Successfully carburize on a sample surface of alloy bar grate by plasma technology, making case carbon content more than 1.5% and depth of carburizing layers about 1 mm, improving the case hardness greatly.

• 利用等离子技术成功地在合金篦条试样表面渗碳；使表面w(C)达到1.；5%25以上；渗碳层深1mm左右；表面硬度大大提高。