sheet-metal screw

It is significant to study its basic theory because Screw Die has advantaged superiority in producing wide and thick rubber sheet.

由于螺杆分配机头在生产宽幅厚胶板时有得天独厚的优势，故对螺杆分配机头展开理论研究是一项非常有意义的工作。

This shear equipment and the sheet die were successively linked to forepart of the single-screw extruder.

可控剪切专用装置和片材成型口模依次联接在挤出机前端.

using a sheet metal screw for your ground is not the best approach.

使用金属螺丝到地接不是最好的方法。

A circular hoop sheet is punched with a spiral line, and one end of the spiral line penetrates through the connecting piece to contact a bottom plate to engage with the screw.

圆形箍片冲制有螺线一端穿过连接件贴靠在底平面并与螺钉相啮合。

Introduce process calculation, process flow sheet, equipment erection and effect of production application of screw plate heat exchanger used in ammonium chloride production in double decomposition reaction production of potassium nitride and ammonium chloride process.

介绍复分解法生产硝酸钾与氯化铵工艺中，螺旋板换热器应用于氯化铵生产的工艺计算，工艺流程，设备安装及生产应用效果。