Mechanical brushing

A development reported by Zhao et al. combines mechanical brush scrubbing with in situ oxide underetching mechanism in a single tool [19]. The HF diluted at 0.5 to 1% injected in the second brush of the scrubber optimizes slurry removal. 

The silk from the cocoon of the mulberry silk spinner caterpillar [Bombyx mori) has been the most important source of natural silk for textiles for more than 5000 years. The cocoons consist of about 80% silk fiber and 20% glue. After immersion in hot water to soften the glue, the cocoons are treated with mechanical brushes that unwind the fibers. 

It is possible to mechanize brush methods by using hollow brushes through which the liquid adhesive is fed. This improves production rates and coating uniformity and cuts waste. Uniform films are generally difficult to achieve, but operators can become proficient with time. 

Residual charge on the P/R is removed by uniform illumination. The last toner residues are neutralized by corotron driven by an alternating voltage and are removed by mechanical means such as mechanical brushes, wiper blades, disposable sheets, or developers working in reverse (often with an electrical bias) removal of the toner maybe assisted with a vacuum, and solid lubricant can be incorporated in the toner to assist transfer and cleaning. 

In mechanical brushing and machining normal metal finishing processes are used, which are applied e. g. for removal of surface oxides or rust. These processes normally generate aerosols and associated radioactive contamination, a problem which has to be met by the use of appropriate installations (e. g. glove boxes). 

Mechanical brushing or mechanical activation of metal surfaces just prior to film deposition is a technique that produces improved adhesion of vacuum-deposited coatings on strip steel. The mechanical brushing disrupts the oxide layer, exposing a clean metal surface. 

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