浇注

Castable can be directly used as prefabricated products.

浇注料也可做成预制件直接使用。

The properties and structure of MgO - C castable were studied. The graphite in castable was processedby three different methods.

本文用三种方法对石墨进行了改性处理，并研究了含这些处理石墨的镁炭浇注料的性能和组织结构。

At the particle size of magnesia fine in this experiment, the content of magnesia fine in the range of 4% to 12% has little effect on the rheology of the castable.

在实验的镁砂粉粒度下，镁砂粉含量（质量分数4%~12%）对浇注料的流变性影响较小。

The results show that under vibration conditions, the castable has characteristics of the Bingham model, with shear-thinning and thixotropic property.

研究结果表明：在振动条件下，全组分铝镁质振动浇注料具有Bingham流体的特征，并具有剪切稀化和正触变性。

Aim at protecting moulding introduced by small square billet via columniform nozzle,therefore the condition was researched in this paper by means of simulation, which willhelp productivity with improving the casting speed.

针对目前小方坯普遍采用保护浇注，使用直筒型水口，模拟了这种情况下结晶器内的流场以及传热凝固现象，为高效方坯连铸提供理论依据。

The author analyzed total oxygen content, nitrogen content in steel made by typical process and the inclusion composition, change rule, morphology and distribution qualitatively and quantitatively by image analyzer, big sample electrolysis, SEM and energy spectrum analysis. The results showed that final inclusion form was small granule MnS, calcium aluminate, a small quantity of silicate and lumpy Al2O3. By intensifying deoxidation alloying process control in converter, argon blowing and slagging control and desulphuration and calcium reduction operation in refining course and overall-protection casting, the oxygen content was reduced by 20% above averagely, nitrogen content was reduced by about 10% and the inclusion content was reduced by 30%.

通过全O、N分析，夹杂物图像分析仪、大样电解、扫描电镜及能谱分析，定性和定量分析了典型工艺钢种钢中全O、N含量和工序过程夹杂物的构成、变化规律及形态、分布，分析钢中最终夹杂物表现形式主要为小颗粒的MnS、铝酸钙、少量的硅酸盐和块状Al2O3，通过强化转炉脱氧合金化工艺控制、精炼过程吹氩与造渣控制及脱硫和钙处理操作、全程保护浇注，钢水中O含量平均降低20％以上，N含量降低10％左右，铸坯中夹杂物含量降低了30％。

This paper analyzes the principle of the LP-LFC process,presents the physical and mathematical models of mould filling of the new process. The patterns including window-plate, ladders cluster, electromotor frame and exhausting manifolds are poured using LP-LFC process with AZ91D alloy, and the mould filling course is tracked with electrode touch point method. Based on above tests and experiments,the casting defects including short runs, cold laps, trapped gas,metal penetration, and so on, were investigated. The appearance characteristics,birth causes and influence factors of above defects are discussed in the article,diagrammatize modes of the defects forming is also given, and the measures of reducing or avoiding defects are put forward.

本论文分析了低压消失模铸造技术的工艺原理，建立了低压消失模铸造过程中金属液充型的物理和数学模型；在各种工艺条件下浇注了薄板窗体、阶梯模样簇、电机外壳和发动机排气管四个典型的模样和产品，用电极触点法记录了镁合金低压消失模铸造的充型过程；试验研究了镁合金低压消失模铸造中出现的浇不足、冷隔、气孔、粘砂等典型缺陷，分析了这些缺陷的形貌特征、形成原因及影响因素，给出了缺陷形成过程的图解模型，提出了减少和消除缺陷的工艺措施。

A series of casting polyurethane elastomers were synthesized by using polyester polyols,4,4'-diphenylmethane diisocyanate,and chain extender mixture of 1,4-butanediol with trimethylolpropane.

用聚酯多元醇(PBA、PEA、PEPA、PCL)、4，4'-二苯基甲烷二异氰酸酯和混合扩链剂等原料合成了浇注型聚氨酯弹性体。

A kind of modified casting polyurethane by styrene and divinyl benzene with good adhesion with ethylene-propylene-diene monomerhas been prepared by one-step process, which can be cured at the room temperature.

采用苯乙烯、二乙烯基苯对聚氨酯进行了改性研究，利用一步法工艺，制备了与三元乙丙橡胶具有优良粘接性能的双组分室温固化的改性浇注胶。

Through survey carefully, we find that if depend on pouring velocity、structural shape of SEN entocoele、angle slope of outlet 、depth of infusion together to make the liquid steel in model revolution in an order flow then it can utilize this kind of energy completely.

通过仔细研究发现，只要依靠浸入式水口内腔结构形状、出口倾角、浸入深度以及浇注速度就可以使方坯连铸结晶器内钢水为旋转的涡流流动，把液态金属的流动动能利用起来。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。