., LTD. TO: PANASONIC APPLIANCES COMPRESSOR (DALIAN) CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20201010 |