FeSi For Metallurgical Deoxidizer

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Specifications

FeSi
1.13 years' professional experience
2.Controlled composition&size
3.ISO&SGS QA
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FeSi

Description

Ferro Silicon is a kind of ferroalloy which is composed of ferrum and silicon. Ferro Silicon uses coke, quartz (or silica) as raw materials and is made by electric furnace. Because silicon and oxygen are easily compound into SiO2, the ferrosilicon is often used as deoxidizer in steelmaking.

Application

1. Ferrosilicon is often used as deoxidizer in steel- making.

2. Ferrosilicon also can be used as alloy elements join agent, which is widely used in low alloy steel, non-ferrous metal, bearing steel, heat-resistant steels and electrician silicon-steel.

3. It can be used as a reductant in ferroalloy production and chemical industry.

4. In iron industry it can be used as inoculant and nodulizer.

Specification

Brand	Chemical Composition (%)
	Si	Al	Ca	P		S		C		Fe
		<=
FeSi75-A	74.0-80.0	1.5	1		0.035		0.02		0.2		Balance
FeSi75-B	72.0-80.0	1.5	1		0.04		0.02		0.2		Balance
FeSi72	72	1.5	1		0.04		0.02		0.2		Balance
FeSi70	70	1.5	1		0.04		0.02		0.2		Balance
FeSi65	65.0-72.0	2	1		0.04		0.02		0.2		Balance
FeSi45	40.0-47.0	2	2		0.04		0.02		0.2		Balance

Size:0-3mm,3-10mm,10-100mm or as the customers’ requirements

FeSi For Metallurgical Deoxidizer

Q:What is the heat treatment process of cemented carbide?: The common heat treatment process of steel bonded carbide is spheroidizing annealing, quenching and tempering.1, spheroidizing annealing die steel bonded carbide matrix is steel, as the alloy tool steel, need to be spheroidizing annealing treatment, can machine processing. The process of spheroidizing degradation is: heating 850~890 DEG C, holding 4h, and cooling the furnace to about 730 DEG C, holding 6h, the furnace is cold, and the air cooled below 500 degrees centigrade,2, the purpose is to make the quenching matrix transforms into martensite, obtain high mechanical properties, due to poor thermal conductivity, preheating, hard steel bonded carbide in carbide phase of austenite grain growth to deter, and the dissolution of carbide in the matrix alloy, iron and hinder the diffusion of carbon atoms, of austenite the grain growth plays an inhibitory effect, so the steel bonded hard alloy quenching overheating less than alloy tool steel, quenching temperature can be higher, the time may be longer, usually for WC type steel bonded hard alloy, quenching temperature of 1020~1050; for TiC type steel bonded hard alloy, quenching temperature is 950~1000 DEG C; G type steel bonded cemented carbide phase with high speed steel, quenching temperature of 1200~1280.3, steel bonded hard alloy die after quenching tempering should be timely, especially the large die should be timely, in order to eliminate quenching stress, prevent mold cracking, while tempering can adjust the organization to obtain the mechanical properties required, tempering temperature often take 180~200 C, 2h insulation, high toughness, high temperature tempering can be used as 500~650 C, but the need to avoid the brittle temperature zone at 250~350 DEG C, high temperature tempering, the carbide precipitation and residual austenite transformation, there will be two hardening, but high temperature tempering will cause precipitation of lead carbide link impact toughness decreases.

Q:What are the advantages of carbide V-CUT knives and diamond V-CUT knives?: Precision machining, high finish, sharp blade, machining V groove surface smoothness, no burr burr, greatly improve product quality.Polycrystalline diamond V-CUT knife is now used more and more, and its advantages are: hardness is higher than hard alloy, longer service life, especially in the CNC V-CUT Slitter, the use of good results.

Q:What are the fields of nano WC Cemented Carbides applied?: (2) electronic industry. The development trend of electronic products is miniaturization, integration and precision. The integrated circuit board is made of epoxy resin, glass fiber or glass fiber reinforced plastic. This requires micro drill has high hardness and wear resistance; while the drill diameter is very small (generally 0.2 ~ 0.3mm, and 0.05mm), easy to break, also called bit has high strength and toughness, and need to correct drilling hole position accuracy, and the drill bit has high stiffness (elastic modulus). These conflicting requirements. The common hard alloy and fine grain carbide drills are difficult to meet these requirements, only the use of nano grain carbide grain size of less than 0.5 m. And as the dot printing needle, its diameter is only 0.2-0.35mm; multi frame processing integrated circuit lead by the progressive die, punch thickness less than 0.2mm, the error is only 0.002mm; in addition to the printed circuit board with wire cutting head disc cutter, and the precision of the small die, all require the use of Nanocrystalline WC cemented carbide in order to achieve its function to produce alloy.

Q:Can YG813 carbide cutters be used for cutting stainless steel intermittently? How much is the cutting speed?: YG813Good wear resistance, high flexural strength and adhesive resistance. Suitable for processing high temperature alloy, stainless steel, high manganese steel and other materials.

Q:Carbide saw blade 30t and 40t what is the difference?: The more the number of teeth, the more smooth the cut section is. If your machine is stable, the sound will be smaller

Q:the blade is hard alloy, the processing material is QT600, the plane lower tool margin is 4mm, the speed and the knife: This belongs to the category of ductile iron, more difficult to process, because the material is hard particles, it is recommended around S=1200 F=400

Q:What is hard alloy grinding?: Its scope of application and the artificial diamond plays a complementary role. Cubic boron nitride wheel grinding of steel parts the efficiency ratio of corundum wheel to nearly a hundred times, five times higher than the diamond grinding wheel, but less than the diamond grinding of brittle materials.The diamond grinding wheel than boron carbide, silicon carbide, corundum and other general grinding blade grain made of sharp corner, small abrasion, long service life, high productivity, good processing quality, but the price is expensive, is suitable for the grinding of hard alloy, ceramic, semiconductor and other high hardness brittle hard processing material

Q:What kind of grinding wheel is the most suitable for carbide tools?. My existing grinder, 2800 rpm, /s wheel diameter, can hold 250mm. Please help answer.: Commonly used in 200*25*32 or 250*25*32 green carbide grinding wheel, hardness K or L, particle size 60Another grinder usually holds two pieces. A piece of green silicon carbide, a piece of brown corundum, brown corundum grinding wheel is used for iron, such as the size and hardness of the cutter bar and green silicon carbide as the new knife. You can also choose 46#'s.Luoyang abrasive tools professional sales all kinds of grinding wheel, carbide blade, diamond grinding wheel

Q:How hard is the carbide knife?: Seven or eight, Baidu is absolutely no problem.

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.

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