JPS5959350A - Shot blast agent for aluminum alloy casting and die casting - Google Patents

Abstract

PURPOSE:To produce economically aluminum shots by crashing, grinding, sieving, cleaning and drying aluminum slug to separate metal aluminum particles therefrom. CONSTITUTION:In crashing process 1, aluminum slag is crashed and ground, and in the next sieving process 2 particles of the slag having 0.5mm.-0.8mm. diameters are segregated. In the cleaning process 3, oxide attached to the surface of metal aluminum particles is removed, and in the rinsing process 4 chemical fluid used in the previous process is removed. Further, the slag is made aluminum shots through the drying process 5 and used for shot blast agent for shot blast or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abrasive-aluminum shot produced from aluminum slag produced as a by-product when pure aluminum and aluminum alloys are melted in an aluminum melting furnace.

Conventionally, the aluminum shot for this weight was 1.2mm.
A cut wire is used, which is made by cutting old aluminum wire of the front and rear diameters into a length approximately equal to the diameter. This cut wire uses aluminum wire as a raw material, and has the disadvantage of being high in cost.

The conventional technique of crushing aluminum slag with a crusher such as a hammer mill, separating and collecting 1 metal aluminum grains, and subjecting them to melting, has been proposed to reduce the particle size of 1 aluminum by 1
1 and, as a guideline, 3 mm or less - there was a drawback that oxidation loss increased. The present invention opens up a new method that does not require the above-mentioned drawbacks of dissolution.

The method of the present application will be explained and explained below using a flow sheet shown in the drawings. ('') is the crushing step 1 of crushing the aluminum slag 1 (2) is the crushed aluminum slag 1! The sieving process to separate the part with a particle size of 0.5 mm to 8 mm in the 11-order order is a process, and (3) is a nitric acid aqueous solution with an appropriate concentration in order to remove the oxides stuck to the surface of the metal aluminum grains. (4) is a water washing process to remove the chemical solution - (5) is a drying process to remove moisture It is. In addition, in some cases, steps that are considered unnecessary among the above steps may be omitted.

The effect of the metal aluminum grains produced based on the above flow sheet as a shot for shot blasting is A.
When compared with conventional cut wires, there is no inferiority.

The present invention provides a shot for shot blasting that is cheaper than conventional cut wires.

Aluminum Grain Soto 3. Person making the amendment 4. Date of amendment order Showa Sg, April 2, 2nd 6. Details of the amendment A brief explanation of the drawings in the attached specification is provided in the following circular. Correct your words.

[Brief explanation of the drawing]

The drawing is a flow sheet of the present method.

Claims (1)

[Claims] Pure aluminum and aluminum alloy slag is crushed - polished ore 1 sieved 1 washed and dried 1 Metal aluminum contained in the slag is separated from other substances to produce slag particles with a diameter of 0.5 mm ~ 8mm metal aluminum grains. Note that among the above operations 1, operations that may be considered inappropriate in some cases will be omitted.