doctor frame,doctor holder

The rheology behaviour of sol in the scraper smearing is analysed with computer.

运用计算机对刮刀涂覆过程中的溶胶流变行为进行计算分析，说明了刮刀与布基之间的溶胶流动速度及压力分布情况和分离力与刀位、布基移动速度等工艺因素相互关系，对刮刀涂覆成型工艺的调试有指导意义。

This Paper analyses the scraping principle and mechanical charater for the centrifugal scraper of an ice cream freezer, deduces theoretical formula of the minmal rotation speed meeting contact scraper of agitator.

本文对冰淇淋凝冻机中离心式浮动刮刀的刮削机理及力学特性进行了分析，推导出搅拌器满足接触式刮削的最小转速的理论公式。

In the paper,the working principles of the cutting tools are analyzed,the wearing of the cutting tools during the shield boring is investigated,analysis and study are made on the features of and causes for the wearing of the disc cutters and scrapers,the reasons for the wearing are summarized and some recommendations are made.

在对刀具切削原理的分析和盾构掘进中的刀具磨损情况进行了现场调查的基础上,对滚刀和刮刀的磨损特点及原因进行了分析和研究,指出了磨损的主要原因,最后提出了合理的建议和意见。

The blade coater is an important equipment that being used to produce high-quality coated paper.

简要介绍了组合刮刀涂布器的工作原理及影响刮刀涂布量的各种因素,对国产组合刮刀涂布器的的设计特点、参数及结构做了相关说明,对今后国产高速刮刀涂布器的设计进行了展望。