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A kind of hard tin-plated substrate for bottle cap and production method thereof

A technology of tin-plated substrate and production method, which is applied in the field of metallurgy, can solve the problems of large investment, high energy consumption, and decreased competitiveness of DR material products in continuous annealing production lines, and achieve the advantages of less difficulty in production control, stable performance, and low cost Effect

Active Publication Date: 2019-12-24
TANGSHAN IRON & STEEL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the continuous annealing production line has large investment and high energy consumption, which leads to a decline in the competitiveness of DR material products produced by continuous annealing

Method used

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  • A kind of hard tin-plated substrate for bottle cap and production method thereof
  • A kind of hard tin-plated substrate for bottle cap and production method thereof
  • A kind of hard tin-plated substrate for bottle cap and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A hard tin-plated substrate for bottle caps, the thickness of the finished product is 0.50mm, the chemical composition and mass percentage of the substrate are: C: 0.06%, Mn: 0.53%, Al: 0.02%, Si: 0.022%, N: 0.003%, S: 0.015%, P: 0.020%, and the balance is Fe and other unavoidable impurities.

[0039] A production method for a hard tin-plated substrate for bottle caps, the production method comprising smelting and refining, continuous casting, hot rolling, pickling, primary cold rolling, annealing, secondary cold rolling, and finishing processes, specific process steps As described below:

[0040] (1) The smelting process adopts converter smelting, fully decarburizes through top and bottom blowing, uses LF refining for deoxidation and desulfurization alloying, and uses RH refining to reduce the content of harmful gases N and H, N: 0.003%, H: 0.0001%, and then Continuous casting of slabs;

[0041] (2) Hot rolling process, 5 passes of rough rolling and 40mm thickness of...

Embodiment 2

[0049] A hard tin-plated substrate for bottle caps, the thickness of the finished product is 0.40mm, the chemical composition and mass percentage of the substrate are: C: 0.10%, Mn: 0.45%, Al: 0.08%, Si: 0.030%, N: 0.002%, S: 0.006%, P: 0.010%, and the balance is Fe and other unavoidable impurities.

[0050] A production method for a hard tin-plated substrate for bottle caps, the production method comprising smelting and refining, continuous casting, hot rolling, pickling, primary cold rolling, annealing, secondary cold rolling, and finishing processes, specific process steps As described below:

[0051] (1) The smelting process adopts converter smelting, fully decarburizes through top and bottom blowing, uses LF refining for deoxidation, desulfurization and alloying, and uses RH refining to reduce the content of harmful gases N and H, N: 0.002%, H: 0.0002%, and then Continuous casting of slabs;

[0052] (2) Hot rolling process, 5 passes of rough rolling and 38mm thickness o...

Embodiment 3

[0060] A hard tin-plated substrate for bottle caps, the thickness of the finished product is 0.30mm, the chemical composition and mass percentage of the substrate are: C: 0.07%, Mn: 0.30%, Al: 0.055%, Si: 0.015%, N: 0.005%, S: 0.001%, P: 0.008%, and the balance is Fe and other unavoidable impurities.

[0061] A production method for a hard tin-plated substrate for bottle caps, the production method comprising smelting and refining, continuous casting, hot rolling, pickling, primary cold rolling, annealing, secondary cold rolling, and finishing processes, specific process steps As described below:

[0062] (1) The smelting process adopts converter smelting, fully decarburizes through top and bottom blowing, uses LF refining for deoxidation and desulfurization alloying, and uses RH refining to reduce the content of harmful gases N and H, N: 0.005%, H: 0.0003%, and then Continuous casting of slabs;

[0063] (2) Hot rolling process, 5 passes for rough rolling, intermediate bille...

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Abstract

The invention discloses a hard tin-plated substrate for a bottle cap and a production method thereof. The substrate comprises, by weight percentage, 0.06-0.10% of carbon, 0.30-0.60% of manganese, 0.02-0.08% of aluminum, less than 0.03% of silicon, less than 0.005% of nitrogen, less than 0.02% of sulfur, less than 0.02% of phosphorus, and the balance ferrum and other inevitable impurities. The production method comprises the following steps of smelting, refining, continuous casting, hot rolling, acid pickling, one-time cold rolling, annealing, secondary cold rolling and finishing. According tothe hard tin-plated substrate and the production method, the appropriate components are designed, the process of annealing and secondary cold rolling is designed, so that the secondary cold-rolled tin-plated substrate which has relatively high hardness and relatively good elongation is produced; and the hard tin-plated substrate is low in production control difficulty, low in cost, stable in performance and suitable for producing a crown cover, a rotary opening cover and the like.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a hard tin-plated substrate for bottle caps and a production method thereof. Background technique [0002] Tin / chrome-plated plate has good formability and corrosion resistance, can be further processed by welding, seaming, stamping, etc., and has good printing and coloring properties, so it is widely used in can bodies and can lids in the packaging industry. In recent years, in order to save costs, the packaging industry requires reducing the thickness of tin / chrome plate and improving the utilization rate of packaging materials on the basis of not losing or even improving the performance. The Double Cold Reduction (DCR) process is the preferred method to obtain thinner, rougher and better flatness tin / chromium plated substrates on the basis of improving the mechanical properties of the strip, so that it can effectively realize the , Beverage, chemical cans, cove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/04C22C38/06C22C38/02C22C33/04C21D8/02
CPCC21D8/0205C21D8/0236C21D8/0268C21D2211/003C21D2211/005C22C33/04C22C38/02C22C38/04C22C38/06
Inventor 冯晓勇李建设田秀刚刘靖宝刘丽萍李梦龙路博勋郭志凯王健
Owner TANGSHAN IRON & STEEL GROUP
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