CONSTITUENT PART OF COOLING SYSTEM FOR MOTOR VEHICLE

摘要

A tank main body (125) constituting a radiator header tank (120) is formed from a polyamide composition comprising polyamide-6,10, glass fibers, copper, and a nucleating agent. This polyamide composition specifically comprises 48.9-79.988 wt.% polyamide-6,10 (a), 20-50 wt.% glass fibers (b), 0.002-0.1 wt.% copper (c), and 0.01-1.5 wt.% nucleating agent (d) based on the total amount of the polyamide-6,10, glass fibers, copper, and nucleating agent. The composition has a half-crystallization time of 5 minutes or less. The polyamide-6,10 is one having a relative viscosity as measured in 98% sulfuric acid of 2.3-2.9.