Technology for eliminating withdrawing and straightening lines on surface of galvanized door plate steel
A door plate steel and process technology, applied in the field of eliminating the surface tension and straightening of galvanized door plate steel, can solve the problems of serious surface tension and straightening, the treatment and control are not fully effective, and improve product quality and quality, and the surface quality is good. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0020] A process for eliminating the surface tension and straightening of galvanized door steel, the selected process route is: pickling - rolling mill - hood annealing - leveling - galvanizing;
[0021] 1) The weight percent of each chemical component in the selected galvanized door steel is C ≤ 0.01, Si ≤ 0.04, Mn 0.15-0.25, P ≤ 0.02, S ≤ 0.015, Al 0.015-0.055, N ≤ 0.004, B 0.001- 0.002;
[0022] 2) Conventional control points for cold-rolling pickling and rolling mills: control of cold-rolling pickling solution to ensure that the iron oxide scale on the surface of the strip is cleaned and pickled. The heating temperature of the conventional process of hot rolling is 1125-1185℃, the final rolling temperature is 870±20℃, the cooling mode is rapid cooling in the rear section, and the coiling temperature is 640±20℃; the main points of the bell annealing process are:
[0023]
[0024] 3) Design of the process parameters of the skin pass mill: The main purpose of the strip st...
PUM
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.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap