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    • 3. 发明申请
    • GASKET MANUFACTURE
    • 垫圈制造
    • WO1994003742A1
    • 1994-02-17
    • PCT/GB1993001480
    • 1993-07-14
    • T&N TECHNOLOGY LIMITEDATKINSON, Alan, WilliamWALSH, Melanie, Jane
    • T&N TECHNOLOGY LIMITED
    • F16J15/12
    • F16J15/122Y10T29/49982Y10T156/1039
    • An embossed sheet (S) coated at least partially with expanded graphite and suitable for use as a gasket (G) or as a component layer of a gasket, is manufactured by positioning a planar metallic sheet (10) between an upper embossing die (14) and a lower embossing die (18) with a layer of particles of expanded graphite (22) between one of said dies and a surface of the sheet (10). One of the dies (14) has a protuberance (16) to emboss a ridge (R) into the sheet (10) while the other die (18) has a recess (20) to receive the ridge (R). The method also comprises pressing the dies (14, 18) together to cause the particles to coalesce and form a coating (24) attached to the sheet (10) while simultaneously embossing said ridge (R) into the sheet (10).
    • 通过将平面金属片(10)定位在上压花模(14)之间,制造至少部分地具有膨胀石墨并适合用作垫圈(G)或垫圈的部件层的压花片材(S) )和具有在所述模具之一和所述片材(10)的表面之间的膨胀石墨(22)颗粒层的下部压花模具(18)。 模具(14)中的一个具有凸起(16),以将脊(R)压印成片材(10),而另一个模具(18)具有用于接收脊(R)的凹部(20)。 该方法还包括将模具(14,18)压在一起以使颗粒聚结并形成附接到片材(10)的涂层(24),同时将所述脊(R)压印成片材(10)。