Cast
iron  https://www.wearresistantcasting.com/ parts have a surface that is often rugged and
porous, and only a rough and porous coating is obtained on such a
surface.

In addition, on the surface of the pig iron, free graphite is
present, which not only affects the bonding between the plating layer and the
base metal, but also, in the case of pores in the plating layer, it becomes the
cathode of the corroded battery, causing rapid destruction of the plating
metal.

The graphite in the pig iron sometimes has the effect of
reducing the hydrogen overvoltage, causing hydrogen to easily precipitate there,
hindering the deposition of the metal, so that the cast pig iron parts are more
difficult to plate than other steel parts.

Shenyang Gongda Heavy Equipment Manufacturing Co., Ltd., a
prominent and highly recognized manufacturer and supplier of high quality metal
castings, founded in 2003, specializes in the production, machining and R&D
of wear resistant castings, alloy steel castings and Cu & Al alloy
castings.

Shenyang Gongda has experience and longevity in this industry.
It is willing to serve both domestic and overseas enterprises and is ready to
respond to enquiries.

Website: https://www.wearresistantcasting.com/