关键词: 发动机进气歧管；塑料；成型工艺；发展现状及趋势

Abstract: Compared with the traditional aluminum alloy engine intake manifold, the plastic engine intake manifold is not only greatly reduced in weight, but also significantly improved in engine dynamic performance and manufacturing costs. However, as a key component of engine intake system, the engine intake manifold has high requirements on material selection and processing craft due to its complex structure. This paper mainly explores the state-of-the-art development status and prospect of plastic engine intake manifold on its material and technological process processing craft in the world, aiming at predicting the development direction of plastic engine intake manifold in the future, promoting independent research in domestic, and mastering its core technology of production and processing, so as to accelerate the progress of domestic plastic engine intake manifold. in order to supply referring information for the profession personnel.

Key words: Engine intake manifold; Plastics; Processing craft; Development status and prospect