Foam testing device for film removing liquid

Abstract

The utility model discloses a foam testing device for a stripping solution. The foam testing device comprises a device body, a built-in air pump, a transparent graduated cylinder and a bottom replaceable air outlet hole, a built-in air pump is arranged in the device body, and a heating device, a temperature sensing device and a water bath heating device are arranged on the device body; the device body is further provided with an air flow adjusting knob used for adjusting the built-in air pump. A bottom replaceable air outlet is formed in the center of the bottom of the transparent measuring cylinder with the scales. The device is used for measuring the foaming capacity and the stability of liquid, and can effectively reduce the influence of foam on PCB production and improve the product quality and the production efficiency by quantitatively testing and evaluating the foam condition of related liquid medicine in advance.

Description

Technical Field

[0001] This utility model relates to the field of circuit board cleaning, and in particular to a foam testing device for film removal liquid. Background Technology

[0002] In PCB (Printed Circuit Board) manufacturing, the presence of foam can cause various problems, affecting product quality and production efficiency. These include poor cleaning effectiveness, poor soldering, uneven coating, electroplating quality issues, and reduced testing accuracy. Pre-assessing the foam levels in relevant chemicals through quantitative testing can effectively reduce the impact of foam on PCB production, improving both product quality and efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a foam testing device for a film-removing liquid, which is used to determine the foaming ability and stability of the liquid.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a foam testing device for film removal liquid, comprising a device body, a built-in air pump, a transparent graduated cylinder and a replaceable air outlet at the bottom;

[0005] The device body includes a base and a glass tube fixedly connected to the base; a built-in air pump is installed inside the base; the built-in air pump is connected to the air inlet on the base through an air inlet pipe and to the air outlet on the base through an air outlet pipe.

[0006] A heating device and a temperature sensing device are installed on the base of the device body; a water bath heating device is installed on the glass tube of the device body; and a gas flow regulating knob for adjusting the built-in air pump is also provided on the base of the device body.

[0007] The transparent measuring cylinder with scale has a replaceable vent at the center of its bottom; the transparent measuring cylinder with scale is placed inside the device body, and the replaceable vent at the bottom is connected to the vent on the base of the device body.

[0008] Furthermore, the replaceable bottom vent includes a base plate and several vents disposed on the base plate.

[0009] Furthermore, the pore size of the pores is 100-1000 μm.

[0010] Furthermore, the arrangement of the air holes on the replaceable air outlet at the bottom is either circular or linear.

[0011] Furthermore, the transparent graduated cylinder has an air inlet at its bottom; an air duct is provided outside the air inlet; and a replaceable air outlet is installed on the air duct via a slot.

[0012] Furthermore, the air hood is provided with a slot; the side wall of the slot is provided with a claw; the side wall of the bottom replaceable air outlet is provided with a hole; the claw is installed in the space of the side wall of the slot by a telescopic spring; the claw has a conical structure.

[0013] Furthermore, the heating device surrounds the outside of the device body and is used to heat the liquid inside the device.

[0014] The beneficial effects of this utility model are as follows: This utility model is mainly used to determine the foaming ability and stability of liquids. By quantitatively testing and evaluating the foaming situation of relevant chemicals in advance, the impact of foam on PCB production can be effectively reduced, and product quality and production efficiency can be improved. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 Diagram of the bottom vent.

[0018] Figure 3 This is a schematic diagram of another bottom vent.

[0019] Figure 4 This is a schematic diagram of another bottom vent.

[0020] Figure 5 This is a schematic diagram of another bottom vent.

[0021] Figure 6 This is a schematic diagram of a transparent measuring cylinder with scales.

[0022] Figure 7 for Figure 6 A magnified view of A in the middle. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0024] refer to Figures 1-7 This utility model provides a foam testing device for a film removal liquid, comprising a device body 1, a built-in air pump 2, a transparent graduated cylinder 3, and a replaceable air outlet 4 at the bottom.

[0025] The device body 1 of this embodiment includes a base and a glass tube fixedly connected to the base; a built-in air pump 2 is installed inside the base; the built-in air pump 2 is connected to the air inlet on the base through an air inlet pipe and to the air outlet on the base through an air outlet pipe; it is responsible for pumping air into the device.

[0026] In this embodiment, a heating device 5 and a temperature sensing device 6 are installed on the base of the device body 1; a water bath heating device 7 is installed on the glass tube of the device body 1; a gas flow regulating knob 8 for adjusting the built-in air pump is also provided on the base of the device body 1 to adjust the gas flow rate in order to more accurately simulate the generation of foam during the production process. The heating device 5 surrounds the outside of the device body 1 and is used to heat the liquid inside the device.

[0027] In this embodiment, the transparent graduated measuring cylinder 3 is placed vertically inside the device to contain liquid and observe changes in foam height, allowing for accurate reading of these changes. A replaceable bottom vent 4 is located at the center of the bottom of the transparent graduated measuring cylinder 3. The transparent graduated measuring cylinder 3 is placed inside the device body 1, and the replaceable bottom vent 4 is connected to the vent on the base of the device body 1.

[0028] The replaceable air outlet 4 at the bottom includes a base plate 41 and several air holes 42 disposed on the base plate 41. A specially designed air inlet is located at the center of the bottom of the transparent graduated measuring cylinder 3, connected to an air pump, for introducing gas into the transparent graduated measuring cylinder 3 to form foam. To simulate the actual spraying conditions on a production line, the air outlet is designed in various specifications, with an adjustable aperture from 100-1000 μm, and the arrangement of the holes can be circular or linear, etc., which can be adjusted as needed.

[0029] The transparent graduated measuring cylinder 3 has an air inlet 31 at its bottom; an air duct 32 is provided outside the air inlet; and a replaceable bottom air outlet 4 is installed on the air duct via a slot 33.

[0030] A slot 33 is provided on the air duct; a claw 34 is provided on the side wall of the slot 33; a hole 35 is provided on the side wall of the bottom replaceable air outlet 4; the claw 34 is installed in the space of the side wall of the slot 33 by a telescopic spring 36; the claw 34 has a conical structure.

[0031] In this embodiment, the jaw 34 has a conical structure. Under pressure, the jaw of the conical structure is squeezed into the space of the side wall of the slot 33.

[0032] Adjustment options for the bottom vent in this embodiment:

[0033] 1. Pore size: The pore size can be adjusted from 100 micrometers to 1000 micrometers. Smaller pore sizes result in more uniform gas flow, while larger pore sizes lead to uneven gas distribution, which in turn affects foam formation and stability.

[0034] 2. Arrangement: The gas outlets can be arranged in a circular or linear pattern. A circular arrangement helps the gas diffuse evenly throughout the device, while a linear arrangement is used when directional gas flow is required.

[0035] 3. Number of holes: The number of holes can also be adjusted according to experimental needs. More holes mean a larger gas flow area and a faster foam generation rate.

[0036] In this embodiment, the heating device 5 surrounds the outside of the device body 1 and is used to heat the liquid inside the device. It works in conjunction with the temperature sensing device 6 and the water bath heating device 7.

[0037] How to use the testing device in this embodiment:

[0038] 1. Select a suitable vent;

[0039] 2. Adding liquid: Add an appropriate amount of the liquid to be tested to the glass tube. Be careful to control the amount of liquid added to prevent excessive liquid addition and foam overflow.

[0040] 3. Start-up: Plug in the power cord, turn on the power switch, and start introducing gas; observe whether foam is generated in the liquid inside the glass tube, record the maximum height of the foam rise, and the change in foam height over time;

[0041] 4. Stop: After the test is completed, turn off the power switch and unplug the power cord.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A foam testing device for film removal liquid, characterized in that: Includes the device body (1), built-in air pump (2), transparent graduated cylinder (3) and replaceable air outlet at the bottom (4). The device body (1) includes a base and a glass tube fixedly connected to the base; a built-in air pump (2) is installed inside the base; the built-in air pump (2) is connected to the air inlet on the base through an air inlet pipe and to the air outlet on the base through an air outlet pipe. A heating device (5) and a temperature sensing device (6) are provided on the base of the device body (1); a water bath heating device (7) is installed on the glass tube of the device body (1); and a gas flow regulating knob (8) for adjusting the built-in air pump is also provided on the base of the device body (1). The transparent measuring cylinder (3) with scale is provided with a replaceable air outlet (4) at the bottom center position; the transparent measuring cylinder (3) with scale is placed inside the device body (1), and the replaceable air outlet (4) at the bottom is connected to the air outlet on the base of the device body (1).

2. The foam testing device for film removal liquid according to claim 1, characterized in that: The replaceable bottom vent (4) includes a base plate (41) and a plurality of vents (42) provided on the base plate (41).

3. The foam testing device for film removal liquid according to claim 2, characterized in that: The pore size of the pores (42) is 100-1000 μm.

4. The foam testing device for film removal liquid according to claim 2, characterized in that: The bottom replaceable air vent (4) and the upper air vent (42) are arranged in a circular or linear pattern.

5. The foam testing device for film removal liquid according to claim 1, characterized in that: The transparent graduated measuring cylinder (3) has an air inlet at its bottom; an air duct is provided outside the air inlet; and a bottom replaceable air outlet (4) is installed on the air duct via a slot.

6. The foam testing device for film removal liquid according to claim 5, characterized in that: The air hood is provided with a slot; the side wall of the slot is provided with a claw; the side wall of the bottom replaceable air outlet (4) is provided with a hole; the claw is installed in the space of the side wall of the slot by a telescopic spring; the claw is a conical structure.

7. The foam testing device for film removal liquid according to claim 1, characterized in that: The heating device (5) surrounds the outside of the device body (1) and is used to heat the liquid inside the device.

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