CN212621184U - Low-cost device for testing temperature uniformity of press - Google Patents
Low-cost device for testing temperature uniformity of press Download PDFInfo
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- CN212621184U CN212621184U CN202021239044.7U CN202021239044U CN212621184U CN 212621184 U CN212621184 U CN 212621184U CN 202021239044 U CN202021239044 U CN 202021239044U CN 212621184 U CN212621184 U CN 212621184U
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- kraft paper
- paper board
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Abstract
The utility model discloses a device for testing the temperature uniformity of a press at low cost, which comprises a lower-layer kraft paper board, an upper-layer kraft paper board and five material temperature line heads, wherein the upper-layer kraft paper board is superposed and fixed on the upper surface of the lower-layer kraft paper board; the five material temperature line heads are all fixed on the upper surface of the lower kraft paper board through heat-resistant adhesive tapes and clamped between the lower kraft paper board and the upper kraft paper board, wherein the four material temperature line heads are distributed at four corners close to the lower kraft paper board, and the distance from the four material temperature line heads to the board edges is A; the other material temperature line head is positioned close to the middle of the lower kraft paper board and is separated from the board edges by the distances B and C. Through two-layer kraft paper board about adopting to the cooperation sets up a plurality of material temperature line heads, each material temperature line head pastes through heat-resisting sticky tape and glues, makes it possess the function of inspection press temperature homogeneity, compares the test mode in the original technique, the utility model discloses the detection effect of device is more comprehensive, and the cost is lower, is worth using widely.
Description
Technical Field
The utility model relates to a PCB production is with press field technique, especially indicates a device of low-cost test press temperature homogeneity.
Background
A press is an apparatus for laminating prepreg base materials. The press temperature uniformity generally refers to the temperature uniformity of a hot plate, which directly affects the temperature deviation acting on different areas of the same prepreg substrate. When the temperature uniformity of the press is not good, the temperatures of different areas on the prepreg are not uniform, and the reliabilities of different areas of the same PCB, such as color difference, white spots, holes and the like after lamination are abnormal.
At present, the method for detecting the temperature uniformity of the press in the PCB industry generally comprises the following steps: special tinplate test was used. During testing, 3 tinplate sheets are simultaneously placed in a press for testing, the temperature of the press plate is observed to reach 210 ℃, the measurement is started after the constant temperature is stable, 10 points are taken, the temperature is recorded every two minutes, and whether the R value is within the standard or not is confirmed. Its advantages are high effect, high cost and high effect.
Therefore, new technical solutions need to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a device for testing the temperature uniformity of a press at low cost, which can solve the problems of limitation and high cost of the temperature uniformity of a hot plate of a press in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low-cost device for testing temperature uniformity of a press comprises a lower-layer kraft paper board, an upper-layer kraft paper board and five material temperature line heads, wherein the upper-layer kraft paper board is fixed on the upper surface of the lower-layer kraft paper board in an overlapped mode; the five material temperature line heads are all fixed on the upper surface of the lower kraft paper board through heat-resistant adhesive tapes and clamped between the lower kraft paper board and the upper kraft paper board, wherein the four material temperature line heads are distributed at four corners close to the lower kraft paper board, the distance from the four corners to the board edges is A, and A is 4-5 in; the other material temperature line head is positioned close to the middle of the lower kraft paper board, and the distance between the other material temperature line head and the board edge is B and C, wherein B is 21-23in, and C is 24-26 in; and each material temperature line head is connected with a material temperature joint through a corresponding material temperature line, and the material temperature joint is positioned outside the lower-layer kraft paper board and the upper-layer kraft paper board.
As a preferred scheme, the lower-layer kraft paper board and the upper-layer kraft paper board, and the material temperature line and the lower-layer kraft paper board are also fixed by heat-resistant adhesive tapes.
Preferably, the lower kraft paper board and the upper kraft paper board are both used and discarded kraft paper boards.
Preferably, the material temperature lines are arranged on the same side of the lower kraft liner.
As a preferred scheme, the lower kraft paper board layer is two layers which are overlapped up and down, and the upper kraft paper board layer is also two layers which are overlapped up and down.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
through two-layer kraft paper board about adopting to the cooperation sets up a plurality of material temperature line heads, each material temperature line head pastes through heat-resisting sticky tape and glues, makes it possess the function of inspection press temperature homogeneity, compares the test mode in the original technique, the utility model discloses the detection effect of device is more comprehensive, and the cost is lower, is worth using widely.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a device according to a preferred embodiment of the present invention.
The attached drawings indicate the following:
10. lower kraft paper board 20, upper kraft paper board
31. Material temperature line head 32 and material temperature line
33. Material temperature joint 41 and heat-resistant adhesive tape
50. And (7) heating the disc.
Detailed Description
Referring to fig. 1, a specific structure of a low-cost apparatus for testing temperature uniformity of a press according to a preferred embodiment of the present invention is shown, which includes a lower kraft liner 10, an upper kraft liner 20, and five material temperature line heads 31.
The upper kraft paper board 20 is fixed on the upper surface of the lower kraft paper board 10 in an overlapping manner; lower floor's kraft paper board 10 is upper and lower coincide two-layerly, and this upper strata kraft paper board 20 is also upper and lower coincide two-layerly, is favorable to promoting the precision of test, and, lower floor's kraft paper board 10 and upper kraft paper board 20 are the condemned kraft paper board after having used, are favorable to further reduce cost.
The five material temperature thread ends 31 are all fixed on the upper surface of the lower kraft paper board 10 through heat-resistant adhesive tapes 41 and clamped between the lower kraft paper board 10 and the upper kraft paper board 20, wherein the four material temperature thread ends 31 are distributed at four corners close to the lower kraft paper board 10, the distance from the board edges is A, and the A is 4-5 in; the other material temperature line head 31 is positioned at the middle position of the lower kraft paper board 10, and the distance from the board edge is B and C, wherein B is 21-23in, and C is 24-26 in; and each material temperature wire head 31 is connected with a material temperature joint 33 through a corresponding material temperature wire 32, and the material temperature joint 33 is positioned outside the lower kraft paper board 10 and the upper kraft paper board 20. In this embodiment, the lower kraft liner 10 and the upper kraft liner 20, and the material temperature line 32 and the lower kraft liner 10 are also fixed by a heat-resistant tape (not shown), and the material temperature line 32 is arranged on the same side of the lower kraft liner 10.
The utility model also discloses a method of low-cost test press temperature homogeneity adopts aforementioned device of low-cost test press temperature homogeneity, carries out the naked pressure with it on the hot dish 50 of press to connect 33 display device (not shown in the figure) with material temperature, later through seeing press board temperature and beginning measuring after reaching 210 ℃ constant temperature and stabilizing, get 10 every two minutes record temperature of point and confirm that the R value is in the standard or not.
The utility model discloses a design focus lies in: through two-layer kraft paper board about adopting to the cooperation sets up a plurality of material temperature line heads, each material temperature line head pastes through heat-resisting sticky tape and glues, makes it possess the function of inspection press temperature homogeneity, compares the test mode in the original technique, the utility model discloses the detection effect of device is more comprehensive, and the cost is lower, is worth using widely.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a device of low-cost test press temperature homogeneity which characterized in that: the upper-layer kraft board is fixed on the upper surface of the lower-layer kraft board in an overlapped manner; the five material temperature line heads are all fixed on the upper surface of the lower kraft paper board through heat-resistant adhesive tapes and clamped between the lower kraft paper board and the upper kraft paper board, wherein the four material temperature line heads are distributed at four corners close to the lower kraft paper board, the distance from the four corners to the board edges is A, and A is 4-5 in; the other material temperature line head is positioned close to the middle of the lower kraft paper board, and the distance between the other material temperature line head and the board edge is B and C, wherein B is 21-23in, and C is 24-26 in; and each material temperature line head is connected with a material temperature joint through a corresponding material temperature line, and the material temperature joint is positioned outside the lower-layer kraft paper board and the upper-layer kraft paper board.
2. The apparatus for testing the temperature uniformity of a press at low cost according to claim 1, wherein: and the lower-layer kraft paper board and the upper-layer kraft paper board and the material temperature line and the lower-layer kraft paper board are also fixedly adhered by heat-resistant adhesive tapes.
3. The apparatus for testing the temperature uniformity of a press at low cost according to claim 1, wherein: the lower-layer kraft paper board and the upper-layer kraft paper board are both used scrapped kraft paper boards.
4. The apparatus for testing the temperature uniformity of a press at low cost according to claim 1, wherein: the material temperature lines are arranged on the same side of the lower kraft paper board.
5. The apparatus for testing the temperature uniformity of a press at low cost according to claim 1, wherein: the lower kraft paper board layer is overlapped up and down, and the upper kraft paper board layer is also overlapped up and down.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202021239044.7U CN212621184U (en) | 2020-06-30 | 2020-06-30 | Low-cost device for testing temperature uniformity of press |
Applications Claiming Priority (1)
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CN202021239044.7U CN212621184U (en) | 2020-06-30 | 2020-06-30 | Low-cost device for testing temperature uniformity of press |
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CN212621184U true CN212621184U (en) | 2021-02-26 |
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2020
- 2020-06-30 CN CN202021239044.7U patent/CN212621184U/en active Active
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