It is important that the current keep flowing, but it does not need to achieve a certain rate or level. Therefore, even though graphite is a resistive material, it is highly ideal in these situations. Read More…
Leading Manufacturers
Weaver Industries, Inc.
Denver, PA | 717-336-7507We take pride in our values and diversity. We employ a variety of friendly, knowledgeable, and experienced staff. Our sales team can provide technical support for our carbon graphite and other products. We are happy to answer your questions about any of our products. Contact us by phone or visit our website to learn more about what we can do for you!
Industrial Graphite Sales, LLC
Harvard, IL | 800-891-6469We understand the challenges that are associated with graphite machining and we strive to work closely with your team to ensure quality satisfaction. From milling, grinding, CAD or sanding, we can provide it all.
Ameri-Source Specialty Products
Bethel Park, PA | 412-831-9400Ameri-Source is your source for machined graphite products. Our team of dedicated & qualified engineers & sales professionals will do their best to ensure you receive quality.
Becker Brothers Graphite Corporation
Maywood, IL | 708-410-0700A manufacturer of graphite products, Becker Brothers Graphite Corporation, offers complete graphite machining facilities as well as a wide selection of parts. At our company there is no compromise for quality performance.
Helwig Carbon Products, Inc.
Milwaukee, WI | 800-962-4851Helwig Carbon Products has over 75 years of precision machining experience with carbon, carbon graphite and graphite products used for a variety of mechanical applications, including bearings, seals, vanes, steam joints, trolley wheels, crucibles and parts for pumps.
Graphite Cylinders - Weaver Industries, Inc.The anodes are usually constructed from a combination of petroleum coke and coal tar pitch and are relatively easy to machine as finish or appearance is also not a determining factor in effectiveness. Used conjunctively with carbon graphite or other anode backfill, graphite anodes provide a long lasting solution and are one of the most commonly recycled graphite products as they contain few additives.
Custom specifications are often used to produce graphite anodes as they are typically application specific. Common approximate sizes are between 60 and 150mm in diameter and from 1200 to 1500mm long. The extruded graphite rods are baked in an oven and sintered to improve the density of graphite. They are typically extruded around a thin brass pin which is then connected to a cable in order to form the electrochemical cell necessary for the process of cathodic protection.
Over time however, despite its durability and corrosion resistance, graphite will begin to break down, especially when used in the purpose of cathodic protection. However, some graphite anodes are treated with a non-porous quality non-conducting material such as oils, microcrystalline waxes or resins. The treatment of graphite anodes will ensure a higher level of performance, especially in wetter environments when exposure to moisture is prolonged or constant.
The wax, resin or oil seals the porosity of the anode and protects it against water absorption as well as improving the stability and wear rate by reducing the electrochemical reactions within the anode. Applications such as dock-side uses and water tanks, as well as deep underground installations are recommended to pre-treat the anodes to ensure optimal performance.