Tubular welding electrode

摘要: 1,134,981. Welding by fusion. LINCOLN ELECTRIC CO. 3 Jan., 1967 [6 1966; 22 Dec., 1966], No. 294/67. Heading B3R. A tubular steel electrode has a filling comprising fluxing ingredients and carbohydrate and/or " flux modifier ". is defined as an organic material other than which (a) liquid during manufacture or welding, (b) capable of coating the when liquid, (c) decomposable at welding temperatures to gaseous products, (d) substantially free elements compounds, e.g. nitrogen, sulphur phosphorous adversely affect weld. The 0A1-10% electrode. Specified modifiers are organic, oleaginous lipoidal materials including synthetic natural waxes, fats oils such as, paraffin wax, microcrystalline slack carnauba beeswax, degras, lanolin, polyethers, lard, tallow, palm coconut fats, glycerides, fatty acids, hydrocarbonaceous gas oils, cylinder stocks lube cottonseed, linseed, fish dioctyl sebacate, polyacrylates, polyalkylenes polyglycols. 1-5% carbohydrates polyhydroxy aldehydes ketones, polysaccharides cellulosic materials. portion made from strip with butt lapp joint. When hydrocarbon, may be present in range 0A5-5% include alloying agents, Al, C, Mn, Si, Mo, Ti, Zr their ferroalloys, iron cast powder, slagging oxides, carbonates, silicates halides well carbohydrate. Examples compositions specified.