6.
    发明专利
    未知

    公开(公告)号:DE3771862D1

    公开(公告)日:1991-09-05

    申请号:DE3771862

    申请日:1987-11-04

    Applicant: DEGUSSA

    Abstract: Metal substrates are given hard coatings by applying flexible mouldings contg. plastics (I), the hard material (II) and solder powder (III) and heating in vacuo or protective gas to the working temp. of the solder used. The novelty is that (I) is EVA, ethylene-propylene copolymers and/or butyl rubber and the moulding contains 5-40 vol.% (I) and 5-40 vol.% pores, rest (II) and (III). Pref., the moulding contains 40-70 vol.% (II) or (III), 10-25 vol.% (I) and 15-35 vol.% pores. The substrate is covered first with a (II) moulding and then a (III) moulding.

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