Method for preparing graphite high-temperature-resistant composite coating through cooperation of electrochemistry and impregnation
A composite coating, high temperature resistant technology, applied in the field of graphite high temperature coating, can solve the problems such as the inability to meet the anti-oxidation requirements of graphite materials, poor bonding between the coating and the substrate, and insufficient air tightness of the coating, so as to facilitate industrial production and application. , Not easy to fall off, good air tightness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] (1) Select graphite base material, polish the surface and ultrasonically treat it with absolute ethanol. After the surface is dry, put it in an oven and place it at 100°C for 2 hours before use.
[0028] (2) Preparation of matrix suspension: mix silicon carbide 18g / L, alumina 5g / L, aluminum phosphate 8g / L, phenolic resin 10g / L, nano silicon powder 6g / L, graphite powder 3g / L, dodecyl Sodium benzenesulfonate 2g / L, the rest is added to 1L with ethanol, and then ultrasonic treatment is performed for 60 minutes to obtain a matrix suspension.
[0029] (3) Preparation of phosphate coating: weigh 35g aluminum dihydrogen phosphate, 7g sodium hexametaphosphate, 2g nano alumina, 3g silica, 1g sodium dodecylbenzene sulfonate, 52g solvent water, and then perform 60min Ball mill treatment to obtain phosphate coating;
[0030] (4) Fix it with an electrochemical fixture, adjust it and place it in parallel between two high-purity graphite blocks, connect the working electrode, and use the cal...
Embodiment 2
[0036] (1) Select graphite base material, polish the surface and ultrasonically treat it with absolute ethanol. After the surface is dry, put it in an oven and place it at 100°C for 2 hours before use.
[0037] (2) Preparation of matrix suspension: 10g / L silicon carbide, 5g / L aluminum oxide, 9g / L aluminum phosphate, 12g / L phenolic resin, 10g / L nano silicon powder, 4g / L graphite powder, dodecyl Sodium benzenesulfonate 2g / L, the rest is added to 1L with ethanol, and then ultrasonic treatment is performed for 60 minutes to obtain a matrix suspension.
[0038] (3) Preparation of phosphate coating: weigh 25g aluminum dihydrogen phosphate, 10g magnesium dihydrogen phosphate, 7g sodium hexametaphosphate, 1.5g nano alumina, 3.5g silica, and 1g sodium dodecylbenzene sulfonate. 52g of solvent water, followed by ball milling for 60 minutes to obtain a phosphate dipping solution;
[0039] (4) Fix it with an electrochemical fixture, adjust it and place it in parallel between two high-purity grap...
Embodiment 3
[0045] (1) Select graphite base material, polish the surface and ultrasonically treat it with absolute ethanol. After the surface is dry, put it in an oven and place it at 100°C for 2 hours before use.
[0046] (2) Preparation of matrix suspension: 10g / L silicon carbide, 5g / L aluminum oxide, 9g / L aluminum phosphate, 12g / L phenolic resin, 10g / L nano silicon powder, 4g / L graphite powder, dodecyl Sodium benzenesulfonate 2g / L, the rest is added to 1L with ethanol, and then ultrasonic treatment is performed for 60 minutes to obtain a matrix suspension.
[0047] (4) Fix it with an electrochemical fixture, adjust it and place it in parallel between two high-purity graphite blocks, connect the working electrode, and use the calomel electrode as the reference electrode, select CHI606 electrochemical workstation, it curve, set the voltage 10V, and time 250S, electrochemical deposition in the substrate suspension.
[0048] (5) After the graphite substrate is electrochemically deposited and coa...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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