Hot-dip galvanized steel plate and preparation method thereof
A hot-dip galvanized steel sheet, hot-dip galvanizing technology, applied in hot-dip galvanizing process, coating, metal material coating process, etc., can solve the problem of high cost, achieve stable performance, excellent surface quality, and excellent formability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0024] The present invention also provides a method for preparing the above-mentioned hot-dip galvanized steel sheet, including the following steps: a slab is obtained after molten steel is smelted and continuously cast, and the slab is heated-dephosphorized-rough-rolled-finished-rolled-cooled-coiled-picked After the cold rolling-annealing-hot-dip galvanizing process, a hot-dip galvanized steel sheet is obtained.
[0025] In the preparation process of the above-mentioned hot-dip galvanized steel sheet, the hot rolling is finished in the austenite region close to Ar3, so it needs to be heated to 1150°C to 1200°C for rough rolling, so the heating temperature needs to be controlled to 1200 to 1250°C. In order to ensure the uniform temperature of the head and tail of the steel coil, the final rolling temperature should be controlled within the range of 860℃~930℃. After finishing rolling, the coil should be cooled to the temperature range of 590~670℃ to obtain a fine hot-rolled structu...
Example Embodiment
[0027] Example 1-2
[0028] The composition and preparation process of the hot-dip galvanized steel sheet of the present invention are as follows:
[0029] (1) After smelting and continuous casting processes, steel slabs with the chemical composition shown in Table 1 below are prepared:
[0030] Table 1 Chemical composition of steel slab (wt.%)
[0031] Numbering
[0032] (2) Hot rolling process parameters such as heating, rough rolling, finishing rolling, cooling, coiling, etc. are shown in Table 2 below:
[0033] Table 2 Main process parameters of hot rolling
[0034]
[0035] (3) Pickling and cold-rolling the hot-rolled coils into thin strip steel, wherein the cold-rolling reduction rates of Examples 1 and 2 are 70.3% and 61.3% respectively;
[0036] (4) The annealing and hot-dip galvanizing process parameters are shown in Table 3 below:
[0037] Table 3 Main process parameters of annealing and hot-dip galvanizing
[0038]
[0039] (5) The mechanical properties of the hot-dip galvaniz...
PUM
Property | Measurement | Unit |
---|---|---|
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap