Propwash April 2019 web.pub

Another reason that the outside brass sleeve and the top ring are necessary is that they prevent the chrome from building up at the top and bottom edges of the cylinder's bore. Any chrome plated on the bottom and ID of the outside brass sleeve as well as the ID of the top ring can be removed with a 50% solution of hydrochloric acid. The two silicon coated wire leads (cathode) passing through the tanks cover are connected to the cylinder sitting inside the brass holding fixture. Also notice the 1/4" lead antimony (anode) which supports the entire unit and is held in place with a split collar. Quality rubber gloves and a respirator type mask are used at all times when using the chrome tank. There will be some chrome that plates on the holding fixtures inside wall through transfer and exhaust windows as well as at the top and bottom of the holding fixture. The build up at the top and bottom of the fixture prevents any unwanted buildup at the top or bottom of the cylinder. Any plating on brass pieces is removed by placing those pieces in a 50% solution of warm hydrochloric acid. cylinder being chromed. In this case, the anode must be longer to facilitate its mounting in the PVC sleeve. The addition of the outside brass sleeve, which extends below the bottom of the cylinder and the brass top piece, which extends above the top of the cylinder, prevents the common dog bone effect (build up of chrome). That build up could take place at the top and bottom edges of the cylinder without the brass pieces in place if the anode is longer than length of the cylinder being chromed. The PVC outer shell electrically insulates the anode from the cathode (cylinder) and positions it dead on center. The large lip on the top of the brass sleeve (cathode) sits directly on the two cathode wires. It is clamped into position with the top brass ring and the square PVC nut using a large amount of force. The outside brass sleeve, which the cylinder sits in, makes positive contact between the two stripped cathode wires and the cylinder. The large clamping nut and the top brass ring clamp all the pieces together securely. The outside brass sleeve is also relieved in its ID in the areas of the cylinder's windows. This is necessary because there will be a small build up of chrome in these areas of the outside sleeve making removal of the cylinder impossible. All pieces are machined as a slip fit. PROPWASH 26 April 2019 Anode with mold PVC Fixture and Liner in Outer Sleeve Fixture with Outer Sleeve and Top Ring Chrome Tank Fixture Support and Wiring