A kind of high temperature radioactive source welding method
A welding method and technology of radioactive sources, applied in the field of radioactivity, can solve problems such as substandard welding quality, and achieve the effect of ensuring the success rate of welding, the quality of welding seam, and the stable and reliable welding process specification.
Active Publication Date: 2020-08-21
CHINA INSTITUTE OF ATOMIC ENERGY
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the defects existing in the prior art, the object of the present invention is to provide a welding method for high-temperature radioactive sources, which can at least solve the problem in the prior art that the welding quality of some special radioactive sources is not up to standard due to its own state
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0065] Argon arc welding with high temperature radiation source with thermal power of 50-70W:
[0066] (1) Simulate and measure the temperature field change after the high-temperature radioactive source is installed, and obtain the data of the temperature field changing with time
[0067] The shell of the electric heating simulation heat source adopts the same metal material and structure as the high-temperature radiation source, and the external dimensions are , The heating resistance is nickel-cadmium resistance wire, the resistance value is about 6.5Ω, and it is powered by a DC power supply. The electric analog heat source is connected to the DC power supply, and the output electric power is adjusted to the required thermal power. After standing in the laboratory environment and balanced, the temperature at the joint is measured by infrared to about 500°C.
[0068] After the balance is reached, the electric analog heat source is clamped into the welding mold under the hea...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| electrical resistance | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a high-temperature radiation source welding method. The method comprises the steps that (1) a simulation test is carried out according to temperature changes of a high-temperature radiation source, and process parameters are determined; and (2) the high-temperature radiation source is welded with reference to the process parameters. The method has the following beneficialeffects that the influence of the initial high temperature state of the high-temperature radiation source on the welding process is comprehensively considered, the established welding process specification is more stable and reliable, the welding success rate and weld quality of the high-temperature radiation source can be effectively guaranteed, by adopting the method, welding of the high-temperature radiation source with different thermal powers and different structural forms is completed, and the welding quality meets the corresponding performance requirements.
Description
technical field [0001] The invention relates to the field of radiation, in particular to a high-temperature radiation source welding method. Background technique [0002] In the establishment process of radioactive source welding process, the non-radioactive source core is generally used to replace the radioactive source core to carry out the welding process test in the laboratory for the cladding structure, and the welding process parameters are optimized by analyzing the welding quality to realize the finalization of the process. Finally, the finalization process is applied in the radioactive The radiation source is welded and sealed in the special operation box room. [0003] However, in the current radioactive source welding technology, the state of some special types of radioactive sources has a great influence on the selection of welding process parameters. If conventional welding methods are used for welding, the quality of the welds obtained is often not up to standa...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/00B23K37/00
CPCB23K31/00B23K37/00
Inventor 罗志福罗洪义李鑫酉刘国辉秦少鹏李鑫唐显
Owner CHINA INSTITUTE OF ATOMIC ENERGY