CN105014211A - Argon flow gas supply method and device for packaging welding of core membrane - Google Patents
Argon flow gas supply method and device for packaging welding of core membrane Download PDFInfo
- Publication number
- CN105014211A CN105014211A CN201510413913.0A CN201510413913A CN105014211A CN 105014211 A CN105014211 A CN 105014211A CN 201510413913 A CN201510413913 A CN 201510413913A CN 105014211 A CN105014211 A CN 105014211A
- Authority
- CN
- China
- Prior art keywords
- argon gas
- gas stream
- ring
- core body
- weld
- 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.)
- Withdrawn
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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
- B23K9/326—Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an argon flow gas supply method and device for packaging welding of a core membrane. The argon flow gas supply method for packaging welding of the core membrane includes the steps that first argon flow facing a core and a welding ring weld joint is provided, so that anti-oxidation protection is carried out on the currently-formed weld joint; and meanwhile, second argon flow is provided from the side face of the membrane so that an argon environment can be formed in a cavity formed by the membrane and a welding ring, and anti-oxidation protection is carried out on the formed weld joint. The argon flow gas supply device mainly comprises a front top, a rear top and an argon flow channel unit. The argon flow channel unit is connected to a lathe tail frame. An argon source is communicated with a welding gun and the argon flow channel unit through an argon tube in the welding process, so that anti-oxidation protection of the inside and the outside in the welding position is achieved at the same time. The device enables argon flow to flow towards a welded workpiece from the side face of a welding gap, thereby being simple and practical.
Description
Technical field
The present invention relates to welded encapsulation technique, be specifically related to a kind of argon gas stream air supply method and device of core body diaphragm welded encapsulation.
Background technology
At present, known non-melting electrode argon arc welding picks and to be made up of welding machine, welding gun, power-supply system, air supply system, control system, cooling system.When welding work pieces, switch on power and first open argon gas lock, then weld, wherein argon gas sprays to welding position as Fig. 1 from welding gun direction.But; this argon gas stream plenum system is when welding the small-sized core body diaphragm of encapsulation; can only ensure that the outside of soldered part is subject to argon shield; can not ensure that the inner side of soldered part is subject to argon shield; and after just soldered part moves apart welding gun; no longer include argon gas stream to shroud, Yu Wenhui makes its oxidation by air.
Summary of the invention
In order to solve the problem; the object of the present invention is to provide a kind of argon gas stream air supply method of core body diaphragm welded encapsulation; by changing argon gas stream supply mode; argon shield is used to soldered partial interior and outside simultaneously, ensures that soldered part is still under the protection of argon gas stream after moving apart welding gun simultaneously.
Another object of the present invention is to the argon gas stream feeder that a kind of core body diaphragm welded encapsulation is provided, for core body diaphragm welded encapsulation.
Above-mentioned purpose is achieved by the following technical solution:
The argon gas stream air supply method of core body diaphragm welded encapsulation, comprises the first argon gas stream provided facing to described core body and weld-ring weld seam, to carry out protection against oxidation to the weld seam of current formation; The second argon gas stream simultaneously provided from described diaphragm side, to form ar gas environment in the cavity formed at described diaphragm and weld-ring, carries out protection against oxidation to established weld seam.Argon gas stream provides argon shield from commissure and weld seam side both direction, realizes the outside of weld and inner protection against oxidation simultaneously.After welding end welding gun is removed, the argon gas stream of weld seam side surface direction can continue as welding assembly inside provides ar gas environment, and meanwhile, part argon gas penetrates into welding assembly outside from the gap of weld-ring and the first shaft shoulder junction, prevents welding assembly outside to be oxidized.
Further, the direction of described second argon gas stream is vertical with the direction of the first argon gas stream.Second argon gas stream blows to welding assembly from weld seam side, vertical with the first argon gas stream blowing to weld seam in welding gun.
Further, the flow of first, second argon gas stream is 7.5 ~ 10L/min altogether.Flow can not provide sufficiently high argon concentration lower than 7.5 L/min, and flow flows through by force higher than the gas produced during 10L/min, affects the welded encapsulation process of small-sized core body diaphragm.
The argon gas stream feeder of core body diaphragm welded encapsulation, comprises lathe, welding gun, sinciput, Hou Ding, argon gas stream channel unit, concentric ring, argon gas source and tunger tube; Described sinciput one end is provided with the groove for setting-in core body, and is held in the scroll chuck of lathe; Argon gas stream channel unit one end is provided with location sunny side and is connected on lathe tailstock; The one end on rear top is provided with the location back suitable with described location sunny side and center is provided with gas port, and rear top carries out axial location by the location back on the location sunny side of argon gas stream channel unit one end; Concentric ring to be set on rear top and to be formed with rear top corresponding end and holds diaphragm and the cavity for the weld-ring that encapsulates diaphragm; Described welding gun is placed in the position while welding place facing to core body and weld-ring, and argon gas source is communicated with welding gun and argon gas stream channel unit by tunger tube, and the cavity that argon gas stream channel unit is formed by the gas port of Hou Ding center and diaphragm and weld-ring is mutually through.Sinciput can rotate along with scroll chuck.
Further, described rear top is provided with the face of cylinder that the diameter that coordinates with weld-ring, concentric ring increases successively vertically successively, is axially forming first shaft shoulder and second shaft shoulder that are used for weld-ring and concentric ring axial location successively; Described rear top is also provided with argon return passage, and the cavity that argon return passage end and diaphragm and weld-ring are formed is through, and the other end communicates with air.First shaft shoulder is for being set with weld-ring, and second shaft shoulder is for being set with concentric ring.
Further, described argon gas stream channel unit comprises connector and rotor, and rotor is located in connector rotationally; Connector is provided with the first gas port be communicated with tunger tube, rotor is circumferentially being provided with guide ring with the first gas port corresponding position, guide ring place is at least provided with 1 the second wireway and is communicated with the 3rd wireway of rotor center by guide ring, and the first wireway, guide ring, the second wireway and the 3rd wireway are communicated with formation argon gas stream passage; Described argon gas stream channel unit is connected on the tailstock of described lathe, along with the push rod on tailstock moves axially.When argon gas stream channel unit proceeds to a certain degree, to the rear top of weld-ring and diaphragm be installed and the sinciput dieback of core body is installed, scroll chuck, sinciput, core body, diaphragm, weld-ring, Hou Ding, rotor just can synchronous axial system, and welding gun can be welded along the surrounding of core body with weld-ring junction.
Further, described rotor front end is conical, forms location sunny side.
Further, the end of described Hou Ding center gas port is tapered opening, forms the location back.Be arranged to tapered opening be convenient to be connected with the location sunny side of rotor, and improve the sealing effectiveness of joint.
Further, it is identical with the second shaft shoulder diameter after first shaft shoulder on described rear top is set with weld-ring.Identical with the second shaft shoulder diameter after first shaft shoulder suit weld-ring, so just by concentric ring, weld-ring can be limited, make weld-ring and rear top concentric.Because the diameter of diaphragm is equal with weld-ring external diameter, also equal with core body point diameter, so core body, diaphragm, weld-ring and rear top concentric can be realized by concentric ring.
Further, the degree of depth of sinciput groove is less than the thickness of core body, and in a groove between be provided with for core body pin insert inside groove.For the ease of welding, core body can not complete embedding fits into groove.Some core bodys have pin, arrange the setting-in that inside groove is convenient to this kind of core body.
Beneficial effect of the present invention:
(1) argon gas stream air supply method provided by the invention, by changing argon gas stream supply mode, provides argon shield from welding gap and welding side, gap both direction, can from the outside of weld and inner protection against oxidation simultaneously.
(2) after welding end welding gun is removed, the argon gas stream of weld seam side surface direction can continue as welding assembly inside provides ar gas environment, meanwhile, part argon gas penetrates into welding assembly outside from the gap of weld-ring and shaft shoulder junction, rear top first, and welding assembly outside can be prevented to be oxidized.
(3) argon gas stream air supply method provided by the invention and device avoid possibility oxidized when workpiece welds, and decrease oxidation and produce unsuitable phenomenons such as splashing, can improve the welding quality of core body and weld-ring, raising diaphragm packaging effect.
Accompanying drawing explanation
Fig. 1: argon gas stream protection schematic diagram in traditional welding method;
Fig. 2: argon gas stream feeder partial structurtes schematic diagram provided by the invention;
Fig. 3: argon gas stream feeder overall structure schematic diagram provided by the invention;
Fig. 4: sinciput structural representation;
Fig. 5: weld front core body, diaphragm, weld-ring, concentric ring and rear top location diagram;
Fig. 6: core body, diaphragm, weld-ring, concentric ring and rear top location diagram during welding;
Fig. 7: argon gas stream channel unit is at the schematic cross-section of guide ring position;
Fig. 8: the enlarged drawing of weld-ring and shaft shoulder junction, rear top first.
In figure: 1, tungsten pin; 2, ignition tip; 3, nozzle; 4, tunger tube; 5, argon gas stream; 6, electric arc; 7, welding wire; 8, workpiece; 9, the first argon gas stream; 10, the second argon gas stream; 11, core body; 12, weld-ring; 13, diaphragm; 14, core body pin; 15, sinciput; 16, Hou Ding; 17, argon gas stream channel unit; 18, sinciput groove; 19, sinciput inside groove; 20, concentric ring; 21, first shaft shoulder; 22, second shaft shoulder; 23, wireway; 24, tapered opening; 25, connector; 26, rotor; 27, the first wireway; 28, guide ring; 29:, the second wireway; 30, the 3rd wireway; 31, welding gun; 32, swinging handle; 33, lathe; 34 argon gas sources; 35, core body front end; 36, scroll chuck; 37, the cavity that formed of weld-ring and diaphragm; 38, tailstock; 39, push rod; 40, argon return passage.
Detailed description of the invention
Technical scheme of the present invention is described in detail below in conjunction with specific embodiment.
As shown in Figure 2 and Figure 6; the argon gas stream air supply method of core body diaphragm welded encapsulation provided by the invention; comprise and provide facing to first argon gas stream 9 of described core body 11 with weld-ring 12 weld; to carry out protection against oxidation to the weld seam of current formation; the second argon gas stream 10 simultaneously provided from described diaphragm 13 side; to form ar gas environment in the cavity 37 formed at described diaphragm 13 and weld-ring 12, protection against oxidation is carried out to established weld seam.First argon gas stream 9 is vertical with the second argon gas stream 10 direction.Argon gas stream provides argon shield from commissure and film 13 side both direction, realizes the outside of weld and inner protection against oxidation simultaneously.After welding end welding gun is removed, second argon gas stream 10 of diaphragm 13 side surface direction can continue as welding assembly inside provides ar gas environment, simultaneously, part argon gas penetrates into welding assembly outside from weld-ring 12 and the gap (as shown in Figure 8) of the shaft shoulder 21 junction, rear top first, prevents welding assembly outside to be oxidized.Unnecessary argon gas discharged to air, prevents weld internal pressure excessive from argon return passage 40.The total flow of first, second argon gas stream is comparatively suitable at 7.5 ~ 10L/min, and flow can not provide sufficiently high argon concentration lower than during 7.5 L/min, and flow flows through by force higher than the gas produced during 10L/min, can affect the welded encapsulation process of small-sized core body diaphragm.
Device shown in Fig. 2 and Fig. 3 can realize above-mentioned argon gas stream air supply method.The argon gas stream feeder of this core body diaphragm welded encapsulation comprises lathe 33, welding gun, sinciput 15, rear top 16, argon gas stream channel unit 17, argon gas source 34 and tunger tube 4.Sinciput 15 one end is clamped by scroll chuck 36, and scroll chuck 36 is rotatably connected on lathe 33, and sinciput 15 can rotate along with scroll chuck 36, and sinciput 15 other end is provided with the groove 18 for setting-in core body 11.Because the core body had has pin 14, the inside groove 19 inserted for core body pin 14 therefore can be provided with in the middle of groove 18, as shown in Figure 4.Rear top 16 is provided with the face of cylinder that the diameter that coordinates with weld-ring 12, concentric rings 0 increases successively vertically successively, is axially forming first shaft shoulder 21 and second shaft shoulder 22 being used for weld-ring 12 and concentric rings 0 axial location successively.Concentric rings 0 and second shaft shoulder 22 are slidably connected, and center, rear top 16 is provided with gas port 23, and the end of gas port is tapered opening 24.Argon gas stream channel unit 17 is connected on lathe 33 tailstock 38, along with the push rod 39 on tailstock 38 moves axially.
Fig. 2 and a kind of concrete structure that Figure 7 shows that argon gas stream channel unit 17, comprise connector 25 and rotor 26, rotor 26 is located in connector 25 rotationally, and the two only can along the circumferential direction rotate mutually.Connector 26 is provided with the first gas port 27 be communicated with tunger tube, rotor 25 is circumferentially being provided with guide ring 28 with the first gas port 27 corresponding position, and guide ring 28 place is provided with 3 the second wireways 29 and is communicated with the 3rd wireway 30 of rotor 26 center by guide ring 28.First wireway 27, guide ring 28, second wireway 29 are communicated with formation argon gas stream passage with the 3rd wireway 30.Rotor 26 front end is conical, can agree with, improve the obturation effect of the second argon gas stream path 10 with rear top wireway 23 end cone opening 24.
Figure 5 shows that the exploded view of core body 11, diaphragm 13, weld-ring 12 and rear top 16 position relationship.Rear top 16 can freely be taken off, and is not connected on lathe 33.When installing core body 11, diaphragm 13 and weld-ring 12, first taken off on rear top 16, the concentric rings 0 on rear top 16 upward, moves to the first shaft shoulder 21 direction, forms a groove with first shaft shoulder 21 by gas port 23.Successively weld-ring 12 and diaphragm 13 are put into the groove that concentric rings 0 and first shaft shoulder 21 are formed.Because first shaft shoulder 21 is identical with the second shaft shoulder 22 diameter after being set with weld-ring 12, so just can make weld-ring 12 and rear top 16 concentric, again because the diameter of diaphragm 13 is equal with weld-ring 12 external diameter, so diaphragm 13 and weld-ring 12 can be fixed in concentric rings 0 well, and all with rear top 16 concentric.Then by rear top 16 level, be docked to sinciput 15, because core body 11 is thicker than sinciput groove 18, and the diameter of core body front end 35 is equal with weld-ring 12 external diameter, so core body front end 35 is also limited by concentric rings 0.Now, core body 11, diaphragm 13, weld-ring 12 concentric, make argon gas stream channel unit 17 advance along gas port direction, rear top, by rear top 16 and sinciput 15 dieback by rotating swinging handle 32.Finally concentric rings 0 is moved to the second shaft shoulder 22 end, can expose the weld of core body 11 and weld-ring 12, diaphragm 13 is encapsulated in the middle of the two, as shown in Figure 6.
Before welding, first logical argon gas provides oxygen-free environment.When welding gun faces toward the commissure of core body 11 and weld-ring 12; argon gas source is communicated with welding gun and argon gas stream channel unit 17 by tunger tube; first argon gas stream 9 realizes the protection to current weld seam; the cavity 37 that argon gas stream channel unit 17 is formed by the gas port of center, rear top 16 23 and diaphragm 13 and weld-ring 12 is mutually through, can realize the protection of the second argon gas stream 10 pairs of core body diaphragm welded encapsulation body inside.In welding process, rotate scroll chuck 20, the synchronous axial system of scroll chuck 20, sinciput 15, core body 11, diaphragm 13, weld-ring 12, rear top 16, rotor 26 can be realized, can weld with weld-ring weld seam surrounding core body.After welding end welding gun is removed, the argon gas stream of weld seam side surface direction can continue as welding assembly inside provides ar gas environment, meanwhile, part argon gas penetrates into welding assembly outside from weld-ring 12 and the gap of the shaft shoulder 21 junction, rear top first, prevents welding assembly outside to be oxidized.
Claims (10)
1. the argon gas stream air supply method of core body diaphragm welded encapsulation, is characterized in that: comprise the first argon gas stream provided facing to described core body and weld-ring weld seam, to carry out protection against oxidation to the weld seam of current formation; The second argon gas stream simultaneously provided from described diaphragm side, to form ar gas environment in the cavity formed at described diaphragm and weld-ring, carries out protection against oxidation to established weld seam.
2. the argon gas stream air supply method of core body diaphragm welded encapsulation according to claim 1, is characterized in that: the direction of described second argon gas stream is vertical with the direction of the first argon gas stream.
3. the argon gas stream air supply method of core body diaphragm welded encapsulation according to claim 1, is characterized in that: the flow of first, second argon gas stream is 7.5 ~ 10L/min altogether.
4. the argon gas stream feeder of core body diaphragm welded encapsulation, is characterized in that: comprise lathe, welding gun, sinciput, Hou Ding, argon gas stream channel unit, concentric ring, argon gas source and tunger tube; Described sinciput one end is provided with the groove for setting-in core body, and is held in the scroll chuck of lathe; Argon gas stream channel unit one end is provided with location sunny side and is connected on lathe tailstock; The one end on rear top is provided with the location back suitable with described location sunny side and center is provided with gas port, and rear top carries out axial location by the location back on the location sunny side of argon gas stream channel unit one end; Concentric ring to be set on rear top and to be formed with rear top corresponding end and holds diaphragm and the cavity for the weld-ring that encapsulates diaphragm; Described welding gun is placed in the position while welding place facing to core body and weld-ring, and argon gas source is communicated with welding gun and argon gas stream channel unit by tunger tube, and the cavity that argon gas stream channel unit is formed by the gas port of Hou Ding center and diaphragm and weld-ring is mutually through.
5. the argon gas stream feeder of core body diaphragm welded encapsulation according to claim 4, it is characterized in that: described rear top is provided with the face of cylinder that the diameter that coordinates with weld-ring, concentric ring increases successively vertically successively, axially forming first shaft shoulder and second shaft shoulder that are used for weld-ring and concentric ring axial location successively; Described rear top is also provided with argon return passage, and the cavity that argon return passage end and diaphragm and weld-ring are formed is through, and the other end communicates with air.
6. the argon gas stream feeder of the core body diaphragm welded encapsulation according to claim 4 or 5, is characterized in that: described argon gas stream channel unit comprises connector and rotor, and rotor is located in connector rotationally; Connector is provided with the first gas port be communicated with tunger tube, rotor is circumferentially being provided with guide ring with the first gas port corresponding position, guide ring place is at least provided with 1 the second wireway and is communicated with the 3rd wireway of rotor center by guide ring, and the first wireway, guide ring, the second wireway and the 3rd wireway are communicated with formation argon gas stream passage; Described argon gas stream channel unit is connected on the tailstock of described lathe, along with the push rod on tailstock moves axially.
7. the argon gas stream feeder of core body diaphragm welded encapsulation according to claim 6, is characterized in that: described rotor front end, for conical, forms location sunny side.
8. the argon gas stream feeder of core body diaphragm welded encapsulation according to claim 7, is characterized in that: the end of described Hou Ding center gas port is tapered opening, forms the location back.
9. the argon gas stream feeder of core body diaphragm welded encapsulation according to claim 5, is characterized in that: identical with the second shaft shoulder diameter after first shaft shoulder suit weld-ring on described rear top.
10. the argon gas stream feeder of core body diaphragm welded encapsulation according to claim 4, is characterized in that: the degree of depth of sinciput groove is less than the thickness of core body, and in a groove between be provided with for core body pin insert inside groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413913.0A CN105014211A (en) | 2015-07-14 | 2015-07-14 | Argon flow gas supply method and device for packaging welding of core membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413913.0A CN105014211A (en) | 2015-07-14 | 2015-07-14 | Argon flow gas supply method and device for packaging welding of core membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105014211A true CN105014211A (en) | 2015-11-04 |
Family
ID=54404706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510413913.0A Withdrawn CN105014211A (en) | 2015-07-14 | 2015-07-14 | Argon flow gas supply method and device for packaging welding of core membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105014211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098008A (en) * | 2019-12-13 | 2020-05-05 | 上海航天设备制造总厂有限公司 | Method for protecting gas on back of welding seam of corrugated pipe diaphragm |
| CN111487006A (en) * | 2020-04-16 | 2020-08-04 | 南京高华科技股份有限公司 | Micro differential pressure sensor based on stress isolation structure |
| CN113681124A (en) * | 2021-09-13 | 2021-11-23 | 北京清大天达光电科技股份有限公司 | Automatic argon arc welding device and method for special workpiece |
-
2015
- 2015-07-14 CN CN201510413913.0A patent/CN105014211A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098008A (en) * | 2019-12-13 | 2020-05-05 | 上海航天设备制造总厂有限公司 | Method for protecting gas on back of welding seam of corrugated pipe diaphragm |
| CN111487006A (en) * | 2020-04-16 | 2020-08-04 | 南京高华科技股份有限公司 | Micro differential pressure sensor based on stress isolation structure |
| CN113681124A (en) * | 2021-09-13 | 2021-11-23 | 北京清大天达光电科技股份有限公司 | Automatic argon arc welding device and method for special workpiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105014211A (en) | Argon flow gas supply method and device for packaging welding of core membrane | |
| CN101862886A (en) | Hot wire consumable electrode gas protection welding method and realization device thereof | |
| CN107186322B (en) | Half-split hollow tungsten electrode coaxial wire feeding inert gas shielded welding gun | |
| CN105436672B (en) | A kind of hollow cathode ring-type negative pressure arc-welding method | |
| CN103084579B (en) | Device and process for spherical powder production with rotating electrode | |
| CN106392277A (en) | Underwater local dry arc welding gun device generating vortex airflow | |
| CN107138734A (en) | A kind of PREP powder manufacturing apparatus and method | |
| CN107414257A (en) | A kind of water-cooled TIG welds rotary arc sensor | |
| CN205147553U (en) | Argon arc welds automatic weld platform | |
| CN105171209A (en) | TIG welding gun | |
| CN105108289B (en) | A kind of gas metal-arc welding welding gun with hollow tungsten electrode | |
| CN109483022B (en) | Gas-magnetic combined regulation and control double-tungsten-electrode TOPTIG welding method | |
| CN103639605A (en) | Novel Plasma-MIG (metal-inert gas) hybrid welding wire feeding mechanism and control method thereof | |
| CN110976944A (en) | Drilling equipment for machining motor shell | |
| CN205817052U (en) | Congruent melting pond mariages CO2/MIG/MAG welding gun | |
| CN210967354U (en) | Electric spark micro-hole machining spindle head with outer-coated liquid beam holding wire | |
| CN208231059U (en) | Fine plasma burning torch | |
| CN105478969B (en) | Double central negative pressure electric arc welding with filler wire method | |
| CN112975066A (en) | TIG welding device for circular seam of thin-walled tube and end plug | |
| CN105312862B (en) | A kind of hermetically sealed case component processing technology | |
| CN107150156A (en) | It is a kind of automatic for solder stick smoking electric iron and its application method | |
| CN203765153U (en) | Gas shielded welding gun for thick wire high-speed automatic welding | |
| CN206393027U (en) | A kind of arc welding gun device of local dry cavity under water for producing eddy airstream | |
| CN106392276B (en) | A kind of the CoTIG welding gun and welding method of compressible electric arc | |
| CN209698455U (en) | Arc discharge microexplosion processing and turning composite processing machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151104 |