Anti-oxidation tinning solution based on yttrium, bismuth and phosphorus
An anti-oxidation and tin plating solution technology, applied in hot dip plating process, coating, metal material coating process, etc. The problem of high cost of oxidizing agent can achieve the effect of low cost, inhibiting oxidation and improving wettability.
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Embodiment 1
[0024] Take two parts of 100g tin plating solution, which are respectively recorded as 1# and 2#. Under the condition of temperature 230°C, add yttrium, bismuth and phosphorus to 1# tin plating solution at the same time; among them, based on the weight of tin plating solution, The weight percentages of added yttrium, bismuth, and phosphorus are 0.02%, 0.04%, and 0.02% respectively, and yttrium is added in the form of yttrium-tin master alloy, and the yttrium content is 1% of the mass of the yttrium-tin master alloy; bismuth Add in the form of bismuth-tin master alloy, and the bismuth content is 1% of the mass of the bismuth-tin master alloy; phosphorus is added in the form of phosphorus-tin master alloy, and the phosphorus content is 1% of the mass of the phosphorus-tin master alloy. 5%.
[0025] 2# tin plating solution is the blank control group. After oxidizing 1# and 2# tin plating solutions for 5 hours respectively (oxidation conditions: heating at room temperature to 230°...
Embodiment 2
[0041] This embodiment takes the industrial tin-plated copper production line as an example, the tin melt of 20kg is filled in the tin furnace of the tin-plated copper production line, and the temperature is 225-235 ℃. Add 0.2kg-0.4kg of 1% yttrium-tin master alloy, 0.2kg-0.8kg of 1% bismuth-tin master alloy, and 0.08kg-0.16kg of 5% phosphorus-tin master alloy to obtain the anti-oxidation agent based on yttrium-bismuth-phosphorus Tin plating solution; then perform hot tinning on the oxygen-free red copper strip at a speed of 80m / min.
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