The performance of the non-ferrous metals nickel, tantalum, niobium and uses

ENi - 1Welding nickel alloy and nickel plated steel 200, 201;Steel with nickel welding of dissimilar materials;The surface of the steel welding.ENiCu - 7MONEL alloy 400 own welding;And 400 MONEL alloy and steel welding;Used for surfacing of steel.ERNiCu - 7MONEL alloy welding, 400 and 400 MONEL alloy with the welding of steel;Using submerged arc welding method for surfacing welding the steel surface;(the buffer layer filling material of 61 alloy deposition) need manual arc welding methodENiCrFe - 2Creep joint welding, welding of dissimilar materials;Martensite steel, ferritic steel and high nickel alloy welding, 9% nickel alloy steel welding.ENiCrFe - 3INCONEL600, 601 alloy and INCOLOY800 alloy itself and between them and the carbon steel or stainless steel welding;The surface of the steel welding.ERNiCr - 4Surfacing welding INCONEL671, 690 alloy, used for surface.ERNiCrMo - 3INCONEL625, INCOLOY825, INCO25-6 mo and MONEL400 alloy welding;Nickel base alloy and stainless steel welding of dissimilar materials;Surfacing.ERNiCrMo - 4INCO C - 276 and other Ni - Cr - Mo corrosion resistant alloy welding;Surfacing welding alloy steel, steel surfacing.ENiCrMo - 10INCONEL622 and other Ni - Cr - Mo corrosion resistant alloy welding;Surfacing alloy steel, dual phase steel, ultra-high strength of dual phase steel, ultra-high strength of austenitic stainless steel welding;The surface of the steel welding.ENiCrCoMo - 1Creep joint welding;INCONEL617, INCOLOY800, 800 h, 800 ht, HP45 alloy and other heat resistant alloy casting itself and the welding between them, the temperature can reach 2100 of joint work.ERNiCrCoMo - 1Creep joint welding;INCONEL617, INCOLOY800, ht 800 h, 800, 800 and HP45 alloy and other heat resistant alloy casting itself and the welding between them, the temperature can reach 2100 of joint work.

Niobium is a steel gray luster of refractory metals, its melting point is 2467 ℃, density of 8.6 g/cm 3.Niobium has good low temperature plastic, can be processed into a variety of cold pressure semi-finished products.High temperature resistance, strength, above 1000 ℃ still has enough strength, plasticity and heat conductivity.At extremely low temperature superconductivity is best, such as about 260 ℃ below zero resistance is close to zero.Under 150 ℃ chemical resistance and atmospheric corrosion.For many acid and salt solution at room temperature are stable, but soluble in hydrofluoric acid and fluoride ions in acid solution and strong alkali solution.Prone to hydrogen embrittlement.Anodized generated when the stability of the oxide film.Niobium, tantalum symbiosis in nature mineral, mineral containing niobium, tantalum has: pyrochlore, niobium, tantalum yttrium iron ore, brown niobium and niobium containing rutile titanium iron, balas and sands containing niobium tantalum acid salt.Certain steelmaking slag and tin slag smelting and refining of niobium important resources.Division of niobium or tantalum ore, mainly based on what minerals containing niobium or tantalum

Niobium is a steel gray luster of refractory metals, its melting point is 2467 ℃, density of 8.6 g/cm 3.Niobium has good low temperature plastic, can be processed into a variety of cold pressure semi-finished products.High temperature resistance, strength, above 1000 ℃ still has enough strength, plasticity and heat conductivity.At extremely low temperature superconductivity is best, such as about 260 ℃ below zero resistance is close to zero.Under 150 ℃ chemical resistance and atmospheric corrosion.For many acid and salt solution at room temperature are stable, but soluble in hydrofluoric acid and fluoride ions in acid solution and strong alkali solution.Prone to hydrogen embrittlement.Anodized generated when the stability of the oxide film.Niobium, tantalum symbiosis in nature mineral, mineral containing niobium, tantalum has: pyrochlore, niobium, tantalum yttrium iron ore, brown niobium and niobium containing rutile titanium iron, balas and sands containing niobium tantalum acid salt.Certain steelmaking slag and tin slag smelting and refining of niobium important resources.Division of niobium or tantalum ore, mainly based on what minerals containing niobium or tantalum

TANTALUM (temple), TANTALUM, Ta, element symbols of wealth derived from Greek mythology the king Tantalus, discovered in 1802.Almost completely does not move by erosion, tantalum in surgery, has great contribution for the body's repair: it can replace the skeleton (skull, for example);Made of foil or silk thread can connect broken nerve;Woven mesh yarn can be used to bandage abdominal muscles.    Metal tantalum is a slightly blue light grey metal, because of its many peculiar features, has a broad application field, therefore, is known as "metal kingdom" generalist.    Tantalum textures is tough, hardness can reach 6-6.5.Its melting point 2996 ℃, behind tungsten and rhenium, was third.The density of 16.6.Tantalum ductility, can be made into a filament or thin foil.Its thermal expansion coefficient is small, each one degrees only hundreds of thousands of six point six.In addition, its toughness is very strong, is more excellent than copper.    Tantalum and excellent chemical properties, high corrosion resistance.In both cold and hot conditions, hydrochloric acid, nitric acid and aqua regia "no response.Tantalum to be included in the 200 ℃ of sulfuric acid soaking for one year, the surface damage of only 0.006 mm.Experiments show that tantalum at room temperature, the alkali solution, chlorine, bromine water, dilute sulphuric acid and many other drugs don't work, only under the effect of hydrofluoric acid and hot concentrated sulfuric acid to respond.Such a situation is relatively rare in the metal.    The characteristics of tantalum has made its application field is very broad.In making all kinds of inorganic acid equipment, tantalum instead of stainless steel are available, and dozens of times higher life expectancy than stainless steel.In addition, in the chemical industry, electronics, electrical and other industries, tantalum can replace the past need to be borne by the precious metal platinum, the cost is reduced greatly.    In addition, tantalum or refine super steel, corrosion resistant steel and heat resistant steel alloy elements, can provide developing rockets and spacecraft, space technology required special materials such as the jet plane.Made of tantalum, and tungsten non-magnetic alloy is widely used in electrical industry, especially of tantalum and tantalum carbide, composed of carbon has great hardness, even under the condition of high temperature and a diamond.Made of it turning tool, but many high-speed cutting hard alloy;Made all kinds of drill bit, it can replace the hard alloy or a diamond.Therefore, tantalum is also known as "vitamin" in smelting.    In modern medicine, tantalum can also play an important role.Research proves that tantalum is not only to the human body without any damage, and can grow in the muscles of the human body is above, say on medicine is called "biological intermiscibility".Doctors use the properties of tantalum, used to repair, closed the human body the skull and crack and defect of extremities fractures.At the same time, can also be made more than a human hair one over ten filaments, tantalum used in visceral surgery using sutures, or embedded artificial eye.This kind of tantalum can even alternative tendon and nerve fibers.Medical home tantalum plate made of artificial ears, installed in the head after transplanted from the leg skin again, after a period of time, a new transplantation skin grow very well, make people almost can not see is a man-made tantalum ear