本实用新型不仅确保气割圆的质量提高气割的工作效率，而且降低成本适应于现场。
The utility model not only ensures the quality of the gas cutting compasses and improves the working efficiency of gas cutting, but also reduces the cost and ADAPTS to the working site.
因此，切割氧的纯度、流量、流速和氧流形状对气割质量和切割速度有重要的影响。
Therefore, cutting the purity of oxygen, volume, velocity, and oxygen flow shape on the gas cutting quality and cutting speed has important implications.
讨论了石墨的物理性能，分析了片状和球状石墨聚集状态对铸铁气割性的影响。
The influence of flake and spheroidal graphite on oxyacetylene cutting characteristic of cast iron has been analysed.
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