The Use Of Nickel Iron And The Related Materials
In 1804, since the first time tried out metal nickel from ore
, but because of some factors like the technical conditions and resource restriction, make nickel have not significant development about 100 years. Until the first world war, the world nickel production only thousands of tons. After the first time, especially after the second world war, nickel production growth quickly.
Metal powder supplier put the silicon magnesium nickel ore, gypsum and coal in reduction smelting, after reduction get nickel matte, so that the little nickel got enrichment from the run of mine ore. After burning the sulfur, will get nickel oxide in solid state then with carbon reduction system to get nickel.
Nickel in cast iron has slight graphitizing effect, can stable pearlite and reduce ferrite content. So the nickel in cast iron helps to obtain uniform and the integrated structure and good performance. Add a small amount of nickel powder can lead to the formation of a fine pearlite. Fine and stable pearlite can make the cast iron has good processing properties and hardness. Therefore, addition of nickel cast iron parts can be used to make cars in manufacturing casting.
Containing chromium, cobalt and molybdenum low iron nickel alloy, with high temperature alloy, the general said hastert corrosion resistance of nickel base alloy, in 923 when the tensile strength as high as 233.24 MPa. Contain Ni30 % - 90% of the iron nickel alloy magnetic conductivity is high, therefore, nickel titanium memory alloycan be used in electrical and electronic industry.
To average people, alloy is a kind of abnormal hard, can transfer heat and a good conductive material. But, incredibly, nickel and titanium alloy has the memory function similar with people. And its memory is very strong, after a long time, repeat thousands of times it still accurate.
The memory function of nickel titanium alloy has many uses. For instance, use it to make the robot arm will change with the change of temperature, the up and down appears very lifelike, like robot really have feelings. Nickel titanium alloy in the medical use also have an important role that you can't imagine. For example, the nickel titanium alloy wire is small diameter of the spring form, make it in body temperature conditions remember their appearance. Then straight it again, through a small duct, in X-ray exposure, slowly insert in the arteries. Conduit of nickel titanium alloy wire in body temperature stimulating, slowly become spring form, as formed a layer of liner in the arterial wall, which can prevent the danger of the artery wall too thin.
In the garment industry, nickel titanium alloy is also useful. In the manufacturing of women use bra, if use nickel titanium alloy to replace steel wire support, can greatly prolong the service life of bra. Manufacturers according to every womans breast size and need to create specific products in various temperature under the condition of body temperature, this product even after repeated washing, as long as it run into the memory temperature, it will soon return to its original shape.
Rainie nickel catalyst (nickel alloy) physical chemical properties: before rainie nickel catalyst activation it is a silver amorphous powder (nickel alloy powder), with medium degree of flammability, in the case of water exist, part of them activaty and generate hydrogen easy to agglomerate, long-time exposure in air easy weathering. After nickel alloy powder activated it is black particles, with lively hydrogen, unstable, it must be submerged in water or ethanol preservation in the air oxidation burning. Use: this product is mainly used in basic organic chemical catalytic hydrogenation reaction. Can be used in the organic hydrocarbon bond hydrogenation, carbon and nitrogen bond hydrogenation, nitroso compound with the nitro compounds hydrogenation; Azo and azoxy compound, amine, amine and even nitrogen benzyl of hydrogenation, also can be used for dehydration reaction, ring formation reaction, condensation reaction, etc.
Source:http://www.mhcmp.com
by: anelwew
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