CN203313529U - Fixture for reducing gumming at edges of aluminum substrate - Google Patents
Fixture for reducing gumming at edges of aluminum substrate Download PDFInfo
- Publication number
- CN203313529U CN203313529U CN2013203372897U CN201320337289U CN203313529U CN 203313529 U CN203313529 U CN 203313529U CN 2013203372897 U CN2013203372897 U CN 2013203372897U CN 201320337289 U CN201320337289 U CN 201320337289U CN 203313529 U CN203313529 U CN 203313529U
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- fixture
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- reducing
- pressing sheet
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Abstract
The utility model discloses a fixture for reducing gumming at the edges of an aluminum substrate, wherein the fixture comprises an upper steel plate and a lower steel plate which are respectively arranged above and below a press plate and edge strips which encircle the periphery of the press plate. The thickness of the edge strips is greater than the thickness of the press plate. According to the utility model, the edge strips which have larger thickness than the press plate are arranged on the periphery of the press plate, and enough press fit space is provided for the edges of the press plate by the supporting effect of the edge strips. Thus, the large gumming problem at the edges of the substrate caused by deformation of the upper and lower steel plates bending downwards is prevented. The fixture provided by the utility model has a simple structure and requires low cost. In addition, scrap edges of the aluminium substrate can be fully utilized. Product quality is raised, and costs are saved.
Description
Technical field
The utility model relates to the fixture field of pressing sheet material, relates in particular to a kind of be used to reducing the fixture of aluminium base edges of boards gummosis.
Background technology
In prior art, aluminium base is when the pressing edges of boards, the problem that gummosis is excessive appears in capital, as shown in Figure 1, the reason of its generation is mainly because by the size of pressing sheet material 300, be less than the size of upper steel plate 100, lower steel plate 200, causes the overhanging portion of upper steel plate 100, lower steel plate 200 at large pressure (>25kg/cm
2) effect under produce slight flexural deformation, under this flexural deformation, the dielectric layer of aluminium base edges of boards is extruded out, its thickness is with respect to the middle thickness of dielectric layers of steel plate and aobvious partially thin (thickness of dielectric layers of 100um of take is example, the edges of boards thickness of dielectric layers can only reach 70-80um, than desired value 20-30um on the low side).
At present, in industry, for two kinds of the most frequently used solutions of edges of boards gummosis problem be:
1, regulate the heat-conducting glue formula, make its pressing mobility step-down; But there are many deficiencies in this method: at first, the heat-conducting glue formula can only be that its developer just has and knows and change the ability of adjusting, and sheet material adds industrial and commercially is inconvenient to adjust; Secondly, reduce heat-conducting glue pressing mobility can cause multi-layer sheet central layer internal layer circuit to fill discontented and the press evenness is low (be generally >=problem of bubble easily appears in press 0.1mm);
2, strengthen sheet material process for pressing limit; Be about to because the partially thin edges of boards of gummosis partly cut, this is the most direct, the simplest method; But this method can cause availability ratio of the armor plate to reduce and the problem of high expensive.
Therefore, prior art has yet to be improved and developed.
The utility model content
In view of above-mentioned the deficiencies in the prior art, it is a kind of be used to reducing the fixture of aluminium base edges of boards gummosis that the purpose of this utility model is to provide, the excessive problem of edges of boards gummosis while being intended to solve in prior art pressing sheet material.
The technical solution of the utility model is as follows:
A kind of be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, described fixture comprises and being separately positioned on by the upper steel plate of pressing sheet material above and below and lower steel plate and around being arranged on by the edge strip of pressing sheet material surrounding, and the thickness of described edge strip is greater than by the thickness of pressing sheet material.
Described be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, the Thickness Ratio of described edge strip is by the large 0.1mm of the thickness of pressing sheet material.
Described wherein, described edge strip is provided with two be used to reducing the fixture of aluminium base edges of boards gummosis, and two edge strips are the L shaped of complementation.
Described be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, the inside edge of described edge strip and had spacing between the outer ledge of pressing sheet material.
Described be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, the inside edge of described edge strip equates with the spacing between outer ledge by pressing sheet material everywhere.
Described be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, the inside edge of described edge strip and be 3mm by the spacing between the outer ledge of pressing sheet material.
Described be used to reducing the fixture of aluminium base edges of boards gummosis, wherein, in the horizontal direction, the spacing at the edge of the outer ledge of described edge strip and upper steel plate or lower steel plate is greater than 15mm.
Beneficial effect: the utility model is by being arranged Thickness Ratio by the large edge strip of pressing sheet material by pressing sheet material surrounding, utilize the supporting role of edge strip to provide enough pressing spaces for the edges of boards by pressing sheet material, thereby prevented that edges of boards from causing gummosis problem bigger than normal because of upper and lower steel plate along lower bending deformation.The utility model is simple in structure, cost is low, can also take full advantage of the aluminium base side crops, when having improved product quality, has saved cost.
The accompanying drawing explanation
Fig. 1 is the structural representation of fixture of the prior art.
Fig. 2 is the utility model be used to the structural representation of the fixture that reduces aluminium base edges of boards gummosis.
Fig. 3 is the structural representation at another visual angle of fixture shown in Figure 2.
Embodiment
It is a kind of be used to reducing the pressing fixture of pressing sheet material edges of boards gummosis that the utility model provides, clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below the utility model further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 2, Fig. 2 is that the utility model is a kind of be used to reducing the fixture of aluminium base edges of boards gummosis, described fixture comprises and being separately positioned on by the upper steel plate 100 of pressing sheet material 300 above and belows and lower steel plate 200 and around being arranged on by the edge strip 400 of pressing sheet material 300 surroundings, and the thickness of described edge strip 400 is greater than by the thickness of pressing sheet material 200.
The utility model utilization is around being arranged on by the edge strip 400 of pressing sheet material 200 surroundings, for the edges of boards by pressing sheet material 200 provide enough large pressing space, and is unlikely to because bending deformation and cause the excessive problem of gummosis under upper and lower steel plate edge.
Further, the Thickness Ratio of described edge strip 400 is by the large 0.1mm of the thickness of pressing sheet material 300.And described edge strip 400 is provided with two, two edge strips 400 are made for to the L shaped of complementation, as shown in Figure 3, only two L shaped edge strips 400 need be placed on to family is got final product by pressing sheet material.
As shown in Figure 3, in the utility model, the inside edge of edge strip 400 and had spacing between the outer ledge of pressing sheet material 300.And, should strictly control the inside edge of edge strip 400 and by the spacing between the outer ledge of pressing sheet material 300, otherwise the situation of decompression or inefficacy easily occur, the utility model preferably everywhere spacing is set to equate everywhere.Further, the inside edge of described edge strip 400 and be 3mm by the spacing between the outer ledge of pressing sheet material 300.
In addition, in the horizontal direction, the spacing at the edge of the outer ledge of described edge strip 400 and upper steel plate 100 or lower steel plate 300 is greater than 15mm.
In the utility model, edge strip can adopt the aluminium sheet side crops to make, to reduce costs, improve simultaneously availability ratio of the armor plate, reduce the cutting edge width, after adopting edge strip of the present utility model, the tolerance of aluminium base edges of boards thickness of dielectric layers and plate intermediate medium layer thickness has been reduced to 15 microns by original 30 microns.
This utility model edge strip fixture, simple for production, with low cost, under the prerequisite that does not affect sheet material pressing quality, greatly improved sheet material pressing gummosis problem, reduced the technique edges width, improved availability ratio of the armor plate.
In sum, the utility model is by being arranged Thickness Ratio by the large edge strip of pressing sheet material by pressing sheet material surrounding, utilize the supporting role of edge strip to provide enough pressing spaces for the edges of boards by pressing sheet material, thereby prevented that edges of boards from causing gummosis problem bigger than normal because of upper and lower steel plate along lower bending deformation.The utility model is simple in structure, cost is low, can also take full advantage of the aluminium base side crops, when having improved product quality, has saved cost.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improve and conversion all should belong to the protection range of the utility model claims.
Claims (7)
1. one kind be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that, described fixture comprises and being separately positioned on by the upper steel plate of pressing sheet material above and below and lower steel plate and around being arranged on by the edge strip of pressing sheet material surrounding, and the thickness of described edge strip is greater than by the thickness of pressing sheet material.
2. according to claim 1ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that, the Thickness Ratio of described edge strip is by the large 0.1mm of the thickness of pressing sheet material.
3. according to claim 1ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that, described edge strip is provided with two, and two edge strips are complementary L shaped.
4. according to claim 1ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that the inside edge of described edge strip and had spacing between the outer ledge of pressing sheet material.
5. according to claim 4ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that, the inside edge of described edge strip equates with the spacing between outer ledge by pressing sheet material everywhere.
6. according to claim 5ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that the inside edge of described edge strip and be 3mm by the spacing between the outer ledge of pressing sheet material.
7. according to claim 1ly be used to reducing the fixture of aluminium base edges of boards gummosis, it is characterized in that, in the horizontal direction, the spacing at the edge of the outer ledge of described edge strip and upper steel plate or lower steel plate is greater than 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203372897U CN203313529U (en) | 2013-06-13 | 2013-06-13 | Fixture for reducing gumming at edges of aluminum substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203372897U CN203313529U (en) | 2013-06-13 | 2013-06-13 | Fixture for reducing gumming at edges of aluminum substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203313529U true CN203313529U (en) | 2013-11-27 |
Family
ID=49619695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203372897U Expired - Fee Related CN203313529U (en) | 2013-06-13 | 2013-06-13 | Fixture for reducing gumming at edges of aluminum substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203313529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225678A (en) * | 2019-07-08 | 2019-09-10 | 深南电路股份有限公司 | Press fit of circuit boards method and Prefabricated substrate |
-
2013
- 2013-06-13 CN CN2013203372897U patent/CN203313529U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225678A (en) * | 2019-07-08 | 2019-09-10 | 深南电路股份有限公司 | Press fit of circuit boards method and Prefabricated substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20210613 |