What is the national standard of spraying quality of shelves? Um
Thermosetting epoxy polyester powder without coating, coating process requirements in the coating line operation, to ensure that the coating surface plump smooth, no obvious color difference, orange peel and so on.
Coating thickness is greater than 60um, hardness 2H, no scratches, and its quality according to GB9286 standard. Standard color: blue RAL2918; column piece: beam: orange RAL3050.
1, welding groove welding requirements in accordance with the provisions of GB985 and GB986; 2, the weld metal surface wave welding uniform, no crack, slag, overip, burn, craters and needle like pores, there shall be no welding spatter; 3, the weld surface does not allow pores; undercut depth is less than 0.5mm, the total length of the total length of the weld shall not exceed 10%. The deviation of the overall dimension of butt welds and fillet welds conforms to the relevant regulations in GBJ205.
The accuracy of beam welding in accordance with the following 1 accuracy, the length of the beam limit deviation of 0.5 mm; 2, both ends of the beam hanging height limit deviation of 0.5 mm;
1, adhesion reached 1 of the GB92865-88 standard. 2, hardness (abrasion resistance) to GB6739-86 standard 2H. 3, corrosion resistance (salt fog test) GB1771-91>500 hours. 4 、 bend test, qualified under 2mm. 5 、 impact resistance is greater than 40Kg.cm. (a) the column piece of each component precision comply with the following provisions: 1, total high shelf limit deviation + 2 mm; 2, shelf width limit deviation + 1 mm; 3, the first shelf piece column hole to hole accumulation without deviation of 2 mm; the adjacent hole distance error is less than 0.02mm.4, the shelf bottom plate height limit deviation + 0.5 mm; 5, the shelf side of the sheet and the column and the ultimate bending deviation is not greater than 6 mm 1/1000;
