电阻焊接

In order to investigate the effect of contact resistance on nugget growth and heat source distribution, an axisymmetric two-dimensional finite element model was developed to simulate the spot welding of aluminum alloys.

为了研究铝合金点焊时接触电阻对点焊熔核形成和焊接热源分布的影响，本文采用二维轴对称模型，用有限元法对铝合金点焊过程进行了数值模拟。

The reason for the change in their pitting corrosion resistance was studied with composition and microstructure analysis.

文章对电阻对焊接头性能变化的原因从化学成分和显微组织方面进行了分析。

Resistance welding and brazing possibly become the development trend.

电阻焊和钎焊有可能成为铝／铜焊接的发展方向。

Because the hand-welding, at the same time because of the flexibility of the phosphorus brass tablet poor, rather than later, how long it is easy to lose elasticity, resulting in the display with the host or bad power plug and have a greater contact resistance, will be working long hours in fever caused by a large number of virtual access, this will be reflected in the host to restart the black screen flicker or display.

因为手工焊接，同时因为采用的磷黄铜片弹性差，用不了多长时间就容易失去弹性，致使与主机或显示器的电源插头接触不良而产生较大的接触电阻，在长时间工作时就会大量发热而导致虚接，这时就会表现为主机重新启动或显示器黑屏闪烁。

Even with resistive loads, the capacitance of a shielded connecting cable may cause relay welding.

即使对于电阻性负载，屏蔽电缆的电容也可能会导致继电器触点焊接。

The Company's advanced technology and equipment, detection means complete, currently has a large IF Elbow push system machine, large R bender, metal links extrusion hydraulic press, stainless steel elbow hydraulic extrusion machine, 2000T hydraulic press table big job and 1000T, 500T, etc. Four-column hydraulic press and high-power resistance furnace heat treatment, shot blasting machine, such as noisy jet pipe production equipment, is equipped with a universal tensile testing machine, chemical analysis instruments, non-destructive testing equipment, spark photoelectric read the whole spectrum, such as test equipment and test equipment , the Company has a large number of pipe fittings for many years engaged in the manufacture of engineering and technical personnel and skilled workers, with process design, manufacturing, welding, heat treatment, chemical cleaning, and product inspection and testing of the ability to undertake a variety of bend of high, medium , low pressure and high temperature and low-temperature pipe fittings manufacturing business.

本公司工艺装备先进，检测手段齐全，目前拥有大型中频弯头推制机、大R弯管机、金属三通挤压液压机、不锈钢弯头挤压液压机、2000T大工作台面液压机及1000T、500T等四柱液压机和大功率热处理电阻炉、喷吵抛丸机械等管件生产专用设备，配备了万能材料拉力试验机、化学分析仪器、无损检测仪器、火花光电全读光谱仪器等检验和试验设备，本公司有一大批多年从事管件制造的工程技术人员和技术工人，具有工艺设计、制造、焊接、热处理、化学清洗及产品检验和试验的能力，能承接各种规格的弯头的高、中、低压及中高温和低温管件制造业务。

The resistance spot weld nugget is formed when the interface of the weld joint is heated due to the resistance of the joint surfaces to electrical current flow.

电阻点焊狗头时会形成界面的焊接接头加热，由于阻力的联合表面的电流流动。

Then can weld starting the resistance directly on the rotor winding, and cancel collecting the electric ring and electric brush.

将定子一种极数的磁场感应于转子绕组中的电流，通过集电环和电刷，但由另一种极数的磁场感应的电流，却自动流经另一闭合回路，而不通过集电环和电刷：于是，如果后一种极数是电动机的工作基波磁场，而把前一种极数作为用以起动的谐波磁场，则可以把起动电阻直接焊接在转子绕组上，而把集电环和电刷取消，从而出现了转子电路上无集电环、无电刷、无触点的谐波起动绕线型感应电动机。

With the help of tensor analysis theory, the velocity field and the strain rate field during the tri-walled tube forming process are deduced, and the energy rate and the needed driving force are determined.

运用数学物理方法，遵循能量守恒定律对卷焊管电阻直热式钎焊过程进行了稳态分析，求得了焊接区上的温度分布及钎焊各工艺参数间的关系，并进一步探讨了钎焊温度波动控制策略及方法。

We also have a joint-venture factory for production of OCTG threader protectors, with annual production capability of one millions pairs of threader protectors for casing, tubing, line pipe, drill pipes.

公司此外还经营直缝埋孤焊、高频电阻直缝焊、螺旋焊等焊接石油天然气输送管，为国外用户代理采购钻机、修井机、抽油机、测井设备、顶部驱动钻井装置、泥浆泵、特车、固控设备、井口工具等产品。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷