热处理
熱處理
열처리
HEAT TREATMENT
2014年
2期
78-81
,共4页
李其龙%徐伟%田清源%董吉宝%段聪翀%蒋安全
李其龍%徐偉%田清源%董吉寶%段聰翀%蔣安全
리기룡%서위%전청원%동길보%단총충%장안전
Cr12钢%线切割%锻造%热处理
Cr12鋼%線切割%鍛造%熱處理
Cr12강%선절할%단조%열처리
Cr12 steel%wire cutting%forging%heat treatment
根据裂纹的宏观形貌、原材料质量、热处理后的显微组织及线切割和热处理工艺，分析了某Cr12钢8字形模冲线切割开裂的原因。结果表明，该模冲线切割开裂主要是由于原材料不合格和加工工艺不良所致。对应的措施是加强原材料的检验和制定正确的冷、热加工工艺。
根據裂紋的宏觀形貌、原材料質量、熱處理後的顯微組織及線切割和熱處理工藝，分析瞭某Cr12鋼8字形模遲線切割開裂的原因。結果錶明，該模遲線切割開裂主要是由于原材料不閤格和加工工藝不良所緻。對應的措施是加彊原材料的檢驗和製定正確的冷、熱加工工藝。
근거렬문적굉관형모、원재료질량、열처리후적현미조직급선절할화열처리공예，분석료모Cr12강8자형모충선절할개렬적원인。결과표명，해모충선절할개렬주요시유우원재료불합격화가공공예불량소치。대응적조시시가강원재료적검험화제정정학적랭、열가공공예。
A type of 8-shaped Cr12 steel plunger cracked during wire cutting .The cause of the plunger cracking was analyzed in the light of appearance of crack , quality of raw material , microstructure obtained by heat treating and wire cutting and heat treating processes .The results indicate that the plunger cracking during wire cutting is mainly attributed to unacceptable raw material and poor working processes .The measures to prevent the 8-shaped plunger from cracking are enhancement of the raw material examination and determination of the reasonable cool and hot working practices .
