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电镀专业翻译作品
-ALOCROM 1200
(1)
Alocrom 1200 is a rapid
non-electrolytic dip process which gives excellent
protection against
corrosion to both
painted and unpainted aluminum surface.
Alocrom 1200
1.
PRODUCT DESCRIPTION
产品描述
It forms a
protective golden colored chromate (Hexavalent
chromate) coating on aluminum and its
alloys.
是一种非电解质浸没工艺，在铝或其合金表面
形成一金色鉻化膜，
具有良好的防腐性能，可以用于需
要喷涂的
表面和不需喷涂的表面。
2.
FEATURES
产品特色
:
1
.Excellent corrosion resistance
非常好的防腐性能
ALOCROM
1200 gives excellent protection against corrosion
to both painted and unpainted
aluminum
surfaces
2 .Flexible
adherent coatings
柔韧的粘附层
ALOCROM 1200 coatings are integral with
the metal and will withstand bending and denting
of the
surface
3. Maximum paint adhesion
最佳的喷涂粘附力
ALOCROM
1200 provides an excellent foundation for paint
and other organic finishes
4. Short immersion time
浸没时间短
ALOCROM
1200 requires only a few minutes for coating
formation
5.
Negligible heating costs
加热成本几乎为零
（室温内操作，吹干）
ALOCROM 1200 operates at room
temperature and the work can be air dried where
convenient
6.
Low coating costs
表面处理成本极低
For a medium weight coating only about
0.25kg of Alocrom is used in processing 100 m2
(1000 sq ft)
of metal surface
7. Low electrical resistance
低电阻
Light to
medium Alocrom coatings have minimum effect on
surface electrical resistance. The contact
electrical resistance is less than 5000
micro-ohms per sqare in ch measured under an
applied
electrode pressure of 200
pounds per sq in. (MIL-C-5541 Method)
Approval Standard:
参照标准
ALOCROM 1200
is approved to DEF STAN 03-18 Certificate No.
031801 for use on aircraft, (including
special approval for repairing damaged
anodic coatings).
Outside
the UK the process is known as Alodine 1200;
Alocrom 1200 and Alodine 1200 are
chemically identical. Alodine 1200
features on the QPL for MIL-C-5541 (CLASSES 1A &
3)
Alodine 1200
跟
Alocrom 1200
化学成分一样的，在英国人们称作
Alocrom 1200<
/p>
，而其它地方通常
称作
Alodine
1200
，对应的标准为
MIL-C-5541
(CLASS 1A & 3)
2.
USES
Alocrom 1200 is ideal
for coating all types of aluminum and aluminum
alloys including high silicon
pressure
die-castings. It should be used on aluminum
wherever maximum corrosion resistance is
required, and is suitable for articles
which are to be painted or left unpainted. Its
uses including
general industrial work,
electrical components, domestic appliances, car
body parts and aircraft
components.
Alocrom 1200 is unaffected by steel, brass or
copper inserts in the articles being
processed and can be used for treating
zinc and aluminum in the same bath.
ALOCROM 1200
适用于所有类型的铝和铝合金包括
高硅压力的压铸件表面处理。应该用在要求产生
最大抗腐蚀力的铝表面，同时也适合那些
要求后续喷涂或不用喷涂的产品。它的用途包括用在一般工
业工件、电气元件、家用电器
，汽车主配件和飞机构件。同时也用作在同一浴缸处理锌和铝
Alocrom 1200 is unsuitable for
producing a decorative effect on unpainted alloys
which are subject
to exterior
weathering since some change in colo
ur
may occur under these conditions. The process
should not be used to treat foodstuffs
containers.
ALOCROM 1200
不适用于用作不需喷涂合金装饰用途，因在室外的风蚀条件下会出现颜色变化。该
工艺也不适宜处理食品容器。
For large
scale continuous production, Alocrom 1200 may be
applied in a conventional spray
washing
plant.
对于大规模的连续生产，
ALOCROM
1200
可以在一个喷洗的工厂应用。
For brush application use only Brush
Alocrom 1200 liquid. This product is supplied as
a two pack
product. Do not use the
powder to make up Alocrom 1200 for brush
application and especially do
not store
working strength brush Alocrom 1200 solution as
toxic cyanide fumes can accumulate in a
closed container.
如用于刷油作业，只能使用
BRUS
H
ALOCROM 1200
液体，
该
产品作为双包装产品提供。不能用粉
末制备涂油作业的
ALOC
ROM,
尤其是不能储存工作浓度的
BRUS
H
ALOCROM 1200
溶液，因为在密
闭的容器内可以慢
慢的累积氰化物毒烟。
m 1200 bath
control points
Alocrom
1200
浴缸控制要点
Temperature: 18-27 °C (65-80 F)
温度：
18-27 °C
Immersion Time:2-5 minutes
浸
没时间：
2-5
分钟
Coating weight: 0.3-2.0g/m3
涂布量（镀层重量）：
0.3-2.0
克
/
立方米
Chemicals
required: Alocrom 1200 power. Nitric acid may also
be required
所需的化学物品：
Alocrom
1200
粉末，必要时用硝酸
Bath make-up: 8kg Alocrom 1200 per 1000
liters of water
浴缸制备：每升水加入
Alocrom 1200
粉末
8
公斤
Bath strength
Titration: 3.3-4.0 cm3
浴缸滴定数：
3.3-4.0 cm3
5. PROCESS:
操作要点：
The
complete pretreatment process consists of the
following steps:
完整的前处理包含以下步骤：
a.
preclean by solvent vapour degreasing or by using
a suitable Ridoline, Novaclean or Almeco
cleaner plus water rinse/
前处
理清洁，用溶剂蒸气脱脂或用合适的清洁剂如
Ridoline, Novaclean
or
Almeco
，加上水洗。
b. Deoxidise or Desmut where necessary
followed by a water rinse.
必要时，水洗后脱氧或剥黑膜。
c.
Alocrom treatment : ALOCROM1200
处理。
d. Water
rinse
水洗
e.
Deoxylyte rinse and/or deionised water rinse. Deo
xylyte
洗和
/
或者用去离子水洗
。
See Section 7 - OPERATING
NOTES for further details
concerning steps a) and b).
关于
a.) b)
步骤的详细信息，
请参照
第
7
部分
—
操作要点
6. ALOCROM 1200 BATH MAKE-UP
6. ALOCROM 1200
浴缸制备
6.1
Chemicals Required:
所有要求的化学物：
The process requires Alocrom 1200
powder and, in some cases, small regular additions
of
concentrated nitric acid during
replenishment.
该工艺要求使用
Alocrom 1200
粉末，同时，某些时候在补充浴缸时，需要少量定期添加浓缩硝酸
6.2 Precautions for make-up and
replenishment
制备和补充浴缸时注意事项
Before opening the Alocrom 1200
container refer to Section 12
- HANDLING PRECAUTIONS.
在打
开
ALOCROM 1200
容器包装时，请先参照第
12
部分
-
操作注意事项
6.3 Make-up
浴缸制备
Fill the bath to its operating level
with water. Deionised or distilled water
is recommended to prevent
calcium or magnesium salts precipitating out
and reducing the efficiency
of the bath. Slowly add 8 kg of Alocrom 1200
powder per 1000 litres of
water and stir well until the powder has
completely
dissolved.
The
tank
extract system must be running
during bath make-up.
For
the best results, a new bath should age for 24
hours and it should
therefore be made up at least a day
before production commences.
用水填充浴缸到一定的操作水平面，
建议使用去离子水或者蒸馏水以防止钙或镁沉淀
出来，
降低浴缸
效率。
每
1000
升水添加
8KG
的
ALOCROM 1200
粉末，
慢慢的添加并搅拌直到粉末彻底的溶解。
浴缸的制备过程中槽的排泄系统必须打开。为达
到最佳效果，新制备的浴缸不能超过
24
小时，因此
至少在生产开始前一天才制备。
ALOCROM
1200 (2)
7. ALOCROM 1200 BATH CONTROLL
ALOCROM 1200
浴缸的控制
7.1 ALOCROM
TITRATION:
浴缸滴定
a. Adjust the Alocrom bath to its
normal working level with water and stir.
用水调整浴缸到正常的操作水平并搅拌。
e 5 cm3 of the Alocrom bath into a 250
cm3 flask and dilute to about 100cm- with water.
Take care that none of the solution is
spilt throughout the test.
用吸管吸
5 cm3
的
ALOCROM
溶液到到
250 cm3
烧瓶并用水稀释到大概
100CM3
注意在整个试验
过程中不能有溶液溢出。
c. Add about 1 gram of potassium iodide
and agitate to dissolve.
添加
约
1<
/p>
克的碘化钾
并振摇至溶解。
d. Add
about 5 cm3 of concentrated hydrochloric acid and
mix. Leave to stand for about 1 minute.
添加大概
5 cm3
的浓缩盐酸并混合，放置
1
分钟左右。
e. Titrate the solution with 0.1N
sodium thiosulphate until a straw colour is
obtained.
用
0.1N
的硫代硫酸钠滴定溶液，直到获取淡黄色为止。
f. Dissolve about 0.5 grams of iodine
indicator (Iotect) in water and add to
the flask. A blue-black colour will be
obtained. Continue the titration to
the colourless end point.
<
/p>
在水中溶解大概
0.5
克的碘指示剂（<
/p>
LOTECT
），并添加至烧瓶。或出现深蓝色。继续滴定到无色
终
点。
The number of
cm 3 of sodium thiosulphate added is the strength
titration
3
of the bath and this should be
maintained at 3.3 - 4.0 cm . Add 2 kg of
3
Alocrom 1200 powder per 1000
litres of bath for each cm
below
the
required value.
所添加的硫代硫酸钠的
cm
3
数就是浴缸的浓度滴定，这应该保持在
3.3-4.0 cm
3.
在要求值以下的
每
cm 3
，每
1000
升浴缸要添加
2KG
ALOCROM 1200
粉末
Refer to Section 12 - HANDLING
PRECAUTIONS before opening the
Alocrom 1200 container
在打开
ALOCROM 1200
容器
包装前，
请参考第
12
部分的内容
—
操作注意事
项。
7.2 PH Controll
PH
值的控制
For correct coating formation, Alocrom
baths should be operated at a pH
between 1.6 and 2.2. If the coating
takes longer to form than normal and
is lighter coloured or non-adherent,
this indicates that the pH is rising and
it should be lowered by
adding concentrated nitric acid when replenishing
the bath. Initially, add
100 cm3 of acid for each 4kg of Alocrom needed to
replenish bath; if
necessary increase
the amount in 100 cm3 increments, up to a maximum
of 1 litre/4 kg until
consistent
coatings are obtained. The amount of nitric acid
added must be kept as low as possible
and the maximum must be exceeded. After
each addition of acid, wait for several hours
before
adding more acid to ensure the
bath has reached equilibrium
If
preferred, the pH can usually be lowered by
increasing the Alocrom
concentration rather than adding
concentrated nitric acid. To do this add
Alocrom in 1 gram per
litre increments until consistent coating are
obtained. The total
Alocrom concentration must not exceed 14 kg
per
1000 litres which
corresponds to a titration of 7 cm .
Once the optimum
operating
strength for a particular plant has been
established, the bath should be
maintained at that strength by small
additions of Alocrom 1200
powder as indicated by titration.
为使镀层正常的形成，
ALOCROM
的浴缸应该控制在
PH 1.6-2.2
之间。
如果镀层形成的时间比正常<
/p>
的时间要久而且颜色比较淡或没有粘附力，
这表示
PH
在上升。
在补充浴缸的时候，
< br>可以添加浓缩硝
酸减低
PH
值。
开始的时候，填充浴缸需要每
4KG ALOCROM
添加<
/p>
100CM3
的酸；必要的时候，以
10
0cm3
增加量增加
到
1
升
/4KG
的最大值。直到获得符合要求的镀层为止。添加硝酸的用量尽可
能控制得最小。不能超
出最大值。每次添加完酸，要等几个小时才可以进一步添加以确保浴缸平衡。
最好，
PH
常常可以通过添加
< br>ALOCROM
浓度的办法来降低而不是添加浓缩硝酸。为此，以
1
克
/
升
< br>的增加量添加
ALOCROM
，直到镀层符合要求。总的
ALOCROM
浓度不能超过
14KG/1000
升，这相
当于
7cm 3
的滴定数。一旦设立了最佳的操作浓度，那就要根据滴定数
，少量添加
ALOCROM
1200
粉末来确保该浓度。
8.
OPERATING NOTES
8.1
PRECLEANING
Remove all grease by
solvent vapour degreasing or by using Ridoline,
Novaclean or Almeco
cleaner. Rinse where necessary.
通过溶剂蒸气脱脂或使用
Ridoline,
Novaclean
或
Almeco
清洁剂去除油脂，必要的时候水洗。
If the oxide skin is very light no
further precleaning is required. However, if the
oxide skin is heavier
eg. on
extrusions, heat treated sheet aluminium or cast
alloys etc, it will normally need removing
with Deoxidiser. See Data Sheet on
Deoxidisers 1, or 7/17 for details.
如果氧
化皮膜很轻，不要求
进一步预清洗。但是如果氧化皮膜比较重，如在挤型材，热处理后的
铝板或压铸合金等上的，通常需
要
Deoxidiser
（脱氧剂）去除油脂。有关的明细请参考
Deoxidiser
（脱氧剂）
1
、或
7
/17
上面的数据
说明书
.
Copper containing alloys
tend to smut in etching alkali cleaners and the
copper smut should be
removed by
dipping the component in 10% nitric acid or
Deoxidiser 7/17. Alloys containing more
than about 1% of silicon,
such as those commonly used for
die castings, give a silicon smut if
etched in alkali and this cannot
be removed by nitric acid or any other
practicable
methods. Such alloys are
best solvent degreased and given a light etch in
Deoxidiser 7/17 before
the Alocrom
treatment.
含有合金的铜在蚀刻碱性的清洁剂中
容易变黑。铜上面的污点应该把工件浸泡在
10%
的硝酸或脱氧
剂
Deoxidiser 7/17
中
去除。含硅在
1%
以上的合金，如普遍用于压铸件中的那些，如
果在碱性中侵
蚀，会让硅产生污点，这污点无法用硝酸或任何其他实用的办法去除掉。在
ALOCROM
处理前，这
些合金在
脱氧剂
Deoxidiser
7/17
中最好的被溶剂脱脂并造成轻度蚀刻。
8.2 ALOCROM TREATMENT
ALOCROM
处理
Immerse in the Alocrom 1200 bath
for 2-5 minutes at 18-27°C.
After
removing
the work from the bath allow it to drain
over the tank for 15
seconds. This
will avoid unnecessary contamination of the
rinse and
reduce drag out
losses.
在温度为
18-27°c
的
ALOCROM 1200
浴缸中浸
没
2-5
分钟，从浴缸溶液中拿起工件后在槽上晾
15
秒，让其流干，这可以避免洗涤水不必要的污染并减少
< br>“
拖出
”
损耗
< br>
8.3 ALOCROM COATING CONTROL
ALOCROM
镀层控制
Baths operating correctly give thin,
adherent coatings ranging in color
from iridescent gold to golden yellow.
Typical coating weights are in the
range 0.3 to 2.0 g/m? (30-200 mg/sq
ft).
浴缸溶液如果操作正确，
应该可以产生一层薄薄的、
粘附在工件上的镀层，颜色介于虹彩金色到金黄
色之间。镀层重量（涂布量）介于
0.3
到
2.0 g/m?
(30-200 mg/sq ft).
If the coating does
not form or is too light or too iridescent, the
cause may
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