阅读说明：本技术 一种内墙砖烧制用低温低膨钛熔块的配方及制备方法 (Formula and preparation method of low-temperature low-expansion titanium frit for firing interior wall bricks ) 是由 姬存永 于 2020-04-26 设计创作，主要内容包括：本发明公开了一种内墙砖烧制用低温低膨钛熔块的配方及制备方法,属于瓷砖生产用料技术领域,其配方是：钛白粉：6.0%+萤石：2.5%+方解石：20.0%+白云石：10.0%+锂瓷石：20.0%+钾长石：5.0%+石英：37.0%。制作方法是：将上述对应陶瓷釉用原料(都是粉体状原料)按特定比例称重配料后,放入搅拌机内混合搅拌均匀,然后放入熔块炉(专业高温高架炉,连续生产)内熔化,其熔制温度为：1540℃-1570℃,熔制时间大约为24小时左右,待其熔成高温熔液后,水淬成熔块(碎玻璃状),经编织袋包装后为成品,供陶瓷厂使用。该钛熔块制作工艺简便,市面原料丰富,显著降低生产厂家成本,并且实现快速烧成,产品性能稳定,持久耐用,不易出现质量问题。(The invention discloses a formula and a preparation method of a low-temperature low-expansion titanium frit for firing interior wall tiles, belonging to the technical field of tile production materials, wherein the formula comprises the following components in parts by weight: titanium dioxide: 6.0% + Fluorite: 2.5% + calcite: 20.0% + dolomite: 10.0% + laponite: 20.0% + potassium feldspar: 5.0% + Quartz: 37.0 percent. The preparation method comprises the following steps: weighing and mixing the corresponding raw materials (all powdery raw materials) for the ceramic glaze according to a specific proportion, putting the raw materials into a stirrer to be uniformly mixed and stirred, and then putting the mixture into a frit furnace (a professional high-temperature overhead furnace for continuous production) to be melted, wherein the melting temperature is as follows: 1540-1570 ℃, the melting time is about 24 hours, after the materials are melted into high-temperature melt, the melt is water-quenched into fusion cakes (broken glass shape), and the fusion cakes are packaged into finished products for ceramic factories after being woven bags. The titanium frit has the advantages of simple and convenient manufacturing process, abundant raw materials in the market, obvious reduction of the cost of manufacturers, realization of quick firing, stable product performance, durability and difficulty in causing quality problems.)

1. A formula of low-temperature low-expansion titanium frit for firing interior wall bricks and a preparation method thereof are disclosed, wherein the formula comprises the following components: titanium dioxide: 6.0% + Fluorite: 2.5% + calcite: 20.0% + dolomite: 10.0% + laponite: 20.0% + potassium feldspar: 5.0% + Quartz: 37.0 percent.

2. The formula and preparation method of low-temperature low-expansion titanium frit for firing interior wall tiles according to claim 1, wherein the processing method comprises the following steps: weighing and mixing the corresponding raw materials (all powdery raw materials) for the ceramic glaze according to a specific proportion, putting the raw materials into a stirrer to be uniformly mixed and stirred, and then putting the mixture into a fritting furnace to be melted at the melting temperature: 1540-1570 ℃, the melting time is about 24 hours, after the materials are melted into high-temperature melt, the melt is water-quenched into fusion cakes (broken glass shape), and the fusion cakes are packaged into finished products for ceramic factories after being woven bags.

Technical Field

The invention belongs to the technical field of materials for porcelain production, and particularly relates to a frit for firing an inner wall brick.

Background

At present, most of ceramic manufacturers mostly use wide-body kilns, the firing speed is high, the single-line production capacity is high, and the kiln temperature is easy to be uneven to cause chromatic aberration. The color difference is generally caused by three factors: 1. firing (i.e., not fully sintering) the impervious ground coat; 2. the transverse temperature of the high-temperature zone of the kiln is not uniform; 3. the titanium frit has too low a titanium content. The first condition is easy to solve, namely the high-temperature area of the kiln can be adjusted at any time according to the firing condition of the ground glaze; under the condition of eliminating the aging of a nozzle of a fire gun in a high-temperature area of the kiln, the second condition can be solved by finely adjusting the size of left and right combustion-supporting air in the high-temperature area of the kiln; the third case is only solved by adjusting the titanium content of the titanium frit. The titanium frit with high titanium content can avoid color difference to the maximum extent, but the titanium content is high in cost, and the unit price of the titanium pigment in the raw materials of the titanium frit is highest, so that a glaze manufacturer reduces the using amount of the titanium pigment to the greatest extent in order to reduce the cost; however, a frit having a low titanium content is prone to cause color difference and is not satisfactory in whiteness. How to achieve high quality and low price (namely, the titanium content is just right) is the subject to be solved by the invention.

Disclosure of Invention

The technical task of the invention is to provide a formula and a preparation method of low-temperature low-expansion titanium frit for firing interior wall bricks aiming at the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a formula of low-temperature low-expansion titanium frit for firing interior wall bricks and a preparation method thereof are disclosed, wherein the formula comprises the following components: titanium dioxide: 6.0% + Fluorite: 2.5% + calcite: 20.0% + dolomite: 10.0% + laponite: 20.0% + potassium feldspar: 5.0% + Quartz: 37.0 percent. The preparation method comprises the following steps: weighing and mixing the corresponding raw materials (all powdery raw materials) for the ceramic glaze according to a specific proportion, putting the raw materials into a stirrer to be uniformly mixed and stirred, and then putting the mixture into a frit furnace (a professional high-temperature overhead furnace for continuous production) to be melted, wherein the melting temperature is as follows: 1540-1570 ℃, the melting time is about 24 hours, after the materials are melted into high-temperature melt, the melt is water-quenched into fusion cakes (broken glass shape), and the fusion cakes are packaged into finished products for ceramic factories after being woven bags.

In the proportion, the titanium dioxide is selected as national standard as possible (namely, the content of titanium oxide is more than 98.3%), and low-grade titanium dioxide can also be selected, but the low-grade titanium dioxide often has higher iron content and influences the whiteness and stability of a finished product.

The proportion of the lithium porcelain stone is generally Jiangxi Dafeng.

The quartz is a mineral composed of silicon dioxide in the formula of SiO 2. The pure quartz is colorless and transparent, has glass luster, and the fracture is grease luster. The hardness is 7, no cleavage exists, the shell-shaped fracture is a silicate mineral which is hard, wear-resistant and stable in chemical property, and the crystal brightness and whiteness of the proportioning material are improved. The expansion coefficient of the glaze is reduced, and the wear resistance and hardness of the glaze are improved.

The chemical component of dolomite in the mixture ratio is CaMg (CO)₃₎₂The crystal belongs to trigonal carbonate mineral. The crystal structure of dolomite is similar to that of calcite, the crystal form is rhombohedral, the crystal face is often bent into saddle shape, and the poly-lamellar twins are common and mostly present in block and granular aggregates. The pure dolomite is white, and sometimes has grayish green, grayish yellow, pink and other colors and glass luster due to the contained other elements and impurities. Three groups of rhombohedrons are completely cleaved and are brittle. Mohs hardness is 3.5-4, and specific gravity is 2.8-2.9.

The formula of the Chinese medicinal material 'Fangjie' powder is ground from natural carbonate minerals such as calcite, marble and limestone. Is a common powdery inorganic filler, has the advantages of high chemical purity, large inertia, difficult chemical reaction, good thermal stability, no decomposition below 400 ℃, high whiteness, low oil absorption rate, low refractive index, soft quality, dryness, no crystal water, low hardness, small abrasion value, no toxicity, no odor, good dispersibility and the like

Further, the preparation method of the titanium frit formula comprises the following steps: weighing and mixing the corresponding raw materials (all powdery raw materials) for the ceramic glaze according to a specific proportion, putting the raw materials into a stirrer to be uniformly mixed and stirred, and then putting the mixture into a frit furnace (a professional high-temperature overhead furnace for continuous production) to be melted, wherein the melting temperature is as follows: 1540-1570 ℃, the melting time is about 24 hours, after the materials are melted into high-temperature melt, the melt is water-quenched into fusion cakes (broken glass shape), and the fusion cakes are packaged into finished products for ceramic factories after being woven bags.

The using method comprises the following steps: taking kaolin: 5.0% -10.0% + calcined talc: 3.0% -5.0% + (low iron content) potassium feldspar: 10.0% -20.0% + calcined soil: 1% -5.0% + titanium frit: 65.0% -75.0% (wherein the addition ratio of the low-expansion titanium frit, the medium-expansion titanium frit and the high-expansion titanium frit is adjusted according to the practical conditions of manufacturers), wherein the calcined soil can be replaced by the lower-price glaze pyrophyllite, the raw materials are weighed and proportioned, put into a stirrer to be stirred for 10-15 minutes, and packaged for use by manufacturers. The corresponding chemical composition range is; k₂O:1.0%--2.0%Na₂O:0.3%--1.0% CaO:17.50%--18.5% MgO:1%--3% Al₂O₃:5%--6.5% SiO₂:60%--65%Fe₂O₃:0.2%--0.4% TiO₂:6.5—8.0%。

The titanium frit for the inner wall brick has the advantages of simple and convenient manufacturing process, abundant raw materials in the market, obvious reduction of the cost of manufacturers, realization of quick firing, stable product performance, durability and difficulty in quality problem.

Detailed Description