焊接專機形式多樣，所以應根據不同工件的形狀大小，材質，厚度及焊接成形要求不同的焊接電源。根據日常實踐總結出以下幾點關于山東焊接專機的焊接熱源：

There are various forms of special welding machines, so different welding power sources should be required according to the shape, size, material, thickness and welding shape of different workpieces. According to daily practice, the following points are summarized about the welding heat source of Shandong welding machine:

1.等離子弧焊

1. Plasma arc welding

等離子弧焊是一種不熔化ji氣體保護電弧焊，它是利用電ji和工件之間的壓縮電弧實行焊接的，所用電ji通常是鎢ji。產生等離子弧的等離子氣可用氬氣，氮氣、氦氣或其中兩者的混合氣。同時還通過噴嘴用惰尾氣體保護，焊接時可以選擇是否填充金屬.

Plasma arc welding is a kind of gas shielded arc welding without melting. It uses the compressed arc between the electric ji and the workpiece to weld. The electric ji used is usually tungsten ji. The plasma gas that generates the plasma arc can be argon, nitrogen, helium or a mixture of the two. At the same time, the nozzle is also protected by inert gas, and whether to fill metal can be selected during welding

等離子弧焊接時，由于其電弧挺直，能量密度大，因而電弧穿透能力強。等離子焊接可產生小孔效應，因此對于一定范圍內厚度的大多數金屬可以進行不開坡口焊接，并能保證熔透和焊縫均勻一致。因此，等離子焊接的生產效率高，焊縫質量好，但等離子弧焊設備比較復雜，對焊接工藝及參數控制要求較高(我司在這方面有自己的核心特長)，對于1mm以下的ji薄板焊接，用微束等離子較易進行焊接。

During plasma arc welding, due to its straight arc and high energy density, the arc penetration ability is strong. Plasma welding can produce small hole effect, so most metals with a certain thickness can be welded without groove, and can ensure the penetration and weld uniformity. Therefore, the production efficiency of plasma welding is high and the weld quality is good, but the plasma arc welding equipment is relatively complex, and the requirements for welding process and parameter control are high (our company has its own core expertise in this regard). For the welding of ji thin plates below 1mm, it is easier to weld with micro-plasma.

2.埋弧焊

2. Submerged arc welding

埋弧焊是以連續送絲的焊絲作為電ji和填充金屬。在焊接專機焊接時在區上覆蓋上一層顆粒狀焊劑，電弧在焊劑層下燃燒，將焊絲端部和局部母材熔化，形成焊縫。在電弧熱的作用下，一部分熔劑熔化成熔渣并與液態金屬發生冶金反應，熔渣浮在金屬熔池的表面，一方面可以保護焊縫金屬，防止空氣的污染，另一方面可以使焊縫金屬緩慢冷卻.

Submerged arc welding uses the welding wire with continuous wire feed as the electric ji and filler metal. When the welding machine is used for welding, a layer of granular flux is covered on the area, and the arc burns under the flux layer, melting the end of the welding wire and local base metal to form a weld. Under the action of arc heat, part of the flux melts into molten slag and reacts with liquid metal metallurgically. The molten slag floats on the surface of the metal molten pool. On the one hand, it can protect the weld metal and prevent air pollution, on the other hand, it can make the weld metal slowly cool

3.鎢ji氣體保護電弧焊

3. Tungsten ji gas shielded arc welding

這是一種非熔化ji氣體保護電弧焊，是利用鎢ji和工件之間的電弧使金屬熔化而形成焊縫的,焊接過程中鎢ji不熔化，只起電ji的作用。同時由焊接專機焊炬的噴嘴送出氬氣和氦氣作為保護氣體，另外可根據需要另外填充金屬(我公司生產有的送絲機)。鎢ji由于很好地控制好熱輸入，所以它是連續焊接薄板金屬和打底焊的一種ji好方法，焊接電流采用脈沖形式，因此常常用來進行管道底層的焊接，以達到單面焊雙面成形的目的，這種方法幾乎可以用來所有金屬的焊接，尤其適用于鋁鎂這些能形成難熔氧化物以及像鈦鋯這些活潑金屬的焊接，這種焊接方法焊縫質量高，但與其它電弧焊相比，其焊接速度較慢。

This is a kind of non-molten ji gas shielded arc welding. It uses the arc between tungsten ji and the workpiece to melt the metal to form a weld. During the welding process, tungsten ji does not melt, but only acts as electric ji. At the same time, argon and helium are sent out from the nozzle of the welding torch of the special welding machine as the shielding gas, and additional metal can be filled according to the needs (our company has a professional wire feeder). Due to the good control of heat input, tungsten is a good method for continuous welding of sheet metal and backing welding. The welding current is in the form of pulse, so it is often used to weld the bottom layer of the pipe to achieve the purpose of single-sided welding and double-sided forming. This method can be used for the welding of almost all metals, especially for the welding of aluminum and magnesium which can form refractory oxides and active metals such as titanium and zirconium, This welding method has high weld quality, but its welding speed is slow compared with other electric arc welding methods.

4.熔化ji氣體保護焊

4. Fused ji gas shielded welding

這種焊接方法是利用連續送進的焊絲與工件之間燃燒的電弧作熱源，由焊炬噴嘴噴出的氣體來保護電弧進行焊接的.

This welding method uses the burning arc between the continuously fed welding wire and the workpiece as the heat source, and the gas from the welding torch nozzle protects the arc for welding

熔化ji氣體通常用的氣體有氬氣，氦氣，co2,氧氣或這些氣體的混合氣。以氬氣和氦氣作為保護氣體時簡稱為MIG焊，活性氣體(co2、氧)或活性氣體與惰性氣混合氣作保護氣時簡稱為MAG焊

The gases commonly used to melt ji gas include argon, helium, carbon dioxide, oxygen or a mixture of these gases. MIG welding is referred to as MIG welding when argon and helium are used as shielding gas, and MAG welding is referred to as MAG welding when active gas (carbon dioxide, oxygen) or active gas and inert gas mixture are used as shielding gas

熔化ji氣體保護焊的主要優點是可以方面地進行種位置的焊接，同時具有焊接速度較快，熔敷率較高等優點。

The main advantage of fusion ji gas shielded welding is that it can weld different positions in an all-round way, and has the advantages of faster welding speed and higher deposition rate.

5.藥芯絲電弧焊

5. Flux-cored wire arc welding

藥芯絲電弧焊是利用連續送進的焊絲與工件之間燃燒的電弧作熱源來進行焊接，可以認為是熔化ji氣體保護焊的一種,所以使用的焊絲是藥芯焊絲，焊絲的芯部有不同組成部份的藥粉，焊接時外加保護氣體，藥粉受熱分解或熔化，起著造氣、造渣保護熔池，滲合金及穩弧作用.

Flux-cored wire arc welding uses the burning arc between the continuously fed welding wire and the workpiece as the heat source for welding. It can be considered as a kind of melting ji gas shielded welding. Therefore, the welding wire used is flux-cored welding wire. The core of the welding wire has different components of powder. When welding, the protective gas is added. The powder is decomposed or melted by heat, which plays the role of gas making, slag making, protecting the molten pool, alloying and stabilizing the arc

6.電阻焊

6. Resistance welding

是以電阻熱為能源的一種焊接方法，包括以熔渣電阻熱為能源的電渣焊和以固體電阻熱為能源的電阻焊，以固體電阻熱為能源的電阻焊，主要定位焊，縫焊、凸焊及對焊等。

It is a welding method using resistance heat as energy source, including electroslag welding using slag resistance heat as energy source, resistance welding using solid resistance heat as energy source, resistance welding using solid resistance heat as energy source, mainly positioning welding, seam welding, projection welding and butt welding.

電阻焊一般是使工件處于一定電ji壓力的作用下并利用電流通過工件時所產生的電阻熱將兩工件之間的接觸表面熔化而實現連接的一種方法。通常使用較大電流，為了防止在接觸面上發生電弧并為了鍛壓焊縫金屬，焊接過程中始終要施加壓力。

Resistance welding is generally a method to make the workpiece under the action of a certain electrical pressure and use the resistance heat generated when the current passes through the workpiece to melt the contact surface between the two workpieces to realize the connection. Generally, large current is used. In order to prevent electric arc on the contact surface and forge the weld metal, pressure should always be applied during welding.

此外還有高能速焊、電子束焊，激光焊，激光電弧復合焊，釬焊、高頻焊、氣焊、爆炸焊、摩擦焊，超聲波焊，擴散焊等。

In addition, there are high-energy speed welding, electron beam welding, laser welding, laser arc composite welding, brazing, high-frequency welding, gas welding, explosive welding, friction welding, ultrasonic welding, diffusion welding, etc.

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The above is all about the welding heat source of the special welding machine. If you have any questions or needs, please come to our website http://www.zqnxnews.com Look!