金属电镀件检验标准（CF级英文版）
1 Scope
This specification covers requirements and test methods for veral types of electrodeposited finishes where both appearance and
protection of the basis metal against corrosion are important.
2 Referenced Documents
STM B456-95 Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium
General Specification for Electrodeposited Coatings of Ni-Cr
M B368-97 Standard Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing
STM B571-97 Standard Practice for Qualitative Adhesion Testing of Metallic Coatingsflash player是什么
SA B125 Plumbing Fittings
GB 5933-86 Adhesion Testing Method of the Metal Deposits for the Light Industrial Products
GB/T 10125-97 Corrosion Tests in Artificial Atmospheres-Salt Spray Tests（eqv ISO 9227-90）
Evaluation of The Corrosion Test Results of the Metal Deposits on Cathode Basis Material (eqv ISO 4540-80)
Evaluation of the Corrosion Test Results of the Metal Deposits for the Light Industrial Products
3 Familiar Visual Defects
Defect Definition
Adhesion Coating that flakes or rubs off after being plated or PVD
Blister Bubbled or raid area that moves when touched with a pencil
Burn Roughness and grey appearance of surface
Cloudy Milky white plating
Dullness Lack of full shine
Entrapment
英语文章听力A continuous or cloly broken line that
Lines appears to be a raid area, but is not loo plating.
Glove Snaggers Roughness that breaks off or snags fibers from a cloth
Gross Flaw Any of the defects that can easily be en more than 900mm away or cau a corrosion failure or interfere with function.
Cuts and scratches Scratches due to handling or knocks during transport
Missout Area on surface that never received coating
Pits Depression in the plated surface Porosity Numerous small cloly spaced pits
Roughness Bumpy, rough surface raid and detectable by tough
Stains/Residue Brown, nonuniform dark shape surface contamination that can be removed by vigorous wiping
Stardusting Sparkly appearance like small stars or dust on the surface
Tool line Thin raid lines or scratched in ba material
4 Zone Definition
A zone：This is the most critical cosmetic article of the part. The A zone
is usually the most striking feature. It is what the customer es
first or is clost to the customer in the installed position.
B zone：The features are important but further removed from the
customer. B zone surface are easy to e in the installed
position.
C zone：The are the least important features in areas not directly
查单词en. Often, you must move your head or the product a
significant amount to e C zones in the installed position.
D zone：The zones are not important and can not be en at all after installation.
On the D zones of the electroplated article where the follow defects are acceptable：Pit, porosity, roughness, stardusting, cuts and scratches, tool lines, gross flaws, rough plating, cloudy plating, stains, burns, missout, blisters. Adhesion failures such as cracks and peeling plate shall be avoided.
驳回5 Appearance Criteria
defect Accept criterion
aesthetic
A zone
B zone
C zone
pits、
rough
plating、
docket
cuts and
scratches
Roundness
defect max
sizeylf
0.1mm20.2mm20.4mm2
The max
space to
each other
19 mm13mm3mm
Acceptable
amount
234 burns
If felt and not en in the installed
position
Cloudy
plating
校园演讲稿Per visual
control
samples
light
A few moderate porosity
stardusting
Tool line reject
Entrapment Lines Reject
One
allowed
in the
zone
up to
13mm
Two allowed in
the zone up to
13mm max
英语6级多少分过
size, no clor
than 3mm to
max
size
each other.
Discolored Per
tone color is OK providing that both are within the range and the difference is not en in asmbled/installed position.
stained reject reject reject
functional Adhesion failure
reject reject reject blister
Gross flaw
Glove snagger
missout小学英语第一册
6 Functional Requirement
6.1 Dimension
The import dimensions and connect threads shall be comply with the drawing.
6.2 Deposit Thickness Requirement
Thickness
On copper On zinc alloys Copper/≥5μm
tiffany是什么意思Nickel≥7.6μm≥10μm
Chromium≥0.25μm≥0.25μm
Aurum About 0.15μm，the articles shall not discolored
per the control samples.
Remark:
1. Plating thickness shall be determined by measuring thickness of three typical areas on the article. The should include low/high current density areas. The average of the measurements shall not less than the above thickness.
