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
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.
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) the internal water pressure of ductile iron pipe can reach 3.0mpa, and its elongation, rigidity and tensile strength are all large;
(2) complete specification of pipe fittings, able to meet the requirements of various equipment;
(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;