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1·Green sand casting casting clay weight from a few kilograms until decades kilograms, machine tool lathe bed and clay dry type of casting production can be weighed dozens of tons.

粘土湿型砂铸造的铸件重量可从几公斤直到几十公斤，机床床身而粘土干型生产的铸件可重达几十吨。

2·The manufacturing method, dynamic characteristics analysis and the comparison with casting machine bed are described in the paper.

介绍了聚合物混凝土机床床身的制造方法、 动态特性，以及与铸铁机床床身的优劣比较与分析。

3·Based on the casting process of bed, the actual lathe work condition, stiff and inherent frequency, we discuss feasibility of each plan.

依据床身的铸造工艺、车床的实际工作状况、刚度和固有频率等论证每个减重方案的可行性。

4·High stability: professional casting lathe bed. forging beams.

高稳定：专业铸造床身，锻造横梁。

5·Hydraulic system in the bed to the lateral casting tank, the station platform for the relocation of station and button electronic hand wheel with the hoisting of heavy cancel button stations.

液压系统在床身外侧铸造接油槽，站台上设按钮站与外移式电子手轮配合，取消笨重悬挂按钮站。

6·The paper describes the building-up process of a large size rotary jet slip-casting pile by quick pore-forming in bulky iron slag layer and in river banks floated pebble bed.

阐述了在松散渣铁层及河岸漂卵石层中快速成孔，形成较大直径的旋喷注浆桩的过程。

7·For example is also a large machine tools such as casting production lathe bed, generally USES the method of cores modelling, don't make shape and sand box, in the pit of cores in;

例如同样是生产大型机床床身等铸件，一般采用组芯造型法，不制作模样和砂箱，在地坑中组芯；