Tuesday, April 10, 2012

the bronze with inscriptions and patterns are thicker than the others

Try to take double-sided welding, such as special circumstances can not be double-sided welding, the single-sided welding. The length of lap-sided welding ≥ 5D, single-sided welding ≥ 10D. Lap welding, the welding end steel pre-bent, and the axis of the two reinforced along the same line. Prior to welding the two fixed positioning weld lap end distance ≥ 20MM. Weld thickness not less than 0.3 times the reinforcement diameter; weld width of not less than 0.7 times the reinforcement diameter. If placed this bronze to the sunshine or other light sources, you will see the decorations clearly. Slag, welding arc joint basis of visual observation or measurement, visual inspection requirements: the weld surface should be smooth, no dents or welding; welded joint area shall be no crack; bending of the joints is not 40; reinforced axis offset greater than 0.1D, and not more than 3MM; welding thickness deviation is less than a +0.05 D-0MM; weld width deviation not greater than +0.1 D-0MM.
 Weld length deviation is less than-0.5D; horizontal undercut depth is not more than 0.5MM, long 2D weld surface pores and residue is more than 2, each area of not more than 6MM. Reinforced after banding, timely inspection and acceptance. Check the reinforcement model based on design drawings, the diameter of the root of the number, spacing, shape, size is correct, check the position of negative reinforcement, reinforced hook toward correct. Check the location and length of lap of the reinforced joints, anchorage length of compliance. Check the protective layer of concrete to meet the requirements. On the wall opposite to the mirror would reflect the patterns on the back of the bronze. Check the steel banding is solid, with or without loosening. Banding missing buckles, loose buckle does not exceed 10% of the debit should be tied, and should not be concentrated. Steel surface with or without grease, granular (Flake) rust. Reinforced installation tolerances and testing methods such as
Plastering engineering bronzes, in the structure or quality inspection and process handover. Meet the type of work item must be checked to ensure that the key to the plastering project quality and production schedule. Respond to the following items before the plaster to be checked: the main structure and hydropower equipment embedded parts are complete and solid, a variety of embedded iron, wood brick location elevation is correct. After serious study and research, they are sure it is a bronze of Shang Dynasty. Should be based on the specific circumstances before the plaster on the surface of the substrate necessary to deal with the application of scaffold eye, a variety of pipeline crossing over the hole in the wall and floor holes, tick ducts 1:3 cement mortar to fill embedded dense or blocked Qi Hao.
Substrate surface dust, dirt, grease, alkali membrane, asphalt stains, adhesive mortar should be cleaned and sprayed with water to wet. Watering Run wall: In order to ensure the plastering mortar with the substrate surface firmly bonded to prevent the hollowing of the plaster layer, cracks, loss and other quality defects in the plaster before, in addition to processing the surface of the plaster matrix, but also to deal with wall watering moist. Experts believed that the bronze with inscriptions and patterns are thicker than the others. A stone varieties, specifications, quality should be consistent with the design and bronze sculpture specifications. cement the: P.032.5 ordinary portland cement or white cement. Stone approach should stack on the interior, Celi stacked underneath and skids side. Check varieties, specifications, quantity, quality, compliance with design requirements.

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