Causes of ball valve flame spraying coating falling off

YU Yanmin; CHE Pengcheng; LIU Qing

doi:10.11973/lhjy-wl202306015

PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING > 2023 > 59(6): 55-58. > DOI: 10.11973/lhjy-wl202306015

YU Yanmin, CHE Pengcheng, LIU Qing. Causes of ball valve flame spraying coating falling off[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2023, 59(6): 55-58. DOI: 10.11973/lhjy-wl202306015

Citation:

PDF (3052 KB)

Causes of ball valve flame spraying coating falling off

1. Harbin Songlin Power Station Equipment Co., Ltd., Harbin 150046, China;
2. Harbin Energy Innovation Digital Technology Co., Ltd., Harbin 150028, China;
3. Academy of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150000, China;
4. Harbin Boiler Company Limited, Harbin 150000, China

More Information

Received Date: July 08, 2022

Graphical Abstract

Abstract

Abstract

An obvious deformation occurred at the hinged rotation movement of a ball valve and valve stem, resulting in a large area of flame spraying coating falling off on the surface. The reasons for the coating falling off were analyzed by means of macroscopic observation, chemical composition analysis, scanning electron microscopy and energy spectrum analysis. The results show that the valve stem drived the ball valve to rotate by hinge, and the ball valve performed high-frequency and periodic motion during rotation. The alternating stress caused the creep deformation of the ball valve substrate, and the deformed substrate caused the brittle flame spraying coating to break and fall off in a large area.
- ball valve,
- valve stem,
- torsional force,
- fatigue stress,
- flame spraying

FullText(HTML)

References (22)

References

[1]	鹿海洋.多角度冲击下Cr₃C₂-kNiCr改性涂层的冲蚀磨损特性及机理研究[D].济南:山东大学,2022.
[2]	孙勇,孙健豪,唐洪奎,等.热喷涂用Inconel718粉末制备及涂层性能研究[J].金属加工(热加工),2022(7):58-61.
[3]	易新林.超音速火焰喷涂Cr₃C₂/Fe复合涂层的组织结构及其性能研究[D].马鞍山:安徽工业大学,2021.
[4]	国俊丰,夏春阳.热喷涂TiC-NiCr涂层的磨损行为及机理[J].有色金属工程,2021,11(10):48-53.
[5]	章友谊.超音速火焰喷涂Cr₃C₂-NiCr涂层和WC-10Co-4Cr涂层的组织与性能[J].材料保护,2020,53(7):100-104,136.
[6]	丁翔,程旭东,丁彰雄,等.超音速火焰喷涂微纳米WC-CoCr涂层的性能与空蚀行为[J].中国有色金属学报,2017,27(8):1679-1686.
[7]	KANE K A.The effect of bond coating surface modification on the performance of atmospheric plasma spray thermal barrier coatings[J].Surface and Coatings Technology,2019,378:125042.
[8]	VERESCHAKA A,GRIGORIEV S,CHIGAREV A,et al.Development of a model of crack propagation in multilayer hard coatings under conditions of stochastic force impact[J].Materials,2021,14(2):260.
[9]	黄瑞,刘湘江,黄宗泽.R18CrNi8钢制渗碳针阀体失效分析[J].宝钢技术,2021(2):43-47.
[10]	ZHENGBING Q I.Effect of sputtering power on the chemical composition,microstructure and mechanical properties of CrN_x hard coatings deposited by reactive magnetron sputtering[J].Vacuum,2017,145:136-143.
[11]	王坤,姜鹤明,金克雨,等.球阀表面热喷涂镍基合金强化层耐磨性的研究[J].四川冶金,2022,44(2):23-27,59.
[12]	黄宇生,柏洪武,邱晓来,等.超音速火焰喷涂Cr₃C₂-NiCr涂层性能及其在金属硬密封球阀上的应用[J].材料保护,2020,53(9):50-55.
[13]	陈彦,杭丽娜,张程,等.钛材球阀阀球及阀座表面硬化处理的研究[J].化工机械,2018,45(5):533-537.
[14]	车鹏程,邵文柱,程义,等.瞬时过热对高铬镍奥氏体钢断裂和析出相形变的影响机理[J].金属热处理,2021,46(5):235-242.
[15]	卢艳东,田洪志.超级双相不锈钢球阀腐蚀泄漏预防措施[J].发电设备,2021,35(3):177-184.
[16]	夏雯,刘淑凤,杜风贞,等.天然气管道用直通球阀的开裂原因分析[J].理化检验(物理分册),2017,53(11):818-821.
[17]	黄美林,吴怀敏,王忠渊,等.高温高压耐磨球阀的研制[J].阀门,2020(6):13-16.
[18]	李俊,吕东,张晓忠,等.金属密封球阀的密封性能机理解析[J].阀门,2022(2):123-127.
[19]	曹海.耐磨球阀在煤直接液化工艺的应用及失效分析[J].化工管理,2021(26):178-179,182.
[20]	李宪爽.某亚临界机组锅炉末级过热器泄漏原因分析[J].理化检验(物理分册),2019,55(1):56-58.
[21]	张成,陆平,张清双,等.金属密封球阀密封面硬化技术的选择[J].通用机械,2015(5):87-88.
[22]	郝小虎,赵炜,李建国,等.长输管道阀门内漏失效分析和控制措施[J].全面腐蚀控制,2020,34(7):117-119.

Cited By

Get Citation

PDF

XML

Article views (11) PDF downloads (2)

Turn off MathJax

Article Contents

Abstract

References

Causes of ball valve flame spraying coating falling off

Abstract

References

Catalog

Export File

Citation

Format

Content