SECTION IV – REPAIR 修理（三）-J.Method No. 403J: Selective Electroplating-航修札记

3. Repair and Application of Protective Coatings and Plating
防护涂料及电镀的修复与应用

J.Method No. 403J: Selective Electroplating

Method No. 403J:选择性电镀

NOTE: If parts out of applicable manual limits, selective plating can be used to repair dimensions. Refer to AMS 2451 applicable specifications.

注：如果零件超出适用的手册限值，可以选择性电镀来修复尺寸。请参考AMS 2451适用规范。

NOTE: If surface to be to be repaired is in the applicable manual requirements, but out of dimensional limits, selective plating can be applied to a thickness of 0.0002 to 0.010 inch (0.005 to 0.25 mm). If a sequence of grind-plate-grind is to be used, the minimum plate thickness must be 0.001 inch.

注：如果待修复的表面在适用的手册要求中，但超出尺寸限制，则可对厚度为0.0002至0.010英寸(0.005至0.25毫米）进行选择性镀层。如果要使用研磨-板-研磨序列，则最小板厚必须为0.001英寸。

WARNING: USE THE CORRECT PERSONAL PROTECTION. PROCEDURES THAT NEED GRIND/MACHINE WORK WILL CAUSE LOOSE PARTICLES THAT CAN GET IN YOUR EYES.

警告：使用正确的个人防护设备。需要研磨/机械加工的程序会产生松散颗粒，可能进入眼睛。

(1) Machine surfaces to remove damage or all remaining coating. 100 percent clean up is necessary.

机械加工表面去除损坏或所有剩余涂层。必须进行100%清洁。

NOTE: Make sure minimum stock material is removed. Do not machine more than the limits specified in applicable manual. Keep stock removal uniform to facilitate plating.

注：确保去除最低堆叠材料。不要超过适用手册中规定的限制进行加工。保持去除的堆叠均匀，以方便电镀。

(2) If necessary, perform magnetic particle or fluorescent penetrant inspection. No cracks are permitted. Refer to SECTION III – INSPECTION.

必要时，进行磁粉或荧光探伤检查。不允许存在裂纹。请参阅第III节—检查。

NOTE: Do these inspection procedures only for rotating components. Refer to applicable manual.

注：这些检查程序仅适用于旋转部件。请参阅适用手册。

(3) Clean the part. Refer to SECTION II – CLEANING.

清洁部件。请参阅第II节-清洁。

(4) Mask all areas not to be plated.

遮盖所有未进行镀层的区域。

WARNING: USE THE CORRECT PERSONAL PROTECTION. HEATED PARTS WILL CAUSE BURNS.

警告：使用正确的个人防护装置。加热部件会造成灼伤。

(5) If necessary, preheat part before application of plating in accordance with AMS 2451.Refer to applicable manual.

如有必要，根据AMS 2451，在进行电镀前对零件进行预热。请参阅适用手册。

WARNING: USE THE CORRECT PERSONAL PROTECTION. THIS PROCEDURE MUST BE DONE BY AN APPROVED PLATING FACILITY. THE CHEMICALS USED IN THIS PROCEDURE CAN CAUSE SKIN, EYE, AND LUNG DAMAGE.

警告：使用正确的个人防护设备。本程序必须由经批准的电镀工厂执行。本程序中使用的化学品可能导致皮肤、眼睛和肺部损伤。

(6) Apply electroless nickel plating. Refer to AMS 2451. Refer to applicable manual for necessary plating thickness.

进行化学镀镍处理。请参考AMS 2451。请参考适用手册以了解必要的镀层厚度。

(7) Remove masking material.

移除遮蔽材料

WARNING: USE THE CORRECT PERSONAL PROTECTION. HEATED PARTS WILL CAUSE BURNS.

警告：使用正确的个人防护装置。加热部件会造成灼伤。

(8) If necessary, increase the temperature of the repaired part as specified in AMS 2451.Refer to applicable manual.

如有必要，按AMS 2451中的规定提高修理零件的温度。请参阅适用手册。

WARNING: USE THE CORRECT PERSONAL PROTECTION. PROCEDURES THAT NEED GRIND/MACHINE WORK WILL CAUSE LOOSE PARTICLES THAT CAN GET IN YOUR EYES.

警告：使用正确的个人防护设备。需要研磨/机械加工的程序会产生松散颗粒，可能进入眼睛。

(9) Machine surfaces to finish dimensions. Refer to applicable manual for repaired limits and surface finish.