Iron bronze composite powder and preparation method thereof
A technology of iron bronze and composite powder, applied in metal material coating process, coating and other directions, can solve the problems of poor internal metal bonding strength, uneven distribution, low compressive strength, etc., to achieve excellent product quality and performance, reduce impurities The effect of content and excellent performance
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[0022] Example 1: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: first dissolve stannous sulfate and copper sulfate in deionized exchange water at room temperature, then mix, adjust the pH value of the above mixed solution with sulfuric acid to 0.5, and then add excess reduced iron powder under stirring A chemical replacement reaction is performed; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=1.8:35.4:100 by weight. After stirring the reaction for 1 minute, the stirring was stopped and the reaction product was allowed to settle for 1 minute. After the clear liquid was removed, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried. The drying temperature was 80°C, the drying time is 60 minute...
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[0023] Example 2: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: firstly dissolve copper sulfate and stannous sulfate in deionized exchange water at room temperature, then mix, adjust the pH of the above mixed solution with sulfuric acid to 1.5, and then add excess reduced iron powder under stirring A chemical replacement reaction is performed; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=3.7:70.7:100 by weight. After stirring for 2.4 minutes, the stirring was stopped and the reaction product was allowed to settle for 5 minutes. After the clear liquid was removed, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried at a drying temperature of 95°C, the drying time is 60 minutes, and finally...
Example Embodiment
[0024]Example 3: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: first dissolve copper sulfate and stannous sulfate in deionized exchange water at room temperature, then mix, adjust the pH value of the above mixed solution with sulfuric acid to 2.0, and then add excess reduced iron powder under stirring Chemical replacement reaction is carried out; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=3.7:74.6:100 by weight. After stirring for 3.8 minutes, the stirring was stopped and the reaction product was allowed to settle for 5.6 minutes. After removing the clear liquid, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried at a drying temperature of 88°C, the drying time is 108 minutes, and fina...
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