MANUFACTURING METHOD OF BARREL HAVING HORIZONTAL HOLE, AND THE BARREL

摘要

PROBLEM TO BE SOLVED: To provide a barrel manufacturing method in which a lining layer is simultaneously formed on an inner circumferential surface of a barrel and an inner circumferential surface of a horizontal hole, and the barrel having the horizontal hole with excellent productivity can be manufactured at a low cost. SOLUTION: An intermediate member 12 formed of steel and having a barrel hole 13 so as to form a cast iron barrel base material 10 with the horizontal hole 14 opened in its side surface is cast in an inside diameter part of the barrel base material 10, and the lining layer 16 formed of Ni-B-Si-Mo corrosion- resistant and wear-resistant alloy is simultaneously formed on the inner circumferential surface of the intermediate member 12 and the inner circumferential surface of the horizontal hole 14.