铸

The quality of the continuous casting slabs is very important to the production of the continuous casting machine and the developm...

连铸坯的质量对连铸生产和连铸技术的发展是至关重要的问题。

The quality of the continuous casting slabs is very important to the production of the continuous casting machine and the development of continuous casting technology.

连铸坯的质量对连铸生产和连铸技术的发展是至关重要的问题。

The flow status of liquid metal in the sand box of group casting was discussed according to the fluid mechanics and heat transfer theory. Not only does the appearance of vying liquid metal happen when group casting between the big and small castings, identical castings in the multiple gates system appear too, even one casting.

运用流体力学、传热学原理，分析群铸时液态金属在各型腔内的流动情况，揭示出争铁液现象不仅在大小件混铸时发生，在多个内浇道浇注系统中群铸相同铸件，甚至仅一个铸件仍存在这一现象。

A mathematical model of the direct chill casting process for superlight Mg-Li alloy (LA141) slab has been developed using the finite differential method. Thermal boundary conditions including primary and secondary cooling conditions, have been selected based on knowledges of the physical process and the literatures. The variations of heat transfer coefficient between slab and dummy block interface resulting from the deformation of the slab have been considered.

中文摘要：运用有限差分法，对超轻Mg-Li合金（LA141）板坯直冷连铸过程温度场进行数值模拟，根据实际过程的物理现象以及文献资料确定包括一冷区、二冷区在内的边界条件，并且考虑底模与铸坯之间随着铸坯的变形而引起的换热系数的变化。

A self-made vacuum melting and argon shield continuous unidirectional solidification equipment was used to produce copper tube with continuous columnar structure.

采用自行研制的真空熔炼、氩气保护连续定向凝固设备制备出具有连续柱状晶组织的铜管铸坯，分析了铜管铸坯生产中熔体温度、连铸速度、冷却水量，结晶器等对其的影响。

By means of high speed gas stream compound with coaxial cutting gas for pulsed Nd:YAG laser on cutting of ceramics,the technological parameters affected on the thickness of re cast layer and the exiting of crack in re cast layer were studied.

针对激光切割陶瓷产生的重铸层和裂纹，设计了超音速喷嘴，采用侧吹高速辅助气流与同轴切割气流复合技术，研究了激光加工工艺参数对重铸层及裂纹的影响规律，开发了获得最小重铸层厚度和裂纹长度的高效率激光切割方

Successive steps include adding a concentrated heat reversible gel solution (5) to the flask to cover the critical pattern surfaces (13), and cooling the gel solution to form an elastic solid gel mold (7). The gel mold (7) has critical gel mold surfaces inverse to the critical pattern surfaces.

接下来的步骤包括向烧瓶中加入一个高浓度热可逆凝胶溶液（5）覆盖型面（13），和将凝胶溶液冷却形成一个弹性的固体凝胶铸型（7），凝胶铸型（7）具有与模样型面相反的凝胶铸型型面。

The model has better application value for ROKOP continuous caster as well as other kinds of casters.

该数学模型对ROKOP型铸机和其它类型铸机的连铸具有较高的参考价值。

Main products: Railway Cars (Top Open Freight Wagon and Tank Wagon Series) and Spare parts of Castings and Forgings, Various container lashing equipments for cars and ships, Various high quality Castings and Forgings, etc.

产品/Product：该厂是中国船舶工业在西南地区的铸锻件生产基地，主要产品有：铁路车辆及其铸锻零配件，各类车船用集装箱绑扎件，各类高质量的铸锻件产品系列。

The No.3 Steel Making Plant of Jinan Steel has three CCMs. As the spec and quantity of the orders do not match, it must response inner and outer demands, fulfill orders and reduce the frequences of slab cross section change.

摘 要 济钢第三炼钢厂有3台铸机，由于订单之间规格和数量的不匹配，需要保障内外需求和订单交付并减少铸机更换铸坯断面的次数。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了