Ultralow-hydrogen and high-tenacity metal powder core type seamless flux-cored welding wire for all-position welding
A seamless flux-cored welding wire, ultra-low hydrogen technology, applied in the direction of welding medium, welding equipment, metal processing equipment, etc., can solve the problems of protection, welding wire can not use mixed gas, etc., to achieve good welding processability, stable mechanical properties, The effect of low diffusible hydrogen
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Embodiment 1
[0018] Example 1: The drug core powder consists of 10% low-carbon ferromanganese, 20% atomized ferrosilicon, 3% rutile, 1% cryolite, 3% atomized nickel powder, 1% quartz, 2% feldspar, and the balance is iron pink. The filling rate is 16%, and the wire diameter is 1.2mm.
Embodiment 2
[0019] Example 2: The drug core powder consists of 15% low-carbon ferromanganese, 18% atomized ferrosilicon, 5% rutile, 1.5% cryolite, 2% atomized nickel powder, 1.5% quartz, 0.5% feldspar, and the balance is iron pink. The filling rate is 14%, and the wire diameter is 1.0mm.
Embodiment 3
[0020] Example 3: The drug core powder consists of 12% low-carbon ferromanganese, 15% atomized ferrosilicon, 2% rutile, 5% cryolite, 1% atomized nickel powder, 2% quartz, 1.5% feldspar, and the balance is iron pink. The filling rate is 17%, and the wire diameter is 1.6mm.
[0021] The preparation method of the metal powder-cored seamless flux-cored wire of the present invention is as follows: the sheath is made of ordinary low-carbon steel strip, and the chemical composition and properties are shown in Table 2 and Table 3. The chemical composition and mechanical properties of the welding wire deposited metal are shown in Table 4 and Table 5. The diffusible hydrogen content of deposited metal is shown in Table 6.
[0022] Table 1 The chemical composition (% by weight) of the metal powder cored seamless flux cored wire flux core powder of the embodiment of the present invention
[0023] Low carbon ferromanganese Atomized ferrosilicon rutile cryolite quartz ...
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