Method for cast-rolling blank for producing deep-drawing daily aluminum product

An aluminum product, cast-rolling technology, applied in the field of deep-drawing daily-use aluminum product blanks, can solve the problems of poor deep-drawing performance, high production cost, complex production process, etc., achieve uniform product thickness, increase production efficiency, and produce The effect of simple process

Inactive Publication Date: 2009-12-30
甘肃甘棠金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the complex production process, low yield rate and high production cost of producing deep-drawing daily-use aluminum products with hot-rolled aluminum billets in the prior

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present invention takes 1050 deep-drawing aluminum as an example, and adopts the following process to produce (the following is the same as embodiment one):

[0024] 1), smelting casting and rolling

[0025] (1), conventionally produced cast-rolled 1050 deep-drawn aluminum material is furnace-melted according to a conventional method;

[0026] (2) When all the aluminum materials are melted into molten aluminum, mix HSGJ-6 sodium-free refining agent and HT-LWQ sodium-free slag powder 0.5 hours before turning down the furnace, and mix them with nitrogen Spray into molten aluminum with a spray pressure of 20MPa;

[0027] The added nitrogen is high-purity nitrogen with a purity of 99.999%;

[0028] During the process of melting the aluminum material, stir 4 times successively. The amount of sodium-free refining agent added is 0.12% of the weight of the aluminum melt, the amount of sodium-free slagging agent added is 0.08% of the weight of the aluminum material; the a...

Embodiment 2

[0036] The present invention adopts following process method to produce:

[0037] 1), smelting casting and rolling

[0038] (1), conventionally produced cast-rolled 1050 deep-drawn aluminum material is furnace-melted according to a conventional method;

[0039] (2) When all the aluminum materials are melted into molten aluminum, mix the HSGJ-6 sodium-free refining agent and HT-LWQ sodium-free slag agent powder 0.5 hours before turning down the furnace, and use 20MPa together with nitrogen The injection pressure is sprayed into the molten aluminum; the added nitrogen is high-purity nitrogen with a purity of 99.999%;

[0040] Stir 5 times successively during the process of melting the aluminum material. The amount of sodium-free refining agent added is 0.1% of the weight of aluminum melt, the amount of sodium-free slagging agent added is 0.1% of the weight of the aluminum material, and the amount of nitrogen added is 0.85% of the weight of the aluminum material; The sodium-fr...

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Abstract

The invention discloses a method for cast-rolling blank for producing deep-drawing daily aluminum products, overcoming the defects of complicated production process, low rate of finished products and high production cost in the prior art when hot-rolled aluminum blank is used for producing deep-drawing daily aluminum products. Because of an unreasonable production process method, the prior cast-rolling aluminum blank has poor deep-drawing performance and can not meet production requirements. Through processes of special melting cast-rolling, cold rolling of blank and annealing treatment sequentially, the invention enables the tensile strength of cast-rolling aluminum blank to reach the range of 70-80 MPa and the elongation rate to reach the range of 25-30 percent, the earing rate of the cast-rolling aluminum blank can fully meet production requirements of deep-drawing products, and the deep-drawing height of the deep-drawing products can reach 400mm. When the cast-rolling aluminum blank is used for producing deep-drawing daily aluminum products, the rate of finished products can reach 95-98 percent, and the surface is bright and beautiful. Compared with the prior production of hot-rolled aluminum blank, the production process is simple, the production efficiency can be improved by 3-5 times, the production cost can be saved by 1000-1500 Yuan every ton, and the cost can be saved by 7-10 million Yuan every year according to the production scale of 7000 tons every year, therefore, economic benefits are quite considerable.

Description

technical field [0001] The invention belongs to the manufacture of aluminum product blanks, in particular to a method for producing deep-drawing daily-use aluminum product blanks. Background technique [0002] The blanks used in the production of daily-use aluminum deep-drawn products are generally hot-rolled aluminum blanks. Since the thickness of hot-rolled ingots is generally 20-30mm, when making aluminum products such as aluminum pots and aluminum pots for deep-drawing daily-use aluminum products, it is necessary to carry out more than ten passes of rolling on the ingots. The microstructure and properties of the aluminum plate after multi-pass rolling are good, and its tensile strength, elongation and ear-making rate can all meet the requirements for the production of deep-drawn products, but its disadvantage is that, on the one hand, the processing technology for producing the above-mentioned aluminum plate is complicated , the production cost is very high; on the othe...

Claims

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Application Information

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IPC IPC(8): C22F1/04B22D11/06B22D11/116C21D1/26
Inventor 李文香韩平德
Owner 甘肃甘棠金属科技有限公司
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