Ni-Cr-Al-Ti-Co welding wire, method and groove form
A technology of welding wire and flux-cored welding wire, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve problems such as weld cracking, achieve the effect of improving strength, improving fluidity of molten pool, and simple welding operation
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[0038] The present invention also provides a method for preparing the above-mentioned Ni-Cr-Al-Ti-Co welding wire, the specific steps are as follows:
[0039] Step 1: Weigh the following powders by mass percentage: 20.0-30.0% of Cr powder, 10.0-20.0% of Al powder, 10.0-20.0% of Ti powder, 5.0-10.0% of Co powder, and the rest is Ni, the mass percentage of the above components The sum is 100%;
[0040] In step 1, the particle size of each medicinal powder is 100-200 mesh;
[0041] Step 2: Put the medicinal powder weighed in step 1 into a vacuum heating furnace for heating at a heating temperature of 200-300°C and a holding time of 2-3 hours to remove the crystal water in the medicinal powder; place the dried medicinal powder in Fully mix in the powder mixer, the mixing time is 3-4h;
[0042] Step 3: Use pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, wrap the powder prepared in step 2 in the pure nickel strip thr...
Embodiment 1
[0048] Step 1: take by weight the following powders respectively by mass percentage: 20.0% of Cr powder, 10.0% of Al powder, 10.0% of Ti powder, 5.0% of Co powder, all the other being Ni, and the sum of the mass percentages of the above components is 100%; step 1 Among them, the particle size of each powder is 100 mesh;
[0049]Step 2: Put the powder weighed in step 1 into a vacuum heating furnace for heating at a temperature of 300°C and a holding time of 2 hours to remove the crystal water in the powder; place the dried powder in a powder mixer Carry out sufficient mixing, the mixing time is 3h;
[0050] Step 3: Use pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, wrap the powder prepared in step 2 in the pure nickel strip through the flux-cored wire drawing equipment, and the aperture of the first drawing die is 2.6 mm; the filling rate of the flux-cored wire is controlled at 25wt.%; the thickness of the pure ...
Embodiment 2
[0056] Step 1: Weigh the following powders by mass percentage: 30.0% Cr powder, 20.0% Al powder, 20.0% Ti powder, 10.0% Co powder, and the rest being Ni. The sum of the mass percentages of the above components is 100%. In step 1, the particle size of each medicated powder is 200 mesh;
[0057] Step 2: Put the powder weighed in step 1 into a vacuum heating furnace for heating at a temperature of 300°C and a holding time of 2 hours to remove the crystal water in the powder; place the dried powder in a powder mixer Carry out sufficient mixing, the mixing time is 3h;
[0058] Step 3: Use pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, wrap the powder prepared in step 2 in the pure nickel strip through the flux-cored wire drawing equipment, and the aperture of the first drawing die is 2.6 mm; the filling rate of the flux-cored wire is controlled at 30wt.%; the thickness of the pure nickel strip is 0.4mm, and the widt...
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