单词 | parkerizing |
释义 | Parkerizingn. A rustproofing process in which iron or steel is given a protective coating of phosphate by immersing it for a short time in a hot acidic solution of a metal phosphate (usually manganese dihydrogen phosphate).A proprietary name in the U.S. for the protective coating. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > [noun] > coating with metal > methods of barrel-plating1911 hot dipping1913 Parkerizing1919 Bonderizing1932 metalliding1967 1919 Chem. & Metall. Engin. 31 Dec. 787/2 Messrs. Allen and Richards were mainly responsible for changes in the Coslett process, which made its present modification one of the most simple methods of rust prevention. Their patented modification in use today is known as ‘Parkerizing’. 1932 Metal Industry 40 369/2 The basis of the Parkerizing process is a solution of a prepared powder, which consists essentially of manganese dihydrogen phosphate. 1954 E. Molloy Electro-plating & Corrosion Prevent. xiii. 213 ‘Parkerising’ is applied to cameras and instruments, rifles, typewriters, chains, bolts, nuts, tacks, and so on. 1984 E. P. DeGarmo et al. Materials & Processes in Manuf. (ed. 6) xxxvii. 919 Parkerizing produces a fairly corrosion-resistant coating from 0.004 to 0.008 mm. 1994 Fighting Firearms Autumn 78/2 Choice of gun finish is up to the owner... GI-type parkerizing (a phosphating process) is very rugged and provides good protection. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022). < n.1919 |
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