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摘要钛钢复合板具有钢的塑性和强度以及钛材优异的抗腐蚀性能，一般经常应用于国防工业，比如，军工，原子能等领域。由于钛钢复合板的中钛和钢物理性能和化学性能的差异，如果钛钢复合板对接采用直接熔焊时容易产生脆性的钛钢金属间化合物如TiFe和TiFe2，而且钛和铁的线膨胀系数和热导率相差较大会导致焊缝收缩不均匀产生较大的内应力，导致焊缝的开裂，所以直接的熔焊技术不能解决钛钢复合板的对接。23914
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本文以1+10mmTA1+Q235钛钢复合板作为研究对象，利用电子束焊接对钛钢复合板的拼接进行了研究，利用电子束焊接的能精准控制熔深热影响区小等优点，先对钢侧进行电子束焊接，在在钛侧开30度坡口添加钒丝对钛钢结合面进行焊接，最后用钛进行盖面处理，从而得到了全透型的焊缝，通过对焊接参数的调整得到了良好的焊接接头。结合晶相和EDS的观察，中间层的钛钒铁的含量成浓度梯度变化，虽然中间层处检测到了钛钒铁元素共存区域，但是并没有大量出现微裂纹，脆硬相含量有限。
关键词 钛—钢复合板 爆炸焊 电子束焊接 焊接工艺
毕业设计说明书（毕业论文）外文摘要
Title Electron beam welding of titanium steel explosive clad plate
Abstract
Titanium clad steel plate with steel plasticity and strength and excellent corrosion resistance of titanium , often used in the defense industry in general , such as , military , nuclear and other fields. When butt welding of titanium clad steel plate . However, the effect of titanium - steel explosion composite quality factor more, the process conditions are the main factors affecting its quality. This article from the explosive welding parameter theory , electron beam welding of titanium - steel explosion process conditions were studied composites
In this paper, 1 +10 mmTA1 + Q235 titanium clad steel plate as the object of study , the use of electron beam welding of titanium clad steel plate splicing has been studied using electron beam welding to precisely control the depth of penetration advantages of small heat-affected zone , the first steel side electron beam welding, the titanium side of the groove opening 30 for adding vanadium titanium steel wire welded joint surface , and finally covered with titanium for surface treatment , to obtain a full penetration weld type , by adjusting the welding parameters get a good weld joints. Combination of a crystalline phase and EDS observation of vanadium and iron content of the titanium intermediate layer at a concentration gradient , while the intermediate layer of the titanium-vanadium iron detected coexistence region , but not large microcracks , brittle phase content is limited.
Keywords titanium steel clad plate Explosive Welding Electron beam welding Welding process
目 次
1 绪论 1
1.1 课题背景 1
1.2 爆炸焊接的基本理论和工艺流程 1
1.2.1 爆炸焊接的发展历程 1
1.2.2 爆炸焊接的基本理论 2
1.2.3 爆炸焊接的工艺流程 4
1.3 电子束焊接 6
1.4 钛钢复合板的焊接性能及研究现状 7
1.6 本课题的研究目的和内容 7
1.6.1 研究目的 7
1.6.2 研究内容 7
2 试验材料和方法 8
2.1 实验材料 8
2.2 电子束焊接系统 8
2.3 实验过程与检测方法 9