CN112203420A - Manufacturing method of mirror-surface aluminum plate - Google Patents
Manufacturing method of mirror-surface aluminum plate Download PDFInfo
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- CN112203420A CN112203420A CN202010922730.2A CN202010922730A CN112203420A CN 112203420 A CN112203420 A CN 112203420A CN 202010922730 A CN202010922730 A CN 202010922730A CN 112203420 A CN112203420 A CN 112203420A
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- substrate
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- manufacturing
- aluminum plate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0047—Drilling of holes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a manufacturing method of a mirror aluminum plate, which is characterized by comprising the following steps of: the method comprises the following steps: preprocessing a mirror aluminum substrate, a PP sheet and a substrate, laminating the preprocessed substrate, the PP sheet and the mirror aluminum substrate in sequence, then pressing, and then sequentially carrying out molding and post-processing; the substrate pretreatment comprises the following steps in sequence: cutting, drilling, outer layer patterning, external inspection, solder prevention, silver melting and groove routing; routing the PP sheet and the substrate to expose the upper surface of the mirror aluminum substrate after pressing to form a mounting groove, wherein the mirror surface arranged on the mirror aluminum substrate is positioned on the upper surface; and the solder mask performs solder mask on the other surface of the substrate relative to the PP sheet. The integral method is simple, the cost is low, the method is suitable for batch production, the prepared mirror-surface aluminum plate has a good light reflection effect, the using effect of an LED lamp product can be improved, the product quality is good, the processing process is easy to control, and the processing precision of the mirror-surface aluminum plate can be improved.
Description
Technical Field
The invention relates to the field of PCBs (printed circuit boards), in particular to a manufacturing method of a mirror-surface aluminum plate.
Background
The PCB of the LED lighting product is usually manufactured by an aluminum plate, the LED board is manufactured by a conventional thermoelectric separation method, lamp beads need to be directly packaged on the PCB, the aluminum substrate has the characteristics of high heat conduction speed, high hardness, strong mechanical performance and the like, the field of aluminum substrate product sales application is mainly LED lamps, high-power heat dissipation equipment and the like, such as automobile LED lamps, stage LED lamps, miner lamps and other series of LED lamp products, wherein the automobile LED becomes a new sales growth point of thermoelectric separation copper substrate application, the demand capacity of automobile LED lamp markets in China is continuously increased along with the continuous promotion of the traffic informatization level in China, the development of upstream and downstream industrial chains is driven, the development of the technology of the products is promoted, and the technology upgrade of the domestic thermoelectric separation board products is promoted. Therefore, the PCB product adopting the aluminum substrate has wide market development prospect.
The LED lighting product has certain requirements on the light reflection rate and the surface hardness of the aluminum plate, but the light reflection rate of the common aluminum plate is low, the light reflection rate of the mirror aluminum substrate is high, but the mirror aluminum plate is greatly different from the common aluminum substrate in the manufacturing process, and the requirements on the quality and the manufacturing process of the mirror aluminum plate are high. Therefore, the mirror-surface aluminum plate is difficult to manufacture by adopting the traditional aluminum plate manufacturing mode, and the problems of complex manufacturing method and high cost exist.
Disclosure of Invention
The invention provides a manufacturing method of a mirror-surface aluminum plate, aiming at solving the problems of complexity and high cost of the existing manufacturing method of the mirror-surface aluminum plate.
A manufacturing method of a mirror aluminum plate comprises the following steps:
preprocessing a mirror aluminum substrate, a PP sheet and a substrate, laminating the preprocessed substrate, the PP sheet and the mirror aluminum substrate in sequence, then pressing, and then sequentially carrying out molding and post-processing;
the substrate pretreatment comprises the following steps in sequence: cutting, drilling, outer layer patterning, external inspection, solder prevention, silver melting and groove routing;
routing the PP sheet and the substrate to expose the upper surface of the mirror aluminum substrate after pressing to form a mounting groove, wherein the mirror surface arranged on the mirror aluminum substrate is positioned on the upper surface;
and the solder mask performs solder mask on the other surface of the substrate relative to the PP sheet.
Optionally, the PP sheet is bonded with the mirror aluminum substrate and the substrate through the AD glue, and then pressed after bonding.
Optionally, after the substrate, the PP sheet and the mirror aluminum substrate are bonded, the substrate, the PP sheet and the mirror aluminum substrate are further fixed through a hot pressing roller, and finally, pressing is performed.
Optionally, after the substrate, the PP sheet and the mirror-surface aluminum substrate are bonded, the substrate, the PP sheet and the mirror-surface aluminum substrate are further fixed by rivets, and finally, pressing is performed.
Optionally, the PP sheet pretreatment includes the following steps: cutting the PP sheet, sequentially drilling, routing and dispergating the PP sheet after cutting, and drilling the PP sheet corresponding to the position of the drilled substrate to form a rivet hole and a counterpoint hole.
Optionally, the mirror aluminum substrate pretreatment includes the following steps: cutting the mirror surface aluminum substrate, drilling after cutting, wherein the drilling of the mirror surface aluminum substrate corresponds to the drilling position of the substrate, and before drilling, the expansion and contraction coefficients of the substrate and the mirror surface aluminum substrate are ensured to be consistent.
Optionally, after the silver is dissolved, the silver dissolved area on the substrate is stuck with adhesive tape.
Optionally, after the pressing, the area of the mirror-surface aluminum substrate exposed outside is pasted with adhesive tape.
Optionally, the substrate is made of a BT plate.
Compared with the prior art, the invention has the beneficial effects that: the manufacturing method of the mirror aluminum plate provided by the invention is simple in integral method, low in cost and suitable for batch production, the prepared mirror aluminum plate has a good light reflection effect, the using effect of an LED lamp product can be improved, the product quality is good, the machining process is easy to control, and the machining precision of the mirror aluminum plate is favorably improved.
Drawings
FIG. 1 is a schematic structural diagram of a mirror aluminum plate according to an embodiment of the present invention;
Detailed Description
In order to explain the technical solution of the present invention in detail, the technical solution of the embodiment of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Referring to fig. 1, a method for manufacturing a mirror aluminum plate includes the following steps:
pretreating a mirror aluminum substrate 1, a PP sheet 2 and a substrate 3;
the pre-treatment of the substrate 3 comprises the following steps in sequence: cutting, drilling, outer layer patterning, external inspection, solder prevention, silver melting and groove routing; the other surface of the substrate 3 with respect to the PP sheet 2 is solder-masked. The quality of the substrate is ensured by external inspection, and the substrate 3 which is unqualified by external inspection does not need to be subjected to subsequent pressing process.
The PP sheet 2 pretreatment comprises the following steps: cutting the PP sheet 2, sequentially drilling, routing and dispergating the PP sheet 2 after cutting, and drilling the PP sheet 2 corresponding to the position of the drilled hole of the substrate 3 to form a rivet hole and an alignment hole.
The pretreatment of the mirror aluminum substrate 1 comprises the following steps: cutting the mirror surface aluminum substrate 1, drilling after cutting, wherein the drilling of the mirror surface aluminum substrate 1 corresponds to the drilling position of the substrate 3, and before drilling, the expansion and contraction coefficients of the substrate 3 and the mirror surface aluminum substrate 1 are ensured to be consistent.
The base plate 3, the PP sheet 2 and the mirror surface aluminum base plate 1 are respectively cut to ensure consistent sizes, the base plate 3, the PP sheet 2 and the mirror surface base plate 1 are respectively drilled, and the positions of the drilled holes are corresponding to form a rivet hole and an alignment hole, so that the riveting die is convenient to fix during subsequent plate stacking. The mirror aluminum substrate 1 and the substrate 3 can be drilled using the same drill tape. In some embodiments, the bore is formed to have a bore diameter of 1.55 mm.
Routing the PP sheet 2 and the substrate 3 to expose the upper surface of the mirror aluminum substrate 1 after pressing to form a mounting groove 5, wherein the mirror surface arranged on the mirror aluminum substrate 1 is positioned on the upper surface;
laminating the pretreated substrate 3, the PP sheet 2 and the mirror surface aluminum substrate 2 in sequence, then pressing, and then sequentially carrying out molding and post-processing; in some embodiments, the substrate 3 is a BT plate.
The degumming of the PP sheet 2 refers to: AD glue is arranged on two sides of the PP sheet 2, and the paper layer on the surface of the AD glue is torn off, so that the two sides of the PP sheet have viscosity. Before the mirror aluminum substrate 3, the PP sheet 2 and the substrate 1 are pressed, the three are pre-fixed in the laminating process, and the pre-fixing mainly comprises the following steps:
(1) in some embodiments, the PP sheet 2 is bonded to the mirror-like aluminum substrate 1 and the substrate 3 by an AD adhesive, and then pressed.
(2) In some embodiments, the substrate 3, the PP sheet 2 and the mirror aluminum substrate 1 are bonded by an AD adhesive, further fixed by a hot-press roller, and finally pressed.
(3) In some embodiments, after the substrate 3, the PP sheet 2 and the mirror-surface aluminum substrate 1 are bonded, they are further fixed by rivets, and finally pressed.
In some embodiments, after silver melting, the silver melting area on the substrate 3 is pasted by adhesive paper, so that the silver melting area in the subsequent process is prevented from being scratched; after the pressing, the exposed area of the mirror surface aluminum substrate 1 is stuck by the adhesive tape, so that the exposed area of the mirror surface aluminum substrate is prevented from being scratched in the subsequent post-process, and the adhesive tape is made of high-temperature adhesive tape.
Tests prove that the reflectivity of the finished product prepared from the mirror aluminum substrate with the reflectivity of 96-99% is more than 95%.
The manufacturing method of the mirror aluminum plate provided by the invention is simple in integral method, low in cost and suitable for batch production, the prepared mirror aluminum plate has a good light reflection effect, the using effect of an LED lamp product can be improved, the product quality is good, the machining process is easy to control, and the machining precision of the mirror aluminum plate is favorably improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A manufacturing method of a mirror aluminum plate is characterized by comprising the following steps: the method comprises the following steps:
pretreating a mirror aluminum substrate (1), a PP sheet (2) and a substrate (3), laminating the pretreated substrate (3), the PP sheet (2) and the mirror aluminum substrate (1) in sequence, then laminating, and then sequentially molding and post-processing;
the pretreatment of the substrate (3) comprises the following steps in sequence: cutting, drilling, outer layer patterning, external inspection, solder prevention, silver melting and groove routing;
routing grooves on the PP sheet (2) and the substrate (1) to expose the upper surface of the mirror aluminum substrate (1) after pressing to form a mounting groove (5), wherein the mirror surface arranged on the mirror aluminum substrate (1) is positioned on the upper surface;
and the other surface of the substrate (3) opposite to the PP sheet (2) is subjected to solder mask.
2. The method for manufacturing a mirror aluminum plate according to claim 1, wherein: the PP sheet (2) is bonded with the mirror aluminum substrate (3) and the substrate (1) through AD glue, and then pressed.
3. The method for manufacturing a mirror aluminum plate according to claim 2, wherein: and after the substrate (3), the PP sheet (2) and the mirror aluminum substrate (1) are bonded, the mirror aluminum substrate is further fixed through a hot-pressing roller, and finally, pressing is carried out.
4. The method for manufacturing a mirror aluminum plate according to claim 2 or 3, wherein: and after the substrate (3), the PP sheet (2) and the mirror surface aluminum substrate (1) are bonded, the mirror surface aluminum substrate is further fixed through rivets, and finally, pressing is carried out.
5. The method for manufacturing a mirror aluminum plate according to claim 1, wherein: the PP sheet (2) pretreatment comprises the following steps: cutting the PP sheet (2), sequentially drilling, grooving and debonding the PP sheet (2) after cutting, and drilling the PP sheet (2) to correspond to the position of the drilled hole of the substrate (1) to form a rivet hole and a counterpoint hole.
6. The method for manufacturing a mirror aluminum plate according to claim 1, wherein: the mirror aluminum substrate (3) pretreatment comprises the following steps: cutting the mirror surface aluminum substrate (3), drilling after cutting, wherein the drilling of the mirror surface aluminum substrate (3) corresponds to the drilling position of the substrate (1), and before drilling, the expansion and contraction coefficients of the substrate (1) and the mirror surface aluminum substrate (3) are ensured to be consistent.
7. The method for manufacturing a mirror aluminum plate according to claim 1, wherein: after the silver is dissolved, the silver dissolved area on the substrate (3) is stuck by adhesive tape.
8. The method for manufacturing a mirror aluminum plate according to claim 1, wherein: and after the pressing, sticking the exposed area of the mirror surface aluminum substrate (1) with adhesive tape.
9. The method for manufacturing a mirror aluminum plate according to claim 1, 2 or 6, wherein: the substrate (3) is made of a BT plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922730.2A CN112203420A (en) | 2020-09-04 | 2020-09-04 | Manufacturing method of mirror-surface aluminum plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922730.2A CN112203420A (en) | 2020-09-04 | 2020-09-04 | Manufacturing method of mirror-surface aluminum plate |
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| Publication Number | Publication Date |
|---|---|
| CN112203420A true CN112203420A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010922730.2A Pending CN112203420A (en) | 2020-09-04 | 2020-09-04 | Manufacturing method of mirror-surface aluminum plate |
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| CN (1) | CN112203420A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012074527A (en) * | 2010-09-28 | 2012-04-12 | Sanyo Electric Co Ltd | Substrate for led mounting and led backlight provided with the same |
| CN102781172A (en) * | 2012-07-24 | 2012-11-14 | 广东达进电子科技有限公司 | Production method for mirror-surface aluminum base board |
| CN111491440A (en) * | 2020-04-20 | 2020-08-04 | 四会富仕电子科技股份有限公司 | Novel copper-based mirror aluminum composite substrate and production method thereof |
-
2020
- 2020-09-04 CN CN202010922730.2A patent/CN112203420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012074527A (en) * | 2010-09-28 | 2012-04-12 | Sanyo Electric Co Ltd | Substrate for led mounting and led backlight provided with the same |
| CN102781172A (en) * | 2012-07-24 | 2012-11-14 | 广东达进电子科技有限公司 | Production method for mirror-surface aluminum base board |
| CN111491440A (en) * | 2020-04-20 | 2020-08-04 | 四会富仕电子科技股份有限公司 | Novel copper-based mirror aluminum composite substrate and production method thereof |
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