GB941756A - Uniform sizing of magnesium shapes - Google Patents

Uniform sizing of magnesium shapes

Info

Publication number
GB941756A
GB941756A GB549862A GB549862A GB941756A GB 941756 A GB941756 A GB 941756A GB 549862 A GB549862 A GB 549862A GB 549862 A GB549862 A GB 549862A GB 941756 A GB941756 A GB 941756A
Authority
GB
United Kingdom
Prior art keywords
magnesium
solution
weight
shapes
alkali
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB549862A
Inventor
Herbert Kenneth Delong
Donald Earl Ritzema
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB549862A priority Critical patent/GB941756A/en
Publication of GB941756A publication Critical patent/GB941756A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/22—Acidic compositions for etching magnesium or alloys thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A magnesium or magnesium based alloy is uniformly reduced in size by immersion in an aqueous solution comprising nitric acid and at least 3% by weight of ammonium or an alkali or alkaline earth metal nitrate, a relative motion being maintained between the metal and the solution. The solution preferably contains 0.7%-25% by weight of nitric acid and 10%-30% by weight of the nitrate, the solution temperature during treatment is up to 43 DEG C. Part of the magnesium article to be treated may be masked by coating with a resin such as polyvinyl chloride. In an example an alloy containing 96% Mg, 3% Al and 1% Zn was degreased in alkali, water rinsed and then treated in the solution.
GB549862A 1962-02-13 1962-02-13 Uniform sizing of magnesium shapes Expired GB941756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB549862A GB941756A (en) 1962-02-13 1962-02-13 Uniform sizing of magnesium shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB549862A GB941756A (en) 1962-02-13 1962-02-13 Uniform sizing of magnesium shapes

Publications (1)

Publication Number Publication Date
GB941756A true GB941756A (en) 1963-11-13

Family

ID=9797339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB549862A Expired GB941756A (en) 1962-02-13 1962-02-13 Uniform sizing of magnesium shapes

Country Status (1)

Country Link
GB (1) GB941756A (en)

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