CN114521069A - Copper block browning jig and manufacturing method thereof - Google Patents

Copper block browning jig and manufacturing method thereof Download PDF

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Publication number
CN114521069A
CN114521069A CN202011303485.3A CN202011303485A CN114521069A CN 114521069 A CN114521069 A CN 114521069A CN 202011303485 A CN202011303485 A CN 202011303485A CN 114521069 A CN114521069 A CN 114521069A
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CN
China
Prior art keywords
copper block
groove
browning
receiving
substrate
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Granted
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CN202011303485.3A
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Chinese (zh)
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CN114521069B (en
Inventor
张式杰
徐国彰
孙奇
吕政明
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Tripod Wuxi Electronic Co Ltd
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Tripod Wuxi Electronic Co Ltd
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Priority to CN202011303485.3A priority Critical patent/CN114521069B/en
Priority to KR1020200188212A priority patent/KR102605363B1/en
Publication of CN114521069A publication Critical patent/CN114521069A/en
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Publication of CN114521069B publication Critical patent/CN114521069B/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/38Improvement of the adhesion between the insulating substrate and the metal
    • H05K3/382Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/52Treatment of copper or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/63Treatment of copper or alloys based thereon
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/38Improvement of the adhesion between the insulating substrate and the metal
    • H05K3/382Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
    • H05K3/383Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by microetching
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/03Metal processing
    • H05K2203/0307Providing micro- or nanometer scale roughness on a metal surface, e.g. by plating of nodules or dendrites
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention discloses a copper block browning jig and a manufacturing method thereof. The copper block browning fixture comprises a substrate and a plurality of accommodating structures. The substrate is defined with a first plate surface and a second plate surface which are positioned at two opposite sides. Each accommodating structure comprises a first groove concavely arranged on the first plate surface and a second groove concavely arranged on the second plate surface, the first groove is communicated with the second groove, and the width of a first opening of the first groove is smaller than that of a second opening of the second groove. The copper block browning fixture can correspondingly accommodate a plurality of copper blocks through a plurality of first grooves and a plurality of second grooves of a plurality of accommodating structures. When each accommodating structure is used for accommodating the copper block, the width of the first opening is smaller than the maximum width of the copper block.

Description

Copper block browning jig and manufacturing method thereof
Technical Field
The present invention relates to a tool and a method for manufacturing the same, and more particularly, to a copper block browning tool and a method for manufacturing the same.
Background
In the prior art, when a copper block is browned, a plurality of copper blocks are usually placed in a fishing net and are collectively immersed in a browning chemical solution to perform a browning operation. However, when the browning operation is performed by the above method, not only the browning operation cannot be simultaneously performed on a large number of copper blocks, but also the copper blocks cannot be completely browned because the copper blocks are overlapped with each other during the browning operation.
Therefore, it is an important subject to be solved by the present invention to provide a copper block browning tool and a method for manufacturing the same to overcome the above-mentioned drawbacks by improving the structural design.
Disclosure of Invention
The invention aims to solve the technical problem of providing a copper block browning jig and a manufacturing method thereof aiming at the defects of the prior art, which can effectively improve the efficiency of browning operation and the integrity of copper block browning.
In order to solve the above technical problem, one of the technical solutions of the present invention is to provide a copper block browning fixture, which includes: a substrate, which defines a first plate surface and a second plate surface on two opposite sides; and a plurality of receiving structures disposed at intervals and penetrating the substrate; each accommodating structure comprises a first groove concavely arranged on the first plate surface and a second groove concavely arranged on the second plate surface, the first groove is communicated with the second groove in space, and the width of a first opening of the first groove is smaller than that of a second opening of the second groove; the copper block browning fixture can correspondingly accommodate a plurality of copper blocks through a plurality of first grooves and a plurality of second grooves of a plurality of accommodating structures; when each accommodating structure is used for accommodating the copper block, the width of the first opening is smaller than the maximum width of the copper block.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a method for manufacturing a copper block browning fixture, including: a pre-step, providing a substrate, wherein the substrate is defined with a first plate surface and a second plate surface which are positioned at two opposite sides; a first blind fishing step, performing blind fishing on the first plate surface of the substrate to form a plurality of first grooves which are spaced from each other; and a second blind-fishing step of performing blind-fishing on the second plate surface of the substrate to form a plurality of second grooves corresponding in position to the plurality of first grooves, respectively; the base plate is formed into a copper block browning jig after the first blind fishing step and the second blind fishing step are completed; the second grooves are respectively communicated with the first grooves in space; each second groove and the corresponding first groove define an accommodating structure together, and in each accommodating structure, a first opening width of the first groove is smaller than a second opening width of the second groove, and the first groove and the second groove are communicated with each other and penetrate through the first plate surface and the second plate surface of the substrate; the copper block browning fixture can correspondingly accommodate a plurality of copper blocks through a plurality of accommodating structures; when each accommodating structure is used for accommodating the copper block, the width of the first opening is smaller than the maximum width of the copper block.
One of the benefits of the present invention is that the copper block browning fixture and the manufacturing method thereof provided by the present invention can effectively improve the efficiency of the browning operation and the integrity of the browning of the copper block by using the technical scheme that each of the accommodating structures comprises a first groove concavely arranged on the first plate surface and a second groove concavely arranged on the second plate surface, the first groove is spatially communicated with the second groove, and a first opening width of the first groove is smaller than a second opening width of the second groove.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
FIG. 1 is a schematic view of a copper block browning fixture according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1;
FIG. 3 is a schematic view of a copper block brown oxidation jig according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a pre-step of a method for manufacturing a copper block browning fixture according to an embodiment of the invention;
FIG. 5 is a schematic view of a first blind scooping step of the method for manufacturing a copper block browning fixture according to the embodiment of the invention;
fig. 6 is a schematic diagram of a second blind fishing step of the method for manufacturing a copper block browning fixture according to the embodiment of the invention.
Description of the symbols
100: copper block browning jig
1: substrate
1 a: the first plate surface
1 b: second plate surface
2: containing structure
2 a: butting part
21: the first groove
211: first ring side wall
22: second groove
221: second ring side wall
C: copper block
C1: base part
C2: convex part
D1: first depth
D2: second depth
G1: first gap
G2: second gap
T1: thickness of substrate
T2: thickness of copper block
W1: width of the first opening
W2: width of the second opening
W3: maximum width
S110: preliminary step
S120: first blind fishing step
S130: the second blind fishing step
Detailed Description
The following is a description of the embodiments of the copper block browning tool and the method for manufacturing the same disclosed in the present invention with specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.
[ copper billet browning jig ]
Referring to fig. 1 to 3, fig. 1 is a schematic view of a copper block browning fixture according to an embodiment of the invention, fig. 2 is a schematic cross-sectional view of an extended line II-II in fig. 1, and fig. 3 is a schematic view of a copper block carried by the copper block browning fixture according to an embodiment of the invention. The embodiment of the invention provides a copper block browning fixture 100, and the copper block browning fixture 100 can be used for simultaneously bearing a plurality of copper blocks C to perform a browning operation. Specifically, the browning operation may be performed by immersing the copper block browning jig 100 carrying the plurality of copper blocks C in a browning liquid, and the browned copper blocks C can be applied to a related process of a circuit board, but the invention is not limited thereto.
The copper block browning fixture 100 comprises a substrate 1 and a plurality of accommodating structures 2 formed on the substrate 1. The substrate 1 defines a first board surface 1a and a second board surface 1b on two opposite sides. It should be noted that the first plate surface 1a and the second plate surface 1b of the substrate 1 preferably do not have any copper material, so as to prevent the substrate 1 from being affected by the browning liquid during the browning operation.
A plurality of receiving structures 2 are arranged at intervals from each other and penetrate the substrate 1. Specifically, each of the accommodating structures 2 includes a first groove 21 and a second groove 22, the first groove 21 is concavely disposed on the first board surface 1a, and the second groove 22 is concavely disposed on the second board surface 1 b. In each of the receiving structures 2, the first groove 21 is spatially communicated with 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.
The copper block browning fixture 100 can correspondingly accommodate a plurality of copper blocks C through the plurality of first grooves 21 and the plurality of second grooves 22 of the plurality of accommodating structures 2. When each receiving structure 2 is used to receive the copper block C, 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 maximum width W3 of the copper block C, so that the receiving structure 2 can effectively receive the copper block C, and the copper block C does not detach from the receiving structure 2 from the first groove 21.
In each receiving structure 2 of the present embodiment, the first opening width W1 of the first groove 21 is between 40% and 60% of the second opening width W2 of the second groove 22, and a first depth D1 of the first groove 21 is between 30% and 50% of a second depth D2 of the second groove 22, so that each receiving structure 2 can preferably receive the copper block C, but the present invention is not limited thereto.
It should be noted that, in each of the accommodating structures 2 of the present embodiment, the outer shapes of the first groove 21 and the second groove 22 on a horizontal plane are square as an example, but the outer shapes of the first groove 21 and the second groove 22 may be changed according to requirements or corresponding to the outer shape of the copper block C, and the invention is not limited thereto. For example, the first groove 21 and the second groove 22 may have a rectangular shape in the horizontal plane.
In each receiving structure 2, the first groove 21 has a first annular sidewall 211, the second groove 22 has a second annular sidewall 221, and when each receiving structure 2 is used for receiving the copper block C, a first gap G1 between the first annular sidewall 211 and the copper block C is not larger than a second gap G2 between the second annular sidewall 221 and the copper block C. 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.
Further, each of the accommodating structures 2 defines a top portion 2a, the top portion 2a is located between the first groove 21 and the second groove 22, and when each of the accommodating structures 2 is configured to accommodate the copper block C, the accommodating structure 2 is configured to abut against the copper block C through the top portion 2a, so as to prevent the copper block C from being separated from the accommodating structure 2. In other words, the first groove 21 and the second groove 22 of each accommodating structure 2 similarly and jointly form a stepped structure, and a portion of the stepped structure parallel to the first board surface 1a (or the second board surface 1b) is defined as the abutting portion 2 a. That is, in practical use, the first plate surface 1a and the second plate surface 1b are preferably provided so as to face downward and upward, respectively (as shown in fig. 3).
The number of the accommodating structures 2 included in the copper block browning fixture 100 is preferably between 30 and 60, and more preferably between 40 and 50. In this embodiment, the plurality of receiving structures 2 are staggered on the copper block browning fixture 100, and a distance between any one of the receiving structures 2 and the receiving structure 2 closest thereto is between 160% and 180% of the second opening width W2. It should be noted that the arrangement of the accommodating structure 2 is not limited in the present invention, for example, in other embodiments not shown in the present invention, the accommodating structure 2 may be arranged on the copper block browning fixture 100 in a matrix or in other arrangements.
Referring to fig. 3, in the present embodiment, each copper block C defines a base C1 and a protrusion C2 protruding from the base C1. When each receiving structure 2 is used to receive the copper block C, the first groove 21 can be used to receive the protrusion C2 of the copper block C, and the second groove 22 can be used to receive the base C1 of the copper block C. In another aspect, since the receiving structures 2 penetrate through the substrate 1, when each receiving structure 2 is used to receive the copper block C, the protrusion C2 of the copper block is received in the first groove 21 and exposed to the external environment from the first groove 21, and the base C1 of the copper block is received in the second groove 22 and exposed to the external environment from the second groove 22.
In this embodiment, the base portion C1 and the protrusion portion C2 of the copper block C are cubic, and the volume of the base portion C1 is larger than that of the protrusion portion C2, but the shape of the copper block C may be changed according to the requirement, and is not limited to this embodiment. For example, in other embodiments not shown in the present invention, the copper block C may not have the protrusion C2, but the present invention is not limited thereto.
In addition, when each receiving structure 2 is used to receive the copper block C, each receiving structure 2 is configured to push the abutting portion 2a against the base portion C1 of the copper block C, and when the copper block browning jig 100 carrying a plurality of copper blocks C is immersed in the browning liquid medicine to perform the browning operation, each copper block C slightly swings on a horizontal plane in the corresponding receiving structure 2, so that each copper block C can be more completely immersed in the browning liquid medicine.
The substrate 1 has a substrate thickness T1, each copper block C has a copper block 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. By the design that the substrate thickness T1 is greater than the copper block thickness T2, when each receiving structure 2 is used for receiving the copper block C, the copper block C is less likely to fall out of the receiving structure 2 from the second groove 22.
Furthermore, since the substrate thickness T1 is greater than the copper block thickness T2, when each receiving structure 2 receives the copper block C, the convex portion C2 of the copper block C does not protrude from the first opening 21 of the receiving structure 2, and the base portion C1 of the copper block C does not protrude from the second opening 22 of the receiving structure 2. Accordingly, the chance of damage to the copper block C due to collision during the browning operation can be effectively reduced.
[ manufacturing method of copper block browning jig ]
Referring to fig. 4 to 6, fig. 4 is a schematic diagram illustrating a front step of a method for manufacturing a copper block browning fixture according to an embodiment of the present invention, fig. 5 is a schematic diagram illustrating a first blind fishing step of the method for manufacturing a copper block browning fixture according to the embodiment of the present invention, and fig. 6 is a schematic diagram illustrating a second blind fishing step of the method for manufacturing a copper block browning fixture according to the embodiment of the present invention.
The embodiment also discloses a manufacturing method of the copper block browning fixture, which comprises a pre-step S110, a first blind fishing step S120 and a second blind fishing step S130. However, the copper block browning fixture of the present embodiment can be manufactured by the above manufacturing method, but the invention is not limited thereto. Furthermore, the present invention is not limited to the content and sequence of the above steps in implementing the method for manufacturing the copper block browning fixture.
The steps of the method for manufacturing the copper block browning fixture of the present embodiment are described below, and please refer to the above description for the structure and other related features of each part of the copper block browning fixture, which will not be described further below.
As shown in fig. 4, in the pre-step S110, a substrate 1 is provided, and the substrate 1 defines a first board surface 1a and a second board surface 1b on opposite sides. It should be noted that the first board surface 1a and the second board surface 1b of the substrate 1 preferably do not have any copper material, and if the first board surface 1a or the second board surface 1b of the substrate 1 has the copper material, the copper material of the substrate 1 may be removed by etching after the pre-step S110 and before the first blind-fishing step S120.
As shown in fig. 5, in the first blind-tapping step S120, a plurality of first grooves 21 are formed at intervals on the first plate surface 1a of the substrate 1 by blind-tapping. In the first blind-scooping step S120, the abutting portion 2a is not yet formed on the substrate 1.
As shown in fig. 6, in the second blind-tapping step S130, the second plate surface 1b of the substrate is blind-tapped to form a plurality of second grooves 22 corresponding in position to the plurality of first grooves 21, respectively. The substrate 1 is formed into a copper block browning fixture 100 after the first blind fishing step S120 and the second blind fishing step S130 are completed.
It should be noted that, in the first blind-scooping step S120 of the present embodiment, the plurality of first grooves 21 do not penetrate through the substrate 1 (as shown in fig. 6), but the present invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the first grooves 21 may also penetrate through the substrate 1. In addition, in the embodiment, the first grooves 21 and the second grooves 22 may be formed by performing blind fishing with a blind fishing machine, but the invention is not limited thereto.
After the second blind fishing step S130 is completed, the second grooves 22 are respectively spatially communicated with the first grooves 21. Each of the second grooves 22 and the corresponding first groove 21 together define the receiving structure 2, and in each of the receiving structures 2, the first opening width W1 of the first groove 21 is smaller than the second opening width W2 of the second groove 22, and the first groove 21 and the second groove 22 are communicated with each other to penetrate through the first plate surface 1a and the second plate surface 1b of the substrate 1.
[ advantageous effects of embodiments of the present invention ]
One of the benefits of the present invention is that the copper block browning fixture and the manufacturing method thereof provided by the present invention can effectively improve the efficiency of the browning operation and the integrity of the browning of the copper block by using the technical scheme that each of the accommodating structures comprises a first groove concavely arranged on the first plate surface and a second groove concavely arranged on the second plate surface, the first groove is spatially communicated with the second groove, and a first opening width of the first groove is smaller than a second opening width of the second groove.
Furthermore, the copper block browning fixture and the manufacturing method thereof provided by the invention can better accommodate the copper block by the technical scheme that each accommodating structure is provided with an abutting part which is positioned between the first groove and the second groove, and when each accommodating structure is used for accommodating the copper block, the accommodating structure abuts against the copper block through the abutting part, and the first opening width of the first groove is 40-60% of the second opening width of the second groove in each accommodating structure, so that the copper block browning fixture can be more completely immersed in the browning liquid medicine in the browning operation process.
The disclosure is only a preferred embodiment of the invention and should not be taken as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The utility model provides a copper billet brown ization tool which characterized in that includes:
the substrate is defined with a first plate surface and a second plate surface which are positioned on two opposite sides; and
a plurality of receiving structures disposed at intervals and penetrating the substrate; each accommodating structure comprises a first groove concavely arranged on the first plate surface and a second groove concavely arranged on the second plate surface, the first groove is communicated with the second groove in space, and the width of a first opening of the first groove is smaller than that of a second opening of the second groove;
the copper block browning fixture can correspondingly accommodate a plurality of copper blocks through a plurality of first grooves and a plurality of second grooves of a plurality of accommodating structures;
when each accommodating structure is used for accommodating the copper block, the width of the first opening is smaller than the maximum width of the copper block.
2. The copper block browning tool of claim 1, wherein each of the receiving structures has an abutting portion, the abutting portion is located between the first groove and the second groove, and when each of the receiving structures is used for receiving the copper block, the receiving structure abuts against the copper block through the abutting portion.
3. The copper block browning fixture of claim 1, wherein in each of the receiving structures, the first opening width of the first groove is between 40% and 60% of the second opening width of the second groove; wherein, in each of the receiving structures, the first depth of the first groove is between 30% and 50% of the second depth of the second groove.
4. The copper block browning fixture of claim 1, wherein the number of the receiving structures included in the copper block browning fixture is between 30 and 60, a plurality of the receiving structures are staggered on the copper block browning fixture, and a distance between any one of the receiving structures and the receiving structure closest thereto is between 160% and 180% of the width of the second opening.
5. The copper block browning fixture of claim 1, wherein each copper block defines a base and a protrusion protruding from the base; when each receiving structure is used for receiving the copper block, the first groove can be used for receiving the convex part of the copper block, and the second groove can be used for receiving the base part of the copper block.
6. The copper block browning fixture of claim 1, wherein the substrate has a substrate thickness, each copper block has a copper block thickness, the substrate thickness is greater than the copper block thickness, and an absolute value of a difference between the substrate thickness and the copper block thickness is between 0.75 mm and 1.25 mm.
7. A manufacturing method of a copper block browning fixture comprises the following steps:
a pre-positioning step, providing a substrate, wherein the substrate is defined with a first plate surface and a second plate surface which are positioned at two opposite sides;
a first blind fishing step of performing blind fishing on the first plate surface of the substrate to form a plurality of first grooves spaced from each other; and
a second blind-fishing step of performing blind-fishing on the second plate surface of the substrate to form a plurality of second grooves corresponding in position to the plurality of first grooves, respectively; forming a copper block browning fixture after the first blind fishing step and the second blind fishing step are finished on the substrate;
the second grooves are respectively communicated with the first grooves in space; each second groove and the corresponding first groove define accommodating structures together, and in each accommodating structure, a first opening width of the first groove is smaller than a second opening width of the second groove, and the first groove and the second groove are communicated with each other and penetrate through the first plate surface and the second plate surface of the substrate;
the copper block browning fixture can correspondingly accommodate a plurality of copper blocks through a plurality of accommodating structures; when each accommodating structure is used for accommodating the copper block, the width of the first opening is smaller than the maximum width of the copper block.
8. The method according to claim 7, wherein each of the receiving structures has a top portion between the first and second grooves, and when each of the receiving structures is used to receive the copper block, the receiving structure is against the copper block through the top portion.
9. The method according to claim 7, wherein in each receiving structure, the first opening width of the first groove is between 40% and 60% of the second opening width of the second groove; wherein, in each of the receiving structures, the first depth of the first groove is between 30% and 50% of the second depth of the second groove.
10. The method according to claim 7, wherein the number of the receiving structures included in the copper block browning tool is between 30 and 60, a plurality of the receiving structures are staggered on the copper block browning tool, and a distance between any one of the receiving structures and the receiving structure closest to the receiving structure is between 160% and 180% of the width of the second opening.
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