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Toyo instantaneously focused on the appearance and the superiority of the chrome plating for industrial use and have innovated the hard chrome plating in the operations since the institution's formation. Our company's hard chrome plating can completely process large, long and heavy objects without selecting the material such as steel product, molybdenum steel, cast iron and aluminum based on the technology and actual achievement accumulated over a period of time.
Our company also responds to the chrome plating in highly-efficient bath with hard plated membrane, which is superior in the fluoride bath with a wide gloss range and high current efficiency, high speed and superior in corrosion prevention property in addition to the chrome plating in general sergeant bath. |
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■Main characteristics of (hard) chrome plating for industrial use
- Hardness: In case of general chrome plating, the value 800 to 1000Hv can be obtained under ordinary conditions. The hardness is the highest in the electrodeposition extremely exceeding that of thermally-processed copper and copper nitride etc., so it is the plating best suitable for the part that requires the hardness. The ultra hardness of 1700Hv can be obtained by thermally processing the amorphous chrome plating.
- Abrasion resistance: This is the most basic feature in the characteristics of chrome plating. It is processed on the surface of the part that slides all the time to remarkably improve the primary lifetime of machine.
- Building-up property: The chrome plating is used for the correction of dimensions or correction.
- Plating property: It is necessary fro the cylinder and the roller for press plate of offset and gravure picture etc. It extends the lifetime of part and simplifies the corrosion prevention or the removal of ink.
[Example of use]
- Piston, piston rod, piston ring
- Die
- Cylinder liner
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