A formula and preparation process of carbon ceramic products

Abstract

The invention discloses a formula and preparation process of a carbon ceramic product, belonging to the technical field of carbon ceramic products. The preparation method of the invention is simple and efficient, and the prepared carbon ceramic products exhibit excellent alkali resistance, wear resistance, oil resistance, corrosion resistance and collision resistance. In addition, these products can withstand the application of high-temperature glaze like traditional ceramics, and are not only environmentally friendly and safe, but also widely used. They are suitable for various heating sources such as induction cookers, electric ceramic stoves and gas.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon ceramic products, and specifically relates to a formula and a preparation process of a carbon ceramic product. Background Art

[0002] Bamboo plants grow fast and are easy to regenerate. They are renewable resources. Their bamboo charcoal is of excellent quality and is widely used in many fields, including high-tech fields. Deep processing and utilization of bamboo charcoal can alleviate resource pressure and promote environmentally friendly and sustainable development. my country is promoting the construction of an environmentally friendly society and strongly supports resource-saving technological transformation and product development. Bamboo has better performance than wood. Substituting wood for bamboo can reduce felling and improve performance. Bamboo charcoal products are widely used, but pure bamboo charcoal is easily damaged. Carbon pottery made with ceramic technology improves strength and hardness and is suitable for making cookware, containers, etc. Carbon pottery cookware can evenly heat food, purify water, degrade pesticides and antibiotics, release trace elements, and reduce purine content. Carbon pottery products have broad prospects in the fields of cookware and health. Summary of the invention

[0003] The purpose of the present invention is to provide a formula and preparation process of a carbon ceramic product to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a formula of a carbon ceramic product capable of generating ultra-strong far infrared rays, the formula consisting of the following components in percentage by weight:

[0005] Charcoal powder: 55% ~ 69%;

[0006] Carboxyl cellulose: 5-8%;

[0007] Lignin: 3-9%;

[0008] Kaolin: 5% to 10%;

[0009] Potassium feldspar: 3% to 8%;

[0010] Resin: 10% to 25%;

[0011] Furthermore, the formulation further comprises additional softened water, the weight percentage of which is 11% to 25% of the total weight of the formulation;

[0012] As a further preferred embodiment of the present technical solution: the carbon powder is preferably high-quality carbon powder with high thermal stability and good far-infrared radiation performance, and the carboxyl cellulose is used as a binder to improve the molding strength and structural stability of the carbon ceramic product;

[0013] As a further preferred embodiment of the present technical solution: the lignin as a natural organic additive helps to improve the combustion performance and far-infrared radiation efficiency of the carbon-ceramic product, and the kaolin as an inorganic filler can enhance the hardness and heat resistance of the carbon-ceramic product;

[0014] As a further preferred embodiment of the present technical solution: the potassium feldspar as a flux is helpful to form a glass phase during the firing process, thereby improving the density and crack resistance of the carbon ceramic product; the resin as a molding aid can improve the plasticity and molding efficiency of the carbon ceramic product;

[0015] As a further preferred embodiment of the present technical solution: the softened water is used to adjust the humidity and fluidity of the mixture to ensure that the carbon ceramic product has suitable process performance during the molding process;

[0016] As a further preferred embodiment of the present technical solution: the preparation process comprises the following steps:

[0017] Step 1: weigh each component according to the formula ratio described in claim 1;

[0018] Step 2: Evenly mix the carbon powder, carboxyl cellulose, lignin, kaolin, potassium feldspar and resin to form a mixed material;

[0019] Step 3: Add softened water to the evenly mixed dry material and continue stirring until a uniform wet material is formed;

[0020] Step 4: feeding the wet material into a mold, and forming the desired carbon ceramic product body through pressing, rolling, grouting, injection molding or other molding processes;

[0021] Step 5: Dry the green body to remove excess water;

[0022] Step 6: Firing the dried green body to obtain a carbon ceramic product capable of producing ultra-strong far-infrared rays;

[0023] As a further preferred embodiment of the present technical solution: the firing process in step 6 can be roughly divided into a heating stage and a cooling stage:

[0024] a) Heating stage: The starting temperature is 1100℃, marked as "heating and discharge". This stage involves the preheating of raw materials, the removal of volatiles and the formation of the preliminary structure of carbon-ceramic products.

[0025] b) Cooling stage: The cooling stage starts from the peak temperature and lasts until it drops to 270°C at about 540 minutes. This stage involves further solidification of the carbon ceramic product structure, transformation of the crystal phase, and optimization of the far-infrared radiation performance. The “cooling zone” (such as Figure 1The figure shows that the cooling rate needs to be specially controlled at this stage to ensure that the carbon ceramic product will not crack or deteriorate in performance due to the rapid temperature change.

[0026] As a further preferred embodiment of the present technical solution: the firing temperature and firing time of step six are adjusted according to the specific formula and the required performance of the carbon-ceramic product to ensure that the carbon-ceramic product has excellent far-infrared radiation performance and structural stability.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The preparation method of the present invention is simple and efficient. The prepared carbon ceramic products show excellent alkali resistance, wear resistance, oil resistance, corrosion resistance and collision resistance. In addition, these products can withstand the application of high-temperature glaze like traditional ceramics. They are not only environmentally friendly and safe, but also widely used. They are suitable for various heating sources such as induction cookers, electric ceramic stoves and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention provides a temperature line diagram of the formula and preparation process of a carbon ceramic product. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example

[0032] See also Figure 1 As shown, the present invention provides a technical solution: a formula of a carbon ceramic product capable of generating ultra-strong far infrared rays, the formula consisting of the following components in weight percentage:

[0033] Charcoal powder: 55% ~ 69%;

[0034] Carboxyl cellulose: 5-8%;

[0035] Lignin: 3-9%;

[0036] Kaolin: 5% to 10%;

[0037] Potassium feldspar: 3% to 8%;

[0038] Resin: 10% to 25%;

[0039] Furthermore, the formula further comprises additional softened water, the weight percentage of which is 11% to 25% of the total weight of the above formula.

[0040] In this embodiment, specifically: the carbon powder is preferably high-quality carbon powder with high thermal stability and good far-infrared radiation performance, and carboxyl cellulose is used as a binder to improve the molding strength and structural stability of the carbon ceramic product.

[0041] In this embodiment, specifically: lignin as a natural organic additive is helpful to improve the combustion performance and far-infrared radiation efficiency of the carbon-ceramic product, and kaolin as an inorganic filler can enhance the hardness and heat resistance of the carbon-ceramic product.

[0042] In this embodiment, specifically: potassium feldspar as a flux is helpful to form a glass phase during the firing process, thereby improving the density and crack resistance of the carbon ceramic product, and resin as a molding aid can improve the plasticity and molding efficiency of the carbon ceramic product.

[0043] In this embodiment, specifically: softened water is used to adjust the humidity and fluidity of the mixture to ensure that the carbon ceramic product has suitable process performance during the molding process.

[0044] In this embodiment, the specific preparation process includes the following steps:

[0045] Step 1: weigh each component according to the formula ratio of claim 1;

[0046] Step 2: Evenly mix the carbon powder, carboxyl cellulose, lignin, kaolin, potassium feldspar and resin to form a mixed material;

[0047] Step 3: Add softened water to the evenly mixed dry material and continue stirring until a uniform wet material is formed;

[0048] Step 4: feeding the wet material into a mold, and forming the desired carbon ceramic product body through pressing, rolling, grouting, injection molding or other molding processes;

[0049] Step 5: Dry the green body to remove excess water;

[0050] Step six: sinter the dried green body to obtain a carbon ceramic product that can produce ultra-strong far-infrared lines.

[0051] In this embodiment, specifically: the firing temperature and firing time of step six are adjusted according to the specific formula and the required performance of the carbon ceramic product to ensure that the carbon ceramic product has excellent far-infrared radiation performance and structural stability.

[0052] Working principle or structural principle: First, mix the raw material ingredients evenly according to the formula ratio to form a mixture, then send the mixture into the mold, and make the desired shape of the product through the pressing process. Then the product is placed in a drying room for drying to remove excess moisture, and then enters the firing stage. The starting temperature of the heating process is set to 1100°C. This stage mainly involves the preheating treatment of the raw materials, the effective removal of volatiles, and the formation of the initial structure of the carbon ceramic product. When the product reaches the predetermined sintering temperature, it enters the cooling stage, starting from the peak temperature, and slowly drops to 270°C after about 540 minutes of careful regulation. During this cooling process, the structure of the carbon ceramic product will be further solidified, the crystal phase may change, and the far-infrared radiation performance may also be optimized, especially in the "cooling zone" (such as Figure 1 The cooling rate must be strictly controlled to prevent cracks or performance degradation in the product due to rapid temperature changes. Finally, the sintered products must be strictly inspected for quality to ensure they meet the standards before being packaged and put into storage.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A formula of a carbon ceramic product, characterized in that: The formulation consists of the following components in weight percentage: Charcoal powder: 55% ~ 69%; Carboxyl cellulose: 5-8%; Lignin: 3-9%; Kaolin: 5% to 10%; Potassium feldspar: 3% to 8%; Resin: 10% to 25%; Furthermore, the formula further comprises additional softened water, the weight percentage of which is 11% to 25% of the total weight of the above formula.

2. The formula of a carbon ceramic product according to claim 1, characterized in that: The carbon powder is preferably high-quality carbon powder with high thermal stability and good far-infrared radiation performance, and the carboxyl cellulose is used as a binder to improve the molding strength and structural stability of the carbon ceramic product.

3. The formula of a carbon ceramic product according to claim 1, characterized in that: The lignin, as a natural organic additive, helps to improve the combustion performance and far-infrared radiation efficiency of the carbon-ceramic product, and the kaolin, as an inorganic filler, can enhance the hardness and heat resistance of the carbon-ceramic product.

4. The formula of a carbon ceramic product according to claim 1, characterized in that: The potassium feldspar, as a high-temperature flux, helps to form a glass phase during the firing process, thereby improving the density and crack resistance of the carbon ceramic product. The resin, as a molding aid, can improve the plasticity and molding efficiency of the carbon ceramic product.

5. The formula of a carbon ceramic product according to claim 1, characterized in that: The softened water is used to adjust the humidity and fluidity of the mixture to ensure that the carbon ceramic product has suitable process performance during the molding process.

6. A process for preparing carbon ceramic products, characterized in that :Its characteristics are : The preparation process comprises the following steps: Step 1: weigh each component according to the formula ratio described in claim 1; Step 2: Evenly mix the carbon powder, carboxyl cellulose, lignin, kaolin, potassium feldspar and resin to form a mixed material; Step 3: Add softened water to the evenly mixed dry material and continue stirring until a uniform wet material is formed; Step 4: feeding the wet material into a mold, and forming the desired carbon ceramic product body through pressing, rolling, grouting, injection molding or other molding processes; Step 5: Dry the green body to remove excess water; Step six: sinter the dried green body to obtain a carbon ceramic product that can produce ultra-strong far-infrared lines.

7. The process for preparing a carbon ceramic product according to claim 6, characterized in that: The firing process in step 6 can be roughly divided into a heating stage and a cooling stage: a) Heating stage: The starting temperature is 1100℃, marked as "heating and discharge". This stage involves the preheating of raw materials, the removal of volatiles and the formation of the preliminary structure of carbon-ceramic products. b) Cooling stage: The cooling stage starts from the peak temperature and lasts until it drops to 270°C at nearly 540 minutes. This stage involves further solidification of the carbon-ceramic product structure, transformation of the crystal phase, and optimization of far-infrared radiation performance. The "cooling zone" (as shown in Figure 1) may indicate that the cooling rate needs to be specially controlled at this stage to ensure that the carbon-ceramic product will not crack or its performance will not deteriorate due to rapid temperature changes.

8. The process for preparing a carbon ceramic product according to claim 7, characterized in that: The firing temperature and firing time of step six are adjusted according to the specific formula and the required performance of the carbon ceramic product to ensure that the carbon ceramic product has excellent far-infrared radiation performance and structural stability.

Images