Piercing plug for manufacturing seamless tube

A technology for perforated plugs and seamless pipes, which is used in manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of unsatisfactory cooling and scouring effects on the inner wall of the pipe, and achieve the effect of improving the quality of the inner wall.

Pending Publication Date: 2021-03-26
ZHANGJIAGANG FREE TRADE ZONE HENGLONG STEEL TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is only one water hole on the existing plug, the cooling and scouring effect on the inner wall of the pipe is not ideal. Such a plug is only suitable for manufacturing seamless pipes with lower quality requirements on the inner wall of the pipe.

Method used

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  • Piercing plug for manufacturing seamless tube
  • Piercing plug for manufacturing seamless tube
  • Piercing plug for manufacturing seamless tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a perforated plug for manufacturing a seamless pipe includes: a conical body 1, the side surface of the conical body 1 is set to a curved surface, the head of the conical body 1 is rounded, and the conical body 1 is provided with a The water channel 3 arranged along the axis of the tapered body 1 is provided with a mounting screw hole 2 on the center of the rear end face of the tapered body 1. The mounting screw hole 2 is used to enable the perforated plug to be fixed on the top of the mandrel; the mounting screw hole 2 is located at the top of the mandrel. The rear of the water channel 3 is connected with the water channel 3. The front end of the water channel 3 does not penetrate through the conical body 1, and three water holes are provided on the side wall...

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Abstract

The invention discloses a piercing plug for manufacturing a seamless tube. The piercing plug comprises a conical body, a water channel is arranged in the conical body, an installation threaded hole isformed in the center of the tail end face of the conical body, the installation threaded hole is located behind the water channel and communicates with the water channel, and the front end of the water channel does not penetrate through the conical body; and three water holes communicating with the water channel are formed in the side wall of the conical body and are the first water hole, the second water hole and the third water hole, the axes of the three water holes are located on three faces capable of equally dividing the conical body into three parts respectively, and the first water hole, the second water hole and the third water hole incline towards the head of the conical body. According to the piercing plug, due to the fact that the three water holes are formed and the axial positions, the inclination angles and the circumferential distribution of the water holes are strictly limited, the piercing plug can well cool and scour the inner wall of the tube, and therefore the quality of the inner wall of the seamless tube can be greatly improved.

Description

technical field [0001] The invention relates to the field of steel pipe perforation tooling, in particular to a perforated plug used for manufacturing seamless pipes. Background technique [0002] The seamless tube is made by perforating the heated round steel. When perforating, the round steel is perforated with a plug. The structure of the existing perforated plug includes: a conical body, in which there are arranged along the axis of the conical body. The water channel is provided with a mounting threaded hole on the center of the end face of the tapered body. The mounting screw hole is located at the back of the water channel and communicated with the water channel. The front end of the water channel does not penetrate the tapered body. A water hole is connected with the water channel, so that the water in the water channel can be sprayed from the water hole to cool and wash the inner wall of the perforated pipe. Since there is only one water hole on the existing plug, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B25/04
CPCB21B25/04
Inventor 程锡铭
Owner ZHANGJIAGANG FREE TRADE ZONE HENGLONG STEEL TUBE
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