用于建筑施工混凝土浇注的一种体积小、重量轻、振幅合理的新产品——ZN-42型插入式振动器,最近通过技术鉴定。该产品是由沈阳工程机械厂研制生产的、具有国际先进水平的产品。于1990年试制成功并生产出样机,先后在全国重点工程——沈阳北新客站等大型建设工程中使用。结果表明, A new product, the ZN-42 plug-in vibrator, is a new product with small size, light weight, and reasonable amplitude that is used for pouring concrete in construction. It has recently passed technical appraisal. This product is a product developed and manufactured by Shenyang Construction Machinery Factory and has international advanced level. In 1990, the prototype was successfully produced and prototypes were produced, which were used in large-scale construction projects such as Shenyang Beixin Passenger Station. The results show,