我們都知道挖掘機的主要結構是伸直臂，通常是焊接的。焊接后，伸縮臂會有一定的形狀變化，即焊接變形，這將嚴重影響構件以后使用的效果。那么伸縮臂焊接變形的主要形式和原因是什么呢?今天，挖掘機加長臂廠家將帶您一起學習以下相關內容!
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!
挖掘機伸縮臂焊接變形控制技術方法:
Welding deformation control technology method of excavator telescopic arm:
(1)采用焊接變形控制技術
(1) Adopt welding deformation control technology
焊接方法和焊接工藝參數的合理選擇，應圍繞結構的中性軸平衡布置焊縫，合理選擇焊接順序，采用倒焊和斷續步焊，預置反變形、剛性固定等?，F有變形常采用機械修正和火焰修正。這些變形預防措施和修正過程主要依靠經驗和有限的試驗數據，不能適應復雜多變的結構和焊接方法。焊接變形的修正是非常耗時費力的，甚至會導致產品報廢。
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)應用焊接變形預測方法
(2) Application of welding deformation prediction method
焊接數值模擬可以通過模擬復雜或不可觀測的焊接現象，預測極端情況下未知的焊接規律來了解焊接過程的規律。數值模擬作為一種強有力的定量研究工具，不僅可以幫助了解焊接現象的本質，預測殘余應力和變形，而且可以作為研究殘余應力控制和降低，優化焊縫質量的工具。
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.
今天的內容首先在這里為您介紹一下，如果您想購買不同型號的挖掘機伸縮臂，歡迎您撥打我公司銷售電話咨詢具體內容!
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!
