Method for producing threaded pipe piles with adjustable diameters and wall thicknesses

Abstract

The invention provides a method for producing threaded pipe piles with adjustable diameters and wall thicknesses. The method is characterized by comprising the following steps that 1, corresponding weights of steel strip coils are calculated according to lengths of pipe piles with different thicknesses; 2, the steel strip coil with the first thickness is placed on a feeding machine and subjected to uncoiling; 3, an uncoiled steel strip is fed into a clamping feeding leveler, and the originally coiled steel strip is changed into a flat strip at the same time that pulling is conducted; 4, the leveled steel strip is fed into an edge milling machine to be subjected to edge milling, and therefore a groove shape beneficial for welding forming is formed by the two sides of the steel strip; 5, guiding and uprighting are conducted through an electric vertical roller; 6, the steel strip passing through a bending edge enters a forming machine to be gradually crimped under the guidance of guiding rollers to form a spiral steel pipe with a needed diameter; 7, if pipe diameter changing needs to be conducted in the pipe pile forming process, forming of the pipe piles with different diameters is achieved by adjusting positions of forming rollers on the forming machine; and 8, cutting and flaw detecting are conducted when crimping formed pipe piles reach set lengths till the pipe piles are qualified. The method is easy, good in production effect and capable of achieving diameter changing and thickness changing.

Description

technical field [0001] The invention relates to a steel pipe production technology, in particular to a technology for producing threaded pipe piles by using strip steel, in particular to a production method for threaded pipe piles with adjustable diameter and wall thickness. Background technique [0002] As we all know, pipe piles began to be produced in Europe at the beginning of the 20th century, and were quickly widely used all over the world, especially in developed industrialized countries. In the 1950s, my country first imported and used it from the former Soviet Union by the Bridge Bureau of the Ministry of Railways in the construction of railway bridge cofferdams. Due to the influence of cheap land resources and human resources, and domestic production is basically in a blank state, the application and development of ultra-long pipe piles as metal building materials in my country is still very slow. With the rapid development of my country's economy, various fast, e...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a threaded pipe pile production method with adjustable diameter and wall thickness in view of the problem that the current large-diameter pipe pile cannot realize variable thickness and diameter

Images