The invention provides a preparation method of a railway pantograph slide plate. The preparation method of the railway pantograph slide plate is characterized by comprising the following steps of preparing subsphaeroidal iron-based framework powder, proportioning, mixing the powder, pressurizing, sintering, cooling and demolding. The preparation method of the subsphaeroidal iron-based framework powder comprises the steps of material preparation, smelting, tundish preheating, atomization and powder collection. According to the railway pantograph slide plate prepared by the preparation method provided by the invention, the density ranges from 8.0 to 8.2 g/cm < 3 >, and the Brinell hardness (HB) is less than or equal to 85; the resistivity is less than or equal to 30 [mu]omega.m; the tensilestrength is greater than 1.5 Mpa; the impact toughness is greater than 69 Kj.m < 2 >; and the railway pantograph slide plate has the advantages that under the condition of excellent conductivity, thefriction force of the slide plate is effectively reduced, the abrasion of a connecting circuit is reduced, and the application requirements of the railway pantograph slide plate can be met.
本发明提供一种铁路受电弓滑板的制备方法,其特征在于,包括近球形铁基骨架粉末的制备、配料、混粉、加压、烧结、冷却脱模。所述近球形铁基骨架粉末的制备包括备料、熔炼、中间包预热、雾化、收粉。采用本发明的制备方法制成的铁路受电弓滑板,密度在8.0‑8.2g/cm3,布氏硬度(HB)≤85;电阻率≤30μΩ.m;抗拉强度>1.5Mpa;冲击韧性>69Kj.m2;所述铁路受电弓滑板,在具备优良导电性的情况下,有效降低滑板摩擦力,降低连接电路的磨损,能够满足铁路受电弓滑板的应用要求。
Preparation method of railway pantograph slide plate
一种铁路受电弓滑板的制备方法
2021-02-02
Patent
Electronic Resource
Chinese
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