Cold-rolled tin plate for beverage can bottom cover and production method of cold-rolled tin plate

A technology for beverage cans and tin-plated sheets, which is applied to cold-rolled tin-plated sheets for beverage can bottom lids and their production fields, can solve problems such as cracking and poor performance stability, and achieves simple process, good plate shape, and excellent stamping and forming properties. Effect

Active Publication Date: 2015-09-30
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a cold-rolled tin plate for the bottom cover of beverage cans and its production method, which mainly solves the problem of cracking of th

Method used

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  • Cold-rolled tin plate for beverage can bottom cover and production method of cold-rolled tin plate
  • Cold-rolled tin plate for beverage can bottom cover and production method of cold-rolled tin plate
  • Cold-rolled tin plate for beverage can bottom cover and production method of cold-rolled tin plate

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Embodiment Construction

[0039] This implementation selects product specification to be 0.18mm*836mm, below in conjunction with embodiment 1~4 and comparative example---the Chinese patent application number is disclosed in the patent application of CN200510027291.4, the present invention is further described, as table 1~table 4 shown.

[0040] element C Si mn P S Alt N Ti O this invention 0.065~0.085 0.005~0.034 0.20~0.30 ≤0.018 ≤0.015 0.065~0.085 ≤0.004 Example 1 0.080 0.034 0.20 0.010 0.006 0.077 0.0040 Example 2 0.066 0.020 0.23 0.016 0.015 0.085 0.0029 Example 3 0.073 0.006 0.30 0.018 0.013 0.065 0.0023 Example 4 0.085 0.018 0.26 0.015 0.009 0.069 0.0032 comparative example ≤0.006 ≤0.03 0.1 ~0.2 ≤0.015 ≤0.015 0.025~0.075 ≤0.0030 0.03~0.08 ≤0.0040

[0041]

[0042] Continuous casting slabs meeting the required chemical composition are obtained through converter smelting,...

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Abstract

The invention relates to a cold-rolled tin plate for a beverage can bottom cover and a production method of the cold-rolled tin plate to mainly solve the technical problems that the existing cold-rolled tin plate for the beverage can bottom cover generates cracks and is poor in performance stability in the stamping forming process of manufacturing the beverage can bottom cover. The production method comprises the following steps: smelting according to components; preparing a hot-rolled steel coil by sequentially adopting molten iron desulfurization, converter top and bottom combined blowing, ladle bottom blowing of argon or LF furnace refining, whole process of Ar blowing for protecting casting, plate blank heating furnace heating, rough rolling, finish rolling and coiling; and then uncoiling newly, and performing acid cleaning, cold rolling, annealing by using a vertical continuous annealing furnace, electro-tinning and coiling to obtain a finished product with the thickness of 0.17-0.20mm, wherein the finish rolling temperature is 851-879 DEG C, the hot rolling coiling temperature is 640-660 DEG C, the cold rolling reduction ratio is 70-79%, the temperature range of the strip steel in a rolling hard state after cold rolling in a soaking zone of the vertical continuous annealing furnace is 560-580 DEG C, and the soaking time of the strip steel in the vertical continuous annealing furnace is 95-105s. The cold-rolled tin plate provided by the invention is mainly used for preparing the beverage can bottom cover.

Description

[0001] technical field [0002] The invention relates to a cold-rolled tinplate and a production method thereof, in particular to a cold-rolled tinplate for a beverage can bottom cover and a production method thereof. [0003] Background technique [0004] The tinplate for the bottom cover of beverage cans needs to be stamped and deformed during the processing and forming process, so there are high requirements for the strength, hardness and uniformity of performance of the materials used. In the production process of the bottom cover of beverage cans, if the strength If it is lower than or higher than the specified requirements, it will directly affect the processing efficiency and product quality of the product, especially when the strength of the entire batch of steel coils cannot be kept uniform and stable, cracks and other waste defects will easily occur in the subsequent cold deformation process such as stamping. Reduce the finished product rate and increase the produ...

Claims

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Application Information

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IPC IPC(8): C22C38/06C21D8/02
Inventor 韩孝永
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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