Stainless steels brushing

External parts such as the valve body, bonnet and cap should be cleaned by immersion in a bath such as hot Oakite solution or equivalent. These external parts may be cleaned by wire brushing, provided the brushes do not damage or contaminate the base metals. Only clean stainless steel brushes should be used on stainless steel components. For the ultimate best results, these parts could also be pickled and passivated. 

Use a stainless steel brush to clean the inside of the tube, then rinse with water. I suggest this for all of the piping, tubing and fittings used for this project. Materials as they come from all suppliers are coated with residues of all sorts. There should be no residual oil or other contaminants in this tube. Do not assume that a component is clean merely because it looks clean. 

Stainless steel brushes Soft deposits and light scales in ferrous tubes (e.g. carbon steel, stainless steels)... 

Clean the interior of vessel using a stainless steel brush (1/4" diameter). Gently tap out debris. Care must be taken not to score the raised circular seats at the opening of the vessel as this will result in a poor seal and loss of gas during pyrolysis. 

On semi-products to be welded, these spots need to be removed carefully in the welding zone by strong brushing with a stainless steel brush. 

This is a particnlar problem in applications in which the base metal has marginal corrosion resistance. The effect may be cansed by inadequate heat-tint removal, by the use of lower-alloy stainless steel brushes such as Type 410 or 304, or hy the redeposition of abraded metal or oxides. 

The joint configuration of a typical Zircaloy-2 weld is shown in Fig. 5-26. All root passes were made using the preplaced insert which had been machined from swaged Zircaloy-2 wire. The inserts were tacked into place with a hand torch before the machine welding was started. The first filler metal pass was made with either 3/32- or 1/8-in. wire and all others with 1/8-in. Careful wire brushing with a stainless steel brush was required after every pass. Welding details for a typical joint are tabulated in Table 5-17 detailed procedures are given in Ref. 27. 

Hasvold et al. (1997) reported that stainless steel brush electrodes were used as cathodes in an undersea vehicle power source, but that carbon brush electrodes performed better. However, they did not test these cathodes in any MFC applications. 

Stainless steels Clean stainless steels in 20% nitric acid at 60°C for 20 min. In place of chemical cleaning, use a brass scraper or brass bristle brush or both, followed by scrubbing with a wet bristle brush and fine scouring powder. 

This contamination, as in aluminum, is called smut. The usual method for desmutting is to wipe the work piece after rinsing, while it is still wet or to brush mechanically with a stiff wire bristle brush. However, it has been found that only a portion of the smut is removed by these methods and chemical etches are required to remove all of the material. An example of smut on stainless steel is shown in Figure 5 (12), where a surface which had been treated in hot sulfuric acid is shown. 

Shellfish. Before opening, wash exterior of the shell with a brush and potable water to remove all loose silt and dirt, and drain. Separate the edible portion from shells of at least 10 specimens, place in a suitable tared container and determine the wet weight. Blend the sample (solid and liquid) using a blender with stainless steel blades and Teflon gaskets. After removing edible portions from shell oysters, shell clams and scallops, transfer the shellfish meats to a skimmer, pick out pieces of shell and drain for 2 min before homogenizing meat and liquid. 

Figure 12-31. Blood drop treated by FE-DBD 15 s of FE-DBD (left) and eontrol (right) photo was taken 1 min after the drops were plaeed on brushed stainless steel substrate.

Calibrator with ultrasonic gauging for pipe and tubing extrusion A=rubber seals B = stainless steel guides C brushes (to remove bubbles) D ultrasonic probes E water drain and water inlet. 

Electrode materials for a BES require a high specific surface area in order to create a high volumetric current density 1.3 m g for granules (Mersen, Wemmel, Belgium) and 0.6 m g for felt materials (Alfa Aesar, Ward Hill, MA, USA) are commonly found in a BES. When reporting specific electrode surfaces, one has to keep in mind that most surface areas are determined by means of N2 gas adsorption. With three-dimensional electrodes, it is essential to determine the surface available for biological interaction instead of the surface available for N2 adsorption. Different types of carbon and stainless steel have mostly been used for both anode and cathode electrodes. Carbon materials that are frequently appHed are granular, felt, cloth, brushes, or solid blocks [9-12]. 

The CE of the experimental cell is a stainless steel strip connected to a Cu ring surrounding the external perimeter of the Teflon container. Electrical connection to the CE is made through carbon brushes pressed against this Cu ring. The RE is placed in a glass holder equipped with a salt bridge, which connects to the main electrolyte. Both the platen and the polisher head are rotated at the same velocity (80—100 rpm). 

Sin MC, Sun YM, Chang Y. Zwitterionic-based stainless steel with well-defined poly-sulfobetaine brushes for general bioadhesive control. ACS Appl Mater Interfaces 2014 6 861-73. 

The mop fan/deduster extraction unit made in 304L stainless steel has proved to be ideal for this application. The wetted fibre brush, rotating at high speed, creates... 

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