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一、前言液压件等基础产品水平既代表国家工业水平,又是制约机械、汽车工业发展的重要因素。近十多年来,我国液压工业通过引进、消化,产品质量有所提高,但与先进国家比落后约30年,且差距还在拉大。作为液压件的主要毛坯——铸件质量直接影响液压件质量,铸件质量差已拖了液压行业后腿。要从根本上解决液压件质量问题,提高可靠性、寿命等,必须明确铸造技术是基础的基础。要依靠科技进步,对液压铸件的科研与生产加强投
I. Introduction The level of basic products such as hydraulic components not only represents the national industrial level, but also is an important factor restricting the development of machinery and automobile industry. In the past decade or so, China’s hydraulic industry has improved its product quality through introduction and digestion. However, it has fallen behind the advanced countries for about 30 years, and the gap is still widening. As the main part of the hydraulic parts - the quality of the casting directly affects the quality of the hydraulic parts. The poor casting quality has dragged the hydraulic industry behind. To fundamentally solve the quality problems of hydraulic parts and improve reliability, life, etc., it must be clear that casting technology is the foundation of the foundation. Rely on advances in science and technology, and strengthen investment in scientific research and production of hydraulic castings