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Method for preparing high-whiteness aluminum paste

A manufacturing method and technology of aluminum-silver paste, applied in the direction of pigment paste, dyeing physical treatment, fibrous filler, etc., can solve the problems of wide particle size distribution, irregular particle shape, poor surface smoothness, etc., and achieve high covering rate Effect

Pending Publication Date: 2010-12-15
长沙奥特金属颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing wet production adopts a one-stage ball milling method, that is, only large steel balls of 6.0mm-16.0mm are used to break the coarse aluminum powder into scales once; the product particles have irregular shapes, poor surface smoothness, and wide particle size distribution. , resulting in poor whiteness

Method used

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  • Method for preparing high-whiteness aluminum paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Put 2000kg of 10.0-16.0mm steel balls into the Φ1100×1200 horizontal ball mill, add 300kg of 200# solvent oil, D 50 80kg of nitrogen atomized fine spherical aluminum powder with a diameter of 26-31μm, 3kg of oleic acid, ball milling for 5h, discharge, and press filtration. The filtrate is returned to the ball milling process;

[0016] (2) Add the filter cake to a Φ1100×1200 horizontal ball mill equipped with 2.0-3.0mm steel balls of 2000kg, add 300kg of 200# solvent oil, 2kg of oleic acid, ball mill for 5h, discharge, sieve, and press through 500 mesh materials filter. The filtrate is returned to the ball milling process;

[0017] (3) After kneading and surface treatment, the cake is packaged as a high-whiteness aluminum-silver paste product.

Embodiment 2

[0019] (1) Put 2000kg of 10.0-16.0mm steel balls into the Φ1100×1200 horizontal ball mill, add 300kg of 200# solvent oil, D 50 80kg of nitrogen atomized fine spherical aluminum powder with a diameter of 26-31μm, 3kg of oleic acid, ball milling for 3h, discharge, and press filtration. The filtrate is returned to the ball milling process;

[0020] (2) Add the filter cake to a Φ1100×1200 horizontal ball mill equipped with 2.0-3.0mm steel balls of 2000kg, add 300kg of 200# solvent oil, 2kg of oleic acid, ball mill for 5h, discharge, sieve, and press through 500 mesh materials filter. The filtrate is returned to the ball milling process;

[0021] (3) After kneading and surface treatment, the cake is packaged as a high-whiteness aluminum-silver paste product.

Embodiment 3

[0023] (1) Put 2000kg of 10.0-16.0mm steel balls into the Φ1100×1200 horizontal ball mill, add 300kg of 200# solvent oil, D 50 80kg of nitrogen atomized fine spherical aluminum powder with a diameter of 26-31μm, 3kg of oleic acid, ball milling for 5h, discharge, and press filtration. The filtrate is returned to the ball milling process;

[0024] (2) Add the filter cake to a Φ1100×1200 horizontal ball mill equipped with 2.0-3.0mm steel balls of 2000kg, add 300kg of 200# solvent oil, 2kg of oleic acid, ball mill for 3h, discharge, sieve, and press through 500 mesh materials filter. The filtrate is returned to the ball milling process;

[0025] (3) After kneading and surface treatment, the cake is packaged as a high-whiteness aluminum-silver paste product.

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Abstract

The invention discloses a method for preparing high-whiteness aluminum paste. A two-stage ball-milling method is adopted and comprises the first stage of expansion and breakage of a big steel ball with the diameter of 10.0mm to 16.0mm and the second stage of ball-milling polishing procedure of a small steel ball with diameter of 1.0mm-3.0mm. By adopting the two-stage ball-milling method, aluminum powder particles are expanded and broken by using the big steel ball at the first stage; the aluminum particles broken at the first stage are further grinded and polished by using the small steel ball at the second stage; and the surfaces of flaky aluminum pigment particles are smooth, and the high whiteness and high coverage rate of an aluminum paste product are ensured.

Description

technical field [0001] The invention relates to the technical field of fine inorganic chemical industry for the preparation of aluminum pigments, in particular to a method for manufacturing high-whiteness aluminum-silver paste. Background technique [0002] Aluminum pigments are produced with pure aluminum metal, which has many characteristics of aluminum metal itself; aluminum pigment particles are actually flakes with pigment properties coated with fatty acid film on the surface, and this form makes it unique. Because of its superior corrosion resistance and decorative properties, it is widely used. [0003] There are two main methods for the manufacture of aluminum pigments: the first method is "dry production". The ball mill and the pipeline are filled with inert gas, and steel balls, aluminum powder and lubricant are put into the ball mill, and crushed by steel balls. After the aluminum powder becomes flake aluminum powder; the second method is "wet production", which ...

Claims

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Application Information

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IPC IPC(8): C09C1/64C09C3/04C09D17/00
Inventor 夏风曾孟金梁晓斌
Owner 长沙奥特金属颜料有限公司