证明水玻璃白云石砂的溃散性与铸件的大小、壁厚、浇注温度、吃砂量和打箱时间有关。
The collapsibility of the sodium silicate dolomite sand is controlled by the size, wall, pouring temperature, capacity for sand and draw time of the cast.
采用箱型截面的大型混凝土桥梁，其结构施工过程中浇注混凝土需要设置临时支撑结构。
Temporary structures are set up to support the formwork when a large concrete bridge with box-section is built.
通过对工具箱的塑件工艺分析，确定了直浇口浇注系统、推杆、顶板联合顶出的模具结构。
Through analyzing moulding technology of the toolbox, designed a injection mold with straight gate injection system, ejector rod and stripper plate united ejection mechanism.
综合考虑凝固、冷却、打箱、切除浇注系统和热处理影响建立数值模型，准确预测铸件在整个热加工工序中的变形。
Numerical model was established after considering solidification, shake out, clearing getting system and heat treatment to predict the casting deformation during hot working processes.
文章介绍了船舶主机齿轮箱在安装过程中，如何保证轴系校中要求和齿轮箱环氧树脂垫浇注工艺以及垫片及螺栓强度计算，可供同行借鉴。
This article introduces the requirements of aligning to the installation of gear case and construction process, calculating for sheets of epoxy resin chock for gear case on board.
并介绍了箱梁混凝土的浇注工艺及预应力施工的方法。
Concreting technology for the box girders and construction method for the prestressing system are dealt with as well.
箱形型钢内浇注混凝土不但可避免型钢屈曲破坏而且还可提高梁的极限荷载。
Concrete filled in the box shape steel can prevent the early failure of specimens due to the buckling of the box shape steel, and increase the ultimate load.
箱形型钢内浇注混凝土不但可避免型钢屈曲破坏而且还可提高梁的极限荷载。
Concrete filled in the box shape steel can prevent the early failure of specimens due to the buckling of the box shape steel, and increase the ultimate load.
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