The addition of the mixture of nano-sio2 and silica fume powders can improve compactability, uniformity and strength. 纳米SiO2与硅灰组成的复合粉体应用于水泥基中可以增加材料的致密性,提高均匀性,并提高其强度。
Research and Application for Molding Sand Compactability Online Control System 型砂紧实率在线控制装置的研究及应用
Thus, compactability, percentage of moisture, sand temperature, split strength and permeability have been chosen as the testing items in this paper, as they not only reflect the change of molding sand compositions, but also are suitable for on-line testing. 为此,常规试验中既能反映型砂成分变化又适于在线快速检测的紧实率、水分、砂温、透气性与壁裂强度五性能被选作为在线检测项目。
The results of the test can be verified the series of technology for high dropping steel pipe concrete with self compactability is available and reliable. 从模拟高抛试验的检测结果可以证明,本文提出的研制高抛免振捣自密实混凝土的一整套技术是切实可行的。
A new molding process for producing ferrite magnet-warm compaction was investigated in order to improve compactability and expand application field of ferrite materials. 为了改进铁氧体磁性材料的成形性,拓宽其应用领域,研究了一种介于干压成形与热压铸成形之间的新的铁氧体成形工艺&温压成形。
Test result shows that the control error of molding sand compactability of this apparatus retains in the range of ± 2.6%. 试验结果表明,该装置的型砂紧实率控制误差保持在±2.6%以内。
Research on the Method and Device for Fast Testing Permeability and Compactability of Green Sand and Compaction of Mould 湿型砂透气性、紧实率及铸型紧实度快速测定方法与装置研究
Sand pebble soil was distributed more and widely in Sichuan region, having properties of compactability, high shear strength, difficult to liquefaction and so on. It is got in the construction engineering extensively. 砂卵石土在四川地区有着较广的分布,因其具有压实性好,抗剪强度高,地震作用下不易液化等优良工程特性,在建筑工程中得到广泛应用。
The measuring method of sand compactability in laboratory is analyzed, and a fast measuring method is designed, and the intelligent instrument for fast measuring sand compactability are developed. 分析了铸造行业型砂紧实率现有测试方法,提出了机电一体化的型砂紧实率快速智能测试方法,并据此研制成功了便携式型砂紧实率快速智能测试仪。
In the construction process of cement stabilized macadam which belongs to framework dense structure, adding additives to improve compactability can be extended. 因此,在骨架密实结构的水泥稳定碎石的施工过程中,使用掺加外加剂来改善其易密性的方法可以推广使用。
The green sand ingredient and compactability fast testing unit, made up of an automatic sampling machine and a testing slave, is developed to prepare a standard sand specimen and test conductive parameters automatically. 研制了由自动制样机构和测试下位机构成的湿型砂组分及紧实率快速测试单元,可完成标准砂样的制作和紧实率、导电参数的自动测量。
In this text, the possibility of additives ( fly ash and water reducing admixture) improving the compactability of cement stabilized macadam base is researched. 本文从掺加外加剂的角度,研究掺加外加剂(高效减水剂和粉煤灰)能否改善水泥稳定碎石基层的易密性。
At the present, clay green sand casting is still a popular method in the foundry. The compactability is the first choice in the foundry for testing in order to control the sand performance. 在粘土砂湿型铸造中,紧实率是湿型砂性能检测和控制的首选项目。