ORIGINAL FOUNDRY ALUMINUM 'AL 99.9H' AS NEWER GLAZING MATERIAL,
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1966
- Accession Number
- AD0631174
Entities
People
- H. Ginsberg
- H. Neunzig
- R. Lattey