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- Molding sand performance 型砂性能
- Describes some results of using rectorite for molding sand and mold coating. 介绍了用累托石粘土作型砂粘结剂和水基涂料悬浮剂的试验结果。
- And the effects of bentonite percentage and compactibility on elastic modulus of molding sand were experimentally st... 试验研究了膨润土含量和紧实率对型砂弹性模量值的影响。
- The resista nce decreases intensely when the slenderness ratio of the hot molding sand layer increases. 阻力随干砂层长细比的增加而急剧减小。
- It for consolidating molding sand, such as resin bonded sand, as well as tamping sand, such as clay sand or self hardening sand. 本机主要用于树脂砂造型时型砂的振实,也可用于粘土砂造型或自硬砂造型实砂型的振。
- Such a testing method is of practical sense in realization of molding sand testing and foundry production management and casting quality control. 该测试方法的应用对实现型砂性能检测、铸造生产管理和铸件质量控制具有现实意义。
- This machine is used for mixing and puddling powdery materials,such as fly ash，refrectory cement, molding sand, slag, gangue and building garbage,etc. 本机适合混合搅拌粉状物料。如：粉煤灰、耐火泥、型砂、炉渣、尾矿、建筑垃圾等。
- The coal dust is the main mold sand additive to prevent penetration/burn-in and improve the surface fineness. 煤粉是防止粘砂和改善表面光洁度的主要型砂加入物。
- The complete sets of equipment for preparing Clay-bonded Sand Selfuardening Sand and Sodium Silicate-bonded Sand and hot sand reclamation of Precoated Sand and rosin molding Sand. 铸造粘土砂、树脂砂、水玻璃砂处理成套设备及热法覆膜砂和树脂砂热法再生成套设备。
- The forsterite ore deposit in Yichang of Hubei Province, being one of the limited large ore deposits across the Mainland China, is used to produce molding sand. 宜昌镁橄榄石矿,是我国为数不多的大型矿床之一,用其矿石生产的镁橄缆石型砂。
- The practical molding sand analyses method were introduced.As regards the effective clay, carbonization matter, fused matter, quartz and matel constituent and moisture. 介绍了对有效粘土、碳素物、溶凝质、金属分、石英及水分的型砂组分分析方法,并推荐了型砂纯净度的计算方法。
- The results show that, when burying the box, the mould is standed and the molding sand is joined in batches in EPC casting, it can avoid effectively the deformation of the mould. 结果表明，在消失模铸造中，埋箱时将模样立放且分批加入干型砂，能有效地避免平板衬模样在埋箱过程中变形；
- For thermally reclaimed molding sand due to its low angularity and improved shape, more, larger area and stronger bonding-bridges are easily formed among sand grains. 热再生砂的角形系数降低,粒形得到了改善,砂粒之间更易形成较多、较大的粘结桥;
- Further,thixotropy and stress-relaxalion were observed during deformation of bentonite filmand the degree of their effect on the compaction of molding sand were estimated. 同时观察到，在其变形过程中有应力松弛及触变现象。文中讨论了它们在型砂紧实过程中可能起作用的程度。
- The effective cost dust content of molding sand should be determined according to time factors such as the quality of the coal dust, casting size and thickness, pouring temperature, lacing sand or unit sand, and so on. 决定型砂中的有效煤粉含量应根据煤粉质量的优劣、铸件大小和厚薄，浇注温度、面砂或单一砂等因素。
- Out of demand on developing market for high-quality mullite molding sand products, the tests on calcination of Huaibei coal-series hard kaolinite rock are done based on the process mineralogy study. 我国煤系硬质高岭岩资源丰富,出于开发高档精密铸造用莫来石型砂产品市场的需要,在工艺矿物学研究的基础上进行了淮北煤系硬质高岭岩煅烧试验研究。
- The performance truly exalted the audience. 演出确使观众情绪高昂。
- Based on the rheology and molding sand micro deformation, elastic modulus of molding sand was measured and investigated with the intelligent molding sand multi property tester developed by ourselves. 基于流变学和型砂微变形理论,用所研制的智能化型砂多项性能测试仪对型砂的弹性模量进行了测量研究。
- When the slenderness ratio is less than 1/2 or the hot compression stress is not bigger than the wet compression strength of the molding sand, the rat tail should never come into being. 当千砂层长细比小于1／2或热压应力不大于水分饱和凝聚区的湿压强度时，绝不可能产生鼠尾。
- Synopsis: A calculating method of clay distribution in molding sands by computer is developed. 本文提出了一种用微机研究型砂中粘土分布规律的方法。
