Low-bursting-rate pure titanium seamless pipe for metal corrugated pipe and production process of low-bursting-rate pure titanium seamless pipe
A metal bellows and production process technology, applied in metal processing equipment, metal rolling, metal rolling and other directions, can solve the problems of insufficient limit flaring rate, high melting point of inclusions, uneven distribution of deformation stress, etc. Excellent process performance, high room temperature elongation, uniform structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0035] Low burst rate pure titanium The cold rolling process of seamless pipes is as follows: cross rolling piercing The tube blank is subjected to 3 passes of two-roll cold rolling (pass processing rate is controlled at 55% to 80%, Q value 0.9 to 1.5) and 1 multi-roll cold rolling (pass processing rate is 27.84%, Q value is 1.87), The annealing temperature of the intermediate product is 650-700°C×90-120min, and the annealing temperature of the finished product is 700×90min. After testing the finished product, the tensile strength at room temperature is 341MPa, the yield strength is 193MPa, the elongation rate is 60%, the ultimate flaring rate reaches 60%, the grain size reaches grade 6, and the bursting rate of the bellows is 2.8%.
Embodiment 2
[0037] Low burst rate pure titanium The cold rolling process of seamless pipes is as follows: cross rolling piercing The tube blank is subjected to 3 passes of two-roll cold rolling (pass processing rate is controlled at 55%-80%, Q value 0.9-1.5) and 1 multi-roll cold rolling (pass processing rate is 39.78%, Q value is 2.83), The annealing temperature of the intermediate product is 650-700°C×90-120min, and the annealing temperature of the finished product is 650×90min. After testing the finished product, the tensile strength at room temperature is 352MPa, the yield strength is 201MPa, the elongation is 66%; the ultimate flaring rate is 68%, the grain size is 7 grades;
Embodiment 3
[0039] Low burst rate pure titanium The cold rolling process of seamless pipes is as follows: cross rolling piercing The tube blank is subjected to 3 passes of two-roll cold rolling (pass processing rate is controlled at 55% to 80%, Q value 0.9 to 1.5) and 1 multi-roll cold rolling (pass processing rate is 39.56%, Q value is 1.71), The annealing temperature of the intermediate product is 650-700°C×90-120min, and the annealing temperature of the finished product is 650×90min. After testing the finished product, the tensile strength at room temperature is 360MPa, the yield strength is 213MPa, and the elongation is 68%.
[0040] Compared with the best prior art, the pure titanium seamless pipe produced by the present invention has uniform and moderate grain size (grain size 6-7), high elongation at room temperature (elongation ≥ 50%), thick wall Uniform (± 5% t), excellent process performance (limit flaring rate of more than 60%) and other advantages, the bursting rate of the...
PUM
Property | Measurement | Unit |
---|---|---|
yield strength | aaaaa | aaaaa |
yield strength | aaaaa | aaaaa |
tensile strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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