| 摘要 |
A cylinder block main body (1) comprises a plurality of vertically extending cylinders (2) open at the lower end. A sliding surface (3) is formed on the upper side above the cylinders (29, a core (6) is inserted into each cylinder (2) to form a cavity (14), and the lower end of the cylinder (2) is sealed. A solid covering material (9) is placed on the sliding surface (3), a carbon lid (10) is closed and the assembly is heated at about 920 to 1050 DEG C. A cylinder block is thus formed by covered casting in a simple process, and a low-cost cylinder block is obtained. <IMAGE> |
