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Alloying high peel strength high heat sealing strength SP package light gauge foil

A double-zero aluminum foil, high peeling technology, applied in heat treatment furnaces, heat treatment equipment, furnace types, etc., to achieve the effects of improving economic benefits, reducing reinvestment, and optimizing the range of component control

Active Publication Date: 2019-03-01
JIANGSU ZHONGJI LAMINATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional aluminum foil production process cannot meet the high requirements for pinholes, surface cleanliness, mechanical properties, and after the finished product is compounded, especially the compounded peel strength and heat seal strength

Method used

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  • Alloying high peel strength high heat sealing strength SP package light gauge foil
  • Alloying high peel strength high heat sealing strength SP package light gauge foil
  • Alloying high peel strength high heat sealing strength SP package light gauge foil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] S1: Melting and casting process

[0122] The ingredients of the double-zero aluminum foil are calculated by weight percentage: Si: 0.32%, Fe: 1.3%, Cu: 0.18%, Mn: 0.2%, Ni: 0.0026%, Zn: 0.0002%, Ti: 0.027%, Zr: 0.00018 %, the balance is Al;

[0123] During the smelting process, the batching plan of 48% electrolytic aluminum liquid plus 23% solid material is adopted. When the temperature of the furnace charge reaches 765°C, the electromagnetic stirring system is started to stir for 32 minutes, and the refining system in the holding furnace is started for 35 minutes. Refining in the furnace, and then controlling the melt temperature in the furnace at 712°C to prepare for casting. During the refining process, 92% high-purity nitrogen and 5.4% chlorine are introduced through the furnace bottom vent plug, and then 98.8% high-purity argon is introduced. Mixed with 0.35% chlorine gas for refining and double-stage filtration; then add aluminum titanium boron wire with a ratio of...

Embodiment 2

[0139] S1: Melting and casting process

[0140] The ingredients of the double-zero aluminum foil are calculated by weight percentage: Si: 0.35%, Fe: 1.6%, Cu: 0.21%, Mn: 0.38%, Ni: 0.0039%, Zn: 0.0005%, Ti: 0.043%, Zr: < 0.00025%, the balance is Al;

[0141] During the smelting process, the batching plan of 52% electrolytic aluminum liquid plus 31% solid material is adopted. When the temperature of the furnace charge reaches 772°C or above, the electromagnetic stirring system is started to stir for 40 minutes; the refining system in the holding furnace is started for 50 minutes. Refining in the furnace, and then controlling the temperature of the melt in the furnace at 716°C to prepare for casting. During the refining process, 93% high-purity nitrogen and 7% chlorine are introduced through the furnace bottom vent plug, and then 99.1% high-purity argon is introduced. Gas and 0.4% chlorine gas are mixed for refining and double-stage filtration; after that, aluminum titanium bor...

Embodiment 3

[0158] S1: Melting and casting process

[0159] Si: 0.38%, Fe: 1.95%, Cu: 0.27%, Mn: 0.46%, Ni: 0.0045%, Zn: 0.0008%, Ti: 0.0485%, Zr: 0.00029%, and the balance is Al;

[0160] During the smelting process, the batching plan of 62% electrolytic aluminum liquid plus 38% solid material is adopted. When the temperature of the furnace material reaches 780, the electromagnetic stirring system is started to stir for 46 minutes; the refining system in the holding furnace is started for 55 minutes of furnace refining , and then control the melt temperature in the furnace at 718 ° C to prepare for casting. During the refining process, 94% high-purity nitrogen and 8% chlorine are introduced through the furnace bottom vent plug, and then 99.1% high-purity argon and 0.45 % chlorine mixed refining and double-stage filtration; then add aluminum titanium boron wire with a ratio of 1.6Kg / t.AL at the inlet of the refining system, after filtration, then flow through the distribution launder int...

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Abstract

The invention relates to an alloying high peel strength high heat sealing strength SP package light gauge foil. The foil is formed by optimizing the composition control range and adopting the aluminumfoil annealing banding prevention technology. The production method is simple and easy to perform, and has excellent effects. The problems of long annealing cycle, low annealing efficiency, high energy consumption and high production cost in the original annealing process are solved in the production implementation process. According to the production method, the annealing cycle is shortened by 20%-30% compared with the original slow heating and cooling method in a furnace, the annealing cost is reduced by nearly 25%, the re-investment of the annealing furnace is reduced, the banding of a product is reduced by 80% compared with the original situation, the weight of the depreciated aluminum foil is also reduced by 80% accordingly, the overall quality of the aluminum foil is greatly improved, a high-grade aluminum foil market is further expanded, and the economic benefit is significantly improved.

Description

technical field [0001] The invention relates to an alloyed double-zero aluminum foil with high peeling strength and high heat-sealing strength for SP drug packs, belonging to the technical field of aluminum foil production. Background technique [0002] Aluminum foil is a thin strip of aluminum that is directly rolled into a thin sheet of metal aluminum, and its thickness is less than or equal to 0.2mm. The regulations on the thickness of aluminum foil are not consistent in various countries. The upper limit of China, France and Russia is 0.2mm; the upper limit of the United States, the United Kingdom and Japan is 0.15mm; the upper limit of Germany is 0.02mm. In China, aluminum foil with a thickness of less than 0.01mm, that is, two zeros after the decimal point (such as 0.0055-0.009mm), is called double-zero aluminum foil, and it is called thin foil internationally; and foil with a thickness of 0.01mm-0.1mm It is called single-zero aluminum foil, which is called thick foil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22F1/04C21D9/46B23P15/00
CPCC21D9/46C22C21/00C22F1/04B23P15/00Y02E60/10
Inventor 崔广健
Owner JIANGSU ZHONGJI LAMINATION MATERIALS