Pump cover material with steel ZG230-450 more, can also be used ductile iron, the latter two materials contrast of wear resistance and hardness and heat resistance to be because the former.
泵体、泵盖的材质采用铸钢ZG230-450的较多，也可以采用球墨铸铁材质，两种材质对比后者的耐磨性和硬度以及耐温性要因为前者。
Pump motor in the loss of shielding, the stator shield sets great loss, in some cases, iron loss of 2 to 3 times the shield repair kits after the loss should be maintained at the same level.
在屏蔽泵电机的损耗中，定子屏蔽套损耗很大，有时达到铁损耗的2~3倍，修复后的屏蔽套损耗应维持在原有水平。
Chemical composition, melting processes, casting and heat treatment of high chromium cast iron were determined according to the requirement of materials for dredge pump cover.
在分析杂质泵护套材质要求的基础上，确定了高铬铸铁的化学成分和熔炼、铸造及热处理工艺。
Thus transport of sulfuric acid pump usually high silicon cast iron (casting and processing is very difficult), high-alloy stainless steel (alloy No. 20) to create.
因此输送硫酸的泵阀通常采用高硅铸铁（铸造及加工难度大）、高合金不锈钢（20号合金）制造。
At the end of the pump valves, cast iron pipe and other items to be rusty rust, and then coated with butter, dry place on the preservation, re-use for winter and spring.
水泵的底阀、弯管等铸铁件，生了锈的要除锈，然后再涂上黄油，放在干燥处保存，以备冬春再用。
According to the maximum pressure to bear, pump body and cover can be made of grey cast iron (1.6mpa), spheroidal graphite cast iron (2.0mpa) or cast steel (2.5mpa, including stainless steel).
根据泵承受的最大压力，泵体和泵盖材质采用灰口铸铁(1.6Mpa)、球墨铸铁(2.0 mpa)、铸钢(2.5 Mpa，包括不锈钢)。
According to the maximum pressure to bear, pump body and cover can be made of grey cast iron (1.6mpa), spheroidal graphite cast iron (2.0mpa) or cast steel (2.5mpa, including stainless steel).
根据泵承受的最大压力，泵体和泵盖材质采用灰口铸铁(1.6Mpa)、球墨铸铁(2.0 mpa)、铸钢(2.5 Mpa，包括不锈钢)。
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