Device for testing light aging resistance of plastic material

Abstract

The utility model discloses a device for testing the light aging resistance of a plastic material. The device comprises a control box, a lampshade, a base and a water-cooling radiator, the control box comprises a control box main body, a PLC touch screen, a power switch and a working state indicator lamp; the lampshade is arranged above the base, and a reflecting cover, a temperature sensor and a high-pressure mercury lamp are arranged in the lampshade and are respectively connected with the control box through soft power lines; a plurality of sample fixing clamps are arranged on the base main body, and plastic material samples to be tested can be fixed on the sample fixing clamps; the water-cooling radiator is arranged above the lampshade and comprises a cooling fan and a water inlet and outlet pipe which circularly flows, and the lampshade is cooled and cooled through combination of air cooling and water cooling. The light aging resistance of different plastic materials can be rapidly compared, the material development period is shortened while the test efficiency is improved, the test process is safe, and the test result is accurate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material performance testing device technical field, concretely relates to a kind of plastic material light aging resistance performance testing device. BACKGROUND

[0002] At present, plastic materials are applied more and more widely, and the application environment is also more and more complex. When used outdoors, the light aging resistance, especially the ultraviolet aging resistance, of the material needs to be considered. Therefore, the performance change of the plastic under the influence of ultraviolet radiation needs to be tested and evaluated. The commonly used chemical resistance test method generally tests and compares the samples by placing them in a xenon lamp or carbon arc lamp aging test box. The weather resistance of the material is evaluated by comparing the color and performance changes of the samples before and after aging.

[0003] However, the above-mentioned test method still has the following problems: the test period is very long, usually 500 to 3000 hours, and secondly, the space of the experimental box is limited, and the number of materials that can be tested at one time is limited, resulting in that in the development process, multiple plastic materials need to be tested and compared for multiple rounds, which usually takes half a year or even longer, which is time-consuming and laborious. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a plastic material light aging resistance performance testing device, which can quickly compare the light aging resistance performance of plastic materials and greatly shorten the test period.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A plastic material light aging resistance performance testing device, comprising: a control box, a lampshade, a base and a water-cooled radiator; wherein:

[0007] The control box comprises a control box body, a PLC touch screen, a power switch and a working state indicator light;

[0008] The lampshade is placed above the base, and a reflector, a temperature sensor and a high-pressure mercury lamp are installed in the lampshade; wherein: the temperature sensor and the high-pressure mercury lamp are respectively connected to the control box by flexible power lines, and the light intensity, light time and test temperature in the lampshade are controlled by the PLC touch screen of the controller; the reflector can concentrate the ultraviolet light emitted by the high-pressure mercury lamp on the base;

[0009] A plurality of sample fixing clamps for fixing samples are installed on the base body of the base, and the plastic material samples to be tested can be fixed thereon;

[0010] The water-cooled radiator is arranged above the lampshade, which comprises a cooling fan and circulating flowing inlet and outlet water pipes, and the lampshade is cooled and cooled by the combination of air cooling and water cooling.

[0011] Preferably, the number of high-pressure mercury lamps is one or more, and the power is 1-2 kW.

[0012] Preferably, the lampshade is provided with an air inlet with a flow valve and an air outlet with a one-way air outlet valve, and during testing, the air in the lampshade is replaced by injecting inert gas to eliminate the influence of thermal oxidative aging on the performance of the plastic material.

[0013] Preferably, the connecting part of the base and the lampshade is provided with a silica gel sealing strip and a groove for enhancing the sealing performance.

[0014] Preferably, the base is made of metal material and is internally designed with a waterway, so that cooling water can be introduced to cool the test sample, thereby avoiding the performance degradation of the test sample due to high temperature during testing, and thus affecting the test results.

[0015] Preferably, the base is connected with a movable water circulation cooler to realize the recycling of cooling water and facilitate the movement of the equipment.

[0016] Preferably, the lampshade is a portable lampshade, which is provided with a handle for facilitating operation and movement, and is internally provided with a safety switch, and the base is provided with a protrusion at the corresponding position, so that when the lampshade is correctly placed on the base, the safety switch is lifted to turn on the high-pressure mercury lamp, and when the lampshade is not placed on the base, the high-pressure mercury lamp cannot be turned on, thereby avoiding the misoperation of the ultraviolet rays burning the eyes.

[0017] Preferably, the PLC touch screen of the controller is provided with a temperature upper limit value, and when the temperature in the lampshade exceeds the temperature upper limit value, an alarm is started, and the power is automatically turned off after the temperature upper limit value is continuously exceeded for a period of time, thereby avoiding damage or fire of the high-pressure mercury lamp.

[0018] Preferably, the PLC touch screen of the controller is provided with parameters including the number of lamp tube openings of the high-pressure mercury lamp, the test duration, the interval time and the cycle period.

[0019] Compared with the prior art, the plastic material light aging resistance performance testing device of the utility model can quickly compare the light aging resistance performance of different plastic materials, improve the test efficiency and shorten the material development cycle. In addition, inert gas can be introduced to replace the air during the test process, so as to eliminate the influence of thermal oxidative aging on the performance of the plastic material, and the test result is more accurate. In addition, the lamp tube temperature can be monitored during the test process and timely alarm is given to ensure the safety of the test process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic view of the light aging resistance performance testing device for the plastic material in the embodiment;

[0021] Figure 2 It is the structural schematic view of the water-cooled radiator in the embodiment;

[0022] Figure 3 It is the structural schematic view of the control box in the embodiment;

[0023] The reference signs are as follows: 1, handle; 2, water-cooled radiator; 3, one-way air outlet valve; 4, sample fixing clamp; 5, base body; 6, temperature sensor; 7, high-pressure mercury lamp; 8, base water outlet; 9, base water inlet; 10, safety switch; 11, air inlet valve; 12, reflector; 13, water return port; 14, cooling fan; 15, heat exchanger; 16, water pump water return port; 17, water pump water return regulating valve; 18, water pump; 19, water pump water outlet; 20, water-cooled radiator shell; 21, water-cooled radiator water return port; 22, power switch; 23, working state indicator light; 24, PLC touch screen; 25, control box body. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will be further detailed in combination with the drawings and embodiments. It should be understood that the described embodiments are only used to explain the utility model, and are not used to limit the utility model.

[0025] A light aging resistance performance testing device for plastic material is proposed in the following embodiments, which comprises a control box, a lampshade, a base and a water-cooled radiator. The control box comprises a control box body, a PLC touch screen, a power switch and a working state indicator light. The lampshade is arranged above the base and is provided with a reflector, a temperature sensor and a high-pressure mercury lamp. The temperature sensor and the high-pressure mercury lamp are respectively connected to the control box through flexible power lines, and the light intensity, light time and test temperature in the lampshade are controlled through the PLC touch screen of the controller. The reflector can concentrate the ultraviolet light emitted by the high-pressure mercury lamp on the base. The base body of the base is provided with a plurality of sample fixing clamps for fixing samples, and the plastic material samples to be tested can be fixed thereon. The water-cooled radiator is arranged above the lampshade and comprises a cooling fan and circulating inlet and outlet water pipes, and the lampshade is cooled and cooled through the combination of air cooling and water cooling.

[0026] Embodiment 1

[0027] As Figure 1 , 2As shown in Figure 3, a plastic light aging resistance testing device includes a lamp cover, a base, and a control box. A high-pressure mercury lamp 7 and a temperature sensor 6 are installed inside the lamp cover. The control box 25 is equipped with a PLC touch screen 24, which is connected to the high-pressure mercury lamp 7 and the temperature sensor 6 respectively. The PLC touch screen 24 monitors the test parameters such as the number of lamps turned on, the test duration, the interval time, and the internal temperature of the high-pressure mercury lamp 7. The number of high-pressure mercury lamps 7 is one or more, and the power is 1 to 2 kW. It can quickly compare the light aging resistance of different plastic materials, improve the testing efficiency, and shorten the material development cycle.

[0028] Example 2

[0029] like Figure 1 , 2 As shown in Figure 3, the control box 25 is equipped with a working status indicator light 23, and the PLC touch screen 24 is set with an upper temperature limit. When the temperature inside the lamp cover exceeds the upper temperature limit, an alarm will be triggered. After the temperature exceeds the upper temperature limit for a period of time, the power will be automatically turned off to prevent the high-pressure mercury lamp 7 from being damaged or catching fire.

[0030] Example 3

[0031] like Figure 1 , 2 As shown in Figure 3, the lampshade is a portable lampshade with a handle 1 for easy operation and movement; it contains a safety switch 10, and the base has a corresponding protrusion. When the lampshade is correctly placed on the base, the safety switch 10 is lifted and the high-pressure mercury lamp 7 is turned on; when the lampshade is not placed on the base, the high-pressure mercury lamp 7 cannot be turned on, thus avoiding accidental operation that could cause ultraviolet rays to burn the eyes.

[0032] Example 4

[0033] like Figure 1 , 2 As shown in Figure 3, the base is equipped with multiple sample clamps 4, which are used to fix the samples during testing. The base is made of metal and is connected to a movable water circulation cooler. Cooling water is introduced through the base inlet 9 and the base outlet 8 to cool the sample, realizing the circulation of cooling water, facilitating equipment movement, and preventing the sample performance from deteriorating due to excessively high temperature during testing, thus affecting the test results. The connection between the base and the lamp cover is equipped with a silicone sealing strip and groove to enhance the sealing performance.

[0034] Example 5

[0035] like Figure 1 , 2 As shown in Figure 3, the lampshade is equipped with an air inlet 11 with a flow valve and an air outlet with a one-way air outlet 3. During testing, inert gas is injected to replace the air inside the lampshade, eliminating the influence of thermo-oxidative aging on the performance of the plastic material.

[0036] Embodiment 6

[0037] As shown in Figs. Figure 1 , 2 and 3, the water-cooled radiator can continuously cool the cooling water, adjust the water inlet speed, and thus continuously test.

[0038] In actual application, first, the plastic test piece to be tested is fixed on the sample fixing clamp, then the lampshade is mounted on the base, nitrogen is introduced, and the water-cooled radiator and the base are connected through the water pipe. The test is started by setting the test time and other parameters through the PLC touch screen. After the test is completed, the internal temperature is observed through the controller, and the lampshade is opened when the temperature drops to a safe value. By comparing the mechanical properties, color, appearance, and other properties of the sample before and after the light aging test, the differences in the light aging resistance of different materials are obtained, the test efficiency is improved, and the material development cycle is shortened. In addition, inert gas can be introduced to replace air during the test process to eliminate the influence of thermal oxidative aging on the performance of the plastic material, the test result is more accurate, the lamp tube temperature can be monitored and timely alarm can be given to ensure the safety of the test process.

[0039] The above is the preferred embodiment of the present application, but the present application should not be limited to the content disclosed in the embodiment. Therefore, equivalent or modified versions completed without departing from the spirit of the present application fall within the scope of the present application.

Claims

1. A device for testing the light aging resistance of plastic materials, characterized in that, Includes a control box, lampshade, base, and water-cooled radiator; among which: The control box includes a control box body, a PLC touch screen, a power switch, and working status indicator lights; The lampshade is placed above the base and contains a reflector, a temperature sensor, and a high-pressure mercury lamp. The temperature sensor and the high-pressure mercury lamp are connected to the control box via flexible power cords. The reflector is used to concentrate the ultraviolet light emitted by the high-pressure mercury lamp onto the base. The base body of the base is equipped with several sample fixing clips, on which the plastic material sample to be tested can be fixed. The water-cooled radiator is placed above the lampshade and includes a cooling fan and circulating inlet and outlet water pipes. It dissipates heat and cools the lampshade by combining air cooling and water cooling.

2. The device for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The number of high-pressure mercury lamps is one or more, and the power is 1 to 2 kW.

3. The device for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The lampshade is equipped with an air inlet with a flow valve and an air outlet with a one-way air outlet valve.

4. The device for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The connection between the base and the lampshade is provided with a silicone sealing strip and a groove.

5. The apparatus for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The base is made of metal and is connected to a movable water-circulating cooler. Cooling water is introduced to cool the plastic material sample to be tested.

6. The apparatus for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The lampshade is a portable lampshade with a handle attached.

7. The device for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The lampshade contains a safety switch, and the base has a protrusion at the corresponding position. When the lampshade is correctly placed on the base, the safety switch is lifted, and the high-pressure mercury lamp is turned on; The high-pressure mercury lamp cannot be turned on when the lampshade is not properly placed on the base.

8. The device for testing the light aging resistance of plastic materials according to claim 1, characterized in that, The PLC touchscreen settings of the controller include parameters such as the number of lamps turned on, test duration, interval time, and cycle period of the high-pressure mercury lamp. The PLC touchscreen of the controller is set with an upper temperature limit. An alarm will be triggered when the temperature inside the lampshade exceeds the upper temperature limit.

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