Accession Number : AD0631174

Title :   ORIGINAL FOUNDRY ALUMINUM 'AL 99.9H' AS NEWER GLAZING MATERIAL,

Corporate Author : INSTITUTE OF MODERN LANGUAGES INC WASHINGTON D C

Personal Author(s) : Ginsberg,H. ; Lattey,R. ; Neunzig,H.

Report Date : APR 1966

Pagination or Media Count : 12

Abstract : Methods are described whereby aluminum and its alloys are given a glaze by the Eloxal or Alumilite anodic protection treatments. The treatments impart smoothness and glaze and a hard, thick and transparent oxide layer. Glazing processes currently in use are: the Erft process, based on a nitric acid-ammonium hydrogen fluoride solution; the Allupol II (R5 bright dip) process, based on phosphoric and nitric acids; the Aluflex process, based on sulfuric and chromic acids; and the Brytal process, based on a trisodium and soda solution. Relationships were determined between glaze and glazing process in Eloxal-treated original-foundry quality alloy Erftal and the alloys with magnesium, the Raffinals.

Descriptors :   (*ALUMINUM, ANODIC COATINGS), (*ALUMINUM ALLOYS, COATINGS), MAGNESIUM ALLOYS, SILICON, IRON ALLOYS, WEST GERMANY

Subject Categories : Coatings, Colorants and Finishes
      Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE