Process flow
The manufacture of containers is a production line operation, and its process flow It can be roughly divided into the following stages: 1. Factory inspection of raw materials, cutting, steel surface treatment (one-time sanding of steel plates, spraying of epoxy zinc-rich primer), 2 folding plates, stamping and forming 3 parts (front and rear frames, side panels, top plates, chassis) welding assembly, FCL welding assembly 4 FCL slag removal, secondary sanding (after the secondary shot peening surface treatment, the weld area, the welding heat-affected area and other surfaces that require secondary shot blasting, the roughness requirements reach BN9-BNl0 (Ry value 25µ-35µ), and the rust removal level reaches Sa2 .Level 5 (approximately white iron shape), cleaning 5 spraying (black primer spraying should be after the floor is installed), paint drying 6 installation of spare parts (locks, air inlet blinds, breathable covers, etc.), beauty decoration (spraying or labeling, nameplates, interior repairs), wind and rain dense experiments, finished product inspection, warehousing
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