For the “off-track type double-beam electrolysis and roasting craneâ€, the main beam is a key component. Since the main beam is welded by T-shaped steel and truss-shaped beams, there are a large number of fillet welds. In the traditional production, the continuous fillet weld of the main beam is welded by CO 2 or mixed gas, which has high labor intensity, low efficiency and difficult to control precision quality. In this paper corner seam submerged arc welding, automatic welding using a dedicated corner seam weld achieves a uniform full-length, both to improve the accuracy and efficiency of manufacture, and reduced distortion, received good results. 1. Technical requirements (1) The assembly requirement is to ensure that the crown value of the main bridge beam after assembly is f = (0.9~1.4) LQ/1000, and the single main beam inspection cam control value is f = (1.4~1.6) LQ/1000 And take the upper limit (see Figure 1 a). The main beam is bent horizontally to the side of the platen by f2 ≤ LQ/1500~ LQ/2500 (see Figure 1b). Main beam web section (see Figure 2). The main beam upper cover is horizontally inclined a ≤ B / 250 ( measuring position at the large partition at both ends, see Figure 3) PVC Spray Hose is widely used in high pressure industrial, compressors, service station and pneumatic tools. In agriculture, delivery pressure hose of pesticide, fungicide, fertilize solution also containing mineral oils for agriculture spraying. Material: PVC Spray Hose Pvc Spray Hose,High Pressure Spray Hose,Pvc Toilet Hose,Flexible Spray Hose Hebei Jiuxing Rubber&Plastic Product Co., Ltd. , http://www.jxrubberhose.com
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