Copper busbar to titanium conductor connector in electrolytic cells - has copper bolt threaded into titanium conductor with notched head resting on knife edge

摘要

In order to reduce the contact resistance between the copper, bus bars, supplying the cells and the titanium conductors carrying the plates a connection is made between them by means of a threaded copper bolt. It is 1.9 cm in dia. screwed into a hole in the titanium bar to a depth of about an inch. A thread pitch not exceeding National Coarse is desirable for the bolt with a corresponding thread inside the hole. The bolt is inserted with a conducting grease. The head of the bolt has a 60 degree vee notch in its head which rests on a knife edge formed on the copper bus bar. The contact will carry a cell current of 300 amps with a much lower contact temp. than if the titanium bar rests directly on the copper bus bar because of the increase contact area.