CN102848139A - Connection pipe, production method thereof and gas collection tube assembly - Google Patents
Connection pipe, production method thereof and gas collection tube assembly Download PDFInfo
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- CN102848139A CN102848139A CN2012101897212A CN201210189721A CN102848139A CN 102848139 A CN102848139 A CN 102848139A CN 2012101897212 A CN2012101897212 A CN 2012101897212A CN 201210189721 A CN201210189721 A CN 201210189721A CN 102848139 A CN102848139 A CN 102848139A
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Abstract
Disclosed is a connection pipe. The connection pipe comprises a base pipe and a welding pipe which is fixedly connected with the base pipe. The connection pipe is characterized in that the base pipe and the welding pipe are in interference fit, welded and fixed, the base pipe is made of a stainless steel material, and the welding pipe is made of a copper material. The invention also provides a gas collection tube assembly which uses the connection pipe. According to the connection pipe, the base pipe which is made of the stainless steel material and the welding pipe which is made of the copper material are connected through the interference fit and furnace brazing. By the aid of the connection pipe, the welding reliability is guaranteed. Besides, the welding pipe which is made of copper is welded with an air conditioning system pipeline directly, the acid cleaning process is omitted, and the pollution to the environment is reduced.
Description
Technical field
The invention belongs to refrigeration technology field, relate generally to a kind of tube connector for air-conditioning system and manufacture method thereof.
Background technology
The air-conditioning of prior art or other forms of heat pump type refrigeration system, mainly comprise compressor 101, the first heat exchanger 102 and the functional parts such as the second heat exchanger 103, restricting element 104, and the pipeline connecting parts 105 that the airtight connection of each functional part is formed the medium distribution channel, as shown in Figure 1.Its operation principle is as follows: after the air-conditioning system energising, the low-pressure steam of refrigeration system inner refrigerant is sucked also by compressor 101 and drains into the second heat exchanger 103(condenser behind the boil down to high steam), the outdoor air that sucks of the fan condenser of flowing through simultaneously, take away the heat of cold-producing medium, make high pressure refrigerant vapor be condensed into highly pressurised liquid.Undertaken entering the first heat exchanger 102(evaporimeter after the stream optimization by flow path distributor 106 behind the functional parts such as highly pressurised liquid process filter, restricting element 104), and under corresponding low pressure, evaporating the heat around drawing.Simultaneously fan makes air constantly enter evaporimeter to carry out heat exchange, and the air that turns cold after the heat release is sent to indoor, thereby room air is constantly circulated, reach the purpose that reduces temperature.
Be the operation principle of refrigerating state more than, the stream that heats cold-producing medium under the state is just in time opposite, does not repeat them here.
In above-mentioned refrigerated air-conditioning system, in order to optimize flow passage structure, reach the purpose of sufficient heat exchange, the port of export at the first heat exchanger 102 is connected with collecting pipe component 107 usually.Heating under the state, the port of export of the second heat exchanger 101 also can connect collecting pipe component, and for convenience of explanation, below being refrigerating state is that example is described.
Fig. 2 is a kind of typical collecting pipe component of prior art, by the main discharge 1 of stainless steel material machine-shaping ' as the body junction member, main discharge 1 ' the some gas-collecting branch pipes 2 by copper material machine-shaping of tube wall welding ', each gas-collecting branch pipe 2 ' be connected with the port of export of evaporimeter.Main discharge 1 ' an end and the pipeline fitting of air-conditioning system be welded to connect, the relative other end is made encapsulation process.Main discharge 1 ' and each gas-collecting branch pipe 2 ' between, and main discharge 1 ' and pipeline connecting parts between generally adopt the flame brazing method combination.
Adopt the main discharge of stainless steel, can reduce the material cost of manufacturing; But because the material of main discharge and gas-collecting branch pipe is respectively stainless steel and copper, difficulty increases when welding between two kinds of different materials, and because air-conditioning system pipeline normally adopts copper material to make, therefore when the main discharge with stainless steel is connected to air-conditioning system pipeline, also increased the difficulty of welding.
Therefore, how designing a kind of tube connector of being convenient to collecting pipe component is connected to air-conditioning system pipeline, is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of new tube connector and this tube connector is not easy to the problem that is connected with air-conditioning system pipeline to overcome the main discharge of stainless steel in the prior art, for this reason, the present invention by the following technical solutions:
A kind of tube connector, described tube connector comprises parent tube, and the welded pipe that is fixedly connected with described parent tube, it is characterized in that, described parent tube and welded pipe are implemented to be welded and fixed after by interference fit.
Preferably, described parent tube adopts stainless steel material to make, and described welded pipe adopts the red copper material to make.
Preferably, the wall thickness of described parent tube is 0.5 ~ 0.8mm, and the wall thickness of described welded pipe is 0.9 ~ 1.2mm.
Preferably, described parent tube is straight tube, and an end of described welded pipe is provided with choke, and described choke stretches in the described parent tube fixing.
Preferably, described choke comprises that peripheral part and setting are the lip-deep some lug bosses of described peripheral part.
Preferably, described lug boss is along the axially extended convex tendon of described choke, and the height of described lug boss is 0.08 ~ 0.12mm.
Preferably, the internal perisporium interference fit of described lug boss and described parent tube, its magnitude of interference is 0.02 ~ 0.04mm, the internal perisporium of described peripheral part and described parent tube is matched in clearance.
Alternatively, described welded pipe is straight tube, and an end of described parent tube is provided with expansion mouth, and described welded pipe is stretched in the described expansion mouth fixing.
On the basis of above-mentioned tube connector, the present invention also provides a kind of collecting pipe component, described collecting pipe component comprises main discharge and is connected in some arms on the described main discharge, it is characterized in that, at least one end of described main discharge is provided with the tube connector that invention provides, and is connected with the pipeline of air-conditioning system by described tube connector.
On this basis, the present invention also provides a kind of manufacture method of tube connector, it is characterized in that, may further comprise the steps:
11) parent tube of preparation stainless steel and the welded pipe of red copper material;
12) end with welded pipe carries out reducing, and the processing lug boss;
13) choke of welded pipe being stretched in the parent tube interference fit fixes;
14) put into scolder in the junction of parent tube and welded pipe, implement to be welded and fixed.
Simultaneously, the present invention also provides another kind of manufacture method, may further comprise the steps:
21) parent tube of preparation stainless steel and the welded pipe of red copper material;
22) end with parent tube carries out enlarging, forms expansion mouth;
23) welded pipe being stretched in the expansion mouth of described parent tube interference fit fixes;
24) put into scolder in the junction of parent tube and welded pipe, implement to be welded and fixed.
Tube connector provided by the invention by interference fit and implement the mode of furnace brazing, is connected with the welded pipe of copper material on the parent tube of stainless steel material, and this tube connector can guarantee the reliability of welding; And, copper welded pipe can be directly and air-conditioning system pipeline weld, cancelled simultaneously acid pickling step, be conducive to reduce the pollution to environment.
Description of drawings
Fig. 1: air-conditioning system schematic diagram;
Fig. 2: the structural representation of prior art collecting pipe component;
Fig. 3: the parent tube of first embodiment of the invention and welded pipe structural representation;
Fig. 4: the profile of welded pipe among Fig. 3;
Fig. 5: the parent tube of second embodiment of the invention and welded pipe structural representation;
Fig. 6: the flow chart of the tube connector manufacture method that the present invention provides;
Fig. 7: the flow chart of the another kind of manufacture method of the tube connector that the present invention provides.
Symbol description among the figure:
1 '-main discharge;
2 '-gas-collecting branch pipe;
The 1-parent tube; The 11-expansion mouth; 12-parent tube body; 13-enlarging transition part;
The 2-welded pipe; The 21-choke; The 22-body; 23-reducing transition part; The 211-lug boss; The 212-peripheral part;
The 101-compressor;
102-the first heat exchanger;
103-the second heat exchanger 103;
The 104-restricting element;
The 105-pipeline connecting parts;
The 106-flow path distributor;
The 107-collecting pipe component.
The specific embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.
Embodiment one:
Please refer to Fig. 3, Fig. 4, Fig. 3 is parent tube and the welded pipe structural representation of first embodiment of the invention; Fig. 4 is the profile of welded pipe among Fig. 3.
As shown in Figure 3, tube connector comprises parent tube 1 and welded pipe 2.Wherein, parent tube 1 adopts stainless steel material to make, in a tubular form.It is to be noted, only show the end that parent tube 1 is connected with welded pipe 2 among Fig. 3, structure for the other end is not construed as limiting, that is to say, the structure of this tube connector is suitable for anyly in the air-conditioning system relating to stainless steel and being connected the connection of pipe fitting, such as being used for the supervisor of collecting pipe component and being connected of air-conditioning system pipeline, when being connected between the stainless steel supervisor who is used for collecting pipe component and the air-conditioning system pipeline, can be with reference to the accompanying drawing 2 of prior art, on this basis, main discharge 1 ' right-hand member the tube connector (not shown) is set, this moment can be with primary stainless steel discharge 1 ' directly as the parent tube 1 in the middle of the tube connector, in this case, wall thickness that can parent tube 1 is set to 0.5 ~ 0.8mm, the wall thickness of welded pipe 2 is set to 0.9 ~ 1.2mm, and in order to realize better the present invention, the wall thickness of parent tube 1 is set to the wall thickness less than welded pipe 2.
Certainly, in Fig. 2, main discharge 1 ' left end sealing cap shutoff, and needs that use according to real system also can be without sealing cap, but adopts tube connector provided by the invention to be connected to other pipeline.
In addition, need to prove, to describe as an example of collecting pipe component example in background technology and specification, collecting pipe component is installed in the outlet of heat exchanger usually, be used for and collect by the gaseous refrigerant behind the heat exchanger, those skilled in the art are enlightening based on technology provided by the present invention, also this connecting pipe structure can be applied in the middle of the gas-distributing pipe assembly, the gas-distributing pipe assembly is installed in the import of heat exchanger usually, be used for gaseous refrigerant is divided into some branch roads, make it enter equably heat exchanger, to improve heat exchanger effectiveness.
In the selection of material, wherein, the material of welded pipe 2 can be selected the TP2Y copper material, and the material of parent tube 1 can be selected the SUS304 stainless steel.
Because the rate of expanding with heat and contract with cold of copper material will be higher than stainless steel, therefore, when implementing welding, the expansion amplitude of welded pipe 2 is greater than parent tube 1, like this, will make welding between the two more firm, reliable.
Further, in order to improve the welding effect of choke 21 and parent tube 1, can also make further improvement to choke 21.Specifically as shown in Figure 4, choke 21 comprises peripheral part 212 and is arranged on peripheral part 212 lip-deep some lug bosses 211.In the middle of present embodiment; this lug boss 211 is along the axially extended some convex tendons of choke; the convex tendon of this mode is convenient to processing; certainly; those skilled in the art are based on enlightenment of the present invention; can also make various variations to the structure of lug boss 211, these variations also should belong to protection scope of the present invention.
Particularly, the height of above-mentioned lug boss 211 (is that the top of lug boss 211 is far from the vertical range of bottom, in Fig. 4, be labeled as d) be preferably 0.08 ~ 0.12mm, when this can guarantee that highly choke 21 is implemented interference fit with the inwall of parent tube 1, can play good fixed effect.And after the internal perisporium interference fit of lug boss 211 and parent tube 1, its magnitude of interference is 0.02 ~ 0.04mm, and simultaneously, peripheral part 212 is the matched in clearance state with the internal perisporium of parent tube 1.Like this, when implementing furnace brazing, scolder can fully enter the gap between peripheral part 212 and parent tube 1 internal perisporium, thereby makes the better effects if of welding.
In the middle of the present embodiment and accompanying drawing, the quantity of above-mentioned convex tendon is 4, and this only is to adopt for convenience of description, and does not mean that the restriction to convex tendon quantity.Those skilled in the art can understand, can select arbitrarily suitable convex tendon quantity to realize the present invention.
For the needs processed and the assurance of welding quality, when the external diameter of stainless steel parent tube 1 is during less than 25.4mm, the choke of welded pipe 2 is arranged lug boss; When the external diameter of stainless steel parent tube 1 during greater than 25.4mm, also lug boss can be set.
Embodiment two:
Please refer to parent tube and welded pipe structural representation that Fig. 5, Fig. 5 are first embodiment of the invention.
In the middle of embodiment two, take processing mode that parent tube 1 is carried out enlarging, parent tube 1 just comprises parent tube body 12 and the expansion mouth 11 that is connected by enlarging transition part 13 like this, the external diameter of the internal diameter of expansion mouth 11 and welded pipe 2 adapts, and, the external diameter of welded pipe 2 is slightly larger comparatively speaking, so that realize interference fit between the two.
For the structure that embodiment two provides, can not need the peripheral part of welded pipe 2 is arranged lug boss, also can realize preferably welding effect.
An end of tube connector is weld part in this specification, can two ends all be weld part equally; This point those skilled in the art is appreciated that fully; Here repeat no more for this reason.
The below introduces the manufacture process of tube connector in the present embodiment, may further comprise the steps:
S11: the parent tube of preparation stainless steel and the welded pipe of red copper material.
Namely at first parent tube and welded pipe are shaped, comprise blanking, remove burr or chamfered in case of necessity.
S12: an end of welded pipe is carried out reducing, and the processing lug boss;
This step can adopt special-purpose reducing frock to carry out, and carries out the processing of lug boss after reducing again.So that the internal perisporium of the lug boss on the choke and parent tube is realized interference fit, the magnitude of interference is controlled between 0.02 ~ 0.04mm.
S13: the choke of welded pipe is stretched in the parent tube interference fit fix;
S14: scolder is put in the junction in parent tube and welded pipe, implements to be welded and fixed.
When implementing, spelter bronze (being generally weld-ring) is positioned over parent tube 1 and weld part 2 joints after the interference fit, then by the mode of furnace brazing, implement fixing.This step welding step can be carried out simultaneously with other welding step, such as, when tube connector provided by the invention is applied to the welding of main discharge, welding everywhere can be finished by a furnace brazing, greatly improve the efficient of welding.
Corresponding to the structure of above-described embodiment two, can also realize in accordance with the following steps the manufacturing of tube connector:
S21: the parent tube of preparation stainless steel and the welded pipe of red copper material;
Namely at first parent tube and welded pipe are shaped, comprise blanking, remove burr or chamfered in case of necessity.
S22 a: end of parent tube is carried out enlarging, form expansion mouth;
This one can adopt special-purpose flaring tooling to finish, so that the internal diameter of expansion mouth is slightly less than the external diameter of welded pipe, to realize both interference fit.
S23: welded pipe is stretched in the expansion mouth of described parent tube interference fit and fixed;
S24: scolder is put in the junction in parent tube and welded pipe, implements to be welded and fixed.
Make similarly to the first of above introducing, when implementing, spelter bronze (being generally weld-ring) is positioned over parent tube 1 and weld part 2 joints after the interference fit, then by the mode of furnace brazing, implement fixing.This step welding step can be carried out simultaneously with other welding step, such as, when tube connector provided by the invention is applied to the welding of main discharge, welding everywhere can be finished by a furnace brazing, greatly improve the efficient of welding.
It below only is the preferred embodiment that exemplifies for setting forth technical scheme of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, all these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. tube connector, described tube connector comprises parent tube (1), and the welded pipe (2) that is fixedly connected with described parent tube (1), it is characterized in that, described parent tube (1) and described welded pipe (2) are welded and fixed by implementing after the interference fit.
2. tube connector as claimed in claim 1 is characterized in that, described parent tube (1) adopts stainless steel material to make, and described welded pipe (2) adopts the red copper material to make.
3. tube connector as claimed in claim 2 is characterized in that, the wall thickness of described parent tube (1) is 0.5 ~ 0.8mm, and the wall thickness of described welded pipe (2) is 0.9 ~ 1.2mm.
4. tube connector as claimed in claim 3 is characterized in that, described parent tube (1) is straight tube, and an end of described welded pipe (2) is provided with choke (21), and described choke (21) stretches in the described parent tube (1) fixing.
5. tube connector as claimed in claim 4 is characterized in that, described choke (21) comprises that peripheral part (212) and setting are the lip-deep some lug bosses of described peripheral part (212) (211).
6. tube connector as claimed in claim 5 is characterized in that, described lug boss (211) is that the height of described lug boss (211) is 0.08 ~ 0.12mm along the axially extended convex tendon of described choke (21).
7. tube connector as claimed in claim 6, it is characterized in that, the internal perisporium interference fit of described lug boss (211) and described parent tube (1), its magnitude of interference is 0.02 ~ 0.04mm, described peripheral part (212) is matched in clearance with the internal perisporium of described parent tube (1).
8. tube connector as claimed in claim 3 is characterized in that, described welded pipe (2) is straight tube, and an end of described parent tube (1) is provided with expansion mouth (11), and described welded pipe (2) is stretched in the described expansion mouth (11) fixing.
9. collecting pipe component, comprise main discharge (1 ') and be connected in some arms (2 ') on the described main discharge (1 '), it is characterized in that, at least one end of described main discharge (1 ') is provided with each described tube connector such as claim 1-8, is connected with the pipeline of air-conditioning system by described tube connector.
10. the manufacture method of a tube connector is characterized in that, may further comprise the steps:
11) parent tube (1) of preparation stainless steel and the welded pipe (2) of red copper material;
12) end with welded pipe (2) carries out reducing, and processing lug boss (211);
13) choke (21) of welded pipe (2) being stretched in the parent tube (1) interference fit fixes;
14) put into scolder in the junction of parent tube (1) and welded pipe (2), implement to be welded and fixed.
11. the manufacture method of a tube connector is characterized in that, may further comprise the steps:
21) parent tube (1) of preparation stainless steel and the welded pipe (2) of red copper material;
22) end with parent tube (1) carries out enlarging, forms expansion mouth (11);
23) the middle interference fit of expansion mouth (11) that welded pipe (2) is stretched into described parent tube (1) is fixed;
24) put into scolder in the junction of parent tube (1) and welded pipe (2), implement to be welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101897212A CN102848139A (en) | 2012-06-08 | 2012-06-08 | Connection pipe, production method thereof and gas collection tube assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101897212A CN102848139A (en) | 2012-06-08 | 2012-06-08 | Connection pipe, production method thereof and gas collection tube assembly |
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| CN102848139A true CN102848139A (en) | 2013-01-02 |
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| CN2012101897212A Pending CN102848139A (en) | 2012-06-08 | 2012-06-08 | Connection pipe, production method thereof and gas collection tube assembly |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511702A (en) * | 2013-10-18 | 2014-01-15 | 嵊州市致远焊接制品有限公司 | Four-beam stainless steel water inlet and outlet pipe and production method thereof |
| CN103537875A (en) * | 2013-10-25 | 2014-01-29 | 嵊州市致远焊接制品有限公司 | Process for machining refrigerating pipe fittings |
| CN104209616A (en) * | 2014-08-05 | 2014-12-17 | 上海思乐得不锈钢制品有限公司 | Welding method of vacuum bottom cover assembly |
| CN105089979A (en) * | 2015-08-18 | 2015-11-25 | 珠海凌达压缩机有限公司 | Exhaust pipe, forming method for exhaust pipe and compressor |
| CN108730666A (en) * | 2017-04-17 | 2018-11-02 | 新昌县四通机电有限公司 | A kind of muffler |
| CN108839539A (en) * | 2018-08-06 | 2018-11-20 | 江苏秋实汽车空调有限公司 | A kind of Tube-sheet Welding combination suitable for air conditioning for automobiles |
| CN109855467A (en) * | 2019-03-14 | 2019-06-07 | 扈杰 | Heat exchanger joint, connector manufacturing method and the method for welding with heat exchanger core body |
| CN113305390A (en) * | 2021-05-26 | 2021-08-27 | 成立航空股份有限公司 | Vacuum brazing method for interference fit clearance |
| WO2022156545A1 (en) * | 2021-01-21 | 2022-07-28 | 浙江盾安人工环境股份有限公司 | Gas collecting pipe assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182981A (en) * | 1984-09-28 | 1986-04-26 | Fujiki Kosan Kk | Welding method of different metallic pipes |
| JPS61165271A (en) * | 1985-01-16 | 1986-07-25 | Sanou Kogyo Kk | Clad steel pipe |
| CN2888223Y (en) * | 2006-05-15 | 2007-04-11 | 浙江盾安精工集团有限公司 | Connection tube for split type air conditioner |
| CN201439847U (en) * | 2009-01-24 | 2010-04-21 | 丹佛斯（天津）有限公司 | Connecting structure of valve body and pipe and pipe matching with valve body |
| CN102338253A (en) * | 2010-07-21 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel pipeline element for refrigeration system and manufacture process thereof |
| CN102338517A (en) * | 2010-07-28 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel liquid reservoir and manufacturing process thereof |
-
2012
- 2012-06-08 CN CN2012101897212A patent/CN102848139A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182981A (en) * | 1984-09-28 | 1986-04-26 | Fujiki Kosan Kk | Welding method of different metallic pipes |
| JPS61165271A (en) * | 1985-01-16 | 1986-07-25 | Sanou Kogyo Kk | Clad steel pipe |
| CN2888223Y (en) * | 2006-05-15 | 2007-04-11 | 浙江盾安精工集团有限公司 | Connection tube for split type air conditioner |
| CN201439847U (en) * | 2009-01-24 | 2010-04-21 | 丹佛斯（天津）有限公司 | Connecting structure of valve body and pipe and pipe matching with valve body |
| CN102338253A (en) * | 2010-07-21 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel pipeline element for refrigeration system and manufacture process thereof |
| CN102338517A (en) * | 2010-07-28 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel liquid reservoir and manufacturing process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工程学会焊接学会: "《焊接手册 焊接方法及设备》", 31 January 2012, article "第21章 钎焊方法及工艺", pages: 571 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511702A (en) * | 2013-10-18 | 2014-01-15 | 嵊州市致远焊接制品有限公司 | Four-beam stainless steel water inlet and outlet pipe and production method thereof |
| CN103537875A (en) * | 2013-10-25 | 2014-01-29 | 嵊州市致远焊接制品有限公司 | Process for machining refrigerating pipe fittings |
| CN103537875B (en) * | 2013-10-25 | 2016-08-17 | 嵊州市致远焊接制品有限公司 | The processing technique of refrigerating pipe |
| CN104209616A (en) * | 2014-08-05 | 2014-12-17 | 上海思乐得不锈钢制品有限公司 | Welding method of vacuum bottom cover assembly |
| CN104209616B (en) * | 2014-08-05 | 2019-05-31 | 上海思乐得不锈钢制品有限公司 | The welding method of vacuum bottom cover assembly |
| CN105089979A (en) * | 2015-08-18 | 2015-11-25 | 珠海凌达压缩机有限公司 | Exhaust pipe, forming method for exhaust pipe and compressor |
| CN108730666A (en) * | 2017-04-17 | 2018-11-02 | 新昌县四通机电有限公司 | A kind of muffler |
| CN108839539A (en) * | 2018-08-06 | 2018-11-20 | 江苏秋实汽车空调有限公司 | A kind of Tube-sheet Welding combination suitable for air conditioning for automobiles |
| CN109855467A (en) * | 2019-03-14 | 2019-06-07 | 扈杰 | Heat exchanger joint, connector manufacturing method and the method for welding with heat exchanger core body |
| CN109855467B (en) * | 2019-03-14 | 2024-03-22 | 扈杰 | Heat exchanger joint, joint manufacturing method and brazing method with heat exchanger core |
| WO2022156545A1 (en) * | 2021-01-21 | 2022-07-28 | 浙江盾安人工环境股份有限公司 | Gas collecting pipe assembly |
| CN113305390A (en) * | 2021-05-26 | 2021-08-27 | 成立航空股份有限公司 | Vacuum brazing method for interference fit clearance |
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Application publication date: 20130102 |