Materials and processes of explosion-proof electric single beam cranes: The main carrier components such as main beams and end beams are made in accordance with the GB/T14405-93 standard. The Q235B steel is used in the GB700-88 standard. The inspection of the welding process and the weld strictly observes the corresponding specifications and standards, and the X-ray filming and the super-loss of the ultra-raw wave are not damaged for important welds. The wheel material is ZG50SIMN. The wheels of the explosion -proof equipment are made of stainless steel. The gear material is 20CRMNTI/42CRMO. The material of the shaft is 45#steel. The hardness of the wheel treatment: the hardness (HB) of the inside of the trample and the inner margin ≥300-380. Hardness (HB) is ≥260, and there is no defect on the pedal and side of the wheels.

The metal structure of the explosion -proof electric single beam crane: The main beam is the structure of the groove groove beam and the box -type beam structure. It has a good stiffness (full vertical static disturbance is less than S/900) and the strength is 2Hz. The main beam of the crane is welded. The beam end is a groove stitching beam, and the main beam and the end beam are connected with refined high -strength bolts; the separation status of each component has a hanging hole, which provides convenience for the installation and transportation of the component. The welded and welded slopes meet the requirements of the GB985 and GB986 standards. The external inspection of the weld is not visible to obvious defects; the main beam has the upper arch, and the cross-middle arch is controlled at 0.9S/1000-1.4S/1000 The upper arches are controlled within the range of S/1000. All connection holes are machining holes. The rotation of each organization is flexible, smooth and reliable, and low noise.