八、焊后热处理的取代技术 焊后热处理除了上面谈到的一些有利和不利因素外,还存在着自身实施上的一些问题。如建造处理超大型构件的炉子有困难,厚度变化的、形状复杂的、刚性太小的构件等,在经受焊后热处理时所产生的变形、破坏、应力集中和残留等问题。这些都可归结为能不能进行焊后热处理这样一个问题。 实践证明,当有些钢种和焊件不适合实施焊后热处理时,可以以其它的技术手段来 Eight, post-weld heat treatment replacement technology Post-weld heat treatment in addition to the above mentioned some of the favorable and unfavorable factors, there are still some problems in their own implementation. Such as the construction of the furnace handling super-large components have difficulties, the thickness of the changes, the shape of complex, too rigid components, such as in the post-welding heat treatment deformation, destruction, stress concentration and residual problems. These can be attributed to such a problem can not be post-weld heat treatment. Practice has proved that when some types of steel and weldment is not suitable for the implementation of post-weld heat treatment, you can use other technical means