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A quartz glass capillary filling metal length control packaging process and its auxiliary tooling

A quartz glass and auxiliary tooling technology, applied in metal processing equipment, manufacturing tools, laser welding equipment, etc., can solve the problems of filling metal wire melting, packaging failure, etc., to reduce the melting rate, form beautiful, repeatable strong effect

Active Publication Date: 2017-11-10
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the traditional flame packaging is easy to cause the end of the filling metal wire to melt because the flame action point is closer to the end of the filling metal wire, thereby resulting in failure of the package, and to provide a quartz glass that solves the above problems Glass capillary filled with metal controlled length packaging technology, and provided auxiliary tooling for this technology

Method used

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  • A quartz glass capillary filling metal length control packaging process and its auxiliary tooling

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Experimental program
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Effect test

Embodiment 1

[0040] A quartz glass capillary filled with metal-controlled length packaging technology, using CO 2 Type laser welding machine for the packaging of quartz glass capillary.

[0041] The CO 2 The specific welding parameters of the laser welding machine are as follows:

[0042] Laser power: 600W ~ 900W; focus mode: defocus; focus distance: 5mm ~ 10mm.

[0043] In the packaging process of the quartz glass capillary, high-purity helium is used as a protective gas, and the flow rate of the protective gas is 10 L / min to 15 L / min; the quartz glass capillary and CO 2 The relative rotation speed between the type laser welding machines is 15rpm-25rpm.

Embodiment 2

[0045] This embodiment provides an auxiliary tooling for a quartz glass capillary filled with a metal-controlled length packaging process, and the specific settings are as follows:

[0046] The auxiliary tooling includes a protective gas filling device for filling the quartz glass capillary 1 with a protective gas, a fixing device for fixing the quartz glass capillary 1, and a sample for defining the position of the sample 2 in the quartz glass capillary 1 limit components;

[0047] The fixing device includes an open end fixture connected to the protective gas filling device and makes the quartz glass capillary 1 and the protective gas filling device form a sealed cavity, which is used to fix the closed end of the quartz glass capillary 1 and can move along the quartz glass capillary 1 The closed-end fixture that moves in the direction of the central axis;

[0048] The quartz glass capillary 1 is encapsulated with CO 2 The type laser welding machine is arranged between the o...

Embodiment 3

[0050] The difference between this embodiment and Embodiment 2 is that this embodiment optimizes the specific structural settings of the auxiliary tooling, and the specific settings are as follows:

[0051] The sample limiting assembly includes a magnetic ring 4 located between the open end fixture and the closed end fixture and used to be sleeved on the quartz glass capillary 1 , and a magnetic guide column 5 arranged inside the quartz glass capillary 1 , and a non-magnetically permeable column 3 fixed at one end of the magnetically permeable column 5 .

[0052] The open end fixing member includes a stainless steel sleeve 11 whose end communicates with the protective gas filling device through a valve conversion joint 15, and a three-jaw chuck 14 that is fixedly sleeved on the stainless steel sleeve 11, sleeved on the stainless steel sleeve 11 and The conversion column 12 fixed with the three-jaw chuck 14, the first sealing ring 13 arranged at the other end of the stainless s...

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Abstract

The invention discloses a quartz glass capillary inner filling metal length control packaging process and its auxiliary tooling. Melting, which in turn leads to the problem of package failure. The encapsulation process of the present invention comprises adopting CO2 type laser welding machine to carry out the encapsulation of quartz glass capillary; The specific welding parameters of described CO2 type laser welding machine are: laser power: 600W~900W; Focus form: defocus; Focus distance: 5mm~ 10mm; Relative rotation speed: 15rpm~25rpm. The invention has the characteristics of greatly shortening the packaging length of the detector, effectively controlling the packaged size within 20 mm, strong repeatability of the packaging method and process, and the like.

Description

technical field [0001] The invention relates to a packaging process, in particular to a quartz glass capillary filling metal-controlled length packaging process, and provides auxiliary tooling for the process. Background technique [0002] The radiation monitoring tube is an important part for monitoring the radiation effect of materials on the reactor pressure vessel during the life of the nuclear reactor. It is necessary to obtain the radiation environment data of the reactor pressure vessel, the degree of embrittlement of the material and its development trend, and to evaluate the integrity of the reactor pressure vessel. It is of great significance to revise the operating parameters of the reactor and finally ensure the safe operation of the reactor. [0003] In order to truly and effectively measure the temperature and neutron dose monitoring results during the operation of the reactor pressure vessel, it is necessary to involve temperature and dose detectors with diffe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/206B23K26/702B23K2103/54
Inventor 王泽明陶海燕王世忠王浩邱绍宇何祖娟兰光友
Owner NUCLEAR POWER INSTITUTE OF CHINA
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