Thermal oxidization resistant engine cylinder inner wall abrasion resistant coating and preparation method thereof

A wear-resistant coating and engine technology, applied in coatings, metal material coating technology, metal processing equipment, etc., can solve problems such as unsatisfactory requirements, achieve less breakage and shedding, reduce friction coefficient, and improve heat resistance The effect of oxidation properties

Inactive Publication Date: 2016-03-30
HEFEI ZHONGLAN NEW MATERIAL TECH CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the advancement of science and technology, people's requirements for environmental protection and automobile performance are getting higher and higher. The coating's corrosion resist

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] An anti-thermal oxidation engine cylinder inner wall wear-resistant coating, made of the following parts by weight (kg) of raw materials: 316 stainless steel powder 68, Mo powder 6, Ni60 powder 25, WC5.8, B 4 C5.6, nanographene 0.3, tetrabutyl titanate 2.5, sodium molybdate 8.5, acetic anhydride 4.5, dimethylformamide 75, appropriate amount of concentrated hydrochloric acid, tetrabutylammonium bromide 10.

[0014] The method for preparing a wear-resistant coating on the inner wall of a thermal shock-resistant engine cylinder includes the following steps:

[0015] (1) Mix sodium molybdate, acetic anhydride and dimethylformamide, add concentrated hydrochloric acid to adjust the pH to 2.5, then add tetrabutylammonium bromide while stirring, heat to 49°C, stir and react for 50 minutes, then Join WC, B 4 C. Nano graphene, tetrabutyl titanate, continue to stir and react for 1 hour to obtain a mixture;

[0016] (2) Mix the mixture with other remaining ingredients, grind uniformly, he...

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

No PUM Login to view more

Abstract

The invention discloses a thermal oxidization resistant engine cylinder inner wall abrasion resistant coating which is prepared from the following raw materials in parts by weight: 68-69 parts of 316 stainless steel powder, 6-6.5 parts of Mo powder, 25-26 parts of Ni60 powder, 5.8-6 parts of WC, 5.6-5.8 parts of B4C, 0.3-0.4 part of nano graphene, 2.5-2.8 parts of tetrabutyl titanate, 8.5-10 parts of sodium molybdate, 4.5-4.8 parts of acetic anhydride, 75-80 parts of dimethylformamide, a proper amount of concentrated hydrochloric acid and 10-12 parts of tetrabutylammonium bromide. According to the thermal oxidization resistant engine cylinder inner wall abrasion resistant coating, through utilizing sodium molybdate, nano molybdenum particles are formed on the surface of the metal powder, and nano molybdenum dioxide is adhered to the surface, so that the lubrication performance of the coating is improved, and the bonding strength of the coating is improved; and through utilizing WC, B4C, nano graphene and tetrabutyl titanate, the thermal oxidization resistance of the coating is improved, the friction coefficient is reduced, the bonding strength of the coating and a substrate is high, and the fracture and falling-off phenomena are reduced.

Description

technical field [0001] The invention relates to the technical field of coatings on the inner walls of automobile cylinders, in particular to a wear-resistant coating on the inner walls of thermal oxidation-resistant engine cylinders and a preparation method thereof. Background technique [0002] Energy saving and emission reduction has become the ultimate goal of global auto companies. According to data, in the emission of air pollutants, CO accounts for 66%, NOx accounts for 43%, HC accounts for 31%, CO 2 33% of air pollution and 20% of particulate matter come from vehicle emissions. The lightweight of automobiles is very important to save energy and reduce exhaust emissions. The use of aluminum alloy engines to gradually replace traditional cast iron engines is one of the main ways to save energy and reduce emissions. However, because the strength and stiffness of aluminum alloy are lower than those of cast iron, a common method is to inlay cast iron bushings on the inn...

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): C23C4/067C23C4/134B22F9/16B22F1/02
CPCB22F1/0003B22F9/16B22F1/16
Inventor 陈恒义
Owner HEFEI ZHONGLAN NEW MATERIAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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