"live", with both anode and cathode connected, and current on at about 6 volts. The problem was resolved by grit blasting as you mentioned, then going into the chrome tank We had similar problems plating chrome onto graphite cast iron, specifically meehanite gray cast iron. We are facing a problem while Hard Chrome Plating on Cast Irons containing Graphite, the chrome simply does not adhere, even afterģ.25 Amp/square inch.We are considering Grit Blasting or undercoat plating? Neil Paarekh Do a good job of 5S work in the workplace.- "Hard Chrome Plating on Cast Irons containing Graphite" When extraction or installation of anode plate, production is strictly prohibited and safety is ensured.Ĥ. When extracting or installing graphite anode plate, it must go in and out vertically and not to collide with the anode plate.ģ. The whole operation process should be handled gently to prevent fracture of the graphite anode plate.Ģ. Emptying cleaning tank, rinse with tap water, put in pure water, soak the clean graphite anode plate in pure water, hang it on the anode rod and cover the anode rod cover.ġ. If necessary, it should be scrubbed until it is clean.ĥ. After cleaning, rinse thoroughly with tap water and check whether there is any stain on the surface.
Use sandpaper to clean the contact plate of the anode plate, and clean it with tap water.Ĥ. 240# ~ 320# water sand paper scrubbing the surface of the stone sun plate, in the scrubbing, one hand to support the stable sun plate, a hand gently pressed water sand paper back and forth scrubbing, washing edge with tap water rinse, until the dirt removal.ģ. The graphite anode plate, which has been soaked in 30min, is taken out of the soaking solution and put on the wooden frame.Ģ. Uncover the anode pole cover plate and gently put the graphite anode plate from the anode pole to the graphite flask and soak 30min.ġ. 109 sodium hydroxide solutions are prepared in the cleaning tank which is intended for cleaning graphite anode plates.ģ.
Wearing aprons, rain shoes, gloves, safety helmets and gloves must be cleaned after water, acid and water.Ģ.
240# ~ 320 sandpaper, wire brush, apron, rain shoes, safety helmetġ.
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