| 摘要 |
AN invar alloy and a manufacturing method thereof are provided to reduce the loss of materials and a manufacturing cost. An invar alloy and a manufacturing method thereof comprises: a step preparing the electrolyte including calcium chloride of 38g, ferous chloride of 100g, nickel sulfate of 220g, nickel chloride of 120g, hydrochloric acid of 25g, sodium saccharin of 2g, and sodium lauryl sulfate of 0.2g based on the water 1L; and a step electronically plating in the state where temperature is 45-60°C pH of electrolyte is 0.5-1.5, the electric current density is 50-100mA/cm^2. The sodium lauryl sulfate is added for a surfactant function. The calcium chloride is added for the conductivity improvement of electrolyte.
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