我们都知道挖掘机的主要结构是伸直臂，通常是焊接的。焊接后，伸缩臂会有一定的形状变化，即焊接变形，这将严重影响构件以后使用的效果。那么伸缩臂焊接变形的主要形式和原因是什么呢?今天，挖掘机加长臂厂家将带您一起学习以下相关内容!
As we all know, the main structure of excavator is straight arm, which is usually welded. After welding, the shape of the telescopic arm will change to some extent, that is, the welding deformation, which will seriously affect the effect of later use of the component. So what are the main forms and causes of welding deformation of telescopic boom? Today, the manufacturer of excavator's extended boom will take you to learn the following related contents!
挖掘机伸缩臂焊接变形控制技术方法:
Welding deformation control technology method of excavator telescopic arm:
(1)采用焊接变形控制技术
(1) Adopt welding deformation control technology
焊接方法和焊接工艺参数的合理选择，应围绕结构的中性轴平衡布置焊缝，合理选择焊接顺序，采用倒焊和断续步焊，预置反变形、刚性固定等。现有变形常采用机械修正和火焰修正。这些变形预防措施和修正过程主要依靠经验和有限的试验数据，不能适应复杂多变的结构和焊接方法。焊接变形的修正是非常耗时费力的，甚会导致产品报废。
The reasonable choice of welding method and welding process parameters should be balanced around the neutral axis of the structure, the reasonable choice of welding sequence, the use of reverse welding and intermittent step welding, preset reverse deformation, rigid fixation, etc. Mechanical correction and flame correction are often used in the existing deformation. These deformation prevention measures and correction process mainly rely on experience and limited test data, which can not adapt to complex and variable structures and welding methods. The correction of welding deformation is very time-consuming and laborious, and even leads to product scrap.
(2)应用焊接变形预测方法
(2) Application of welding deformation prediction method
焊接数值模拟可以通过模拟复杂或不可观测的焊接现象，预测极端情况下未知的焊接规律来了解焊接过程的规律。数值模拟作为一种强有力的定量研究工具，不仅可以帮助了解焊接现象的本质，预测残余应力和变形，而且可以作为研究残余应力控制和降低，优化焊缝质量的工具。
Welding numerical simulation can simulate complex or unobservable welding phenomena and predict unknown welding rules in extreme cases to understand the rules of welding process. As a powerful quantitative research tool, numerical simulation can not only help to understand the nature of welding phenomenon, predict the residual stress and deformation, but also can be used to study the control and reduction of residual stress and optimize the quality of weld.
今天的内容在这里为您介绍一下，如果您想购买不同型号的挖掘机伸缩臂，欢迎您拨打我公司销售电话咨询具体内容!
Today's content is first introduced here for you. If you want to buy different models of excavator telescopic boom, you are welcome to call our company's sales phone for specific content!
