| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite structural part between a metallic material and a non-metallic material in which the non-metallic material of large layer thickness is covered on the metallic material in a consistently adhered condition and in a less-sensitive manner to the impact effect, the heat conductivity is less than that of a prior art, and a small metal area exposed to oxidation is obtained. SOLUTION: A holding structural part integrally cast with a surface 10 of a base body 2 comprises rivets 4. In addition, the rivets 4 are integrally cast with the base body 2 by a known wax pattern molding method. |
