Rod Flame Spraying
October 18, 2014

In the rod flame spraying process, ceramic rods are melted, atomized and sprayed at high velocity on the surface to be protected. Techceramic flame spray rods form an extremely hard, flexible and chemically inert coating that can be used as sprayed or finish-ground to a specified tolerance. This process requires no water, electrical power, or inert gases. Maintenance can be done in-house and does not normally require outside technical assistance.

Advantages of the ceramic rod coatings:

Improved wear resistance

Ceramic coatings are much harder and much more resistant to wear and abrasion than metals. Service life is much longer than those without coatings.

Improved heat resistance

Ceramic coatings improve metal components with the protective properties of ceramic at temperatures up to 2400℃. Ideal for rocket engine exhausts and jet engine components; also appropriate for hot extrusion dies or components in contact with hot metal.

Superior electrical insulation

Ideal for parts used in electrical components. Alumina thermal spraying rod is used in wire-wound furnace cores and copper induction heating coils for both heat and electrical insulation.

Superior corrosion resistance

Ceramics are chemically inert, even in the presence of many corrosive chemicals, yet provide structural strength those other inert substances such as plastic lack.

Reduced weight

In many applications, the total weight of the components in a process is a critical factor.

Material cost savings

Ceramic coatings can give superior properties to relatively inexpensive materials. For example, a stainless steel pump body can be replaced by less expensive cast iron and coated with ceramic rods. Value engineering can uncover many opportunities to reduce operating costs.

Reconditioning of worn parts

The expense of replacing worn parts can be greatly reduced or even eliminated by reconditioning with ceramic coatings. Parts can often be reconditioned on location, saving the costs of removing, transporting and reinstalling.

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