CN205218314U - Medicine core of taking protection film strip of brazing - Google Patents
Medicine core of taking protection film strip of brazing Download PDFInfo
- Publication number
- CN205218314U CN205218314U CN201520746953.2U CN201520746953U CN205218314U CN 205218314 U CN205218314 U CN 205218314U CN 201520746953 U CN201520746953 U CN 201520746953U CN 205218314 U CN205218314 U CN 205218314U
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- China
- Prior art keywords
- medicine core
- brazing
- protection film
- filler metal
- brazing filler
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Abstract
The utility model discloses a medicine core of taking protection film strip of brazing, be in including medicine core and cladding the body of brazing that the outer brazing filler metal crust of medicine core constitutes the braze sealed protection film that is stained with 0.001~0.15mm of thickness of surface of a body. The utility model has the advantages of seam medicine core braze a moisture absorption and surface oxidation can effectively have been avoided to the sealed protection film of adhesion on its surface, save the cost, and the energy saving has improved the welding quality of soldered joint, the protection film adopt with the mixture of brazing filler metal crust assorted borer agent with the gluing curing agent, reducible by the brazing filler metal alloy crust of oxidation during the welding, still be favorable to the moist of brazing filler metal to be sprawled to a certain extent.
Description
Technical field
The utility model relates to welding rod, especially relates to a kind of medicine core soldering bar that can prevent the band diaphragm of brazing filler metal alloy surface oxidation and the inner moisture absorption.
Background technology
Medicine core soldering bar can be divided into seamless medicine core soldering bar and seamed soldering bar.Seamless soldering bar has good humidity resistance, but preparation method is complicated, and cost is higher; Seamed medicine core soldering bar is that brazing filler metal alloy band is made through operations such as multiple tracks rolling, powder feeding, drawing, alignments, and its gap formed is between 0.01 ~ 0.1mm.Brazing flux medicine core is generally that after being dried by brazing flux, grinding, mix, be filled in brazing filler metal alloy inside through compacting, medicine core brazing flux is easily by the gap moisture absorption, and brazing filler metal alloy surface is also easily oxidized simultaneously.
Easily lost efficacy after the medicine core brazing flux moisture absorption, the seamed medicine core soldering bar of the moisture absorption in use also easily makes soldered fitting produce gas hole defect, and the seamed medicine core soldering bar of surface oxidation easily makes soldered fitting produce the defects such as slag inclusion.If the seamed medicine core soldering bar after the moisture absorption is dried, then need to add special drying plant, not only occupied ground but also the electric energy needing consumption more; Vacuum packaging seamed medicine core soldering bar can avoid medicine core soldering bar to deposit the moisture absorption in process and surface oxidation, but storage cost is higher.
Summary of the invention
The purpose of this utility model is the defect existed for above-mentioned prior art and a kind of medicine core soldering bar with diaphragm provided.
For achieving the above object, the utility model can take following technical proposals:
The medicine core soldering bar of band diaphragm described in the utility model; comprise medicine core and be coated on the soldering bar body that solder crust outside described medicine core forms, have the closed protective film of thickness 0.001 ~ 0.15mm at the outer surface of described soldering bar body and two ends seal adhesion.
The utility model has the advantage of that seal adhesion diaphragm on its outer surface effectively can avoid the seamed medicine core soldering bar moisture absorption and surface oxidation, save cost, economize energy, improves the welding quality of soldered fitting; Diaphragm adopts the mixture of brazing flux and the gluing curing agent matched with solder crust, and during welding, reducible oxidized brazing filler metal alloy crust, also helps the moistening of solder to a certain extent and sprawl.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Detailed description of the invention
As shown in Figure 1-2; the medicine core soldering bar of band diaphragm described in the utility model; comprise medicine core 1 and be coated on the soldering bar body of brazing filler metal alloy crust 2 formation outside medicine core; this brazing filler metal alloy crust 2 can be silver-base solder, copper base solder, aluminium base solder, zinc-based solder etc.; at the diaphragm 3 that outer surface (comprising the two ends of the soldering bar) seal adhesion of soldering bar body has the brazing flux matched with brazing filler metal alloy crust to mix with gluing curing agent, the thickness of diaphragm 3 is 0.001 ~ 0.15mm.
During preparation; strip brazing material alloy is through multiple tracks rolling; after the operations such as powder feeding (medicine core), drawing, alignment; make the seamed medicine core soldering bar of certain length; then by brazing flux and the dip-coating of gluing curing agent mixture in the outside (two ends and outer peripheral face) of medicine core soldering bar, be formed with certain thickness closed protective film 3.When finished medicines core soldering bar stores, due to the sealing function of diaphragm 3, can effectively prevent brazing filler metal alloy crust 2 oxidation and by the gap moisture absorption; without the need to vacuum packaging; ensure that the storage quality of finished medicines core soldering bar, reduce storage cost, improve the welding quality of soldered fitting.
Claims (1)
1. the medicine core soldering bar with diaphragm; comprise medicine core (1) and be coated on the soldering bar body that the solder crust (2) outside described medicine core forms, it is characterized in that: the closed protective film (3) having thickness 0.001 ~ 0.15mm at the outer surface of described soldering bar body and two ends seal adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746953.2U CN205218314U (en) | 2015-09-25 | 2015-09-25 | Medicine core of taking protection film strip of brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746953.2U CN205218314U (en) | 2015-09-25 | 2015-09-25 | Medicine core of taking protection film strip of brazing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205218314U true CN205218314U (en) | 2016-05-11 |
Family
ID=55893408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746953.2U Active CN205218314U (en) | 2015-09-25 | 2015-09-25 | Medicine core of taking protection film strip of brazing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205218314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271226A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of brazing flux bonding system, solder coating composition and flux coated brazingrod |
| CN106271203A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of flux coated brazingrod and preparation method thereof |
-
2015
- 2015-09-25 CN CN201520746953.2U patent/CN205218314U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271226A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of brazing flux bonding system, solder coating composition and flux coated brazingrod |
| CN106271203A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of flux coated brazingrod and preparation method thereof |
| CN106271226B (en) * | 2016-08-31 | 2018-11-16 | 郑州机械研究所有限公司 | A kind of flux coated brazingrod |
| CN106271203B (en) * | 2016-08-31 | 2018-12-18 | 郑州机械研究所有限公司 | A kind of flux coated brazingrod and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450001 science avenue of Zhengzhou high tech Industrial Development Zone, Zhengzhou, Henan Province, No. Patentee after: Zhengzhou Machinery Research Institute Co., Ltd. Address before: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou city 450001 Street No. 10 Patentee before: Zhengzhou Research Institute of Mechanical Engineering |
|
| CP03 | Change of name, title or address |