Nickel-based alloy welding strip and preparation method and application thereof
A nickel-based alloy and welding strip technology, which is applied in welding equipment, metal processing equipment, manufacturing tools, etc., to achieve the effect of improving high-temperature tensile properties, good surface quality, and ensuring uniformity
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preparation example Construction
[0066] In the above-mentioned preparation method of the nickel-based alloy welding strip for nuclear island equipment, the alloy raw materials are proportioned according to the composition of the nickel-based alloy welding strip for nuclear island equipment, and then smelting → refining → billet forging → hot rolling → steel coil annealing. →First pickling→rough cold rolling→cleaning→rough cold rolling intermediate annealing→second pickling→finishing cold rolling→finishing cold rolling intermediate annealing→coiling→oil removal process to make nickel-based alloy welding strip for nuclear island equipment.
[0067] The specific preparation method of the nickel-based alloy welding strip for the nuclear island equipment is as follows:
[0068] (1) Smelting: First, clean the surface of all raw materials by rust removal, baking, etc., then obtain alloy raw materials according to the composition ratio of nickel-based alloy welding strips for nuclear island equipment, and add alloy ra...
Embodiment 1
[0092] (1) Smelting: According to the composition requirements of the nickel-based alloy welding strip for nuclear island equipment, all raw materials are derusted and baked, and the alloy raw materials are prepared according to the proportion and then added to the vacuum furnace. After melting, heat preservation and refining for 50min, adjust the composition to reach the requirements of Example 1 in Table 1, pour and tap the steel to obtain a steel ingot, and control the tapping temperature to be 1500 ° C;
[0093] (2) Refining: the steel ingot obtained in step (1) is used as an electroslag remelting electrode, and refining is carried out in an Ar atmosphere electroslag remelting furnace, using Al 2 O 3 -CaF 2 -CaO slag system ensures the refining effect, and controls the melting rate to 3.5Kg / min.
[0094] (3) Billet forging: The electroslag remelted ingot is heated to 1180°C, and forged into a flat billet with a width of 750mm and a thickness of 180mm, and the final forgi...
Embodiment 2
[0107] (1) Smelting: According to the composition requirements of the nickel-based alloy welding strip for nuclear island equipment, all raw materials are derusted and baked, and the alloy raw materials are prepared according to the proportion and then added to the vacuum furnace. After melting, heat preservation and refining for 30min, adjust the composition to reach the requirements of Example 1 in Table 1, pour and tap the steel to obtain a steel ingot, and control the tapping temperature to be 1490 ° C;
[0108] (2) Refining: the steel ingot obtained in step (1) is used as an electroslag remelting electrode, and refining is carried out in an Ar atmosphere electroslag remelting furnace, using Al 2 O 3 -CaF 2 -CaO slag system ensures the refining effect, and the melting rate is controlled to be 4.8Kg / min.
[0109] (3) Billet forging: The electroslag remelted steel ingot is heated to 1200°C, forged into a flat billet with a width of 700mm and a thickness of 120mm, and the f...
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