CN103042285B - Oxygen-free copper and stainless steel body vacuum welding method - Google Patents
Oxygen-free copper and stainless steel body vacuum welding method Download PDFInfo
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- CN103042285B CN103042285B CN201210596248.XA CN201210596248A CN103042285B CN 103042285 B CN103042285 B CN 103042285B CN 201210596248 A CN201210596248 A CN 201210596248A CN 103042285 B CN103042285 B CN 103042285B
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Abstract
The invention discloses a kind of oxygen-free copper and stainless steel body vacuum welding method, stack two annular welding rods respectively at the annular retaining ring Internal and external cycle place of oxygen-free copper, annular welding rod contacts with annular sealing cover; The solder side of annular sealing cover scribbles liquid soldering flux; Annular sealing cover is engaged on stainless steel body; Annular sealing cover and stainless steel bulk junction zoarium are locked; Then annular sealing cover and stainless steel bulk junction zoarium are inverted in vacuum drying oven, and temperature is set as 880 °-940 °, continue to take out after 3-5 hour.Therefore, after adopting the method welding of the present invention's design, can ensure that oxygen-free copper weld rear internal links firmly with stainless steel body, appearance without any welding rod residue, be unlikely to affect the later stage and miscellaneous part assembles.
Description
Technical field
The present invention relates to a kind of oxygen-free copper and stainless steel body vacuum welding method.
Background technology
When prior art welding oxygen-free copper and stainless steel body, such as dome class oxygen-free copper and valve seat class stainless steel body, dome oxygen-free copper comprises annular sealing cover and annular retaining ring, annular retaining ring is vertically fixed on on seal cover, dome oxygen-free copper is enclosed within after on valve seat class stainless steel body, and annular sealing cover needs to weld with stainless steel body.
On the gap at direct faying face place welding rod being placed on oxygen-free copper and stainless steel body at present, namely be placed on oxygen-free copper top surface edge place, then through high temperature, welding rod fusing being flowed into oxygen-free copper is combined in the gap formed with stainless steel body, because welding rod flow direction inequality has caused pore, this quadrat method easily makes the overall sealing performance after welding poor, simultaneously overall in gap place appearance, have the welding rod residue partly do not flowed in gap, also affect attractive in appearance while the normal assembling of impact, do not pass a test to people's perceptual quality, affect production marketing.
Summary of the invention
Technical problem to be solved by this invention is: after providing one can guarantee that oxygen-free copper welds with stainless steel body, faying face good seal performance, and appearance is without the oxygen-free copper of welding rod residue and stainless steel body vacuum welding method.
The technical solution used in the present invention is: a kind of oxygen-free copper and stainless steel body vacuum welding method, comprise the steps,
Step one, stack two annular welding rods respectively at the annular retaining ring Internal and external cycle place of oxygen-free copper, annular welding rod contacts with annular sealing cover;
Step 2, the solder side of annular sealing cover scribbles liquid soldering flux;
Step 3, is engaged in the annular sealing cover in step one on stainless steel body;
Step 4, locks the annular sealing cover at step 3 place and stainless steel bulk junction zoarium;
Step 5, be inverted in vacuum drying oven by the annular sealing cover in step 4 and stainless steel bulk junction zoarium, temperature is set as 880 DEG C-940 DEG C, continues to take out after 3-5 hour.
In step one, annular welding rod is bonded at ring packing through glue and covers, and annular welding rod diameter of section is 0.6mm-0.8mm.
In step 4, annular sealing cover and stainless steel body both sides are respectively equipped with secondary antiseized cover and a backing plate, through bolt and nut locking.
Described antiseized cover is ceramic jacket.
The invention has the beneficial effects as follows: a kind of oxygen-free copper of the present invention and stainless steel body vacuum welding method, annular welding rod is enclosed within oxygen-free copper annular retaining ring Internal and external cycle place, after stainless steel body fits, inversion is put in high temperature in vacuum drying oven and annular welding rod is melted, owing to placing after oxygen-free copper and stainless steel body fits, the benefit done like this is after the fusing of annular welding rod, and liquid, directly at oxygen-free copper and stainless steel body slit place, realizes effectively welding; In addition, cover scribble liquid soldering flux in the ring packing of oxygen-free copper, after annular welding rod can be made to melt, liquid is walked along the position of coated liquid soldering flux, can not flow to outside ring packing ring cowling.Therefore, after adopting the method welding of the present invention's design, can ensure that oxygen-free copper weld rear internal links firmly with stainless steel body, appearance without any welding rod residue, be unlikely to affect the later stage and miscellaneous part assembles.
Detailed description of the invention
Be below present pre-ferred embodiments, but therefore do not limit protection scope of the present invention.
A kind of oxygen-free copper of the present invention and stainless steel body vacuum welding method, comprise the steps,
A kind of oxygen-free copper and stainless steel body vacuum welding method, comprise the steps,
Step one, stack two annular welding rods respectively at the annular retaining ring Internal and external cycle place of oxygen-free copper, annular welding rod contacts with annular sealing cover; Namely at the annular welding rod that annular retaining ring overcoat has two to stack, two annular welding rods stacked are embedded with at annular retaining ring.Completely different from prior art herein, when the present invention designs, annular welding rod is placed on inside, and prior art is placed on appearance.
Step 2, the solder side of annular sealing cover scribbles liquid soldering flux; Scribble liquid soldering flux, after annular welding rod can be made to melt, liquid is walked along the position of coated liquid soldering flux, can not flow to outside ring packing ring cowling.
Step 3, is engaged in the annular sealing cover in step one on stainless steel body; Be screwed to position.
Step 4, locks the annular sealing cover at step 3 place and stainless steel bulk junction zoarium; Ensure that oxygen-free copper and stainless steel body slit are tightr, for later stage welding preferably prepares.
Step 5, be inverted in vacuum drying oven by the annular sealing cover in step 4 and stainless steel bulk junction zoarium, temperature is set as 880 DEG C-940 DEG C, continues to take out after 3-5 hour; Very important herein, after annular welding rod fusing after inversion, liquid is all caught by ring packing interior surface, and the connecting portion that ring packing interior surface welds with stainless steel inner body wall just, so just right both are bonded together of annular welding rod after fusing.Put into vacuum drying oven after inversion, temperature from room temperature slowly be heated to design temperature, and then drop to room temperature from design temperature, realize cooling, time and temperature coordinate form a parabolic shape, and after cooling, blow-on obtains welding body.
In step one, annular welding rod is bonded at ring packing through glue and covers, and annular welding rod diameter of section is 0.6mm-0.8mm.
In step 4, annular sealing cover and stainless steel body both sides are respectively equipped with secondary antiseized cover and a backing plate, through bolt and nut locking.Described antiseized cover is ceramic jacket.The effect of antiseized cover avoids oxygen-free copper and stainless steel body and backing plate in a vacuum furnace to bond together, and under the cooperation of screw bolt and nut, the effect of backing plate clamps oxygen-free copper and stainless steel body exactly.Therefore, after adopting the method welding of the present invention's design, can ensure that oxygen-free copper weld rear internal links firmly with stainless steel body, appearance without any welding rod residue, be unlikely to affect the later stage and miscellaneous part assembles.
Claims (4)
1. oxygen-free copper and a stainless steel body vacuum welding method, is characterized in that: comprise the steps,
Step one, stack two annular welding rods respectively at the annular retaining ring Internal and external cycle place of oxygen-free copper, annular welding rod contacts with annular sealing cover;
Step 2, the solder side of annular sealing cover scribbles liquid soldering flux;
Step 3, is engaged in the annular sealing cover in step one on stainless steel body;
Step 4, locks the annular sealing cover at step 3 place and stainless steel bulk junction zoarium;
Step 5, be inverted in vacuum drying oven by the annular sealing cover in step 4 and stainless steel bulk junction zoarium, temperature is set as 880 DEG C-940 DEG C, continues to take out after 3-5 hour.
2. oxygen-free copper according to claim 1 and stainless steel body vacuum welding method, it is characterized in that: in step one, annular welding rod is bonded at ring packing through glue and covers, and annular welding rod diameter of section is 0.6mm-0.8mm.
3. oxygen-free copper according to claim 1 and stainless steel body vacuum welding method, is characterized in that: in step 4, and annular sealing cover and stainless steel body both sides are respectively equipped with secondary antiseized cover and a backing plate, through bolt and nut locking.
4. oxygen-free copper according to claim 3 and stainless steel body vacuum welding method, is characterized in that: described antiseized cover is ceramic jacket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210596248.XA CN103042285B (en) | 2012-12-20 | 2012-12-20 | Oxygen-free copper and stainless steel body vacuum welding method |
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| CN201210596248.XA CN103042285B (en) | 2012-12-20 | 2012-12-20 | Oxygen-free copper and stainless steel body vacuum welding method |
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| CN103042285A CN103042285A (en) | 2013-04-17 |
| CN103042285B true CN103042285B (en) | 2015-08-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104439591A (en) * | 2014-12-03 | 2015-03-25 | 嵊州市新起点焊接科技有限公司 | Connecting component for copper and stainless steel and welding method of connecting component |
| CN111570957A (en) * | 2020-05-20 | 2020-08-25 | 航发优材(镇江)增材制造有限公司 | Brazing method for copper back plate assembly |
| CN111889834B (en) * | 2020-07-06 | 2022-01-14 | 安徽华东光电技术研究所有限公司 | Method for manufacturing high-order mode absorber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200013A (en) * | 2007-12-03 | 2008-06-18 | 中国核动力研究设计院 | Copper and stainless steel dissimilar metal water adapter vacuum brazing technology method |
| CN101279394A (en) * | 2008-05-20 | 2008-10-08 | 陈雪辉 | Method for welding thin wall stainless steel tube and copper pipe piece |
| CN102489813A (en) * | 2011-12-20 | 2012-06-13 | 山东大学 | Vacuum active brazing process of molybdenum-copper alloys and stainless steel |
| CN102528193A (en) * | 2011-12-30 | 2012-07-04 | 刘字冬 | Copper and stainless steel brazing process |
| CN102658443A (en) * | 2012-05-22 | 2012-09-12 | 江苏科技大学 | Brazing filler metal for brazing tungsten-copper alloy and stainless steel and brazing process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2592778B2 (en) * | 1994-03-18 | 1997-03-19 | 川崎重工業株式会社 | Copper alloy lining method |
| JP3034845B2 (en) * | 1997-07-18 | 2000-04-17 | エンドレス ウント ハウザー フローテック アクチエンゲゼルシャフト | Use of silver / copper / palladium hard solder and method of manufacturing composite device |
| JP2009113089A (en) * | 2007-11-07 | 2009-05-28 | Toshiba Corp | Joining material for vacuum valve |
-
2012
- 2012-12-20 CN CN201210596248.XA patent/CN103042285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200013A (en) * | 2007-12-03 | 2008-06-18 | 中国核动力研究设计院 | Copper and stainless steel dissimilar metal water adapter vacuum brazing technology method |
| CN101279394A (en) * | 2008-05-20 | 2008-10-08 | 陈雪辉 | Method for welding thin wall stainless steel tube and copper pipe piece |
| CN102489813A (en) * | 2011-12-20 | 2012-06-13 | 山东大学 | Vacuum active brazing process of molybdenum-copper alloys and stainless steel |
| CN102528193A (en) * | 2011-12-30 | 2012-07-04 | 刘字冬 | Copper and stainless steel brazing process |
| CN102658443A (en) * | 2012-05-22 | 2012-09-12 | 江苏科技大学 | Brazing filler metal for brazing tungsten-copper alloy and stainless steel and brazing process |
Non-Patent Citations (1)
| Title |
|---|
| 铜-低碳钢钎焊接头的耐蚀性评价;赵卫民等;《腐蚀科学与防护技术》;20020930;第14卷(第05期);第296-298页 * |
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