CN112902729A

CN112902729A - Industrial cooling copper backplate

Info

Publication number: CN112902729A
Application number: CN202110230775.8A
Authority: CN
Inventors: 松本光裕
Original assignee: Keihin Lemeng Metal Technology Suzhou Co ltd
Current assignee: Keihin Lemeng Metal Technology Suzhou Co ltd; Keihin Ramtech Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-06-04

Abstract

The invention discloses an industrial cooling copper back plate which comprises a back plate body, a cover plate and at least one step groove arranged on the back plate body and extending along a certain direction, wherein a first-class welding area is arranged on the outer side of the cover plate corresponding to the end part of the step groove in the extending direction, one end of the first-class welding area covers the end part of the corresponding cover plate, and the other end of the first-class welding area is far away from the corresponding cover plate and is positioned on the back plate body. The utility model provides an above-mentioned cooling copper backplate is owing to be provided with first type of butt fusion district for being connected between the apron that is located the extending direction tip on the ladder groove and the backplate body is more firm, and the leakproofness is better. The defects of cracking and the like are not easy to occur in the long-term use process. Thereby effectively guaranteed the leakproofness of ladder groove for the cooling water can be in the good operation of ladder inslot, thereby can guarantee the long-term stable better cooling effect of keeping of cooling copper backplate.

Description

Industrial cooling copper backplate

Technical Field

The invention relates to the field of manufacturing of copper back plates for cooling, in particular to an industrial cooling copper back plate.

Background

The copper back plate for cooling is widely applied to industry and has a very high-efficiency cooling function. For example, when working in a vacuum chamber for manufacturing liquid crystal, the sputtering target generates a large amount of heat, and the quality and performance of film formation are affected if the sputtering target is not cooled, so that the sputtering target needs to be cooled by using a cooling back plate when manufacturing liquid crystal. And in the field of new energy automobiles, the battery of the new energy automobile is cooled by using the cooling back plate. The cooling back plate mainly comprises the following structures: the plate made of nonferrous metal (copper or copper alloy or aluminum alloy and the like) is internally provided with a stepped groove which is divided into an upper part and a lower part, the lower part is a water tank, and the plate is provided with a water inlet and a water outlet which are communicated with the water tank. The stepped groove is sealed with the body through welding after covering the cover plate, and the back plate manufactured in the way can be used as a cooling back plate. At present, the welding method of the body of the back plate and the cover plate includes an electron beam welding method, a diffusion welding method, a flux welding method, and the like.

The traditional cooling copper back plate has the following defects: after the cooled copper back plate is used for a period of time, the cooling effect is obviously reduced.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an industrial cooling copper back plate, which can stably maintain a good cooling effect for a long time.

The utility model provides an industrial cooling copper backplate, includes backplate body, apron and sets up at least one ladder groove that extends along a certain direction on the backplate body, the outside of the apron that the extending direction's in ladder groove tip corresponds is provided with one section first type weld zone, the tip cover of the apron that corresponds is gone to the one end in first type weld zone, the other end in first type weld zone is kept away from corresponding apron and is located the backplate body.

The utility model provides an above-mentioned cooling copper backplate is owing to be provided with first type of butt fusion district for being connected between the apron that is located the extending direction tip on the ladder groove and the backplate body is more firm, and the leakproofness is better. The defects of cracking and the like are not easy to occur in the long-term use process. Thereby effectively guaranteed the leakproofness of ladder groove for the cooling water can be in the good operation of ladder inslot, thereby can guarantee the long-term stable better cooling effect of keeping of cooling copper backplate.

In one embodiment, the stepped groove comprises two linear portions and a connecting portion located between two adjacent linear portions, and the intersection of the connecting portion and the linear portions is an arc transition portion.

In one embodiment, the first-type welding area is arranged on one side of the cover plate corresponding to one end, away from the connecting part, of the straight line part.

In one embodiment, a second type of welding zone is arranged on one side of the cover plate corresponding to the intersection of the connecting part and the straight line part, one end of the second type of welding zone is in contact with the cover plate corresponding to the arc transition part, and the other end of the second type of welding zone is far away from the corresponding cover plate and is positioned on the back plate body.

In one embodiment, the first type of welding zone or the second type of welding zone is respectively arranged at two ends of one diagonal line of the back plate body.

In one embodiment, the stepped groove comprises a plurality of linear portions arranged at intervals, and the linear portions are sequentially connected end to end through a plurality of connecting portions.

In one embodiment, the first type of welding zone is respectively arranged at two ends of one diagonal line of the back plate body.

In one embodiment, the first-type welding zone is a friction stir welding type welding zone, and the starting end of the first-type welding zone is an end far away from the corresponding cover plate.

In one embodiment, the second type of welding zone is a friction stir welding type welding zone, and the starting end of the second type of welding zone is an end far away from the corresponding cover plate.

Drawings

Fig. 1 is a schematic view of an embodiment of an industrial cooled copper back plate according to an example of the present application, in which a second type fusion-bonding zone is provided on the arc transition side and a first type fusion-bonding zone is provided at the step groove end, and only a partial region of a cover plate is shown.

Fig. 2 is a schematic diagram of another embodiment of an industrial cooled copper back plate according to an example of the present application, wherein first-type welding zones are respectively disposed at two ends of a stepped groove, and only a partial area of a cover plate is shown in the drawing.

Wherein:

110. the first type welding zone 120 and the second type welding zone

131. Cover plate 132, cover plate 140 and stepped groove

141. The straight line part 142, the connecting part 143, the arc transition part 150 and the backboard body.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1 and 2, embodiments of the present application provide an industrial cooled copper backplane. It includes backplate body 150, apron and sets up at least one ladder groove 140 that extends along a certain direction on backplate body 150, the outside of the apron that the extending direction's of ladder groove 140 tip corresponds is provided with one section first type of fusion bonding district 110, the one end in first type of fusion bonding district 110 covers the tip of the apron 131 that corresponds, the other end in first type of fusion bonding district 110 is kept away from corresponding apron 131 and is located backplate body 150.

Through long-term research, the present application finds that one of the main reasons for reducing the cooling effect of the cooling copper back plate is that the welded portions of the cover plate 131 and some portions of the back plate body 150 are prone to have defects such as micro-cracks due to deformation, which may cause the cooling water in the stepped groove 140 sealed by the cover plate 131 to easily overflow from the micro-cracks, and as time goes on, the defects may become severe gradually under the corrosion of the cooling water, thereby significantly reducing the cooling effect of the cooling copper back plate.

The cooling copper back plate is provided with the first-type welding zone 110, so that the connection between the cover plate 131 and the back plate body 150, which are positioned at the end part of the extending direction, on the stepped groove 140 is firmer, and the defects of cracking and the like are not easy to occur in the long-term use process. Thereby effectively guaranteed the leakproofness of ladder groove 140 for the cooling water can be good operation in ladder groove 140, thereby can guarantee that the long-term stable better cooling effect of keeping of cooling copper backplate.

Specifically, if one stepped groove 140 has a plurality of end portions in the extending direction thereof, some of the end portions may be provided with the first-type fusion-bonding regions 110 on the outer side, or all of the end portions may be provided with the first-type fusion-bonding regions 110 on the outer side.

In this embodiment, the stepped groove 140 includes two linear portions 141 and a connecting portion 142 located between two adjacent linear portions 141, and an intersection of the connecting portion 142 and the linear portion 141 is an arc transition portion 143.

For example, two linear portions 141 are arranged in parallel, and one end of one linear portion 141 is connected to the other linear portion 141 by a vertically arranged connecting portion 142. The intersection of the connecting portion 142 and the corresponding straight portion 141 is an arc transition portion 143.

Through experiments, when the cover plate is welded by the friction stir welding method, if the joint part 142 and the straight line part 141 are in a right-angle shape, the hardness value of the material at the joint part is lower, namely the material at the joint part is softer, and defects such as voids are easy to occur. After the arc transition part 143 is changed, the hardness value at the position is obviously improved, and defects such as cavities and the like are not easy to occur. This is also advantageous to ensure long-term stable operation of the cooled copper backing plate.

In addition, the first-type welding zone 110 is disposed on the side of the cover plate corresponding to the end of the straight portion 141 away from the connecting portion 142. That is, one end of the linear portion 141 is provided with the connecting portion 142, and the other end of the linear portion 141 is provided with the first-type welding region 110 at a side of the cover plate.

In this embodiment, a second type of welding zone 120 is disposed on one side of the cover plate corresponding to the intersection of the connecting portion 142 and the straight portion 141, one end of the second type of welding zone 120 contacts the cover plate 132 corresponding to the arc transition portion 143, and the other end of the second type of welding zone 120 is far away from the corresponding cover plate 132 and is located on the back plate body 150. In this way, the weld between the cover plate 132 and other structures at the intersection is made very secure.

Specifically, the second-type welding zone 120 may cover the arc-shaped outer edge of the cover plate 132 corresponding to the arc transition portion 143. Through research, the part is a position where defects easily appear.

In this embodiment, the first-type welding zone 110 or the second-type welding zone 120 is respectively disposed at two ends of a diagonal line of the back plate body 150.

For example, the backplate body 150 has a rectangular shape, and the backplate body 150 is provided with a stepped groove 140. The first type fusion-bonding zone 110 or the second type fusion-bonding zone 120 is respectively arranged at two ends of one diagonal line of the back plate body 150.

This arrangement makes the strength of both ends of the diagonal line of the back plate body 150 high. Because the cooling copper back plate is often required to be hoisted when being installed, namely, one corner of the cooling copper back plate is hoisted by hoisting equipment, so that the cooling copper back plate easily generates a torque, and the torque easily deforms the end part of the diagonal line of the cooling copper back plate. And this application is owing to be provided with the melting connection district, and the hardness in melting connection district is higher, can effectively resist the deformation, just makes the cooling copper backplate be difficult to produce some defects because of local deformation. This also contributes to the increased life of the cooled copper backing plate.

Specifically, the stepped groove 140 includes a plurality of linear portions 141 arranged at intervals, and the linear portions 141 are sequentially connected end to end by a plurality of connecting portions 142. On the basis, the first-type welding areas 110 are respectively arranged at two ends of one diagonal line of the back plate body 150.

In this embodiment, the first-type welding zone 110 is a friction stir welding-type welding zone, and the starting end of the first-type welding zone 110 is an end far away from the corresponding cover plate. That is, the first-type fused regions 110 described above are formed by friction stir welding.

Specifically, the welding pins of the friction stir welding apparatus are first rotated on the back plate body 150 away from the corresponding cover plate, and then gradually approach the cover plate along the cover plate body, and then the end portions of the cover plate and the corresponding structures are fused. This forms the first type of fused zone 110 described above. Accordingly, the starting end of the first-type welding zone 110 is the end far away from the corresponding cover plate.

In this embodiment, the second-type welding region 120 is a friction stir welding-type welding region, and the starting end of the second-type welding region 120 is an end far away from the corresponding cover plate.

Specifically, the welding pins of the friction stir welding apparatus are first rotated on the back plate body 150 away from the corresponding cover plate, and then gradually approach the cover plate along the cover plate body, and then the end portions of the cover plate and the corresponding structures are fused. This forms the second type of fused zone 120 described above. Accordingly, the starting end of the second-type welding zone 120 is the end far away from the corresponding cover plate.

The first-type fusion-bonded zone 110 and the second-type fusion-bonded zone 120 may have a strip shape including a plurality of bent portions, an arc shape, or the like. The first-type fused regions 110 and the second-type fused regions 120 need to have a certain length.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an industrial cooling copper backplate, includes backplate body, apron and sets up at least one ladder groove that extends along certain direction on the backplate body, its characterized in that, the outside of the apron that the extending direction's of ladder groove tip corresponds is provided with one section first type weld zone, the tip cover of the apron that corresponds is gone to the one end in first type weld zone, the other end in first type weld zone is kept away from corresponding apron and is located the backplate body.

2. The industrial cooled copper backing plate of claim 1, wherein said stepped groove comprises two linear portions and a connecting portion between two adjacent linear portions, and the intersection of said connecting portion and said linear portions is an arc transition.

3. The industrial cooled copper backing plate according to claim 2, wherein the first-type weld zone is provided on a side of the cover plate corresponding to an end of the straight portion away from the connecting portion.

4. The industrial cooled copper backing plate according to claim 2 or 3, wherein a second type of welding zone is provided at one side of the cover plate corresponding to the intersection of the connecting portion and the straight portion, one end of the second type of welding zone is in contact with the cover plate corresponding to the arc transition portion, and the other end of the second type of welding zone is away from the corresponding cover plate and is located on the backing plate body.

5. The industrial cooled copper backing plate according to claim 4, wherein the first type of fusion-bonding zone or the second type of fusion-bonding zone is provided at both ends of one diagonal line of the backing plate body.

6. The industrial cooled copper backing plate of claim 1, wherein said stepped trough comprises a plurality of spaced apart linear portions, each of said linear portions being sequentially connected end to end by a plurality of connecting portions.

7. The industrial cooled copper backing plate according to claim 1 or 6, wherein the first type of fusion-bonding zone is provided at each of two ends of one diagonal line of the backing plate body.

8. The industrial cooled copper backing plate of claim 1, wherein the first type of fused regions are friction stir welded fused regions and the starting end of the first type of fused regions is the end away from the corresponding cover plate.

9. The industrial cooled copper backing plate of claim 4, wherein the second type of fused regions are friction stir welded fused regions and the beginning of the second type of fused regions is the end away from the corresponding cover plate.