Step 1: confirm whether received the shelves number according to the order of delivery, all kinds of fittings is complete, the color of the sample, packing conforms to requirements.
The second step: shelves overall installation accuracy test
1, shelf piece of vertical deviation is not more than 10 mm
2, namely beam height deviation � 10 mm
3, adjacent shelf at the bottom of the column center distance deviation � 2 mm
4, roadway with the same column shelves displacement deviation is not more than 5 mm;
Step 3: shelf manufacturing accuracy of detection
1, imported CNC machine tools system roll forming of pillar, fore and aft hole error � 2 mm
2, at full load, inside and outside the post camber should be less than H / 1000, beam load deflection should be less than L / 250;
3, shelves rigidity and strength in accordance with the mechanical industry standard GB / 5323-5323;
4, shelves welding process with reference to national standards, no desoldering, virtual welding phenomenon, each all welding parts manual to welding slag and spatter;
Step 4: surface treatment technology
Black grey – to remove surface dirt, chemical cleaning, phosphating, coating – flow flat curing – packing inspection, coating thickness 60 microns.
When acceptance of the above standard in the enterprise may not be immediately detected results, so as long as the first shelf is consistent and samples, appearance and number and invoice consistent can, other specific size can be sampling inspection, strength and stiffness coating thickness need supplier to issue a report.