It was suggested that the technical process of ironmaking without slag hole in BF should be extended.
建议高炉推广无渣口冶炼的工艺流程。
Quick-open hand hole is set at lower part of the concentrator to clear residual liquid and slag inside the concentrator.
在浓缩罐下部设置了快开式手孔，以使清理罐内残液，残渣；
By using this process to repair castings, there is no obvious separating line, no slag inclusion and gas hole between the welding zone and base metal.
用此工艺焊补铸件，焊补区域与基体间没有明显的熔合线，无渣孔、气孔等缺陷。
A slag discharging hole is arranged on the upper side of the cylinder.
在圆柱筒上一侧设有一排渣口。
The hole size depends on the fluidity of slag phase in pellet and its filling condition to the hole in pellet. The amount and shape of iron phase depend on the reduction degree of pellet.
球团孔隙的大小取决于脉石所形成的渣相的流动性和渣对孔隙的充填状态：铁相的数量及形态则取决于球团的还原程度。
The tool can objectively measure the thickness of sinking slag on the hole bottom of the bored pile without the need of the subjective determination of engineers based on experience and hand feeling.
本发明可以对钻孔桩孔底沉渣厚度进行客观的测量判断，而不需靠工程师的经验和手感进行主观判断。
The invention also provides a method for measuring the thickness of sinking slag on the hole bottom of the bored pile.
本发明还提供一种钻孔桩孔底沉渣厚度测量方法。
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
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