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抓钢器挖掘机大小臂维修维护方法

日期:2018-04-26   来源:/
长臂挖掘机抓钢器挖掘机大小臂是用15Mn钢板焊接组成,有时原焊缝本身有气泡、夹渣和微小龟裂。检查抓钢机挖掘机大小臂侧板焊缝锈蚀裂纹时需要将焊缝表面漆层、锈蚀刮掉或打磨干净,观察时用小锤轻击焊缝,必要时可以使用放大镜观察。
The grab arm of the long arm excavator is made of 15Mn steel plate. Sometimes the original weld itself has bubbles, slag and tiny cracks. It is necessary to use a small hammer to light the weld, and to use a magnifying mirror for observation when necessary.
在抓钢机超负荷工作时,原焊缝处会产生微小裂纹并慢慢扩大:焊接时焊条与板材的性能不符而产生裂纹:因抓钢机动臂体积较大,难以采用可靠有效的加热保温措施,焊后未能彻底除去焊缝周边母材淬硬区,导致焊缝强度下降:抓钢机作业过程中振动冲击较大,焊缝处受力不均使焊缝开裂。
When the steel machine is overloaded, the original weld will produce small cracks and expand slowly: the welding rod is not compatible with the property of the plate, and produces cracks. Because the volume of the steel manipulator is large, it is difficult to use the reliable and effective heating and heat preservation measures. After welding, the hardened zone of the weld periphery is not completely removed, which leads to the strength of the weld. Drop: during the operation of the grabbing machine, the vibration impact is large, and the uneven stress on the weld seam causes the weld cracking.
将焊缝彻底打磨、除锈并涂以防锈漆。长臂挖掘机在挖掘施工现场,对于已有的锈蚀焊缝,可根掘实际情况选择手工除锈,缺点是工人劳动强度较大,人工费用较高;亦可采用酸洗除锈方式,即以有机酸为主要基科,配以缓蚀剂、表而活性剂、除锈剂、防锈剂和成膜剂等复合材料,调制成具有除锈、防锈和底漆功能的酸洗溶液,通过清洗达到除锈和防锈目的。
Thoroughly weld the weld, remove rust and apply anti rust paint. The long arm excavator is excavating the construction site. For the existing corrosion welds, it can choose to remove rust by hand. The disadvantage is that the labor intensity is great, the labor cost is higher, and the acid cleaning method is also used, that is, the organic acid is the main basic section, with the corrosion inhibitor, the surfactant, the rust removing agent, the antirust agent and the ion. The membrane and other composite materials are modulated into an acid pickling solution with rust removal, rust prevention and primer functions. The rust and rust prevention purpose is achieved through cleaning.
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We have always been with the quality first, customer first, as our service tenet, our best efforts to provide you with satisfactory service, we sincerely welcome you to this company inspection, selection, hope that we have a good opportunity to cooperate to create a win-win situation together!

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