大小臂在作业状态基本每个动作都要受力,虽然钢铁冶炼技术在如今已经非常发达,但每个产品都有它的使用寿命,因此在经过一段时间的使用后,长臂挖掘机大小臂都会一定几率出现裂开的情况,只是开裂的情况各有千秋。
The large and small arms of a long arm excavator are subject to stress in almost every action during operation. Although steel smelting technology is highly developed nowadays, each product has its own service life. Therefore, after a period of use, the large and small arms of a long arm excavator have a certain probability of cracking, but the cracking situation varies.
出现开裂问题时,大家一般都会到修理厂进行裂开部分的修复工作,但是,各修理厂师傅技术参差不齐,有些修好能顶住,有些修不好顶不住。其实除了跟本身的技术有关外,更重要的是修复的方案问题。
When there is a cracking problem, everyone usually goes to the repair shop to repair the cracked part. However, the skills of the technicians in each repair shop vary, with some being able to withstand it well and others not being able to withstand it well. In fact, besides being related to one's own technology, what is more important is the issue of repair solutions.
由于断裂的情况不一,但是大小臂都是焊结构件,修补无非都是焊接。如果断裂部分在大臂油缸耳座前面一点,不建议继续工作,防止继续撕裂,产生事故。针对这个开裂情况该用何种修复方法?
Due to varying fracture conditions, both the large and small arms are welded components, and repairs are mostly welding. If the broken part is slightly in front of the ear seat of the boom oil cylinder, it is not recommended to continue working to prevent further tearing and safety accidents. What repair method should be used for this cracking situation?
我们应该切割一部分,由断裂处左右各割去侧板180-200,下面的盖板以侧板割去的180-200往左右再多割去约150。接下来,在断裂的盖板下面打好衬板,焊好,盖板裂缝也一并焊好焊接过程应该平整无气泡产生。
We should cut a part, cutting 180-200 side plates from the left and right sides of the fracture, and cutting about 150 more cover plates from the 180-200 side plates to the left and right sides of the lower cover plate. Next, lay a lining plate under the broken cover plate, weld it, and weld the cracks on the cover plate together. The welding process should be smooth and free of bubbles.
焊好后,根据切去的青色部分侧板,按尺寸重新切割一块铁板焊接上去,且在里面打上衬板。衬板要比封上去的侧板长点。
After welding, cut a new iron plate according to the size of the cut blue side plate and weld it on, and place a lining plate inside. The lining board is slightly longer than the sealed side board.
完成这步后,就差底盖板没有封上了,在封底盖板之前,还是先打衬板,为了增加焊接接触面积,巩固焊接的牢固性,打完衬板及封好底板后,修补工作基本完成。接下来可以打磨,补腻子上油漆了。
After completing this step, the bottom cover plate is almost not sealed. Before sealing the bottom cover plate, it is still necessary to apply a lining plate first. In order to increase the welding contact area and consolidate the welding firmness, after applying the lining plate and sealing the bottom plate, the repair work is basically completed. Next, you can polish and apply paint to the putty.
长臂挖掘机租赁人员认为修复的关键除了修复方法,焊接技术因素,与焊接采用的气体也有很大关系。一般普通的修理厂都是用普通二氧化气体焊。在这里建议采用二保焊焊接比较好,结实不容易开焊,因为二保焊温度高焊接面积比较大,能使钢板有效的结合。
The leasing personnel of the long arm excavator believe that the key to repair is not only the repair method, welding technology factors, but also the gas used for welding. Ordinary repair shops usually use ordinary gas dioxide welding. Here, it is recommended to use secondary welding, which is better and more sturdy and not easy to open, because the secondary welding temperature is high and the welding area is relatively large, which can effectively bond the steel plate.
Thank you for reading. The source of this article is: Long Arm Excavator. For more information and questions, please click on: http://www.dybocheng.com We will continue to work hard to provide you with services. Thank you for your support!