The deposition efficiency of welding wires metal, microstructure and mechanical properties of welded joints were studied. 研究了交流和直流反接两种型式下焊丝金属熔敷率、焊接接头金属组织以及接头的力学性能。
The deposition of graphite dust in heat gas duct of 10MW high temperature gas-cooled reactor ( HTR-10) was analyzed. The deposition efficiency of graphite dust in heat gas duct was obtained, which was necessary to estimate the radioactivity activity at the surface of heat gas duct. 分析了10MW高温气冷堆(HTR-10)中的石墨粉尘在热气导管中的沉积情况,得到了石墨粉尘在热气导管中的沉积率。
The deposition efficiency is over 90%. 原料的沉积效率已超过90%。
Oblique-flow precipitating tank has many advantages such as low floor space and high deposition efficiency but its application is quite limited because of its two shortcomings: difficult to eject sludge and hard to bear the impact load. 斜流式沉淀池具有占地面积小、沉淀效率高的优点,但也存在排泥较困难、不耐冲击负荷等弱点,这制约了其在废水处理中的应用。
Boron carbide coatings were deposited onto stainless steel via vacuum plasma spraying ( VPS), and then their phase composition, microstructure, deposition efficiency, bonding strength and laser irradiation resistance were examined. 采用真空等离子喷涂技术,在不锈钢基体上制备碳化硼(B4C)涂层,并对涂层的组成、结构、沉积效率、结合强度以及抗激光辐照性能进行了表征。
Study on deposition efficiency of sectioned surface discharge 分段表面放电沉积效率研究
Both change and particularly minimize the interaction of the hot gases with the injected spray particles, which influences the deposition efficiency, the coating structure, composition and properties. Are there technical or commercial limits? 气流和喷涂粒子之间的相互作用将直接对喷涂粉末的沉积效率、涂层结构、组成和性能产生影响。
Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins 溢流槽对定期冲洗式沉沙池沉淀效率的影响分析研究
The deposition efficiency of W coating was greatly dependent on the spraying power and was low at a spraying power below 40 kW. 喷涂功率对钨粉的沉积效率影响较大,喷涂功率低于40kW以下时钨粉的沉积效率极低;
Experimental Analysis on the Effects of Flame Spraying Parameters on Powder Deposition Efficiency 喷涂参数对粉末沉积率影响的试验分析
In the process, fin has high deposition efficiency and good heat transfer performance. 翅片的焊着率高、传热性能好。
The results indicate that with the increment of diameter of electrode, the gravity coefficient of coating, deposition efficiency and Mn, Si content in the deposited metal increment, but the melting rate deposition rate decrease. 试验结果表明,焊条直径增加,焊条药皮重量系数、熔敷效率增加,熔化速度和熔敷速度降低;
Testing results show that the major factors affecting the deposition efficiency are the welding current, arc voltage and gas flow rate under the condition of same circuit inductance. 试验结果表明,在回路电感值不变的条件下,焊接电流、电弧电压和气体流量是影响熔敷效率的主要因素。
Catalytic isothermal chemical vapor infiltration fabrication of carbon/ carbon ( C/ C) composites was investigated by polarized light microscopy, SEM and XRD in order to speed up the deposition efficiency and to enhance the oxidation-resistance of the matrix carbon. 为了提高基体炭的沉积效率和抗氧化性能,采用常规化学气相渗透法催化制备C/C复合材料。
This paper introduces the testing method of deposition efficiency of CO_2 welding of bare wire. The results show that the major factors that influence deposition efficiency are welding current, arc voltage and gas flow rate under the conditions of same circuit inductance. 介绍实芯焊丝CO2焊的熔敷效率测试方法,试验结果表明,在回路电感值不变的条件下,焊接电流、电弧电压和气体流量是影响熔敷效率的主要因素。
Based on the optimum analysis on the technique parameters of oxyacetylene flame spraying and orthogonal test, this paper obtains a coating with satisfactory deposition efficiency, which provides a basis for the correct usage of the technology. 对氧乙炔火焰喷涂的工艺参数经试验优选分析,采用正交试验法得出沉积率较理想的涂层,为正确使用该项工艺提供依据。
The effects of coating density, adhesive strength of coating and graphite surface, deposition efficiency of powder, coating impurity content by spraying parameter were studied. 研究喷涂参数对涂层密度、结合强度、粉末沉积效率及涂层杂质含量的影响。
It is found that the energy deposition efficiency in the so-called "soft ionization" of FAB is significantly lower than that in the case of EI. Therefore, more information can be obtained in the molecular region. 可以看出,称为软电离的FAB,其能量沉积效率明显低于EI,因而可以得到更强的分子区信息。
Welding is a new kind of high deposition efficiency welding technology, and the article present its main characteristics and advantages. 焊工艺是一种新型的高效、高熔敷率的气体保护焊工艺,本文介绍了它的主要特点及优越性。
Wire deposition rates consist of wire molten rates and deposition efficiency. 所谓焊丝熔敷率,包括焊丝熔化速度与熔敷效率两层意思。
The result showed that the deposition efficiency of grain was increased evidently early and was decreased slowly afterward, and that pressure drop increased when inlet velocity of deposition chamber was increased. 结果表明:当入口气体速度由11m·s-1提高到17m·s-1时,沉降箱的压力损失随沉降箱入口风速的增加而增加,籽粒的沉降效率先明显增加,而后减小;
The MIG welding is a traditional and efficient welding method. The wire melting speed is very high because of the high current density of the wire and arc, thus the deposition efficiency is high and penetration and welding distortion is better. MIG焊接是一种常用的高效焊接方法,其焊丝和电弧的电流密度大,焊丝熔化速度快,对母材的熔敷效率高,母材熔深和焊缝成型较好。
However, the arc power of TIG is limited because of current-carrying capacity of its welding electrodes is finitude, and the deposition efficiency is low. Particularly welding the middle thickness of the welded structure, the need to open and multi-layer welding groove. 但是TIG焊由于其电极的载流能力有限,电弧功率受到限制,熔敷速度低,尤其是中等厚度的焊接结构,需要开坡口和多层焊。
The optimal process parameters of the aluminum alloy electrorefining experiment were get through the relationship between concentration ratio, current density and electrolytic time with parameters of electrolytic performance evaluation, including current efficiency, deposition efficiency and energy consumption. 通过研究本电解实验的阴极电流效率、沉积效率和能耗这三个电解性能评价参数和溶液配比、电流密度和电解时间的关系,得出了它们电解精炼实验的最佳工艺参数。
Plasma Enhanced Atomic Layer Deposition ( PEALD) is based on traditional ALD equipment and increase a RF function, it can make the less active precursor sources of ionization ion. It can get a faster growth rate and improve deposition efficiency. 等离子体增强原子层沉积技术(PEALD)是在传统的ALD设备基础上增加了射频产生等离子体的功能,可以使活性较低的前驱体源电离成离子,增快生长速度,提高沉积效率。
And the performance index of the Ni/ Cr 80/ 20 coating was detected, including thickness, hardness, bonding strength, deposition efficiency, porosity and metallographic analysis. 对Ni/Cr80/20涂层的各项性能指标进行了检测,包括厚度、硬度、结合强度、沉积效率、孔隙率以及金相分析。
According to national standard and self-assessment test platform, including the arc of the electrode, breaking arc length, slag rate, forming quality, spatter, the electrode melting coefficient of determination and deposition efficiency. 按国家标准和自制试验平台评定焊条的性能,包括焊条的再引弧性,断弧长度,脱渣率,成型质量与飞溅,并测定焊条的熔化系数,熔敷效率。
It is also found that coverage on the substrate and the deposition efficiency of depositing films will increase, as extending the deposition adsorption and reaction time. 同时发现延长初期反应吸附时间会增加初期沉积覆盖率并提高沉积效率。
The deposition efficiency of zigzag flow channel is mainly impacted by air flow rate and the size of the zigzag flow channel. 空气流通量和管道尺寸是影响颗粒沉积效率的主要因素。