Analysis of the latest developments in the field of sodium silicate bonded sands is given. Emphasized is a specially modified sodium silicate in the ether type system. The materials are used to produce castings from various alloys including high-alloy steels. The composition ensures good shakeout capability, sand reclaimability, and no harmful emissions during sand preparation, core and mold making. ZAO Unirep-Service has organized the production of a continuous mixer featuring high speed of rotation of the mixing shaft with blades (730 rpm).
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机译：分析了硅酸钠粘结砂领域的最新发展。重点是在醚型体系中经过特殊改性的硅酸钠。该材料用于由各种合金（包括高合金钢）生产铸件。该组合物可确保良好的抗震能力，回砂性，并且在制砂，型芯和模具制造过程中不会产生有害排放。 ZAO Unirep-Service组织了一种连续搅拌机的生产，该搅拌机的特点是带叶片的搅拌轴高速旋转（730 rpm）。
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