| 释义 |
Parkerizing, vbl. n.|ˈpɑːkəraɪzɪŋ|
[f. the name of the Parker Rust-Proof Co. of America (incorporated 1915), which introduced the process.]
A rust-proofing 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 (usu. manganese dihydrogen phosphate).
A proprietary name in the U.S.A.
1919Chem. & 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’. 1932Metal Industry XL. 369/2 The basis of the Parkerizing process is a solution of a prepared powder, which consists essentially of manganese dihydrogen phosphate. 1949Official Gaz. (U.S. Patent Office) 24 May 984/1 Parker Rust Proof Company, Detroit, Mich...Certification mark. ‘Protected by Parkerizing for rust resistance.’.. Claims use since Mar. 15, 1936. 1954E. Molloy Electro-Plating & Corrosion Prevention xiii. 213 ‘Parkerising’ is applied to cameras and instruments, rifles, typewriters, chains, bolts, nuts, tacks, and so on. 1976J. A. von Fraunhofer Basic Metal Finishing xiii. 147 The original Coslett process, based on phosphoric acid containing zinc phosphate, has been superseded by the accelerated Parkerising, Bonderising and similar processes.
So ˈParkerize v. trans., to treat in this way; ˈParkerized ppl. a., a proprietary name applied to articles so treated.
1922Raw Material V. 438/2 Heavy castings of intricate shape, containing irregular cavities, can be completely Parkerized. Ibid. 439/1 On structural iron work, heavy Parkerized coatings can be produced. 1932Metal Industry XL. 369/2 The Parkerized surface is..excellent for absorbing and retaining paint, lacquer or enamel. 1939Burns & Schuh Protective Coatings for Metals xvi. 375 It is possible to Parkerize zinc coatings. 1942Trade Marks Jrnl. 20 May 205/2 Parkerized... Hand tools and side arms. The Pyrene Company Limited,..Brentford, Middlesex; manufacturers. Ibid. 2 Dec. 505/2 Parkerized... Small domestic utensils and containers, non-electric instruments for cleaning purposes..all being goods of common metal; steel wool. The Pyrene Company Limited,..Brentford, Middlesex; manufacturers and merchants. 1961Chem. Abstr. LV. 8883 (heading) The resistance of parkerised iron in polar marine climatic conditions. |