Magnetic conductive material, preparation method thereof and cooking utensil
A technology for magnetic conductive materials and cooking utensils, applied in the field of utensils, can solve the problems of easy rust and corrosion, easy falling off of iron, and high cost
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[0052] In the second aspect, the embodiments of the present application also provide a method for preparing a magnetically conductive material, such as figure 1 shown, including the following steps:
[0053] Step S10, obtain metal raw materials according to a preset ratio relationship, the metal raw materials include essential metals and other metals, and the essential metals include at least one of Fe, Co and Ni; the other metals include Mg, Al, at least three of Ti, V, Cr, Mn, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, Pb, Si and B;
[0054] In step S20, under a protective atmosphere, the metal raw material is subjected to smelting treatment or high-energy ball milling treatment to obtain a magnetically permeable material, and the magnetically permeable material includes a high-entropy alloy.
[0055] In the above scheme, by subjecting the metal raw material to smelting treatment or high-energy ball milling, the metal raw material is alloyed with high entropy at high temperature, a...
Embodiment 1
[0092] The metal raw materials (iron powder, NiCr alloy, cobalt powder, copper powder) are put into the crucible in the vacuum arc furnace. 99.5%; vacuum to 6*10 - 2 Pa~5*10 -3 Pa, pour high-purity argon into the electric arc furnace to 1.013*10 5 Pa starts smelting; control the arc ignition current to 60A, first smelt on a crucible containing metal raw materials to remove oxygen in the furnace, and then use a welding torch to smelt the raw materials, the smelting current is 250A, and the alloy is turned with a manipulator after each smelting. After the smelting is completed, the alloy is moved to a suction casting copper crucible for cooling for 15 minutes, and the required bulk magnetic conductive material can be obtained, which is FeCrCoNiCu. Among them, the molar content of essential elements is 60%.
Embodiment 2
[0094] The metal raw materials (iron powder, NiCr alloy, cobalt powder, copper powder) are put into the crucible in the vacuum arc furnace. 99.5%; vacuum to 6*10 - 2 Pa~5*10 -3 Pa, pour high-purity argon into the electric arc furnace to 1.013*10 5 Pa starts smelting; control the arc ignition current to 60A, first smelt on a crucible containing metal raw materials to remove oxygen in the furnace, and then use a welding torch to smelt the raw materials, the smelting current is 250A, and the alloy is turned with a manipulator after each smelting. surface, and smelted 8 times repeatedly to ensure uniform alloy composition;
[0095] The liquid alloy obtained by smelting is introduced into the high-speed nitrogen gas flow through a nozzle with a diameter of 0.5mm, and the nozzle angle is 30°~60°. The metal droplets, which are magnetically conductive materials that form powder particles after cooling, are FeCrCoNiCu. Among them, the molar content of essential elements is 60%.
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