CN106816794A - Method and electrical connecting element for forming electrical connection - Google Patents
Method and electrical connecting element for forming electrical connection Download PDFInfo
- Publication number
- CN106816794A CN106816794A CN201611078793.4A CN201611078793A CN106816794A CN 106816794 A CN106816794 A CN 106816794A CN 201611078793 A CN201611078793 A CN 201611078793A CN 106816794 A CN106816794 A CN 106816794A
- Authority
- CN
- China
- Prior art keywords
- terminal
- connecting material
- antenna
- sensing heating
- connection
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 10
- 230000004907 flux Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The present invention relates to a kind of method for forming electrical connection, wherein being heated to connecting material.The present invention also designs a kind of electrical connecting element, and forming at least one according to the method in the electrical connecting element electrically connects.
Description
Technical field
The present invention relates to a kind of for forming the method and a kind of electrical connecting element that electrically connect, in the electrical connecting element extremely
A few electrical connection is formed by means of this method.
Background technology
So far, electrical connection is usually directed to conventional socket connection in no longer accessible region or also not closed
Engagement connection, soldering connection, melting welding connection or bonding connection in state.Typically in ensuing list in the modification of the latter
Link position is protected by closing process in only step, such as by casting.
By connection known in the art disadvantageously, load capacity is low and connection procedure and later protection connection position
Put the flow for causing complexity.
The content of the invention
Therefore it is an object of the present invention to provide a kind of method for forming electrical connection, the method is with existing in prior art
Compared to by improving.The purpose of the present invention is also resided in addition, there is provided a kind of electrical connecting element, is formed with the electrical connecting element
By means of the electrical connection that this method is formed.
This is according to the present invention by method according to claim 1 and electrical connection element according to claim 15
Part is realized.The scheme of being advantageously improved can be obtained for example from corresponding dependent claims.
The present invention relates to a kind of method for forming electrical connection between the first terminal and Second terminal, wherein the method
Have steps of：
- connecting material is applied at least one of described terminal,
- be displaced to together terminal, so that connecting material is located between terminal and is adjacent to two terminals, and
- heating connecting material.
By means of the method according to the invention can produce in a straightforward manner it is reliable and overcome such as effect of vibration or
The connection of the stabilization of corrosiveness.Can melt especially connecting material herein, make connecting material be connected with terminal in other words with
Terminal is fused.
Terminal can especially be made of an electrically conducting material herein, such as copper or aluminium.
The first terminal and/or Second terminal especially can be respectively herein the plug contacts and/or flat tongue stretched out
(Flachzunge).The contact for being for example only applied to stretch out is possible, because producing contacting by connecting material.
Connecting material heating is welded advantageous by sensing heating and is realized.It has been shown that the stability of this mode is high.
According to a preferred embodiment, can be welded by sensing heating and terminal is heated, so as to thus make connection material
Material is heated indirectly.This proves favourable.
Sensing heating welding can especially solder brazing, solder or bonding.
According to a preferred embodiment, antenna is used for induction type and heats welding, the antenna is at least partially around it
The middle region for applying connecting material.This realizes and introduces energy to be heated in the accurate mode of specific, target.
Antenna especially can be designed as the flat plane antenna of bilateral or the flat plane antenna of one side.
According to another embodiment, connecting material is heated by means of laser beam.This can also be with sensing heating welding group
Close.
According to a preferred embodiment, connecting material is introduced in groove or the weldering of at least one of terminal when applying
In agent storage unit (Lotdepot).By connecting material plating, roll-in and/or can especially be stamped in above.
Connecting material can advantageously flux material or adhesives.This is particularly advantageous in conduction.
According to an improvement project, the first terminal and/or Second terminal have corresponding auxiliary sliding part, especially with inclined-plane
Form.This enables terminal to be reliably displaced to together by simpler.
The method can be implemented simultaneously for multiple the first terminals and Second terminal, wherein for each the first terminal distributes phase
Second terminal answer, to be connected.This permission is applied no time lost in the plug with multiple contacts.
The first terminal and/or Second terminal can be shorted during this method is carried out, particular by a fixed number
The contact pilotage of the compression of amount.This realizes electric protection during this method is implemented.
This contact pilotage can be used for controlling connecting portion.Therefore can be during manufacture connection be input into by heat at end
Apply the curtage for limiting on son, and loop (geschleift) is formed by electronic equipment.During connection is produced, just
Change in the contact resistance of the connecting portion for being formed.The time course of resistance variations is related to the energy for introducing, and can sentence
Fixed, whether the connection is normal.
But can also for example be realized checking by means of x-ray instrument.
In addition the invention further relates to a kind of electrical connecting element, in the electrical connecting element at least one electrical connection be by means of
What the method according to the invention was formed.Thus, the advantage having been described above can also be advantageously used in connecting element.With regard to methods described
For, it is also possible to reference to all above-mentioned embodiments and modification.
In a word as described above, the present invention realize in load conditions, for example vibration or temperature change in the case of use
Socket connection, wherein the join domain between two connection ends may be damaged by fretting corrosion.The socket connection
It is typically positioned in housing, the housing was just ready (plugboard/plug) before connection is produced.In order to realize data transfer
Or signal transmission or offer chip, connection end and mating member are displaced to together to form socket connection.This connection can lead to
Cross sensing heating welding process and be protected from possible overload and fretting corrosion damage.
The method according to the invention can especially in the case where needing quality requirement higher or needing high load capability
Use.It is not usually required to the subsequent step for connection to be sealed or protected.
Brief description of the drawings
Accompanying drawing referring to description embodiment illustrates other features and advantages of the present invention to those skilled in the art.
It is shown in which：
Fig. 1 a, 1b show the construction of the socket connection by means of flat tongue,
Fig. 2 a-2d show the sub- modification of difference for applying connecting material,
Fig. 3 a, 3b show the principle construction of the sensing heating welder with circular antenna,
Fig. 4 a, 4b show the principle construction of the sensing heating welder of the flat plane antenna with both sides,
Fig. 5 a, 5b show the principle construction of the sensing heating welder of the flat plane antenna with side.
Specific embodiment
Fig. 1 a and Fig. 1 b show the socket connection 1 with the first terminal 10 and Second terminal 20.Fig. 1 a show side-looking herein
Figure, and Fig. 1 b show top view.The socket connection herein is embodied as the structure of flat ligule flat tongue in other words.In order to more simply fill
With or in order to engage, terminal 10,20 is provided with the corresponding inclined section as auxiliary sliding part 12,22.
For example, be the connection terminal for integrated circuit (IC) in this first terminal 10, and Second terminal 20 is plug end
Son.
Connecting material 30 is located between two terminals 10,20.The connecting material is directly abutted with two terminals 10,20.
Connecting material is designed as this, fused when heated and be connected with terminal 10,20.The company of material fusion can be especially formed herein
Connect.
Socket connection 1 is surrounded by housing 40.The housing is used to protect socket connection 1.
Fig. 2 a and Fig. 2 b show the first possible scheme for applying connecting material 30 in Second terminal 20, wherein Fig. 2 a
Side view is shown, and Fig. 2 b show top view.It is applied on the flat surface of Second terminal 20 in this connecting material 30 and corresponding
Ground is prominent.The allocated connecting material 30, roll-in or plating can for example be made.
Fig. 2 c and Fig. 2 d show the second possible scheme for applying connecting material 30 in Second terminal 20, wherein Fig. 2 c
Side view is shown, and Fig. 2 d show top view.In this connecting material 30 is introduced into the breach of Second terminal 20 or groove 24, should
Breach or groove are used as solder flux storage unit.Therefore connecting material 30 can partly decline, and this can cause that working process becomes
Easily.
Fig. 3 a and Fig. 3 b show the connecting portion 1 during the sensing heating welding process according to the first form of implementation, its
Middle Fig. 3 a show side view, and Fig. 3 b show top view.Antenna 50 that is circular, especially closing, the antenna bag are used herein
Enclose connecting portion 1 and housing 40.The circular antenna 50 is powered by ultrasonic-frequency rotory generator/high-frequency electric machines 55 herein.Antenna 50 and height
Frequency generator 55 is collectively forming induction system sensing heating welder in other words herein.
Herein preferably, the sensed system in face for keeping flat is heated in planar fashion.According to the class of selected interconnection technique
Type selects the degree of energy input.For example, suitably applying solder technology, brazing technique or adhesive technology.In requisition for
Flux material or adhesives are preferably applied in before as connecting material 30.In order to be applied in period of assembly protection
Connecting material 30 can by connecting material introduce groove or solder flux storage unit, this especially above in conjunction with accompanying drawing 2a to 2d
Description.On connecting material can also be plated or imprint.
The antenna 50 of sensing heating welding system sensing heating welder in other words is for example with plane or circle side
Formula surrounds connecting portion 1.The connecting portion 1 is located at the center of the electromagnetic field for producing.By eddy current losses, this region is selected
Heat to selecting property.
In conventional embodiment, the electromagnetic field of induction coil is heated to scolding tin, and makes melts soldering tin.This results in this
The title of technology.In the embodiment being described herein as, by electromagnetic field, to contact tongue, terminal 10,20 is heated in other words, and
Be not make connection raw material in other words connecting material 30 be heated.Caused terminal 10,20 temperature make to be located between terminal 10,20
Contact material connecting material 30 --- such as soft solder, hard solder paper tinsel or bonding agent --- melts or causes chemical anti-in other words
Should.
Fig. 4 a and Fig. 4 b show the connecting portion 1 during the sensing heating welding process according to the second form of implementation, its
Middle Fig. 4 a show side view, and Fig. 4 b show top view.From unlike the first form of implementation, bilateral is designed as in this antenna 50
Flat plane antenna.The electric field 60 produced by the flat plane antenna equally schematically shows.
Fig. 5 a and Fig. 5 b show the connecting portion 1 during according to the sensing heating welding process of the 3rd form of implementation, its
Middle Fig. 5 a show side view, and Fig. 5 b show top view.From unlike the first form of implementation and the second form of implementation, in this day
Line 50 is designed as the flat plane antenna of one side.The electric field 60 produced by the flat plane antenna equally schematically shows.
In a possible embodiment, terminal 10,20 is short by the contact pilotage for compressing in plug side during connection procedure
Road.Can contact pilotage checks connecting portion in other words using the contact pin of outside after connection procedure is implemented.
In another embodiment, the inspection is realized by the x-ray instrument being integrated in production line.Therefore can be in sensing
Amount and the position of connecting material are checked before heating welding, and join domain is checked in itself after connection is produced.
In another possible embodiment, it is also possible to instead of by sensing heating welder produce energy, but by
Laser beam supplying energy.In both cases, typically all it is heated to reaction temperature.
It is above-mentioned to be implemented with described order according to the step of the inventive method.But can also be real in another order
Apply.In for example having the embodiment of specific step combination one, the method according to the invention can be walked with not implementing other
Rapid mode is performed.But the step of can also implement other in principle and do not mention.
Claims hereof shows to be not precluded from further protection measure.
If a feature or one group of feature are not strictly necessary in the flow of this method, applicant makes this feature
Or this group of feature is not included at least one independent claims.For example it can be the power for example submitted in the applying date herein
Sub-portfolio form or the sub-portfolio form limited by other features of the claim submitted in the applying date that profit is required.This
Planting the new claim for being formed or combinations of features should be considered as being covered by the scope of the disclosure of the present application.
In addition it is further noted that this hair described in different embodiments or embodiment and/or being shown in the drawings
Bright design, feature and modification can arbitrarily combinations with one another.Single or multiple features arbitrarily this can be exchanged each other.
Resulting combinations of features can also be considered as being covered by the scope of the disclosure of the present application.
The reference of dependent claims is not construed as abandoning other the independent spies to the dependent claims being cited
The protection levied.These features can also arbitrarily with other combinations of features.
Only in the description disclosed feature or in specification or claim only in the form of with other combinations of features
Disclosed feature can be in principle in itself important independently for the present invention.Therefore these features can individually be incorporated to power
Profit require in distinguishing over prior art.
Claims (15)
1. a kind of for forming the method for electrically connecting (1), wherein the method between the first terminal (10) and Second terminal (20)
Have steps of：
- connecting material (30) is applied at least one of described terminal (10,20),
- be displaced to together terminal (10,20), so that connecting material (30) is between terminal (10,20) and is adjacent to two
Individual terminal (10,20), and
- connecting material (30) is heated.
2. method according to claim 1, it is characterised in that the first terminal (10,20) and/or Second terminal (10,20)
It is the plug contacts and/or flat tongue stretched out.
3. method according to any one of the preceding claims, it is characterised in that by way of sensing heating is welded pair
Connecting material (30) is heated.
4. method according to claim 3, it is characterised in that to terminal (10,20) by way of sensing heating is welded
Heating, and connecting material (30) is heated indirectly thus.
5. according to one of claim 3 or 4 described method, it is characterised in that sensing heating welding be solder brazing, solder or
Bonding.
6. the method according to any one of claim 3 to 5, it is characterised in that for sensing heating welding uses antenna
(50), the antenna is at least partially around the region for being wherein applied with connecting material (30).
7. method according to claim 6, it is characterised in that antenna (50) is designed as the flat plane antenna of bilateral.
8. method according to claim 6, it is characterised in that antenna (50) is designed as the flat plane antenna of one side.
9. according to one of claim 1 or 2 described method, it is characterised in that connecting material (30) is added by means of laser beam
Heat.
10. method according to any one of the preceding claims, it is characterised in that connecting material (30) is put when applying
Enter, electroplate, roll-in and/or being impressed into the groove (24) of at least one of terminal (10,20) or solder flux storage unit.
11. methods according to any one of the preceding claims, it is characterised in that connecting material (30) be flux material or
Adhesives.
12. methods according to any one of the preceding claims, it is characterised in that the first terminal (10) and/or the second end
Sub (20) are the forms of incline structure with corresponding auxiliary sliding part (12,22), especially the auxiliary sliding part.
13. methods according to any one of the preceding claims, it is characterised in that for multiple the first terminals (10) and
Two-terminal (20) while implement the method, wherein being that each the first terminal (10) distributes Second terminal corresponding, to be connected
(20)。
14. methods according to claim 13, it is characterised in that the first terminal (10) and/or Second terminal (20) are at this
It is shorted during method, particular by the contact pilotage of a number of compression.
A kind of 15. electrical connecting elements, at least one electrical connection (1) is wanted by means of according to foregoing right in the electrical connecting element
What the method any one of asking was formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015223778.8A DE102015223778A1 (en) | 2015-11-30 | 2015-11-30 | Method for forming an electrical connection and electrical connection element |
| DE102015223778.8 | 2015-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106816794A true CN106816794A (en) | 2017-06-09 |
| CN106816794B CN106816794B (en) | 2021-04-27 |
Family
ID=58692859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078793.4A Active CN106816794B (en) | 2015-11-30 | 2016-11-30 | Method for producing an electrical connection and electrical connection element |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106816794B (en) |
| DE (1) | DE102015223778A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732163A (en) * | 2019-03-18 | 2019-05-10 | 广州煌牌自动设备有限公司 | A kind of welding technique and welding equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019101375B4 (en) | 2018-07-31 | 2022-09-29 | Textilforschungsinstitut Thüringen-Vogtland e.V. | Process for the formation of a flat electrical contact and mechanical connection and textile article of clothing |
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| CN1122061A (en) * | 1994-06-27 | 1996-05-08 | 精工爱普生株式会社 | Method for connecting lead wires and connecting terminal for lead wires |
| EP1240968A1 (en) * | 2001-02-16 | 2002-09-18 | Hirschmann Austria GmbH | Method for forming electrical connection by induction soldering |
| DE10241662B4 (en) * | 2002-09-05 | 2005-02-10 | Volkswagen Bordnetze Gmbh | Method and device for monitoring the process of soldering inductively heated conductors |
| CN201243087Y (en) * | 2008-07-10 | 2009-05-20 | 重庆市伟岸测器制造有限公司 | Down-lead sealing end |
| JP2011124178A (en) * | 2009-12-14 | 2011-06-23 | Autonetworks Technologies Ltd | Electric wire with terminal fitting, and its manufacturing method |
| CN102664335A (en) * | 2012-05-07 | 2012-09-12 | 石家庄供电公司 | Auxiliary welding device for 2Mbit/s patch cord joint |
| WO2013107749A1 (en) * | 2012-01-20 | 2013-07-25 | Saint-Gobain Glass France | Connection element |
| CN104600534A (en) * | 2013-11-03 | 2015-05-06 | 张向增 | High frequency induction welding connecting method for compound configuration high-frequency data wire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10143907A1 (en) * | 2001-02-16 | 2002-09-19 | Hirschmann Austria Gmbh Rankwe | Electrical connection using induction soldering |
| DE102015003086A1 (en) * | 2014-09-12 | 2016-03-17 | Few Fahrzeugelektrikwerk Gmbh & Co. Kg | Process for shortening the process time during soldering of electrical or electronic components by means of electromagnetic induction heating |
-
2015
- 2015-11-30 DE DE102015223778.8A patent/DE102015223778A1/en active Pending
-
2016
- 2016-11-30 CN CN201611078793.4A patent/CN106816794B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122061A (en) * | 1994-06-27 | 1996-05-08 | 精工爱普生株式会社 | Method for connecting lead wires and connecting terminal for lead wires |
| EP1240968A1 (en) * | 2001-02-16 | 2002-09-18 | Hirschmann Austria GmbH | Method for forming electrical connection by induction soldering |
| DE10241662B4 (en) * | 2002-09-05 | 2005-02-10 | Volkswagen Bordnetze Gmbh | Method and device for monitoring the process of soldering inductively heated conductors |
| CN201243087Y (en) * | 2008-07-10 | 2009-05-20 | 重庆市伟岸测器制造有限公司 | Down-lead sealing end |
| JP2011124178A (en) * | 2009-12-14 | 2011-06-23 | Autonetworks Technologies Ltd | Electric wire with terminal fitting, and its manufacturing method |
| WO2013107749A1 (en) * | 2012-01-20 | 2013-07-25 | Saint-Gobain Glass France | Connection element |
| CN102664335A (en) * | 2012-05-07 | 2012-09-12 | 石家庄供电公司 | Auxiliary welding device for 2Mbit/s patch cord joint |
| CN104600534A (en) * | 2013-11-03 | 2015-05-06 | 张向增 | High frequency induction welding connecting method for compound configuration high-frequency data wire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732163A (en) * | 2019-03-18 | 2019-05-10 | 广州煌牌自动设备有限公司 | A kind of welding technique and welding equipment |
| CN109732163B (en) * | 2019-03-18 | 2021-05-11 | 广州煌牌自动设备有限公司 | Welding process and welding equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015223778A1 (en) | 2017-06-01 |
| CN106816794B (en) | 2021-04-27 |
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