巴頓电焊研究所在1958～1959年研究了利用粉末焊丝无保护气体的机械化明弧焊接法。焊接采用冷拉管状粉末焊丝,这种焊絲便于导电和利用軟管半自动焊机焊接。粉末焊丝用冷軋低碳鋼带、造渣和造气材料、铁合金以及铁粉制成。管内加入粉末材料的数量根据焊絲芯子的成分与鋼带的厚度决定,約 Barton Institute of Welding in 1958 ~ 1959 studied the use of powder wire unprotected gas mechanized flaming arc welding method. Welded cold drawn tubular powder wire, this wire for easy conduction and the use of hose semi-automatic welding machine welding. Powder welding wire with cold-rolled low-carbon steel, slagging and gas-making materials, ferroalloy and iron powder made. The amount of powder material added to the tube depends on the composition of the wire core and the thickness of the strip, about