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江西江西k9球墨铸铁管操控好水冷金属型离心机冶炼工艺参数

   来源：山西飞翔铸业有限公司

1、 Optimize process parameters and reduce tube weight
Reasonably control the pouring temperature and the inlet and outlet temperatures of the cooling water of the fuselage to shorten the interval between two pouring. The inlet temperature of the cooling water of the control fuselage is 28-36 ℃, and the outlet temperature is 50-57 ℃.
2、 Control the addition of raw materials to reduce slag inclusion defects

k9球墨铸铁管 k8球墨铸铁管 k7球墨铸铁管 球墨铸铁管厂家 球墨铸铁管厂 球墨管厂家 k9球墨管 k8球墨管 k7球墨管 球墨铸铁管管件


In order to reduce the sulfur content in molten iron and reduce the occurrence of sulfide, w (s) should be controlled < 0.02%; Properly increasing the casting temperature is beneficial to the floating of slag inclusion; The content of rare earth in the spheroidizing agent is not easy to be too high, and the content of rare earth should be controlled at 1-2%; Strengthen the slag raking and slag retaining function of molten iron; The flow rate of residual magnesium in the molten iron is not easy to be too high (controlled at 0.035-0.045%), so as to reduce the external oxidation of the molten iron.
3、 Improve centrifugal equipment to prevent cracks

k9球墨铸铁管改进离心设备，有用防备裂纹

削减铁液在高温的停留时间，加强孕育特别是随流孕育作用。随流孕育剂加入量操控为铁液量的0.1-0.25%;确保管模粉散布均匀，操控管模内外表用量为20-30g/m2。k9球墨铸铁管操控好水冷金属型离心机冶炼工艺参数。



Reduce the residence time of molten iron at high temperature, and strengthen the inoculation, especially the following flow inoculation. The amount of inoculant added with the flow is controlled to be 0.1-0.25% of the amount of molten iron; Make sure that the tube mold powder is evenly distributed, and control the inner and outer surface of the tube mold to use 20-30g / m2. Control the smelting process parameters of the water-cooled metal mold centrifuge.
上一篇： k9球墨铸铁管生产加工为解决降低铁液中的含硫量 下一篇：k8球墨铸铁管​的可扩展性

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