A METHOD OF A HEAT TRANSFER OF A NON-METALLIC OR METALLIC ITEM

    公开(公告)号:EP3394202A1

    公开(公告)日:2018-10-31

    申请号:EP16822522.5

    申请日:2016-12-20

    申请人: ArcelorMittal

    IPC分类号: C09K5/10 B22D11/124 C21D1/00

    摘要: The present invention relates to a method of heat treatment of a non- metallic or metallic item comprising: A. at least one step A) of heat transfer between said item and a heat transfer fluid A' comprising a fluid medium and nanoparticles, the heat transfer fluid having a heat transfer coefficient above the heat transfer coefficient of water and B. at least one step B) of heat transfer between the item and a heat transfer fluid B' comprising a fluid medium and nanoparticles, the heat transfer fluid B' having a heat transfer coefficient different from the heat transfer coefficient of A' and above the heat transfer coefficient of water said heat transfer fluids A' and B' being different.