| 摘要 |
As dictated by the method of connection between the sealing plate (3) and its carrier plate (2), the mechanical pressure set up between them, lies within a predetermined range. The sealing plate is arranged on the carrier plate using a single-point fixing (4). The plates are detachably fastened together by a pair of screws (5), to exert predetermined pressure against each other. On the side of the carrier plate facing away from the sheet, a resilient component, e.g. an elastomer or compression spring, is included under the screw head. The cylindrical section of the screw shaft has clearance in the support plate bore. Its threaded end screws into a tapped bore in the sealing plate. The cylindrical section is larger in diameter than the threaded section and its length exceeds the thickness of the carrier plate. The single-point-fixing is a central rod or bolt fixed in either plate, interlocking in a recess of the plate opposite. One or more non-central rods or bolts (11) on either plate, engage slots (12) in the opposite plate. The sealing plate is made of a highly wear-resistant material, especially steel. The carrier plate is made from material of high thermal conductivity, especially aluminum, or an alloy of it. The carrier plate includes recesses (13) parallel to the surface. The sealing plate is grooved or contoured, on the surface facing the sheet. |
