问题
问答题 简答题
16Mn钢的焊接工艺有哪些？
答案
参考答案：
16Mn钢的手弧焊工艺与低碳钢的基本相同，但16Mn钢有淬硬的倾向，在施焊时，应考虑选用碱性低氢型焊条。对构件刚度大或在低温施焊时，除采用碱性低氢型焊条和适当的预热温度外，尚需制定合理的焊接顺序，操作工艺及寒风形状系数等公寓措施。对于点固焊缝也应适当加大焊脚和焊缝长度、以免发生裂纹。
搜题请搜索小程序“爱下问搜题”
16Mn钢的焊接工艺有哪些？
参考答案：
16Mn钢的手弧焊工艺与低碳钢的基本相同，但16Mn钢有淬硬的倾向，在施焊时，应考虑选用碱性低氢型焊条。对构件刚度大或在低温施焊时，除采用碱性低氢型焊条和适当的预热温度外，尚需制定合理的焊接顺序，操作工艺及寒风形状系数等公寓措施。对于点固焊缝也应适当加大焊脚和焊缝长度、以免发生裂纹。
| 完形填空 | ||||
| My wife and I had just finished the 150mile trip home from our daughter's college. It was the first time in our lives that we would __1__ for any length of time. We wondered how other people had __2__ it. Later in bed, I __3__ the time I started college. My father had driven me, too. My mother had to stay home to keep the __4__from getting into the crops. I, the fourth in a line of brothers, was the first to __5__ college. The truck was slow, and I was glad. I didn't want to get to the city __6__. I shook hands with my father in the truck and he didn't say a word. But I knew he was going to make a little __7__. He finally said, "I never went to college and __8__of your brothers did. I can't say don't do this or that, because everything is __9__and I don't know what is going to come up, but I think things will __10__. When you get a job, be sure to be honest and work hard. " I knew that soon I would be __11__in the big town and I would be __12__the life home. Then my father__13__the Bible (圣经) that he had read so often. I knew that he would miss it but I must__14__it. He just said, "This can help you __15__you will let it." When I finished school I took the Bible __16__to my father. But he said he wanted me to __17__it. Now, too late, I remember. It would have been so __18__ to give it to my daughter when she got out of the car. But I didn't. My father could give me only a Bible, but I don't really believe now that I gave her half as __19__as my father gave me. So the next morning I__20__up the book and sent it to her. I wrote a note. "This can help you." I said, "if you will let it." | ||||
|