求助--铝合金表面处理ALOCROM 1000 CLEAN 处理工艺

钨锰合金 · 发表于 2009-1-8 16:13:49

求助--铝合金表面处理ALOCROM 1000 CLEAN 处理工艺.......谢谢了！

钨锰合金 · 发表于 2009-1-8 17:13:12

Alodine and Alocrom are two trade names for the same product. Alodine is the name the product is marketed under in the US. Alocrom is the name it is marketed under in Europe.
刚刚查到的。

怪怪 · 发表于 2010-3-23 08:46:35

这是铝材的磷化处理. 产生化学氧化膜. 是作为铝及其合金的防蚀和涂漆的底子用的.
使用含有铬酸盐, 磷酸盐,氟化物的酸性溶液.
特点是含有Cr, Al, P, F 等薄膜, 其膜薄且硬, 颜色为绿褐色或忽绿忽紫色.
又称 "阿罗丁法" ------ Alodine.

注意: 不是阳极氧化处理! 是化学氧化

怪怪 · 发表于 2010-3-23 08:55:16

ALOCROM 1200.pdf 的标准

s_jacky · 发表于 2010-5-28 09:08:48

bu neng xia a 给我发油箱好么?s_jacky@163.com

东昊 · 发表于 2010-6-10 08:44:49

全部是英文，看不懂啊

雪子 · 发表于 2010-6-10 21:17:56

学习了，原来铝不只有阳极氧化，导电氧化，还有化学氧化

怪怪 · 发表于 2010-8-30 09:19:45

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，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 colour 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BRUSH 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ALOCROM, 尤其是不能储存工作浓度的BRUSH 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。
4.Alocrom 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.  Deoxylyte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。

怪怪 · 发表于 2010-8-30 09:23:47

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。
b.Pipette 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.
在水中溶解大概0.5克的碘指示剂（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，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100CM3的酸；必要的时候，以100cm3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ALOCROM 浓度的办法来降低而不是添加浓缩硝酸。为此，以1克/升的增加量添加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“拖出”损耗
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/m2 (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/m2 (30-200 mg/sq ft).
If the coating does not form or is too light or too iridescent, the cause may
be one or more of the following:
如果不能形成涂层或镀层太轻太淡，或虹彩色过于明显，可能是以下一种或多种原因引起：
a.       The bath temperature is too low for the immersion time.浸没时浴缸溶液温度太低
b.       The immersion time is too short 浸没时间太短
c.       The concentration of the bath is too low 浴缸溶液浓度太低
d.       The pH of the bath is too high 浴缸溶液PH太高。
e. Heat treatment residues or an oxide layer on the metal surface are
preventing coating formation, these can be removed with
Deoxidiser (see relevant Data Sheet for details).
热处理后的残留物或五金件表面的氧化层都可以妨碍镀层形成，这些都可以用脱氧剂Deoxidiser去除（请参照相关的产品数据说明书）
f. The bath has been overheated. This can permanently upset the
chemical balance of the solution.
浴缸溶液过热，这可以永久性的破坏溶液的化学平衡。
g. The  bath  has  become  contaminated  with  phosphates,  sulphates,
etc., from a prior cleaning bath.
浴缸溶液在之前清洗浴缸时被磷酸盐、硫酸盐等污染

If the coating is too heavy or dark, the causes may be one or more of the
following:
如果镀层太重或色太深暗，可能是以下一种或多种原因引起：
a.       The bath temperature is too high for the immersion time.浸没时浴缸温度太高
b.       The immersion time is too long.浸没时间太久
c.       The concentration of the bath is too high浴缸浓度太高
d.       The pH of the bath is too low. 浴缸PH值太低
If the coating is powdery, the cause may be one or more of
the following:
如果镀层成粉状，应该是以下一种或多个原因造成：
a.       The work has been improperly cleaned and/or rinsed. 工件没有正确清洗
b.       The bath has become contaminated 浴缸溶液污染
c. The surface oxide has not been adequately removed. Treat with
Deoxidiser. 表面氧化物没有完全去除，可以用脱氧剂Deoxidiser

8.4 ALOCROM BATH MAINTENANCE
ALOCROM 浴缸维护

Restore the working level of the bath regularly with water to make good
evaporation and drag-out losses.
定期用水修复浴缸的工作水平面以发挥最佳的挥发作用和拖出损耗。
If any sludge accumulates and begins to interfere with the processing, the
bath should be cleaned out.  To do this allow the sludge to settle, siphon
or  pump  the  clear  solution  into  the  emptied  rinse  tank  and  discard  the
sludge.  Wash out the Alocrom tank and return the solution.  Fill the bath
up to its operating level with water and add Alocrom to bring the bath to
its working strength.
如果有任何淤泥累积并开始影响工艺操作，应该清洗浴缸。为此，用虹吸管吸或泵入清水到空水槽里并清除淤泥，把ALOCROM 洗干净并恢复溶液。用水填充浴缸到操作水平面并添加ALOCROM 达到工作浓度。

Alocrom baths have a very long life and for all practical purposes need
never be discarded.
ALOCROM的使用期很长，适用于所有实际用途，不需废弃。

TO BE CONTINUED

怪怪 · 发表于 2010-8-30 09:36:15

9. RINSING 水洗
Rinse for 15-30 seconds in clean running water.  The rinse water flowing to drain
will contain a low concentration of chromates (hexavalent chromium). A typical
figure  would  be  15  mg/l  (ppm)  Chromium (as  Cr),  and  this  may  need  effluent treatment  to  satisfy  the  requirements  of  the  Drainage  Authority. Details of a simple effluent treatment method will be supplied on request.
在干净的流动水中清洗15-30秒，流出的洗涤水会含有低浓度的铬（六价鉻），通常是 15MG/L(PPM) 鉻（即是Cr）,这需要作工业废水处理以符合排污方面的有关规定。可以提供简单的污水处理办法的细节。
If the work it to be painted, rinse finally in deionised water, or alternatively mains
water containing Deoxylyte (see the relevant Product Data Sheet for details).  To
help dry the work this rinse can be heated to 50-70°C.  Deoxylyte in the final
rinse  counteracts  the  effects  of  any  hardness  in  the  final  rinse  water  and improves the corrosion resistance. It also acidifies the surfaces before drying
and thereby ensures good paint adhesion even under prolonged humid conditions.  Alternatively, Alocrom 1200 can be used for the same purpose.  Add
50-250 grams of Alocrom 1200 per 1000 litres of final rinse. The pH should be
3-5.  Deionised water may be required to achieve this pH.
如果工件要做进一步的喷涂，最后要在去离子水中清洗，或在含有脱氧剂Deoxylyte的水中（参照有关的产品使用说明），为帮助工件弄干，冲洗可以加热到50-70°C。在最后清洗中的脱氧剂Deoxylyte可以抵消最后清洗水中的硬度作用，从而改善抗腐蚀作用。同时可以在干燥前酸化表面，从而确保了即使处在延长的潮湿条件下还有很好的喷涂粘附力。或者ALOCROM 1200可以用作同样的目的。每1000升的最后清洗水添加50-250克的ALOCROM 1200。PH 值应该是3-5，为达到该PH，可能需要去离子水。
The final rinse must be kept clean and it should be renewed once a day or, for
continuous  production,  once  a  shift. Use  deionised  or  distilled  water  for  final rinse make-up if possible.
最后的清洗水必须保持干净，并且应该每天更新一次或者，持续生产时，每班一次。可以的话，使用去离子水或者蒸馏水做最后清洗水的建浴。
10. DRYING 烘干
Air or oven dry the work.  Oven drying speeds up production and a peak metal
temperature  of  70°C  is  recommended. At  higher  temperatures,  there  may  be some loss of corrosion resistance, particularly on copper bearing alloys or where
articles are to be left unpainted.
空气晾干或烤箱烘干，烤箱烘干可以加快生产，建议五金的最高温度在70°C。如果温度更高的话，可能会引起抗腐蚀作用的部分丢失。尤其是含有合金的铜件或者是那些表面处理后不用喷涂的产品
There  is  no  restriction  on  the  stoving  temperature  of  paint  or  other  organic coatings applied over the Alocrom. 对ALOCROM 处理后进行喷涂的烤炉温度或者其他后处理的有机镀层没有规定

The freshly formed Alocrom coating is quite soft and care must be taken not to
damage it during rinsing and drying.  When dry, Alocrom treated parts may be
painted or put into service without further treatment.
刚形成的镀层太柔弱必须注意不要在清洗和干燥时不要损坏，干燥后，ALOCROM 处理后的产品可能要喷涂或者无需进一步处理就投入使用。
Operators should wear cotton gloves when handling freshly treated work.
操作者处理刚表面处理好的工件须戴棉质手套。

11. REMOVAL OF ALOCROM COATINGS
ALCOCROM 的退镀
Fresh  Alocrom  1200  coatings  may  be  removed  without  seriously  etching  the aluminium  by  immersing  in  50%  nitric  acid  or  in  the  Deoxidiser bath. Aged coating or those which have been heated are very resistant to chemical methods
of removal and an etching alkali will be necessary.
刚做的ALCOCROM 1200镀层可以浸没在50%的硝酸里或者脱氧剂Deoxidiser浴缸里去除镀层，而不会明显地腐蚀铝材。对于那些电镀后时间较久的或者那些加热后的工件会对这些化学方法去除镀层有很大的抵触，需要用到蚀刻碱。

12. EQUIPMENT 设备
The equipment consists of:-
包括如下设备：
a. Degreasing plant with suitable rinses where required and if necessary a
Deoxidiser or Desmut tank and rinse. 除油脱脂厂房，必要时有适当的冲洗设施，脱氧或剥黑膜缸、冲洗池。
b. An Alocrom tank constructed of 18 gauge type 316 (En58J) stainless steel
or  rigid  PVC, neoprene, polypropylene,  glazed fibre glass or polythene.
Rubber,  lead,  ceramic  or  glass  are  not  suitable.  It is not usually
necessary to heat the tank but if the temperature of the shop is likely to
fall below 18°C,  a steam coil or electric immersion heater should be fitted
to the tank.  The solution deteriorates rapidly if heated above 35°C and a
thermostat  MUST  be  fitted  to  a  heated  tank. Overheating  the  Alocrom
may result in the formation of toxic fumes.
ALOCROM 浴缸用18 标准 TYPE 316 (EN58J)不锈钢或硬PVC，氯丁二烯橡胶、聚丙烯、光滑的玻璃纤维或聚乙烯。橡胶、铅、陶瓷或玻璃是不适合的。通常不需要加热浴缸，但是如果工厂的温度下降到18°以下，浴缸应该安装蒸气旋管或浸没式电热器，如果加热到35°以上，溶液会很快变质，因此加热的浴缸要安装上恒温调节器。ALOCROM 浴缸过热的话可以形成毒烟。
The  tank  should  be  sited  in  a  well  ventilated  area  and  fitted  with  a
properly  designed  extract  system. As a guide,  air velocity  across  the

Alocrom should be about 25 m/min.  Tanks over 75 cm  wide should have
extract slots on both sides.  Typical slot velocity will be 700 m/min.
浴缸应该安置在通风良好的地方并安装设计合适的抽排系统。作为指引，ALOCROM 的空气流速应该在25米/分钟左右。宽度75厘米的浴缸两边应该有提取槽。槽的流速700米/分钟。
Further information on tank extract design can be obtained from 'Industrial
Ventilation' published by American Conference of Government Industrial
Hygienists (ACGIH).
有关浴缸抽排系统设计的有关信息，请参照美国政府工业卫生会议（ACGIH）发布的”工业通风”的有关内容。
c. An  unheated  water  rinse  tank  and  a  final  dilute  Deoxylyte  or  dilute
Alocrom  rinse  tank. The  water  rinse  tank  should  have  a  continuous
supply of water, a weir overflow and a draining valve; the final rinse tank
should be fitted with heating coils.
没有加热的水洗槽和最后稀释Deoxylyte钝化剂或稀释ALOCROM 水洗槽。水洗槽应该偶连续供水、溢出和排水阀；最后的水洗槽应该装上加热线圈。
d. A well ventilated oven for drying the work if required.
Work  can  be  handled  on  hooks  or  in  baskets  or  tumbling  barrels.
Containers  which  are  immersed  in  the  solution  should  be  of  stainless
steel, heavy gauge aluminium or plastic coated mild steel.  Care must be
taken  to  ensure  that  the  solution  can  circulate  freely  to  all  parts  of  the work.
Henkel Surface Technologies can aceept no responsibility for the accuracy or otherwise, of information, provided in good faith, which concerns plant, equipment or materials supplied by a third party. equipment or materials supplied by a third party.

13. HAZARDS AND HANDLING PRECAUTONS
危险性和操作注意事项
13.1 ALOCROM 1200 AS SUPPLIED
ALOCROM 1200的运输
Full information on hazards and safe handling of the chemical as supplied
is  given  in  the  Health  and  Safety  Data  Sheet  which  must  be  read  and understood by everyone handling or using the product.
Alocrom 1200 contains chromium trioxide (chromic acid) complex fluoride
salts and potassium ferricyanide (potassium hexacyanoferrate III).
When  handling  the  products  wear  PVC  or  rubber  gloves,  apron  and
rubber  boots.    Wear  chemical  goggles  and/or  a  face  shield  which
conforms  to  BS  2092  and  'The  Protection  of  Eyes  Regulations  1974'.
Wear a dust mask to BS 2091. Handle only in conditions of good wentilation.

OPEN CONTAINERS OF ALOCROM WITH CAUTION AND ALLOW ANY VAPOURS TO DISPERSE AND ANY DUST TO SETTLE FOR SEVERAL MINUTES BEFORE HANDLING THE POWDER.  DO NOT BREATH THE DUST.
13.2 Alocrom working bath
ALOCROM 浴缸操作
Operators  should  wear  chemical  goggles  and/or  a  face  shield  which conforms to BS 2092, and PVC or rubber gloves.
First aid
Skin contact
Remove contaminated clothing immediately. Drench the affected area with water and continue thorough washing with soap and water. Get medical attention if irritation or a skin rash develops
Eye Contact
Flush eyes with large quantities of cool water holding eyelids apart. Continue irrigation for at least 10 minutes. GET MEDICAL ATTENTION IMMEDIATELY.
Spills should be contained or absorbed using inert material.
Do not allow rags, sponges, paper or any organic matter which has become contaminated with Alocrom to dry out as this may constitute a fire hazard. Wash rags etc. with water and discard to a fireproof container.
14.FURTHER INFORMATION
Full information on the hazards and safe handling of the product as supplied is given in the Health and Safety Data Sheet which must be read and understood by everyone handling or using this product.

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