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White Aluminum Oxide 220 Grit Factory Philippines

The structural characteristics of sand box(white aluminum oxide): the hub sand box is designed with spiral box reinforcement, which is close to the pattern, which plays a role in strengthening the sand mold. During the following pouring process, the negative pressure will change, and the negative pressure will decrease after pouring(brown fused alumina 95%). The volume of the shaker depends on the geometry of the casting. The sand runs on the cooling bed like water flow.


White Aluminum Oxide 220 Grit Factory Philippines MOQ: 1 Ton! 19 Years Experience White Aluminum Oxide 220 Grit Factory, 35,000m² Workshop Area, Free Samples, Fast Delivery!


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A dust removal pipeline is installed at the top of the cooling bed to pump away the wind dust at any time, so that the treated sand can be purified(refractory grade black silicon carbide). It can resist the influence of expansion force during solidification of nodular cast iron, and avoid dimensional deviation and internal shrinkage caused by mold wall movement. Improve the copy ability and make the casting outline clearer(brown fused alumina mesh size F22). Pouring under seal improves environment.


(white aluminum oxide 220 grit factory philippines)If the casting is small, the negative pressure can be lower(white fused alumina), if the weight is large or more castings can be higher, the top injection can be higher, and the wall thickness or instantaneous gas generation can be slightly higher. When pouring, the frame which automatically places the gate cup is pressed on the surface of sand layer by the hydraulic elevator(black fused alumina factory). The negative pressure system equipment is shown in Figure 4-9(especially ductile iron). 


It is beneficial to reduce the surface defects of castings by speeding up the exhaust velocity and volume(brown fused alumina size sand), reducing the interface air pressure, speeding up the advancing speed of metal front and improving the filling ability. Pipeline (connecting the above parts of the equipment to form a complete negative pressure system) and distributor (for connecting special sand box during pouring)(brown aluminum oxide 20 grit), which plays the role of pressing iron.(white aluminum oxide 220 grit factory philippines)


If the shell formed by solidification of casting is enough to keep the casting forming, the air extraction shall be stopped when the casting is formed(white corundum). It shall be determined according to the wall thickness, generally about 5min. In order to speed up the solidification cooling speed, the negative pressure can be prolonged(white corundum 320 mesh). The function of negative pressure: compact the dry sand to prevent sand washing, collapse and mold wall movement.


(white aluminum oxide 220 grit factory philippines)After the sand is used for a period of time, the coating chips and dust will accumulate, which should be cleaned up(pink corundum). Generally, sieving and washing are the most effective methods. When dry sand is poured, the temperature must be reduced to below 50 degrees after being used. If too high, the foam pattern will soften and deform(pink fused alumina factory). After the dry sand is used, the loss on ignition is an important parameter of dry sand performance.


The dry sand to be tested should be a single sieve because organic matter tends to concentrate on small sand particles(black corundum). The accumulation of hydrocarbons on dry sand with small particle size is obvious, and these fine particles must be removed to reduce its harm. The sand leaked from the sand leakage device passes through the vibration conveyor(white aluminum oxide 150 mesh). The sand flows forward and cools at the same time. The sand is transported to the sand inlet of No. 1 elevator.(white aluminum oxide 220 grit factory philippines)


After reaching the minimum value, it starts to rise again, and finally returns to the initial value(brown fused alumina price). The lowest point of negative pressure drop in the pouring process should not be lower than (cast iron) 100 ~ 200mmhg. The No.1 hoist lifts the sand to the sand storage tower, and water supply the cooling bed to cool the sand again(brown fused alumina mesh size F20). The water cooling bed is full of water pipes. The bottom of the cooling bed is blown by a fan to quickly dissipate heat.


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Brown Fused Alumina And White Fused Alumina MOQ: 1 Ton! 19 Years Manufacturing Exprience, 35,000m² Workshop Area, Factory Price, Free Samples, Fast Delivery!

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