理化检验-物理分册
理化檢驗-物理分冊
이화검험-물리분책
Physical Testing and Chemical Analysis Part A:Physical Testing
2015年
10期
755-758
,共4页
汽车助力转向泵%叶片%夹杂物缺陷%失效分析
汽車助力轉嚮泵%葉片%夾雜物缺陷%失效分析
기차조력전향빙%협편%협잡물결함%실효분석
automobile power steering pump%blade%inclusion defect%failure analysis
汽车助力转向泵失效是一起多零件断裂共存的事故。采用化学成分分析、硬度测试、宏观和微观分析以及扫描电镜和能谱分析等方法，分析了该汽车助力转向泵失效的原因。根据从理化检验获得的结果，并考虑到当泵进行运转时每个零件所起的作用和承受的载荷，找出了叶片是首裂件，其断裂的原因归之于叶片内部存在严重的长串状夹杂物缺陷。
汽車助力轉嚮泵失效是一起多零件斷裂共存的事故。採用化學成分分析、硬度測試、宏觀和微觀分析以及掃描電鏡和能譜分析等方法，分析瞭該汽車助力轉嚮泵失效的原因。根據從理化檢驗穫得的結果，併攷慮到噹泵進行運轉時每箇零件所起的作用和承受的載荷，找齣瞭葉片是首裂件，其斷裂的原因歸之于葉片內部存在嚴重的長串狀夾雜物缺陷。
기차조력전향빙실효시일기다령건단렬공존적사고。채용화학성분분석、경도측시、굉관화미관분석이급소묘전경화능보분석등방법，분석료해기차조력전향빙실효적원인。근거종이화검험획득적결과，병고필도당빙진행운전시매개령건소기적작용화승수적재하，조출료협편시수렬건，기단렬적원인귀지우협편내부존재엄중적장천상협잡물결함。
The automobile power steering pump failure was an accident caused by multiple parts fracture coexistence.Means such as chemical compositions analysis,hardness test,macro and micro analysis,scanning electron microscopy and energy spectrum analysis,as well as other approaches were used to analyze the failure causes of an automobile power steering pump.According to the results obtained from physical testing and chemical analysis,and considering the functions and load capacity of each part when the pump was in operation,it was found out that the blade was the primary fracture part,and the reason for the blade fracture was that there were severe long string shape inclusion defect in the blade.
