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Quartz tube device for detection of vacuum glass vacuum degree and detection method thereof

A technology of vacuum glass and quartz tube, which is applied in the direction of vacuum gauges that measure medium pressure by measuring the change of medium thermal conductivity, etc., which can solve the problems of long time, high cost, difficult operation, etc., and save time and energy The effect of energy costs

Pending Publication Date: 2017-12-08
CAIHONG GRP ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current method of testing the vacuum degree is to heat the upper glass first, and conduct the heat to the lower glass through the thin air between the two glasses. When the temperature of the two glasses is equal, record the time spent, and use this time to estimate the two glasses. The value of the vacuum degree between glasses, this method takes about 5 hours, the time is long, and the cost is high; other detection methods include photoelastic method and dynamic method, but due to the high requirements for equipment, personnel and environment, in the actual production process Moderately difficult to operate

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  • Quartz tube device for detection of vacuum glass vacuum degree and detection method thereof
  • Quartz tube device for detection of vacuum glass vacuum degree and detection method thereof

Examples

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Embodiment 1

[0021] Such as figure 1 As shown, a quartz tube device for detecting the vacuum degree of vacuum glass includes a cylindrical quartz tube 1 with an open end. The outer diameter of the quartz tube 1 is 3 mm, the inner diameter is 1.82 mm, and the length is 70 mm. There is a steel wire 4 that can move freely. The steel wire 4 is 5 mm long and 1.80 mm in diameter. There are scale lines marking the vacuum degree value sintered at high temperature on the outer surface of the quartz tube 1. The scale lines are divided into three groups. The first group of scale lines 5 One is set at 5.4mm from the bottom of the tube; the second group of scale lines 3 has three lines, which are set at intervals of 1mm between 28.6 and 31.6mm from the bottom of the tube; the third set of scale lines 2 has four lines, which are set at intervals of 1mm Between 56.0 and 60.0mm from the bottom of the tube.

[0022] A method for detecting the vacuum degree of vacuum glass by utilizing a quartz tube device...

Embodiment 2

[0027] Such as figure 1 As shown, a quartz tube device for detecting the vacuum degree of vacuum glass includes a cylindrical quartz tube 1 with an open end. The outer diameter of the quartz tube 1 is 3 mm, the inner diameter is 1.83 mm, and the length is 75 mm. There is a steel wire 4 that can move freely. The steel wire 4 is 5 mm long and 1.81 mm in diameter. There are scale lines marking the vacuum degree value sintered at high temperature on the outer surface of the quartz tube 1. The scale lines are divided into three groups. The first group of scale lines 5 There is one line, which is set at 5.4mm from the bottom of the tube; the second group of scale lines 3 has three lines, which are set at intervals of 1 mm between 29.5 and 32.5 mm from the bottom of the tube; the third set of line 2 has four lines, which are set at intervals of 1 mm Between 59.5 and 63.5mm from the bottom of the tube.

[0028] A method for detecting the vacuum degree of vacuum glass by utilizing a q...

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Abstract

A quartz tube device for detection of a vacuum glass vacuum degree comprises a cylindrical quartz tube with an opening at one end, the quartz tube is internally provided with a metal wire capable of free movement, and calibration tails with vacuum degree value identification is sintered at the outer surface of the quartz tube at a high temperature. When the quartz tube device is employed to detect the vacuum degree, the quartz tube device is arranged between two pieces of glass, after the sealing of edge gaps of the two pieces of glass is performed, vacuum supply and sealing are performed at the high temperature, and when the temperature is reduced to a room temperature, it is compared whether the position where the metal wire is located is the position of a second set of calibration tails or not so as to determine whether the vacuum degree value accords with the required demands or not. The device is arranged in the vacuum glass in advance, the high temperature when vacuum supply is employed to complete the detection of the vacuum degree, and it is not needed to individually heat glass so as to save a lot of time and energy consumption cost; and moreover, when the vacuum glass comprising the device provided by the invention is used, the vacuum degree value is read at any time, the vacuum glass is not needed to send to a professional institute for detection, and therefore the cost of detection and maintenance can be indirectly saved.

Description

technical field [0001] The invention belongs to the technical field of vacuum glass production and detection, and in particular relates to a quartz tube device for detecting the vacuum degree of vacuum glass and a detection method thereof. Background technique [0002] Vacuum glass is a kind of energy-saving glass, which is currently widely used in passive low-energy buildings, and the degree of vacuum has become one of the important indicators for evaluating the quality of vacuum glass. [0003] The current method of testing the vacuum degree is to heat the upper glass first, and conduct the heat to the lower glass through the thin air between the two glasses. When the temperature of the two glasses is equal, record the time spent, and use this time to estimate the two glasses. The value of the vacuum degree between glasses, this method takes about 5 hours, the time is long, and the cost is high; other detection methods include photoelastic method and dynamic method, but du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L21/10
CPCG01L21/10
Inventor 卢雁鹏
Owner CAIHONG GRP ELECTRONICS CO LTD
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