CN204094301U - Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant - Google Patents
Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant Download PDFInfo
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- CN204094301U CN204094301U CN201420435551.6U CN201420435551U CN204094301U CN 204094301 U CN204094301 U CN 204094301U CN 201420435551 U CN201420435551 U CN 201420435551U CN 204094301 U CN204094301 U CN 204094301U
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Abstract
The utility model discloses copper pipe and device for welding aluminium pipe plumb joint in a kind of refrigeration plant, conductive coil, collection chinaware, input end plate, output end plate, collection chinaware location top board and interior pipe positioning sleeve; The two ends of described coil-conductor, respectively with input end plate with exports end plate and be connected, input end plate and export end plate and be respectively used to be connected with the both positive and negative polarity of the signal output part of impulse generator; A collection chinaware location plug is respectively equipped with at the two ends of collection chinaware, the side that described collection chinaware location top board and interior pipe locating clamp plate utilize lock-screw to be separately fixed at both ends insulation support plate to deviate from mutually, the middle part of described collection chinaware location plug axially offers a through hole along it, and one end of described interior pipe positioning sleeve is inserted in the through hole of collection chinaware plug.It is convenient, quick that the utility model can coordinate welder to realize normal temperature welding, and environmental protection more, welding cost is lower.
Description
Technical field
The utility model relates to a kind of welder, particularly relates to copper pipe and device for welding aluminium pipe plumb joint in a kind of refrigeration plant.
Background technology
Along with copper material rise in price impact and the light-weighted demand of product, " aluminium is for copper " has become the important trend that product component manufactures.This just needs copper material and aluminum material to be linked into an integrated entity by welding procedure, is namely called copper aluminium welding.But copper and aluminium all belong to easy oxidation metal, and solderability is poor, good welding effect to be reached to the different-metal material welding of this copper and aluminium then very difficult.Therefore copper aluminium welding is an international welding difficult problem always.Existing solder technology has the following disadvantages:
1. copper aluminium welding traditionally commonly uses the method soldering copper aluminium of tining and molten tin, this method is shaping bad, there is no good intensity, the low workpiece that can not be welded on again under hot operation of fusing point due to tin, so this kind of technique is only suitable under normal temperature condition small workpiece uses, be difficult to be applied in the production of other products.
2. with welding method soldering copper aluminium such as thermofussion welding, friction welding (FW), electron beam welding, supersonic weldings, the problems such as the generation of residual stress and distortion can be caused due to uneven temperature field, welding joint fragility is out large, easily to crack and weld seam easily produces pore, there is fracture unavoidably in the workpiece welded, just may make electric conductor open circuit after there is fracture, make pipe leakage, so often do not reach the effect required in actual production.
3. in the production process of existing refrigeration plant, the weldering of copper pipe and copper pipe and copper pipe and base weld that most what adopt is all flame Heating Brazing technique, by soldering processes using solder (copper aluminium welding rod) as intermediate medium, make copper pipe together with Al pipe butt welding.The oxide-film of metal surface abolished by brazing flux (copper and aluminium welding cream) under high-temperature heating state, makes surface invade profit, is conducive to the solder after melting and flows in weld gap, make it more easily be filled in weld gap.Solder at high temperature melt and with two kinds of metal generation metallurgical reactions, solder is infiltrated in copper material and aluminium molecular structure by capillarity, forms stable metallurgy layer.Joint after welding is shaped better, tension shear behavior and conductive corrosion-resistant good, be copper aluminium welding method conventional at present.
But the method is defectiveness also: first, the formation of weld seam by siphon principle, the solder after fusing is flowed and fills the process of whole weld gap, by the impact of materials and process, and the impact of material surface cleaning state, all the time there is brazing flux rupture of membranes, clear and rich effect is bad, solder is caused to be filled uneven, the uniformity of joint can be affected, defect also can often (as pore, solidification cracking etc.), make weld joint air-tight index and the weld defect such as weld strength index is not up to standard, directly affect weldment quality and life-span.
In addition, traditional handicraft production environment is severe, and disaster hidden-trouble is large, dangerous; Labor strength is large, and welding efficiency is low; Welding quality is unstable, and joints unsightly; Welding process produces the negative effects to environment such as high temperature, heating, flue dust, waste gas.
Moreover, due to consume in a large number solder flux solder with other auxiliary materials, and high energy consumption etc., the welding cost of this prior welding mode is higher.
For solving this problem, applicant has invented a kind of welder, but lack the plumb joint that can be used on this device on the market, therefore how to make this plumb joint, is the technical problem that those skilled in the art are badly in need of solving.
summary of the invention
For prior art above shortcomings, the purpose of this utility model is just to provide copper pipe and device for welding aluminium pipe plumb joint in a kind of refrigeration plant, welder can be coordinated to realize normal temperature welding convenient, quick, and environmental protection more, welding cost is lower.
To achieve these goals, the technical solution adopted in the utility model is such: copper pipe and device for welding aluminium pipe plumb joint in a kind of refrigeration plant, is characterized in that: conductive coil, collection chinaware, input end plate, output end plate, collection chinaware location top board and interior pipe positioning sleeve;
Described conductive coil comprises 3 groups of coil-conductors, the two ends of described coil-conductor respectively with input end plate with export end plate and be connected, insulating barrier is provided with between adjacent two circle coil-conductors, be respectively arranged with an end insulation support plate in the outside of input end plate and output end plate, both ends insulation support plate is connected as a whole by insulation connecting bolt; Input end plate is respectively used to be connected with the both positive and negative polarity of the signal output part of impulse generator with output end plate;
Described collection chinaware is positioned at conductive coil and leads to axial line with conductive coil, a collection chinaware location plug is respectively equipped with at the two ends of collection chinaware, described collection chinaware location plug and collection chinaware coaxial inner conductor, the side that described collection chinaware location top board and interior pipe locating clamp plate utilize lock-screw to be separately fixed at both ends insulation support plate to deviate from mutually, thus collection chinaware location plug is pushed down, to lock the axial location of collection chinaware;
The middle part of described collection chinaware plug axially offers a through hole along it, the small end of described interior pipe positioning sleeve inserts in the through hole of right side collection chinaware plug, the outer face of collection chinaware plug is close to by shoulder step, and in the top board axial compression of right side collection chinaware location, the large end face of pipe positioning sleeve is also fixing.
Compared with prior art, the utility model has the advantage of: structure is simple, whole welding process, without heating, belongs to solid State Welding, cold welding technique; After welding can not there is any change, without residual stress in the metallic character of weldment material; Bi-material forms the stable metallurgical binding of interatomic distance in seam face; It is evenly coated that solder side is 360 ° of faces of cylinder, and weld seam is fine and close and intensity is high; Welding point is aesthetic in appearance, surperficial without impression, not damaged; Can precisely controlled welding parameter, welding quality stable is reliable, and uniformity is good; Speed of welding is fast, one-shot forming, and production efficiency is high, and labour intensity is low, is applicable to produce in enormous quantities and automation; Without the need to any scaling powder, solder and protective gas, welding cost is low; Whole process without hot, radiationless, smokeless, without waste gas, no-spark, without splash, without the need to cooling water, consume without auxiliary material, energy consumption is very low, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-conductive coil, 2-collection chinaware, 3-input end plate, 4-export end plate, 5-collection chinaware location top board, 6-interior pipe positioning sleeve, 7-insulating barrier, 8-insulation support plate, 9-connecting bolt, 10-collection chinaware plug, 11-lock-screw, 12-outer tube, 13-interior pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: see Fig. 1, copper pipe and device for welding aluminium pipe plumb joint in a kind of refrigeration plant, conductive coil 1, collection chinaware 2, input end plate 3, output end plate 4, collection chinaware location top board 5 and interior pipe 13 positioning sleeve 6.
Described conductive coil 1 comprises 3 groups of coil-conductors, the two ends of described coil-conductor respectively with input end plate 3 with export end plate 4 and be connected, insulating barrier 7 is provided with between adjacent two circle coil-conductors, be respectively arranged with an end insulation support plate 8 in the outside of input end plate 3 and output end plate 4, both ends insulation support plate 8 is connected as a whole by insulation (high strength) connecting bolt 9; Input end plate 3 is respectively used to be connected by the both positive and negative polarity of cable with the signal output part of impulse generator with output end plate 4.
Described collection chinaware 2 is positioned at conductive coil 1 and leads to axial line with conductive coil 1, a collection chinaware plug 10 is respectively equipped with at the two ends of collection chinaware 2, described collection chinaware plug 10 and collection chinaware 2 coaxial inner conductor, the side that described collection chinaware location top board 5 and interior pipe 13 locating clamp plate utilize lock-screw 11 to be separately fixed at both ends insulation support plate 8 to deviate from mutually, thus collection chinaware plug 10 is pushed down, to lock the axial location of collection chinaware 2.
The middle part of described collection chinaware plug 10 axially offers a through hole along it, the small end of described interior pipe positioning sleeve 6 inserts in the through hole of right side collection chinaware plug 10, the outer face of collection chinaware plug 10 is close to by shoulder step, and right side collection chinaware location top board 5 is axially pushed down the large end face of interior pipe positioning sleeve 6 and fixes.
By coaxial cable, conductive coil 1 is connected with the main frame of welder during use.During welding, weldment outer tube 12 is inserted in collection chinaware 2 from the left end of plumb joint, and is close to the end of interior pipe positioning sleeve 6, prevent from moving right.Then, by the auxiliary jig positioning and locking of the exposed junction of weldment outer tube 12, prevent from being moved to the left.And then pipe in weldment 13 is inserted into welding position in the mesopore of interior pipe positioning sleeve 6 and prevents axial displacement (must insertion depth be controlled), make outer tube 12 be in the position to be welded of interior pipe 13 the inward flange step place collecting chinaware 2 simultaneously.
In order to enable magnetic field energy pool the very high electromagnetic beam of density, between weldment and coil, adding a kind of parts being called collection chinaware, enhance the magnetic energy density of welding position, improve welding effect.This collection chinaware adopts heat resistant copper alloy to make, and as shown in the figure, shown collection chinaware main body be column, and its two ends to medial recess, and have one along its axially setting and run through the through hole at main body two ends.Wherein, collection chinaware length (must be longer than coil), the length of through hole is required poly-magnetic width (that is weld width), collection Ci device external diameter (being about less than coil endoporus), collection Ci device endoporus (being about greater than weldment external diameter).
Collection chinaware also known as electromagnetic flux field concentrator, be realize electromagnetic pulse welding main frock, it have magnetic flux converge or move to collection chinaware inner hole wall and outer excircle of workpiece between gap in effect.Collection chinaware can change the distribution of magnetic track by changing inner wall shape, some space magnetic field is strengthened, the field weakening in other spaces, reach the object of adjustment welding position.By changing collection chinaware appearance and size and controlled discharge energy, can the pipe fitting of welding of different materials and wall thickness.
Make collection chinaware easier than coil processed, cost is lower.Same conductive coil 1 changes different collection chinawares, just can process the pipe of different size, this is more conducive to batch production.Collection chinaware, for extension coil service life, controls the weld shape of workpiece, is conducive to flexibility when improving electromagnetic pulse welding processing.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. copper pipe and a device for welding aluminium pipe plumb joint in refrigeration plant, is characterized in that: conductive coil, collection chinaware, input end plate, output end plate, collection chinaware location top board and interior pipe positioning sleeve;
Described conductive coil comprises 3 groups of coil-conductors, the two ends of described coil-conductor respectively with input end plate with export end plate and be connected, insulating barrier is provided with between adjacent two circle coil-conductors, be respectively arranged with an end insulation support plate in the outside of input end plate and output end plate, both ends insulation support plate is connected as a whole by insulation connecting bolt; Input end plate is respectively used to be connected with the both positive and negative polarity of the signal output part of impulse generator with output end plate;
Described collection chinaware is positioned at conductive coil and leads to axial line with conductive coil, a collection chinaware location plug is respectively equipped with at the two ends of collection chinaware, described collection chinaware location plug and collection chinaware coaxial inner conductor, the side that described collection chinaware location top board and interior pipe locating clamp plate utilize lock-screw to be separately fixed at both ends insulation support plate to deviate from mutually, thus collection chinaware location plug is pushed down, to lock the axial location of collection chinaware;
The middle part of described collection chinaware plug axially offers a through hole along it, the small end of described interior pipe positioning sleeve inserts in the through hole of right side collection chinaware plug, the outer face of collection chinaware plug is close to by shoulder step, and in the top board axial compression of right side collection chinaware location, the large end face of pipe positioning sleeve is also fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435551.6U CN204094301U (en) | 2014-08-04 | 2014-08-04 | Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435551.6U CN204094301U (en) | 2014-08-04 | 2014-08-04 | Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant |
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|---|---|
| CN204094301U true CN204094301U (en) | 2015-01-14 |
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|---|---|---|---|
| CN201420435551.6U Expired - Fee Related CN204094301U (en) | 2014-08-04 | 2014-08-04 | Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant |
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| CN (1) | CN204094301U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3124161A1 (en) | 2015-07-23 | 2017-02-01 | Airbus Helicopters | Mechanical link member for magnetic pulse welding to a tube, and method of manufacturing such a mechanical link member |
| CN108581178A (en) * | 2018-06-06 | 2018-09-28 | 上海工程技术大学 | The floating type double static shaft shoulder agitating friction welderings of one kind, which connect, uses stirring-head |
| CN109420826A (en) * | 2017-08-28 | 2019-03-05 | 天津市彬拓科技有限公司 | Fixed point welding system suitable for the welding of agricultural cutter hard material |
| CN114505574A (en) * | 2022-04-08 | 2022-05-17 | 重庆科技学院 | Electromagnetic pulse welding device with smooth welding seam |
-
2014
- 2014-08-04 CN CN201420435551.6U patent/CN204094301U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3124161A1 (en) | 2015-07-23 | 2017-02-01 | Airbus Helicopters | Mechanical link member for magnetic pulse welding to a tube, and method of manufacturing such a mechanical link member |
| CN109420826A (en) * | 2017-08-28 | 2019-03-05 | 天津市彬拓科技有限公司 | Fixed point welding system suitable for the welding of agricultural cutter hard material |
| CN108581178A (en) * | 2018-06-06 | 2018-09-28 | 上海工程技术大学 | The floating type double static shaft shoulder agitating friction welderings of one kind, which connect, uses stirring-head |
| CN108581178B (en) * | 2018-06-06 | 2023-11-24 | 上海工程技术大学 | Floating type stirring head for friction stir welding with double stationary shaft shoulders |
| CN114505574A (en) * | 2022-04-08 | 2022-05-17 | 重庆科技学院 | Electromagnetic pulse welding device with smooth welding seam |
| CN114505574B (en) * | 2022-04-08 | 2023-06-06 | 重庆科技学院 | Electromagnetic pulse welding device with smooth welding seam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150804 |
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| EXPY | Termination of patent right or utility model |