18511545996​

球墨铸铁管订购热线:
新闻中心
  公司新闻 - 新闻零距离 资讯直通车 -

北京离心球墨铸铁管的主要应用及性能特点

作者: -1    发布时间: 2018-07-26    次浏览
北京离心球墨铸铁管已经取代普通铸铁管,目前多数见到在市政工程和在安装工程,供水、输气等管道。
Beijing centrifugal ductile iron pipe has replaced ordinary cast iron pipe, most of them are in municipal engineering and installation engineering, water supply, gas transmission and other pipelines.

北京离心球墨铸铁管是用离心铸造工艺生产的一种管材,材质为球墨铸铁。它被广泛应用于冶金、矿山、水利、石油和城市公用化建设的各种管道工程,可输送水、燃气等多种流体介质。它具有铁的本质,钢的性能,强度高、韧性好、耐腐蚀,是传统铸铁管和普通钢管的更新换代产品。另外,离心球墨铸铁管直线性好、表面光洁、尺寸准确、壁厚均匀、机械性能好、涂层粘附牢固,采用T型承插式柔性接口,胶圈密封,安装方便。
Beijing centrifugal ductile iron pipe is a kind of pipe material produced by centrifugal casting. Widely used in metallurgy, mining, water conservancy, petroleum and urban utilities and other kinds of pipeline construction, can transport water, gas and other fluid media. It has the nature of iron, the performance of steel, high strength, good toughness and corrosion resistance. In addition, the centrifugal ductile iron pipe linear good, smooth surface, size accurate, uniform thickness, good mechanical performance, coating adhesion, T socket type flexible interface, integrated seal, convenient installation.


北京离心球墨铸铁管


北京离心球墨铸铁管比普通铸铁管强度高。球墨铸铁和普通铸铁里都含有石墨单体,就是说铸铁是铁和石墨的混合体。普通铸铁中的石墨是片状存在的,石墨的强度很低,所以相当于铸铁中存在许多片状的空隙,所以普通铸铁强度比较低,较脆。石墨铸铁中的石墨是呈球状的,相当于铸铁中存在许多球状的空隙。球状空隙对铸铁强度的影响远比片状空隙小,所以球墨铸铁强度比普通铸铁强度高许多。强度高的球墨铸铁管自然更受欢迎。
The strength of Beijing centrifugal ductile iron pipe is higher than that of ordinary cast iron pipe. Both ductile and ordinary cast iron contain graphite monomers, which means that cast iron is a mixture of iron and graphite. Graphite in ordinary cast iron is laminated, and its strength is very low, so it is equivalent to many lamellar gaps in cast iron, so the strength of ordinary cast iron is relatively low and brittle. Graphite in graphite cast iron is spheroidal, equivalent to many globular voids in cast iron. The effect of spherical void on the strength of cast iron is much smaller than that of sheet iron, so the strength of ductile iron is much higher than that of ordinary cast iron. Ductile iron pipes of high strength are naturally more popular.

北京离心球墨铸铁管是目前国际上最通用的供水管材,亦可用于石油、电力、矿山和化工等领域。北京离心球墨铸铁管兼有普通灰铁管的耐腐蚀性和钢管的强度及韧性,其重量比同口径的灰铁管轻1/3——1/2,更接近钢管,但其耐腐蚀性却比钢管高出几倍甚至十几倍,因此在各种环境下,北京离心球墨铸铁管都不必做特殊防腐处理。北京离心球墨铸铁管的强度足以承受复杂的外部负荷,包括路面负荷,这一点是灰铁管、水泥管、玻璃管和塑料管等管材远所不及的。经过修磨的水泥内衬,粗糙度系数很低,对流体阻力小,这一点又完全可以与玻璃管和塑料管相媲美。

Beijing centrifugal ductile iron pipe is the most common water supply pipe in the world, and can also be used in petroleum, electric power, mining and chemical industry. Beijing centrifugal ductile iron pipe with ordinary gray iron corrosion resistance and the strength and toughness of steel tube, the weight lighter than with the diameter of the gray iron tube 1/3-1/2, closer to the pole, but its corrosion resistance is several times or even more than ten times higher than steel pipe, so in all kinds of environment, Beijing centrifugal ductile iron pipe don't have to do special anticorrosive processing. The strength of Beijing's centrifugal ductile iron pipe is strong enough to withstand complex external loads, including road loads, far greater than those of gray iron pipes, cement pipes, glass pipes and plastic pipes. The roughness coefficient of the polished cement lining is low and the resistance to fluid is low, which is comparable to that of glass tube and plastic tube.