冶金行业
冶金行业专用制氮机适用于热处理、光亮退火、保护加热、粉末冶金、铜材铝材加工、磁性材料烧结、贵金属加工、轴承生产等领域。具有纯度高、连续生产、部分工艺要求氮气含一定量的氢以增加光亮度等特点。
Metallurgical industry
The special nitrogen generator for metallurgical industry is suitable for heat treatment, bright annealing, protective heating, powder metallurgy, copper and aluminum processing, magnetic material sintering, precious metal processing, bearing production and other fields. It has the characteristics of high purity, continuous production, and some processes require nitrogen to contain a certain amount of hydrogen to increase the brightness.
在铁精粉还原过程所采用的保护性气氛气体通常为纯氮气和氢气加氮气。氮气用于吹促炉膛,氢氮气用于还原铁粉。一般氮气的纯度在99.99%以上。
另外,在磁性材料的出料的排废时,高纯氮气作为防止氢气与空气混合发生爆炸的保护性气体得到了广泛的应用,通常要求采用的氮气纯度在99.9995%以上,氮气常压露点在-60℃左右,氢含量有低氢要求,一般在5×10-6以下。
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