CN104977239A - Experimental device for accelerating aging of paint - Google Patents

Abstract

An accelerated paint aging experiment device, which is composed of a cylindrical glass box, a sample plate, a detector, a sample hanging plate frame, a variable temperature resistance wire, a power supply control module, a valve, an electric fan, a gas collecting bottle, an ultraviolet lamp, a refrigeration It consists of a device, a humidifier, a sealing cover, a hook, a conduit, a plug with wires, an iron central shaft, a vent pipe and a plug with wires. The cylindrical glass box can prevent the air in the square dead corner from being unable to circulate. By accurately simulating various influencing factors, the weather resistance of the paint under natural conditions and extreme weather is determined. The accelerated paint aging device is easy to operate, has remarkable simulated aging effects and accurate measurement results.

Description

An accelerated paint aging test device

technical field

The invention relates to an accelerated paint aging test device, in particular to a simple and simple simulation device capable of simulating natural conditions and extreme weather and having accurate measurement results. the

Background technique

With the growing prosperity of decoration companies, paint has become an indispensable decorative and protective material. However, the weather resistance of paint has attracted widespread attention, such as acid resistance, alkali resistance, smoke corrosion resistance and Freeze resistance, etc. At present, there are three main methods to study the weather resistance of paint: natural exposure test method, outdoor accelerated aging test method, artificial aging test method, artificial aging test method is often used xenon arc radiation method and ultraviolet light aging test method, natural exposure method It will be seriously affected by the season, and most of the detection devices are square, with large errors. Therefore, it is particularly important to design a measuring device for a laboratory that is easy to operate and has accurate results. the

Contents of the invention

In view of the above problems, the present invention provides an accelerated paint aging experiment device, which is easy to operate, has a remarkable effect of simulating aging, and can simulate various natural climate conditions. the

The technical solution adopted by the present invention to solve the technical problem is: a kind of accelerated paint aging experimental device, which is composed of a cylindrical glass box, a sample plate, a detector, a sample hanging plate frame, a variable temperature resistance wire, a power supply control module, It consists of a valve, an electric fan, a gas cylinder, an ultraviolet lamp, a refrigerator, a humidifier, a sealing cover, a hook, a conduit, an iron central shaft, an air pipe and a plug with wires. The variable temperature resistance wire is laid on the bottom of the cylindrical glass box, the power supply is located at the bottom center of the cylindrical glass box and connected in series with the iron central shaft and the ultraviolet lamp; the electric fan is located between the power supply and the ultraviolet lamp, and is fixed on the iron central shaft. The upper part of the hook passes through the center point of the sealing cover and is sealedly connected with it, and the lower part hangs the sample hanging plate frame so that it is centered and suspended in the cylindrical glass box. The sample plate is suspended on the sample hanging plate rack. The refrigerator is located on the inner wall of the top of the cylindrical glass box, and the humidifier is located on the side opposite to the refrigerator on the inner wall of the top of the cylindrical glass box; The detector is located under the gas collecting bottle and fixed on the inner wall of the cylindrical glass box; the cylindrical glass box has a ventilation pipe under the detector, and a valve is installed on the ventilation pipe. A valve on the vent tube controls the flow of gas in the chamber. With wire plug and power supply control module to obtain external power for the device. the

The beneficial effect of the present invention is that the measuring device is set as a cylinder, so that the internal air circulation is smooth; the sample hanging board is convenient to take out, and multiple groups of sample boards can be hung, which speeds up the test progress; taking into account the temperature, humidity, wind, light As well as the influence of acid rain on the weather resistance of paint, it can simulate a variety of natural conditions and even extreme weather, making the performance measurement results of paint aging more accurate. the

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing. the

Fig. 1 is a structural schematic diagram of the present invention. the

In Figure 1, 1. Cylindrical glass box, 2. Sample plate, 3. Detector, 4. Sample hanging plate rack, 5. Variable temperature resistance wire, 6. Power supply control module, 7. Valve, 8. Electric fan, 9. Gas cylinder, 10. Ultraviolet lamp, 11. Refrigerator, 12. Humidifier, 13. Sealing cover, 14. Hook, 15. Conduit, 16. Iron central shaft, 17. Ventilation pipe, 18. Lead wire plug. the

Detailed ways

In the cylindrical glass box (1), the variable temperature resistance wire (5) is laid on the bottom of the cylindrical glass box (1), and the power supply control module (6) is located at the center of the bottom of the cylindrical glass box (1). The electric fan (8) is located between the power supply (6) and the ultraviolet lamp (10), and is fixed on the iron central shaft (16). The upper part of the hook (14) passes through the center point of the sealing cover (13) and is sealedly connected with it, and the lower part hangs the sample hanging plate holder (4) so that it is centered and suspended in the cylindrical glass box (1). The sample plate (2) is suspended on the sample hanging plate frame (4). The sealing cover (13) is located at the top of the cylindrical glass box (1), and can seal the cylindrical glass box (1). The refrigerator (11) is located on one side of the top inner wall of the cylindrical glass box (1), and the humidifier (12) is located on the opposite side of the top inner wall of the cylindrical glass box (1) to the refrigerator (11). The gas collecting bottle (9) is located below the humidifier (12), fixed on the outer wall of the cylindrical glass box (1), and communicated with the humidifier (12) through a conduit (15). The detector (3) is located below the gas collecting bottle (9) and fixed on the inner wall of the cylindrical glass box (1). Below the detector (3), the cylindrical glass box (1) has a ventilation pipe (17), and the valve (7) on the ventilation pipe (17) can control the gas flow in the box. The power supply control module (6) is connected with a plug (18) with wires to obtain external power for the device. After variable temperature resistance wire (5), electric fan (8), ultraviolet lamp (10), refrigerator (11), humidifier (12) and detector (3) are connected in parallel, they are connected to power supply control module (6). The power of the power supply control module (6) is used to adjust the working intensity of the variable temperature resistance wire (5), the electric fan (8), the ultraviolet lamp (10), the refrigerator (11), the humidifier (12) and the detector (3). the

In actual operation, hang the sample plate (2) on the sample hanging plate holder (4), cover the sealing cover (13), fill the gas collecting bottle (9) with the mixed gas of SO ₂ and NO ₂ , insert Turn on the power supply, the electric fan (8) and the ultraviolet lamp (10) start to run, and adjust the heating degree of the variable temperature resistance wire (5) by changing the power of the power supply control module (6), and the refrigerator (11) and the variable temperature resistance wire (5) The temperature in the box can be controlled alternately. After the gas in the gas collecting bottle (9) enters the humidifier (12), it mixes with water and sprays out to form acid mist in the box. Observe the indicators displayed by the detector (3) and record the data After the measurement, open the valve (7) to discharge the gas in the box.

Claims (1)

1. An accelerated paint aging test device, which is composed of a cylindrical glass box, a sample plate, a detector, a sample hanging plate frame, a variable temperature resistance wire, a power supply control module, a valve, an electric fan, a gas collecting bottle, and an ultraviolet lamp , a refrigerator, a humidifier, a sealing cover, a hook, a conduit, a plug with wires, an iron central shaft, a vent pipe, and a plug with wires. It is characterized in that the variable temperature resistance wire is laid on the bottom of the cylindrical glass box, and the power supply Located at the center of the bottom of the cylindrical glass box and connected in series with the iron central axis and the ultraviolet lamp; the electric fan is located between the power supply and the ultraviolet lamp, and fixed on the iron central axis; the refrigerator is located on the inner wall of the top of the cylindrical glass box, humidifying The device is located on the side opposite to the refrigerator on the inner wall of the top of the cylindrical glass box; the gas collecting bottle is located under the humidifier, fixed on the outer wall of the cylindrical glass box, and communicated with the humidifier through a conduit; the detector is located under the gas collecting bottle and fixed on the cylinder On the inner wall of the shaped glass box; the cylindrical glass box has a ventilation pipe under the detector, and a valve is installed on the ventilation pipe.