Finish bright

In commercial installation, the acid is applied to the deasphalted oil in propane solution and the sludge is removed by continuous settling. The acidic oil-propane solution is neutralized continuously with a solution of caustic and water-washed for removal of the last traces of caustic. The oil after removal of propane may be finished by conventional percolation through clay to produce a green cast finished bright stock (4). 

The settling of the acid sludge in the presence of propane is said to be sufficiently complete to allow neutralization with a small amount of fine-meshed clay, which is introduced into the acid oil-propane solution and passes with the oil through the propane recovery unit. The clay is removed from the oil by conventional filtration to produce a finished bright stock with a good color (48). 

Triacetate offers better ease-of-care properties than secondary acetate ia many apparel appHcations. Of particular importance are surface-finished fabrics, eg, fleece, velour, and suede for robes and dresses. These fabrics offer superb aesthetic quaHties at reasonable cost. Triacetate is also deskable for print fabrics, where it produces bright, sharp colors. The recent discontinuance of triacetate fiber Hi the United States has led to the use of acetate with fibers such as polyester (47—50). 

These thermoplastic pigments found application in a much wider range of finished products. New, large-volume applications included coated paper for labels and point of purchase signage, gravure for soap box cartons and bright textiles for fashion, and safety applications. 

Process variables also play a significant part in determination of surface finish. For example, the higher the current density, generally the smoother the finish on the workpiece surface. Tests using nickel machined in HCl solution show that the surface finish improves from an etched to a poHshed appearance when the current density is increased from ca 8 to 19 A/cm and the flow velocity is held constant. A similar effect is achieved when the electrolyte velocity is increased. Bright smooth finishes are obtained over the main machining zone using both NaCl and NaNO electrolyte solutions and current densities of 45-75 A/cm. ... 

Strip is produced as wide as 2 m and in thicknesses as low as 0.1 mm in regular mills. FoU in thicknesses of 0.025 mm or less is produced in special mills. To obtain strip with a bright surface, high ductUity, and low hardness, finish rolling is performed hot at 120—150°C. 

Calcium carbonate is one of the most common filler/extenders used in the paint and coatings industry. Consumer and contractor paint formulas can include products from submicrometer size to coarse mesh sizes. The main function of calcium carbonate in paint is as a low cost extender. It is also used to improve brightness, appHcation properties, stabiHty, and exposure resistance. Coarse products help to lower gloss and sheen or even provide textured finishes. The selection of product type and particle size is deterrnined by the desired performance and cost of the coating. 

Casting of Ti alloys for crowns and bridges is done in investment molds that have been allowed to cool almost to room temperatures after firing. The castings are cleaned in electrolytic solutions or in special chemical polishing solutions that impart a bright smooth surface finish to the casting... 

Bright Nickel. Nickel as electroplated from pure nickel salts is a dull grey, satin—like deposit that has to be buffed to obtain a bright finish. 

Torpedo lines shall be bright (uncoated) or drawn-galvanized, and shall be right, regular lay. The lay of the finished rope shall not exceed eight times the nominal diameter. 

Glass-reinforced aluminum foil with either a bright polished or white lacquer surface is utilized with most types of insulant. Primarily it is used as a vapor control layer or as a means of upgrading the fire properties of plastic foams, but it does give a semi-decorative finish to the insulation. It is therefore often use where the insulation is open to view but located away from direct risk of mechanical damage. 

Vacuum deposition of high-purity aluminium has been used as a bright finish of a decorative nature on domestic items and some car accessories, as well as special items for space missions where opacity to solar radiation was required. Continuous deposition on plastic strip at speeds up to 450m/min has been achieved. 

Chemical Polishing improvement in the brightness and levelness of a surface finish of a metal by a chemical dissolution reaction. 

Electropolishing surface finishing of a metal by making it the anode in an appropriate solution, whereby a bright and level surface showing specular reflectivity is obtained. 

Fluorescent lamps are manufactured by squirting a suspension of phosphor particles in an ethyl cellulose lacquer upon the inner surface of a vertical glass tube. Once the lacquer drains off, a film of peuticles is formed. The lacquer is then burned off, leaving a layer of phosphor particles. Electrodes are sealed on the tube is evacuated Hg and inert gas is added and the lamp ends are added to finish the lamp. Lamp brightness and lifetime are dependent upon the particle size distribution of the phosphor particles. The number of small particles is critical since they are low in brightness output... 

Slower acting than + H202 traditional fire dip Excellent throwing power with a bright, smooth, rapid finish... 

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