凝固

Zirconia/graphite compound mold core was prepared by the coating, in which the silicon sol was used as binder and zirconia was used as refractory materials. The application feasibility of metal particles as a coolant in the solidification process was studied, and the application of metal particles as subsidiary coolant in the liquid metal cooling of directional solidification were analyzed and studied in this investigation. The conclusions can be drawn as follows: 1 The zireonia/graphite compound cores fabricated by brushing coating which was prepared by making silicon sol agglutinated zirconia as a refractory material were casteded at 800℃and 1000℃respectively, and the results show that the strength of the mold core is strong enough to meet the requirement of practical casting.

本文研究了以硅溶胶为粘结剂，氧化锆为耐火材料来制备氧化锆／石墨复合型芯的制备工艺；并分析了金属颗粒作为冷却剂在金属凝固过程中应用的可行性、金属颗粒的冷却能力以及金属颗粒作为辅助冷却剂在定向凝固的液态金属冷却法中的应用，得出以下结论：(1)以硅溶胶为粘结剂，氧化锆为耐火材料来配制涂料，采用刷涂石墨型芯的方法来制备的氧化锆／石墨复合型芯经800℃和1000℃实际浇铸实验，结果证明型芯的强度足够满足实际浇铸要求。

Because this product coagulates after the mechanical strength to be high, should reduce a rubber thickness to speed up the coagulation as far as possible the time and the reduced rubber waste.

由于本产品凝固后的机械强度较高，应尽量减少胶点的厚度，以免造成浪费，同时更能加快凝固的速度。

The microstructures of Fe40Ni40P14B6 alloy solidified at different undercooling have been obtained by use of fluxing technique and holding at different temperatures.

采用玻璃包覆法提纯和在不同温度下保温，获得了Fe40Ni40P14B6合金熔体的凝固组织，研究了过冷度对凝固组织的影响。

It is found that the porosities are not only dependent on gas entrapment but also on early solidification of gates and pressure transfer in the solidification process.

结果表明，孔洞的产生不仅与气体卷入密切相关，而且与凝固过程浇道的早期凝固及压力传递有关。

Methods Treatment group: The varicosities of greater saphenous vein were treated by microwave coagulation intracavitary treatment together with injection coagulation treatment of its tributaries.

治疗组采用微波血管腔内凝固封闭大隐静脉结合属支曲张静脉穿刺凝固方法。

The coagulating bath contains sulfuric acid, mainly to neutralize the alkali viscose solution, and salts which are principally sodium sulfate and a very small amount of zinc sulfate which aids in the precipitation process.

凝固浴中含有的硫酸，主要用来中和碱性的粘胶溶液，其主要成分为硫酸钠的盐类以及凝固过程中加入的少量硫酸锌。

The coagulating bath contains sulfuric acid, mainly to neutralize the alkali viscose solution, and salts which are principally sodium sulfate and a very small amount of zinc sulfate which aids in the precipitation process.

凝固浴中含有硫酸，主要用来中和碱性的粘胶溶液，其主要成分为硫酸钠的盐类以及凝固过程中加入的少量硫酸锌。

2Radiofrequency ablation with anchor-shaped electrodes could induce coagulation necrosis of most of the VX2 nodules in rabbit lung, and could induce apoptosis of tumor cells; The course of pathological changes of ablated area was surrounded by organization, the ablated area would be encapsulated by fibrosis tissue.

2采用锚状电极RFA治疗兔肺内VX2肿瘤，其基本病理改变为：绝大多数肿瘤病灶的凝固性坏死，进一步的改变为凝固性坏死区被机化包裹，可有钙盐沉积；RFA可诱导肿瘤细胞凋亡。

Based on solidification theory and analysis of process of Aluminum alloy Direct Chill casting, the control system of DC casting for big size billet has been designed. For improving the quality of billet-optimized control strategy of cooling water must be determined to eliminate the instability of the traditional feedforward control, PID control and cascade control have been introduced.

通过对铝合金DC铸造工艺过程的分析，建立了铝合金DC铸造的控制系统；在分析DC铸造铸锭结晶凝固原理的基础上，完成了冷却水量自动控制的系统设计，并进行了控制策略的选择；基于对铝合金直接水冷铸造，DC凝固原理和工艺过程的分析，本文提出了大尺寸铝合金圆锭铸造的控制系统设计方案。

Based on analysis to solidification process, it was proposed a new kind of hot cracking theory which was called theory about solidification contraction and its compensation.

本文针对空心叶片类铸件薄壁和在定向凝固过程中横向收缩受阻的特点，设计了定向凝固合金热裂倾向性薄板工字型精铸试样，并提出了。。。

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