Weldless special pipe hoop for well pipe and manufacturing method thereof

A technology with no welds and special-shaped pipes, applied in metal rolling, drinking water installations, water supply installations, etc., can solve problems such as complex operations, quality defects, and rough products, and achieve high mechanization, large production batches, and high product quality. Good results

Inactive Publication Date: 2011-04-20
清苑县清泉水泥制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is complicated to operate, the production batch is small, the product is rough, time-consuming and labor-intensive, and the product is prone to welding quality problems, resulting in quality defects in Chengjing

Method used

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  • Weldless special pipe hoop for well pipe and manufacturing method thereof
  • Weldless special pipe hoop for well pipe and manufacturing method thereof
  • Weldless special pipe hoop for well pipe and manufacturing method thereof

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Embodiment Construction

[0012] refer to Figure 1-Figure 3 The invention relates to a non-welded special-shaped pipe hoop for well pipes, which is an annular steel hoop. There is a boss 1 inside the steel hoop; with the boss 1 as the boundary, one side of the steel hoop is a connecting end 2, which is used to connect another well pipe; the outer side of the top of the connecting end 2 has a groove 2.1; the steel hoop The other side of the steel hoop is connected to the well pipe end 3; on the outside of the steel hoop, there is a groove 4 opposite to the boss 1, and the groove 4 is combined with the mold when the well pipe is used to play a tension effect.

[0013] The invention manufactures non-welded special-shaped pipe hoops for well pipes, and is formed by rolling at one time. In order to realize the technical solution of the above-mentioned non-welded pipe collar, the method is to put the heated pipe collar blank on the mandrel, and use the motor to drive the main mold to rotate. While rotating...

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Abstract

The invention relates to a weldless special pipe hoop for a well pipe and a manufacturing method thereof. The pipe hoop is an annular steel hoop; a boss is arranged on the inner side of the steel hoop; with the boss as the boundary, one side of the steel hoop is an end in connection with other well pipe, and the other side of the steel hoop is an end for connecting the steel hoop with the well pipe to form the well pipe; a bevel edge is formed on the outer side of the top of the connection end; and a groove is formed on the outer side of the steel hoop opposite to the boss. In the manufacturing method of the pipe hoop, the pipe hoop blank is rolled and formed at a time by a rolling method. Without the processes such as cutting, coil stewing, reshaping and welding, the pipe hoop manufacturing method is simple to operate, and has the advantages of one-time rolling and forming, high mechanical degree, large production lot size, good product quality and time and labor saving while ensuring no welding quality problem of the product as welding joint does not exist.

Description

technical field [0001] The invention relates to a non-welded special-shaped pipe hoop for well pipes in the field of prestressed reinforced concrete well pipe manufacture and a manufacturing method thereof. Background technique [0002] Existing well pipe hoop mostly adopts the rolled thickness as a first-class hot-rolled flat steel bar, which is cut, simmered, shaped, and welded into a ring. This method is complicated to operate, the production batch is small, the product is rough, time-consuming and labor-intensive, and the product is prone to welding quality problems, resulting in quality defects in Chengjing. Contents of the invention [0003] The present invention aims to overcome the deficiencies of the above-mentioned technologies, and provides a directly formed seamless special-shaped pipe ferrule and a manufacturing method thereof. [0004] The non-welded special-shaped pipe hoop for the well pipe of the present invention is an annular steel hoop; there is a boss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/16B21B17/02
Inventor 张春奇
Owner 清苑县清泉水泥制品有限公司
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