Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer

A technology of solar absorptivity and low emissivity, applied in surface reaction electrolytic coatings, coatings, electrolytic coatings, etc., can solve the problems of low solar absorptivity, low bonding force between the film and the substrate, and high emissivity. Simple process, excellent adhesion and thermal stability, easy to achieve results

Active Publication Date: 2015-11-11
HARBIN INST OF TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that existing coatings on the surface of titanium alloy TA2 have low solar absorption rate, high self-emission rate, and low bonding force between the film layer and the substrate, and provide a titanium alloy TA2 surface with high solar absorption Preparation method of low emissivity film layer

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] Specific embodiment one: this embodiment is a kind of preparation method of titanium alloy TA2 surface high solar absorptivity low emissivity film layer is finished according to the following steps:

[0023] 1. Pre-treatment of titanium alloy TA2: use 240-mesh water-grit paper and 1000-mesh water-grit paper to polish titanium alloy TA2 in turn to obtain titanium alloy TA2 with deburr and oxide layer removed; immerse titanium alloy TA2 with deburr and oxide layer into HF and HNO 3 3s~10s in the mixed solution to obtain the titanium alloy TA2 with smooth surface; use NaOH solution to remove the oil on the surface of the titanium alloy TA2 with smooth surface, then wash it with distilled water, and finally dry it with a hair dryer to obtain the treated titanium alloy TA2;

[0024] The NaOH solution described in step 1 is formed by mixing NaOH and distilled water, and the volume ratio of the mass of NaOH to distilled water is (8g~15g):1L;

[0025] HF and HNO as described i...

specific Embodiment approach 2

[0035] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the main film-forming agent described in step 2 is sodium aluminate. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step two, the auxiliary film-forming agent is one of trisodium phosphate, sodium hypophosphite, sodium hexametaphosphate and polyphosphoric acid or a mixture of several of them. Other steps are the same as those in Embodiment 1 or 2.

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Roughnessaaaaaaaaaa
The average diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method for a titanium alloy TA2 surface ceramic film layer, in particular to a preparation method for a titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer, and aims to solve the problems that an existing titanium alloy TA2 surface coating is low in solar absorptivity, high in self emissivity, and low in bonding force of a film layer and a base body. The preparation method comprises the steps that 1, pretreatment is carried out on titanium alloy TA2; 2, micro-arc oxidation is carried out to obtain a titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer. The thickness of the prepared titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer ranges from 0.3 micron to 1 micron, the roughness of the film layer ranges from 0.2 micron to 0.25 micron, solar absorptivity ranges from 0.82 to 0.9, and emissivity ranges from 0.08 to 0.13. The titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer can be obtained through the preparation method.

Description

technical field [0001] The invention relates to a method for preparing a ceramic film layer on the surface of titanium alloy TA2. Background technique [0002] The industrial pure titanium commonly used in industry is TA2, because of its moderate corrosion resistance and comprehensive mechanical properties, low strength, good plasticity, easy processing, stamping, welding, cutting, good performance; in the atmosphere, sea water, wet chlorine gas It has good corrosion resistance in oxidizing, neutral and weakly reducing media, and its oxidation resistance is better than most austenitic stainless steels. Therefore, titanium alloy TA2 is widely used in industry and aerospace. [0003] The energy crisis has drawn people's attention to solar energy as a clean energy source, but the radiation energy density of the sun's radiation after it hits the earth is low, which brings great obstacles to the large-scale utilization of solar energy. Therefore, it is necessary to pass Some way...

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
no application Login to View More
IPC IPC(8): C25D11/26
Inventor 姚忠平魏晗李东琦夏琦兴姜兆华
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com