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本文研制的新型ＺＳ２８合金，在４２％Ｐ２Ｏ５ １％ＨＦ，２％Ｈ２ＳＯ４， １０ｇ／１ＣａＳＯ４，温度为９０—９５℃的苛刻介质中，经１１５０—１２００℃固溶处理后．通过 实验室均匀腐蚀试验、现场挂片试验、晶间腐蚀试验、电化学性能及点蚀性能试验 结果表明，该合金在此苛刻的工况介质条件下，具有优异的耐蚀性能。由ＺＳ２８合 金制造的料浆泵叶轮、泵盖、搅拌浆叶、错气盘等零部件和整机的现场运转表明， 采用该合金制造生产设备是能够较好地满足复合磷肥生产流程对设备的腐蚀与磨蚀 的要求。
The new ZS28 alloy developed in this paper is treated by solution treatment at 1150-1200 ℃ in 42% P2O5 1% HF, 2% H2SO4, 10g / 1CaSO4 and harsh medium at 90-95 ℃. Through the laboratory uniform corrosion test, the coupons in the field, the intergranular corrosion test, the electrochemical performance and the pitting corrosion test results show that the alloy has excellent corrosion resistance under the severe working conditions. ZS28 alloy slurry pump impeller, pump cover, mixing blades, misframed disk and other parts of the machine and the field operation shows that the use of the alloy manufacturing equipment is able to better meet the complex phosphate fertilizer production processes on the equipment Corrosion and abrasion requirements.