CN110550949A - Formula and production process of wear-resistant high-hardness ceramic - Google Patents
Formula and production process of wear-resistant high-hardness ceramic Download PDFInfo
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Abstract
The invention discloses a formula and a production process of wear-resistant high-hardness ceramic, wherein the formula is prepared from the following raw materials in parts by mass: 12-14 parts of silicon nitride, 20-40 parts of modified pyrophyllite micro powder, 19-21 parts of potassium feldspar, 8-12 parts of kaolin, 40-60 parts of silicon dioxide, 15-21 parts of calcium oxide, 17-21 parts of waste porcelain slag, 15-25 parts of Linggen glaze soil, 5-10 parts of bentonite, 40-50 parts of zirconium oxide, 1-3 parts of barium oxide, 10-16 parts of thickening agent, 0.9-1.3 parts of water reducing agent, 5-9 parts of cross-linking agent, 6-9 parts of surfactant, 12-14 parts of silicon carbide, 5-7 parts of diatomite powder, 3-5 parts of boron powder, 2-4 parts of polyvinyl chloride and 0.1-0.5 part of water. Has the advantages that: the raw materials can be matched and mutually cooperated, so that the ceramic product has high hardness and wear resistance, high compressive strength and strong thermal stability.
Description
Technical Field
The invention relates to the technical field of ceramics, in particular to a formula of wear-resistant high-hardness ceramic and a production process thereof.
background
ceramics is a special product indispensable to human life and production, and has a thousand years history in the history of human production! In the long river of the history of human development, people fully utilize the physical and chemical properties of ceramic materials to develop various ceramic products such as daily ceramics, building ceramics, sanitary ceramics, artistic ceramics, special ceramics and the like. The domestic ceramic is the oldest and commonly used traditional ceramic in a plurality of ceramic products, and the ceramic products have the widest practicability and appreciation. Most of the existing daily-use ceramics have the problem of insufficient wear-resistant compressive strength, the daily-use ceramics are inevitably extruded, collided, scratched or abraded in the normal use process, and the daily-use ceramics are easily damaged or have scratches, cracks or gaps left on the products due to insufficient wear-resistant compressive strength to cause flaws, thus affecting the attractiveness and even use of the ceramics.
an effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
aiming at the problems in the related art, the invention provides a formula of wear-resistant high-hardness ceramic and a production process thereof, so as to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
According to one aspect of the present invention, a wear resistant high hardness ceramic formulation is provided.
the formula of the wear-resistant high-hardness ceramic is prepared from the following raw materials in parts by mass:
12-14 parts of silicon nitride, 20-40 parts of modified pyrophyllite micro powder, 19-21 parts of potassium feldspar, 8-12 parts of kaolin, 40-60 parts of silicon dioxide, 15-21 parts of calcium oxide, 17-21 parts of waste porcelain slag, 15-25 parts of Linggen glaze soil, 5-10 parts of bentonite, 40-50 parts of zirconium oxide, 1-3 parts of barium oxide, 10-16 parts of thickening agent, 0.9-1.3 parts of water reducing agent, 5-9 parts of cross-linking agent, 6-9 parts of surfactant, 12-14 parts of silicon carbide, 5-7 parts of diatomite powder, 3-5 parts of boron powder, 2-4 parts of polyvinyl chloride and 0.1-0.5 part of water.
Further, the water reducing agent comprises the following raw material components: 0.2-0.3 part of sodium trimetaphosphate, 0.6-0.8 part of sodium humate and 0.1-0.2 part of water glass.
Further, the thickening agent comprises the following raw material components: 5-8 parts of diatomite and 5-8 parts of ethylene glycol.
Further, the cross-linking agent comprises the following raw material components: 1-2 parts of N, N' -methylene bisacrylamide, 2-4 parts of diethylenetriamine and 2-3 parts of divinylbenzene.
Further, the surfactant comprises the following raw material components: 2-3 parts of coupling agent, 2-3 parts of polyethylene glycol and 2-3 parts of adipic acid.
According to another aspect of the invention, a production process of the wear-resistant high-hardness ceramic formula is provided.
The preparation method of the wear-resistant high-hardness ceramic formula comprises the following steps:
weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
Weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
Crushing the weighed silicon nitride, modified pyrophyllite micro powder, potassium feldspar, kaolin, silicon dioxide, calcium oxide, waste porcelain slag, Ling root glaze soil, bentonite, zirconia, barium oxide, silicon carbide, diatomite powder, boron powder and polyvinyl chloride, and adding water for mixing to form a mixture I;
putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
Grinding the weighed diatomite and adding the weighed ethylene glycol, N' -methylene bisacrylamide, divinylbenzene, a coupling agent, polyethylene glycol and adipic acid for mixing to obtain a mixture II;
And mixing the first mixture and the second mixture to obtain the product.
Further, the mixture is put into a screening machine prepared in advance, wherein the mesh number of a screen used in the screening machine is 60 meshes
Further, grinding the weighed diatomite and adding the weighed ethylene glycol, N' -methylene bisacrylamide, divinylbenzene, a coupling agent, polyethylene glycol and adipic acid into the ground diatomite to mix, wherein the diatomite is ground and crushed by using ultramicro equipment, and the particle size of the obtained powder is 0.05-0.3 mu m.
The preparation method of the modified pyrophyllite micro powder further comprises the following steps:
crushing natural pyrophyllite, feeding the crushed pyrophyllite into an iron removal device to remove impurities, adding water, ball-milling, drying, and passing through an airflow homogenization device to obtain pyrophyllite micro powder;
feeding the pyrophyllite micro powder into a calcining kiln or a converter, calcining and converting at the temperature of 400-800 ℃, then feeding the pyrophyllite micro powder into an acid washing tank for precipitation for 2-4 hours, and taking the upper slurry;
mixing the obtained slurry with magnesium stearate and nano hydrotalcite, heating to 70-80 ℃, and stirring at constant temperature for 30-50 minutes to obtain a mixed material;
and (3) carrying out reduced pressure distillation, suction filtration and drying on the mixed material, and then sieving with a 200-300-mesh sieve to obtain the modified pyrophyllite micro powder.
further, the first mixture and the second mixture are mixed, and wet mixing is carried out at the rotating speed of 300-400 rpm for 1-2 hours.
the invention adopts the following raw materials in parts:
Silicon nitride: silicon nitride is an important structural ceramic material. It is a superhard matter, has lubricity and abrasion resistance and is an atomic crystal; is resistant to oxidation at high temperature. It can resist cold and hot impact, and can be heated to above 1000 deg.C in air, and can be rapidly cooled and then rapidly heated, and can not be broken.
Modified pyrophyllite micro powder: pyrophyllite (pyrophyllite) is one of clay minerals, and belongs to a layered hydrous aluminosilicate mineral with a 2:1 crystal structure. The chemical structural formula is Al2[ Si4O10] (OH) 2. The pyrophyllite is fine in texture and low in hardness (1-2), the storage capacity of a newly developed pyrophyllite mine reaches 200 ten thousand tons, the aluminum content reaches 30% -39%, and the content of Fe2O3+ TI2O is less than 0.2%, so that the pyrophyllite is suitable for being used as a blank (a die) for artificially synthesizing diamond, ceramics, refractory materials, glass fiber, carved stone and the like. Can be widely applied to industrial departments such as ceramics, metallurgy, building materials, chemical industry, light industry and the like.
potassium feldspar: potash feldspar belongs to monoclinic system and is generally red, yellow and white in color. The density is 2.54-2.57g/cm3, the specific gravity is 2.56-2.59, the hardness is 6, and the theoretical components are SiO264.7% Al2O318.4% and K2O 16.9.9%. It has the features of low melting point (1150 +/-20 deg.c), long melting interval, high melt viscosity, etc. and may be used widely in ceramic blank, ceramic glaze, glass, electric ceramic, grinding material and other industrial departments and in producing potash fertilizer.
kaolin: kaolin is a non-metallic mineral product, and is a clay and claystone mainly composed of kaolinite group clay minerals. It is also called dolomitic soil because it is white and fine. It is named after Kaolin village in Jingdezhen of Jiangxi province. The pure kaolin is in a pure white, fine and soft soil shape and has good physical and chemical properties such as plasticity, fire resistance and the like. The mineral components of the mineral composition mainly comprise kaolinite, halloysite, hydromica, illite, montmorillonite, quartz, feldspar and other minerals. Kaolin has wide application, is mainly used for paper making, ceramics and refractory materials, is used for coating, rubber filler, enamel glaze and white cement raw materials, and is used for industrial departments such as plastics, paint, pigment, grinding wheels, pencils, daily cosmetics, soap, pesticide, medicine, textile, petroleum, chemical industry, building materials, national defense and the like in a small amount.
Silicon dioxide: silica (chemical formula: SiO2) is an acidic oxide and the corresponding hydrate is silicic acid (H2SiO 3). Silicon dioxide is one of the most important compounds of silicon. The natural silica present on earth accounts for about 12% of the earth's crust mass, and exists in crystalline and amorphous forms, collectively referred to as silica.
calcium oxide: calcium oxide (calcium oxide), an inorganic compound, has the chemical formula CaO, commonly known as quicklime. The physical properties are white powder on the surface, off-white when the powder is not pure, light yellow or gray when the powder contains impurities, and hygroscopicity.
waste ceramic slag: waste ceramic slag produced after primary and secondary calcination.
Ridge root glaze soil: the glaze is a colorless or colored vitreous thin layer covering the surface of the ceramic product, and is prepared by grinding mineral raw materials (feldspar, quartz, talc, kaolin, etc.) and raw materials in a certain proportion (part of the raw materials can be made into frits first) to prepare glaze slurry, applying the glaze slurry on the surface of a blank body, and calcining at a certain temperature. Can increase the mechanical strength, thermal stability and dielectric strength of the product, and has the characteristics of beautifying the ware, being convenient for wiping and washing, being not eroded by the fishy smell of dust, and the like.
bentonite: the bentonite is a non-metal mineral product with montmorillonite as a main mineral component, the montmorillonite structure is a 2:1 type crystal structure consisting of two silicon-oxygen tetrahedrons and a layer of aluminum-oxygen octahedron, and because certain cations such as Cu, Mg, Na, K and the like exist in a layered structure formed by montmorillonite crystal cells, and the cations have unstable effects with montmorillonite unit cells and are easy to exchange with other cations, the bentonite has better ion exchange property. Foreign countries have been applied to more than 100 departments in 24 fields of industrial and agricultural production, and more than 300 products exist, so that the soil is called as 'universal soil'.
Zirconium oxide: zirconia (ZrO2 natural zirconia mineral raw material mainly comprises baddeleyite and zirconite, the deep level zircon igneous rock mineral has light yellow, brown yellow, yellow green, etc., specific gravity of 4.6-4.7, hardness of 7.5, strong metallic luster, and can be used as ceramic glaze raw material.
Barium oxide: barium oxide (BaO), colorless cubic crystals. Soluble in acid and insoluble in acetone and ammonia. Reacts with water to form barium hydroxide. It is very easy to absorb moisture and carbon dioxide in the air to produce barium carbonate.
Ethylene glycol: due to low molecular weight and active property, the catalyst can perform esterification, etherification, alcoholization, oxidation, acetal, dehydration and other reactions.
Sodium trimetaphosphate: is easily dissolved in water. Sodium trimetaphosphate can generate a compound Na3P3O9.H2O2 with hydrogen peroxide, and the peroxide is easy to decompose, and if a very small amount of heavy metal exists, the decomposition can be promoted. The pH of the 1% aqueous solution was 6.0. Crystals of the hexahydrate salt are formed by the addition of sodium chloride to the aqueous solution. Weathering at room temperature and fast dewatering at 50 deg.c.
sodium humate: (HA-Na) is black, brilliant and sparkling amorphous granules with beautiful luster. It is non-toxic, odorless and non-corrosive, and is very easy to use in water. The humic acid-containing weathered coal is prepared by chemically extracting natural humic acid-containing high-quality low-calcium low-magnesium weathered coal, is a multifunctional high-molecular compound, contains more active groups such as hydroxyl, quinonyl and carboxyl, has a large internal surface area, and has strong adsorption, exchange, complexation and chelation capabilities. Sodium humate has been applied and accepted in many fields of national economy by the conquering of Chinese academy of medicine, department of chemical industry, coal department, department of petroleum, department of railway and relevant scientific research and production departments of provinces and cities. Particularly, the composite material can be used as a ceramic additive, a debonding agent, a drilling mud regulator, an industrial water stabilizer, a cement water reducing agent, a boiler scale remover, an ore flotation agent, a waste gas and wastewater treatment agent, a water coal slurry additive, a briquette coal adhesive, a storage battery cathode plate expanding agent and the like, shows strong vitality, obtains remarkable economic effect and has very wide prospect.
Water glass: the sodium silicate is a water-soluble silicate, and the water solution is water glass, which is an ore binder. The chemical formula is R2O. nSiO2, wherein R2O is alkali metal oxide, and n is the ratio of the mole number of silicon dioxide and the mole number of the alkali metal oxide, and is called the mole number of the water glass. The water glass commonly used in construction is an aqueous solution of sodium silicate.
N, N' -methylenebisacrylamide: the cross-linking agent used as the waterborne epoxy resin adhesive is used as the cross-linking agent of an acrylamide system in gel injection molding.
Diethylenetriamine: diethylenetriamine is yellow transparent viscous liquid with hygroscopicity, has irritant ammonia odor, is flammable and is strong in alkalinity. Is soluble in water, acetone, benzene, ethanol, methanol, etc., is insoluble in n-heptane, and is corrosive to copper and its alloy. Melting point-35 deg.C, boiling point 207 deg.C, relative density 0.9586(20, 20 deg.C), and refractive index 1.4810. Flash point 94 ℃. The product has reactivity of secondary amine, is easy to react with various compounds, and the derivatives thereof have wide application. It is easy to absorb moisture and carbon dioxide in the air.
divinylbenzene: divinylbenzene is a very useful crosslinking agent and is widely used for ion exchange resins, ion exchange membranes, ABS resins, polystyrene resins, unsaturated polyester resins, synthetic rubbers, wood processing, carbon processing, and the like.
Coupling agent: a plastic additive for improving the interfacial properties of synthetic resins with inorganic fillers or reinforcing materials in plastic compounding. Also known as surface modifiers. It can reduce the viscosity of the synthetic resin melt in the plastic processing process, improve the dispersion degree of the filler to improve the processing performance, and further ensure that the product obtains good surface quality and mechanical, thermal and electrical properties. The amount of the filler is generally 0.5 to 2% of the amount of the filler. The coupling agent generally consists of two parts, wherein one part is an inorganic group which can act with an inorganic filler or a reinforcing material; the other part is an organophilic group which can interact with the synthetic resin.
Polyethylene glycol: the series products are non-toxic, non-irritant, slightly bitter in taste, good in water solubility and good in compatibility with a plurality of organic matter components. They have excellent lubricity, moisture retention, dispersibility, adhesives, antistatic agents, softeners and the like, and are widely applied in the industries of cosmetics, pharmacy, chemical fibers, rubber, plastics, papermaking, paint, electroplating, pesticides, metal processing, food processing and the like.
adipic acid: adipic acid (Adipic acid), also known as Adipic acid, is an important organic dibasic acid, can undergo salt formation reaction, esterification reaction, amidation reaction and the like, and can be polycondensed with diamine or dihydric alcohol to form a high molecular polymer and the like. Adipic acid is a dicarboxylic acid with important industrial significance, plays an important role in chemical production, organic synthesis industry, medicine, lubricant manufacturing and other aspects, and the yield is the second place in all dicarboxylic acids.
silicon carbide: silicon carbide has four major application fields, namely functional ceramics, high-grade refractory materials, grinding materials and metallurgical raw materials. The silicon carbide coarse material can be supplied in large quantity, the high-tech product cannot be calculated, and the application of the nano-scale silicon carbide powder with extremely high technical content cannot form the large-scale economy in a short time.
boron powder: boron has the largest volumetric heat, second to beryllium by weight. Slightly soluble in nitric acid and insoluble in water. Amorphous boron is chemically active. The powder and air may form an explosive mixture. Magnesium is used to reduce boron anhydride to prepare amorphous boron. For solid ramjet engines and smokeless clean propellants. The simple substance boron is black or dark brown powder, and when the simple substance boron is oxidized in the air, the internal boron is prevented from being continuously oxidized due to the formation of a diboron trioxide film. Can react with fluorine at normal temperature and is not corroded by hydrochloric acid and hydrofluoric acid aqueous solution. Boron is insoluble in water, powdered boron is soluble in boiling nitric and sulfuric acids, and most molten metals such as copper, iron, manganese, aluminum and calcium.
Polyvinyl chloride: polyvinyl chloride (pvc), abbreviated as pvc in english, is an initiator of Vinyl Chloride Monomer (VCM) in peroxide, azo compound, etc.; or a polymer polymerized by a free radical polymerization mechanism under the action of light and heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.
The invention has the beneficial effects that: the raw materials can be matched and mutually cooperated, so that the ceramic product has high hardness and wear resistance, high compressive strength and strong thermal stability, the fracture toughness of the material is improved, the strength of the biscuit is improved, the generation of various defects in the biscuit preparation is inhibited, and the machining requirement is met.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a process for producing a wear-resistant high-hardness ceramic formulation according to an embodiment of the present invention;
Fig. 2 is a flow chart of a production process of modified pyrophyllite micropowder in a wear-resistant high-hardness ceramic formula according to an embodiment of the invention.
Detailed Description
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
According to an embodiment of the present invention, a wear resistant high hardness ceramic formulation is provided.
The formula of the wear-resistant high-hardness ceramic is prepared from the following raw materials in parts by mass:
12-14 parts of silicon nitride, 20-40 parts of modified pyrophyllite micro powder, 19-21 parts of potassium feldspar, 8-12 parts of kaolin, 40-60 parts of silicon dioxide, 15-21 parts of calcium oxide, 17-21 parts of waste porcelain slag, 15-25 parts of Linggen glaze soil, 5-10 parts of bentonite, 40-50 parts of zirconium oxide, 1-3 parts of barium oxide, 10-16 parts of thickening agent, 0.9-1.3 parts of water reducing agent, 5-9 parts of cross-linking agent, 6-9 parts of surfactant, 12-14 parts of silicon carbide, 5-7 parts of diatomite powder, 3-5 parts of boron powder, 2-4 parts of polyvinyl chloride and 0.1-0.5 part of water.
Wherein the water reducing agent comprises the following raw material components: 0.2-0.3 part of sodium trimetaphosphate, 0.6-0.8 part of sodium humate and 0.1-0.2 part of water glass.
The thickening agent comprises the following raw material components: 5-8 parts of diatomite and 5-8 parts of ethylene glycol.
The cross-linking agent comprises the following raw material components: 1-2 parts of N, N' -methylene bisacrylamide, 2-4 parts of diethylenetriamine and 2-3 parts of divinylbenzene.
In order to clearly understand the technical scheme of the invention, the technical scheme of the invention is described in detail through specific examples.
example one
the formula of the wear-resistant high-hardness ceramic is prepared from the following raw materials in parts by mass:
12g of silicon nitride, 20g of modified pyrophyllite micro powder, 19g of potassium feldspar, 8g of kaolin, 40g of silicon dioxide, 15g of calcium oxide, 17g of waste porcelain slag, 15g of Linggan glaze soil, 5g of bentonite, 40g of zirconia, 1g of barium oxide, 10g of thickening agent, 0.9g of water reducing agent, 5g of crosslinking agent, 6g of surfactant, 12g of silicon carbide, 5g of diatomite powder, 3g of boron powder, 2g of polyvinyl chloride and 0.1g of water.
wherein the water reducing agent comprises the following raw material components: 0.2g of sodium trimetaphosphate, 0.6g of sodium humate and 0.1g of water glass.
the thickening agent comprises the following raw material components: 5g of diatomite and 5g of ethylene glycol.
The cross-linking agent comprises the following raw material components: 1g of N, N' -methylenebisacrylamide, 2g of diethylenetriamine and 2g of divinylbenzene.
The surfactant comprises the following raw material components: 2g of coupling agent, 2g of polyethylene glycol and 2g of adipic acid.
The preparation method of the wear-resistant high-hardness ceramic formula comprises the following steps:
Weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
crushing 12g of weighed silicon nitride, 20g of modified pyrophyllite micro powder, 19g of potassium feldspar, 8g of kaolin, 40g of silicon dioxide, 15g of calcium oxide, 17g of waste porcelain slag, 15g of Linggen glaze soil, 5g of bentonite, 40g of zirconium oxide, 1g of barium oxide, 12g of silicon carbide, 5g of diatomite powder, 3g of boron powder and 2g of polyvinyl chloride, and adding 0.1g of water for mixing to form a first mixture;
putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
Grinding 5g of weighed diatomite, adding 5g of weighed ethylene glycol, 1g of N, N' -methylenebisacrylamide, 2g of divinylbenzene, 2g of a coupling agent, 2g of polyethylene glycol and 2g of adipic acid, and mixing to obtain a mixture II;
And mixing the first mixture and the second mixture to obtain the product.
Example two
The formula of the wear-resistant high-hardness ceramic is prepared from the following raw materials in parts by mass:
13g of silicon nitride, 30g of modified pyrophyllite micro powder, 20g of potassium feldspar, 10g of kaolin, 50g of silicon dioxide, 18g of calcium oxide, 19g of waste porcelain residues, 20g of Linggan glaze soil, 7.5g of bentonite, 45g of zirconium oxide, 2g of barium oxide, 13g of thickening agent, 1.1g of water reducing agent, 7g of cross-linking agent, 7.5g of surfactant, 13g of silicon carbide, 6g of diatomite powder, 4g of boron powder, 3g of polyvinyl chloride and 0.3g of water.
Wherein the water reducing agent comprises the following raw material components: 0.25g of sodium trimetaphosphate, 0.7g of sodium humate and 0.15g of water glass.
The thickening agent comprises the following raw material components: 6.5g of diatomite and 6.5g of ethylene glycol.
the cross-linking agent comprises the following raw material components: 1.5g of N, N' -methylenebisacrylamide, 3g of diethylenetriamine and 2.5g of divinylbenzene.
The surfactant comprises the following raw material components: 2.5g of coupling agent, 2.5g of polyethylene glycol and 2.5g of adipic acid.
The preparation method of the wear-resistant high-hardness ceramic formula comprises the following steps:
Weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
crushing 13g of weighed silicon nitride, 30g of modified pyrophyllite micro powder, 20g of potassium feldspar, 10g of kaolin, 50g of silicon dioxide, 18g of calcium oxide, 19g of waste porcelain slag, 20g of Linggen glaze soil, 7.5g of bentonite, 45g of zirconium oxide, 2g of barium oxide, 13g of silicon carbide, 6g of diatomite powder, 4g of boron powder and 3g of polyvinyl chloride, and adding 0.3g of water for mixing to form a first mixture;
Putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
Grinding 6.5g of weighed diatomite, adding 6.5g of weighed ethylene glycol, 1g of N, N' -methylene bisacrylamide, 2g of divinylbenzene, 2g of coupling agent, 2g of polyethylene glycol and 2g of adipic acid, and mixing to obtain a mixture II;
And mixing the first mixture and the second mixture to obtain the product.
EXAMPLE III
The formula of the wear-resistant high-hardness ceramic is prepared from the following raw materials in parts by mass:
14g of silicon nitride, 40g of modified pyrophyllite micro powder, 21g of potassium feldspar, 12g of kaolin, 60g of silicon dioxide, 21g of calcium oxide, 21g of waste porcelain residues, 25g of Linggan glaze soil, 10g of bentonite, 50g of zirconium oxide, 3g of barium oxide, 16g of thickening agent, 1.3g of water reducing agent, 9g of cross-linking agent, 9g of surfactant, 14g of silicon carbide, 7g of diatomite powder, 5g of boron powder, 4g of polyvinyl chloride and 0.5g of water.
Wherein the water reducing agent comprises the following raw material components: 0.3g of sodium trimetaphosphate, 0.8g of sodium humate and 0.2g of water glass.
The thickening agent comprises the following raw material components: 8g of diatomite and 8g of ethylene glycol.
The cross-linking agent comprises the following raw material components: 2g of N, N' -methylene bisacrylamide, 4g of diethylenetriamine and 3g of divinylbenzene.
The surfactant comprises the following raw material components: 3g of coupling agent, 3g of polyethylene glycol and 3g of adipic acid.
the preparation method of the wear-resistant high-hardness ceramic formula comprises the following steps:
Weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
Crushing 14g of weighed silicon nitride, 40g of modified pyrophyllite micro powder, 21g of potassium feldspar, 12g of kaolin, 60g of silicon dioxide, 21g of calcium oxide, 21g of waste porcelain slag, 25g of Linggen glaze soil, 10g of bentonite, 50g of zirconium oxide, 3g of barium oxide, 14g of silicon carbide, 7g of diatomite powder, 5g of boron powder and 4g of polyvinyl chloride, and adding 0.5g of water for mixing to form a first mixture;
Putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
grinding 8g of weighed diatomite, adding 8g of weighed ethylene glycol, 2g of N, N' -methylene bisacrylamide, 4g of divinylbenzene, 3g of coupling agent, 3g of polyethylene glycol and 3g of adipic acid, and mixing to obtain a mixture II;
and mixing the first mixture and the second mixture to obtain the product.
For the convenience of understanding the above technical solution of the present invention, the following detailed description is made on the flow of the above solution of the present invention with reference to the accompanying drawings, and specifically is as follows:
According to the embodiment of the invention, the invention also provides a production process of the wear-resistant high-hardness ceramic formula.
As shown in FIG. 1, in the actual production process, the preparation of the wear-resistant high-hardness ceramic formula comprises the following steps:
s101, weighing all raw materials required by the wear-resistant high-hardness ceramic formula according to the parts by mass;
step S103, crushing the weighed silicon nitride, modified pyrophyllite micro powder, potassium feldspar, kaolin, silicon dioxide, calcium oxide, waste porcelain slag, Lingguan glaze soil, bentonite, zirconium oxide, barium oxide, silicon carbide, diatomite powder, boron powder and polyvinyl chloride, and adding water for mixing to form a mixture I;
Step S105, putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
step S107, grinding the weighed diatomite and adding the weighed ethylene glycol, N' -methylene bisacrylamide, divinylbenzene, a coupling agent, polyethylene glycol and adipic acid for mixing to obtain a mixture II;
And step S109, mixing the first mixture and the second mixture to obtain a product.
In one embodiment, the first mixture is fed into a pre-prepared screening machine, wherein the screen mesh used in the screening machine is 60 mesh.
In one embodiment, the weighed diatomite is ground and added into the weighed ethylene glycol, N' -methylene bisacrylamide, divinylbenzene, a coupling agent, polyethylene glycol and adipic acid to be mixed, wherein the diatomite is ground and crushed by using an ultramicro device, and the particle size of the obtained powder is 0.05-0.3 mu m.
in one embodiment, referring to fig. 2, the above-mentioned modified pyrophyllite micropowder is produced by the following steps:
s201, crushing natural pyrophyllite, feeding the crushed pyrophyllite into an iron removal device to remove impurities, adding water into the crushed pyrophyllite, ball-milling the crushed pyrophyllite, drying the crushed pyrophyllite, and obtaining pyrophyllite micro powder through an airflow homogenizing device;
S203, delivering the pyrophyllite micro powder into a calcining kiln or a converter, calcining and converting at the temperature of 400-800 ℃, delivering the pyrophyllite micro powder into an acid washing tank, precipitating for 2-4 hours, and taking the upper slurry;
S205, mixing the obtained slurry with magnesium stearate and nano hydrotalcite, heating to 70-80 ℃, and stirring for 30-50 minutes at constant temperature to obtain a mixed material;
s207, carrying out reduced pressure distillation, suction filtration and drying on the mixed material, and then sieving with a 200-300-mesh sieve to obtain the modified pyrophyllite micro powder.
In one embodiment, the first mixture and the second mixture are mixed and wet-mixed at a rotation speed of 300-400 rpm for 1-2 hours
In conclusion, by means of the technical scheme, the raw materials can be matched and mutually cooperated, so that the ceramic product has high hardness and wear resistance, high compressive strength and strong thermal stability, the fracture toughness of the material is improved, the strength of the biscuit is improved, various defects in biscuit preparation are inhibited, and the machining requirement is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The formula of the wear-resistant high-hardness ceramic is characterized by being prepared from the following raw materials in parts by mass:
12-14 parts of silicon nitride, 20-40 parts of modified pyrophyllite micro powder, 19-21 parts of potassium feldspar, 8-12 parts of kaolin, 40-60 parts of silicon dioxide, 15-21 parts of calcium oxide, 17-21 parts of waste porcelain slag, 15-25 parts of Linggen glaze soil, 5-10 parts of bentonite, 40-50 parts of zirconium oxide, 1-3 parts of barium oxide, 10-16 parts of thickening agent, 0.9-1.3 parts of water reducing agent, 5-9 parts of cross-linking agent, 6-9 parts of surfactant, 12-14 parts of silicon carbide, 5-7 parts of diatomite powder, 3-5 parts of boron powder, 2-4 parts of polyvinyl chloride and 0.1-0.5 part of water.
2. the wear-resistant high-hardness ceramic formula according to claim 1, wherein the water reducing agent comprises the following raw material components: 0.2-0.3 part of sodium trimetaphosphate, 0.6-0.8 part of sodium humate and 0.1-0.2 part of water glass.
3. the wear-resistant high-hardness ceramic formulation according to claim 2, wherein the thickener comprises the following raw material components: 5-8 parts of diatomite and 5-8 parts of ethylene glycol.
4. The wear-resistant high-hardness ceramic formula according to claim 3, wherein the cross-linking agent comprises the following raw material components: 1-2 parts of N, N' -methylene bisacrylamide, 2-4 parts of diethylenetriamine and 2-3 parts of divinylbenzene.
5. The wear-resistant high-hardness ceramic formula according to claim 4, wherein the surfactant comprises the following raw material components: 2-3 parts of coupling agent, 2-3 parts of polyethylene glycol and 2-3 parts of adipic acid.
6. A process for producing a wear-resistant high-hardness ceramic formulation according to claim 5, comprising the steps of:
Weighing the raw materials required by the formula of the wear-resistant high-hardness ceramic according to the parts by mass;
crushing the weighed silicon nitride, modified pyrophyllite micro powder, potassium feldspar, kaolin, silicon dioxide, calcium oxide, waste porcelain slag, Ling root glaze soil, bentonite, zirconia, barium oxide, silicon carbide, diatomite powder, boron powder and polyvinyl chloride, and adding water for mixing to form a mixture I;
Putting the mixture I into a pre-prepared screening machine, and screening by using a mesh screen to obtain ceramic particles meeting the requirements;
Grinding the weighed diatomite and adding the weighed ethylene glycol, N' -methylene bisacrylamide, divinylbenzene, a coupling agent, polyethylene glycol and adipic acid for mixing to obtain a mixture II;
And mixing the first mixture and the second mixture to obtain the product.
7. The process of claim 6, wherein the mixture is fed into a pre-prepared screening machine, wherein the screen mesh used in the screening machine is 60 mesh.
8. The production process of the wear-resistant high-hardness ceramic formula according to claim 6, wherein the weighed diatomite is ground and added into the weighed ethylene glycol, N' -methylenebisacrylamide, divinylbenzene, coupling agent, polyethylene glycol and adipic acid for mixing, wherein the diatomite is ground and pulverized by using an ultramicro device, and the particle size of the obtained powder is 0.05-0.3 μm.
9. The production process of the wear-resistant high-hardness ceramic formula according to claim 6, wherein the production of the modified pyrophyllite micropowder comprises the following steps:
crushing natural pyrophyllite, feeding the crushed pyrophyllite into an iron removal device to remove impurities, adding water into the crushed pyrophyllite, ball-milling the crushed pyrophyllite, drying the crushed pyrophyllite, and obtaining pyrophyllite micro powder through an airflow homogenizing device;
Feeding the pyrophyllite micro powder into a calcining cellar or a converter, calcining and converting at the temperature of 400-800 ℃, then feeding the pyrophyllite micro powder into an acid washing tank for precipitating for 2-4 hours, and taking the upper slurry;
Mixing the obtained slurry with magnesium stearate and nano hydrotalcite, heating to 70-80 ℃, and stirring at constant temperature for 30-50 minutes to obtain a mixed material;
And (3) carrying out reduced pressure distillation, suction filtration and drying on the mixed material, and then sieving with a 200-300-mesh sieve to obtain the modified pyrophyllite micro powder.
10. The process for producing the wear-resistant high-hardness ceramic formulation according to claim 6, wherein the first mixture and the second mixture are mixed and wet mixed at a rotation speed of 300-400 rpm for 1-2 hours.
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| CN109608168A (en) * | 2018-12-25 | 2019-04-12 | 佛山科学技术学院 | A kind of wear-resisting high-hardness ceramic product and preparation method thereof |
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| CN104803604A (en) * | 2015-03-20 | 2015-07-29 | 天津市中一高科技有限公司 | Wear-resistant and high-hardness ceramic formula and production technology of ceramic |
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