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Then, the needle gun is used to remove rust, loose scale, and paint, leaving bare metal. [5] It is used most effectively by holding it at a 45° angle to the work surface. [5] It is recommended that an area no larger than 6 to 8 inches (150 to 200 mm) be cleared at once. [5] Two to three passes over an area is generally sufficient to clean it. [5]
Spray transfer GMAW. Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to fuse (melt and join).
O-2 (98% argon/2% oxygen) is used for spray arc on stainless steel, carbon steels, and low alloy steels. Better wetting than O-1. Weld is darker and more oxidized than with O-1. The addition of 2% oxygen encourages spray transfer, which is critical for spray-arc and pulsed spray-arc GMAW. O-1 (99% argon/1% oxygen) is used for stainless steels.
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The company processes crude oil and other feedstocks into a wide variety of customized lubricating oils, solvents, waxes, synthetic lubricants, and other products. Calumet's specialty products are sold to domestic and international customers who purchase them primarily as raw material components for various industrial and consumer applications.
CRC's first product, 5-56, is still sold. However, 6-56, a silicone-based replacement, is CRC's current competing product for WD-40. [5]Brakleen, a tetrachloroethylene (PERC)-based brake cleaner, is one of CRC's signature products.
A lubricant (sometimes shortened to lube) is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces.
Propylene is used in production welding and cutting. It cuts similarly to propane. When propylene is used, the torch rarely needs tip cleaning. There is often a substantial advantage to cutting with an injector torch (see the propane section) rather than an equal-pressure torch when using propylene. Quite a few North American suppliers have ...