Production of a cast part used as a fuel feeding device for an I.C. engine comprises casting using a core, wetting the surface of the conveying channel with a binder and allowing the binder to solidify

摘要

Production of a cast part having a conveying channel comprises producing a cast part (12) by casting using a core which is removed or dissolves after the part is formed, wetting the surface of the conveying channel (22) with a binder and allowing the binder to solidify. Preferred Features: The binder is a liquid impregnating material, preferably water glass. The core is a sand core having a core binder. The core binder vaporizes or gasifies during casting and the sand core crumbles away.