Requirements for steel track beam (1) track beam across the verticality ≤h / 500, h for the track beam girder. Level (2) track beam lateral bending ≤l / 1500, and net 10mm, l is the length of the beam rail beam. Arch ≤10mm direction (3) track beam vertically. (4) the beam position deviation from the center of the track design orientation axis ≤5mm, which do not meet the requirements should be adjusted after the track beam positioning, in order to install the track. (5) with the same cross-section across the top surface of the track at the support beam height difference ≤10mm, elsewhere ≤15m. (6) With column 2 column adjacent the top surface of the beam orbit height difference ≤l / 1500, and ≯10mm, crane rail beams, l is the length of the beam rail beam. (7) adjacent track beam joints 2, 2 tracks beam height difference between the top surface ≤1mm, Hefei crane track, the center of lateral dislocation ≤3mm. After the rail joint polished handle rail welded joints has stress relieving heat treatment and cooled to ambient temperature, crane rail steel, weld the top and sides of the track surface was polished treatment. When the solder bumps too large, using sanders were polished until flush with the rail head, and finally polished surface. Plant expansion joints treatment plant expansion joints rail joints rail joint process usually has two kinds: one using plywood or fish plate connection, rail use 45 ° tilting joint gap of 10mm. Another use by rail head contouring plywood splicing connection, a gap of 50mm. Hefei crane rail exhibition of Commerce Bo _ _ crane rail models offered by the Hefei exhibition Bo Trading Company. Hefei crane rail exhibition of Commerce Bo _ _ crane rail Model Hefei Show Bo Trading Company (www.hfzhanbo.com) (www.hfzhanbo.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Mr. Huang.