论文部分内容阅读
一个时期以来,德国宝马汽车公司与四家合作伙伴(即科尔本施密特活塞制造公司、弗拉伊柏尔格有色金属公司以及柯劳斯塔和谢姆尼茨理工大学)一直在从事一种新型纤维增强镁合金活塞的研制开发,并取得阶段性成果.据称,此种新活塞与传统镁合金活塞相比,质量减轻约1/4,技术性能更优越,可给发动机带来“节能、排放少、噪声低”的效果.新型活塞开发联合体以在250℃高温下具有良好性能稳定性和足够耐热强度的普通镁合金材料为基础而开发出AS41型矩阵合金和AZ91型变型合金作为新型活塞的基体材料.在制造成品活塞工件之前,先用碳纤维材料制出模型坯件,它有点象海
For some time now, BMW AG of Germany and four partners (ie Kolbenschmidt piston manufacturing company, Flaugelberg Nonferrous Metals, and Klaussta and the University of Schemlitz) have been engaged in one Research and development of new type of fiber reinforced magnesium alloy piston, and achieved phased results.It is said that the new piston compared with the traditional magnesium alloy piston, reducing the quality of about 1/4, better technical performance, can give the engine a “ Low energy consumption, low emissions and low noise. ”The new Piston Development Consortium developed AS41 matrix alloys and AZ91-type variants based on common magnesium alloy materials with good performance stability and sufficient heat resistance at a high temperature of 250 ° C Alloy as a new type of piston base material in the production of finished piston workpiece, the first use of carbon fiber material to make the model blanks, it is a bit like the sea