| 摘要 |
PURPOSE:To obtain the titled cylinder suitable for injection molding or extruding ceramic powders, magnetic powders and metal powders, the abrasion resistance and corrosion resistance of which cylinder would not be deteriorated at high temperatures, by mounting a ceramic liner onto an inner surface of a steel cylinder. CONSTITUTION:A liner 1 of a ceramic (e.g. alumina, carbon silicide, silicon nitride, zirconia, etc.) is integrally molded onto the inner circumferential surface of the cylinder main body 2 of carbon steel, chromemolybdenum steel, stainless steel, or the like with the shrink fit rate of the ceramic being 5/1000 to 10/ 1000 thereby obtaining the aimed cylinder. The thickness ratio of the liner 1 to the cylinder main body 2 is preferably 1:2 to 1:30 at the central barrel section of the cylinder. |
