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钢辊外卷式圆捆打捆机设计与试验（Design and Experiment on Round Baler with Revolute Steel Roller）
圆捆打捆机 钢辊外卷式 设计 试验
2010/12/29
设计了由传动系统、牵引装置、捡拾器、喂入机构、成捆室、捆绳机构、液压系统以及卸草器等组成的钢辊外卷式圆捆打捆机，简述了圆捆打捆机的工作原理以及关键部件的结构设计等。对圆捆打捆机的运动参数进行了设计计算，对喂入机构的运动轨迹进行了描述，分析了螺线型成捆室的特点。为检验圆捆打捆机的可靠性和适应性，在不同的作业环境和条件下进行了性能试验和生产考核，结果证明该机结构能够适应各种不同的作业环境。
Influence of heat exposition on the transition behaviour of the steel 21MnTiB
steel impact energy transition curve
2014/2/26
Owing to operations the construction materials change their properties. The material properties and characteristics are considered as the most important. One of properties is the toughness of the used...
Influence of heat treatment on mechanical properties of steel
heat treatment strength toughness
2014/2/28
This article concerns an influence of heat treatment on strength and toughness of steel. The partial results of tests on steel 12 042 are presented.