Preparation method of iron bronze composite powder
A technology of composite powder and iron bronze, which is applied in the direction of coating, metal material coating process, etc., can solve the problems of poor internal metal bonding strength, low compressive strength, uneven distribution, etc., and achieve excellent product quality and performance, and low manufacturing cost. The effect of reducing and reducing the content of impurities
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Embodiment 1
[0022] Embodiment 1: A kind of iron bronze composite powder, its component content is shown in Table 1. The preparation method is as follows: firstly, dissolving stannous sulfate and copper sulfate in deionized water at normal temperature, then mixing them, adjusting the pH value of the above mixed solution to 0.5 with sulfuric acid, and then adding excess reduced iron powder under stirring A chemical replacement reaction is carried out; wherein, the added 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 for 1 minute, stop stirring, allow the reaction product to settle for 1 minute, remove the clear liquid, and repeatedly wash the obtained solid reaction product with deionized water until the pH value of the washing water is 7, dehydrate and vacuum-dry, the drying temperature is 80°C, the drying time is 60 minutes, and finally the dried...
Embodiment 2
[0023] Embodiment 2: A kind of iron bronze composite powder, its component content is shown in Table 1. The preparation method is as follows: firstly, copper sulfate and stannous sulfate are respectively dissolved in deionized water at room temperature, and then mixed, and the pH value of the above mixed solution is adjusted to 1.5 with sulfuric acid, and then excessive reduced iron powder is added under stirring A chemical replacement reaction is carried out; wherein, the added 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 2.4 minutes of stirring reaction, stop stirring, allow the reaction product to settle for 5 minutes, remove the clear liquid, and repeatedly wash the obtained solid reaction product with deionized water until the pH value of the washing water is 7, dehydrate and vacuum dry, and the drying temperature is 95°C, the drying ti...
Embodiment 3
[0024]Embodiment 3: A kind of iron bronze composite powder, its component content is shown in Table 1. The preparation method is as follows: firstly, copper sulfate and stannous sulfate are respectively dissolved in deionized water at normal temperature, and then mixed, and the pH value of the above mixed solution is adjusted to 2.0 with sulfuric acid, and then excessive reduced iron powder is added under stirring A chemical replacement reaction is carried out; wherein, the added 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 3.8 minutes of stirring reaction, the stirring was stopped, and the reaction product was allowed to settle for 5.6 minutes. After the clear liquid was removed, the solid reaction product was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum-dried, and the drying tem...
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