Intensive Quenching of Steel Parts and Tools in Water Salt Solutions of Optimal Concentration

    Volume 9, Issue 2 (February 2012)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 21 October 2011

    Page Count: 18


    Kobasko, N. I.
    IQ Technologies Inc.,

    Moskalenko, A. A.
    Institute of Thermal Science and Engineering of NASU,

    Dobryvechir, V. V.
    Intensive Technologies Ltd.,

    Protsenko, L. M.
    Institute of Thermal Science and Engineering of NASU,

    (Received 30 May 2011; accepted 26 September 2011)

    Abstract

    In this paper, a method of intensive quenching in water salt solutions, known as the IQ-2 process, is considered. To realize the IQ-2 process, water salt solutions were used, including with NaNO3, Na2CO3, NaCl, CaCl2, MgCl2, Ca(OH)2, and others salts. It is shown that the effectiveness of intensive quenching can be improved via the use of water salt solutions of optimal concentration. In order to prevent the corrosion of steel parts, a small amount of Ca(OH)2 was added to water salt solutions of sodium and calcium chloride to create a pH of 8 to 12. The proposed technology is less expensive compared to conventional quenching methods while providing the same or better end results in terms of increasing the service life of steel parts and tools and components made of powder metal materials. It is shown that the intensive quenching of tools by water salt solutions of optimal concentration increases the service life of tools by 1.5 to 2 times as compared with the oil quenching process.


    Paper ID: JAI104072

    DOI: 10.1520/JAI104072

    ASTM International is a member of CrossRef.

    Author
    Title Intensive Quenching of Steel Parts and Tools in Water Salt Solutions of Optimal Concentration
    Symposium , 0000-00-00
    Committee A01