On-line detection method and device for vacuum glass airtightness
A vacuum glass and detection method technology, which is applied in the application of light to test fluid tightness, etc., can solve the problems of long detection time, complicated detection equipment, and inability to use, and achieve the effects of simple detection method, reduced production cost, and simple equipment
Active Publication Date: 2011-12-21
洛阳兰迪真空玻璃科技有限公司
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Problems solved by technology
The sealing quality of the vacuum glass directly affects the vacuum degree in the vacuum glass. If the vacuum glass is not well sealed during the production process, the vacuum degree of the vacuum glass will be reduced, and the vacuum glass will lose its proper function and cannot be used.
At present, the heat flow method is generally used to detect the sealing performance of vacuum glass. Although the heat insulation of vacuum glass can be accurately detected to judge the sealing performance, due to the long detection time and the complicated detection equipment required, it is only suitable for laboratories. The test cannot meet the continuous detection of large quantities of vacuum glass, so it is not suitable for use in the vacuum glass production line
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[0017] The vacuum glass airtightness on-line detection device of the present invention is described below in conjunction with accompanying drawing:
[0018] Such as figure 1 As shown, the vacuum glass airtightness online detection device of the present invention includes an infrared heater 2, a sensor 3 and a computer 4, and the infrared heater 2 is used to apply an infrared light source with a fixed wavelength to one side of the vacuum glass 1. The wavelength of the infrared light source is It is a medium wave with a wavelength range of 1.5-6 μm. The sensor 3 is set on the other side of the vacuum glass 1 to detect the temperature signal of the vacuum glass 1 and transmit the temperature signal to the computer 4; Calculate the temperature rise change of the vacuum glass 1 based on the obtained temperature, and compare the temperature rise change with the standard threshold value of the vacuum degree stored to determine whether the vacuum degree of the vacuum glass 1 meets the...
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Abstract
The invention discloses a vacuum glass sealing performance on-line detection method and device thereof. The method comprises the following step of: determining if the vacuum glass sealing performance meets standards according to a comparison between a temperature-difference change result of the vacuum glass and an established temperature rise standard threshold value. According to the invention, the vacuum glass vacuum degree on-line detection method has the advantages of simplicity, short detection time, capability of meeting requirements of continuous production of large-batch vacuum glass, and suitability for using on production lines; in addition, the device required by the detection method provided by the invention is simple and has a low price so that the production cost of the vacuum glass can be reduced to a certain extent.
Description
[0001] technical field [0002] The invention relates to a method and a device for on-line detection of the airtightness of vacuum glass. [0003] Background technique [0004] Vacuum glass is to seal the surroundings of two pieces of flat glass and evacuate the gap between them. Since there is a vacuum between the two pieces of glass, the heat insulation and noise prevention performance of vacuum glass is very good. The sealing quality of the vacuum glass directly affects the vacuum degree in the vacuum glass. If the vacuum glass is not well sealed during the production process, the vacuum degree of the vacuum glass will be reduced, and the vacuum glass will lose its proper function and cannot be used. At present, the heat flow method is generally used to detect the sealing performance of vacuum glass. Although the heat insulation of vacuum glass can be accurately detected to judge the sealing performance, due to the long detection time and the complicated detection equipm...
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Inventor 李彦兵
Owner 洛阳兰迪真空玻璃科技有限公司