Insulator for electrified railway catenary

一种电气化铁路接触网用绝缘子

Abstract

The invention discloses an insulator for electrified railway catenary. The insulator comprises an insulator body, an insulator umbrella sheath arranged outside the insulator body, and hardware fittings arranged at two ends of the insulator body, wherein the insulator body is coated with semiconductor glaze; the semiconductor glaze comprises the constituents of a Sn-Sb solid solution, white glaze base stock and zinc oxide, wherein the adding mass of the Sn-Sb solid solution and the adding mass of the zinc oxide are respectively 20-25% and 3-5% of the mass of the white glaze base stock, moreover, the white glaze base stock is composed of the following constituents in parts by weight: 30-35 parts of albite, 8-15 parts of calcined talcum powder, 20-25 parts of quartz, 8-10 parts of Xinhui powder, 10-15 parts of kaolin, 4-5 parts of limestone, 3-8 parts of Shangdian earth, 0.5-1 part of titanium white, 5-10 parts of Zuoyun earth, 1-3 parts of zirconium silicate and 5-10 parts of calcined clay. For the insulator prepared according to the formulae of the insulator umbrella sheath and the semiconductor glaze provided by the invention, the mechanical property is enhanced remarkably, and the insulator stain resistance is improved greatly.
本发明公开了一种电气化铁路接触网用绝缘子,包括绝缘子本体、设置在绝缘子办呢提外部的绝缘伞群护套和设置在绝缘子本体两端的金具附件,所述的绝缘子本体上涂敷有半导体釉,所述的半导体釉包括以下组分:锡锑固溶体、白釉基料和氧化锌,其中,所述的锡锑固溶体和氧化锌的加入质量分别为白釉基料质量的20-25%和3-5%,且所述的白釉基料包括以下组分且各组分的重量份数为:纳长石30-35份;煅烧后的滑石粉8-15份;石英20-25份;新会粉8-10份;高岭土10-15份;石灰石4-5份;上店土3-8份;钛白0.5-1份;左云土5-10份;硅酸锆1-3份;煅烧粘土5-10份。利用本发明所述的绝缘伞群护套和半导体釉的配方制备得到的绝缘子,机械性能显著增强,且大幅提高了绝缘子的耐污性能。

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