Deoxygenation And Desulfurization 3mm 5mm Ductile Iron Inoculation

Deoxygenation And Desulfurization 3mm 5mm Powder Ductile Iron Inoculation

Inoculant introduction:

     Gray cast iron without inoculation treatment has unstable microstructure, low mechanical properties, and white holes in the thin wall of the casting. In order to ensure the consistency of casting quality, inoculation treatment is essential;

     The inoculant used in the inoculation treatment of cast iron is added in a small amount, which has little effect on the chemical composition of cast iron, but has a great effect on its microstructure. The mechanical properties of gray cast iron depend on its microstructure to a large extent. Therefore, the mechanical properties of gray cast iron can be improved, and its physical properties are also obviously affected.

Inoculant Products Parameter:

Specification:

Types of inoculants:

     1.75 Ferrosilicon
     75 Ferrosilicon is the most commonly used inoculant. The content of aluminum and calcium play an important role in the inoculation effect. It is generally believed that in molten iron, aluminum and calcium will react with oxygen and nitrogen to form compounds with high melting points. The core of graphite crystals. Moreover, after adding the inoculant, local silicon-rich micro-regions can be formed in the molten iron, which is beneficial to the precipitation of graphite.

     2. Barium-containing ferrosilicon
     Barium-containing ferrosilicon also has a strong ability to promote graphitization, which can improve the shape and distribution of graphite in thin-walled castings, and it also has the effect of slowing down the growth and decline. The amount of processing is less than 75 ferrosilicon.

     3. Ferrosilicon containing zirconium
     Zirconium has a deoxidizing effect, which is beneficial to improve the fluidity of molten iron, reduce the tendency of cast iron to white mouth, and promote uniform and fine A-type graphite. And it also has the effect of slowing down gestational decline.

     4. Silicon barium alloy
     Using a silicon-barium alloy containing 20-30% barium as an inoculant can significantly reduce the whitening tendency of cast iron and increase the time for maintaining the inoculation effect to about 30 minutes, which is especially suitable for large castings.

     5. Silicon calcium alloy
     Although silicon-calcium alloy has a strong inoculation effect, in addition to the application of cored wire, it is not suitable to use granular alloy as an inoculant for cast iron. Its main disadvantages are: 1. The density is much lower than that of molten iron. Floating affects its effect with molten iron; 2. The tendency to form slag is large; 3. The inoculation effect declines quickly; 4. The amount of addition required for treatment is large, about 0.3~0.5%.

     6. Rare earth inoculant
     Rare earth mixed metals and rare earth ferrosilicon and other inoculants containing rare earth metals, when added in an appropriate amount, have a strong inoculation effect. The effect can be several times that of 75 ferrosilicon, which can effectively eliminate white mouth and slow the decline of inoculation. If the added amount is too high, it may cause excessive cooling when the cast iron is crystallized, and cementite structure will appear. The dosage must be strictly controlled when using.

Inoculant Product Image:

Our Advantages:

     In year of 2012, our company won ferroalloy export license which is approved by the Ministry of Commerce. At present there are 10 sets of intermediate frequency electric furnaces and 4 cored wire production lines. Annually produce more than 20,000 tons of steel-making and casting used subsidiary material, including Nodulizer (FeSiMg), Inoculant (Silicon series, Barium series, Calcium series and Zirconium series, etc), Ferro Alloys ( Ferro Silicon, Calcium Silicon, Barium Silicon, Silicon Aluminum, Calcium Silicon Barium, Calcium Silicon Barium Aluminum, Calcium Silicon Manganese, High Carbon Silicon, Silicon Carbide, and Carbon Additive), Deoxidizer ( Aluminum series and Calcium series ), Alloy Briquettes ( FeSi Briquette, Silicon Ball, SiC Ball, ect ), Alloy Slags (FeSi Slag, Silicon Slag, Manganese-rich Slag ) and Cored Wires ( FeSiMg, CaSi, CaFe, Pure Calcium etc).

F & Q:

1. What is our MOQ?

Basically, Our MOQ is 20 tons. There is no specific limit to order, we can give the best offer according to your situation.

2. Do you provide samples?

Yes, We do. Samples are always available and they can be sent to you directly.

3. How long does the delivery time take?

Our normal delivery time takes about 3 weeks once the contract singed, but it also depends on the quantity of the order.

4. Can we visit your plant?

Of course, we will be always looking for you.