Cold drawing mold for producing seamless steel tubes

A technology of seamless steel pipes and molds, applied in the direction of wire drawing dies, etc., can solve the problems of low economic utilization rate, poor versatility, fixed diameter and size of seamless steel pipes, etc., and achieves the effect of strong versatility and high economic utilization rate.

Inactive Publication Date: 2015-05-20
ZHANGJIAGANG XINGYE STEEL TUBE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are some deficiencies in the structural design of most existing cold drawing dies. The cold drawing die sleeves and cold drawing cores of most cold drawing dies are integrally formed, resulting in the seamless steel pipes produced by the cold drawing dies. The diameter size is fixed, the versatility is poor, and the economic utilization rate is not high

Method used

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  • Cold drawing mold for producing seamless steel tubes

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Embodiment Construction

[0013] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0014] Such as figure 1 As shown, the cold drawing die for producing seamless steel pipes has a cold drawing die sleeve 1 and a cold drawing core 2. The cold drawing die sleeve 1 is provided with a rectangular left cavity 1-1 and a dovetail communicating with it. Right chamber 1-2, the cold-drawn mold core 2 enters from the rectangular left chamber 1-1 and is clamped in the dovetail-shaped right chamber 1-2. The cold-drawn mold core 2 is provided with an isosceles trapezoidal left cavity Chamber 2-1 and the rectangular right chamber 2-2 connected with it, the cold drawing mold core 2 is fixed in the cold drawing mold sleeve 1 by a number of fastening bolts 3; the width...

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Abstract

The invention relates to the technical field of cold drawing molds, and particularly relates to a cold drawing mold for producing seamless steel tubes. The cold drawing mold is provided with a cold drawing mold sleeve and a cold drawing mold core, wherein the cold drawing mold sleeve is internally provided with a left rectangular chamber and a right dovetail-shaped chamber communicated with the left rectangular chamber; the cold drawing mold core enters from the left rectangular chamber and is clamped by the right dovetail-shaped chamber; the cold drawing mold core is internally provided with a left isosceles trapezoid chamber and a right rectangular chamber communicated with the left isosceles trapezoid chamber, and is fixed in the cold drawing mold sleeve by a plurality of fastening bolts; the width of the left rectangular chamber is greater than or equal to the diameter of the cold drawing mold core; the left side width of the right dovetail-shaped chamber is less than the diameter of the cold drawing mold core. The cold drawing mold for producing the seamless steel tubes can be used for producing the seamless steel tubes with different diameters, and is relatively high in universality.

Description

Technical field [0001] The invention relates to the technical field of cold drawing molds, in particular to a cold drawing mold for producing seamless steel pipes. Background technique [0002] Seamless steel pipes have a hollow section and are used as pipelines for transporting fluids, such as oil, natural gas, coal gas, water and certain solid materials. Compared with solid steel such as round steel, seamless steel pipes are lighter under the same bending and torsion strength; at the same time, seamless steel pipes are also widely used to manufacture structural parts and mechanical parts, such as oil drill pipes. , Automobile transmission shafts, bicycle frames and steel scaffolding used in construction, etc., with high material utilization, simple manufacturing procedures and reduced processing man-hours. [0003] It is precisely because of the special use of seamless steel pipes that various production equipment are needed in the production of seamless steel pipes. Cold drawn ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C3/04
CPCB21C3/04
Inventor 李胜成
Owner ZHANGJIAGANG XINGYE STEEL TUBE
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