TWI742947B - Copper block browning metohd - Google Patents

Abstract

A copper block browning method is provided. The copper block browning method includes a preparation step, a copper block placement step, and a browning step. The preparation step is implemented by providing a copper block browning fixture including a substrate and a plurality of accommodating structures. The accommodating structures are spaced apart with each other. Each of the accommodating structures includes a first slot that is recessed in a first board surface of the substrate and a second slot that is recessed in a second board surface of the substrate. The copper block placement step is implemented by placing a plurality of copper blocks in the accommodating structures so that the first slot and the second slot of each of the accommodating structures jointly accommodating one of the copper blocks. The browning step is implemented by immersing the copper block browning fixture carrying the copper blocks in a browning solution to perform a browning operation.

Description

Copper block browning method

The invention relates to a browning method, in particular to a copper block browning method.

In the prior art, when the copper block is subjected to browning treatment, usually a plurality of copper blocks are placed in a fishing net and jointly immersed in a browning chemical solution for the browning operation. However, when the above-mentioned method is used for the browning operation, not only a large number of copper blocks cannot be browned at the same time, but also because the copper blocks overlap each other during the browning operation, the copper blocks cannot be completely browned. change.

Therefore, how to provide a copper block browning method to overcome the above-mentioned shortcomings has become one of the important issues to be solved by this business.

The technical problem to be solved by the present invention is to provide a copper block browning method in view of the deficiencies of the prior art, which can simultaneously perform browning operations on a large number of copper blocks, and can also prevent the copper blocks from being incomplete due to overlapping of the copper blocks. The problem of ground being browned.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a copper block browning method, which includes: a preparation step, providing a copper block browning jig, the copper block browning jig includes There is a substrate and a plurality of accommodating structures; wherein the substrate is defined with a first plate surface and a second plate surface on opposite sides, and the plurality of accommodating structures are spaced apart from each other and pass through the substrate ; Wherein, each of the accommodating structure includes a concave set on the first plate surface A first groove and a second groove recessed on the second plate surface, the first groove is spatially connected to the second groove, and a first groove of the first groove The opening width is smaller than a second opening width of the second groove; a copper block placement step is to place a plurality of copper blocks into a plurality of the accommodating structures, so that each of the accommodating structures The first groove and the second groove together contain a copper block; wherein, in each of the accommodating structures, the first opening width is less than a width of the copper block Maximum width; and a browning step of immersing the copper block browning fixture carrying a plurality of the copper blocks in a browning liquid to perform a browning operation.

One of the beneficial effects of the present invention is that the copper block browning method provided by the present invention can be achieved by "the copper block browning method includes the preparation step, the copper block placing step, and the browning Step", "Each of the accommodating structures includes a first groove recessed on the first plate surface and a second groove recessed on the second plate surface, the first recess The groove is spatially connected to the second groove, and a first opening width of the first groove is smaller than a second opening width of the second groove" and "in each of the receptacles In the arrangement structure, the first opening width is smaller than a maximum width of the copper block" technical solution, so that a large number of copper blocks can be browned at the same time, and it can also avoid copper blocks caused by overlapping copper blocks. The problem that the block cannot be completely browned.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings about the present invention. However, the provided drawings are only for reference and description, and are not used to limit the present invention.

100: Copper block browning fixture

1: substrate

1a: The first board

1b: second board surface

2: Housing structure

2a: Reach the top

21: The first groove

211: First ring side wall

22: second groove

221: Second Ring Side Wall

C: Copper block

C1: Base

C2: Convex

D1: first depth

D2: second depth

G1: first gap

G2: second gap

T1: substrate thickness

T2: Copper block thickness

W1: first opening width

W2: second opening width

W3: Maximum width

S110: Preparation steps

S120: Copper block placement steps

S130: Browning step

Fig. 1 is a flow chart of the steps of a copper block browning method according to an embodiment of the present invention.

2 is a schematic diagram of the preparation steps of the copper block browning method according to the embodiment of the present invention.

Fig. 3 is a schematic diagram of the preparation steps of a copper block browning method according to another embodiment of the present invention picture.

4 is a schematic cross-sectional view of FIG. 2 along the line IV-IV.

FIG. 5 is a schematic diagram of the copper block placement step of the copper block browning method according to the embodiment of the present invention.

6 is a schematic diagram of the copper block placement step of the copper block browning method according to another embodiment of the present invention.

The following are specific examples to illustrate the implementation of the "copper block browning method" disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual dimensions, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another, or one signal from another signal. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

Please refer to FIG. 1, which is a flowchart of the steps of a copper block browning method according to an embodiment of the present invention. The present invention provides a copper block browning method. The copper block browning method includes a preparation step S110, a copper block placement step S120, and a browning step S130.

Please refer to Figures 2 to 4, Figure 2 is the preparation of the copper block browning method according to the embodiment of the present invention A schematic diagram of the steps. FIG. 3 is a schematic diagram of the preparation steps of a copper block browning method according to another embodiment of the present invention, and FIG. 4 is a schematic cross-sectional view taken along the section line IV-IV in FIG. 2. In the preparation step S110, a copper block browning jig 100 is provided. The copper block browning jig 100 includes a substrate 1 and a plurality of accommodating structures 2. The substrate 1 is defined with a first plate surface 1a and a second plate surface 1b located on opposite sides. As shown in FIG. 4, in actual application, the first plate surface 1a is set downward, and the second plate surface 1b is set upward.

A plurality of the accommodating structures 2 are spaced apart from each other and penetrate the substrate 1. Each of the accommodating structures 2 includes a first groove 21 recessed on the first plate surface 1a and a second groove 22 recessed on the second plate surface 1b, the first The groove 21 is spatially connected to the second groove 22, and a first opening width W1 of the first groove 21 is smaller than a second opening width W2 of the second groove 22.

Preferably, in each accommodating structure 2, the first opening width W1 of the first groove 21 is between 40% of the second opening width W2 of the second groove 22. % To 60%, and a first depth D1 of the first groove 21 is between 30% to 50% of a second depth D2 of the second groove 22, but the present invention does not Limited by this.

It should be noted that in each of the accommodating structures 2 of this embodiment, the first groove 21 and the second groove 22 are square in shape on a horizontal plane as an example. The shapes of the first groove 21 and the second groove 22 can be changed according to requirements or corresponding to the shape of the copper block C, and the present invention is not limited herein. For example, the outlines of the first groove 21 and the second groove 22 on the horizontal plane may also be rectangular.

It is worth mentioning that the preferred number of the accommodating structures 2 included in the copper block browning jig 100 is between 30 and 60, and a more preferred number is between 40 and Between 50. In this embodiment, a plurality of the accommodating structures 2 are arranged in a staggered manner on the copper block browning jig 100, and any one of the accommodating structures 2 and the nearest accommodating structure 2 The distance therebetween is between 160% and 180% of the second opening width W2. It should be noted that the present invention does not limit the arrangement of the accommodating structure 2. Please refer to FIG. 3. For example, in another embodiment of the present invention, the accommodating structure 2 is The copper block browning jig 100 can also be arranged in a matrix or other arrangements.

Please refer to FIG. 5, which is a schematic diagram of the copper block placement step of the copper block browning method according to the embodiment of the present invention. In the copper block placement step S120, a plurality of copper blocks C are respectively placed into the plurality of accommodating structures 2 so that the first groove 21 and the accommodating structure 2 of each of the accommodating structures 2 The second groove 22 collectively accommodates the copper block C. In addition, in each accommodating structure 2, the first opening width W1 is smaller than a maximum width W3 of the copper block C, and the second opening width W2 is larger than the total width W3 of the copper block C. The maximum width W3 is such that the accommodating structure 2 can effectively accommodate the copper block C, and the copper block C will not deviate from the accommodating structure 2 from the first groove 21.

In each accommodating structure 2, the first groove 21 has a first annular side wall 211, the second groove 22 has a second annular side wall 221, and when each of the accommodating structures 2 When accommodating the copper block C, a first gap G1 between the first ring side wall 211 and the copper block C is not greater than a gap between the second ring side wall 221 and the copper block C The second gap G2. Preferably, the first gap G1 is between 0.25 mm and 0.75 mm, and the second gap G2 is between 0.75 mm and 1.25 mm.

In each of the accommodating structures, the first groove 21 and the second groove 22 jointly form a stepped structure, and the stepped structure is parallel to the first plate surface 1a or the The portion of the second board surface 1b defines a top portion 2a. The abutment portion 2a is located between the first groove 21 and the second groove 22, and when each of the accommodating structures 2 accommodates the copper block C, the accommodating structure 2 is The copper block C is pressed against the top part 2a.

In this embodiment, each of the copper blocks C defines a base C1 and protrudes from the A convex portion C2 of the base portion C1. When each accommodating structure 2 accommodates the copper block C, the first groove 21 can accommodate the convex portion C2 of the copper block C, and the second groove 22 can accommodate The base C1 of the copper block C is placed.

To put it another way, since the accommodating structure 2 penetrates the substrate 1, when each of the accommodating structures 2 accommodates the copper block C, the convex portion C2 of the copper block C is exposed From the first groove 21, and the base C1 of the copper block C is exposed from the second groove 22.

In this embodiment, the base portion C1 and the convex portion C2 of the copper block C are both cubic, and the volume of the base portion C1 is greater than the volume of the convex portion C2, but the shape of the copper block C Can be changed according to demand. Please refer to FIG. 6, which is a schematic diagram of the copper block placement step of the copper block browning method according to another embodiment of the present invention. For example, in another embodiment of the present invention, the copper block C may not have the convex portion C2, and the shape of the copper block C is approximately a rectangular parallelepiped, but the present invention is not limited to this.

In addition, when each of the accommodating structures 2 is used for accommodating the copper block C, each of the accommodating structures 2 is to abut the base portion C1 of the copper block C by the top portion 2a, and when When the copper block browning jig 100 carrying a plurality of the copper blocks C is immersed in the browning liquid to perform the browning operation, each of the copper blocks C will be placed in the corresponding container In structure 2, it is slightly shaken on a horizontal surface, so that each of the copper blocks C can be more completely immersed in the browning liquid.

Furthermore, since the first gap G1 between the first ring side wall 211 and the copper block C is not greater than the second gap between the second ring side wall 221 and the copper block C G2. When the copper block browning jig 100 carrying a plurality of the copper blocks C is immersed in the browning liquid to perform the browning operation, the base C1 of the copper block C is relatively It is not easy to cause the problem of incomplete browning due to contact with the second ring sidewall 221 of the second groove 22.

The substrate 1 has a substrate thickness T1, and each of the copper blocks C has a copper block The thickness T2, the substrate thickness T1 is greater than the copper block thickness T2, and the absolute value of the difference between the substrate thickness T1 and the copper block thickness T2 is between 0.75 mm and 1.25 mm. Through the design that the substrate thickness T1 is greater than the copper block thickness T2, when each of the accommodating structures 2 accommodates the copper block C, the copper block C is less likely to be removed from the second groove 22 Leave the accommodating structure 2.

Since the substrate thickness T1 is greater than the copper block thickness T2, when each of the accommodating structures 2 accommodates the copper block C, the convex portion C2 of the copper block C does not protrude from the copper block C The first groove 21 of the accommodating structure 2 and the base C1 of the copper block C do not protrude from the second groove 22 of the accommodating structure 2. Accordingly, the chance of the copper block C being damaged due to collision in the copper block browning method can be effectively reduced.

In the browning step S130, the copper block browning jig 100 carrying a plurality of the copper blocks C is immersed in a browning liquid to perform a browning operation. It should be noted that, since in the browning step S130, the plurality of copper blocks C are respectively located in the plurality of accommodating structures 2, so the plurality of copper blocks C will not overlap each other because of each other. This leads to the problem of incomplete browning. That is to say, in the browning step S130, any one of the copper blocks C will not be in contact with another other copper block C. In contrast, any copper block browning method that makes the copper blocks contact each other is difficult to compare with the copper block browning method in this case.

In the browning step S130, before the browning operation, the copper block browning jig 100 carrying a plurality of the copper blocks C may be immersed in a pickling liquid A pickling operation, and the copper block browning jig 100 carrying a plurality of the copper blocks C is immersed in an alkaline washing solution to perform an alkaline washing operation. In this embodiment, the operation time of the pickling operation and the operation time of the alkaline washing operation are not greater than the operation time of the browning operation, and the operation time of the acid washing operation is between 20 seconds and 30 seconds. Seconds, the operation time of the alkaline washing operation is between 25 seconds and 35 seconds, and the operation time of the browning operation is between 55 seconds and 65 seconds However, the present invention is not limited to this.

It should be noted that, after performing the pickling operation and before the alkaline washing operation, the copper block browning jig 100 carrying a plurality of the copper blocks C can also be immersed in water to perform a The first washing operation. After the alkaline washing operation and before the browning operation, the copper block browning jig 100 carrying a plurality of the copper blocks C may also be immersed in water to perform a second water washing operation. After the browning operation, the copper block browning jig 100 carrying a plurality of the copper blocks C can also be immersed in water to perform a third water washing operation. In this embodiment, the operation time of the first water washing operation, the second water washing operation, and the third water washing operation are all between 25 seconds and 35 seconds, but the present invention is not limited to this.

In addition, after the browning operation is completed, a plurality of the copper blocks C may be removed from the copper block browning jig 100, and a baking operation may be performed on the plurality of copper blocks C to Dry the surface of each copper block C. In this embodiment, the operation time of the baking operation is between 90 seconds and 100 seconds, but the present invention is not limited to this.

[Beneficial Effects of Embodiments of the Invention]

One of the beneficial effects of the present invention is that the copper block browning method provided by the present invention can be achieved by "the copper block browning method includes the preparation step, the copper block placing step, and the browning Step", "Each of the accommodating structures includes a first groove recessed on the first plate surface and a second groove recessed on the second plate surface, the first recess The groove is spatially connected to the second groove, and a first opening width of the first groove is smaller than a second opening width of the second groove" and "in each of the receptacles In the arrangement structure, the first opening width is smaller than a maximum width of the copper block" technical solution, so that a large number of copper blocks can be browned at the same time, and it can also avoid copper blocks caused by overlapping copper blocks. The problem that the block cannot be completely browned.

Furthermore, the copper block browning method provided by the present invention can be achieved by In each accommodating structure, the first groove and the second groove jointly form a stepped structure, and the stepped structure is parallel to the first plate surface or the second plate The position of the surface defines an abutting top" and "the abutting top is located between the first groove and the second groove, and when each of the accommodating structures accommodates the copper block, the The accommodating structure is a technical solution that pushes against the copper block through the top part, so that the copper block browning jig can better accommodate the copper block, and during the browning operation During the process, the copper block can be more completely immersed in the browning liquid.

The content disclosed above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

S110: Preparation steps

S120: Copper block placement steps

S130: Browning step

Claims (9)

A copper block browning method, comprising: a preparation step, providing a copper block browning jig, the copper block browning jig includes a substrate and a plurality of accommodating structures; wherein, the substrate is defined to be located opposite A first plate surface and a second plate surface on both sides, and a plurality of the accommodating structures are spaced apart from each other and pass through the substrate; wherein, each of the accommodating structures includes a recess provided in the first A first groove on a board surface and a second groove recessed on the second board surface, the first groove is spatially connected to the second groove, and the first groove A first opening width of the groove is smaller than a second opening width of the second groove; a copper block placement step is to place a plurality of copper blocks into the plurality of accommodating structures, so that each The first groove and the second groove of the accommodating structure jointly accommodate a copper block; wherein, in each of the accommodating structures, the width of the first opening is smaller than the width of the first opening. A maximum width of the copper block; and a browning step of immersing the copper block browning jig carrying a plurality of the copper blocks in a browning liquid to perform a browning operation; wherein Before the browning operation, the copper block browning jig carrying a plurality of the copper blocks is also immersed in a pickling liquid to perform a pickling operation, and a plurality of the copper blocks are carried. The copper block browning fixture of the copper block is immersed in an alkaline washing liquid to perform an alkaline washing operation. The copper block browning method according to claim 1, wherein, in each of the accommodating structures, the first groove has a first ring side wall, and the second groove has a second ring side wall , And when each of the accommodating structures accommodates the copper block, a first gap between the first ring side wall and the copper block is not greater than the gap between the second ring side wall and the copper block A second gap between. The copper block browning method according to claim 2, wherein the first gap is between 0.25 mm and 0.75 mm, and the second gap is between 0.75 mm Between millimeters and 1.25 millimeters. The copper block browning method according to claim 1, wherein, in each of the accommodating structures, the first opening width of the first groove is between the width of the second groove Between 40% and 60% of the width of the second opening; wherein, in each of the accommodating structures, a first depth of the first groove is between a second depth of the second groove Between 30% and 50% of the total. The copper block browning method according to claim 1, wherein, in each of the accommodating structures, the first groove and the second groove jointly form a stepped structure, and the stepped structure In the structure, a portion parallel to the first plate surface or the second plate surface defines an abutting top; wherein, the abutting top is located between the first groove and the second groove, and whenever When the accommodating structure accommodates the copper block, the accommodating structure abuts the copper block through the top abutment. The copper block browning method according to claim 1, wherein the number of the accommodating structures included in the copper block browning jig is between 30 and 60, and a plurality of the accommodating structures The structures are arranged in a staggered arrangement on the copper block browning jig, and the distance between any one of the accommodating structures and the closest accommodating structure is between 160% of the width of the second opening To 180%. The copper block browning method according to claim 1, wherein each of the copper blocks defines a base and a protrusion protruding from the base; wherein, when each of the accommodating structures accommodates the copper When a block, the first groove can accommodate the convex portion of the copper block, and the second groove can accommodate the base portion of the copper block. The copper block browning method according to claim 7, wherein when each of the accommodating structures accommodates the copper block, the convex portion of the copper block is exposed from the first groove and It does not protrude from the first groove, and the base of the copper block is exposed from the second groove and does not protrude from the second groove. The copper block browning method according to claim 1, wherein the substrate has a substrate thickness, each of the copper blocks has a copper block thickness, and the substrate thickness is greater than The thickness of the copper block, and the absolute value of the difference between the thickness of the substrate and the thickness of the copper block is between 0.75 mm and 1.25 mm.

Images