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球墨铸铁与球墨铸铁管件的基本特点

作者: -1    发布时间: 2018-07-26    次浏览
球墨铸铁与球墨铸铁管件的基本特点之一球墨铸铁管件的性能指标
Ductile iron and ductile iron pipe fittings one of the basic characteristics of ductile iron pipe fittings performance indicators

(1)最小抗拉强度:420MPa;
(1) minimum tensile strength: 420MPa;

(2)最小屈服强度:300MPa;
(2) minimum yield strength: 300MPa;

(3)最小伸长率:7%;(相当于我国QT450-10、GB/T13295、ISO2531。)
(3) minimum elongation: 7%; (equivalent to China's qt450-10, GB/T13295, ISO2531.)

(4)口径:DN80~DN2600。
(4) caliber: DN80 ~ DN2600

球墨铸铁与球墨铸铁管件的基本特点之二球墨铸铁管及管件的功能
The function of ductile iron pipe and pipe fittings

(1)防止爆管;
(1) prevent pipe explosion;
(2)小口径大流量;
(2) small-bore large flow;

球墨铸铁与球墨铸铁管件的基本特点之三球墨铸铁管常用生产工艺
The basic characteristics of ductile iron and ductile iron pipe fittings the common production process of ductile iron pipe

(1)水冷金属型离心铸造
(1) water-cooled metal centrifugal casting

(2)树脂砂衬离心铸造
(2) centrifugal casting of resin sand lining

(3)热模法离心铸造
(3) centrifugal casting by hot mould method

球墨铸铁与球墨铸铁管件的基本特点之四球墨铸铁管件常用生产工艺
The basic characteristics of ductile iron and ductile iron pipe fittings the common production process of ductile iron pipe fittings

(1)黏土砂铸造工艺;
(1) clay sand casting process

(2)覆膜砂铸造工艺;
(2) film-covered sand casting process

(3)树脂砂铸造工艺;
(3) resin sand casting process

(4)水玻璃砂铸造工艺(水玻璃工艺因为水玻璃砂残留强度高,不易清理,现逐步淘汰该工艺在铸铁管件上的应用);
(4) water-glass sand casting process (the water-glass process, because of the high residual strength of water-glass sand, is not easy to clean up, and its application in cast iron pipe fittings is being phased out)

(5)消失模铸造工艺;
(5) epc process

(6)V法铸造工艺;
(6) V casting process
球墨铸铁与球墨铸铁管件的基本特点之五球墨铸铁管件常用生产工艺适用管件管径
Ductile iron and ductile iron pipe fittings basic characteristics of ductile iron and ductile iron pipe fittings commonly used production process applicable to pipe fittings pipe diameters

(1)黏土砂铸造工艺(DN80-DN300);
(1) clay sand casting process (dn80-dn300);

(2)覆膜砂铸造工艺(DN80-DN200);
(2) film-covered sand casting process (dn80-dn200);

(3)树脂砂铸造工艺(DN80-DN2600);
(3) resin sand casting process (dn80-dn2600);

(4)消失模铸造工艺(DN400-DN1200);
(4) epc process (dn400-dn1200);

(5)V法铸造工艺(DN80-DN2600);
(5) V casting process (dn80-dn2600);