A comparison was made between the bottom gating system, middle level gating system, and step gating system. 对底注、中注及阶梯注三种浇注系统进行对比。
A novel concept is adopted to design gating system based on the bottom pouring system with stable filling, in which the ingate outlet velocity is as the bottleneck to control the flow velocity of liquid metal in whole gating system. 采用底注式平稳充型的方案来设计浇注系统,把液流在内浇道的出口速度作为限制瓶颈,它控制金属液在整个浇注系统的流动速度。
The Effects of the Partial Super Heating Caused by Bottom Gating System for the Solidification of Plate Casting 底注式浇注系统引起的局部过热对板铸件凝固过程的影响
Mold filling results of traditional top and new bottom gating system for conventional grey iron blade investment casting were compared. 以普通灰铸铁精密铸造叶片为例,把传统的顶注式浇注系统和新的底注式浇注系统的充型结果进行比较。
The results of these experiments show that in the condition of anti-gravity casting, lap gating system or lap gating combined with bottom gating system is a more practical pouring system for these castings. 结果表明,缝隙式浇注系统或缝隙式与底注式相结合的浇注系统是该类铸件比较理想的浇铸系统设计方式。
A Core-making Process Cured by Acetal Bottom Pouring Top Kiss Riser Gating System Casting Technology 乙缩醛工艺制芯的研究
Design of the Bottom Gating System for the Grinding Machine Body Based on Large Orifice Discharge Theory 运用大孔出流理论设计磨齿机床身底注式浇注系统
The mold filling sequence of multi-step gating system and the mold filling pattern of bottom gating system, as well as the influence of pouring velocity in bottom gating system on casting defects were studied. 考察了阶梯式浇注系统的充型顺序以及底注式浇注系统的充型形态,另外研究了底注式浇注系统的浇注速度对缺陷形成的影响。
Design of Bottom Shower Gating System Using Proportional Solidification Technology at Top Beam of Hydraulic Machine 运用均衡凝固理论设计液压机上横梁底雨淋式浇注系统
The experiment indicates that using bottom gating system with large orifice discharge in conjunction with installing cold iron and riser-head can realize the proportional solidification and then avoid shrinkage porosity ( hole), so that qualified frame castings is poured and the production rate is improved. 实践表明,运用大孔出流底注式浇注系统、冒口与冷铁配合的工艺,可以实现厚大件的均衡凝固,消除缩孔(松)缺陷,提高工艺出品率,浇出合格铸件。
To disclose the reasons of hot-tearing of camshaft produced by bottom gating system and vertical casting process, the temperature-field of the camshaft under the above technique conditions was tested. 为找出壳型填铁丸底注立浇工艺国产化捷达轿车凸轮轴生产中热裂缺陷产生的原因,对该工艺下凸轮轴的凝固温度场进行了测定。
The liquid metal flow during mould filling in bottom gating system and its influence on the casting quality are introduced emphatically. 着重介绍了液态金属在底注式浇注系统充填型腔时的流动,以及其对铸件质量的影响。
The bottom gating system is used to simulate counter-gravity condition to investigate the response of solidification of thin walled plate casting to the variation of gating systems by the method of temperature measurement. 采用底注式浇注系统模拟反重力铸造条件,通过实浇测温法,研究了不同浇注系统浇注时薄壁平板铸件的凝固规律。
The bottom gating system and higher pouring temperature were applied to improve the quality of the casting surface. 采用底注式浇注系统并适当提高浇注温度以改善表面质量;
This paper analyzes the characteristic of layer defect in the full mold casting and its forming mechanism, of all above factors the key of forming layer defect is section area of the internal gate in the bottom of the step gating system smaller than the down gate. 通过分析实型铸件分层缺陷的特征及其形成机理,认为在各种因素中,阶梯式浇注系统底层内浇道截面积小于直浇道截面积是分层缺陷形成的关键。
Investigation into Bottom Pencil Gating for Heavy Lathe Bed Casting 重型机床铸件底返雨淋浇注系统实验研究