Chromium-plated plate, preparation method thereof and crown cover
A technology of chrome plating and substrate, applied in the field of cold rolling of steel strip, can solve the problems of high sensitivity of steel plate structure, influence of steel plate performance, unstable annealing process, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0044] The present invention also provides a preparation method for the chrome-plated plate described in the above scheme, comprising the following steps:
[0045] Smelting, refining and slab continuous casting are carried out sequentially on the substrate raw materials to obtain continuous casting slabs;
[0046] hot-rolling the continuous casting slab to obtain a hot-rolled plate;
[0047] Pickling the hot-rolled sheet and then carrying out cold-rolling to obtain a cold-rolled sheet;
[0048] Performing secondary cold rolling on the cold-rolled sheet after continuous annealing to obtain a substrate;
[0049] Chromium plating is performed on the surface of the substrate to obtain a chrome-plated plate.
[0050] In the invention, the raw material of the base plate is smelted, refined, and slab continuous casting in sequence to obtain the continuous casting slab. The present invention has no special requirements on the raw materials of the substrate. According to the composi...
Embodiment 1
[0062] (1) The raw material of the substrate is smelted by converter, refined by LF, and then continuously casted to obtain a continuous casting slab with a thickness of 200mm; the chemical composition of the substrate is: C: 0.061%, Mn: 0.516%, Si: 0.02%, P : 0.016%, S: 0.013%, Al: 0.032%, N: 0.0038%, the balance of iron, residual elements and unavoidable impurity elements;
[0063] (2) Heat the continuous casting slab to 1250°C, after five passes of rough rolling, the thickness of the intermediate slab is 40mm, the inlet temperature of finish rolling is 1035°C, after seven passes of finish rolling, the final rolling temperature is 890°C, and the exit thickness is 3.0mm , and the final coiling temperature is 600°C to obtain a hot-rolled sheet;
[0064] (3) The hot-rolled sheet is cold-rolled, the total reduction ratio of the cold-rolling is 90.3%, and the thickness of the cold-rolled sheet is 0.29 mm.
[0065] (4) The cold-rolled sheet is continuously annealed in a continuou...
Embodiment 2
[0072] (1) The raw material of the substrate is smelted by converter, refined by LF, and then continuously casted to obtain a continuous casting slab with a thickness of 200 mm; the chemical composition of the substrate is: C: 0.043%, Mn: 0.48%, Si: 0.02%, P : 0.0158%, S: 0.0194%, Al: 0.042%, N: 0.0042%, the balance of iron, residual elements and unavoidable impurity elements;
[0073] (2) Heat the continuous casting slab to 1230°C, after five passes of rough rolling, the thickness of the intermediate slab is 40mm, the entrance temperature of finish rolling is 1035°C, after seven passes of finish rolling, the final rolling temperature is 890°C, and the exit thickness is 3.0mm , and the final coiling temperature is 620°C to obtain a hot-rolled sheet;
[0074] (3) The hot-rolled sheet is cold-rolled, the total reduction ratio of cold-rolling is 90.6%, and the thickness of the cold-rolled sheet is 0.283mm.
[0075] (4) The cold-rolled sheet was continuously annealed in a continu...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More