Low-hydrogen alkaline electrode for online welding of X80 pipeline steel
A basic welding rod and pipeline steel technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problem of no X80 pipeline steel, etc., and achieve fine and beautiful weld formation and hydrogen content of deposited metal diffusion Good effect on control and arc stability
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preparation example Construction
[0056] The present invention also provides a kind of preparation method of welding rod, implement according to the following steps:
[0057] Step 1, make solder core
[0058] 3) Place professional pure iron and industrial pure iron in the center of the crucible, spread graphite, ferromanganese, ferrosilicon, ferromolybdenum and bornite around the inner wall of the crucible, then spread Ni powder in the middle of the crucible, and then place The Ni powder is covered with graphite, ferromanganese, ferrosilicon, ferromolybdenum and bornite. Put the crucible and the contents in the crucible into an induction furnace for smelting. All the contents in the crucible are melted to form molten alloy steel. When the temperature reaches 1540°C and the molten steel is calm, stop heating, cool and exhaust for 15 minutes, then heat and refine for 20 minutes, then stop heating, and add Ti powder when the temperature of alloy steel liquid drops to 1550°C, when the temperature of alloy steel li...
Embodiment 1
[0067] Make solder core
[0068] Place professional pure iron and industrial pure iron in the center of the crucible, spread graphite, ferromanganese, ferrosilicon, ferromolybdenum and bornite around the inner wall of the crucible, then spread Ni powder in the middle of the crucible, and then spread Ni powder The top is covered with graphite, ferromanganese, ferrosilicon, ferromolybdenum, and bornite. Put the crucible and the contents in the crucible into an induction furnace for smelting. All the contents in the crucible are melted to form molten alloy steel. The temperature of the molten alloy steel reaches 1540°C, and when the molten steel is calm, stop heating, and cool and exhaust for 15 minutes, then heat and refine for 20 minutes, then stop heating, and add Ti powder when the temperature of the molten alloy steel drops to 1550°C, 5 minutes before the temperature of the molten alloy steel drops to 1540°C Fill in argon gas to make the pressure in the furnace reach 300mmHg...
Embodiment 2
[0082] Make solder core
[0083] Place professional pure iron and industrial pure iron in the center of the crucible, spread graphite, ferromanganese, ferrosilicon, ferromolybdenum and bornite around the inner wall of the crucible, then spread Ni powder in the middle of the crucible, and then spread Ni powder The top is covered with graphite, ferromanganese, ferrosilicon, ferromolybdenum, and bornite. Put the crucible and the contents in the crucible into an induction furnace for smelting. All the contents in the crucible are melted to form molten alloy steel. The temperature of the molten alloy steel reaches 1540°C, and when the molten steel is calm, stop heating, and cool and exhaust for 15 minutes, then heat and refine for 20 minutes, then stop heating, and add Ti powder when the temperature of the molten alloy steel drops to 1550°C, 5 minutes before the temperature of the molten alloy steel drops to 1540°C Fill in argon gas to make the pressure in the furnace reach 350mmHg...
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