Manufacturing method of strong twinkling aluminium pastes

Abstract

The invention discloses a manufacturing method of strong twinkling aluminium pastes. The manufacturing method comprises the following steps: in a vertical stirring mill, adopting glass beads with the diameter being 1.0-5.0mm to serve as milling medium of a ball mill; mixing uniformly the ultrafine spherical aluminium powder with d50 being greater than 8mu m and less than 10mu m, organic solvent and dispersing agent according to the ratio of 20-50:80-200:1-5; ball milling for 20-50h under the rotating speed being 50-200rpm, discharging, filter pressing, introducing the filter liquor to the ball milling procedure for recycling; classifying through fine screening; filter pressing the screened material at each stage by the filter press; blowing dry and reusing; filter pressing and washing through; carrying out surface treatment on the filter cakes entering the mediating procedure; controlling the thickness of the aluminium particles to be 1-2mu m; and packaging to obtain the finished products.

Description

technical field

[0001] The invention relates to a method for preparing aluminum pigments in fine chemical industry, in particular to a method for manufacturing strong flashing aluminum-silver paste. Background technique

[0002] The existing manufacturing methods of aluminum pigments mainly include dry production and wet production; the existing wet production includes (1) mixing aluminum powder with organic solvents, lubricants, etc. in a certain proportion and then grinding in a ball mill; (2) After sieving, press filter to make a filter cake, (3) surface treatment by kneading to become aluminum silver paste; but the existing wet production is to use large steel balls with a size of 1.5 mm or more, and ball mill for 15-25 hours to break the coarse aluminum powder into flakes , after sieving and passing through 500 mesh materials, press filter directly, the filtrate returns to the ball milling process, the filter cake is kneaded and surface treated, and the package is an al...