FeSi 72%&75% With Chinese Origin Export

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Specifications

Ferro Silicon 72% & 75%.It is used extensively in the steel-making, casting non-ferrous metals and other industrial production.I

1, Features:
The appearance of Ferro Silicon is the grey lumpish solid. It has very strong stabilities and does not place any chemical reaction in the dry air.

2, Application:
It is used extensively in the steel-making, casting non-ferrous metals and other industrial production.It is the good deoxidizer and most steel kind use the Ferro Silicon for deoxidization;

In steel smelting, it is used to sedimentary accretion and expanding deoxidizing.It is used to prove the strength, hardness and elasticity of steel greatly in steel casting.

Grade	Chemicals Composition(%)
	Si	Al	C	S	P
	%(min)	%(max)
FeSi 75% FeSi 75% FeSi 72%	75	0.5-1.0	0.15	0.02	0.04
	75	1.5-2.0	0.20	0.02	0.04
	72	1.5-2.0	0.20	0.02	0.04
FeSi 70%	70	1.5-2.0	0.20	0.02	0.04
Lump size	10-50 mm, 50-100 mm,10-100 mm, 50-150mm: 90%min, or at customer’s option;
Packing	In jumbo bag about 1MT/bag

FACTORY:

FeSi 72%&75% With Chinese Origin Export

Q: Carbide cutters can work on materials of higher hardness: This problem is too general, and hard alloy processing range is very wide (it also has many kinds of material), from soft aluminum alloy, copper alloy to HRC60-70 degree of mold can process, the key is to see what you want to process materials

Q: What kind of clamp blade should be used for hard alloy?: Hard alloy tools are used for turning cemented carbides. Now the general superhard materials are PCD (polycrystalline diamond) and PCBN (poly cubic boron nitride)However, because carbide contains more carbon elements, PCD is easy to produce chemical dissolution (carbon affinity) during processing, so the PCBN blade should be considered.

Q: How are hard alloy fittings machined and polished?: The fittings are then polished with a vibrating grinder!

Q: Carbide according to the structure of the words, what can be divided into?: Cemented carbides are classified into coarse particles, cemented carbides, medium grained cemented carbides, fine grain cemented carbides, fine grain cemented carbides, ultrafine particles cemented carbide, nano particle cemented carbide. Specific, you can refer to Zhuzhou Jing Jing official website

Q: What does American standard cemented carbide grain size C mean?: Therefore, their composition can change in a certain range (such as the composition of titanium carbide in TiC0.5 ~ TiC changes), chemical formula does not conform to the rules of valence. When the dissolved carbon content exceeds a certain limit (such as titanium carbide in Ti: C=1: 1), the lattice type will be changed, the original metal lattice metal lattice into another form, then the interstitial solid solution called interstitial compounds. Metal carbides, especially B, B, IV V VI B metal carbide melting point is above 3273K, the TAC hafnium carbide, respectively 4160K and 4150K, is the highest point currently know material. Most of the carbide hardness large, their microhardness is higher than 1800kg mm2 (micro hardness is hardness says one way for hard alloy and hard compound, microhardness 1800kg mm2 is equivalent to a diamond a Mohs hardness of 9). Many carbides are difficult to break down at high temperatures, and their antioxidant power is stronger than their constituent metals. Titanium carbide has the best thermal stability in all carbides, and is a very important metal type carbide. However, in an oxidizing atmosphere, all carbides are readily oxidized at high temperatures, which can be said to be a major weakness of carbides.

Q: What is the difference between hard alloy steel and high speed steel?: 5, the scope of application is not the same: the general tool materials used carbide, complex difficult to shape, or require very sharp, high toughness and other field applicable high-speed steel

Q: What are the differences in performance between cemented carbide cutting tools and PCD cutters (polycrystalline diamond)?: Different cutting objects, PCD cutter durable, but cutting some materials may not be good on the PCD

Q: Processing stainless steel 301 milling thickness of about 3 millimeters, with what blade good?: You mainly milling the surface is not refined, there is no need to use that good, in one is YS25, cheap, well, that's it, if there is any good advice to my replies

Q: What are the main causes of wear of high speed steel cutting tools and carbide cutting tools?: (1) mechanical wear: the abrasion caused by the friction between the chip and the cutter front, the surface deformation of the workpiece and the sharp friction between the cutter face, called mechanical wear.When the cutting temperature is not too high, the mechanical abrasion caused by this friction is the main cause of tool wear.(2) thermal wear: when cutting, because of the severe plastic deformation and friction of metal, the cutting heat makes the blade hardness decrease, and the wear and tear caused by cutting performance is called thermal wear.It is recommended that the Santak wick tool be used to solve the wear problem.

Q: Printing requirements for cemented carbide: Since 80s the advent of nano cemented carbide, and gradually formed a new sintering method, such as microwave sintering, field assisted sintering (such as spark plasma sintering and plasma activated sintering), two stage sintering, selective laser sintering etc..Vacuum sintering (Vacuum Sintering) is one of the more widely used methods for cemented carbide sintering, which began in the 30s of last century,Great progress has been made in the past thirty years. Vacuum sintering is the process of sintering and pressing in a negative pressure gas medium. Vacuum sintering can improve the purity of furnace gas and the negative pressure can improve wettability of bonded hard phase. Vacuum sintering has the following advantages: sintering in vacuum condition, hinder greatly reduces the adsorption of gas on the surface of powder and closed pore gas on the densification of the powder, is favorable to the diffusion process, which is conducive to the densification; better able to exclude Si, Mg and Ca in the sintered body trace of oxide impurities thus, to improve the purity of hard alloy; improve the wettability of liquid phase sintering, is conducive to tissue shrinkage and improve the alloy.

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