What is the role of foundry carburizer

What is the role of foundry carburizerWhat is the function of casting recarburizer:The use of recarburizers in castings can increase the amount of scrap steel and reduce or eliminate the amount of pig iron. In the electric furnace smelting feeding mode, the recarburizer should be put into the furnace together with scrap steel and other ingredients. A small dose can be added on the surface of molten iron. However, a large amount of molten iron should be avoided to avoid excessive oxidation, resulting in insignificant carburization effect and insufficient carbon content in castings. The amount of carburant added should be determined according to the ratio of other raw materials to carbon content. For different types of cast iron, different types of recarburizers should be selected according to the needs. According to the characteristics of the recarburizer itself, pure carbon-containing graphitized materials are selected to reduce excessive impurities in pig iron. The choice of recarburizer can reduce the production cost of castings.If you want to know more about ferromanganese, you can contact our company.Email: joanna@aykxgj.com +8616638320060

What is the role of inoculants

What is the role of inoculantsThe inoculant is a kind of inoculating agent that can promote graphitization, reduce the tendency of white mouth, improve the morphology and distribution of graphite, increase the number of eutectic clusters, and refine the matrix tissue, which has a good effect in a short time (about 5-8 minutes) after the incubation treatment. It is mainly suitable for general or post-instantaneous pregnancy in various situations. What is the role of inoculants?1. Eliminate or reduce the tendency of white mouth;2. Avoid supercooling tissue;3. Reduce the wall thickness sensitivity of iron castings, so that the difference in microstructure at the thin and thick sections of castings is small, and the difference in hardness is also small;4. It is conducive to eutectic nucleation and increases the number of eutectic clusters;5. The morphology of graphite in cast iron is mainly fine and evenly distributed A-type graphite, so as to improve the mechanical properties of cast iron.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

The use of graphite recarburiser and petroleum coke recarburisis

The use of graphite recarburiser and petroleum coke recarburisis Uses of ink recarburizer:1. Graphite recarburizer has the purpose of improving the metallographic structure of castings;2. Graphite recarburizer has the use of quickly making cast iron form graphite core;3. Graphite recarburiser also has the use of shortening the carbonization time and improving the carbonization effect;Uses of petroleum coke recarburizer:1. Petroleum coke recarburiser has the purpose of effectively increasing the furnace temperature;2. Petroleum coke recarburiser has the purpose of improving metallurgical yield;3. Petroleum coke recarburiser has the purpose of improving the metallurgical environment.The above are the different uses of graphite recarburiser and petroleum coke recarburisizer, and if you want to know more, you can contact us!You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

How to control the dosage of inoculant

How to control the dosage of inoculant How is the dosage of inoculant controlled:1. Ductile iron generally adds more inoculant than gray cast iron;2. If the iron solution after conception treatment has a long pouring time, the amount of addition should be increased due to the decline of gestation;3. Thin-walled castings are easy to produce white mouths, and the amount of inoculant added should increase accordingly;4. When there is more slag in the molten iron, because the inoculant will be wrapped and difficult to melt once it comes into contact with the slag, the amount of addition increases accordingly;5. Excessive addition of inoculating agent will lead to problems such as excessive slag, reduced temperature of molten iron and shrinkage of cattle produced by eutectic groups. If the inoculant block is too large, it will not be able to uniformly breed the iron liquid, and the unmelted inoculant will be poured into the cavity; If the block is too small, it is easy to oxidize and cause slag, and it is also prone to gestation decline.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

European Ferroalloy Price Insights - February 2023

In February, the bulk ferroalloy market was quiet, and there were no significant price fluctuations compared to the previous month. On the other hand, in the precious metal alloy market, price speculation continues, most importantly causing molybdenum prices to soar. However, by the end of February, quotes pulled back slightly.Market insightsFebruary 28, 2023At the same time, the dynamics of global steel production are still not optimistic. According to worldsteel, carbon steel production fell 3% year-on-year to 145.3 million tonnes in January. Only the Middle East (+19.7%) and China (+2.3%) are among the countries with positive growth drivers for the first time in six months. The world's major economies ended January with a marked decline. EU steel production plunged 15.2% (especially Germany, which plunged 10.2%) to 10.3 million mt, and North America plunged 5.6% to 9.1 million mt.However, market participants remain optimistic. In recent months, some plants in Europe have announced that they are restarting their furnaces, which could lead to increased consumption of raw materials, including ferroalloys, by the end of the quarter.The Metalshub All Metals Index rose 15 points in February due to higher prices in precious metal alloys. The seasonal recovery in demand in March-April is expected to support steel and raw material prices.Suppliers try to increase the price of FeSi and HC FeMn by shipping in time to reduce alloy inventory.European ferrosilicon producers cut production due to sluggish demand.After the new furnace of the YDD plant is put into operation, the supply of silicon alloy in Kazakhstan may increase.Global manganese ore prices have risen.Eramet set the price of Gabonese manganese blocks shipped to China at $5.8/mn in March, up 30% from December.Malaysian high-carbon ferromanganese producer halved production due to weak demand.Precious metals and chromium alloysThe strong earthquake in Turkiye caused disruption to chromium ore shipments, but so far, contrary to expectations, has not affected ferrochrome quotes.Ferromolybdenum prices in Europe soared last month as traders speculated about supply shortages.As domestic demand increases at the end of the holiday, Chinese ferrovanadium exporters have shifted some sales away from foreign markets, causing prices to rise in Europe.Russia's leading tungsten producer ceased an asset for environmental reasons.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

What is the role of barium silicon inoculant

What is the role of barium silicon inoculantInoculants have ferrosilicon inoculants, barium silicon inoculants, etc., each inoculant has different effects, Kangxin metallurgy takes you to understand the barium silicon inoculants:1. Fine graphite, A-type graphite in gray iron castings, for ductile iron castings, it can make the graphite in ductile iron fine, round, and improve the nodularization grade;2. It can reduce the subcooling degree of molten iron, the precipitation of graphite, significantly reduce the tendency of white mouth, reduce the relative hardness, and improve the cutting performance of castings;3. Strong anti-regression ability, the anti-regression time is twice that of 75 silicon, and the amount of barium silicon inoculant is lower than half of that of 75 ferrosilicon inoculating agent, while preventing the associated spheroidization decline;4. The wall thickness sensitivity is small, which improves the uniformity of the section and reduces the tendency of shrinkage;5. Stable chemical composition, uniform processing particle size, small composition and quality deviation;6. Low melting point (less than 1300°), easy to absorb melting during gestational treatment, and there is very little dross.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

What kind of steel is used when smelting ferrosilicon balls

There are many ferrosilicon related products, such as ferrosilicon balls, ferrosilicon blocks, ferrosilicon powder, ferrosilicon particles, etc. However, there are many manufacturers engaged in ferrosilicon consumption and sales on the market today, and the market competition is also very fierce, as long as the quality of ferrosilicon is ensured, the talent has won the recognition of more users and lost its wide application. So how to smelt high-quality ferrosilicon, not only need to master the correct smelting method, but also need to control the raw materials of ferrosilicon. Steel is one of the raw materials for smelting ferrosilicon, so what kind of steel can be used to smelt high-quality ferrosilicon.The iron in ferrosilicon is derived from the steel chips in the charge, according to the requirements of the quality of ferrosilicon, only ordinary carbon steel chips are allowed in smelting, and alloy steel chips are not allowed, such as stainless steel, high chromium, high manganese steel and so on. Therefore, smelting ferrosilicon such as alloy steel chips will form scrap. Pig iron filings should also not be used because of their high phosphorus content. Smelting ferrosilicon can not use non-ferrous metal chips such as copper, aluminum, etc. Therefore, in order to ensure the quality of ferrosilicon, only ordinary carbon steel chips are allowed in smelting. Steel chips with severe rust can not be used, because of its many impurities, iron content is not easy to control during smelting, and at the same time, the strength of steel chips with severe rust is poor, there are many powders, and the participation in the furnace affects the permeability of the material surface. Therefore, the iron content of the steel chips used in the rules is greater than 95%, and the appearance should be clean, and no obvious impurities are allowed. The length of the steel chips should not be too long to prevent uneven mixing and infarction of the lower pipe, and the overly long steel chips also make the charge over-charged unevenly, affecting the uneven three-phase load. For this reason, the length of regular steel chips is not more than 100 mm.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060      

Silicon carbide ball science

Silicon carbide ball scienceSilicon carbide is a new type of strong composite deoxidizer, replacing the traditional silicon powder toner stop deoxidation, compared with the original process, the physical and chemical functions are more fluctuating, the deoxidation effect is good, the deoxidation work is short, energy saving, improving steelmaking efficiency, improving the quality of steel, reducing the consumption of raw and auxiliary materials, increasing environmental pollution, and improving electric furnace power and economic benefits.(1) Silicon carbide balls are wear-resistant, improve the stability of raw materials, reduce the thickness of the mill and the volume of the ball, and increase the volume of the mill by 15%-30%.(2) Uses: secondary for electric furnaces and cupola furnaces, as oxygen absorbers;(3) Used in casting and steelmaking industry (special steel, stainless steel, T steel, G steel, K steel and other factories can be used), improve the temperature in the furnace, extend the melting industry, improve steel output, and play a role in carbonization, deoxidation, silicon addition, heating and so on(4) It can also be used as a substitute for ferrosilicon. And there is no dust purification in the furnace, the reaction speed is fast, and the cost is reduced, which is a new way in the steelmaking process.(5) The useful metal oxides are restored to metals that are absorbed in the steel, increasing the loss of molten steel and increasing the output.(6) The heat energy generated when the silicon carbide element oxidizes can increase the amount of electricity used and prolong the operation work.(7) In the process of consuming manganese steel and chromium steel, the loss of manganese and chromium can be increased.You can contact me if you need toEmail: joanna@aykxgj.com +8616638320060