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Bright carbon forms a deposited film on the surface of the sand mold on the melt surface. The relatively thick bright carbon film layer, especially on the surface of the sand core, is mainly due to the gas pressure generated by the pyrolysis...

Ferromanganese is an ferroalloy composed of manganese and iron, which also contains small amounts of other elements such as carbon, silicon, and phosphorus.The grades of ferromanganese are divided according to the carbon content of the alloy...

Silicomanganese alloy is produced in the ore heat stove, reduction of manganese ore (including manganese oxide) and silica with carbon to get, it is an alloy which consist of manganese, silicon, iron and small amounts of carbon and other el...

Due to their different production methods,crystallization laws,casting properties and other casting alloys,ductile iron often has some unique defects. Research shows that almost all defects of ductile iron are related to spheroidizing agent....

In the production of ductile iron, the content of ferrite can be improved by adjusting the different aspects as following: 1.Chemical Composition...

Boron has a strong inhibitory effect on the graphitization of cast iron. Adding 0.1-0.4% of boron iron can increase the whiteness of cast iron by 3-10mm. ...

In the iron-copper system, copper can be dissolved in a large concentration of liquid solid solutions with the iron solution. At room temperature, the solubility of copper in iron is small. Whether it is liquid or solid state, copper has a...

Metal fluids are thermally, physically, chemically, and mechanical effects during filling iron mold and solidification. Due to these effects, castings may produce cast defects such as sandwich, sand eye, air pores,etc....

Synthetic cast iron means that the charge does not use pig iron, and is mainly composed of scrap steel, reclaimed charge, and iron filings. The recarburizer is added in the smelting to obtain the required carbon from the molten iron, and it...

Foundry is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold. After cooling, solidification, and cleaning, a foundry (part or blank) with a predetermined shape, size and performance......

Various defects will appear in the production process of castings, which affect the quality of the castings, and even make the castings directly scrapped. Porosity are relatively common among them. ...

Last week share some details of common casting defects, today we Anyang Huatuo Metallurgy Co., Ltd share more details as following: 7.Iron beans:There are small iron beads in the stomata. (1) The molding sand is wet, and the inner runner is...