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30 Grit Aluminum Oxide Wholesale Suppliers Germany

When the thickness of the pattern is 7 ~ 30mm, the heating time is about 3 ~ 5min. Close the foam mold(60 grit aluminum oxide). When using large beads (e.g. EPS beads for packaging materials), there is always a gap smaller than the radius of the preformed beads on the parting surface(black aluminum oxide 70 grit abrasive media). For the above feeding methods, the best results can be obtained by feeding multiple guns at the same time.


30 Grit Aluminum Oxide Wholesale Suppliers Germany MOQ: 1 Ton! 19 Years Experience 30 Grit Aluminum Oxide Wholesale Supplier, 35,000m² Workshop Area, Free Samples, Fast Delivery!


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During feeding, compressed air can be discharged from the air plug and gap at the same time(emery abrasive), which is conducive to the rapid filling of the beads in the mold cavity; while when heated by steam, the air and condensate between the beads can be discharged from the pores and gaps at the same time(brown corundum abrasive). The results show that the expansion rate of the beads in the steamer is slow and the time is long.(30 grit aluminum oxide wholesale suppliers germany)


However, this method preheating the mold before feeding is to reduce the condensation of steam during bead foaming and shorten the foaming molding time(synthetic corundum). For the mold with simple cavity shape, the effect is better by using this method. Suction filling is a commonly used feeding method in China(220 grit aluminum oxide). The steam enters into the air chamber of the dynamic mould, and enters into the mould cavity through the air hole.


(30 grit aluminum oxide wholesale suppliers germany)The beads are filled with the cavity by the double effects of negative pressure traction and compressed air suction(aluminum oxide grit). As the foaming of the beads in the steaming cylinder is mainly the heating steam penetrating into the beads through the pores, there are both steam, air and condensate between the beads(aluminum oxide abrasive blasting grit), which requires sufficient time for the air and condensate to be discharged through the pores.


Open the air outlet of the air chamber of the fixed and movable mould(aluminum oxide abrasive), blow the preformed bubble beads into the mold cavity with the compressed air feeder through the feeding port of the mold. After the beads fill the whole mold cavity, the feeding mouth is plugged with the feeding plug(black aluminum oxide media). The air and condensed water between the beads are discharged from the solid mold cavity through the air hole on the mold wall.(30 grit aluminum oxide wholesale suppliers germany)


For example, after the cooling water is used by the gas chamber to cool the mold and the forming pattern, the required foam pattern or die can be obtained by demoulding(black silicon carbide). At present, there are three feeding methods commonly used in production, namely suction filling, pressure suction filling and negative pressure suction filling(aluminum oxide sandblasting media). Therefore, the feeding method is one of the important processes in the foaming process.


(30 grit aluminum oxide wholesale suppliers germany)However, for the mold with complex cavity shape, the bead can not completely fill the cavity(green silicon carbide). In this method, the positive pressure is applied to the beads during feeding, so that the beads can fill the mold cavity and have certain compactness. Due to the different heating methods(corundum sand), there are many methods for the foam molding of the pattern, including the steam cylinder method and the air chamber molding method.


In this method, the ordinary material gun - Venturi tube is used, and the beads are sucked into the mold cavity with compressed air(silicon carbide abrasive). Negative pressure suction filling is to add negative pressure at the back of the mold while filling and feeding. Therefore, in order to solve the problem of bead feeding of complex thin-walled pattern(silicon carbide grit), the method of multi gun feeding at the same time can be used.(30 grit aluminum oxide wholesale suppliers germany)


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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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