A kind of anti-gravity vacuum suction casting equipment and method for preparing cobalt-based alloy welding wire
A technology of vacuum suction casting and cobalt-based alloys, which is used in welding equipment, metal processing equipment, welding media, etc., can solve the problems of poor surface quality, poor quality, and reports of welding wires, and achieve good casting quality and high yield. , the effect of simple process
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Embodiment 1
[0032] Such as figure 1 The shown anti-gravity vacuum suction casting molding equipment includes a vacuum induction melting furnace 1 and an anti-gravity vacuum suction casting assembly. The side wall of the vacuum induction melting furnace 1 is provided with a vent 10. The vacuum induction melting furnace 1 A crucible 6, a hopper 11 located above the crucible 6 and a casting mold 7 located below the crucible 6 are arranged inside, an induction coil 5 is wound outside the crucible 6, and the anti-gravity vacuum suction casting assembly includes a vacuum tank 2, a vacuum pump 3 and a quartz tube bundle 9, the vacuum pump 3 is connected to the vacuum tank 2 through the first vacuum pipeline 12-1, the vacuum tank 2 is connected to the adapter through the second vacuum pipeline 12-2, the adapter is connected to the quartz tube bundle 9, and the vacuum The tank 2 is provided with a vacuum gauge 4 .
[0033] In this embodiment, one end of the adapter is provided with a vacuum tube ...
Embodiment 2
[0038] The cobalt-based alloy welding wire to be prepared in this embodiment includes the following components by mass percentage: C: 0.55%, Cr: 25.5%, W: 7.5%, Si: 0.85%, Fe: 1%, Ni: 10.5%, Mn: 0.85 %, B: 0.0065%, Co: balance. combine figure 1 In this embodiment, the method for preparing cobalt-based alloy welding wire by using the anti-gravity vacuum suction casting molding equipment described in Example 1 includes the following steps:
[0039] Step 1, initial melting: the Ni-B master alloy with a B mass content of 6% and the Ni-Mn master alloy with a Mn mass content of 60% are coated with Ni foil and added to the hopper 11, and all the remaining alloy elements Add it into the crucible 6, then vacuumize the vacuum induction melting furnace 1, and wait for the pressure in the furnace to drop to 3×10 -2After Pa, use the induction coil 5 to heat the material in the melting crucible 6, and stop heating after refining for 12 minutes. After the molten material in the crucible 6 ...
Embodiment 3
[0049] The cobalt-based alloy welding wire to be prepared in this embodiment includes the following components by mass percentage: C: 1.2%, Cr: 29%, W: 4.7%, Si: 1.2%, Mo: 0.1%, Fe: 1.5%, Ni: 2.2% %, B: 0.05%, Mn: 0.3%, Co: balance. combine figure 1 In this embodiment, the method for preparing cobalt-based alloy welding wire by using the anti-gravity vacuum suction casting molding equipment described in Example 1 includes the following steps:
[0050] Step 1, initial melting: the Ni-B master alloy with a B mass content of 8% and the Ni-Mn master alloy with a Mn mass content of 50% are coated with Ni foil and added to the hopper 11, and all the remaining alloy elements Add it into the crucible 6, then vacuumize the vacuum induction melting furnace 1, and wait for the pressure in the furnace to drop to 6×10 -2 After Pa, use the induction coil 5 to heat the material in the melting crucible 6, and stop heating after refining for 12 minutes. After the molten material in the cruci...
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Abstract
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