点焊的

Resistance spot welding is a kind of highly efficient weldingmethod,which is mainly used fOr the batch production.

电阻点焊是一种高效的焊接方法，多应用在批量生产中。

Research status and developing prospect of spot welding butt strip is systematically introduced in this paper.

系统地介绍了点焊拼接板的研究现状和发展前景。

A set of convenient and reliable dynamic parameter measuring system in resistance spot welding was designed in this paper.

本文设计了一套便捷、可靠的电阻点焊动态参数测试系统。

By research on numerical simulation,the variation rules of dynamic resistance and contact resistance are discovered quantitatively.

通过数值模拟研究，定量揭示了铝合金点焊过程中动态电阻和接触电阻的变化规律。

The main production equipment has a large bending machine, shearing machine, VS-300 metal profile circular saw machine, automatic multi-type spot welder, Y32-315F Four-column hydraulic press, J23-63 four-post presses, such as open dumping windows the production of special equipment and can produce its own large-scale mold tooling, in order to ensure product quality and new product development to provide strong technical support.

主要生产设备有大型折弯机、剪板机、VS-300金属型材圆锯机、自动多头式点焊机、Y32-315F四柱液压机、J23-63四柱开式倾压力机等门窗制作专用设备，并可自行制作大型工装模具，为确保产品质量和新产品研制提供强有力的技术保障。

Results show that the servic.e life of TiB2/Cu electrode with a TiB2 content of 1.5 wt% reaches 7700 weld spots, which is 4 to 8 times that of Cr-Zr-Cu electrode materials when coated steel sheets are spot welded; the service life of the composite electrode reaches 30000 weld spots, 2 to 3 times that of Cr-Zr-Cu electrode materials when conventional carbon steel sheets are spot welded.

对 T i B2增强铜基复合材料作点焊电极点焊镀层钢板时的失效进行了分析，结果表明：含TiB2为1.5wt％的铜基复合材料作电极，焊接镀锌钢板的使用寿命约为7700点，是普通电极材料Cr－Zr－Cu的4～8倍，焊接普通钢板的使用寿命约为30000点，是普通电极材料Cr－Zr－Cu的2～3倍。

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward.

根据对上述试验结果的分析和比较，提出了锌镀钢板点焊时焊接电流、焊接时间和电极压力等参数的选用原则，并对几种镀锌钢板给出了相应的点焊规范范围。

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward.

而在这些产品的装配和制造中，往往会用到电阻点焊方法，由于镀锌钢板表面锌层的熔点很低、硬度也低，给点焊带来一定的困难［1］。

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward. The relevant spot welding parameters for every kind of zinc-coated steels were proposed.

根据对上述试验结果的分析和比较，提出了锌镀钢板点焊时焊接电流、焊接时间和电极压力等参数的选用原则，并对几种镀锌钢板给出了相应的点焊规范范围。

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。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。