Electrolytic cell anode plate head and manufacturing method thereof

Abstract

The invention belongs to the technical field of material processing, and particularly discloses an electrolytic cell anode plate head and a manufacturing method thereof.The electrolytic cell anode plate head comprises a metal matrix, a metal ceramic layer and a cover layer, the metal ceramic layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the metal ceramic layer; the metal ceramic layer comprises the following components in parts by weight: 5-10 parts of carbon powder, 15-25 parts of aluminum oxide powder, 25-35 parts of titanium powder, 8-16 parts of nano silicon dioxide powder and 25-40 parts of nickel-based alloy powder. According to the electrolytic cell anode plate head and the manufacturing method thereof, the electrolytic cell anode plate head has the advantages of high temperature resistance, corrosion resistance, oxidation resistance and the like, the service life of the anode plate head is greatly prolonged, resources are saved, and the reduction of the quality of metal produced by metal electrolysis is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of material processing, and in particular to an anode plate head of an electrolytic cell and a manufacturing method thereof. Background Art

[0002] An electrolytic cell consists of a cell body, an anode, and a cathode. Most use a diaphragm to separate the anode chamber and the cathode chamber. According to different electrolytes, it is divided into three categories: aqueous solution electrolytic cells, molten salt electrolytic cells, and non-aqueous solution electrolytic cells. When direct current passes through the electrolytic cell, an oxidation reaction occurs at the anode-solution interface, and a reduction reaction occurs at the cathode-solution interface to produce the desired product.

[0003] Currently, in the process of metal electrolysis production, carbon steel plates are commonly used to make the anode plate head, which is placed on the upper part of the graphite crucible to prevent damage to the upper edge of the graphite crucible during the electrolysis operation, thereby reducing the service life of the graphite crucible. However, the carbon steel anode plate head is used in a high-temperature, oxidation, and fluorine salt environment for a long time during metal electrolysis, and its surface is extremely easy to be corroded, resulting in the shedding of the steel plate on the surface of the anode plate head and failure; it may also increase the iron content of the metal electrolyte, increase the iron content of the pure metal, and reduce the quality of the metal. Summary of the Invention

[0004] The purpose of the present invention is to provide an anode plate head of an electrolytic cell and a manufacturing method thereof. The anode plate head of the electrolytic cell has the advantages of high temperature resistance, corrosion resistance, oxidation resistance, etc., greatly prolonging the service life of the anode plate head, saving resources, and avoiding reducing the metal quality of metal electrolysis production.

[0005] The present invention provides an anode plate head of an electrolytic cell, including a metal matrix, a metal ceramic layer, and a cover layer. The metal ceramic layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the metal ceramic layer. The metal ceramic layer includes the following components in parts by weight: 5-10 parts of carbon powder, 15-25 parts of alumina powder, 25-35 parts of titanium powder, 8-16 parts of nano-silica powder, and 25-40 parts of nickel-based alloy powder.

[0006] Preferably, the cover layer is cobalt-chromium alloy powder.

[0007] Preferably, the cobalt-chromium alloy powder is in the form of a solid solution alloy powder, including cobalt element and chromium element, and the mass ratio of cobalt element to chromium element is cobalt: cadmium = 0.4-2.

[0008] Preferably, the nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5: (10-15).

[0009] Preferably, the particle size of the nickel-based alloy powder is 600-800 nm.

[0010] Preferably, the preparation method of the nickel-based alloy powder is:

[0011] Step 1: Weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt;

[0012] Step 2: Weigh ammonium oxalate, place it in a beaker, add water and dissolve to obtain an ammonium oxalate solution;

[0013] Step 3: Mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir. After 2 minutes of stirring, add polyvinylpyrrolidone to the reaction system. Stop stirring after 0.5 hours of reaction, age for 1 hour, then filter, wash with hot water, and dry at 80 °C for 12 hours;

[0014] Step 4: Place the dried substance obtained in Step 3 in a crucible and put it into a tube furnace. Use a vacuum pump to evacuate three times to make the inside of the tube furnace in a vacuum state. Then, pass nitrogen for 0.5 hours at a flow rate of 1.5 L / min. After 0.5 hours, start heating the tube furnace, raise the temperature to 450 °C, calcine for 1.5 hours, with a nitrogen flow rate of 1.5 L / min. After calcination, wash and dry to obtain nickel-based alloy powder.

[0015] A method for manufacturing the anode plate head of an electrolytic cell, comprising the following steps:

[0016] S1: Make a solid model of the anode plate head casting from polymethyl methacrylate and open a gating system;

[0017] S2: Add the raw materials of the cermet layer to the aqueous solution of polyvinyl alcohol, mix evenly to make an aqueous cermet agent;

[0018] S3: Spray the aqueous cermet agent on the surface of the solid model of the casting to form a cermet layer, with a coating thickness of 8 - 15 mm, and then dry it at 30 - 50 °C;

[0019] S4: Spray a cover layer on the surface of the cermet layer, and then apply ordinary lost foam casting coating on the surface of the solid model of the casting to make a model, and dry it at 30 - 50 °C;

[0020] S5: Bury the model in the sand mold, with the gating system facing up, vibrate and compact, evacuate, and pour molten steel or high-temperature molten iron;

[0021] S6: Perform water toughening treatment on the casting, cut off the gating system, and then the anode plate head of the electrolytic cell is made.

[0022] Preferably, the spraying thickness of the cover layer is 40 - 80 μm.

[0023] The advantages and beneficial effects of the present invention adopting the above-mentioned anode plate head of the electrolytic cell and its manufacturing method are:

[0024] 1. By adding nickel-based alloy powder, the present invention improves the high-temperature resistance, corrosion resistance, and oxidation resistance of the anode plate head of the electrolytic cell, greatly prolongs the service life of the anode plate head, saves resources, and avoids reducing the metal quality in metal electrolysis production.

[0025] 2. The nickel-based alloy powder proposed by the present invention can enhance the high-temperature resistance, corrosion resistance, and ductility of nickel powder in alloy applications by introducing scandium elements into the nickel powder.

[0026] 3. By spraying cobalt-chromium solid solution alloy powder on the cermet coating to form a cover layer, the present invention improves the corrosion resistance and wear resistance of the cermet coating.

[0027] The technical solution of the present invention will be further described in detail below through examples. Detailed implementation mode

[0028] The technical solution of the present invention will be further described below through examples.

[0029] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs.

[0030] Unless otherwise defined, the reagents, equipment and other materials used in the present invention are all obtained from conventional commercial sources.

[0031] Example 1

[0032] An anode plate head of an electrolytic cell includes a metal matrix, a cermet layer, and a cover layer. The cermet layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the cermet layer. The cermet layer includes the following components in parts by weight: 5 parts of carbon powder, 15 parts of alumina powder, 25 parts of titanium powder, 8 parts of nano-silica powder, and 25 parts of nickel-based alloy powder.

[0033] The cover layer is cobalt-chromium alloy powder.

[0034] The cobalt-chromium alloy powder is in the form of a solid solution alloy powder, including cobalt element and chromium element, and the mass ratio of cobalt element to chromium element is 0.4.

[0035] The nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5:10.

[0036] The average particle size of the nickel-based alloy powder is 600 nm.

[0037] The preparation method of the nickel-based alloy powder is as follows:

[0038] Step 1, weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt;

[0039] Step 2: Weigh ammonium oxalate, place it in a beaker, add water, and dissolve it to obtain an ammonium oxalate solution;

[0040] Step 3: Mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir. After 2 minutes of starting stirring, add polyvinylpyrrolidone to the reaction system. Stop stirring after reacting for 0.5 h, age for 1 h, then filter, wash with hot water, and dry at 80 °C for 12 h;

[0041] Step 4: Place the dried substance obtained in Step 3 in a crucible and put it into a tube furnace. Use a vacuum pump to evacuate three times to make the inside of the tube furnace in a vacuum state. Then, pass nitrogen for 0.5 h at a flow rate of 1.5 L / min. After 0.5 h, start heating the tube furnace, raise the temperature to 450 °C, the calcination time is 1.5 h, and the nitrogen flow rate is 1.5 L / min. After the calcination is completed, wash and dry to obtain nickel-based alloy powder.

[0042] A manufacturing method for the anode plate head of an electrolytic cell, comprising the following steps:

[0043] S1: Make an anode plate head casting solid model from polymethyl methacrylate and open a gating system;

[0044] S2: Add metal ceramic layer raw materials to an aqueous solution of polyvinyl alcohol, mix evenly to make an aqueous metal ceramic agent;

[0045] S3: Spray the aqueous metal ceramic agent on the surface of the casting solid model to form a metal ceramic layer, with a coating thickness of 8 mm, and then dry it at 30 °C;

[0046] S4: Spray a cover layer on the surface of the metal ceramic layer, with a cover layer thickness of 40 μm. Then, brush ordinary lost foam casting coating on the surface of the casting solid model to make a model, and dry it at 30 °C;

[0047] S5: Bury the model in the sand mold, with the gating system facing up, vibrate to compact, evacuate, and pour molten steel or hot iron water;

[0048] S6: Perform water toughening treatment on the casting, cut off the gating system, and thus make the anode plate head of the electrolytic cell.

[0049] Example 2

[0050] An anode plate head of an electrolytic cell, comprising a metal matrix, a metal ceramic layer, and a cover layer. The metal ceramic layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the metal ceramic layer. The metal ceramic layer comprises the following components in parts by weight: 8 parts of carbon powder, 20 parts of alumina powder, 30 parts of titanium powder, 12 parts of nano-silica powder, and 31 parts of nickel-based alloy powder.

[0051] The cover layer is cobalt-chromium alloy powder.

[0052] The cobalt-chromium alloy powder is in the form of a solid solution alloy powder, including cobalt element and chromium element, and the mass ratio of cobalt element to chromium element is 1.

[0053] The nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5:13.

[0054] The average particle size of the nickel-based alloy powder is 700 nm.

[0055] The preparation method of the nickel-based alloy powder is as follows:

[0056] Step 1, weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt;

[0057] Step 2, weigh ammonium oxalate, place it in a beaker and add water to dissolve to obtain an ammonium oxalate solution;

[0058] Step 3, mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir, add polyvinylpyrrolidone to the reaction system 2 minutes after the start of stirring, stop stirring after reacting for 0.5 h, age for 1 h, then filter, wash with hot water, and dry at 80 °C for 12 h;

[0059] Step 4, place the dried substance obtained in Step 3 in a crucible and put it into a tubular furnace, evacuate three times with a vacuum pump to make the inside of the tubular furnace in a vacuum state, then pass nitrogen for 0.5 h at a flow rate of 1.5 L / min; after 0.5 h, start heating the tubular furnace, raise the temperature to 450 °C, the roasting time is 1.5 h, the nitrogen flow rate is 1.5 L / min, and after the roasting is completed, wash and dry to obtain the nickel-based alloy powder.

[0060] A manufacturing method of the anode plate head of an electrolytic cell includes the following steps:

[0061] S1. Make the anode plate head casting solid model from polymethyl methacrylate and open a riser system;

[0062] S2. Add the metal ceramic layer raw materials to the aqueous solution of polyvinyl alcohol, mix evenly and make a water-based metal ceramic agent;

[0063] S3. Spray the water-based metal ceramic agent on the surface of the casting solid model to form a metal ceramic layer, the coating thickness is 12 mm, and then dry it at 40 °C;

[0064] S4. Spray a cover layer on the surface of the metal ceramic layer, the cover layer thickness is 60 μm, and then brush the ordinary lost foam casting coating on the surface of the casting solid model to make a model, and dry it at 40 °C;

[0065] S5. Bury the model in the sand mold, with the gating system upward, vibrate and compact, evacuate, and pour molten steel or hot iron water;

[0066] S6. Perform solution treatment on the casting, cut and remove the gating and risering system, thus making the anode plate head of the electrolytic cell.

[0067] Example 3

[0068] An anode plate head of an electrolytic cell includes a metal matrix, a cermet layer, and a cover layer. The cermet layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the cermet layer. The cermet layer includes the following components in parts by weight: 10 parts of carbon powder, 25 parts of alumina powder, 35 parts of titanium powder, 16 parts of nano-silica powder, and 40 parts of nickel-based alloy powder.

[0069] The cover layer is cobalt-chromium alloy powder.

[0070] The cobalt-chromium alloy powder is in the form of a solid solution alloy powder, including cobalt element and chromium element, and the mass ratio of cobalt element to chromium element is 2.

[0071] The nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5:15.

[0072] The average particle size of the nickel-based alloy powder is 800 nm.

[0073] The preparation method of the nickel-based alloy powder is as follows:

[0074] Step 1, weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt;

[0075] Step 2, weigh ammonium oxalate, put it into a beaker, and add water to dissolve to obtain an ammonium oxalate solution;

[0076] Step 3, mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir, add polyvinylpyrrolidone to the reaction system 2 minutes after the start of stirring, stop stirring after reacting for 0.5 h, age for 1 h, then filter, wash with hot water, and dry at 80 °C for 12 h;

[0077] Step 4, put the dried substance obtained in Step 3 into a crucible and place it in a tube furnace, evacuate three times with a vacuum pump to make the inside of the tube furnace in a vacuum state, then pass nitrogen for 0.5 h with a flow rate of 1.5 L / min; after 0.5 h, start heating the tube furnace, raise the temperature to 450 °C, roast for 1.5 h with a nitrogen flow rate of 1.5 L / min, and after roasting, wash and dry to obtain the nickel-based alloy powder.

[0078] A manufacturing method of an anode plate head of an electrolytic cell includes the following steps:

[0079] S1. Make a solid model of the anode plate head casting from polymethyl methacrylate and open the gating and risering system;

[0080] S2. Add the metal-ceramic layer raw materials into the aqueous solution of polyvinyl alcohol, and make a water-based metal-ceramic agent after mixing evenly.

[0081] S3. Spray the water-based metal-ceramic agent on the surface of the casting solid model to form a metal-ceramic layer, with a coating thickness of 15 mm, and then dry it at 50 °C.

[0082] S4. Spray a cover layer on the surface of the metal-ceramic layer, with a cover layer thickness of 80 μm. Then, brush the ordinary lost foam casting coating on the surface of the casting solid model to make a model, and dry it at 50 °C.

[0083] S5. Bury the model in the sand mold, with the gating system upward, vibrate it solid, evacuate it, and pour molten steel or hot molten iron.

[0084] S6. Perform water toughening treatment on the casting, cut off the gating and riser system, and then make the anode plate head of the electrolytic cell.

[0085] Comparative Example 1

[0086] An anode plate head of an electrolytic cell includes a metal matrix and a metal-ceramic layer. The metal-ceramic layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the metal-ceramic layer. The metal-ceramic layer includes the following components in parts by weight: 8 parts of carbon powder, 20 parts of alumina powder, 30 parts of titanium powder, 12 parts of nano-silica powder, and 31 parts of nickel-based alloy powder.

[0087] The nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5:13.

[0088] The average particle size of the nickel-based alloy powder is 700 nm.

[0089] The preparation method of the nickel-based alloy powder is as follows:

[0090] Step 1, weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt.

[0091] Step 2, weigh ammonium oxalate, put it into a beaker, and add water to dissolve it to obtain an ammonium oxalate solution.

[0092] Step 3, mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir. After 2 min of stirring, add polyvinylpyrrolidone to the reaction system. Stop stirring after 0.5 h of reaction, age for 1 h, then filter, wash with hot water, and dry at 80 °C for 12 h.

[0093] Step 4: Place the dried substance obtained in Step 3 in a crucible and put it into a tube furnace. Evacuate the tube furnace three times using a vacuum pump to make the inside of the tube furnace in a vacuum state. Then, introduce nitrogen for 0.5 h at a flow rate of 1.5 L / min. After 0.5 h, start heating the tube furnace. Heat it up to 450 °C, with a roasting time of 1.5 h and a nitrogen flow rate of 1.5 L / min. After roasting, wash and dry to obtain nickel-based alloy powder.

[0094] A method for manufacturing the anode plate head of an electrolytic cell, comprising the following steps:

[0095] S1: Make a solid model of the anode plate head casting from polymethyl methacrylate and open a gating system.

[0096] S2: Add the metal ceramic layer raw materials to an aqueous solution of polyvinyl alcohol, mix evenly, and make an aqueous metal ceramic agent.

[0097] S3: Spray the aqueous metal ceramic agent on the surface of the solid model of the casting to form a metal ceramic layer, with a coating thickness of 12 mm, and then dry it at 40 °C.

[0098] S4: Brush the surface of the solid model of the casting with a common lost foam casting coating to make a model, and dry it at 40 °C.

[0099] S5: Bury the model in the sand mold, with the gating system facing up, vibrate it solid, evacuate it, and pour molten steel or hot iron.

[0100] S6: Perform water toughening treatment on the casting, cut off the gating system, and thus make the anode plate head of the electrolytic cell.

[0101] Comparative Example 2

[0102] An anode plate head of an electrolytic cell, comprising a metal matrix and a metal ceramic layer. The metal ceramic layer adheres to the surface of the metal matrix. The metal ceramic layer comprises the following components in parts by weight: 8 parts of carbon powder, 20 parts of alumina powder, 30 parts of titanium powder, 12 parts of nano-silica powder, and 31 parts of boron carbide powder.

[0103] A method for manufacturing the anode plate head of an electrolytic cell, comprising the following steps:

[0104] S1: Make a solid model of the anode plate head casting from polymethyl methacrylate and open a gating system.

[0105] S2: Add the metal ceramic layer raw materials to an aqueous solution of polyvinyl alcohol, mix evenly, and make an aqueous metal ceramic agent.

[0106] S3: Spray the aqueous metal ceramic agent on the surface of the solid model of the casting to form a metal ceramic layer, with a coating thickness of 12 mm, and then dry it at 40 °C.

[0107] S4. Then, apply ordinary lost foam casting coating on the surface of the casting solid model to make a model, and dry it at 40°C.

[0108] S5. Bury the model in the sand mold with the gating system facing up, vibrate it solid, evacuate the air, and pour molten steel or hot iron.

[0109] S6. Perform water toughening treatment on the casting, cut off the riser and gating system, and then the anode plate head of the electrolytic cell is made.

[0110] Perform performance tests on the anode plate heads of the electrolytic cells obtained in Examples 1 - 3 and Comparative Examples 1 - 2, and the test results are shown in Table 1.

[0111] Corrosion resistance: Use a salt spray testing machine. Set the experimental temperature in the test chamber to 35°C, the pH value of the salt solution to 6.5, the spray rate to 1.4 ml / (80 cm 2 ·h), and the test period to 480 h.

[0112] Wear resistance: The room - temperature wear resistance test of the coating is carried out by a ball - on - disk wear test on a WIM - 1E micro - friction and wear testing machine.

[0113] Table 1 Performance test results

[0114] Corrosion resistance (h) Wear resistance Example 1 258 Good Example 2 264 Good Example 3 255 Good Comparative Example 1 182 Relatively good Comparative Example 2 154 Poor

[0115] After using the anode plate heads of the electrolytic cells obtained in Examples 1 - 3 and Comparative Examples 1 - 2, record the specific usage time, and the results are shown in Table 2.

[0116] Table 2 Comparison results of usage time

[0117] Detection index Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Service life (months) 23.8 24.7 23.5 16.2 13.5

[0118] Therefore, the present invention adopts the above - mentioned anode plate head of the electrolytic cell and its manufacturing method. The anode plate head of the electrolytic cell has the advantages of high temperature resistance, corrosion resistance, oxidation resistance, etc., greatly prolongs the service life of the anode plate head, saves resources, and avoids reducing the metal quality of metal electrolysis production.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions of the present invention or make equivalent replacements, and these modifications or equivalent replacements do not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An anode plate head of an electrolytic cell, characterized in that: It includes a metal matrix, a cermet layer, and a cover layer. The cermet layer adheres to the surface of the metal matrix, and the cover layer is located on the surface of the cermet layer. The cermet layer comprises the following components in parts by weight: 5-10 parts of carbon powder, 15-25 parts of alumina powder, 25-35 parts of titanium powder, 8-16 parts of nano-silica powder, and 25-40 parts of nickel-based alloy powder.

2. The anode plate head of an electrolytic cell according to claim 1, characterized in that: The cover layer is cobalt-chromium alloy powder.

3. The anode plate head of an electrolytic cell according to claim 2, characterized in that: The cobalt-chromium alloy powder is in the form of a solid solution alloy powder, including cobalt element and chromium element, and the mass ratio of cobalt element to chromium element is cobalt: cadmium = 0.4-2.

4. A head of an anode plate of an electrolytic cell according to claim 1, characterized in that: The nickel-based alloy powder includes nickel and scandium elements, and the mass ratio of nickel element to scandium element is 1.5:(10-15).

5. The anode plate head of an electrolytic cell according to claim 1, wherein: The particle size of the nickel-based alloy powder is 600-800 nm.

6. The anode plate head of an electrolytic cell according to claim 1, characterized in that, The preparation method of the nickel-based alloy powder is as follows: Step 1, weigh nickel chloride hexahydrate and scandium chloride hexahydrate, put them into a beaker, add water until dissolved and mixed evenly to obtain a mixed aqueous solution containing scandium salt and nickel salt; Step 2, weigh ammonium oxalate, place it in a beaker and add water to dissolve to obtain an ammonium oxalate solution; Step 3, mix the mixed aqueous solution containing scandium salt and nickel salt with the ammonium oxalate solution in a beaker, stir, and add polyvinylpyrrolidone to the reaction system 2 minutes after the start of stirring. Stop stirring after reacting for 0.5 h, age for 1 h, then filter, wash with hot water, and dry at 80 °C for 12 h; Step 4, place the dried substance obtained in Step 3 in a crucible and put it into a tube furnace. Use a vacuum pump to evacuate three times to make the inside of the tube furnace in a vacuum state, then pass nitrogen for 0.5 h with a flow rate of 1.5 L / min; After 0.5 h, start to heat up the tube furnace, heat up to 450 °C, the roasting time is 1.5 h, the nitrogen flow rate is 1.5 L / min, and after the roasting is completed, wash and dry to obtain the nickel-based alloy powder.

7. The manufacturing method of an electrolytic cell anode plate head according to any one of claims 1-6, characterized in that, It includes the following steps: S1. Make an anode plate head casting solid model from polymethyl methacrylate and open a gating system; S2. Add the cermet layer raw materials to an aqueous solution of polyvinyl alcohol, mix evenly and then make an aqueous cermet agent; S3. Spray the aqueous cermet agent on the surface of the casting solid model to form a cermet layer, with a coating thickness of 8-15 mm, and then dry at 30-50 °C; S4. Spray the cover layer on the surface of the cermet layer, and then brush the ordinary lost foam casting coating on the surface of the casting solid model to make a model, and dry at 30-50 °C; S5. Bury the model in the sand mold, with the gating system upward, vibrate and compact, evacuate, and pour molten steel or hot iron water; S6. Carry out water toughening treatment on the casting, cut off the gating system, and then make the electrolytic cell anode plate head.

8. The manufacturing method of an electrolytic cell anode plate head according to claim 7, characterized in that: The spraying thickness of the cover layer is 40-80 μm.