Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Steel tube rolling process

A process and steel pipe technology, applied in the field of steel pipe rolling process, can solve problems such as difficulty, and achieve the effects of high utilization rate, improved production efficiency, and less investment

Inactive Publication Date: 2018-02-27
孙超
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the production problem that the production of thin-walled seamless steel pipes cools quickly during the rolling process and is difficult to re-roll, changes the unreasonable product structure of cold-drawn instead of hot-rolled in the production of thin-walled seamless steel pipes, and can reduce energy consumption and reduce production costs. Reduce equipment investment costs and improve the efficiency of producing seamless steel pipes

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steel tube rolling process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Example: combined as figure 1 As shown, the steel pipe rolling process example of the present invention is further described: the steel pipe rolling process is characterized in that it comprises the steps:

[0025] 1) Heating, heating the tube billet with a diameter of 50-100 mm to above 1150 °C in a heating furnace;

[0026] 2), piercing, the heated tube blank is pierced by a piercing machine to make a capillary tube with an outer diameter of 53-103 mm;

[0027] 3) Second soaking, sending the perforated capillary into the inclined-bottom heating furnace for short-term heating;

[0028] 4) Rolling, the capillary tube after the second soaking is put on the stop mandrel, and then through the three-roll skew rolling mill for diameter reduction, wall reduction, and extension rolling to form a blank tube, which is relatively , diameter reduction is 10-15 mm, wall reduction is 0.5-1 mm, elongation rolling elongation is 1.2);

[0029] 5) Remove the tube, the unrolled tube a...

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 relates to a steel pipe rolling process, which includes the following steps: heating, heating the tube blank in a heating furnace to above 1150°C; piercing, and piercing the heated tube blank through a piercing machine to make a capillary tube; Heating, sending the perforated capillary into an inclined-bottom heating furnace for short-term heating; rolling, putting the capillary after the second soaking on the stop mandrel, and then passing through a three-roll cross-rolling machine for shrinkage Diameter, wall reduction, extension and rolling to form a waste tube; stripping, the rolled waste tube is released from the restraining mandrel; sizing and shaping, sizing and shaping to form a hot finished tube; cooling, hot finished tube Cooling through the stepping cooling bed; the finished product is collected, which solves the production problem that the production of thin-walled seamless steel pipes cools quickly during the rolling process and is difficult to re-roll, and changes the production of thin-walled seamless steel pipes by cold drawing instead of hot rolling. Unreasonable product structure can reduce energy consumption, reduce equipment investment costs, and improve the efficiency of producing seamless steel pipes.

Description

Technical field: [0001] The invention belongs to the technical field of steel pipe rolling technology, and in particular relates to a steel pipe rolling technology. Background technique: [0002] After years of development in my country, the production capacity and output of seamless steel pipes have ranked first for several consecutive years. There are various types of seamless steel pipe hot-rolling and cold-drawing units in China. Due to historical development, the technical layout is uneven, and backward cold-drawing units and technologies occupy a large proportion. Especially in the technical field of thin-walled seamless steel pipe production, because the capillary temperature after piercing is too low, it cannot be hot-rolled. Therefore, traditional piercing and cold drawing processes are still used, and its high energy consumption, low yield, and serious environmental pollution have seriously affected the improvement of seamless steel pipe production and manufacturi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B21B23/00
CPCB21B23/00
Inventor 孙超
Owner 孙超
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com