焊接

The welding procedures are to be qualified with impact toughness of the weld metal and HAZ at the MDMT.

焊接程序是在 MDMT 与焊接处金属和 HAZ 的冲击有黏性一起取得资格。

On the basic of the reference,aimed at high basicity agglomerated flux ,the relation of the parameters including the current,voltage and welding speed,the position of the twin-wire and its space,the heat input and the form of groove was systemically analyzed by the overlaying o.

在参考相关文献的基础上，针对高强钢用高碱度烧结焊剂，通过在平板表面堆焊和V型坡口对接板试验，系统分析了焊接电流、电弧电压、焊接速度、双丝位置组合及间距、线能量、坡口形式等与焊道成形的关系。

Lateral oscillation arc welding, high-speed-rotating arc welding, twin-wire welding, and ultra NGW can all assure the fusion of side wall and improve the oppearance of weld in relatively small welding variables.

横向摆动电弧、高速旋转电弧、双丝焊和超窄间隙焊4类方式都可以在较小的焊接规范下，保证侧壁熔合，改善焊缝成形，防止焊接裂纹。

5Mm thin shell tube of copper and tube sheet of Q235in central air conditioner .

对薄壁铜管和碳钢管板组合管头的焊接难点进行了分析，制定了合理的焊接工艺，并成功地应用于中央空调器冷凝器和蒸发器的制造中。

The model of the heat source for the quasi-steady state K-PAW, i.e. QPAW, can depict the character of the K-PAW process quite well, because it considers the "bugle-like" configuration of the Keyhole, and the "attenuation-feature" of heat flux distribution of the plasma arc along the direction of the work piece thickness.

准稳态焊接热源作用模式QPAW，考虑到了&喇叭&型小孔几何形状、等离子弧热流沿板厚的作用及其衰减特点，较为符合小孔等离子弧焊接工艺的实际情况。

It is considered that pre-tension stress counteract the compression stress in welding zone generated by thermal expansion, consequently reduce the compression plastic deformation, and depress the tension stress in welding zone when cooling down, and accordingly minish the compression stresses far from the welding zone.

分析认为，预拉伸应力部分抵消了焊接区热膨胀产生的压缩应力，从而减小了压缩塑性变形，进而减小了冷却时焊接区域的拉伸应力水平，相应地远离焊缝区域的压缩应力也随之减小。

During welding operations, except for tack or spot welding, insulation material to be removed in way of the welding.

焊接操作期间，除非间断焊和点焊，绝缘材料应从焊接处移开。

I first tack weld it at several places, then I go around it with the first weld to secure the base firmly.

我第一次钉焊接在几个地方，那么我周围去的第一个焊接，以确保基础牢固。

11 Tack weld shall be the same with welding process of formal welding.

7.2.11 定位焊应与正式焊接的焊接工艺相同。

And this paper introduced the principium, design ideal and approach of waveform presetting of waveform controlling at will The function of relevant hardware circuit controlling was design in this paper uses litter content RLC surge circuit in simulating the current signal of energy storage welding, and took it as Ug to control the inverter cap energy storage spot welding machine. It realized HFPEC resistance spot welding with hardware circuit and got the effect as good as the system controlled by industrial computer and realized the customization and the low cost of welding machine.

本文所设计的相应硬件控制功能，采用小容量RLC 放电回路来模拟输出储能焊过程的电流波形，由此作为电流给定信号直接控制逆变式电容储能点焊电源，实现了完全由硬件电路构成的高频脉冲电阻点焊，能够获得焊接设备的专用化和低成本化的结果，并且可以得到与工控机控制系统相当的焊接效果。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！