钢中氢含量对金属的性能有很大影响,因此,准确地控制氢含量非常重要。已开发了许多种取样器,但是,取样过程本身和分析时间较长都造成了氢分析的误差。为了克服上述缺点,法国联合金属公司Gandrange厂研制了一个直接测量钢中氢含量的分析系统。该系统的原理为通过钢水的氮气在钢水中起泡,钢水中的氢向气泡中扩散,使熔池中的氢分压和气体之间建立平衡,此吋,用热导探测器测出稳 The hydrogen content in the steel has a great influence on the properties of the metal, so it is very important to control the hydrogen content accurately. Many samplers have been developed, however, the sampling process itself and the long analysis time have caused errors in hydrogen analysis. To overcome these shortcomings, Gandrange, a French company, has developed an analytical system that directly measures the hydrogen content in the steel. The principle of the system is that the nitrogen in the molten steel bubbles in the molten steel and the hydrogen in the molten steel diffuses into the bubbles so that the hydrogen partial pressure in the molten pool is balanced with the gas. In this case, the thermal conductivity detector measures the stable