Do you know the processing steps of silica sol precision casting?
1. The mold shall be made according to the requirements of the customer's engineering drawings. The mold shall be divided into left and right cavities. It shall be completed according to the process flow of milling, turning and planing. The dent appearance of the mold shall be consistent with the half of the product. Since wax molds are mainly used for industrial production of wax profiled plates, we should choose aluminum alloy materials with low strength, low regulations, low price, slightly lighter net weight and low melting point as molds.
2. After selecting the aluminum alloy material, you can use this aluminum alloy profile to produce a large number of wax solid core models for industrial production. Generally, only one rough embryo can be produced from an industrial wax solid core mold.
3. After the silica sol investment casting mold is completed, it is necessary to adjust the capacity around the wax mold. After removing the superfluous things on the surface, it is necessary to stick a single wax mold to the prepared mold head in advance.
4. Apply industrial glue to the material pipe that has been glued with several wax models, and then spray a layer of fireproof and heat-resistant silica sand evenly. This kind of sand particles is not very fine, which can ensure that the final hair embryo looks smooth when it goes out.
5. And put the wax mold in the industrial workshop where we all set the indoor temperature for air drying, of course, but it should not harm the internal structure of military silicon sol precision casting. Of course, the time of single air drying will depend on the complexity of the mold interior. Generally, the time of one air drying is more than 5-8 hours.
6. After the wax mold is dried, another layer of industrial glue must be applied on the surface of the wax mold, and two layers of sand must be applied. The second layer of sand will be larger and thicker than the first layer of sand particles. After touching the second layer of sand, it is the same as the first layer, and then it is air dried
7. After the second layer of sand is naturally air dried, the third layer, the fourth layer and the fifth layer of sand blasting shall be carried out successively. Requirements for sandblasting: We should adjust the corresponding sandblasting frequency according to the commodity surface regulations and volume dimensions. Generally, the number of sandblasting will be about 3-7. The particle size of each sandblasting is also different. The sand particles of each process flow are thicker than the previous one, and the air drying time is also different. Generally, a complete wax mold can be sanded for more than 3-4 days.
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+86-15771805138
E-mail:zhiye@zy-casting.com
ycn@zy-casting.com
Website:www.zy-casting.com
Address: Xiachen Industrial Zone, ChunhuTown, Fenghua District, Ningbo CityZhejiang Province,China-315538
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