Specifications

Abbreviated source title: Yi Qi Yi Biao Xue Bao
Volume: 33
Issue: 12
Issue date: December 2012
Publication year: 2012
Pages: 2825-2832
Language: Chinese
ISSN: 02543087
CODEN: YYXUDY
Document type: Journal article (JA)
Publisher: Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract: Aiming at the special conditions of the valves used in coal chemical industry, in
order to improve the wear resistance of the valve trim, three typical processing technologies are
adopted, which are high velocity oxy-fuel (HVOF), atmospheric plasma spray (APS) and plasma
transferred arc (PTA); and the typical materials that match the above processing technologies are
selected to spray the sample. Abrasion test, hardness test and micro-structure analysis reveal
that APS uses much higher spraying temperature than HVOF, which could contribute to the
carbide oxidation and dissolution in the matrix, after deposition the coating flexibility increases
and the worn surface is difficult to be cracked down and peeled off. In HVOF spraying process, the
particles have high impact speed and over-heating does not happen; and the coatings are under
compressive stress, have high density and good wear resistance characteristic. The coating of PTA
hardfacing has strong binding force with the base material, high hardness and good thickness, its
wear resistance characteristic is between those of APS and HVOF.
Number of references: 16
Main heading: HVOF thermal spraying
Controlled terms: Carbides - Chemical industry - Coal - Coatings - Hard
facing - Hardness - Pipe flow - Plasma spraying - Plasma welding - Safety valves
- Spraying - Wear resistance
Uncontrolled terms: Abrasion tests - Atmospheric plasma spray - Base material
- Control valves - Hardness test - High density - High hardness - High impact -
High velocity oxy-fuel - Over-heating - Plasma transferred arc - Processing
technologies - Resistance characteristics - Spraying process - Strong binding -
Technology research - Wear-resistant coating - Worn surface
Classification code: 932.3 Plasma Physics - 914.1 Accidents and Accident Prevention -
813.1 Coating Techniques - 812.1 Ceramics - 951 Materials Science - 805 Chemical
Engineering, General - 539 Metals Corrosion and Protection; Metal Plating - 524 Solid
Fuels - 421 Strength of Building Materials; Mechanical Properties - 619.1 Pipe, Piping and
Pipelines
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
11.
Accession number: 20130615997444
Title: Analysis of the thickness of the PDMS layer in structure of the stretchable sensors
Authors: Lu, Yanjun1 ; Zhu, Hongbin1 ; Zhang, Yongfang2 ; Hei, Di1/吕延军;;张永芳;黑棣