Henan Longchuang Metallurgical Materials Co., Ltd

The products containing 4%, 5% or 5.5% magnesium belong to low magnesium spheroidizing agent, whose RE content is 1%-2%, mostly melted in the intermediate frequency furnace and and used for spheroidization of low sulfur liquid iron. It reflects a mild spheroidizing reaction and the spheroidizing elements are easy to absorb. The products containing 6% or 7% magnesium belong to medium magnesium spheroidizing agent, which is generally melted in the cupola furnace combined with electric furnace, or melted in the intermediate frequency furnace for the production of pearlite heat-resisting steel.

Characteristics: Strong spheroidizing ability, stable composition, stable reaction, and no decay.The product can be used as spheroidizing agent and nucleating agent.

Place the nucleating agent on top of the spheroidizing agent in the hot metal ladle,Pour into the hot metal ladle with the liquid iron during the tapping, and pour during the ladle shift,Metal-stream nucleation (the metal-stream nucleation effect is the best for 0.2-0.7mm specification).

Enhance the graphitization, greatly increase the amount of graphite nodules formed, refine the crystal particles, and improve the roundness of graphite nodules in the ductile iron.

It refers to the silicon barium alloy grinding powder used in the pipe mold, showing a sound effect on the surface treatment of castings.

Pipe powder is a ferrosilicon-based composite material with strictly controlled alloy elements and particle size. It can effectively reduce the degree of supercooling, inhibit the formation of carbide, slow down the decay time, and has a slight sensitivity to the casting size, showing a consistent nucleation effect.

It has been widely used in structural steel, tool steel, stainless heat-resistant steel, wear-resistant steel and other alloy steels. Manganese also desulfurizes and reduces the harmful effects of sulfur.

Ferromanganese is an alloy composed of iron and manganese, which is an important auxiliary material for cast iron and steelmaking. The fracture is dark gray with a blue-yellow flashing color (due to the existence of hard and brittle Mn3C in manganese), so it is hard and brittle.

Ferrochrome is an iron alloy composed of chromium and iron. It is an important alloying additive for steelmaking. According to different carbon content, ferrochrome can be divided into high-carbon ferrochrome (4-8% carbon content), medium-carbon ferrochrome (0.5-4% carbon content), low-carbon ferrochrome (0.15-0.50% carbon content), Micro-carbon ferrochrome (containing 0.06% carbon), ultra-micro-carbon ferrochrome (containing less than 0.03% carbon), and silicon-chromium alloy, ferrochromium nitride, etc.

When used in steel making, it can purify the form of steel inclusions, improve the castability of molten steel, improve the performance of steel, significantly increase the yield of alloys, reduce alloy consumption, and reduce steelmaking costs, with significant economic benefits.

It helps adjust and control the content of easily oxidized elements and trace elements, and can greatly increase the alloy yield, reduce smelting costs, shorten smelting time, and accurately control the composition.