Ferrosilicon 70 je sestavljen predvsem iz dveh elementov, silicija in železa, od katerih je vsebnost silicija približno 70%, ostaloFerrosiliconski delčekIma dobro tekočnost in prepustnost zraka . Ko ga dodamo v peč, jo je mogoče bolj enakomerno porazdeliti v staljeno kovino, ki je pridobljena s polno reakcijo . Prav tako je primerno za shranjevanje in prevoz ter zmanjšuje letenje prahu .

Ferro silicon 70 10-50mm

Kemična sestava

Razred	Kemična sestava (masna frakcija)%
	Si	Al	C.	Mn	Cr	P	S	C
	Večji ali enak	Manj kot ali enako
FESI90AL1.5	87.0~95.0	1.5	1.5	0.4	0.2	0.04	0.02	0.2
Fesi9oal3.0	87.0~95.0	3	1.5	0.4	0.2	0.04	0.02	0.2
Fesi75al 0.5- a	74.0~80.0	0.5	1	0.4	I0.3	0.035	0.02	0.1
Fesi75al 0.5- b	72.0~80.0	0.5	1	0.5	0.5	0.04	0.02	0.2
Fesi75al 1.0- a	74.0~80.0	1	1	0.4	0.3	0.035	0.02	0.1
Fesi75al 1.0- b	72.0~80.0	1	1	0.5	0.5	0.04	0.02	0.2
Fesi75al 1.5- a	74.0-80.0	1.5	1	0.4	0.3	0.035	0.02	0.1
Fesi75al 1.5- b	72.0~80.0	1.5	1	0.5	0.5	0.04	0.02	0.2
Fesi75al 2.0- a	74.0~80.0	2	1	0.4	0.3	0.035	0.02	0.1
Fesi75al 2.0- b	72.0~80.0	2		0.5	0.5	0.04	0.02	0.2
Fesi 75- a	74.0~80.0			0.4	0.3	0.035	0.02	0.1
Fesi 75- b	72.0~80.0			0.5	0.5	0.04	0.02	0.2
FESI65	65.0~72.0			0.6	0.5	0.04	0.02

Uporaba Ferrosilicon 70 z velikostjo 10-50 mm so predvsem v naslednjih vidikih

Polje za pripravo jekla:

Deoksidizer:

In the steelmaking process, fesi 70 has a strong affinity with oxygen and can react with oxygen in molten steel to generate oxides such as silicon dioxide. These oxides can float to the surface of molten steel and be removed, thereby effectively reducing the oxygen content in molten steel, reducing defects such as pores and inclusions in steel, improving the quality and density of jeklo in izboljšanje žilavosti in drugih lastnosti jekla .

Agent za legira:

Adding ferrosilicon 70 to steel can improve the strength, hardness, wear resistance, corrosion resistance and other properties of steel. For example, when smelting structural steel, tool steel, spring steel and silicon steel for transformers, adding an appropriate amount of ferrosilicon 70 can make the silicon content in the steel reach the specified range, thereby improving the organizational structure and performance of the steel and meeting the Zahteve jeklene zmogljivosti na različnih inženirskih poljih .

Industrija livarne:

Inokulant:

In the production of gray cast iron, it can promote the graphitization process, make the graphite morphology finer and more evenly distributed, thereby improving the mechanical properties of cast iron. It can act as the core of graphite, promote the precipitation of graphite in a finer form, refine the matrix structure of cast iron, reduce the pearlite interlamellar spacing, increase the number of pearlites, and thus improve the strength in žilavost litega železa ter izboljšajo njegovo odpornost na obrabo in obdelavo .

Spheroiding Sredstvo:

In the production of ductile iron, it is an important auxiliary material for spheroidizing agent. It works together with other spheroidizing elements to effectively prevent the formation of carbides, promote the spheroidization of graphite, increase the number of graphite balls in cast iron, make the ball diameter more uniform, and improve the roundness, thereby significantly improving the mechanical properties of ductile iron, making its strength, žilavost, duktilnost itd.

Proizvodnja Ferro zlitine

Zaradi velike kemijske afinitete med silicijem in kisikom ter nizko vsebnostjo ogljika v visoko-silicijskem feroziliconu je pogosto uporabljeno reducirajoče sredstvo pri proizvodnji nizkoogljičnih ferroalys v industriji Ferroalloy .

ferro silicon 70 10-50mm

Približno dodajanje razpona v različnih scenarijih jekla

Navadno ogljikovo jeklarstvo

When it is used as a deoxidizer, its addition amount generally accounts for about 0.2% - 0.5% of the total mass of molten steel. If the initial oxygen content of the molten steel is relatively high, or there are slightly higher requirements for the density and purity of the steel, such as for the manufacture of some structural steel for construction, the addition amount may be close to 0,5%; Medtem ko je za navadno civilno gradbeno jeklo in druge situacije, ko zahteve glede deoksidacije niso tako stroge, lahko dodatni znesek 0,2% - 0.3%, da izpolnite osnovne zahteve za deoksidacijo, zmanjšajo vsebnost kisika v staljenem jeklu in zmanjšajo napake, kot so pore in vključitve.

Če dodamo kot zlitinsko sredstvo za povečanje vsebnosti silicijevega jekla za izboljšanje zmogljivosti, se bo razmerje dodajanja razlikovalo glede na različne zahteve ciljnega jekla za vsebnost silicija ., ki običajno upošteva približno 0 . 3% - 1%, ko se na primer znajdejo vsi masi mase moltnega jekla {8} upor in moč, znesek dodajanja je približno 0,3% - 0.6%; Če je treba zmogljivost še izboljšati in uporabiti za proizvodnjo izdelkov iz ogljikovega jekla z višjimi zahtevami za trdoto, se lahko dodatna količina poveča na 0,6% - 1%.

Strukturno jekleno jeklo z nizko zlitino

When used as a deoxidizer, the addition amount of ferrosilicon 70 accounts for about 0.3% - 0.6% of the total mass of molten steel. Because low-alloy structural steel has relatively higher requirements for steel quality, the addition amount of deoxidation is usually slightly higher than that of ordinary carbon steel, in order to better remove oxygen from molten steel, Zagotovite dobro celovito delovanje jekla, zmanjšati notranje napake in olajšati nadaljnjo obdelavo in uporabo.

As an alloying agent, in order to meet the silicon content in low-alloy structural steel to obtain better comprehensive properties such as strength, toughness, and corrosion resistance, its addition ratio is generally around 0.5% - 1.2%. Different alloy composition designs and target performance requirements will adjust the addition amount within this range. For example, for Konstrukcijsko jeklo z nizkim zlitinom, ki se osredotoča na izboljšanje trdnosti in korozijske odpornosti, je lahko dodatna količina bližja 1% - 1.2%.

Posebno jeklo jekla (na primer vzmetno jeklo, ležajsko jeklo itd. .)

V postopku izdelave jekla tako posebnih jekel s strogimi zahtevami glede zmogljivosti, ko se Ferrosilicon 70 uporablja kot deoksidizer, dodatna količina pogosto predstavlja približno 0 . 4% - 0.8% celotne mase moltiranih jeklo Organizacijska struktura in uspešnost.

When used as an alloying agent, since spring steel, bearing steel, etc. have precise requirements for silicon content to achieve specific elasticity, hardness, wear resistance and other properties, the addition ratio of ferrosilicon 70 is usually around 0.8% - 1.5%. The addition amount is finely adjusted according to the composition specifications of Specifično jeklo in značilnosti proizvodnega procesa za zagotovitev, da različni kazalniki zmogljivosti jekla ustrezajo visokim standardom kakovosti.

ferro silicon 70 10-50mm