High performance corrosion resistant alloy wire solder and manufacturing method thereof
A corrosion-resistant alloy and alloy welding rod technology, which is applied in the direction of manufacturing tools, welding media, welding equipment, etc., can solve the problems of no domestic welding rods, etc., and achieve the effects of good welding process performance, environmental protection, and easy arc ignition
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Embodiment 1
[0014] First, before preparing the NiCrMo welding core, establish the point composition of the smelting alloy, that is, according to the type of electrode coating, the increase and decrease of the alloy elements that occur during the welding metallurgical process, and then establish the composition range of the smelting alloy within the range of the NiCrMo alloy. Point composition, the point composition (wt%) of electrode of the present invention is: carbon≤0.02%, Mn≤0.20%, silicon≤0.08%, iron 4.0%, Cr17.0%, Mo16.0%, W3.8%, Co1 .0%, V0.2%, the balance is nickel.
[0015] The steel ingot with the above composition is peeled and forged into a 38×38 billet, rolled into a Φ8.5m / m disc, and drawn into a 4.0, 3.2, 2.5m / m core wire material for use in the manufacture of welding rods.
[0016] Select the titanium-calcium type coating formula with good welding process performance to manufacture NiCrMo electrode. The described titanium-calcium type coating formula (wt%) is: 20% of marbl...
Embodiment 2
[0018] The manufacturing method of this embodiment is the same as that of Embodiment 1. Firstly, the welding core alloy is smelted, and the core material is made through forging, steel rolling, and drawing, and then the titanium-calcium type coating formula is selected to manufacture the alloy electrode. The final composition (wt%) of the NiCrMo electrode that obtains is: carbon 0.013%, silicon 0.14%, manganese 0.58%, sulfur 0.008%, P0.0025%, chromium 14.5%, molybdenum 17.0%, tungsten 3.0%, cobalt 1.05%, Vanadium 0.11%, iron 4.0%, nickel balance. The mechanical properties of the weld metal are σ b 745MPa, δ42%.
Embodiment 3
[0020] The manufacturing method of this embodiment is the same as that of Embodiment 1. Firstly, the welding core alloy is smelted, and the core material is made through forging, steel rolling, and drawing, and then the titanium-calcium type coating formula is selected to manufacture the alloy electrode. The final composition (wt%) of the NiCrMo electrode that obtains is: carbon 0.013%, silicon 0.14%, manganese 0.58%, sulfur 0.008%, P0.0025%, chromium 16.5%, aluminum 15.0%, tungsten 4.5%, cobalt 1.05%, Vanadium 0.11%, iron 7.0%, nickel balance. The mechanical properties of the weld metal are σ b 750MPa, δ50%.
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