Microstructure of liquid and solid diffusion bonding region of carbon steel-brass interlayer-stainless steel 碳钢黄铜中间层不锈钢液固相扩散结合区组织青藏地区青稞中VE的高效液相色谱测定
Bonding a finite stringer over a local cracked region in a plate has been testified to be able to retard efficiently the crack growth. 对于含裂壁板,采用劲条进行局部加强,可以阻止或延缓裂纹的扩展。
The pressure field of bonding region in explosive welding has been measured with a manganin pressure gauge. 用锰铜压力量计测得了爆炸焊接结合区的压力场。
The Ag/ Cu bimetallic laminates were prepared by roll bonding and diffusion treatment at different temperatures. The dependence of the bond properties under the repeatedly bonding condition on the matrix hardness of strip components and the microstructure in interface region was investigated. 在不同温度进行轧制复合及扩散处理制备了Ag/Cu层状复合材料,研究了反复弯曲载荷条件下材料结合性能与复层基体硬度及界面区域微观组织的关系。
Ir was not suitable to analyze hydrogen bonding by using NH stretching region because the features of this region were many band numbers, serious band overlap and large variable absorptivity coefficients with band frequency. 胺基区中谱带数目多、重叠严重、摩尔吸光系数随波数的变化较大,用以分析PU的氢键化并不理想。
The experimental results show that the bonding mechanics properties of lightweight concrete, whose coarse aggregate is made of haydite produced in Guangxi region is better than common concrete. 试验研究结果说明,以南宁市福民节能保温陶粒制品厂生产的陶粒作粗骨料的轻质混凝土,其粘结锚固性能不比普通混凝土差。
The Measurement of the Dynamic Welding Parameters and the Pressure Field in Bonding Region 管&板焊接参数和结合区压力场测量
Research on ultrasonic plastic welding mechanism and the fusion bonding behavior of plastic in melt region is focused in this paper, the goal is to improve mechanical strength of the welding joints. 本文着眼于超声波塑料焊接区域材料的熔接行为研究,以解释焊接机理、提高焊接强度为目标,以工程硬质PVC材料为研究对象。
The second is the large mismatch in thermal expansion coefficient of the two materials which lead to large residual stresses in bonding region. 二是两种材料的热膨胀系数相差极大,连接后会造成很大的内应力。
The Love displacement function was used to develop a 3-D elastic model to investigate the stress transference mechanism between the fibers and the matrix in the bonding region of reinforced concrete. 采用Love位移函数法分析了纤维拔出问题中粘结段的界面应力传递机制。
The experimental results show that, within the bonding temperature range of 610-620 ℃, the bonding region mainly consists of Al_3Ni and aluminium solid solution, and with increasing the bonding temperature and holding time results in the decrease of the amount of Al_3Ni in the joint. 结果表明,连接温度610~620℃时,连接区主要由Al3Ni和Ni在Al中固溶体组成,Al3Ni含量随连接温度升高、保温时间延长而减少;
It should be handled with discretion to study hydrogen bonding by using ether stretching region. 用醚键区来分析PU的氢键化要慎重。
At the bonding temperature 630 ℃, the bonding region mainly consists of alumina particle and aluminium solid solution, in which alumina particles segregate in the center of the joint. 连接温度630℃时,连接区主要由Al2O3颗粒和Ni在Al中固溶体组成,Al2O3颗粒偏聚于接头中心。
Measurement of Pressure Field of Bonding Region in Explosive Welding with Manganin Pressure Gauge 爆炸焊接结合区压力场的锰铜压力量计测量
Glycerol was adsorbed on hydroxyl groups in amorphous region of wood by hydrogen bonding after entering into the amorphous region, which was similar to water molecules. 甘油分子进入木材无定形区后与水分子相似,通过氢键结合吸附在木材无定形区的羟基上的。