功率超声

ANSYS在功率超声领域中的应用

Application of ANSYS in Power Ultrasound

Pb-Sn合金在功率超声场中的凝固过程研究

Effect of Power Ultrasound on the Solidification Process of Pb-Sn Alloy

功率超声在电沉积Ni/纳米Al2O3复合镀层中应用

Study of applying high-intensity ultrasonic in electrodepositing Ni / nano Al_2O_3 composite coating

在上述实验的基础上，探讨了功率超声对Al-Si合金溶质偏析的抑制效应。

The influence of power ultrasonic on solute segregation of Al-Si alloy is discussed .

B2功率超声振动系统的电声效率测量

Measurement of electro acoustical efficiency for power ultrasonic vibration system

功率超声法研究了沉淀温度和功率大小的影响，结果表明较低沉淀温度浙江工业大学硕士学位论文和大功率超声波有利于催化剂中CuO和Zno组分的分散和活性的提高。

It was found that lower precipitation temperature and higher power is favorable to activity of the catalysts prepared by ultrasound method .

功率超声对Pb-Sn合金凝固行为的影响

Effect of Power Ultrasound on Solidifying Behavior of Pb-Sn Alloy

B4用染色法记录液体中大功率超声场的分布

Recording of high power ultrasonic field distribution in a liquid with dyeing method

功率超声细化Sn-Sb合金凝固组织工艺研究

Investigation on Processing About Power Ultrasonic Refinement for Solidification Structure of Sn-Sb Alloy

本文介绍了功率超声降解有机污染物的原理：声空化理论及功率超声降解过程中导致有机物分解的三个主要机理，即高温热解机理、OH自由基氧化机理以及超临界水氧化机理。

The paper introduces the principle and the main mechanism of ultrasonic degradation for organic contaminants , such as Cavitation theory ( the basic theory ), Pyrolysis mechanism , OH radical oxidation mechanism and Supercritical water oxidation mechanism .

实验结果表明：在功率超声作用下，铸坯的凝固组织得到了细化，Si元素在α（Al）基体中的固溶度及其分布的均匀性得到了提高，溶质偏析得到了抑制。

Experimental results show that under high-intensity ultrasonication the microstructure is refined , the solid solubility and the uniformity of the distribution of Si in α ( Al ) are improved and the solute segregation is suppressed .

研究了超声振动对铝硅合金的变质作用，结果表明：功率超声能提高液相形核率，抑制Si相长大；

The modifying action of ultrasonic vibration on Al Si alloys is studied . It is shown that high intensity ultrasonic wave can raise the nucleation rate of the liquid and can restrain the growth of Si ;

采用功率超声的新方法，研究了超声波功率、频率、声强、变幅杆直径、溶液初始pH值以及空化气体种类等因素对降解甲胺磷农药废水的影响。

A new method of ultrasonic irradiation was used to study the effects of such factors as ultrasonic power , ultrasonic frequency , ultrasonic intensity , probe diameter , initial pH value of solution and cavitating gases type on degradation of methamidophos pesticide wastewater .

研究了功率超声处理对ZL102铝硅合金凝固特性的影响。

The influence of side-introduced power ultrasonic treatment on the solidification characterization of ZL102 Al-Si alloy was discussed .

本文介绍了功率超声振动研磨外圆加工装置和加工原理，并结合对Al2O3陶瓷试件的研磨试验，分析了超声研磨中加工参数与试件材料去除率的关系。

This article introduced the devices and the machining principle of ultrasonic vibration cylindrical lapping , and , combining with the lapping experiments of Al 2O 3 ceramic samples , analysed the relationship between vibration lapping parameters and remove rate of ceramic samples .

研究了复合场（功率超声场和旋转电磁场复合）对A356合金凝固行为的影响。

The study was carried out to investigate the effect of compound field which is a combination of electromagnetic field and power ultrasonic field on solidification process of A356 alloy .

研究功率超声在纳米电沉积技术中的作用机理。电沉积Cr-SiC高耐磨复合镀层的研究

The mechanism of applications of high intensity ultrasonic in the nano composite electrodepositing was expatiated on the base of experiment . ELECTRODEPOSITING Cr-SiC COMPOSITE COATINGS

通过测定超声处理前后发酵液中核酸、蛋白质及1,6-二磷酸果糖（FDP）浓度的变化，研究了功率超声及有机溶剂对酵母细胞膜通透性的影响。

In this project , the effect of ultrasounding treatment with three sorts of organic solvents on yeast cell membrane permeability was studied , by measuring the concentration of nucleic acid , protein and fructose-1,6-diphosphate ( FDP ) before and after the treatment .

研究了功率超声作用下，直径为10mmAl-1%Si合金键合线水平连铸坯的微观组织形貌以及溶质元素在基体中的分布情况。

The influence of high-intensity ultrasound on the microstructure and the distribution of solute elements Si in α ( Al ) of Φ 10mm Al-1 % Si alloy bonding wire produced by horizontal continuous casting have been investigated .

本文根据差动变量器桥式电路补偿电学臂的原理，采用锁相环（PLL）及模拟乘法器等技术，进行功率超声设备频率振幅自动控制。

According to the principle of compensating a leg of circuit by a hybrid bridge circuit , a method for automatically controlling of the frequency and amplitude in a power ultrasonic equipment is proposed , in which the technologies of phase-locked loop ( PLL ) and analog multiplier are used .

理论分析认为当功率超声频率为22.3kHz时，能够发生空化效应的最大空化泡半径为1.02×10-4m，且随着超声功率的增加，空化泡数量增多。

Theoretical calculation indicates , when ultrasonic frequency is 22.3 kHz , the maximum radius of cavities is 1.02 × 10-4 m , and the number of cavities increases with the increase of ultrasonic power .

试验结果表明：在Pb-Sn合金凝固过程中导入功率超声，不仅显著细化了初生β相，使之均匀分布在基体上，而且细化了共晶组织（α+β）。

The results show that the transmission of power ultrasonic during solidification process of Pb-Sn alloy not only can greatly refine grains of the primary & phase and the growing dendrite , and disperse it homogeneously , but also refine eutectic ( a + B ) phase .

运用功率超声将平均粒径30nm的超细金属铁粉均匀分散到聚碳硅烷中，通过熔融纺丝、不熔化处理、烧结，制备出具有良好力学性能、电阻率连续可调的掺混型碳化硅陶瓷纤维。

Nano ferrum particle , average 30 um in diameter , was dispersed into polycarbosilane ( PC ) homogeneously by ultra-sonic method and subsequently mixed silicon carbide ceramic fiber , with good mechanic properties and continuous controllable resistivity , was prepared by melt spinning , curing treatment and sintering .

考虑到大功率超声应用中的非线性和吸收作用，本文从KZK方程和准线性条件出发，对于工作在共振频率下的这种阶梯圆盘，推导了它的一阶和二阶谐波声场计算方法。

After the nonlinear and absorption effect is taken into account in the applications where high power ultrasonic is involved , the first and second harmonic components of the sound field of stepped circular plate is analyzed , based on the KZK equation and quasi-linear condition .

功率超声珩磨缸套加工中谐振系统的试验研究

Study on the Vibration System of the Efficiency Ultrasonic Cylinder Honing

探索了单片机在功率超声中的应用。

Applications of single chip microcontroller in power ultrasonic are studied .

气介式弯曲振动功率超声复合换能器的振动特性研究

Vibrational characteristics of air - coupled high power ultrasonic compound transducer

功率超声雾化制备钛金属粉末的实验研究

Experimental Study of Ultrasonic Atomization Method for Manufactruing Titanic Metallic Powder

目的研究不同功率超声龈下刮治对根面的影响。

Objective To study the root surfaces following ultrasonic subgingival scaling .

功率超声对煤岩力学性质影响的试验研究

The Experimental Study of the Action Power Ultrasound to the Coal-Mass