江西11选5开奖结果

试件的硬度试验
来源:http://2200b.com 浏览次数:

MEIGESHIJIANYINGLIANXUHANJIE,ZHONGTUBUDETINGDUN,HANWANJIANCHAQUEWUQIKONG、LIEWEN、JIAZHADENGQUEXIANHOU,LIJIMAIRUGANSHIHUINEI,HUANMANLENGQUE。SANZU(JIAN)SHIJIANYI11345《GANGHANFENGSHOUGONGCHAOSHENGBOTANSHANGLIFAHEJIEGUODEFENJI》WEIBIAOZHUNJINXING100CHAOSHENGBOTANSHANG,QUANBUWEIIJI。SANZU(JIAN)SHIJIANHONGGUANJINXIANGZUZHIJIANYAN,JUNWUHANJIEQUEXIAN,QIEHANFENGRONGHELIANGHAO。FENBIEQUYANGJINXING****YINGDUZHISHIYAN。

结果表明,45钢与天津大无缝钢管江西11选5开奖结果异种钢材焊接时,预热温度150〜250,采取上述焊接工艺,硬度值变化不大。还进行了II号试件的硬度试验。45钢热影响区与45钢母材一侧的硬度基本一致,淬硬现象不明显。焊缝硬度高于0235基体硬度,这是45钢与0235钢稀释熔合的结果。