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发明公开
CN108953381A 叶轮轴套及其制造方法 无效 - 驳回

叶轮轴套及其制造方法
摘要：
本发明提供一种叶轮轴套及其制造方法，有本体、过渡部和凸起部，设置凹陷和凹槽，可以很好的符合叶轮的注塑工艺，配方为ZnSt：0.2‑0.8%、Ni:0.2‑1.5%、Mo:0.2‑1.5%、不锈钢粉余量，可以很好的达到密度和硬度的标准，制造方法为混粉‑压制‑烧结‑磨通孔‑检测‑包装，工艺成熟，提高了工作效率，制得的叶轮轴套性能好，采用粉末冶金工艺，制造方法成熟高效，不易磁化，提高产品准确率，无切削，成本低廉，很好的适应生产。
摘要（英）：

The invention provides an impeller shaft sleeve and a manufacturing method thereof. The shaft sleeve comprises a body, a transition part and a protruding part; a sinking part and a groove are arranged, the impeller injection molding process can be better achieved, and according to the formula, 0.2 to 0.8% of ZnSt, 0.2 to 1.5% of Ni, 0.2 to 1.5% of Mo and the balance stainless steel powder are included; the density and hardness standards can be better achieved, and the manufacturing method comprises the steps of powder mixing, pressing, sintering, through hole grinding, detecting and packaging.The process is mature, work efficiency is improved, the manufactured impeller shaft sleeve is good in property, the powder metallurgy process is adopted, the manufacturing method is mature and efficient, magnetization is not prone to happening, product accuracy is improved, cutting is avoided, cost is low, and the method can well adapt to the production.

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