A thin-coated cold-rolled tin-plated steel sheet and its manufacturing method
A technology of tin-coated steel sheet and manufacturing method, which is applied in the field of cold-rolled tin-coated steel sheet and its manufacture, cold-rolled tin-coated steel sheet with thin coating and its manufacture, can solve the problems of rough tin layer, affecting the compactness of coating layer, etc. Iron point, simple realization method, high porosity effect
Active Publication Date: 2019-09-17
SHANGHAI MEISHAN IRON & STEEL CO LTD
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Problems solved by technology
However, judging from the published plating solution formula, the concentration of each component is relatively high, especially the main salt concentration. This type of plating solution is more suitable for electroplating with high tin content. It is used in 2.8g / m 2 The tin layer is prone to roughness in the following coatings, which affects the compactness of the coating
Method used
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Embodiment Construction
[0042] The present invention will be further described below in conjunction with Examples 1-4.
[0043] Table 1 shows the chemical composition (by weight percentage) of the cold-rolled hard steel plate of the embodiment of the present invention, the balance being Fe and unavoidable impurities.
[0044] Table 1 The chemical composition of the cold-rolled hard steel plate of the embodiment of the present invention, unit: weight percent
[0045]
[0046] For the above thickness of 0.17 ~ 0.35mm, lower yield strength R PL Annealing and smoothing the cold-rolled hard steel plate of 750-850MPa in a vertical continuous annealing furnace; the annealing process is: the annealing (soaking section) temperature of the steel plate in the vertical continuous Section) time: 60s~120s; leveling process: use double-stand four-roller wet leveling, work rolls use chrome-plated rolls, 1-stand work rolls use EDM texturing rolls with a roughness of Ra1.2~1.6um, The rolling force is 500-600t; th...
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Abstract
The invention relates to a thin plating type cold-rolled tinned steel plate and a manufacturing method thereof, and aims at solving the technical problem of high porosity of a tinned layer of a cold-rolled tinned steel plate of which the thinned layer on one surface is 0.9-2.2g / m<2> in weight. The thin plating type cold-rolled tinned steel plate is characterized in that a base plate comprises the following chemical components in percentage by weight: 0.05-0.10% of C, not greater than 0.04% of Si, 0.2-0.4% of Mn, not greater than 0.02% of P, not greater than 0.02% of S, 0.02-0.05% of Alt, not greater than 0.004% of P, not greater than 0.0035% of N, and the balance Fe and inevitable impurity elements. The thin plating type cold-rolled thinned steel plate is mainly applied to the packing fields such as the beverage and food tin packing field.
Description
technical field [0001] The invention relates to a cold-rolled tin-plated steel sheet and a manufacturing method thereof, in particular to a thin-coated cold-rolled tin-plated steel sheet and a manufacturing method thereof, in particular to a single-side tin-coated steel sheet with a weight of 0.9-2.2 g / m 2 A cold-rolled tin-plated steel sheet and a manufacturing method thereof belong to the technical field of iron-based alloys. Background technique [0002] With the rise of the price of metal tin and from the perspective of saving metal resources, under the premise of ensuring the surface characteristics of tinplate, the tin layer of tinplate is developing towards thinning. The current mainstream product is 2.8g / m 2 And less than 2.8g / m 2 The tin layer is mainly used for beverage and food can bodies and top and bottom covers. Only when it is used for some food cans with strong electrochemical detinning effect, the amount of tin plating should be higher than 5.6g / m 2 thick ...
Claims
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IPC IPC(8): C22C38/02C22C38/04C22C38/06C21D1/26C25D3/32C25D5/36C25D5/50
Inventor 许姣姣穆海玲刘洪韩孝永
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD