Energy-saving pad for boiling water and preparation method therefor

Abstract

Disclosed in the present invention are an energy-saving pad for boiling water and a preparation method therefor. The method comprises the following steps: weighing stainless steel powder, copper powder, nano-titanium oxide, kaolin, diatomite, carbon nanotubes, and syrup having a particular viscosity as preparation raw materials according to a particular ratio, and putting the preparation raw materials into a mixer for mixing to generate a mixture; drying the mixture; crushing the dried mixture; performing superfine grinding on the crushed mixture; selecting a fine mixture having a particle size smaller than 100 meshes from the mixture having undergone the superfine grinding; performing primary pressing on the fine mixture, to generate an energy-saving pad blank; and sequentially subjecting the energy-saving pad blank to sintering, secondary pressing, deburring, and oxide layer removal treatment, to obtain a finished product. According to the present invention, an energy-saving pad for boiling water having a microporous structure and a good thermal conductivity can be prepared, so as to improve the efficiency of boiling water and save the energy consumption for boiling water.

Description

Energy-saving pad for boiling water and preparation method thereof

[0001] This application claims the benefit of Chinese patent application No. 2023112301117, filed on September 22, 2023. This application incorporates the entirety of the aforementioned Chinese patent application. Technical Field

[0002] The present invention belongs to the technical field of daily necessities, and in particular relates to an energy-saving pad for boiling water, and a preparation method of the energy-saving pad for boiling water. Background Art

[0003] In daily life, people use appliances like kettles and water heaters to boil tap water for drinking water. Common materials for water heaters include metal, ceramic, and glass, and common shapes include flat, rounded, rectangular, and spherical. Regardless of the material and shape, the water heating process is largely the same, primarily relying on layer-by-layer conduction. First, an open flame or electric iron heats the bottom of the water heater, heating the water at the bottom. Then, the water at the bottom heats the water in the middle of the water heater through heat conduction. Finally, the water in the middle heats the water higher up, completing the boiling process. The inventors believe this is a relatively inefficient heat conduction method, wasting some energy. Therefore, developing a new water heater that can improve water heating efficiency and save energy by improving heat conduction is a research area that those skilled in the art need to explore.

[0004] Summary of the Invention

[0005] The first purpose of the present invention is to provide a method for preparing an energy-saving pad for water boiling, which can prepare an energy-saving pad for water boiling with a rich microporous structure and good thermal conductivity, so as to improve the water boiling efficiency and save water boiling energy consumption.

[0006] The second object of the present invention is to provide an energy-saving pad for boiling water prepared by the above-mentioned preparation method.

[0007] The first technical solution provided by the present invention is a method for preparing an energy-saving pad for boiling water, which comprises the following steps:

[0008] Step 100: Weighing 380-400 parts by mass of stainless steel powder, 160-180 parts by mass of copper powder, 60-80 parts by mass of nano-titanium oxide, 14-17 parts by mass of kaolin, 4-6 parts by mass of diatomaceous earth, 0.3-1 parts by mass of carbon nanotubes, and 30-40 parts by mass of syrup with a relative viscosity of 2900-3100 mPa·s as raw materials, respectively, and placing the raw materials into a blender and stirring to generate a mixture;

[0009] Step 200: drying the mixed material;

[0010] Step 300: crushing the dried mixed material;

[0011] Step 400: ultrafine grinding the crushed mixed material;

[0012] Step 500: Screening out mixed fine material with a particle size less than 100 mesh from the ultrafinely ground mixed material;

[0013] Step 600: pressing the mixed fine material into sheets to produce energy-saving gasket blanks;

[0014] Step 700: The energy-saving gasket blank is subjected to sintering, secondary pressing, deburring and oxidation layer removal in sequence to obtain an energy-saving gasket for water heating.

[0015] Preferably, the syrup in step 100 comprises: 38%-42% fructose syrup, 52%-55% glucose syrup, 5%-7% oligosaccharide syrup, and the remainder is water.

[0016] Preferably, step 200 includes: placing the mixture into a ceramic dish, placing the dish in an oven and baking the dish at a temperature of 100° C. for 290-310 minutes.

[0017] Preferably, step 300 includes: placing the dried mixed material into a hammer crusher for six rounds of hammer crushing, each round lasting 10 minutes.

[0018] Preferably, step 400 includes: placing the crushed mixed material into a Raymond mill to perform ultrafine grinding for no less than 60 minutes.

[0019] Preferably, step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size of less than 100 mesh.

[0020] Preferably, step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0021] Preferably, step 700 includes: loading the energy-saving gasket blank into a ceramic mold frame and placing it into a muffle furnace, gradually heating the muffle furnace to 825°C to sinter the energy-saving gasket blank for 600 minutes, taking out the energy-saving gasket blank after sintering, and performing secondary pressing, deburring and oxide layer removal treatments in sequence to produce an energy-saving gasket for boiling water.

[0022] The second technical solution provided by the present invention is an energy-saving pad for boiling water, which is prepared by any of the preparation methods described above. In practice, the energy-saving pad for boiling water is configured to be installed at the bottom of a heating container such as a kettle.

[0023] Compared to existing technologies, the energy-saving water-boiling mat prepared by the preparation method provided by the present invention has excellent thermal conductivity and stability. Its surface is rich in microporous structures. When placed on the bottom of a kettle, it can quickly generate a large number of tiny bubbles within the microporous structure during the boiling process. These bubbles form a jet during the upward floating process, thereby quickly transferring heat from the bottom layer of the kettle to the upper layer, shortening the boiling time and saving energy. Furthermore, the method provided by the present invention has the technical advantages of being simple to operate, with readily available raw materials, and suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is an enlarged schematic diagram of the structure of the energy-saving pad for boiling water according to the present invention under a microscope.

[0025] FIG2 is a schematic diagram showing the working state of the energy-saving pad for boiling water of the present invention when it is placed in a kettle.

[0026] In the figure, the corresponding reference numerals of the various components are as follows: 100, energy-saving pad for boiling water; 200, standard water boiling container. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] In the description of the present invention, terms such as "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. References to "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0029] Please refer to Figure 1.

[0030] Example 1:

[0031] A method for preparing an energy-saving pad 100 for boiling water comprises the following steps:

[0032] Step 100: 380 parts by mass of stainless steel powder, 160 parts by mass of copper powder, 60 parts by mass of nano-titanium oxide, 14 parts by mass of kaolin, 4 parts by mass of diatomaceous earth, 0.3 parts by mass of carbon nanotubes, and 30 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 38% fructose syrup, 55% glucose syrup, 5% oligosaccharide syrup, and the remainder is water.

[0033] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290 minutes.

[0034] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0035] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0036] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0037] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0038] Step 700: The energy-saving gasket blank is loaded into a ceramic mold frame and placed in a muffle furnace. The muffle furnace is gradually heated (here, the gradient heating specifically refers to heating to 200°C and keeping the temperature constant for 30 minutes, then heating to 400°C and keeping the temperature constant for 30 minutes, then heating to 600°C and keeping the temperature constant for 30 minutes, and finally heating to 825°C. By adopting this heating method, the product can be effectively prevented from cracking and deformation during firing.) to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled, and secondary pressing, deburring and oxide layer removal are performed in sequence to obtain the energy-saving pad 100 for boiling water.

[0039] Example 2:

[0040] A method for preparing an energy-saving pad 100 for boiling water comprises the following steps:

[0041] Step 100: Weigh 400 parts by mass of stainless steel powder, 180 parts by mass of copper powder, 80 parts by mass of nano-titanium oxide, 17 parts by mass of kaolin, 6 parts by mass of diatomaceous earth, 1 part by mass of carbon nanotubes, and 40 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s as raw materials, and place the raw materials into a blender and stir to produce a mixture. The syrup comprises: 42% fructose syrup, 52% glucose syrup, 5% oligosaccharide syrup, and the remainder is water.

[0042] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 310 minutes.

[0043] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0044] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0045] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0046] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0047] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain an energy-saving gasket 100 for water heating.

[0048] Example 3:

[0049] A method for preparing an energy-saving pad 100 for boiling water comprises the following steps:

[0050] Step 100: 390 parts by mass of stainless steel powder, 170 parts by mass of copper powder, 70 parts by mass of nano-titanium oxide, 15 parts by mass of kaolin, 5 parts by mass of diatomaceous earth, 0.6 parts by mass of carbon nanotubes, and 35 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 40% fructose syrup, 52% glucose syrup, 7% oligosaccharide syrup, and the remainder is water.

[0051] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290-310 minutes.

[0052] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0053] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0054] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0055] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0056] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain an energy-saving gasket 100 for water heating.

[0057] During use, the energy-saving water-boiling mat 100 prepared in Examples 1-3 is placed on the bottom layer of a kettle. During the heating process, the abundant microporous structure on the surface of the energy-saving water-boiling mat 100 generates a large number of tiny bubbles that eventually rise to the surface as the water temperature rises. These bubbles are small, evenly distributed across the mat surface, and exhibit minimal water resistance. The resulting bubble jet rapidly transfers heat from the bottom of the kettle to the surface water, creating an upward and downward circulation within the bubble jet. This uniformly heats the water within the kettle, improving energy utilization and ultimately achieving rapid boiling.

[0058] The following comparison experiment of water heating using the energy-saving pad 100 is shown in Figures 1-2:

[0059] A glass kettle with a bottom diameter of 110 mm, a height of 205 mm, a mouth diameter of 80 mm, a capacity of 1500 ml, and 1000 ml of water poured therein is used as the standard water boiling container 200 .

[0060] After 20 rounds of experiments:

[0061] Before the water-boiling energy-saving pad 100 is placed, the average time it takes for the standard water-boiling container 200 to boil water is 260 seconds.

[0062] The energy-saving water-boiling mats 100 obtained in Examples 1-3 were uniformly configured as circular sheets with a diameter of 80 mm and a bottom thickness of 1 mm (in practice, the shape and thickness of the energy-saving water-boiling mats 100 can be adjusted as needed). The energy-saving water-boiling mats 100 obtained in Examples 1-3 were placed at the bottom of the standard water-boiling container 200 and the water was boiled.

[0063] After 20 rounds of experiments:

[0064] The standard water-boiling container 200 containing the energy-saving pad 100 for boiling water obtained in Example 1 takes an average of 221 seconds to boil water.

[0065] The standard water-boiling container 200 containing the energy-saving pad 100 obtained in Example 2 takes an average of 223 seconds to boil water.

[0066] The standard water-boiling container 200 containing the energy-saving water-boiling pad 100 obtained in Example 3 takes an average of 224 seconds to boil water.

[0067] Therefore, after adding the energy-saving water-boiling pad 100 prepared by the present invention, the time taken for the standard water-boiling container 200 to boil water is shortened by about 15%.

[0068] The following water boiling experiments were carried out using the pads prepared by adjusting the method of this scheme as comparison examples.

[0069] Comparison Example 1:

[0070] A pad body is prepared by the following steps:

[0071] Step 100: 400 parts by mass of stainless steel powder, 80 parts by mass of nano-titanium oxide, 17 parts by mass of kaolin, 6 parts by mass of diatomaceous earth, and 35 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 42% fructose syrup, 52% glucose syrup, 5% oligosaccharide syrup, and the remainder is water.

[0072] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290-310 minutes.

[0073] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0074] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0075] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0076] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0077] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain a gasket body.

[0078] The pad obtained in Comparative Example 1 was placed at the bottom of the standard water-boiling container 200 and subjected to 20 rounds of water-boiling experiments:

[0079] The average time it took to boil water was 249 seconds. Visual observation also revealed a significant reduction in the number of bubbles generated on the pad surface, with the bubble appearance delayed by an average of approximately 10 seconds. Therefore, the pad produced in this comparative example exhibited significantly reduced thermal conductivity and bubble generation.

[0080] Comparison Example 2;

[0081] A pad body is prepared by the following steps:

[0082] Step 100: 390 parts by mass of stainless steel powder, 70 parts by mass of nano-titanium oxide, 15 parts by mass of kaolin, 0.6 parts by mass of carbon nanotubes, and 35 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 40% fructose syrup, 52% glucose syrup, 7% oligosaccharide syrup, and the remainder is water.

[0083] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290-310 minutes.

[0084] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0085] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0086] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0087] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0088] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain a gasket body.

[0089] The pad obtained in Comparative Example 2 was placed at the bottom of the standard water-boiling container 200 and subjected to 20 rounds of water-boiling experiments:

[0090] The average time it took to boil water was 239 seconds. Visual observation also revealed a significant reduction in the number of bubbles generated on the pad surface, with the bubble appearance delayed by an average of approximately 8 seconds. Therefore, the pad produced in this comparative example significantly reduced both thermal conductivity and bubble generation.

[0091] Comparison Example 3:

[0092] A pad body is prepared by the following steps:

[0093] Step 100: 400 parts by mass of stainless steel powder, 180 parts by mass of copper powder, 80 parts by mass of nano-titanium oxide, 17 parts by mass of kaolin, 6 parts by mass of diatomaceous earth, and 35 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 42% fructose syrup, 52% glucose syrup, 5% oligosaccharide syrup, and the remainder is water.

[0094] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290-310 minutes.

[0095] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0096] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0097] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0098] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0099] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain a gasket body.

[0100] The pad obtained in Comparative Example 3 was placed at the bottom of the standard water-boiling container 200 and subjected to 20 rounds of water-boiling experiments:

[0101] The average time it takes to boil water is 230 seconds. At the same time, according to visual observation, the number of bubbles generated on the surface of the pad body has decreased. Therefore, the bubble generation rate of the pad body prepared by the formula of this comparative example has been reduced to a certain extent.

[0102] Comparison Example 4:

[0103] A pad body is prepared by the following steps:

[0104] Step 100: 390 parts by mass of stainless steel powder, 150 parts by mass of aluminum powder, 70 parts by mass of nano-titanium oxide, 0.6 parts by mass of carbon nanotubes, 5 parts by mass of diatomaceous earth, and 35 parts by mass of syrup having a relative viscosity of 2900-3100 mPa·s are weighed as raw materials, and the raw materials are placed in a blender and stirred to produce a mixture. The syrup comprises: 40% fructose syrup, 52% glucose syrup, 7% oligosaccharide syrup, and the remainder is water.

[0105] Step 200: Pour the mixture into a ceramic dish, place it in an oven and bake it at 100° C. for 290-310 minutes.

[0106] Step 300: The dried mixed material is placed in a hammer crusher for six rounds of hammer crushing, with each round lasting 10 minutes.

[0107] Step 400: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

[0108] Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

[0109] Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to produce an energy-saving gasket embryo.

[0110] Step 700: Load the energy-saving gasket blank into a ceramic mold frame and place it into a muffle furnace. The muffle furnace is gradually heated to 825°C to sinter the energy-saving gasket blank for 600 minutes. After sintering, the energy-saving gasket blank is taken out and cooled. Secondary pressing, deburring and oxide layer removal are performed in sequence to obtain a gasket body.

[0111] The pad obtained in Comparative Example 4 was placed at the bottom of the standard water-boiling container 200 and subjected to 20 rounds of water-boiling experiments:

[0112] The average time it takes to boil water is 209 seconds. The pad produced in this comparative example exhibits good thermal conductivity. However, during safety experiments, the inventors discovered that the aluminum ion content in the water after boiling was >0.2 mg / L. Therefore, this solution does not meet drinking water safety standards and cannot be used long-term.

[0113] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A method for preparing an energy-saving pad for water heating, characterized in that: The steps include: Step 100: 380-400 parts by mass of stainless steel powder, 160-180 parts by mass of copper powder, 60-80 parts by mass of nano titanium oxide, 14-17 parts by mass of kaolin, 4-6 parts by mass of diatomaceous earth, 0.3-1 parts by mass of carbon nanotubes, and 30-40 parts by mass of syrup with a relative viscosity of 2900-3100 mPa·s are weighed respectively as preparation raw materials, and the preparation raw materials are put into a blender and stirred to generate a mixture; Step 200: drying the mixed material; Step 300: crushing the dried mixed material; Step 400: ultra-fine grinding the crushed mixed material; Step 500: Screening out mixed fine material with a particle size less than 100 mesh from the ultrafinely ground mixed material; Step 600: tableting the mixed fine material to generate energy-saving gasket embryos; Step 700: The energy-saving gasket blank is subjected to sintering, secondary pressing, burr removal and oxide layer removal in sequence to obtain an energy-saving gasket for water heating.

2. The preparation method according to claim 1, characterized in that: The syrup in step 100 includes: 38%-42% fructose syrup, 52%-55% glucose syrup, 5%-7% oligosaccharide syrup, and the rest is water.

3. The preparation method according to claim 1, characterized in that: Step 200 includes: placing the mixture into a ceramic dish, placing the dish in an oven and baking the dish at 100° C. for 290-310 minutes.

4. The preparation method according to claim 1, characterized in that: Step 300 includes: placing the dried mixed material into a hammer crusher for six rounds of hammer crushing, each round lasting 10 minutes.

5. The preparation method according to claim 1, characterized in that: Step 400 includes: placing the crushed mixed material into a Raymond mill for ultrafine grinding for no less than 60 minutes.

6. The preparation method according to claim 1, characterized in that: Step 500 includes: placing the ultrafinely ground mixed material into a vibrating screen, and screening out mixed fine material with a particle size less than 100 mesh.

7. The preparation method according to claim 1, characterized in that: Step 600 includes: placing the mixed fine material into a static pressure mold for tableting to form an energy-saving gasket embryo.

8. The preparation method according to claim 1, characterized in that: Step 700 includes: loading the energy-saving gasket blank into a ceramic mold frame and placing it into a muffle furnace, gradually increasing the temperature of the muffle furnace to 825°C to sinter the energy-saving gasket blank for 600 minutes, taking out the energy-saving gasket blank after sintering, and performing secondary pressing, deburring and oxide layer removal in sequence to obtain an energy-saving gasket for water heating.

9. An energy-saving pad for boiling water, characterized in that: The method is prepared according to any one of claims 1 to 8.

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