受河北省科委的委托,由我院和丰润铸造厂共同研制的“薄壁高韧性球墨铸铁213排气岐管的研制”于1992年9月2日在唐山通过技术鉴定。来自能源部、中美合资北京吉普汽车有限公司、河北省机电厅、天津汽车公司、北京工业大学等单位的60余名专家、教授参加了鉴定会。该项科研是由我院材料系铸造教研室的钱立教授、丰润铸造厂的张显忠、马庆仓共同研制的。鉴定委员会经过认真审核技术文件一致认为: 1.球铁排气岐管的性能达到和超过了 Commissioned by Hebei Science and Technology Commission, jointly developed by our hospital and Fengrun foundry “thin-walled high toughness ductile iron 213 exhaust manifold development” in September 2, 1992 in Tangshan passed technical appraisal. More than 60 experts and professors from the Ministry of Energy, Sino-U.S. Beijing Jeep Co., Ltd., Hebei Electrical and Mechanical Department, Tianjin Automobile Co., Ltd. and Beijing University of Technology participated in the appraisal meeting. The research is funded by the Department of Materials Building Materials Department of Professor Qian Li, Fengrun foundry Zhang Xianzhong, Ma Qing warehouse jointly developed. Accreditation Committee after careful review of technical documents agreed that: 1. ductile exhaust manifold performance reached and exceeded