中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2015年
2期
255-259
,共5页
高压节流阀%冲蚀磨损%激光熔覆再制造%铁基合金粉末
高壓節流閥%遲蝕磨損%激光鎔覆再製造%鐵基閤金粉末
고압절류벌%충식마손%격광용복재제조%철기합금분말
high-pressure throttle valve%erosion wear%laser cladding remanufacturing%ferroalloy powder
为获取高压节流阀的冲蚀磨损机理并解决其现场应用中的阀芯局部损伤修复问题，进行了高压节流阀的冲蚀磨损试验。在分析冲蚀磨损现象和形貌的基础上，提出了高压节流阀阀芯的冲蚀磨损机理。为恢复高压节流阀阀芯的服役性能，采用铁基合金粉末进行了阀芯的激光熔覆再制造，恢复了阀芯的形状尺寸。再制造阀芯的冲蚀磨损试验结果表明，激光熔覆再制造可恢复高压节流阀的服役性能。
為穫取高壓節流閥的遲蝕磨損機理併解決其現場應用中的閥芯跼部損傷脩複問題，進行瞭高壓節流閥的遲蝕磨損試驗。在分析遲蝕磨損現象和形貌的基礎上，提齣瞭高壓節流閥閥芯的遲蝕磨損機理。為恢複高壓節流閥閥芯的服役性能，採用鐵基閤金粉末進行瞭閥芯的激光鎔覆再製造，恢複瞭閥芯的形狀呎吋。再製造閥芯的遲蝕磨損試驗結果錶明，激光鎔覆再製造可恢複高壓節流閥的服役性能。
위획취고압절류벌적충식마손궤리병해결기현장응용중적벌심국부손상수복문제，진행료고압절류벌적충식마손시험。재분석충식마손현상화형모적기출상，제출료고압절류벌벌심적충식마손궤리。위회복고압절류벌벌심적복역성능，채용철기합금분말진행료벌심적격광용복재제조，회복료벌심적형상척촌。재제조벌심적충식마손시험결과표명，격광용복재제조가회복고압절류벌적복역성능。
To solve the problem of erosion wear mechanism and the partial damage repair problems of the valve core in the application of high-pressure throttle valves,this paper performed erosion wear experiments of a high-pressure throttle valve.The erosion wear mechanism of the valve core was pres-ented based on the analysis of erosion phenomena and pattern.To recover the service performance of high-pressure throttle valve,laser cladding remanufacturing of the valve core was conducted by using ferroalloy powder,and the shape and size of the valve core was restored.The erosion wear experiments of the remanufactured high-pressure throttle valve were performed,and the experimental results show that laser cladding remanufacturing can restore the service performance of the high-pressure throttle valve.
