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- Reducing expansion stress of the moulding sand and increasing wet tensile strength of moulding sand are the main measures to prevent scab defect. 防止夹砂缺陷的主要措施是降低型砂的膨胀应力和提高型砂的热湿拉强度。
- A new kind of moulding sand adhesive used for casting industry was prepared from distillation test residue of cottonseed oil fatty acid. 采用精制棉油脂肪酸蒸馏过程中排出的蒸馏残渣为原料,制备一种新型型砂铸造用粘结剂。
- It can crush waste sand packet of gummy sand,waterglass sand and babed mould sand,etc,and make them regenerate. 而且针对树脂砂,水玻璃砂等有机残留物(惰性膜)有搓磨破碎达到脱膜去膜的作用。
- When using in moulding sand, it can promote oriental solidification of castings and prevent burn-on and sand inclusion of castings, and improve roughness of castings. 在铸造生产中可以促进铸件的方向性凝固,防止粘砂、夹砂等铸造缺陷和改善铸件表面粗糙度。
- As soon as this need ceases, the natural bond is dissolved. 这种需要一旦停止,自然的联系也就解体。
- When the moulding technological test is carried out on the air impulse test moulding machine, the moulding sand employed is the sand used by Nanchang Diesel Factory for high-pressure moulding. 原文:利用气流冲击试验机进行造型工艺试验,使用的型砂为南昌柴油机厂高压造型用砂。
- The technical principle of the intelligent high speed tester for solidity of moulding sand is described briefly. The design, calibration and application results of the tester are introduced. 简述型砂紧实率快速智能测试仪的技术原理,介绍了测试仪的设计、定以及应用效果。
- This system can be used to test the properties of the moulding sand on line, such as sand compactability, green compressive strength, and sand temperature, and to control the actual. 该系统能够用于在线检测型砂的紧实率、湿压强度和砂温等性能,并且能够根据检测结果通过控制补加水量将型砂紧实率控制在设定的工艺范围之内。
- Natural bond orbital (NBO) analysis was performed to reveal the origin of the interaction between hosts and objects. 用自然键轨道(NBO)分析揭示了主客体相互作用的本质。
- The bond that binds the smugglers together is a rope of sand. 把走私犯联接起来的是条沙做的绳子,一碰就碎。
- The triaxial mechanics properties of a resin sand at elevated temperature are revealed through the recently developed trixaial apparatus for moulding sands. 利用新研制的型砂高温三轴测试手段,首次测定了常用树脂型砂在围压作用下的高温三轴力学性能。
- Theories of nature bond orbital(NBO)and atoms in molecules (AIM) were used to discuss bond nature and relative stabilities of such conformers. 利用自然键轨道理论(NBO)和分子中的原子理论(AIM)分析了这些异构体的成键特征、相对稳定性。
- The hope is to build composite tissues where the artificially grown cartilage naturally bonds with the body's. 现今的目标是希望能将人工培养的肌腱组织自然的附著到人体上。
- Preparation of a novel moulding sand adhesive 一种新型型砂粘结剂的制备
- The results of the natural bond orbital (NBO) analyses also show that donor to acceptor interactions make mainly contribution to the stabilities of complexes. NBO分析结果也说明在相互作用体系中,电子给体轨道与电子受体轨道之间的相互作用(即电荷转移相互作用)对于维持相互作用体系的稳定都起着非常重要的作用;
- The changes of atomic charge assignments have been investigated using Natural Bond Orbital (NBO) analysis and indicate some charges have transferred to the anion from the cation. 此外通过自然键轨道(NBO)分析阴阳离子间的电荷分布,发现阴阳离子间有电荷转移,且该C-H键上的氢原子电荷变化最为明显。
- Sodium alkyl sulfonate moulding sand 烷基磺酸钠型砂
- moulding sand covering on the permanent mold 金属型覆砂
- Method of controlled strain rate was used to measure failure of various moulding sands at elevated temperature, and all curves of stress-strain of moulding sands are obtained. 采用控制应变速率的方法测试了不同型砂高温下的破坏方式,从而获得了型砂全程应力-应变曲线;
- A mother naturally feels protective towards her children. 母亲对自己的孩子自然会悉心保护。