河北冶金
河北冶金
하북야금
HEBEI METALLURGY
2014年
11期
27-29
,共3页
33MnCrTiB扁钢%货叉%疲劳试验%脱碳层%分析
33MnCrTiB扁鋼%貨扠%疲勞試驗%脫碳層%分析
33MnCrTiB편강%화차%피로시험%탈탄층%분석
33MnCrTiB flat steel%goods fork%fatigue test%decarburization layer%analysis
某厂采用33MnCrTiB扁钢加工工程机械用货叉，用户入厂检验时发现1支货叉疲劳试验不合格。通过化学成分、扫描电镜、高倍、硬度等分析，认为表面脱碳是疲劳试验失败的原因。应加强原材料和货叉生产中脱碳层的控制。
某廠採用33MnCrTiB扁鋼加工工程機械用貨扠，用戶入廠檢驗時髮現1支貨扠疲勞試驗不閤格。通過化學成分、掃描電鏡、高倍、硬度等分析，認為錶麵脫碳是疲勞試驗失敗的原因。應加彊原材料和貨扠生產中脫碳層的控製。
모엄채용33MnCrTiB편강가공공정궤계용화차，용호입엄검험시발현1지화차피로시험불합격。통과화학성분、소묘전경、고배、경도등분석，인위표면탈탄시피로시험실패적원인。응가강원재료화화차생산중탈탄층적공제。
With chemical composition analysis, SEM, high power microscope, hardness analysis, it is con-sidered that the fatigue test failure of one sold goods fork of 33MnCrTiB flat steel in some factory is caused by surface decarburization.It should be strictly controlled in raw materials and production.
