论文部分内容阅读
一级考试题一、从所给出的词组中选择适当的用词填入括号中。考虑焊接构件的使用目的及条件,来进行焊接设计时,不仅要研究受力的性质和(1),而且必须要考虑为得到安全具耐久性的焊接接头应采用的方法。为了能够承受冲击及(2),必须要选择适当的材料及(3)。此外在要求(4)的情况下,导致腐蚀加快的间隙及(5)的结合是应该避免的。若焊接的设计不妥当,会造成焊接施工困难,很容易产生(6)或发生过大的焊接变形及(7),而且使得焊接费用提高。此外焊后处理不当会引起材质的变化或接头的脆化等危险,所以为了正确地进行焊接设计必须要对(8),接头的机械性能,焊接施工
A test questions, from the phrase given by choosing the appropriate words in parentheses. Considering the purpose and conditions of the use of welded components, the design of the weld should be studied not only with respect to the nature of the force and (1), but also with the method used to obtain a secure and durable welded joint. In order to withstand impact and (2), it is necessary to select the appropriate material and (3). In addition, in the case of (4), the gap leading to accelerated corrosion and (5) should be avoided. If the welding design is not properly, it will cause difficult welding, easy to produce (6) or excessive welding deformation and (7), but also to increase the welding costs. In addition, improper welding will lead to changes in material quality or joint embezzlement and other dangerous, so in order to correctly design the welding must be (8), the mechanical properties of joints, welding construction