Manufacturing method of angle bead structure for steel coil packaging

Abstract

The invention discloses a manufacturing method of an angle bead structure for steel coil packaging, belongs to the field of manufacturing technology of cold rolling coiled material external packing pieces, and provides the manufacturing method, which can effectively reduce the manufacturing cost of angle bead coils, of the angle bead structure for steel coil packaging. The manufacturing method comprises the following steps: a, leveling the wasted and substandard coiled material according to the specified length, and tailoring the coiled material to strips for standby according to the specified width; b, adopting a flattening machine to flatten and straighten the strips manufactured in the step a; c, adopting a punch press to punch water leakage holes in the flattened and straightened strips in the step b; d, adopting a right-angle rolling machine to roll the strips to steel angle, and then adopting an inner ring forming machine and an outer ring forming machine respectively to bend the steel angle to the inner ring blank and the outer ring blank of the angle bead structures; finally, performing antiseptic treatment to obtain the inner angle bead ring products and the outer angle bead ring products of the angle bead structures.

Description

technical field [0001] The invention relates to a manufacturing method, in particular to a manufacturing method of a corner protector structure for steel coil packaging, and belongs to the technical field of manufacturing cold-rolled coil outer packaging parts. Background technique [0002] Cold-rolled steel coil corner protectors are mainly produced with cold-rolled strip steel. The process steps are: strip steel uncoiling → equidistant punching → cut-to-length cutting → right-angle rolling → bending forming → alkali cleaning or pickling → cleaning → Phosphating→cleaning→drying→color anti-rust spraying→drying. The steel strips used are genuine coils produced by cold rolling mills, and their purchase price is equivalent to that of the current cold-rolled steel coils. After the production line production, spraying and other processes, as well as the head and tail loss and waste of steel coils, etc., often make all The manufacturing price of the above-mentioned corner protect...

AI Technical Summary

Problems solved by technology

[0003] At present, there are also steel mills that use galvanized coils to be longitudinally cut into strip steel, which are made by uncoiling → equidistant punching → cutting to length → right-angle rolling → bending and forming, without anti-corrosion spraying and other processes. The color of the corner ring cannot be adjusted, and the price is slightly lower than that of colored anti-corrosion spraying, but still higher

[0004] Regardless of whether cold-rolled strip steel or galvanized steel strip is used to produce steel coil corner protectors, since the raw materials used are all cold-rolled genuine materials, the purchase price is relatively high. In the downturn of the steel industry, the cost requirements for supporting corner protectors are greatly increased. In the case of a decline, supporting manufacturers often form losses, and it is difficult to maintain continuous normal production and supply