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A kind of production method of spcc material deep drawing tin-plated substrate

A technology of a tin-plated substrate and a production method, which is applied in the production field of SPCC material deep-drawing tin-plated substrates, can solve the problems that the use requirements of deep-drawing products cannot be met, the steel coil is seriously stuck to the steel, and the production difficulty is large, and the finished product can be improved. The effect of reducing the production difficulty and reducing the production difficulty

Active Publication Date: 2021-10-15
HENGSHUI STRIP ROLLING OF HEBEI IRON & STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using SPHC raw materials, the tin-plated substrate produced by conventional one-time bell annealing after rolling, must be annealed at high temperature in pursuit of formability, but the steel coil sticks to steel after high temperature annealing, making subsequent production difficult and the yield rate is low. Moreover, the tinned substrate products produced by this kind of process are limited by the mask annealing method and raw material materials. Their stamping performance can be used for some products with lower stamping requirements, but it cannot meet the requirements of deep-drawing products.

Method used

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  • A kind of production method of spcc material deep drawing tin-plated substrate
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  • A kind of production method of spcc material deep drawing tin-plated substrate

Examples

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Effect test

Embodiment 1

[0017] Example 1: The chemical composition and mass percentage of the SPCC material hot-rolled steel coil: C 0.03%, Mn0.30%, Si 0.03%, P 0.02%, S 0.01%, and the balance is Fe and unavoidable Impurities.

[0018] The production method of the tin-plated substrate for deep drawing of SPCC material adopts the following specific process steps.

[0019] Use ordinary SPHC material 2.75mm hot-rolled steel coil; the hot-rolled steel coil is subjected to the first cold-rolling treatment by the HC reversible cold-rolling machine, and is cold-rolled into a steel plate with a thickness of 0.75mm; then put into the full-hydrogen hood In the annealing furnace, heat up to 640°C at a rate of 100°C / h, hold for 16 hours, cool down to 500°C with the furnace after the heat preservation is over, replace the heating cover with a cold air cover, cool to 350°C with air, and then cool to 250°C with the furnace ℃, start water cooling until it cools to 80 ℃, and then come out of the furnace; then return...

Embodiment 2

[0023] Example 2: The chemical composition and mass percentage of the SPCC material hot-rolled steel coil: C 0.07%, Mn0.15%, Si 0.01%, P 0.01%, S 0.009%, the balance is Fe and unavoidable Impurities.

[0024] The production method of the tin-plated substrate for deep drawing of SPCC material adopts the following specific process steps.

[0025] The 2.5mm hot-rolled steel coil of ordinary SPHC material is used; the hot-rolled steel coil is subjected to the first cold rolling treatment by the HC reversible cold rolling mill, and is rolled into a steel plate with a thickness of 0.70mm through three passes; In the bell-type annealing furnace, heat to 650°C at a rate of 100°C / h, hold for 15 hours, cool down to 500°C with the furnace after the heat preservation is over, replace the heating cover with a cold air cover, air cool to 350°C, and then cool with the furnace To 250 ℃, start water cooling, until cooled to 80 ℃, out of the furnace; then return to the HC reversible cold rolli...

Embodiment 3

[0028] Example 3: The chemical composition and mass percentage of the SPCC material hot-rolled steel coil: C 0.05%, Mn0.22%, Si 0.02%, P 0.011%, S 0.007%, and the balance is Fe and unavoidable Impurities.

[0029] The production method of the tin-plated substrate for deep drawing of SPCC material adopts the following specific process steps.

[0030] Use ordinary SPHC material 2.35mm hot-rolled steel coil; the hot-rolled steel coil is subjected to the first cold-rolling treatment through the HC reversible cold-rolling machine, and is rolled into a steel plate with a thickness of 0.65mm through three passes; then put into a full-hydrogen cover In the type annealing furnace, heat up to 660°C at a rate of 100°C / h, hold for 14 hours, and cool to 500°C with the furnace after the heat preservation is over, replace the heating cover with a cold air cover, air cool to 350°C, and then cool with the furnace to 250°C, start water cooling until it cools to 80°C, and then come out of the f...

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Abstract

The invention discloses a production method of a tin-plated substrate for deep drawing of SPCC material, which uses SPHC material hot-rolled steel coil as raw material; first cold rolling, then bell annealing, and second cold rolling , and then mask annealing again, and finally flattening, the tinned substrate can be obtained. This method combines two times of cold rolling and two times of bell annealing. On the premise of increasing the yield, the stamping performance of SPCC tinned products is improved, and the downstream customers are greatly reduced in the production of products with stamping requirements. The probability of wrinkling, cracking and defective skirt defects will increase the market competitiveness of the product.

Description

technical field [0001] The invention belongs to the fields of metal material processing and metal heat treatment, in particular to a production method of a tinned substrate for SPCC material deep drawing. Background technique [0002] Due to its good corrosion resistance, excellent solderability, good printing performance and is a recyclable material, tinplate is widely used in packaging fields such as food cans and beverage cans, and is favored by consumers and recognized by the market degree is gradually increasing. [0003] With the increase of individual demand in the market, some large deformation and stamping-resistant products often appear in tinplate packaging products, which put forward higher requirements for the mechanical properties of tinplate, and the mechanical properties of tinplate are affected by cold rolling. The annealing process and the original material of the hot-rolled coil have a great influence. So far, conventional SPCC tin-plated products in the...

Claims

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Application Information

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IPC IPC(8): C21D8/02C21D1/26C22C38/04C22C38/02
CPCC21D1/26C21D8/0236C22C38/002C22C38/02C22C38/04
Inventor 龚志强李虎刘连喜刘建兵
Owner HENGSHUI STRIP ROLLING OF HEBEI IRON & STEEL GROUP
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