Process for the production of magnesium cobalt alloy hydride

Abstract

The application discloses a manufacturing method of magnesium-cobalt alloy hydride and relates to the technical field of magnesium-cobalt alloy hydride. The magnesium-cobalt alloy hydride comprises the following components in parts by mass: 40-60 parts of magnesium, 30-40 parts of cobalt, 0.1-0.2 parts of carbon, 0.15-0.3 parts of silicon, 0.3-0.5 parts of manganese, 0.02-0.04 parts of phosphorus, 1-1.8 parts of chromium, 1-2 parts of nickel, 1-2 parts of molybdenum and 2-4 parts of rare earth. The manufacturing method comprises the following steps: raw material pretreatment, mixed melting and hydrogenation treatment. In the application, when the mass ratio of magnesium to cobalt is about 1.5, the highest melting point is reached, which is about 2275 DEG C; when the mass ratio of magnesium to cobalt is about 1.67, the HRC value reaches the maximum, which is about 82.9. The melting point and HRC value of the magnesium-cobalt alloy hydride are both greater than those of common alloys, and the magnesium-cobalt alloy hydride has excellent high-temperature resistance and high-strength properties.

Description

Technical Field

[0001] This invention relates to the field of magnesium-cobalt alloy hydride technology, specifically a method for manufacturing magnesium-cobalt alloy hydrides. Background Technology

[0002] An alloy is a substance with metallic properties synthesized from two or more metals and metals or non-metals through a certain method. It is generally obtained by melting and solidifying two or more metals into a homogeneous liquid. Based on the number of constituent elements, alloys can be classified as binary alloys, ternary alloys, and multi-element alloys. Magnesium-cobalt alloys are one type of alloy. Hydrogen energy has advantages such as abundant reserves and high energy density. The large-scale application of hydrogen energy is of paramount importance to energy, environment, economy, and human development. Hydrogen storage is a prerequisite for the application of hydrogen energy.

[0003] However, there is limited research on magnesium-cobalt alloy hydrides in the current technology, and the research field has been largely unexplored. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing magnesium-cobalt alloy hydrides to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] Magnesium-cobalt alloy hydride, wherein the magnesium-cobalt alloy hydride comprises, by mass parts:

[0007] 40-60 parts magnesium

[0008] 30-40 parts cobalt

[0009] 0.1-0.2 parts carbon

[0010] Silicon 0.15-0.3 parts

[0011] Manganese 0.3-0.5 parts

[0012] Phosphorus 0.02-0.04 parts

[0013] Chromium 1-1.8 parts

[0014] 1-2 parts nickel

[0015] 1-2 parts of molybdenum

[0016] Rare earth elements 2-4 parts.

[0017] As a further aspect of the present invention: the magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel and molybdenum are all in elemental form.

[0018] A method for manufacturing magnesium-cobalt alloy hydrides, the method comprising: raw material pretreatment, mixing and melting, and hydrogenation treatment.

[0019] As a further aspect of the present invention, the specific steps of the raw material pretreatment are as follows:

[0020] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0021] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0022] As a further aspect of the present invention, the specific steps of the mixing and melting are as follows:

[0023] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0024] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0025] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0026] As a further embodiment of the present invention, the specific steps of the hydrogenation treatment are as follows:

[0027] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0028] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0029] As a further embodiment of the present invention: the mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h.

[0030] As a further embodiment of the present invention: the hydrogenation treatment time in step S6 is 8 hours, and the cooling temperature in step S7 is room temperature.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, when the mass ratio of magnesium to cobalt is about 1.5, the highest melting point is reached, which is about 2275°C. When the mass ratio of magnesium to cobalt is about 1.67, the HRC value reaches the maximum, which is about 82.9. The melting point and HRC value of the magnesium-cobalt alloy hydride are both greater than those of ordinary alloys, and it has better high temperature resistance and high strength properties. Attached Figure Description

[0032] Figure 1 The melting point and HRC value of each embodiment in the method for manufacturing magnesium-cobalt alloy hydrides.

[0033] Figure 2 Line graph showing the relationship between the mass ratio of magnesium and cobalt and the melting point in the manufacturing method of magnesium-cobalt alloy hydrides.

[0034] Figure 3 A line graph showing the relationship between the mass ratio of magnesium and cobalt and the HRC value in the manufacturing method of magnesium-cobalt alloy hydrides. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In Embodiment 1 of this invention, the magnesium-cobalt alloy hydride comprises, by mass parts:

[0037] 40 parts magnesium

[0038] 30 parts cobalt

[0039] 0.15 parts carbon

[0040] 0.2 parts silicon

[0041] 0.4 parts manganese

[0042] 0.03 parts phosphorus

[0043] Chromium 1.4 parts

[0044] 1.5 parts nickel

[0045] 1.5 parts molybdenum

[0046] Three parts of rare earth elements.

[0047] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0048] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0049] The specific steps for raw material pretreatment are as follows:

[0050] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0051] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0052] The specific steps for mixing and melting are as follows:

[0053] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0054] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0055] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0056] The specific steps of hydrogenation are as follows:

[0057] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0058] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0059] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0060] In Embodiment 2 of the present invention, the magnesium-cobalt alloy hydride comprises, by mass parts:

[0061] 40 parts magnesium

[0062] 40 parts cobalt

[0063] 0.15 parts carbon

[0064] 0.2 parts silicon

[0065] 0.4 parts manganese

[0066] 0.03 parts phosphorus

[0067] Chromium 1.4 parts

[0068] 1.5 parts nickel

[0069] 1.5 parts molybdenum

[0070] Three parts of rare earth elements.

[0071] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0072] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0073] The specific steps for raw material pretreatment are as follows:

[0074] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0075] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0076] The specific steps for mixing and melting are as follows:

[0077] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0078] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0079] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0080] The specific steps of hydrogenation are as follows:

[0081] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0082] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0083] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0084] In Example 3 of this invention, the magnesium-cobalt alloy hydride comprises, by mass parts:

[0085] 50 parts magnesium

[0086] 30 parts cobalt

[0087] 0.15 parts carbon

[0088] 0.2 parts silicon

[0089] 0.4 parts manganese

[0090] 0.03 parts phosphorus

[0091] Chromium 1.4 parts

[0092] 1.5 parts nickel

[0093] 1.5 parts molybdenum

[0094] Three parts of rare earth elements.

[0095] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0096] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0097] The specific steps for raw material pretreatment are as follows:

[0098] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0099] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0100] The specific steps for mixing and melting are as follows:

[0101] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0102] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0103] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0104] The specific steps of hydrogenation are as follows:

[0105] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0106] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0107] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0108] In Example 4 of this invention, the magnesium-cobalt alloy hydride comprises, by mass, the following components:

[0109] 50 parts magnesium

[0110] 40 parts cobalt

[0111] 0.15 parts carbon

[0112] 0.2 parts silicon

[0113] 0.4 parts manganese

[0114] 0.03 parts phosphorus

[0115] Chromium 1.4 parts

[0116] 1.5 parts nickel

[0117] 1.5 parts molybdenum

[0118] Three parts of rare earth elements.

[0119] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0120] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0121] The specific steps for raw material pretreatment are as follows:

[0122] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0123] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0124] The specific steps for mixing and melting are as follows:

[0125] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0126] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0127] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0128] The specific steps of hydrogenation are as follows:

[0129] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0130] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0131] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0132] In Embodiment 5 of the present invention, the magnesium-cobalt alloy hydride comprises, by mass parts:

[0133] 60 parts magnesium

[0134] 30 parts cobalt

[0135] 0.15 parts carbon

[0136] 0.2 parts silicon

[0137] 0.4 parts manganese

[0138] 0.03 parts phosphorus

[0139] Chromium 1.4 parts

[0140] 1.5 parts nickel

[0141] 1.5 parts molybdenum

[0142] Three parts of rare earth elements.

[0143] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0144] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0145] The specific steps for raw material pretreatment are as follows:

[0146] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0147] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0148] The specific steps for mixing and melting are as follows:

[0149] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0150] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0151] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0152] The specific steps of hydrogenation are as follows:

[0153] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0154] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0155] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0156] In Embodiment 6 of the present invention, the magnesium-cobalt alloy hydride comprises, by mass parts:

[0157] 60 parts magnesium

[0158] 40 parts cobalt

[0159] 0.15 parts carbon

[0160] 0.2 parts silicon

[0161] 0.4 parts manganese

[0162] 0.03 parts phosphorus

[0163] Chromium 1.4 parts

[0164] 1.5 parts nickel

[0165] 1.5 parts molybdenum

[0166] Three parts of rare earth elements.

[0167] Magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

[0168] A method for manufacturing magnesium-cobalt alloy hydrides, the method including: raw material pretreatment, mixing and melting and hydrogenation treatment.

[0169] The specific steps for raw material pretreatment are as follows:

[0170] Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials;

[0171] Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

[0172] The specific steps for mixing and melting are as follows:

[0173] Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt.

[0174] Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture;

[0175] Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

[0176] The specific steps of hydrogenation are as follows:

[0177] Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid;

[0178] Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

[0179] The mixing and melting stirring temperature in step S3 is 2000℃ and the mixing and melting stirring time is 36h; the mixing and melting stirring temperature in step S5 is 2200℃ and the mixing and melting stirring time is 40h; the hydrogenation treatment time in step S6 is 8h; and the cooling temperature in step S7 is room temperature.

[0180] Depend on Figure 1 , Figure 2 and Figure 3 It can be seen that the melting point and HRC value of this magnesium-cobalt alloy hydride are both greater than those of ordinary alloys; when the mass ratio of magnesium to cobalt is about 1.5, the highest melting point is reached, which is about 2275℃; when the mass ratio of magnesium to cobalt is about 1.67, the HRC value reaches its maximum, which is about 82.9.

[0181] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnesium-cobalt alloy hydride, characterized in that: The magnesium-cobalt alloy hydride comprises, by mass parts: 40-60 parts magnesium 30-40 parts cobalt 0.1-0.2 parts carbon Silicon 0.15-0.3 parts Manganese 0.3-0.5 parts Phosphorus 0.02-0.04 parts Chromium 1-1.8 parts 1-2 parts nickel 1-2 parts of molybdenum 2-4 parts rare earth elements; The magnesium-cobalt alloy hydride is prepared by the following steps: raw material pretreatment, mixing and melting, and hydrogenation treatment; The specific steps of the hydrogenation process are as follows: The mixed melt obtained by mixing and melting is placed in a hydrogen atmosphere and subjected to hydrogenation treatment to obtain a hydrogenated melt. The hydrogenated molten liquid after hydrogenation is cooled down to obtain magnesium-cobalt alloy hydride products.

2. The magnesium-cobalt alloy hydride according to claim 1, characterized in that: The magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, and molybdenum are all in elemental form.

3. A method for manufacturing magnesium-cobalt alloy hydrides, characterized in that: It is used to prepare the magnesium-cobalt alloy hydride as described in claim 1 or 2, wherein the manufacturing method includes: raw material pretreatment, mixing and melting, and hydrogenation treatment.

4. The method for manufacturing magnesium-cobalt alloy hydrides according to claim 3, characterized in that: The specific steps for the raw material pretreatment are as follows: Step S1: Classify and set aside magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials; Step S2: The sorted magnesium, cobalt, carbon, silicon, manganese, phosphorus, chromium, nickel, molybdenum and rare earth raw materials are washed and dried with distilled water, and then placed in an oxygen-free environment.

5. The method for manufacturing magnesium-cobalt alloy hydrides according to claim 3, characterized in that: The specific steps of the mixing and melting process are as follows: Step S3: Weigh magnesium, cobalt, silicon, manganese, phosphorus, chromium, nickel and molybdenum according to the mass fractions, and mix and melt them using an electric heating melting device to obtain a first mixed melt. Step S4: Weigh the carbon and rare earth elements according to their mass fractions, and grind and mix them to obtain the first mixture; Step S5: Transfer the first mixture from step S2 to the mixed molten liquid from step S1, and continue mixing and stirring in the electric heating melting device to obtain the second mixed molten liquid.

6. The method for manufacturing magnesium-cobalt alloy hydrides according to claim 3, characterized in that: The specific steps of the hydrogenation process are as follows: Step S6: Pour hydrogen gas into the electrothermal melting device from step S5 to place the second mixed molten liquid in a hydrogen atmosphere for hydrogenation treatment to obtain hydrogenated molten liquid; Step S7: Cool the hydrogenated molten liquid after hydrogenation treatment in step S6 to obtain the magnesium-cobalt alloy hydride product.

7. The method for manufacturing magnesium-cobalt alloy hydrides according to claim 5, characterized in that: The mixing and melting stirring temperature in step S3 is 2000℃, and the mixing and melting stirring time is 36h. The mixing and melting stirring temperature in step S5 is 2200℃, and the mixing and melting stirring time is 40h.

8. The method for manufacturing magnesium-cobalt alloy hydrides according to claim 6, characterized in that: The hydrogenation treatment time in step S6 is 8 hours, and the cooling temperature in step S7 is room temperature.

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