CN109079361A - Stainless steel pipes exempt from argon gas welding procedure - Google Patents
Stainless steel pipes exempt from argon gas welding procedure Download PDFInfo
- Publication number
- CN109079361A CN109079361A CN201811057288.0A CN201811057288A CN109079361A CN 109079361 A CN109079361 A CN 109079361A CN 201811057288 A CN201811057288 A CN 201811057288A CN 109079361 A CN109079361 A CN 109079361A
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- Prior art keywords
- welding
- welded
- stainless steel
- steel pipes
- pipes
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention discloses a kind of stainless steel pipes to exempt from argon gas welding procedure, polishing A, is respectively cut in two sections of stainless steel pipes both ends to be welded and connected, until both ends are fitted to each other；B, the interface to be welded of pipeline, then hot-air seasoning are successively cleaned repeatedly with degreasing liquor, alkyl carboxylic acid sodium solution；C, it is welded using auxiliary welding equipment；E, the auxiliary welding equipment is removed in end to be welded；F, manual inspection, which whether there is, does not weld position, and if it exists, position is not then welded in air shooter alignment, sets supplying nitrogen to non-welding position, welding gun is recycled to carry out repair welding.Welding procedure of the invention does not use expensive argon gas, and construction cost is low；And welding process in ultrasonic environment by the way of welding, and adjust supersonic frequency, the ultrasonic wave of various frequencies can be made full use of, which to adjust the ion flow that quickening weld part split-phase is melted between part, reduces its welding stress to effectively improve the uniformity of welding.
Description
Technical field
The present invention relates to welding procedure fields.It is more particularly related to which a kind of stainless steel pipes exempt from argon gas welding
Technique.
Background technique
For special medias such as petroleum gases, pipeline transportation is a kind of the most economic, simple means of transportation, and pipeline
Connection relies primarily on welding to complete, in pipeline welding process, usually in pipeline back side argon-filled protection, but argon gas price ten
Divide valuableness, a large amount of argon fillings are very unfavorable to engineering cost.
Summary of the invention
The present invention provides a kind of stainless steel pipes and exempts from argon gas welding procedure, employs nitrogen as to protect gas, engineering cost is big
Amplitude reduction.
In order to achieve the goal above, the present invention, which provides a kind of stainless steel pipes, exempts from argon gas welding procedure, comprising the following steps:
A, polishing is respectively cut in two sections of stainless steel pipes both ends to be welded and connected, until both ends are fitted to each other；
B, prepare obtain mass fraction 8% degreasing agent solution and mass fraction 6% alkyl carboxylic acid sodium solution, respectively according to
The secondary interface to be welded for cleaning pipeline repeatedly with degreasing liquor, alkyl carboxylic acid sodium solution, then hot-air seasoning；
C, two sections of stainless steel pipes are respectively placed on two stations, station is stretched out at end to be welded respectively and exposed
Come, and two segment pipes are spliced to both ends Relative vertical to be welded；Auxiliary welding equipment is set in two segment pipes to be welded two
The outside at end, wherein the auxiliary welding equipment includes:
Straight line casing 1, one end are opened wide completely, and the other end opens up the limited mouth 124 that stainless steel pipes are set for card, the limit
A circle attaches sealing rubber ring on the inside of the mouth of position, so that realizing sealing after stainless steel pipes are inserted in；
L-type casing, both ends are arranged substantially perpendicular to each other, and one end completes to open wide, and the other end, which is opened up, sets stainless steel tube for blocking
The limited mouth in road, one circle of limited mouth inside attaches sealing rubber ring, so that realizing sealing after stainless steel pipes are inserted in；
And the completely open both ends spiral connection of straight line casing, L-type casing, the two is linked into an integrated entity, it is to be welded to accommodate
The two sections of pipelines to be welded connect；
The straight line casing 1, L-type casing 2 include outer tube body 121, in interval installation inner split ring 122, it is described in every
Ring 122 will be divided into interior space, the external space inside outer tube body 121,121 surface of outer tube body opens up the air inlet for nitrogen circulation
Mouthful, interval opens up multiple ventholes, and the attached one layer of high temperature resistant sponge of medial surface face paste of inner split ring 122 on the inner split ring 122
123, so that nitrogen sequentially enters the external space of outer tube body 121, the venthole on inner split ring 122 and high temperature resistant sea through air inlet
Silk floss 123 finally reaches the interior space of outer tube body 121, to provide protective gas for welding；
D, the corner of the L-type casing opens up soldering opening, for welding gun entrance；
And the corner of L-type casing is transparent, and corresponding inside has no high temperature resistant sponge herein, checks to facilitate operation person；
Weld the place to be welded of two sections of stainless steel pipes using welding gun；
E, the auxiliary welding equipment is removed in end to be welded；
F, manual inspection, which whether there is, does not weld position, and if it exists, position is not then welded in air shooter alignment, to non-welding position
Supplying nitrogen is set, welding gun is recycled to carry out repair welding.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, are welded as secondary welding in step D, and
Welding process carries out in ultrasonic environment twice, specifically:
Two ultrasonic generators are placed near two pipeline position to be welded；
Primary welding: the frequency of preceding 1/2 Control Welding Process, two ultrasonic generators is respectively 25KHz and 38KHz,
Two ultrasonic generators are kept to work at the same time；1/2 Control Welding Process keep frequency is constant afterwards, but controls two ultrasonic waves
Generator works alternatively, every task 1min；
Secondary welding: the frequency of preceding 1/2 Control Welding Process, two ultrasonic generators is respectively 30KHz and 40KHz,
Two ultrasonic generators are kept to work at the same time；1/2 Control Welding Process keep frequency is constant afterwards, but controls two ultrasonic waves
Generator works alternatively, every task 1min.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, the air shooter by multiple sub-pipes that
This is arranged to be formed, sub-pipes structure in a circular table shape, two neighboring sub-pipes, and two sides that the two is bonded each other are recessed respectively inwards
It falls into, protrude outward to form limiting slot and positive stop strip that multiple cards that are fitted to each other are set, set by card between the two, to realize
Card between two neighboring sub-pipes sets fixation；
And gas-guide tube is installed in the front end for being located at the smallest size of sub-pipes in front end.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, the step A, wait for two sections of stainless steel pipes
Polishing is respectively cut in the both ends of welded connecting, until both ends are fitted to each other, specifically: using cutting machine by the end of one of pipeline
Mouth is cut to form protrusion, and the port of another pipeline is cut to form groove, then is polished with sand paper, so that two segment pipes
It is realized and is cooperatively connected using the clamping of protrusion and groove.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, and the station surface is equipped with for fixing
The fixture of pipeline.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, the flat adhesive of the fixture and tube contacts
Rubber antiskid pad.
Preferably, the stainless steel pipes exempt from argon gas welding procedure, and L-type is formed after two sections of steel-pipe weldings.
The present invention is include at least the following beneficial effects:
1, welding procedure of the invention does not use expensive argon gas, and construction cost is low；
2, step B of the invention recycles degreaser to remove remaining grease first with the grease of degreasing agent removal pipeline,
And the utilization remaining degreaser of sodium carboxylate solution removal previous step, secondary cleaning, cleaning effect are good；
3, using auxiliary welding equipment of the invention, it can be convenient the vertical welding for efficiently realizing two root canal roads, and
In auxiliary welding equipment, high speed protection gas nitrogen is buffered using high temperature sponge, and disperses, avoids protective gas local
The excessive Stress non-homogeneity problem caused by welding of flow velocity；
4, after welding terminates, manual inspection, which whether there is, does not weld position, and if it exists, then carries out repair welding, not only ensure that
Welding quality, and using air shooter can accurately to do not weld part carry out accurate repair welding, avoid protection unsaturated vapor, or
Person excessively causes to waste；
5, welding process in ultrasonic environment by the way of welding, and adjusts supersonic frequency, can make full use of each
The ultrasonic wave of kind frequency adjusts quickening weld part split-phase and melts the ion flow between part, to effectively improve the uniform of welding
Property, reduce its welding stress.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of welding auxiliary equipment of the invention；
Fig. 2 is the cross-sectional view of straight line casing of the invention；
Fig. 3 is the structural schematic diagram of gas transport pipeline of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained；In the description of the present invention, term " transverse direction ", " vertical
To ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", the instructions such as "outside" side
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description,
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
As shown in Figure 1, the present invention, which provides a kind of stainless steel pipes, exempts from argon gas welding procedure, comprising the following steps:
A, polishing is respectively cut in two sections of stainless steel pipes both ends to be welded and connected, until both ends are fitted to each other；
B, prepare obtain mass fraction 8% degreasing agent solution and mass fraction 6% alkyl carboxylic acid sodium solution, respectively according to
The secondary interface to be welded for cleaning pipeline repeatedly with degreasing liquor, alkyl carboxylic acid sodium solution, then hot-air seasoning；It is gone first with degreasing agent
Except the grease of pipeline, degreaser is recycled to remove remaining grease, and is remained using sodium carboxylate solution removal previous step
Degreaser, secondary cleaning, cleaning effect is good；
C, two sections of stainless steel pipes are respectively placed on two stations, station is stretched out at end to be welded respectively and exposed
Come, and two segment pipes are spliced to both ends Relative vertical to be welded；Auxiliary welding equipment is set in two segment pipes to be welded two
The outside at end,
D, the corner of the L-type casing opens up soldering opening, for welding gun entrance；
E, the auxiliary welding equipment is removed in end to be welded；
F, manual inspection, which whether there is, does not weld position, and if it exists, position is not then welded in air shooter alignment, to non-welding position
Supplying nitrogen is set, welding gun is recycled to carry out repair welding.
Wherein, as shown in Figure 1, the auxiliary welding equipment includes: straight line casing 1, one end is opened wide completely, and the other end is opened
If a circle attaches sealing rubber ring on the inside of the limited mouth, so that stainless steel pipes for blocking the limited mouth for setting stainless steel pipes
After being inserted in, sealing is realized；L-type casing 2, both ends are arranged substantially perpendicular to each other, and one end completes to open wide, and the other end is opened up for card
If the limited mouth of stainless steel pipes, a circle attaches sealing rubber ring on the inside of the limited mouth, so that after stainless steel pipes are inserted in,
Realize sealing；And the completely open both ends spiral connection of straight line casing 1, L-type casing 2, the two is linked into an integrated entity, to accommodate
Two sections of pipelines to be welded to be welded；As shown in Fig. 2, the straight line casing 1, L-type casing 2 include outer tube body, interior interval
Inner split ring is installed, outer tube internal body portion is divided into interior space, the external space by the inner split ring, and the outer tube body surface is opened up for nitrogen
The air inlet of circulation, interval opens up multiple ventholes, and the attached one layer of high temperature resistant of medial surface face paste of inner split ring on the inner split ring
Sponge, so that nitrogen sequentially enters the external space of outer tube body, the venthole on inner split ring and high temperature resistant sponge through air inlet, most
The interior space of outer tube body is reached, afterwards to provide protective gas for welding；And the corner of L-type casing is transparent, and herein correspond in
Portion has no high temperature resistant sponge, checks to facilitate operation person；Carry out the place to be welded of two sections of stainless steel pipes using welding gun
Welding；Using auxiliary welding equipment of the invention, the vertical welding for efficiently realizing two root canal roads can be convenient, and assist weldering
It connects in equipment, high speed protection gas nitrogen is buffered using high temperature sponge, and disperses, avoids protective gas local velocity mistake
The Stress non-homogeneity problem caused by welding greatly；
In another embodiment, the stainless steel pipes exempt from argon gas welding procedure, are welded as secondary weldering in step D
It connects, and welding process carries out in ultrasonic environment twice, specifically: two ultrasonic generators are placed in two pipes
Near road position to be welded；Primary welding: the frequency of preceding 1/2 Control Welding Process, two ultrasonic generators is respectively 25KHz
And 38KHz, keep two ultrasonic generators to work at the same time；1/2 Control Welding Process keep frequency is constant afterwards, but controls
Two ultrasonic generators work alternatively, every task 1min；Secondary welding: two ultrasonic waves of preceding 1/2 Control Welding Process produce
The frequency of raw device is respectively 30KHz and 40KHz, and two ultrasonic generators is kept to work at the same time；1/2 Control Welding Process afterwards
Keep frequency is constant, but controls two ultrasonic generators and work alternatively, every task 1min.Welding process uses ultrasonic wave
The mode welded in environment, and supersonic frequency is adjusted, the ultrasonic wave of various frequencies can be made full use of to adjust and accelerate weld part
Split-phase melts the ion flow between part, to effectively improve the uniformity of welding, reduces its welding stress.
In another embodiment, the stainless steel pipes exempt from argon gas welding procedure, as shown in figure 3, the gas is defeated
It send pipe to be arranged each other by multiple sub-pipes 3 to be formed, the structure in a circular table shape of sub-pipes 3, two neighboring sub-pipes, the two is bonded each other
Two sides be recessed respectively inwards, protrude outward to form limiting slot and positive stop strip that multiple cards that are fitted to each other are set, pass through two
Card between person is set, to realize that the card between two neighboring sub-pipes sets fixation；And it is located at the smallest size of sub- pipe in front end
The front end in road is installed by gas-guide tube.Using air shooter can accurately to do not weld part carry out accurate repair welding, avoid protection gas
Deficiency, or excessively cause to waste；
In another embodiment, the stainless steel pipes exempt from argon gas welding procedure, the step A, stainless by two sections
Polishing is respectively cut in steel conduit both ends to be welded and connected, until both ends are fitted to each other, specifically: using cutting machine by one of them
The port of pipeline is cut to form protrusion, and the port of another pipeline is cut to form groove, then is polished with sand paper, so that
Two segment pipes are realized using the clamping of protrusion and groove and are cooperatively connected.Make to be welded to connect more closely in this way, it is not easy to occur
Fracture.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (7)
1. a kind of stainless steel pipes exempt from argon gas welding procedure, which comprises the following steps:
A, polishing is respectively cut in two sections of stainless steel pipes both ends to be welded and connected, until both ends are fitted to each other；
B, the alkyl carboxylic acid sodium solution for preparing the degreasing agent solution and mass fraction 6% that obtain mass fraction 8%, is successively used respectively
Degreasing liquor, alkyl carboxylic acid sodium solution clean the interface to be welded of pipeline, then hot-air seasoning repeatedly；
C, two sections of stainless steel pipes are respectively placed on two stations, station is stretched out at end to be welded respectively and exposed,
And two segment pipes are spliced to both ends Relative vertical to be welded；Auxiliary welding equipment is set in two segment pipes both ends to be welded
It is external, wherein the auxiliary welding equipment includes:
Straight line casing, one end are opened wide completely, and the other end opens up the limited mouth that stainless steel pipes are set for card, on the inside of the limited mouth
One circle attaches sealing rubber ring, so that realizing sealing after stainless steel pipes are inserted in；
L-type casing, both ends are arranged substantially perpendicular to each other, and one end completes to open wide, and the other end, which is opened up, sets stainless steel pipes for card
Limited mouth, one circle of limited mouth inside attaches sealing rubber ring, so that realizing sealing after stainless steel pipes are inserted in；
And the completely open both ends spiral connection of straight line casing, L-type casing, the two is linked into an integrated entity, it is to be welded to accommodate
Two sections of pipelines to be welded；
The straight line casing, L-type casing include outer tube body, and interior interval installation inner split ring, the inner split ring will be in outer tube body
Part is divided into interior space, the external space, and the outer tube body surface opens up the air inlet for nitrogen circulation, is spaced apart on the inner split ring
If multiple ventholes, and the attached one layer of high temperature resistant sponge of medial surface face paste of inner split ring, so that nitrogen sequentially enters outside through air inlet
The external space, the venthole on inner split ring and the high temperature resistant sponge of tube body finally reach the interior space of outer tube body, to mention for welding
For protective gas；
D, the corner of the L-type casing opens up soldering opening, for welding gun entrance；
And the corner of L-type casing is transparent, and corresponding inside has no high temperature resistant sponge herein, checks to facilitate operation person；It utilizes
Welding gun weld to the place to be welded of two sections of stainless steel pipes；
E, the auxiliary welding equipment is removed in end to be welded；
F, manual inspection, which whether there is, does not weld position, and if it exists, position is not then welded in air shooter alignment, is set to non-welding position defeated
Nitrogen is sent, welding gun is recycled to carry out repair welding.
2. stainless steel pipes as described in claim 1 exempt from argon gas welding procedure, which is characterized in that be welded as two in step D
Secondary welding, and welding process carries out in ultrasonic environment twice, specifically:
Two ultrasonic generators are placed near two pipeline position to be welded；
Primary welding: the frequency of preceding 1/2 Control Welding Process, two ultrasonic generators is respectively 25KHz and 38KHz, is kept
Two ultrasonic generators work at the same time；1/2 Control Welding Process keep frequency is constant afterwards, but controls two ultrasonic waves and generate
Device works alternatively, every task 1min；
Secondary welding: the frequency of preceding 1/2 Control Welding Process, two ultrasonic generators is respectively 30KHz and 40KHz, is kept
Two ultrasonic generators work at the same time；1/2 Control Welding Process keep frequency is constant afterwards, but controls two ultrasonic waves and generate
Device works alternatively, every task 1min.
3. stainless steel pipes as described in claim 1 exempt from argon gas welding procedure, which is characterized in that the air shooter is by more
A sub-pipes are arranged to be formed each other, sub-pipes structure in a circular table shape, two neighboring sub-pipes, two sides that the two is bonded each other
It is recessed respectively inwards, protrudes outward to form limiting slot and positive stop strip that multiple cards that are fitted to each other are set, passes through card between the two
If to realize that the card between two neighboring sub-pipes sets fixation；
And gas-guide tube is installed in the front end for being located at the smallest size of sub-pipes in front end.
4. stainless steel pipes as described in claim 1 exempt from argon gas welding procedure, which is characterized in that the step A, by two sections not
Polishing is respectively cut in rust steel conduit both ends to be welded and connected, until both ends are fitted to each other, specifically: utilize cutting machine will wherein one
The port of a pipeline is cut to form protrusion, and the port of another pipeline is cut to form groove, then is polished with sand paper, to make
It obtains two segment pipes and realizes mating connection using the clamping of protrusion and groove.
5. stainless steel pipes as described in claim 1 exempt from argon gas welding procedure, which is characterized in that the station surface installation
There is the fixture for fixed -piping.
6. stainless steel pipes as claimed in claim 5 exempt from argon gas welding procedure, which is characterized in that the fixture and tube contacts
Flat adhesive rubber antiskid pad.
7. stainless steel pipes as described in claim 1 exempt from argon gas welding procedure, which is characterized in that shape after two sections of steel-pipe weldings
L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057288.0A CN109079361A (en) | 2018-09-11 | 2018-09-11 | Stainless steel pipes exempt from argon gas welding procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057288.0A CN109079361A (en) | 2018-09-11 | 2018-09-11 | Stainless steel pipes exempt from argon gas welding procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109079361A true CN109079361A (en) | 2018-12-25 |
Family
ID=64841198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811057288.0A Pending CN109079361A (en) | 2018-09-11 | 2018-09-11 | Stainless steel pipes exempt from argon gas welding procedure |
Country Status (1)
| Country | Link |
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| CN (1) | CN109079361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170803A (en) * | 2019-06-14 | 2019-08-27 | 泰州市长征冷机管件有限公司 | A kind of welding procedure for interior exhaust coil pack |
| CN111097998A (en) * | 2019-12-23 | 2020-05-05 | 保定安保能冶金设备有限公司 | Rectangular steel pipe connecting method for aluminum alloy smelting furnace |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4810703B1 (en) * | 1969-05-13 | 1973-04-06 | ||
| US3735472A (en) * | 1971-03-26 | 1973-05-29 | I Silverman | Pipe fitting weld alignment apparatus |
| JPS52126646A (en) * | 1976-04-16 | 1977-10-24 | Mitsubishi Electric Corp | Tig welding for tubes |
| JPS57127590A (en) * | 1981-01-30 | 1982-08-07 | Mitsubishi Heavy Ind Ltd | Method for connecting end part of pipe of steel pipe technique by curling |
| DE3127200A1 (en) * | 1981-07-07 | 1983-02-03 | Mannesmann AG, 4000 Düsseldorf | Process for the circumferential seam welding of pipes as well as device for carrying out the process |
| JPH09168876A (en) * | 1995-10-20 | 1997-06-30 | Harness Sogo Gijutsu Kenkyusho:Kk | Supersonic wave welding equipment |
| JP2753734B2 (en) * | 1989-06-28 | 1998-05-20 | 昭和アルミニウム株式会社 | How to connect tubing in a refrigeration cycle |
| CN104308382A (en) * | 2014-09-19 | 2015-01-28 | 合肥通用机械研究院 | Connection method and connection structure of austenitic stainless steel pressure pipeline |
| WO2015110347A1 (en) * | 2014-01-24 | 2015-07-30 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Converter unit |
| CN104874902A (en) * | 2015-05-15 | 2015-09-02 | 哈尔滨飞机工业集团有限责任公司 | Method for welding fork-shaped aluminum pipe fitting |
| CN204658934U (en) * | 2015-05-24 | 2015-09-23 | 河北聚华保温防腐工程有限公司 | A kind of heat-shrinkable T bush soldering and sealing device |
| CN107096987A (en) * | 2017-03-22 | 2017-08-29 | 华南理工大学 | A kind of quick diffusion welding method of metal bar based on pulsed current annealing |
-
2018
- 2018-09-11 CN CN201811057288.0A patent/CN109079361A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4810703B1 (en) * | 1969-05-13 | 1973-04-06 | ||
| US3735472A (en) * | 1971-03-26 | 1973-05-29 | I Silverman | Pipe fitting weld alignment apparatus |
| JPS52126646A (en) * | 1976-04-16 | 1977-10-24 | Mitsubishi Electric Corp | Tig welding for tubes |
| JPS57127590A (en) * | 1981-01-30 | 1982-08-07 | Mitsubishi Heavy Ind Ltd | Method for connecting end part of pipe of steel pipe technique by curling |
| DE3127200A1 (en) * | 1981-07-07 | 1983-02-03 | Mannesmann AG, 4000 Düsseldorf | Process for the circumferential seam welding of pipes as well as device for carrying out the process |
| JP2753734B2 (en) * | 1989-06-28 | 1998-05-20 | 昭和アルミニウム株式会社 | How to connect tubing in a refrigeration cycle |
| JPH09168876A (en) * | 1995-10-20 | 1997-06-30 | Harness Sogo Gijutsu Kenkyusho:Kk | Supersonic wave welding equipment |
| WO2015110347A1 (en) * | 2014-01-24 | 2015-07-30 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Converter unit |
| CN104308382A (en) * | 2014-09-19 | 2015-01-28 | 合肥通用机械研究院 | Connection method and connection structure of austenitic stainless steel pressure pipeline |
| CN104874902A (en) * | 2015-05-15 | 2015-09-02 | 哈尔滨飞机工业集团有限责任公司 | Method for welding fork-shaped aluminum pipe fitting |
| CN204658934U (en) * | 2015-05-24 | 2015-09-23 | 河北聚华保温防腐工程有限公司 | A kind of heat-shrinkable T bush soldering and sealing device |
| CN107096987A (en) * | 2017-03-22 | 2017-08-29 | 华南理工大学 | A kind of quick diffusion welding method of metal bar based on pulsed current annealing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170803A (en) * | 2019-06-14 | 2019-08-27 | 泰州市长征冷机管件有限公司 | A kind of welding procedure for interior exhaust coil pack |
| CN111097998A (en) * | 2019-12-23 | 2020-05-05 | 保定安保能冶金设备有限公司 | Rectangular steel pipe connecting method for aluminum alloy smelting furnace |
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Application publication date: 20181225 |