Unlock instant, AI-driven research and patent intelligence for your innovation.

Drawing process of ultralong finished pipe

A drawing process and finished product technology, applied in the direction of drawing dies, etc., can solve the problems of die ejection, inability to complete the contract requirements, poor effect of super-long tubes, etc., and achieve the effect of simple operation.

Active Publication Date: 2014-08-13
SHANXI TAIGANG STAINLESS STEEL CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Small tube contracts often require a length of more than 13m. According to the current drawing device capacity, the contract requirements cannot be fulfilled at all. At present, the maximum drawing capacity of the drawing machine is 12.5m, so it is necessary to increase the drawing capacity of the drawing machine to meet the needs of users. requirements
[0003] At present, in the drawing process, the mold with the steel pipe is directly placed on the drawing trolley, which is easy to operate and has a small workload, but the effect is not good when drawing an ultra-long pipe, and the steel pipe is severely bent after drawing, and the drawing process The middle mold will pop out

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] The maximum stroke of the drawing trolley before improvement is 12.5m, so the maximum drawing length can only be 12.5m, which cannot meet the production requirements of the process. After the improvement, it can draw steel pipes up to 16m in length.

[0021] After deformation, the length is less than the stroke of the drawing trolley, so it can be drawn; if the deformed length is greater than the stroke of the drawing trolley, it cannot be drawn normally, and the drawing production is carried out according to the improvement.

[0022] In this embodiment, the length of the feed material is 11m as an example:

[0023] Deformation elongation of steel pipe = (outer diameter of incoming material - wall thickness of incoming material) * wall thickness of incoming material / (outer diameter of finished product - wall thickness of finished product) / wall thickness of finished product = 1.45;

[0024] Length after drawing = incoming length * deformation elongation = 11m * 1.45...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a drawing process of an ultralong finished pipe and belongs to the technical field of preparation of ultralong pipes. The drawing process comprises the following steps: firstly, a drawing cart is used for normally drawing a steel pipe; when certain length is achieved, a drawing outer mold and the drawn steel pipe are placed on a core rod cart together; two round pipes on the core rod cart play roles in aligning and supporting; the drawing outer mold is fixed under the action of upper channel steel and a lower support and is drawn by the drawing cart. The drawing process disclosed by the invention has the advantages that the maximum drawing length of a drawing machine is greatly increased, and the requirement of a user for increasing the length of the steel pipe can be met; the straightness of the drawn steel pipe can be guaranteed; the operation is simple, convenient, safe and reliable.

Description

technical field [0001] The invention relates to a drawing process of an ultra-long finished tube, and belongs to the technical field of ultra-long tube preparation. Background technique [0002] Small tube contracts often require a length of more than 13m. According to the current drawing device capacity, the contract requirements cannot be fulfilled at all. At present, the maximum drawing capacity of the drawing machine is 12.5m, so it is necessary to increase the drawing capacity of the drawing machine to meet the needs of users. requirements. [0003] At present, in the drawing process, the mold with the steel pipe is directly placed on the drawing trolley, which is easy to operate and has a small workload, but the effect is not good when drawing an ultra-long pipe, and the steel pipe is severely bent after drawing, and the drawing process The medium mold will pop out. Contents of the invention [0004] The invention provides a drawing process for ultra-long finished ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B21C1/24B21C3/12
Inventor 黎毅康喜唐王彦忠侯楠郝宝红
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD