A high hardness and wear-resisting flux cored wire

Details A high hardness and wear-resisting flux cored wire A high hardness and wear-resisting flux cored wire

B - Operations, Transporting

23

K

B23K 35/22 (2006.01) B23K 35/368 (2006.01) B23K 35/40 (2006.01) B23K 35/32 (2006.01)

Patent

CA 2262858

A high hardness and wear-resisting flux cored wire, wherein said core includes (in wt.%): molybdenum 1-10; tungsten 1-10; graphite 1-10; nickel 1-7; vanadium 2-10; chromium 20-40; sodium silicon fluoride (N~2SiF6) 5-15; niobite 1-10; boron 10-15; quartz 2-10; rare earth 1-8. These components are ground into powder and stirred thoroughly and then placed onto a steel strip with a thickness of 0.25-0.6 mm. The steel strip is extruded by an extrusion press into a wire which is finally drawn out by a wire drawing machine, and the high hardness and wear-resisting flux cored wire is thus obtained. The wire can be used for repairing welding cold roll with a hardness of HRC 62-65 without cracks.

Câble à âme avec dureté et résistance à l'usure élevées, dont l'âme contient (en poids): molybdène 1-10, tungstène 1-10, graphite 1-10, nickel 1-7, vanadium 2-10,, chrome 20-40, silicofluorure de sodium (Na2SiF6) 5-15, colombite 1-10, bore 10-15, quartz 2-10, terres rares 1-8. On broie ces composants de façon à obtenir une poudre, on les mélange entièrement et on les applique sur une bande d'acier ayant une épaisseur comprise entre 0,25 et 0,6 mm. On extrude la bande d'acier au moyen d'une presse à filer de façon à former un câble que l'on étire au moyen d'une machine à tréfiler, ce qui permet d'obtenir ledit câble à âme ayant une dureté et une résistance à l'usure élevées. Ce câble peut être utilisé pour réparer un rouleau de soudure longitudinale ayant une dureté égale à un pouvoir de rupture compris entre 62-65, sans fissures.

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