碳化硅泡沫陶瓷过滤器siliconcarbideceramicfoamfilter

FCF-T Silicon Carbide Ceramic Foam Filter

SIC ceramic foam filter is specially for gray and ductile iron casting filtration,also it can be used for non-ferrous application.The filter's open pore structure was specially developed for the filtration of cast iron and prevents the ingress of slag,metal reaction products,inoculant residues or sand grains into the mold cavity.The inherently large surface area is well suited to intensive filtration and even finely distributed slag particles are retained both on the filter surface and in the filter structure.Such high filtration effectiveness,combined with a reduction in turbulence,often allows gating systems to be greatly simplified and reduced in size.The filters can be positioned vertically, horizontally,or diagonally in a suitably designed runner system.

Why use ceramic foam filters

-Simplify gating system and increase yield.

-Reduced impurities,inclusions and turbulence.

-Increased productivity with smaller and simpler gating systems.

-Improved quality,mechanical property and machinability.

Product f eatures

*Precise size.The control of size is processed from filter media sponge cutting to final sinter.

*High strength and free from loose debris.Special formula and technique adjustment together with good package is to make sure it prevent from debris either during transportation or molten metal pouring.

*Branded Main material.Branded filter media sponge with strictly inspection to make sure uniform hole with high porosity.Triple check on pores of sponge:before cutting,cut,sintered.

*High purity of raw materials,high refractory and good thermal shock resistance.

Size and porosities

Different sizes can be made upon customer request.

Length*width*height=(35-200)*(35-200)*(10-30)mm

With round,square and rectangle shape.

Filter size t olerance:olerance:±±(1-1-1.5)1.5)1.5)mm mm mm,need

,need to be confirmed or as per mon size:

37x37x12.5mm,40x40x11mm,40x40x15mm,50x50x15mm,50x50x22mm,55x55x15mm,60x60x15mm,60x60x22mm,75x50x22mm,75x75x22mm,100x75x22mm,100x100x22mm,150x150x22mm,200x200x30mm,D40x11mm,D40X22MM,D50X22MM,D60X22MM,D70X22MM,D80X22MM,D90X22MM,D100x22mm

Pore size:10PPI/20PPI/30PPI

Tolerance:±(1-2)PPI

Principle o f u sing f ilter

*Set the filters as close as possible of the casting.

*Use simple gating system without dirt trap (improve yield).

*The working area of filter should be 4–6times of the section of chocked flow in gating system to make sure that the pouring speed is not affected.

*Select the proper filters according to types of metal and pouring temperature.*The higher porosity,the better filtration.

How t o c hoose p orosity o f f ilter

The higher porosity,the better filtration.But too high porosity leads to low speed rate of metal.This is especially important for SG ually our recommendation are as below ：*10ppi—for ductile iron,big grey iron,steel casting.

*20ppi—for grey iron,malleable cast-iron,non ferrous alloy casting.*30ppi—for grey and malleable cast-iron,non ferrous alloy casting.

Flow rate for good filtration (For 10ppi filters)

Grey iron ：2.0~4.0kg/cm2ØDuctile iron ：1.0~2.0kg/cm2ØAlloy iron ：0.5~1.0kg/cm2

Flow rate according to filter porosity.The porosity is affecting the flow rate.The flow rate will be reduced about 20%per every ten PPI of porosity.

Filter filtration rate and weight

Filtration capacity and flow rate of the ceramic foam filter are affected by the porosity of the filter,metal temperature,metal leanliness,melting and inoculation practices,alloy composition and pouring method.Below are the value for reference.