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关于球墨铸铁井盖的知识你了解多少?

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关于球墨铸铁井盖的知识你了解多少?

发布日期:2018-03-20 作者:贵州铸造 点击:

球墨铸铁井盖主要由球墨铸铁打造出来的井盖,这种井盖质量的好坏就牵扯到了球化率的问题。处理铸件的常用涂料就是防锈沥青漆了,当然球墨铸铁井盖的表面也是经过喷涂防锈沥青漆处理的。球墨铸铁井盖有一个优点,就是由于球墨铸铁强度高、韧性好,使得球墨铸井盖要比同类型的灰口铸铁井盖轻30%左右,贵州铸造告诉大家市面上所说的铸铁井盖指的就是球墨铸铁井盖。

The cover of spheroidal graphite cast iron is mainly made of spheroidal graphite cast iron. The quality of this kind of well cover is involved in the problem of the rate of spheroidization. The commonly used coatings for castings are anticorrosive asphalt lacquer, and of course the surface of the ductile iron cover is also treated by spraying antirust bitumen lacquer. The advantage of ductile iron well covers is that the strength of ductile iron covers is about 30% lighter than that of the same type of gray iron covers because of the high ductility and toughness of ductile iron. Guizhou foundry tells you that the cast iron manhole covers on the market refer to the ductile iron manhole covers.

贵州铸造

特点

Characteristic

韧性好:冲击值与中碳钢材详尽,是灰铁材料的10倍以上。

Good toughness and impact value: carbon steel in detail, is more than 10 times the iron material.

抗腐蚀性强:喷水腐蚀试验,九十天的腐蚀量仅为钢管的1/40,是灰铁管的1/10。使用寿命是灰铁管的2倍,是普通钢管的5倍。

Strong corrosion resistance: water spray corrosion test, ninety days of corrosion is only 1/40 of steel pipe, is the 1/10 of the ash iron pipe. The service life is 2 times that of the gray iron pipe and 5 times that of the ordinary steel pipe.

塑性好:延伸率≥7%,与高碳钢材相近,而灰铁材料延伸率为零。

Good plasticity: elongation rate greater than 7%, similar to high carbon steel, and iron material extension rate is zero.

强度高:抗拉强度ób≥420MPa,屈服强度ós≥300MPa,与低碳钢材相同,是灰铁材料的三倍。

High strength: tensile strength, yield strength, B = 420MPa, s = 300MPa, with the same low carbon steel, is three times the iron material.

铸铁井盖广泛用于市政道路,高速公路,通信,电力,自来水,小区,学校等各种园区。

Cast iron shaft covers are widely used in municipal roads, expressway, communications, electricity, tap water, residential areas, schools and other parks.

铸铁井盖一般分圆形和方形,铸铁井盖规格尺寸:重型400KN,普型250KN,轻型125KN,方型:500*500  600*600  700*700 450*750等  圆型:600 700 800 900 1000等, 每种规格的重量分很多种,导致承重有所不同。

Cast iron manhole covers generally round and square, cast iron manhole cover size: heavy 400KN, general 250KN, 125KN light, 500*500 600*600 700*700 450*750: a square round type: 6007008009001000, the weight of each specification is divided into many kinds, resulting in different bearing.


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