热加工工艺
熱加工工藝
열가공공예
HOT WORKING TECHNOLOGY
2010年
5期
171-173
,共3页
饼类锻件%疏松%剪切裂纹
餅類鍛件%疏鬆%剪切裂紋
병류단건%소송%전절렬문
round forgings%shrinkage%shear crack
核电站蒸汽发生器管板属于大型饼类锻件,锻造的目的是破碎铸态组织、消除先天性疏松、孔洞型冶金缺陷,同时避免萌生新的裂纹.研究了管板类锻件层状剪切裂纹的形成机理,归纳了避免这种缺陷的传统工艺,并提出了改进措施.
覈電站蒸汽髮生器管闆屬于大型餅類鍛件,鍛造的目的是破碎鑄態組織、消除先天性疏鬆、孔洞型冶金缺陷,同時避免萌生新的裂紋.研究瞭管闆類鍛件層狀剪切裂紋的形成機理,歸納瞭避免這種缺陷的傳統工藝,併提齣瞭改進措施.
핵전참증기발생기관판속우대형병류단건,단조적목적시파쇄주태조직、소제선천성소송、공동형야금결함,동시피면맹생신적렬문.연구료관판류단건층상전절렬문적형성궤리,귀납료피면저충결함적전통공예,병제출료개진조시.
The round forgings for nuclear power station belong to large forgings,the purpose of forging them is breaking up as cast microstructure,eliminating shrinkages and avoiding new cracks.The formation mechanism of layered shear crack in large round forging was analyzed,the traditional processes avoiding this kind of defects were concluded,and the improvement measures were put forward.
