1) shape of orifice ring
孔板体型
2) pass module
孔型模板
1.
Some factors frequently occurred to affect the precision in working roller pass module with linear cutting machine are stated as well as the countermeasures.
详细论述了利用线切割机加工轧辊孔型模板中易出现的几种影响加工精度的因素及消除方法,以达到提高模板精度。
3) pass template
孔型样板
1.
This paper introduced an automatic programming CAM system of section pass template, which was programmed by identifying screen picture.
介绍了以识别屏幕图形方式编程的“轧钢孔型样板全自动编程CAM系统”,它可与计算机辅助孔型设计结合,实现CAD/CAM一体化。
4) The seedling-growing tray made of paddy-straw
型孔板
5) Perforated Plate Header
孔板型封头
6) irregular holes
链板异型孔
1.
The technology of irregular holes punching determines its process, which uses common hydraulic press and composite step punching-die to realize precision punching and to resolve the problem of punching irregular holes on thick steel board.
基于链板的加工工艺性,确定了链板异型孔加工方法,利用普通压力机,针对链板加工要求设计了台阶式复合冲切模具,实际应用表明,达到了精密冲切效果,解决了厚板异型孔冲裁问题。
补充资料:孔板
安装在封闭管道中,按节流装置的原理,测量液体、气体和蒸汽流量的检出元件。标准孔板是一块具有圆形开孔的金属薄板,圆孔壁与孔板前端面成直角,安装时孔板轴心与管道轴线同心。孔板已有国际标准(ISO 5167)。测出孔板两端压差,按此标准即可算出具有一定精确度的流量值。孔板取压方式在国际标准中规定为径距取压、法兰取压和角接取压(取压孔紧靠孔板)3种(图1)。当测量含有少量固体的液体或含有少量液体的气体时,为便于少量固体或液体通过,孔板的开孔可制成扇形的,或制成与管道的轴线是偏心的(图2)。
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参考词条