1979年元月16～19日由第一砂轮厂、东北工学院、郑州磨料磨具磨削研究所在沈阳第一砂轮厂共同召开了有磨料行业及一机、冶金系统有关科研、设计、高等院校等29个单位57名代表参加的概率筛分机鉴定会。概率筛,也叫摩根森筛,七十年代各先进工业国家已广泛采用。我国第一台概率筛是从1977年8月起由沈阳第一砂轮厂和东北工学院开始共同研制的。经过一年多的努力,解决了在结构方面的自同步振动、噪音、筛网的张紧、弹性振动等问题。次年,在一机部郑州磨料所的参加下,对该筛机进行了筛网层数、筛孔大小、倾角及给料料流量等工艺参数的试验,并将新筛机联于碳化硅破碎制粒工序及成品工序 January 1979 January 16 to 19 by the first wheel factory, Northeast Institute of Technology, Zhengzhou Institute of Abrasives grinding in Shenyang First Wheel Factory jointly held an abrasive industry and a machine, metallurgical systems related to scientific research, design, higher 57 institutions such as institutions 29 representatives to participate in the probability of screening appraisal meeting. Probability screen, also known as Morgenson sieve, the seventies advanced industrial countries have been widely used. China’s first probability screen is from 1977 August from Shenyang First Wheel Factory and Northeast Institute of Technology jointly developed. After more than a year of hard work, it solved the problems of self-synchronous vibration in structure, noise, tensioning of screen, elastic vibration and so on. The following year, with the participation of a machine department of Zhengzhou Abrasives, the sieve machine was sieved, sieve size, angle and feed material flow rate and other process parameters of the test, and the new screen machine in silicon carbide Broken granulation process and finished product process