MIL-STD-1500 Cadmium-Titanium Plating, Low Embrittlement, ElectrodepositionThis standard covers the process and materials required for the electrodepostion of cadmium-titanium on high strength steel substrates.

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MIL-STD-1500C

Nothing in this document; however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. DEFINITIONS

3.1 High Strength Steel. For the purpose of this standard, high strength steel is defined as steel heat treated to 1.24 X 109 Pa (180,000 psi) and above.

3.2 Material Batch. All items processed at one time through the plating bath.

4. GENERAL REQUIREMENTS

4.1 Materials and Equipment.

4.1.1 Materials. The use of reclaimed materials shall be encouraged to the maximum extent possible. Materials used in cadmium-titanium plating are as follows:

a. Cadmium Ball Anodes, A-A-51126 b. Cadmium Oxide, A-A-50800

c. Sodium Cyanide, Plating Grade, (96-98%NaCN)

d. Sodium Hydroxide, Flake or Granulated e. Titanium Additive Compound

f. Hydrogen Peroxide - 35% Technical Grade

g. Filter Aid, Diatomaceous, Celite 501, John Manville or equivalent.

4.1.2 Equipment. Equipment used in cadmium-titanium plating.

a. Either generated or rectified D.C. current may be used. Ripple value shall not exceed 10 percent as measured by dividing the Root Mean Square of the A.C. voltage component by the D.C. voltage.

b. Tanks should be resistant to the operating temperature and chemical environment. The cadmium plating tank must be of 300 series stainless steel, carbon steel with a rigid polyvinylchloride lining, or other suitable non-metallic material, which has been determined to be compatible with cadmium titanium plating solutions.

c. Plating tanks to be operated at temperatures other than room temperature shall be equipped with an automatic temperature indicating and regulating devices.

d. An ammeter shall be placed in series with the cadmium-titanium tank cathode. 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.