Page 979 - MiSUMi FA Mechanical Components Economy Series

[Materials]
Types and Apparent Colors of Surface Treatment

Q Types of Surface Treatment
Vickers Layer Applicable
Name Hardness Thickness Example Purpose, Features Reference
(HV) (μm) Materials
Zinc Plating  3։20 Steel Thin ·Antirust, low price. 
·Poor appearance.
Plate Wire
Chromate Plating  1։ 2 Steel Plate Work ·Antirust, low price.
Bolts and Nuts.
·Fit for mass production.
· Poor appearance, however, 
Bright Chromate  1։ 2 Steel − works instead of nickel plating.
Trivalent  1։ 2 Steel Bolts and Nuts ·Antirust, low price. 
Chromate ·Do not contain hexavalent chrome.
·Improvement of corrosion resistance and decoration · Copper base plating as appropriate.
Nickel Plating   · Chrome plating has more corrosion · Not applicable to deep
resistance in the atmosphere. indentations.
Steel
Class 1 Plating 500 5։20 Copper − ·Better appearance than Class 3 plating. ·MaterialUBuff UUPlatingUBuff
Class 3 Plating Brass − ·MaterialUPlating
Satin Finish   ·Fatigue resistance.
Plating ·Minor fl aws remain inconspicuous. ·MaterialUSatin fi nishUPlating
Steel · Approx.10 times more expensive
than nickel plating.
Electroless Stainless Parts Unsuitable ·Easy fi lm thickness control.
Nickel Plating 500 Steel for Nickel ·High corrosion resistance, abrasion
Copper Plating. resistance.
Specifi able 
Aluminum ·Give Conductivity to Non-Metals
Alloy · Same as the features of
Kanigen Plating 〳鴪ⵌ Glass Parts hardened electroless nickel plating.
after Plating.
1000
Plastic
·Can be hardened by heat treatment after plating.
·Appearance with gloss · Nickel base plating
Chrome Plating   ·Good corrosion resistance as appropriate.
· Sliding chrome plating surfaces ·Not applicable to deep
are easy to stick together. indentations.
Class 1 Plating 500 5։20 Steel − ·Better appearance than Class 3 plating. ·MaterialUBuff UUPlatingUBuff
Class 3 Plating Copper − ·MaterialUPlating
Brass
Satin Finish ·Fatigue resistance. ·MaterialUSatin fi nishUPlating
Plating   ·Minor fl aws remain inconspicuous.
Hard 1000 10։30 Cylinder Liners ·Excellent abrasion resistance. ·MaterialUPlating(Class 3
Chrome Plating ·More expensive than other chrome plating. Plating)
Black Oxide Steel Bolts ·Base coating. ·General Black Oxide
Nuts
·Appearance(with gloss).
(Blackening)   Instruments ·Rusts more easily than Tuff tride
Low Temperature Steel Items requiring high precision, ·Long term antirust performance. · Low-Temperature Preliminary
Black Chrome  1։ 2 Copper items requiring higher corrosion ·High corrosion resistance. Treatment. No thermal effect
on raw material. Parts coupled
Plating Stainless Steel resistance than blackening. ·Ultra thin fi lm. with plastic matter, rubber, etc.
Clear  3։ 5 ·Corrosion and abrasion · Some anodize pieces are
Anodize Aluminum − resistance. colored through fi ne holes in
·No electric conductivity.
the hard, oxidized fi lm formed
Alloy
Black  5։10 ·Heat Resistance on the surface.
Q Apparent Colors of Surface Treatment
Bright Chromate Trivalent Chromate Electroless Nickel Plating Hard Chrome Plating

Black Oxide Anodize(Clear) Anodize(Black)

976