CN205437529U - Be used for brazed spiral brazing filler metal of pipe fitting multilayer suit - Google Patents
Be used for brazed spiral brazing filler metal of pipe fitting multilayer suit Download PDFInfo
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- CN205437529U CN205437529U CN201521074523.7U CN201521074523U CN205437529U CN 205437529 U CN205437529 U CN 205437529U CN 201521074523 U CN201521074523 U CN 201521074523U CN 205437529 U CN205437529 U CN 205437529U
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Abstract
The utility model relates to a be used for brazed spiral brazing filler metal of pipe fitting multilayer suit, the spiral brazing filler metal is the heliciform, spiral brazing filler metal cross section be endocentric two circular, interior circle part, outer loop part are the brazing solder respectively and help the borer agent of welding usefulness. The utility model discloses the two rings who links together has. The spiral double -ring's that two rings constitutes size matches with the size of pipe, straw respectively. The diameter of brazing solder compares for 1 with the external diameter of borer agent: 1.01~1: 2, when the circle was partial including the borer agent, the borer agent was 5%~25% with the mass percent of spiral brazing filler metal for the brazing solder has pertinent proportion with the borer agent, thereby guarantees welding quality. The utility model discloses the structure is succinct, can direct suit on the tubular structure, come moist mother metal surface through the borer agent to be favorable to the brazing solder to be brazed, convenient and practical.
Description
Technical field
This utility model relates to a kind of spiral type solder for pipe fitting multi-deck nested soldering, it is adaptable to ratio-frequency welding and gas brazing etc., can be widely applied in the soldering of multiple industries such as refrigeration, machinery, is mainly used in compressor suction duct soldering and connects.
Background technology
The structure of the suction nozzle soldering of original compressor as it is shown in figure 1, wherein the suction pipe 4 ' of conduit 1 ', conical pipe 3 ' and reservoir be copper material or copper facing part, cost is high.Being connected by soldering processes between conduit 1 ', conical pipe 3 ' and suction pipe 4 ', solder uses low silver or silver-less solder.For reducing cost further, part copper pipe is replaced with steel pipe by compressor producer, and design structure is adjusted, and such as Fig. 2, causes original method for welding cannot meet requirement, therefore the brazing material that the later stage uses is brazing solder.
Brazing solder can be used for steel and is connected with the soldering of steel with steel, copper, excellent performance after welding, but must be equipped with brazing flux when using pyrite soldering steel and steel and use, and solder otherwise will be caused can not to sprawl at mother metal moistened surface, it is impossible to welding.And the coating of brazing flux can increase the operating time, it is unfavorable for the needs of automated production.
There is ledge structure (seeing at Fig. 2 arrow indication) simultaneously on soldered joint, and have two bigger gaps, the collar need to be distinguished for filling gap when using solder ring, further increase soldering time.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency present in prior art, and provides the brazing material welded between the steel of a kind of new construction.
The technical scheme in the invention for solving the above technical problem is:
A kind of spiral type solder for pipe fitting multi-deck nested soldering, is characterized in that described spiral type solder twist, and spiral type solder cross section is concentric two circles, inside and outside circle part respectively brazing solder and the brazing flux helping weldering.
This utility model has two rings linked together.
The size of the spiral type double-round that two rings of this utility model are constituted is sleeved on tubing with conduit, the matching size of suction pipe, beneficially this utility model respectively, convenient and practical.
Brazing flux bowlder outside in spiral type solder described in the utility model, the diameter of described brazing solder and the external diameter of brazing flux are than for 1:1.01～1:2.
Brazing flux in spiral type solder described in the utility model is 5%～25% at interior bowlder, brazing flux with the mass percent of spiral type solder so that brazing solder and brazing flux have appropriate ratio, thus ensure welding quality.
Brazing flux described in the utility model is made up of pyrite brazing flux and binding agent, and pyrite brazing flux is made up of boric acid, Borax, fluoride.
This utility model is simple for structure, can directly be sleeved on tubular structure, moistens mother metal surface by brazing flux, thus beneficially brazing solder soldering, convenient and practical.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of former suction nozzle.
Fig. 2 be this utility model embodiment application to suction nozzle weld time cross sectional representation.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the cross section view of this utility model embodiment 1.
Fig. 5 is this utility model embodiment 2, the cross section view of embodiment 3.
Detailed description of the invention
See Fig. 2～Fig. 5, this utility model embodiment is in the shape of a spiral, its cross section is concentric two circles, the present embodiment has two rings of integrative-structure, the size of the spiral type double-round that two rings are constituted respectively with conduit 3, the matching size of suction pipe 4, be the most just sleeved on two steps between conduit 3, suction pipe 4.
Wherein embodiment 1 inner circular part is divided into brazing solder 1, and outer ring portion is brazing flux 2, and described brazing flux 2 is made up of pyrite brazing flux and binding agent.
In embodiment 1, the external diameter of the diameter of brazing solder 1 and brazing flux 2 is than for 1:1.01～1:2.
This utility model brazing solder 1 in the parcel of brazing flux 2, more consolidation, there is no breakthrough, stable content.In embodiment 2, outer ring portion is brazing solder 1, and inner circular part is divided into brazing flux 2, and brazing flux 2 is in the parcel of solder 1, and brazing flux 2 is distributed more uniform, does not has shortage, and the filling rate (i.e. brazing flux 2 and the mass percent of spiral type solder) of brazing flux 2 is 5%.
In embodiment 3, outer ring portion is brazing solder 1, and inner circular part is divided into brazing flux 2, and brazing flux 2 is in the parcel of brazing solder 1, and brazing flux 2 is distributed more uniform, does not has shortage, and the filling rate (i.e. brazing flux 2 and the mass percent of spiral type solder) of brazing flux 2 is 25%.
Brazing flux 2 in embodiment 2 and embodiment 3 is pyrite brazing flux 2.
Using this utility model can obtain the soldered fitting that joint performance is good, joint surface is smooth, intensity is high, have the advantages such as good mechanical performance.This utility model improves and adds brazing flux while carrying out the operator scheme of soldering, improves production efficiency.Collar technique can be simplified simultaneously after being prepared as spiral type double-round weld-ring, enhance this utility model to conduit 3, the adhesion of suction pipe 4, it is to avoid in brazing process, weld-ring comes off simultaneously.Breach brazing flux painting in conventional brazing and add the step restriction to welding efficiency, reduce brazing temperature to a certain extent simultaneously, reduce the demand that the fusing point between pyrite brazing flux and solder is poor, substantially increase soldering efficiency and quality.
This utility model has the advantage that
1, strength of joint is high, and after using irony or steel mother metal, the intensity of soldering can reach 660MPa, and the intensity of copper mother metal only has 205MPa；
2, the irony of material or the air suction inner pipe of steel and outer tube, and the reservoir bend pipe of irony or steel can be used as housing, greatly reduce the material cost of copper material.Analyzing from the copper valency of the Changjiang river non-ferrous metal net, the price of steel only has the 8% of copper valency；
3, can be changed into steel pipe or iron pipe by copper pipe due to the material of reservoir bend pipe, can reduce the welding procedure route of reservoir, bend pipe can complete with the soldering in continuous tunnel furnace that is connected to of upper shell with lower house with the connection of reservoir housing；
4, compared with the prior art, on the basis of not affecting installation and guaranteeing to connect firm, stable performance, it is not necessary to adding liquid or paste soldering flux, thus cost of labor and material cost are reduced；
5, artificial welding confrontation amount can be reduced during operation and produce de-stabilising effect；
6 compare with existing molectron, copper facing part soldering processes, there is not secondary and freeze and layers of copper comes off uneven hidden danger.
Claims (3)
1. the spiral type solder for pipe fitting multi-deck nested soldering, it is characterized in that described spiral type solder twist, spiral type solder cross section is concentric two circles, it is respectively brazing flux and brazing solder, described spiral type solder has two rings linked together, the size of the spiral type double-round that two rings are constituted respectively with conduit, the matching size of suction pipe.
Spiral type solder the most according to claim 1, is characterized in that: the brazing flux bowlder outside in described spiral type solder, and the diameter of described brazing solder and the external diameter of brazing flux are than for 1:1.01～1:2.
Spiral type solder the most according to claim 1, is characterized in that: the brazing flux in described spiral type solder is 5%～25% at interior bowlder, brazing flux with the mass percent of spiral type solder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074523.7U CN205437529U (en) | 2015-12-22 | 2015-12-22 | Be used for brazed spiral brazing filler metal of pipe fitting multilayer suit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074523.7U CN205437529U (en) | 2015-12-22 | 2015-12-22 | Be used for brazed spiral brazing filler metal of pipe fitting multilayer suit |
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| CN205437529U true CN205437529U (en) | 2016-08-10 |
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| CN201521074523.7U Active CN205437529U (en) | 2015-12-22 | 2015-12-22 | Be used for brazed spiral brazing filler metal of pipe fitting multilayer suit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309570A (en) * | 2017-08-11 | 2017-11-03 | 南通豪泰焊材有限公司 | A kind of spiral welding rod and its clamping welding gun |
| CN108213761A (en) * | 2017-12-29 | 2018-06-29 | 郑州机械研究所有限公司 | A kind of included brazing flux spiral state composite soldering cake and preparation method thereof |
| CN108274146A (en) * | 2017-12-29 | 2018-07-13 | 郑州机械研究所有限公司 | A kind of circle medicine core solder cake and preparation method thereof |
-
2015
- 2015-12-22 CN CN201521074523.7U patent/CN205437529U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309570A (en) * | 2017-08-11 | 2017-11-03 | 南通豪泰焊材有限公司 | A kind of spiral welding rod and its clamping welding gun |
| CN108213761A (en) * | 2017-12-29 | 2018-06-29 | 郑州机械研究所有限公司 | A kind of included brazing flux spiral state composite soldering cake and preparation method thereof |
| CN108274146A (en) * | 2017-12-29 | 2018-07-13 | 郑州机械研究所有限公司 | A kind of circle medicine core solder cake and preparation method thereof |
| CN108274146B (en) * | 2017-12-29 | 2020-02-14 | 郑州机械研究所有限公司 | Round flux-cored brazing filler metal cake and preparation method thereof |
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