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

Warm machining method for making titanium or Ti-alloy pipe

A titanium alloy tube, warm processing technology, applied in the direction of metal rolling, can solve the problems of poor internal and external surface quality, influence, large investment and so on

Inactive Publication Date: 2003-01-15
JIANGSU XINGRONG HI TECH
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its yield is higher than that of the piercing and rolling method (method 1), its internal and external surface quality is poor and its use is limited
And it needs a large extruder, which requires a huge investment, but it is rarely used now
Moreover, the above-mentioned three methods in the prior art have not treated the surface of the tube blank, and the defects existing in the surface layer of the tube blank will inevitably be rolled into the structure of the tube body in the subsequent rolling engineering. ; and its processing is carried out in the air, and the oxide scale formed on the surface will inevitably be rolled into the matrix, and will have a destructive effect and influence on the quality of the finished pipe

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 Construction

[0016] The present invention will be further described through the following specific embodiments, so that the technical solutions and features of the present invention to achieve its purpose can be understood more clearly.

[0017] One of the specific embodiments of the present invention, rolling is that the grade is TA 2 Titanium hollow tube produced by casting method. Rolling is carried out on the improved XR-SG90 three-roll planetary rolling tube. The initial size of the tube blank is φ90×25mm. Before rolling, the tube blank is processed by special milling equipment with three heads, and the cutting depth is 0.3mm, so that the surface of the tube blank is flawless and bright. Then preheat on-line, using argon protection electric induction coil to heat, so that the 200mm head of the tube blank is preheated to 900°C, and the rest is preheated to 500°C to 600°C. Then import the improved XR-SG90 three-roller planetary pipe mill for rolling processing. After the superimposi...

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

A warm machining technology for making Ti or Ti-alloy pipe includes such steps as machining surface of pipe blank, preheating to a temp between ambient temp and recrystallizing temp, high-speed rolling at temp higher than recrystallizing temp, and fast cooling. Its advantages are simple process, high utilization rate of material, low cost and high quality.

Description

technical field [0001] The invention belongs to the metal pipe rolling technology. Specifically speaking, it is a kind of continuous casting or perforated titanium and titanium alloy hollow tube billet, which is processed by surface machining, purified and preheated, using the principle of warm processing and deformation heat treatment. In rolling with high elongation coefficient and high deformation rate, after dynamic recrystallization occurs, online rapid cooling is performed to process and manufacture titanium and titanium alloy pipes. Background technique [0002] The existing methods for processing and manufacturing titanium and titanium alloy pipes include perforated billet rolling method, titanium and titanium alloy strip forming welding method and extrusion method. The piercing and rolling method is to cast titanium and titanium alloys into a solid billet, forge a long billet with a precision forging machine, heat it, send it to a 2-roll or 3-roll piercer to wear i...

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): B21B9/00B21B19/00B21B23/00B21C23/08B23P13/00C22F1/14
Inventor 肖克建田福生祁威
Owner JIANGSU XINGRONG HI TECH
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