Continuous roll forming method for M-shaped steel sheet pile

Abstract

The invention discloses a continuous roll forming method for an M-shaped steel sheet pile. The continuous roll forming method is characterized by specifically comprising the following steps that S1, strip steel is longitudinally sheared; S2, uncoiling and flattening are carried out; S3, shearing and butt welding are carried out; S4, continuous roller type cold roll forming is carried out; S5, a semi-finished steel sheet pile is cut; the strip steel is a steel reel with the width matched with the width of the unfolded size of the M-shaped steel sheet pile, or a steel reel with the width matchedwith the width of the unfolded size of the M-shaped steel sheet pile after being machined; and complex hooks and legs are synchronously formed through a downward hook forming process, the process ischanged into simple similar channel steel production, so that cold-bent steel sheet piles of different sizes are produced. In this way, the number of steel sheet pile product molds is greatly reduced,the mold cost is saved, the product development time period is shortened, the product can only be produced by 10 mm or below from an original unit, and 13.5 mm steel sheet pile products can be produced after the new technology is improved.

Description

technical field [0001] The invention relates to the technical field of steel sheet piles, in particular to a method for continuous roll bending of M-shaped steel sheet piles. Background technique [0002] my country's steel sheet pile application engineering has a certain development. Due to its special structure, it has unique advantages: high strength, light weight, and good water-proof performance; strong durability, with a service life of 20-50 years; reusable, generally dozens of times; remarkable environmental protection effect, in During construction, it can greatly reduce the amount of soil taken and the amount of concrete used, effectively protecting land resources; it has strong disaster relief functions, especially in flood control, landslides, subsidence, and quicksand rescue and disaster relief, and the effect is particularly fast; the construction is simple, The construction period is shortened and the construction cost is relatively low. [0003] The wide ap...

AI Technical Summary

Problems solved by technology

[0003] The wide application of steel sheet piles has increased the demand for a large number of cold-formed steel piles of various specifications. The current method of manufacturing steel sheet piles is to produce a set of molds for one product, which not only requires high investment, but also does not adapt to small batches of individualization. Product development, so it is urgent to improve this production method, design a general-purpose production mold, a mold can produce cold-formed steel sheet piles of various specifications, greatly reduce the variety and quantity of molds, and shorten the production time. Product development cycle to adapt to the demand development of the steel sheet pile market

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