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Light radiation-resistant high-reflectivity film and preparation method thereof

A technology with high reflectivity and radiation resistance, applied in sputtering coating, metal material coating process, vacuum evaporation coating, etc. Easy to oxidize and other problems, to achieve the effect of reducing radiation heat transfer, avoiding the reduction of reflectivity, and avoiding thermal deformation

Active Publication Date: 2020-11-06
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional reflective layer used is stainless steel foil, the thickness of commonly used stainless steel foil is 0.03mm, and the surface density is 237g / m 2 , the surface is easy to oxidize at high temperature, the reflectivity decreases with the increase of oxidation degree, usually 0.60~0.75, the heat radiation efficiency is low, it is difficult to meet the market demand for the new generation of products with light weight and high thermal insulation performance

Method used

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  • Light radiation-resistant high-reflectivity film and preparation method thereof
  • Light radiation-resistant high-reflectivity film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a light-weight, radiation-resistant, high-reflectivity film, characterized in that:

[0038] a. First open the vacuum chamber, install the membrane material, measure the diameter of the membrane material at the winding and unwinding place, and adjust the tension; then close the vacuum chamber, turn on the power, and check whether the coating drum can work normally; turn on the cooling water switch of the pump group, and turn on Fore-stage pump unit, start vacuuming after 5 minutes, the vacuum degree is less than 5×10 -3 At Pa, prepare for coating; check the temperature of the coating drum and the cryogenic temperature, turn on the cathode cooling water and the pretreatment heater, adjust the tension, and start the coil.

[0039] b. Rotate the metal copper target, adjust the distance between the substrate and the target, the distance between the metal copper target and the substrate is 10cm; feed argon gas, the flow rate of argon gas is 30sccm, cle...

Embodiment 2

[0046] A method for preparing a light-weight, radiation-resistant, high-reflectivity film, characterized in that:

[0047] a. First open the vacuum chamber, install the membrane material, measure the diameter of the membrane material at the winding and unwinding place, and adjust the tension; then close the vacuum chamber, turn on the power, and check whether the coating drum can work normally; turn on the cooling water switch of the pump group, and turn on Fore-stage pump unit, start vacuuming after 5 minutes, the vacuum degree is less than 5×10 -3 At Pa, prepare for coating; check the temperature of the coating drum and the cryogenic temperature, turn on the cathode cooling water and the pretreatment heater, adjust the tension, and start the coil.

[0048] b. Rotate the metal copper target, adjust the distance between the substrate and the target, the distance between the metal copper target and the substrate is 6cm; feed argon, the flow rate of argon is 200sccm, clean the g...

Embodiment 3

[0055] A method for preparing a light-weight, radiation-resistant, high-reflectivity film, characterized in that:

[0056] a. First open the vacuum chamber, install the membrane material, measure the diameter of the membrane material at the winding and unwinding place, and adjust the tension; then close the vacuum chamber, turn on the power, and check whether the coating drum can work normally; turn on the cooling water switch of the pump group, and turn on Fore-stage pump unit, start vacuuming after 5 minutes, the vacuum degree is less than 5×10 -3 At Pa, prepare for coating; check the temperature of the coating drum and the cryogenic temperature, turn on the cathode cooling water and the pretreatment heater, adjust the tension, and start the coil.

[0057] b. Rotate the metal copper target, adjust the distance between the substrate and the target, the distance between the metal copper target and the substrate is 4cm; feed argon gas, the flow rate of argon gas is 500sccm, cle...

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Abstract

The invention provides a light radiation-resistant high-reflectivity film and a preparation method thereof. The light radiation-resistant high-reflectivity film sequentially comprises a protective layer (4), a high-reflectivity layer (3), a transition layer (2), a substrate layer (1), the transition layer (2), the high-reflectivity layer (3) and the protective layer (4) from inside to outside, wherein the substrate layer (1) adopts a polyimide film, the transition layer (2) is made of metal copper, the high-reflectivity layer (3) is made of low-cobalt stainless steel, and the protective layer(4) is made of silicon oxide. The film has low surface density and high reflectivity, meanwhile, the film is good in thermal stability, high in oxidation resistance and long in service life, and the requirements for light weight and high heat preservation performance are effectively met.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a light-weight, radiation-resistant, high-reflectivity film and a preparation method thereof. Background technique [0002] Under normal operating conditions of nuclear power plants, there needs to be a large difference between the temperature of various equipment or pipelines and the external ambient temperature; for example, when the average temperature inside the pipeline is higher than 310°C, the external ambient temperature is generally required to be less than 50 ℃. Therefore, in order to reduce the heat loss of equipment and pipelines in nuclear power plants under normal operating conditions, the outer walls of equipment and pipelines are usually covered with insulation layers. Compared with the non-metallic insulation layer, the metal insulation layer has the characteristics of no obvious aging phenomenon, high temperature resistance and radiation resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/20C23C14/16C23C14/10C23C14/35C23C14/56
CPCC23C14/205C23C14/165C23C14/10C23C14/35C23C14/0036C23C14/562
Inventor 李忠盛董玲抒吴护林孙彩云黄安畏舒露吴永鹏
Owner NO 59 RES INST OF CHINA ORDNANCE IND