PURPOSE: To improve the effective life of a receiver having a flat hole for an extrusion molding machine by constituting this receiver of an inner bushing and outer component members shrinkage coupled thereto.

CONSTITUTION: The receiver 1 comprises the inner bushing 3 which is flat in a transverse axis AB direction and has the hole existing in a longitudinal range delineated by curvilinear chamfered parts and at least one outer component members 4, 5 which are arranged nearly concentrically therewith and are coupled to the inner bushing 3 by a shrinkage fit. As a result, the adjustment of the highly compressive stress near the surface of the inner bushing 3 is made possible and further, the easy adjustment of the magnitude and distribution of the internal compressive stresses of the inside wall thereof is made possible by the degree and shape of the non-circularity of section of the surface and the improvement in the effective life of the receiver 1 is made possible.