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20 0 2年 2月 2 0日 ,中华人民共和国国家知识产权局向湖南省顶立新材料工程中心颁发专利号为ＺＬ0 12 34997.6真空烧结炉专利证书。目前 ,在生产及科研上使用的硬质合金真空烧结炉为间歇式、无快冷装置 ;其冷却时间长、效率低。顶立新材料工程中心针对这一情况 ,率先在真空烧
On February 20, 2002, the State Intellectual Property Office of the People’s Republic of China issued a patent certificate of ZL0 12 34997.6 for vacuum sintering furnace to the top legislature of new materials engineering in Hunan Province. At present, the cemented carbide vacuum sintering furnace used in the production and scientific research is a batch type, no quick-cooling device; the cooling time is long and the efficiency is low. Top New Materials Engineering Center in response to this situation, the first in a vacuum burn