Method for preparing high-temperature antifriction and wear resistant composite plating
A composite coating, high-temperature technology, applied in the direction of coating, electrolytic coating, etc., can solve the problems of low coating strength, coating peeling, low friction coefficient, etc., and achieve the effect of low preparation cost and simple operation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0024] Example 1
[0025] Step 1: Pretreating the surface with superalloy K17 as the metal matrix
[0026] (1) Mechanically treat the oxide layer on the surface of superalloy K17;
[0027] (2) Degreasing with organic solvent can be cleaned with acetone solution to remove surface dirt, and then rinsed;
[0028] (3) Chemical degreasing, can use 20~30g / L NaCO 3 (sodium carbonate), 30~40g / L Na 3 PO 4 (sodium phosphate), 50g~60g / L NaOH (sodium hydroxide), 5g~10g / L Na 2 SiO 3 (sodium silicate) solution, washed at 60-80 ℃ solution temperature for 5-15 minutes, used to remove a uniform rust-proof thin oil layer or general light oil stain on the steel surface, while for thicker oil layers or The pasty oil must be scraped on the surface to remove the oil first, and then washed with the above solution to remove the oil completely. The water film on the surface of the workpiece after degreasing and washing is a continuous and uniform water film as the standard for degreasing clean....
Example Embodiment
[0040] Example 2
[0041] Step 1: Pretreating the surface of the superalloy K17, the operation is the same as that in Example 1.
[0042] Step 2: Preparation of Ni-TiN transition layer by high-speed electrospraying
[0043] The preparation method of the plating solution system is as follows: adding nano-scale TiN particles into water to form an aqueous suspension, then adding polyoxyethylene lauryl ether to mix, and finally mixing and stirring with the rapid nickel base plating solution for 10-20 minutes.
[0044] The obtained bath system is composed of: nickel sulfate (NiSO 4 ·6H 2 O) 250g / L, triammonium citrate (NH 4 ) 3 C 6 H 5 O 7 60g / L, ammonia water 140ml / L, nano-scale TiN particles 6g / L, polyoxyethylene lauryl ether 0.4g / L, the balance is water, and the pH value is 7.0.
[0045] The high-speed electrospraying voltage is 6V, and the current density of the high-speed electrospraying is 75A / dm 2 , Electrospray plating for 20 minutes under the condition that the w...
Example Embodiment
[0052] Example 3
[0053] Step 1: Pretreating the surface of the superalloy K17, the operation is the same as that in Example 1.
[0054] Step 2: Preparation of Ni-TiN transition layer by high-speed electrospraying
[0055] The preparation method of the plating solution system is as follows: mixing polyoxyethylene lauryl ether and water, then adding nano-scale TiN particles to disperse and mixing, and finally mixing and stirring with the basic plating solution for 10-20 minutes.
[0056] The obtained bath system is composed of: nickel sulfate (NiSO 4 ·6H 2 O) 250g / L, triammonium citrate (NH 4 ) 3 C 6 H 5 O 7 60g / L, ammonia water 140ml / L, nano-scale TiN particles 10g / L, polyoxyethylene lauryl ether 1g / L, the balance is water, and the pH value is 7.5.
[0057] The high-speed electrospraying voltage is 6V, and the current density of the high-speed electrospraying is 75A / dm 2 , Electrospray plating for 20 minutes under the condition that the working temperature of the pl...
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap