阿罗丁处理
•阿罗丁1200S溶液的配制
Alodine 1200S Solution Preparation
•(1) Prepare the brush chemical conversion coating solution.
准备刷涂用溶液。
NOTE: Prepare the solution in small quantities. A solution that is not used in 24 hours is not usable and should be thrown away. A dirty solution is unsatisfactory.
要少量配制。24小时内没有用完的溶液不能再使用，应该丢弃。被污染的溶液不能使用。
•(2) Mix 3 ounces of Alodine 1200S powder and 1 gallon of deionized or distilled water in a polyethylene,
stainless steel container.
使用聚乙烯或不锈钢容器。每1加仑水加入3盎司阿罗丁1200S。
（1加仑水如果是美制就是3.79千克、1盎司=28.350克 即100：2.25）
•(3) Mix until powder is dissolved.
搅拌至粉末溶解。
•(4) Let solution stand at least 1 hour before it is used.
使用前，溶液静置1小时以上。
NOTE: If you mix with nondistilled water, add nitric acid to control the pH. Use pHydrion papers to find the pH level. For the Alodine products, the pH must be 1.50 to 2.00.
用非蒸馏水配制的溶液，加入硝酸调整pH值（用 pH试纸检测）。阿罗丁的pH值应改在1.50-2.00之 内。
•刷涂前表面准备
Prepare the surface for chemical conversion
coating application.
(1) Mask all of the surface areas that need protection from running, splashing or dripping of the solution.
保护所有不能接触到溶液的表面。
(a) Seal or plug all possible entry points to assemblies with honeycomb or foam plastic
components.
堵上可能进入内部蜂窝或塑料泡沫结构的一切入口。
(b) Painted, anodized or previously conversion- coated surfaces do not need to be masked.
喷漆、阳极氧化或先前做过转化膜的表面不需保护。
(2) Clean the area to be chemical conversion-
coated with a solvent or degreaser and a clean brush or rags. Dry with warm air or wipe dry.
用干净的刷子或抹布蘸溶剂（或除油剂）清洁待做区域。用暖气中干燥或擦干。
(3) Remove all of the finish and protective coating from the repair area. Remove the anodized, chemical conversion coatings mechanically with:
去除待修理区域的所有的漆层和涂层。使用以下材料机械清除阳极氧化和化学转化膜：
(a) Tycol, Type 3A, very fine aluminum oxide wheels
attached to a drill motor, or
(b) Scotch-Brite pad, Type A, or
(c) 400-grit aluminum oxide paper.
(4) Clean until all signs of organic or inorganic coatings are gone and only a bright shiny aluminum
surface shows. Wipe dry with a clean cheesecloth to remove loose particles and residue.
清洁所有的有机、无机涂层，露出闪亮的铝基体表 面。用洁净的抹布擦掉上面的残余的涂层颗粒和灰尘。
(5) Wipe with a clean cheesecloth moist (not soaked)
with solvent, Series 88 or an equivalent solvent. Do this step again and again until no visible residue
shows on the cheesecloth after wiping.
用洁净的抹布蘸88系列（或等效的）溶剂擦拭表面。重复操作直到抹布上没有杂质。
(6) Allow a minimum of 15 minutes for the surface to dry.
放置至少15分钟使表面变干。
(7) Remove all corrosion that may have occurred
as given in steps (1) thru (6) above.
参照1-6步去除所有腐蚀。
(8) Refer to 51-20-05, GENERAL and AMM 28-11-
00 for instructions to clean the structure and
the repair parts before the installation of sealant in the integral fuel tanks.
整体油箱清洁参照SRM51-20-05, GENERAL 和
AMM 28-11-00 。
• 阿罗丁1200S溶液的使用
Alodine 1200S Solution Application
(1) Apply the Alodine 1200S solution with a fiber or nylon brush or clean, cotton wiper.
使用纤维，尼龙刷或洁净的棉布刷涂。
(2) Rub the wet surface until a gold color comes into view (after approximately 30 seconds).
刷涂表面直到出现金色（大约在刷涂开始后30秒）。
(3) Flush the surface with clean water and wipe it
dry with clean, cotton wipers.
用洁净的水冲洗，并用干净的棉布擦干。
(4) Let the surface dry for 1 to 3 hours.
让表面干燥1-3小时。
(5) Apply a finish or start an adhesive bond as soon as possible after the surface is dry.
表面变干后，尽可能地立即涂漆或开始作胶。
•镁合金转化涂层
Magnesium Alloys - Conversion Coating
•Materials Required: (1) Chromic Acid
(2) Calcium Sulfate
(3) Cheesecloth
(4) Solvent - General Cleaning of Metal (Series
88) (refer to SOPM 20-30-88)
(5) Sodium Hydroxide
(6) Sulfuric Acid
•溶液配制
Prepare the Solution
The solution must be prepared and stored in polyethylene or glass container.
必须使用聚乙烯或玻璃容器配制或储存。
(1) Fill a clean polyethylene or glass container to the 9/10 level with distilled water.
容器中加入9/10总容量的蒸馏水。
(2) Slowly add 1-1/3 fluid ounce (39.5 milliliters) of chromic acid per gallon of final solution.
在每加仑最终溶液中，缓慢加入1-1/3 fluid ounce 的铬酸。
(3) Add 1 fluid ounce (29.6 milliliters) of calcium sulfate per gallon of final solution.
每加仑最终溶液中加入1 fluid ounce 硫酸钙。
(4) Fill to final solution level with distilled water.
添加蒸馏水至最终溶液液面。
(5) Stir vigorously for 15 minutes to ensure that the solution is saturated with calcium sulfate.
快速搅拌15分钟使硫酸钙充分溶解。
(6) Let solution stand for 15 minutes to allow undissolved calcium sulfate to settle to the bottom of the container.
静置15分钟使未溶硫酸钙沉淀到容器底部。
(7) Decant to another polyethylene or glass
container without transferring undissolved calcium sulfate.
将溶液缓慢倒入另外的容器中，不要倒出沉淀。
(8) Adjust pH with additions of sodium hydroxide or sulfuric acid to bring within a range of 1.2 to
1.6.
加入氢氧化钠或硫酸调整pH在1.2 -1.6之间。
•Apply the Conversion Coating
SEVERE RUBBING OF WET SURFACE CAN CAUSE COATING DAMAGE.
(1) Apply solution by swabbing with brush, sponge. Maintain a continuous wet film until metal surface becomes dull golden or dark brown in color.
用刷子，海绵等刷涂。保持表面湿润直到形成暗 金色或暗褐色的涂层。
Discard used solution.
丢弃剩余的溶液。
(2) Rinse with cold, clean water.
用洁净的冷水冲洗。
(3) Allow to dry at ambient temperature. If possible, use low pressure air to dry the surface.
室温下干燥。如果可能，可以使用低压压缩空气 吹干。
(4) Restore the original finish as soon as possible after drying. Handle parts with clean gloves and
keep parts clean and dry to avoid surface contamination.
干燥后尽快地保存表面。用干净的手套拿持工 件，保持部件清洁干燥，避免污染。
•钢的镀镉
Steel - Cadmium Plating
Procedures
a. Noncorrosion-resistant steel parts that you use
for repairs must be cadmium plated for maximum
protection from corrosion.
For the procedures to apply cadmium plating, refer to SOPM 20-42-01 and SOPM 20-42-05. For procedures to prime the surface, refer to SOPM
20-41-02. 非不锈钢修理件必须镀镉。 镀镉工艺参照SOPM 20-42-01 和 SOPM 20-42-
05，涂底漆参照SOPM 20-41-02。
b. Corrosion-resistant steels (CRES) contain more than 14 percent by weight of chromium and less than 0.2 percent carbon. These types of steels are very corrosion resistant.
不锈钢含有14%的铬，含碳小于0.2%。较耐腐 蚀。
c. Corrosion resistant steels usually do not require more protection by plating or a protective finish, other than a passivation treatment that removes surface contamination and will keep a thin stable oxide layer on the surface.
不锈钢不需电镀或保护性涂层，但是钝化工艺能 去除表面的污染物，并能在钢表面形成一薄层稳定 的氧化层。
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