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浅析球墨铸铁管的优异的机械功用和外观质量

作者: -1    发布时间: 2018-07-26    次浏览
球墨铸铁管具有铁的本质、钢的性能,防腐性能优异、延展性能好,密封效果好,安装简易、主要球墨铸铁管用于市政、工矿企业给水、输气,输油等。是供水管材的首选,具有很高的性价比。与PE管材相比,从安装时间上,球墨管比PE管安装更简单快捷,且安装后内外承压力更好;从密闭性和防腐性上来看,球墨管安装后的密闭性更好,也可以通过多种防腐手段提高防腐蚀性能;从水力性能来看,因球墨铸铁管规格一般指内径,PE管规格一般指外径,因为同等规格条件下,球墨管能实现更大的径流量;从综合安装维护造价来看,球墨铸铁管有着更加优越的性价比。球墨铸铁管的主要成分有碳、硅、锰、硫、磷和镁。内壁喷锌,水泥沙浆防腐材料等。

The essence of the ductile iron pipes have iron, steel performance, corrosion performance, can good ductility, good sealing effect, easy to install, mainly ductile cast iron pipe used in municipal, industrial and mining enterprises, water supply, gas, oil, etc. It is the first choice of water supply pipe and has high cost performance. Compared with PE pipe, the installation time of ball ink pipe is simpler and faster than PE pipe, and the internal and external bearing pressure is better after installation. From the point of view of tightness and anticorrosion, the ductile ink pipe has better tightness after installation. In terms of hydraulic performance, because ductile iron pipe specifications generally refer to the inner diameter, PE pipe specifications generally refer to the outer diameter, because under the same specifications, ductile iron pipe can achieve greater runoff. According to the comprehensive installation and maintenance cost, ductile iron pipe has more superior cost performance. The main components of ductile iron pipes are carbon, silicon, manganese, sulfur, phosphorus and magnesium. The inner wall spray zinc, cement mortar antiseptic material and so on.


浅析球墨铸铁管的优异的机械功用和外观质量


球墨铸铁管是一种铁、碳、硅的合金,其间碳以球状游离情况存在,具有铁的本质,钢的功用,运用离心法铸造的球墨铸铁管,管径在DN100一DN2200之间,但由于DN≥->1200mm及DN≤400mm的球墨铸铁管,铸造难度大、相对代价高,况且大口径球墨铸铁管管壁簿,承、插口端简略变形,影响管道敷设,球墨铸铁管当时宜适用于DN400mm~1000mm之内.其管道具有以下明显的特征:
Ductile iron pipe is a kind of iron, carbon and silicon alloy, during which carbon in spherical free situation exists, has the nature of the iron and steel's function, use of centrifugal casting ductile iron pipes, pipe diameter, between a DN2200 DN100 but as a result of DN acuity and DN - > 1200 mm 400 mm or less ductile iron pipes, casting is difficult, relatively high cost, and large diameter ductile iron pipe wall book, bearing and deformation of the pin end a brief, pipe laying, ductile iron pipes was appropriate for DN400mm ~ 1000 mm. The pipe has the following obvious characteristics:

(1)球墨铸铁管可承受的内水压力可抵达3.0MPa,其延伸率、刚度、抗拉强度均较大;
(1) the internal water pressure of ductile iron pipe can reach 3.0mpa, and its elongation, rigidity and tensile strength are all large;

(2)管件规范彻底,能习气各种设备需要;
(2) complete specification of pipe fittings, able to meet the requirements of various equipment;

(3)球墨铸铁管接口一般选用承插口,系柔性接口,拆装便当,承受有些沉陷才干较强,可在管内有少量余水的情况下修补;
(3) the ductile iron pipe interface is generally made of socket socket socket, flexible joint, easy to disassemble and install, capable of bearing some subsidence, and can be repaired with a small amount of residual water in the pipe;

(4)球墨铸铁管一般外表防腐首要喷涂锌层,再喷沥青保护,其管壁内衬水泥砂浆,耐腐蚀才干强于钢管,但弱于非金属管道;
(4) the ductile iron pipe is generally antiseptic in appearance, with the first zinc coating sprayed on it and then protected by asphalt spraying. The pipe wall is lined with cement mortar.

(5)、一般有50年的运用寿数,比钢管的运用寿数长.球墨铸铁管在运用时一定要注意管道柔性接口处的防滑脱疑问.

(5) generally, the service life of the ductile iron pipe is 50 years, which is longer than that of the steel pipe.