A kind of nickel-based electrode for welding uns N10276 nickel-based alloy and its preparation method
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A nickel-based electrode and nickel-based alloy technology, applied in welding equipment, welding medium, metal processing equipment, etc., can solve the problems of poor all-position welding process, poor surface brightness, uneven weld formation, etc., and achieve good Excellent welding process performance, stable performance, and reasonable formula ratio
Active Publication Date: 2018-10-09
SHANGHAI ATLANTIC WELDING CONSUMABLES
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[0005] Nickel-based alloys have a high melting point, and the electrode produced with titanium-calcium slag-based coating formula often has poor fluidity of the molten pool; uneven weld formation, poor surface brightness, poor all-position welding process, and weld crack resistance Disadvantages such as poor sex
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[0023] The technical solutions of the present invention will be further specifically described below through specific examples, but the present invention is not limited to the examples.
[0024] A nickel-based electrode for welding UNS N10276 nickel-based alloy of the present invention includes a welding core and a coating covering the welding core, and the weight percentages of the chemical components of the welding core are respectively (wt%): C ≤0.015%, Mn≤0.50%, Si≤0.15%, S≤0.010%, P≤0.015%, Cr15.0%-17.0%, Mo15.0%-17.0%, W3.0%-4.5%, Fe4. 0%-7.0%, the balance is Ni and inevitable impurities; the weight percentages of the components in the drug skin are respectively: rutile powder 3-8%, marble powder 30-45%, fluorite powder 35-50% %, feldspar powder 1-5%, mica 0.5-2%, titanium dioxide 1.0-3%, fluoroaluminate 0.5-1.5%, electrolytic manganese 0.5-1.5%, potassium titanate 2-5%, alginate 1 ~3%, soda ash 0.3%~1.0%, metal chromium 2%~5%, molybdenum iron 1%~2%, nickel powder 5%~10...
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Abstract
The invention discloses a nickel base welding rod for welding a UNSN10276 nickel base alloy. The nickel base welding rod comprises a welding core and a cover for cladding the welding core, and is characterized in that the welding core comprises the following chemical components in percentage by weight (wt%): C not more than 0.015%, Mn not more than 0.50%, Si not more than 0.15%, Ni and S not more than 0.010%, P not more than 0.015%, 15.0-17.0% of Cr, 15.0-17.0% of Mo, 3.0-4.5% of W, 4.0-7.0% of Fe, and inevitable impurities; the cover comprises the following components in percentage by weight: 3-8% of rutile powder, 30-45% of marble powder, 35-50% of fluorite powder, 1-5% of feldspar powder, 0.5-2% of mica, 1.0-3% of titanium dioxide, 0.5-1.5% of fluorine aluminate, 0.5-1.5% of electrolytic manganese, 2-5% of potassium titanate, 1-3% of alginate, 0.3-1.0% of soda, 2-5% of metal chromium, 1-2% of ferromolybdenum, 5-10% of nickel powder, 2-8% of ferrotitanium and adhesive; and the total quantity of all the components is 100%. The nickel base welding rod has the advantages of reasonable formula ratio, excellent welding process performances and excellent welding line crack resistance.
Description
technical field [0001] The invention relates to a welding rod, more particularly, to a nickel-based welding for welding UNSN10276 nickel-based alloy and a preparation method thereof. Background technique [0002] UNSN10276 nickel-based alloy is generally recognized for its good corrosion resistance in many strong corrosive media. The high molybdenum content makes the material highly resistant to localized corrosion (such as pitting corrosion); while the low carbon content reduces carbide precipitation during welding, thereby ensuring intergranular corrosion resistance in the heat-affected zone of the welded joint. The material is widely used in chemical industry, environmental protection, pulp and paper industry, industrial and municipal waste treatment and recycling of "sour" natural gas. In terms of air pollution control, it is mainly used in chimney lining, flue, baffle door, desulfurization spray scrubber, reheater of treated flue gas, fan and fan casing, etc. In the c...
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