| 摘要 |
Substrate such as relatively porous, low thermally conductive materials are coated with molten lead, lead-base alloys, zinc, zinc-base alloys, tin, tin-base alloys, cadmium, cadmium-base alloys, aluminum, aluminum-base alloys and the like by spreading the molten metal by means of a low thermally conductive roll to provide products useful in sound attenuation, moisture and corrosion proofing and radiation shielding.
|
