MIL-STD-871B
4.1.2 Equipment.
a. Tanks should be resistant to the operating temperatures and the chemical environment.
b. Stripping tanks to be operated at temperatures other than room temperatures shall be equipped with automatic temperature indicating and regulating devices.
c. Either generated or rectified D.C. current may be used. An ammeter shall be placed in series with the tank anode. The ammeter shall have sufficient shunts and switches to provide a full-scale reading equal to the maximum capacity of the power source, and an accuracy of ± 10 percent of the current being measured.
d. An oven capable of baking parts at 190 ± 14'C (375 ± 25'F) shall be located near the stripping line. The size of the oven shall be adequate to enclose the parts to be stripped. The oven shall be equipped with temperature indicating, recording, and regulating devices.
4.2 Finish. The part, after stripping shall have a finish that is smooth and free from pits, nodules, and any other indications of harmful defects.
4.3 Racking. Sufficient contact area and pressure shall be provided to carry the current without overheating. Racking should be performed at the most convenient step prior to stripping.
4.4 Masking. Sections or areas of a part that are not to be stripped shall be masked off. Plug and masking materials that do not contaminate the stripping solution shall be used. Masking shall be performed at the most convenient step prior to stripping.
4.5 Baking. All requirements for baking of the part shall be met.
4.5.1 Special baking requirement. Steel parts heat treated to 1240 MPa (180,000 psi) and above, shall be baked within four (4) hours of stripping for four (4) hours minimum at 190 ± 14'C (375 ± 25'F). Other process operations can be performed on the part provided they are accomplished within the time limit. No plating process may be used prior to baking.
NOTE: Steel parts stripped in solutions 1, 3, 5, 6, 11, and 14 will not require baking.
5. DETAILED REQUIREMENTS
5.1 Immersion of Parts. Parts shall be immersed in the process solution in a manner to prevent localized effects such as interface attack.
5.2 Dissimilar Metals. Dissimilar metal inserts shall be masked off or removed as necessary.
5.3 Immersion Processes. Immersion processes for stripping are preferred for parts having recessed areas, intricate shapes, or hollow areas.
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