ERW管與埋弧（hú）焊管的焊接方式有顯著的不同，采用的是無填充（chōng）金屬的（de）壓力焊接方式（shì）， 焊縫中沒有填充其他成（chéng）分，靠高頻電流的集膚效（xiào）應和臨近效應， 使板邊瞬間加熱到焊（hàn）接溫度，由（yóu）擠壓（yā）輥擠壓形（xíng）成鍛造組織的焊縫。 高品質（zhì）的鋼管要求采用焊縫線上或離線熱處理，使焊區組織細化， 優質（zhì）ERW焊管的焊縫可以達到與母材相同的韌性水準，這是埋弧焊接工藝無法達到的。
ERW pipe and submerged arc welded pipe are welded in different ways. Pressure welding without filling metal is adopted. There is no filling other components in the weld. By skin effect and proximity effect of high frequency current, the edge of the plate is heated instantaneously to the welding temperature, and the forged weld is formed by extrusion roll extrusion. High quality steel pipe requires on-line or off-line heat treatment to refine the structure of weld zone. The weld of high quality ERW pipe can reach the same toughness level as the base metal, which can not be achieved by submerged arc welding technology. 電熔焊 Electric fusion welding 的第一字母的縮寫
Abbreviation for the first letter of Electric fusion welding
埋弧焊(SAW)-電（diàn）熔焊(EFW)的一種，就是通過一個或（huò）幾個自耗電極與工件之間對金屬（shǔ）加（jiā）熱使（shǐ）金屬之間結合中的一種工藝，電弧使金屬和填充材料（liào）充分融化，不需要加壓，填充金屬部分（fèn）勤工全部來自於電極。
Submerged Arc Welding (SAW) - Fusion Welding (EFW) is a process that combines metal by heating one or more consumable electrodes with the workpiece. The arc melts the metal and filler material sufficiently without pressure. The filler metal part of the worker comes from the electrode.
熔化氣體保護焊(GMAW)--電熔焊(EFW)的（de）一種，這種工藝與埋弧焊類似，但它的保護是來自於惰性氣體，效果（guǒ）會更好。
Melting gas shielded welding (GMAW) - a kind of electric fusion welding (EFW). This process is similar to submerged arc welding, but its protection comes from inert gas, and the effect is better.
螺旋（xuán）焊---這也是埋弧（hú）焊的一種，帶有一（yī）條螺旋（xuán）焊縫。
Spiral welding - This is also a submerged arc welding with a spiral weld.
