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1 Single basalt material The chemical composition of Penglai basalt is very close to castbasalt,so it needn’t to add any auxiliary material to produce a good performance, compound standard cast basalt manufacture. Single basalt material not only simplifies the production process, it is important to ensure the quality of magma. In the production of burdening，Though the matching of main ingredient and auxiliary material careful measurement，they are in different granularity. In lay-off process, because of the blanking speed difference, it causes material content in the molten magma is not uniform, so the chemical composition of the magma is not stable. 2 Cold melt Melting temperature is from 1500℃ of proportion principle down to 1300℃, decline 200℃。 3 Rapid crystallization Magma inside the pipe centrifuge uses 4 minutes to complete crystal shape, Magma in mould uses 2 minutes to complete crystallization process, then release for annealing.It shorten 2 minutes than crystallization of ingredients production. Penglai basalt contains about 14% of FeO and Fe2O3, they can generate magnetite crystal nucleus in weak oxidizing atmosphere. Low temperature melting system keep small primary mineral particles are not melt, these particles have good " memory of crystallization”. In the forming process, the crystallization center have played an important role in promoting crystallization.
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