A modified austenitic stainless steel surfacing electrode and its preparation method
A technology of austenitic stainless steel and surfacing welding rods, applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems of difficult maintenance of pressure vessels, impact on the benefits of chemical enterprises, and delays in maintenance time, and achieve physical and chemical properties. The effect of refining coarse grains and improving strength
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Embodiment 1
[0035] Such as figure 1 As shown, a modified austenitic stainless steel surfacing electrode includes a coating 1 and a welding core; the welding core includes a second interlayer 2, an outer layer of the welding core 3, a first interlayer 4 and an inner layer of the welding core from outside to inside 5. The inner layer 5 of the welding core includes metal chromium powder and graphite; the outer layer 3 of the welding core includes nickel powder, silicon powder, manganese powder and iron powder; the weight percentage of each component in the inner layer 5 of the welding core and the outer layer 3 of the welding core is: metal Chromium powder 22.26-24.73%, graphite 0.05-0.12%, nickel powder 9.89-13.6%, silicon powder 0.93%, manganese powder 2.47% and iron powder 58.15-64.4%; the materials of the first interlayer and the second interlayer are both No. 10 steel.
[0036] The above-mentioned modified austenitic stainless steel surfacing electrode changes the traditional electrod...
Embodiment 2
[0038] Such as figure 1 As shown, a modified austenitic stainless steel surfacing electrode includes a coating 1 and a welding core; the welding core includes a second interlayer 2, an outer layer of the welding core 3, a first interlayer 4 and an inner layer of the welding core from outside to inside 5. The inner layer 5 of the welding core includes metal chromium powder and graphite; the outer layer 3 of the welding core includes nickel powder, silicon powder, manganese powder, rare earth element oxides and iron powder; The weight percentage is: metal chromium powder 22.26-24.73%, graphite 0.05-0.12%, nickel powder 9.89-13.6%, silicon powder 0.93%, manganese powder 2.47%, rare earth oxide powder 2.47%-6.18% and iron powder 51.97-61.93% %.
[0039] For the above-mentioned modified austenitic stainless steel surfacing electrode, rare earth element oxides are added to the outer layer 3 of the welding core. Under the action of molten pool reflow during the welding process, the...
Embodiment 3
[0041] Such as figure 1 As shown, a modified austenitic stainless steel surfacing electrode includes a coating 1 and a welding core; the welding core includes a second interlayer 2, an outer layer of the welding core 3, a first interlayer 4 and an inner layer of the welding core from outside to inside 5. The inner layer 5 of the welding core includes metal chromium powder, graphite and molybdenum powder; the outer layer 3 of the welding core includes nickel powder, silicon powder, manganese powder, rare earth element oxide and iron powder; the inner layer 5 of the welding core and the outer layer 3 of the welding core The weight percentage of each component is: metal chromium powder 19.78-22.56%, graphite 0.043%, molybdenum powder 2.47-3.71%, nickel powder 9.89-13.6%, silicon powder 0.93%, manganese powder 2.47%, rare earth oxide powder 2.47%- 6.18% and iron powder 50.51-61.95%.
[0042] The above-mentioned modified austenitic stainless steel surfacing welding electrode adds...
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