Automatic welding machine is designed for the welding of boiler and heat exchanger products in chemical industry. It mainly includes power supply (including control system and water cooling system), machine head and welding operation frame; automatic welding machine can be used according to customer's welding process requirements. With the core design of self fusion / welding wire, DC / pulse welding mode and no winding hydropower, the complex process requirements of single pass and multi pass can be realized

有芯中心定位和焊接操作框架定位兩種方法，根據(jù)不同的管徑選擇不同的定位方法，設(shè)計(jì)更加合理，人性化。全自動(dòng)焊機(jī)的焊接系統(tǒng)集成度高，運(yùn)行穩(wěn)定可靠。還有一種自溶型，通常與薄壁管焊接在一起，例如用于發(fā)電廠冷凝器的不銹鋼管或鈦管。當(dāng)然，它也可以用于熱交換器行業(yè) .

There are two methods of core center positioning and welding operation frame positioning, and different positioning methods are selected according to different pipe diameters, so the design is more reasonable and humanized. The welding system of automatic welding machine has high integration and stable and reliable operation. Another self dissolving type is usually welded with thin-walled tubes, such as stainless steel or titanium tubes used in power plant condensers. Of course, it can also be used in the heat exchanger industry

全自動(dòng)焊機(jī)的工作原理：焊接原理介于冷壓焊接和摩擦焊接之間，它利用高頻機(jī)械振動(dòng)產(chǎn)生的高密度能量。超聲波金屬焊接的焊接頭的機(jī)械振動(dòng)與工件表面平行。在焊接過(guò)程中，靜壓通過(guò)焊接頭垂直作用在焊接表面上，并疊加了高頻振動(dòng)的剪切力。

Working principle of automatic welding machine: the welding principle is between cold pressing welding and friction welding. It uses high-density energy generated by high-frequency mechanical vibration. The mechanical vibration of ultrasonic metal welding joint is parallel to the workpiece surface. In the welding process, the static pressure acts vertically on the welding surface through the welding joint, and the shear force of high frequency vibration is superimposed.

當(dāng)剪切力超過(guò)材料的彈性極限時(shí)，工件接觸表面的一部分開始滑動(dòng)。該剪切力在焊接過(guò)程中，方向以每秒數(shù)萬(wàn)次的頻率連續(xù)變化，并且工件表面上的污垢被破壞并。

When the shear force exceeds the elastic limit of the material, a part of the contact surface of the workpiece begins to slide. During the welding process, the direction of the shear force changes continuously with tens of thousands of times per second, and the dirt on the surface of the workpiece is destroyed and removed.

純金屬的表面開始形成多點(diǎn)接觸。隨著高頻振動(dòng)的繼續(xù)，純金屬的接觸面積繼續(xù)擴(kuò)大，直到擴(kuò)展到整個(gè)焊接區(qū)域。同時(shí)，原子擴(kuò)散在接觸表面上，并且金屬重結(jié)晶以產(chǎn)生細(xì)晶粒的結(jié)構(gòu)并且表現(xiàn)出金屬的冷變形的特性。

The surface of pure metal began to form multi-point contact. As the high frequency vibration continues, the contact area of pure metal continues to expand until it extends to the whole welding area. At the same time, the atoms diffuse on the contact surface, and the metal recrystallizes to produce fine grain structure, which shows the characteristics of cold deformation of metal.