Device for testing acid resistance of glass protection slurry

Abstract

The utility model belongs to a slurry acid resistance testing device, and discloses a device for testing the acid resistance of glass protection slurry, which comprises an acid liquor pool and a clamp frame, the clamp frame is arranged above the acid liquor pool, and a plurality of clamps for clamping samples to be tested are arranged on the clamp frame; wherein the clamp frame is in an inverted U shape and comprises a cross beam and vertical beams connected to the two sides of the cross beam, and the vertical beams are connected to the two sides of the acid liquor pool. The acid resistance testing device can meet testing of glass protection slurry with different degrees of acid resistance, and quantitative testing comparison can be achieved.

Description

Technical Field

[0001] The utility model belongs to a slurry acid resistance testing device, in particular to a device used for testing the acid resistance of glass protection slurry. Background Art

[0002] Electronic components, the cornerstone of technological development, are facing increasing demands for performance from the market and applications, and increasingly stringent requirements for product reliability in diverse environments. As a core protective material for electronic components, glass protective paste is gaining a growing market share. Glass, with its inherently excellent protective properties and high thermal expansion coefficient, is widely used as a protective material in many high-precision products.

[0003] However, in applications such as chip resistors, glass paste must possess strong acid resistance due to the electroplating requirements of the product process. Otherwise, it will lose its protective function during the electroplating process due to poor acid resistance. Conventional laboratories or those following industry standards simply print and sinter the glass protective paste according to a specific pattern, then soak it in acid and test its adhesion using tape. This method cannot be quantitatively evaluated and is subject to interference from many factors, such as the condition of the tape itself, the adhesive and its adhesion, and the force required to tear the tape during testing. Summary of the Invention

[0004] In order to evaluate the acid resistance of glass protection paste more scientifically and accurately, the utility model provides a device for testing the acid resistance of glass protection paste.

[0005] The technical solution of the utility model is as follows:

[0006] A device for testing the acid resistance of glass protective slurry, comprising an acid tank and a fixture frame, wherein the fixture frame is arranged above the acid tank, and the fixture frame is provided with a plurality of fixtures for clamping the sample to be tested;

[0007] The fixture frame is in an inverted "U" shape, including a horizontal beam and vertical beams connected to both sides of the horizontal beam, and the vertical beams are connected to both sides of the acid pool.

[0008] In one embodiment of the present invention, the vertical beams of the fixture frame are connected to both sides of the acid tank via bayonet pins.

[0009] In one embodiment of the present invention, slots are provided on both sides of the acid liquid pool.

[0010] In one embodiment of the present invention, the vertical beam of the fixture frame is a bayonet, which is directly inserted into the bayonet slot and connected to the acid pool.

[0011] In an embodiment of the present utility model, a first beam is provided on the crossbeam of the fixture rack at an angle thereto; taking the crossbeam of the fixture rack as a boundary, second beams are respectively provided on both sides of the first beam, and a plurality of the fixtures are provided along the second beams.

[0012] In an embodiment of the present utility model, the crossbeam of the fixture rack and the first beam are arranged at 90 degrees.

[0013] In an embodiment of the present utility model, the first beam and the first beam are arranged at 90 degrees.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] A device for testing the acid resistance of a glass protection paste according to the present utility model includes an acid liquid pool and a fixture rack. After the glass protection paste to be tested is screen-printed and sintered, it is placed in the fixture, and the alignment buckle is inserted into the card slot of the acid liquid pool. The printed and sintered sample piece to be tested is immersed in the acid liquid in the acid liquid pool. After a specified time, the fixture is lifted, the acid liquid on the test piece is washed off, and then it is dried and weighed. The acid immersion loss of the glass paste under the same conditions can be specifically calculated, so as to infer the acid resistance of the glass protection paste. This acid resistance test device can meet the tests of glass protection pastes with different degrees of acid resistance and achieve quantitative test comparison. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the printing electrode screen plate used in the present utility model;

[0017] Figure 2 is Figure 1 a schematic diagram of the alumina substrate glass protection paste to be tested;

[0018] Figure 3 is a top view of the acid liquid pool 1 of a device for testing the acid resistance of a glass protection paste according to an embodiment of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the fixture rack 2 of a device for testing the acid resistance of a glass protection paste according to an embodiment of the present utility model;

[0020] Figure 5 is a result diagram of the adhesion test of 1#, 2# and 3# glass protection pastes after being soaked in 5% H2SO4 for 1 h using a conventional G9000 tape.

[0021] Markings in the figure: 1 - acid liquid pool, 11 - card slot, 2 - fixture rack, 21 - fixture, 22 - crossbeam, 23 - vertical beam, 24 - first beam, 25 - second beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0023] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0025] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a welding connection; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] As Figures 3 - 4 shown, a device for testing the acid resistance of a glass protection paste in an embodiment of the present utility model includes an acid solution pool 1 and a fixture rack 2. The fixture rack 2 is provided above the acid solution pool 1, and the fixture rack 2 is provided with a plurality of fixtures 21 for clamping the samples to be tested.

[0028] Among them, the fixture rack 2 is in an inverted "U" shape, including a cross beam 22 and vertical beams 23 connected to both sides of the cross beam 22. The vertical beams 23 are connected to both sides of the acid solution pool 1.

[0029] The acid solution tank 1 is used to hold an acidic solution for testing the acid resistance of a sample to be tested. The fixture rack 2 is used to clamp and fix the sample to be tested and place the sample to be tested into the acid solution tank 1 for testing.

[0030] In another embodiment of the present utility model, a connection method of arranging the fixture rack 2 on the acid solution tank 1 is provided. Optionally, the vertical beam 23 of the fixture rack 2 is connected to both sides of the acid solution tank 1 through a snap pin. Those skilled in the art can replace it with other connection methods according to the prior art, such as direct welding, snap fasteners, etc.

[0031] Based on the previous embodiment, taking the snap pin connection as an example, clamping grooves 11 can be respectively provided on both sides of the acid solution tank 1.

[0032] Meanwhile, in an optional manner, the vertical beam 23 of the fixture rack 2 is directly set as a snap pin and directly inserted into the clamping groove 11 to be connected to the acid solution tank 1.

[0033] In another embodiment of the present utility model, the optional setting of the fixture 21 is: a first beam 24 at an angle is provided on the cross beam 22 of the fixture rack 2; taking the cross beam 22 of the fixture rack 2 as a boundary, second beams 25 are respectively provided on both sides of the first beam 24, and a plurality of the fixtures 21 are provided along the second beam 25.

[0034] The cross beam 22 of the fixture rack 2 and the first beam 24 are arranged at 90 degrees.

[0035] The first beam 24 and the second beam 25 are arranged at 90 degrees.

[0036] The method for testing the acid resistance of a glass protection paste sample using the device of the present utility model is as follows:

[0037] 1. Select 50×50×1 mm alumina ceramic substrates, number them one by one, and precisely weigh the weight of the alumina substrates.

[0038] 2. Use Figure 1 a screen printing plate to screen-print different glass protection pastes on 50×50×1 mm alumina ceramic substrates, and dry them at 150 °C for 10 minutes and sinter them in an air chain furnace at 600 °C for 10 minutes to obtain a sintering test piece of the alumina substrate protection paste to be tested as shown in Figure 2 the figure.

[0039] 3. According to the numbers of the sintering test pieces of the alumina substrate protection paste, precisely weigh the weight of the substrates one by one, so as to know the weight of the initial glass protection paste fired samples of the substrates.

[0040] 4. Clamp the piece to be tested onto the fixture 21; insert the fixture frame 2 into the slot 11 of the acid tank 1 via the latch pin, ensuring that the glass protective paste sample on the tested alumina substrate can be fully immersed in the 5% H2SO4 acid solution, and record the time;

[0041] 5. After waiting for the specified time, remove the fixture 21 from the acid tank 1 and rinse it with deionized water. Then, dry the aluminum oxide substrate test pieces with different numbers at 120°C for 5 minutes and accurately weigh them one by one according to their numbers.

[0042] 6. The acid loss of the glass protective paste can be effectively calculated based on the weight loss, so that the acid resistance of the glass protective paste can be accurately judged.

[0043] Implementation Case 1

[0044] 1#, 2# and 3# glass protective pastes were soaked in 5% H2SO4 using conventional methods. After 1 hour, adhesion tests were performed using conventional G9000 tape. It is difficult to judge the acid resistance of the glass protective paste based on the images. Figure 5 shown.

[0045] The same sample glass protective paste was tested using the device of the present invention according to the aforementioned method. The acid resistance test results are shown in Table 1 below:

[0046] Table 1

[0047]

[0048] According to the data, the acid resistance of glass protective paste can be accurately judged according to acid damage: 2#>1#>3#.

[0049] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the acid resistance of glass protective paste, characterized in that: It includes an acid pool and a clamp frame, wherein the clamp frame is arranged above the acid pool, and the clamp frame is provided with a plurality of clamps for clamping the sample to be tested; The fixture frame is in an inverted "U" shape, including a horizontal beam and vertical beams connected to both sides of the horizontal beam, and the vertical beams are connected to both sides of the acid pool.

2. The device for testing the acid resistance of glass protective paste according to claim 1, characterized in that: The vertical beams of the fixture frame are connected to both sides of the acid pool through bayonet pins.

3. The device for testing the acid resistance of glass protective paste according to claim 2, characterized in that: Both sides of the acid pool are respectively provided with card slots.

4. The device for testing the acid resistance of glass protective paste according to claim 3, characterized in that: The vertical beam of the clamp frame is a bayonet pin, which is directly inserted into the bayonet slot and connected to the acid pool.

5. The device for testing the acid resistance of glass protective paste according to claim 1, characterized in that: The crossbeam of the clamp frame is provided with a first beam which is at an angle thereto; with the crossbeam of the clamp frame as a boundary, second beams are provided on both sides of the first beam respectively, and a plurality of the clamps are provided along the second beams.

6. The device for testing the acid resistance of glass protective paste according to claim 5, characterized in that: The crossbeam of the fixture frame is arranged at 90 degrees to the first beam.

7. The device for testing the acid resistance of glass protective paste according to claim 5, characterized in that: The first beams are arranged at 90 degrees to each other.

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