| 摘要 |
<p>1491763 Transfer moulding insulation unit UNIROYAL AG 27 March 1975 [29 April 1974 (2)] 12861/75 Heading B5A An apertured insulation unit 18 is disposed between a transfer unit 10 and a mould cavity 50 and comprises a first plate 22 of flexible thermalinsulating material, e.g. asbestos fibres and thermosetting resin and an upper reinforcing plate 26, e.g. iron, steel, copper and/or steel alloyed with beryllium. Each aperture 20 has a divergent portion 28 and preferably also includes a cylindrical portion 32 and an upper divergent portion 34. A second plate 24, e.g. asbestos/resin mixture may be bonded to the plate 22. The aperture itself may have a p.t.f.e. lining (Fig. 2, not shown).</p> |
