Roller continuous cold bending forming method of light steel sheet pile cspl2
A technology of cold-bending forming and steel sheet piles, which is applied in the field of metal pressure processing, can solve the problems of many empty bends, low forming precision, poor water-locking effect, etc., and achieve the effect of improving structural strength and strength
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Embodiment approach 1
[0047] Implementation mode one: if Figure 1-15 As shown, the strip steel in this embodiment is a hot-rolled strip coil with a width of 381.46-385.46 mm after slitting, a carbon steel with an unlimited length, a thickness of 3.5 mm, and a carbon content of 0.40%.
[0048] (1) Slitting strip steel: the width calculated according to the process is the unfolded width of the finished steel sheet pile, on the slitting unit
[0049] Cut the strip steel billet into the required specifications, after slitting, the width is 383.46 mm (plus or minus 2 mm), the length is unlimited, and the thickness is 3.5 mm.
[0050] (2) Uncoiling and leveling: Put the slitting steel strip on the uncoiler of the cold roll forming unit to open it, and pass the leveling
[0051] The machine makes the strip level.
[0052] (3) Shear butt welding: cut off the head of the strip steel that exits the leveler, and connect it with the strip steel that passed through the welding machine before.
[0053] Tail ...
Embodiment approach 2
[0077] Embodiment 2: The cold-bending forming method of this embodiment is: sequentially including feeding, roll-type continuous cold-bending forming, finishing, cutting and packaging. The feeding is to combine the dimensions after slitting and forming with the expanded width and thickness of the steel sheet pile CSPL2 Consistent hot-rolled strip steel coils are sent to the feed end of the cold-rolled forming unit, and finishing refers to the frame shaping unit that passes the formed steel sheet pile strip through the forming frame to make the plate shape straight and cooled to room temperature, then the steel sheet pile after shaping is entered into the shearing equipment and cut according to the required size; the strip steel in this embodiment is a hot-rolled strip coil with a width of 381.46 mm after slitting, with unlimited length and thickness 5.5 mm, low-alloy structural steel with a carbon content of 0.15%, the specific cold-formation method is:
[0078] (1) The first ...
Embodiment approach 3
[0094] Embodiment 3: The cold-bending forming method of this embodiment is: sequentially including feeding, roll-type continuous cold-bending forming, finishing, cutting and packaging. The feeding is to combine the dimensions after slitting and forming with the expanded width and thickness of the steel sheet pile CSPL2 Consistent hot-rolled strip steel coils are sent to the feed end of the cold-rolled forming unit, and finishing refers to the frame shaping unit that passes the formed steel sheet pile strip through the forming frame to make the plate shape straight and cooled to room temperature, and then put the shaped steel sheet pile into the shearing equipment and cut it according to the required size; the roll cold forming includes the following steps:
[0095] (1) The first pass: the strip is heated to an edge temperature of 560°C (the strip is heated by high-frequency induction heating with a frequency of 250Hz), and then the first pass of reverse bending deformation (a t...
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Abstract
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