1. Open the file cabinet manufacturing process material: cold-rolled steel with shears to cut (back, sides, doors, roof, withdraw, laminates, etc.) required size. 2. Stamping: location with the punch machine to corner, and handle other needs aside obliterated. 3. Bending: bending machine with a fold out inner and outer folding edges. 4. Welding: welding spot welding reinforcement. 5. pickling and phosphate: the welded metal file cabinets down to the oil and chemical tank for rust. 6. Spray: semi-finished products into the electrical box painting, electrostatic spray. 7. Assembly: Assemble the door handles, keys and other accessories. 8. Finished: Paper Packaging Paper sets good metal file cabinet material: metal file cabinet main material for cold-rolled steel. Cold-based hot rolled coil as raw materials for a variety of profiles rolling, cold-rolled steel production of cold-rolled steel plate is through, commonly known as the cold plate at room temperature. Cold rolled sheet thickness is generally between 0.1-8.0mm. Features: Because there is no annealing file cabinet, its high hardness (HRB greater than 90), poor performance machining partial pumping five file cabinets, only a simple directional bending less than 90 degrees (perpendicular to the take-up direction). Because relatively brittle cold rolled coil, not suitable for processing, so under normal circumstances require annealed and cold-rolled steel surface smoothing treatment. Cold-rolled steel sheet is ordinary carbon steel cold rolled sheet for short, is the ordinary carbon steel hot rolled strip, after further cold rolling steel plate having a thickness of less than 4mm. Due to rolling at room temperature, do not produce iron oxide skin, therefore, good cold surface quality, dimensional accuracy, high glass door file cabinet, coupled with annealing treatment, the mechanical properties and process performance are better than hot-rolled sheet steel, in many areas and, especially in the field of home appliances manufacturer, has been gradually replaced by its hot-rolled steel sheet. Quality cold-rolled steel sheet includes a variety of high quality cold-rolled steel sheet, the most common is the two pumping carbon structural steel file cabinets, especially deep drawing cold rolled steel sheet, the sheet from cold-rolled carbon quality steel 08Al, and steel divided into three groups according to the surface quality; Ⅰ, Ⅱ, Ⅲ, were particularly high, high, high surface finishing, according to drawing level is divided into ZF, HF, F grade (on behalf of Punch drawing most complex, very complicated, complex parts), according to the plate thickness tolerance, is divided into A, B two precision, widely used in automobile and tractor industries. Door file cabinet file cabinet _ _ Pingshan Xiangyu Hardware Machinery provided by Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm. Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm (www.xywj1818.wjw.cn) (www.xywj1818.wjw.cn/) strong, credible, in Shenzhen, Guangdong inventory equipment and industrial supplies industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xiangyu Hardware Machinery and you hand into the brilliant, for a better future!