CN214350372U - Brazed red copper radiator - Google Patents
Brazed red copper radiator Download PDFInfo
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- CN214350372U CN214350372U CN202120297692.6U CN202120297692U CN214350372U CN 214350372 U CN214350372 U CN 214350372U CN 202120297692 U CN202120297692 U CN 202120297692U CN 214350372 U CN214350372 U CN 214350372U
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Abstract
The utility model relates to a red copper radiator and a radiator thereof after brazing, which comprises a radiator main body and a welding pipe; the radiator main body comprises a cover plate, a base body and a brazing filler metal layer, wherein the brazing filler metal layer is arranged between the base body and the cover plate; the welding pipe comprises a copper pipe and a stainless steel pipe, one end of the copper pipe is fixed with the base body through argon arc welding, and the other end of the copper pipe is fixed with the stainless steel pipe through flame brazing; the one end that copper pipe and nonrust steel pipe are connected is equipped with and supplies nonrust steel pipe male layer platform, and this scheme has and removes the risk of leaking from, has solved the conflict of brazing of copper that experiences when red copper radiator is made and the flame brazing that the nonrust steel pipe of secondary welding needs.
Description
Technical Field
The utility model relates to a red copper radiator technical field, concretely relates to red copper radiator through brazing.
Background
The red copper radiator is widely used in high-power equipment due to good heat dissipation performance of red copper as a base material, the existing red copper radiator is mainly formed by welding a cover plate and a base plate together in a vacuum brazing mode, the cover plate, the base plate and brazing filler metal which are not fixedly connected are overlapped and heated to be molten by the brazing filler metal in a vacuum environment, and welding among parts is realized by utilizing wetting, spreading and mutual dissolution and diffusion of the liquid brazing filler metal on the surface of a base material and wetting, capillary flow, gap filling and mutual dissolution and diffusion of the base material in gaps of the base material. The brazed red copper radiator can realize the circulation of fluid in the red copper radiator only by welding metal pipes, and the metal pipes welded on the red copper radiator are mainly selected from copper pipes and stainless steel pipes at present, but the two metal pipes are not good in use effect after being welded.
Because the copper pipe and the red copper radiator belong to the same material welding, the argon arc welding or the arc welding and other lower temperature welding are used, only the red copper radiator needs to be locally heated, the heating temperature is 600-, under the condition, a brazing filler metal layer formed by the brazing filler metal is melted when the red copper radiator is subjected to vacuum brazing, the cover plate floats compared with the base plate, the stainless steel pipe is welded and cooled, and then the risk of water leakage is caused, so that the adverse effect that the defective rate of products welded by the red copper radiator and the stainless steel pipe is extremely high is caused.
In view of the above, there is a need for a brazed red copper heat sink that can avoid water leakage and improve yield.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a brazed red copper radiator to the above-mentioned problem that exists among the prior art.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a brazed red copper radiator comprises a radiator main body and a welding pipe; the radiator main body comprises a cover plate, a base body and a brazing filler metal layer, wherein the brazing filler metal layer is arranged between the base body and the cover plate; the welding pipe comprises a copper pipe and a stainless steel pipe, one end of the copper pipe is fixed with the base body through argon arc welding, and the other end of the copper pipe is fixed with the stainless steel pipe through flame brazing; and one end of the copper pipe connected with the stainless steel pipe is provided with a layer table for inserting the stainless steel pipe.
The method also comprises the following steps:
s100: the stainless steel pipe and the copper pipe are in butt joint connection through flame brazing;
s200: welding the other end of the copper pipe and the red copper radiator matrix through argon arc welding, wherein the welding temperature is 600-800 ℃;
s300: and connecting the other end of the stainless steel pipe with a stainless steel cutting sleeve.
The working principle and the beneficial effects are as follows: 1. firstly, the stainless steel pipe and the copper pipe are subjected to flame brazing butt joint independently, so that the problem of damage to a brazing filler metal layer of a red copper radiator matrix can be completely avoided;
2. because the copper pipe and the red copper radiator base body are made of the same material, the welding temperature is controlled to be 600-800 ℃ through argon arc welding, and is far lower than the melting temperature of a brazing filler metal layer on the brazed red copper radiator base body by 900-1000 ℃, so that the brazing filler metal layer cannot be damaged;
3. because the stainless steel has lower hardness and better plasticity before heat treatment, the clamping sleeve is arranged for interference sealing fit, so that good sealing property can be ensured, and the risk of water leakage is obviously reduced;
4. through the steps, the yield of the red copper radiator is obviously improved, and the water leakage risk is reduced.
5. The stainless steel pipe is inserted into the limit through the layer table, so that the stainless steel pipe and the copper pipe can be conveniently welded, and the stainless steel pipe is firmer after being welded.
Furthermore, the solder for flame brazing is silver brazing bar and silver soldering flux. With the arrangement, the welding effect can be obviously improved through the welding flux.
Furthermore, the argon arc welding solder is a copper welding wire. With the arrangement, the welding effect can be obviously improved through the welding flux.
Further, the layer platform is arranged in interference fit with the stainless steel pipe. Through earlier stainless steel pipe and copper pipe interference fit to avoid stainless steel pipe or copper pipe to take place the skew and lead to the phenomenon emergence of welding effect variation even failure in welding process.
Furthermore, at least a welding groove for solder to enter is formed between the layer platform and the outer wall of the stainless steel tube, and the welding groove is arranged in an open shape. According to the arrangement, the welding flux is continuously added in the welding groove during welding, so that the welding flux can be reduced to drip on the ground, the waste of the welding flux is reduced, and the welding effect is also improved.
Furthermore, a thread section matched with the stainless steel pipe is arranged in the layer table, and the welding groove is located on the outer side of the thread section. This setting through layer platform and screw thread section screw-thread fit, can make nonrust steel pipe and copper pipe fixed earlier before the welding to convenient welding, its screw-thread fit can to a great extent improve sealed effect.
Further, still be equipped with the seal cover outside the layer platform, the seal cover includes the spiro union section with layer platform outer wall spiro union, with layer platform terminal surface complex dodge the terminal surface and with the sealed section of the inseparable laminating of stainless steel outer wall. This setting, through install extra seal cover again after welding is accomplished and the cooling, can further guarantee the sealing performance of nonrust steel pipe and copper pipe, especially avoid because the problem of leaking that the welding is bad leads to takes place, wherein dodge the position that the terminal surface can dodge not parallel and level such as crater better, and the seal section can be well with nonrust steel pipe outer wall seal cooperation, and can slide on nonrust steel pipe under the exogenic action, makes things convenient for the installation of seal cover. Wherein the sealing sleeve may be made of common stainless steel.
Furthermore, a high-temperature-resistant sealing ring is arranged in the sealing section. The setting adopts common perfluoro-ether rubber and the like, can bear high temperature of more than 300 ℃, has good chemical medium resistance, and can be well suitable for long-term high-temperature environment.
Furthermore, a gap of 0.5-1 mm is arranged between the avoiding end face and the layer platform end face. This setting can dodge the crater well, also can remove steps such as polishing after the welding from, need not to polish and also influence the installation of seal cover.
Furthermore, be equipped with a plurality of regulations nails that compress tightly on the seal segment, every compress tightly the regulation nail all with high temperature resistant sealing washer butt, through rotatory compress tightly the regulation nail and adjust and keep away from or be close to high temperature resistant sealing washer.
Furthermore, an avoiding groove is formed in the outer wall of the layer platform and is located at one end, close to the sealing sleeve, of the layer platform. This setting, dodges the groove and reduces the scar that forms after the welding etc. and cause the damage to the screw thread part, guarantees that the seal cover can seal the cooperation better with the layer platform, preferably polishes dodging the trench position after the welding, eliminates the scar, polishes this moment and also can not cause the damage to the screw thread.
Further, the width of the avoiding groove is at least 1/4 of the bolt connection section in the sealing sleeve. With this arrangement, the portion left with the foot 3/4 can still maintain a good thread fit, while the width of the portion of the groove is sufficient for avoiding the crater.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the welding of the stainless steel tube and the copper tube according to the present invention;
FIG. 3 is a schematic view of the processing flow of the present invention;
figure 4 is the seal cartridge installation schematic of the present invention.
In the figure, 1, stainless steel tube; 2. a copper pipe; 3. a red copper radiator base; 4. a brazing filler metal layer; 5. a cover plate; 6. a layer platform; 7. welding a groove; 8. a threaded segment; 9. sealing sleeves; 91. a screw joint section; 92. avoiding the end face; 93. a sealing section; 10. a high temperature resistant seal ring; 11. pressing the adjusting nail; 12. avoiding the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting.
The red copper radiator generally comprises a cover plate 5, a base body and a solder layer 4, wherein the solder layer 4 is formed by the following steps: the brazing filler metal is melted in high-temperature brazing, the liquid brazing filler metal is wetted and spread on the surface of the base metal, mutually dissolves and diffuses with the base metal and is wetted, flows in a capillary manner, joints are filled, mutually dissolves and diffuses with the base metal in a gap between the base metal, welding between the cover plate 5 and the base body is realized, after the liquid brazing filler metal is cooled to normal temperature, the liquid brazing filler metal and the base metal are combined in a crystal phase mode to form a brazing filler metal layer 4, and the brazing filler metal layer 4 is partially remelted when the temperature is increased to 900-1000 ℃, so that welding is damaged.
As shown in fig. 1 to 3, the brazed red copper radiator comprises a radiator main body and a welded pipe; the radiator main body comprises a cover plate 5, a base body and a brazing filler metal layer 4, wherein the brazing filler metal layer 4 is arranged between the base body and the cover plate 5; the welding pipe comprises a copper pipe 2 and a stainless steel pipe 1, one end of the copper pipe 2 is fixed with the base body through argon arc welding, and the other end of the copper pipe is fixed with the stainless steel pipe 1 through flame brazing; one end of the copper pipe 2 connected with the stainless steel pipe 1 is provided with a layer table 6 for inserting the stainless steel pipe 1.
The method also comprises the following processing steps:
s100: the stainless steel pipe 1 and the copper pipe 2 are in butt joint connection through flame brazing, the welding temperature is 1000-1300 ℃, and the welding flux is silver brazing bars and silver soldering flux; or type 46 solder bars and type 46 soldering flux; the stainless steel tube 1 and the copper tube 2 are firstly and independently subjected to flame brazing butt joint, so that the problem of damage to the brazing filler metal layer 4 of the red copper radiator matrix 3 can be completely avoided.
S200: welding the other end of the copper pipe 2 and the red copper radiator base body 3 through argon arc welding, wherein the welding temperature is 600-800 ℃, and the welding flux is a copper welding wire; because the copper pipe 2 and the red copper radiator base body 3 are made of the same material, the welding temperature is controlled to be 600-800 ℃ through argon arc welding, and is far lower than the melting temperature of a brazing filler metal layer 4 on the brazed red copper radiator base body 3, which is 900-1000 ℃, so that the brazing filler metal layer 4 cannot be damaged.
S300: and connecting the other end of the stainless steel tube 1 with a stainless steel cutting sleeve. Because the stainless steel hardness is lower and the plasticity is better before the heat treatment, consequently carry out interference seal fit through installing the cutting ferrule, can guarantee good leakproofness to show the risk that reduces to leak.
Specifically, at least a welding groove 7 for the solder to enter is formed between the layer table 6 and the outer wall of the stainless steel pipe 1, and the welding groove 7 is arranged in an open shape. According to the arrangement, the welding flux is continuously added in the welding groove 7 during welding, so that the welding flux can be reduced to drip on the ground, the waste of the welding flux is reduced, and the welding effect is improved.
Specifically, a thread section 8 matched with the stainless steel pipe 1 is arranged in the layer table 6, and the welding groove 7 is positioned on the outer side of the thread section 8. This setting, through layer platform 6 and 8 screw-thread fits of screw thread section, can make stainless steel pipe 1 earlier fixed with copper pipe 2 before the welding to convenient welding, its screw-thread fit can to a great extent improve sealed effect.
Referring to fig. 4, specifically, a sealing sleeve 9 is further disposed outside the layer 6, and the sealing sleeve 9 includes a screw joint section 91 screwed with the outer wall of the layer 6, an avoiding end face 92 matched with the end face of the layer 6, and a sealing section 93 tightly attached to the outer wall of the stainless steel tube 1. This setting, through installing extra seal cover 9 again after welding is accomplished and the cooling, can further guarantee the sealing performance of nonrust steel pipe 1 and copper pipe 2, especially avoid because the problem of leaking that the welding is bad leads to takes place, wherein dodge terminal surface 92 can dodge the position of the not parallel and level such as scar better, and sealing section 93 can be well with the sealed cooperation of nonrust steel pipe 1 outer wall, and can slide on nonrust steel pipe 1 under the exogenic action, makes things convenient for the installation of seal cover 9. Wherein the sealing sleeve 9 may be made of common stainless steel.
Specifically, a high temperature resistant seal ring 10 is provided in the seal section 93. The setting adopts common perfluoro-ether rubber and the like, can bear high temperature of more than 300 ℃, has good chemical medium resistance, and can be well suitable for long-term high-temperature environment.
Specifically, a gap of 0.5-1 mm is arranged between the avoiding end face 92 and the end face of the layer platform 6. This setting can dodge the crater well, also can remove steps such as polishing after the welding from, need not to polish and also influence the installation of seal cover 9.
Specifically, be equipped with a plurality of regulating screw 11 that compress tightly on seal section 93, every compresses tightly regulating screw 11 and all with high temperature resistant sealing washer 10 butt, compresses tightly regulating screw 11 through the rotation and adjusts and keep away from or be close to high temperature resistant sealing washer 10.
Specifically, an avoiding groove 12 is formed in the outer wall of the layer platform 6, and the avoiding groove 12 is located at one end, close to the sealing sleeve 9, of the layer platform 6. This setting, dodge groove 12 and reduce the scar that forms after the welding etc. and cause the damage to the screw thread part, guarantee that seal cover 9 can seal the cooperation better with layer platform 6, preferably polish dodging groove 12 position after the welding, eliminate the scar, polish this moment and also can not cause the damage to the screw thread.
Specifically, the width of the bypass groove 12 is at least 1/4 of the bolt segment 91 in the sealing sleeve 9. With this arrangement, the portion left with the foot 3/4 can still maintain a good thread fit, while the portion of the relief groove 12 is wide enough to avoid craters.
The part of the utility model which is not described in detail is the prior art, so the utility model does not detail the part.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Although the terms stainless steel tube 1, copper tube 2, red copper radiator base 3, brazing filler metal layer 4, cover plate 5, layer table 6, welding groove 7, threaded section 8, sealing sleeve 9, threaded section 91, avoiding end face 92, sealing section 93, high temperature-resistant sealing ring 10, pressing adjusting nail 11, avoiding groove 12, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (10)
1. The brazed red copper radiator is characterized by comprising a radiator main body and a welding pipe; the radiator main body comprises a cover plate, a base body and a brazing filler metal layer, wherein the brazing filler metal layer is arranged between the base body and the cover plate; the welding pipe comprises a copper pipe and a stainless steel pipe, one end of the copper pipe is fixed with the base body through argon arc welding, and the other end of the copper pipe is fixed with the stainless steel pipe through flame brazing; and one end of the copper pipe connected with the stainless steel pipe is provided with a layer table for inserting the stainless steel pipe.
2. The brazed red copper heat sink according to claim 1, wherein the layer table is arranged in an interference fit with the stainless steel tube.
3. The brazed red copper heat sink according to claim 2, wherein at least a soldering groove for solder is formed between the layer table and the outer wall of the stainless steel tube, and the soldering groove is open.
4. The brazed red copper heat sink according to claim 3, wherein the layer has a threaded section for engaging with the stainless steel tube, and the welding groove is located outside the threaded section.
5. The brazed red copper radiator according to claim 4, wherein a sealing sleeve is further provided outside the layer table, and the sealing sleeve comprises a threaded section in threaded connection with the outer wall of the layer table, an avoiding end face matched with the end face of the layer table, and a sealing section tightly attached to the outer wall of the stainless steel tube.
6. The brazed red copper heat sink according to claim 5, wherein a high temperature resistant seal ring is provided in the sealing section.
7. The brazed red copper radiator according to claim 5, wherein a gap of 0.5-1 mm is provided between the relief end face and the abutment end face.
8. The brazed red copper radiator according to claim 6, wherein a plurality of compression adjusting nails are arranged on the sealing section, each compression adjusting nail is abutted against the high-temperature-resistant sealing ring, and the compression adjusting nails are rotated to adjust the compression adjusting nails to be far away from or close to the high-temperature-resistant sealing ring.
9. The brazed red copper radiator according to any one of claims 5 to 8, wherein the outer wall of the lamination is provided with an avoiding groove, and the avoiding groove is positioned at one end of the lamination close to the sealing sleeve.
10. The brazed red copper heat sink according to claim 9, wherein the relief groove has a width of at least 1/4 of the threaded section of the sealing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120297692.6U CN214350372U (en) | 2021-02-02 | 2021-02-02 | Brazed red copper radiator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120297692.6U CN214350372U (en) | 2021-02-02 | 2021-02-02 | Brazed red copper radiator |
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| CN214350372U true CN214350372U (en) | 2021-10-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN115069825A (en) * | 2022-07-08 | 2022-09-20 | 黎浩知 | Flame heating plate for component leveling and flame leveling method |
-
2021
- 2021-02-02 CN CN202120297692.6U patent/CN214350372U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN114083240B (en) * | 2021-11-29 | 2024-03-01 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN115069825A (en) * | 2022-07-08 | 2022-09-20 | 黎浩知 | Flame heating plate for component leveling and flame leveling method |
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Address after: No. 55, Gaoxin 9th Road, Qiaonan Block, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Xiangbo heat transfer technology Co.,Ltd. Address before: 310000 room 702, building 3, No. 371, Mingxing Road, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: XENBO (HANGZHOU) HEAT TRANSFER SCIENCE & TECHNOLOGY CO.,LTD. |