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一、序言随着国民经济的高速发展,各种大、精、尖的疲劳试验机的研制与生产也越来越多。这为合理使用材料及测试零、部件在交变负荷下的使用寿命,提供了大量的科学的测试设备。这是材机战线上的可喜成果。但这并不是说疲劳试验机的研制与生产的品种与数量,已满足了国民经济飞跃发展的需要,而实际上还不能满足要求。就其产品的质量而言,仍然有很多
First, the preface With the rapid development of the national economy, a variety of large, refined, sharp fatigue testing machine research and production are also more and more. This provides a large number of scientific test equipment for the rational use of materials and test zero, parts life under alternating load. This is a gratifying result on the woodworking machine front. However, this does not mean that the varieties and quantities of the development and production of fatigue testing machines have met the needs of the rapid development of the national economy but can not actually meet the requirements. In terms of the quality of their products, there are still many