阅读说明：本技术 一种裂纹釉陶瓷制品用坯料 (Blank for crack glaze ceramic product ) 是由 杨庆华 于 2020-06-15 设计创作，主要内容包括：本发明涉及一种裂纹釉陶瓷制品用坯料,按照重量份数计,它包括(1)长石粉12-20份,(2)水洗土50-80份,(3)滑石粉1-5份,(4)叶蜡石8-18份,(5)粘土2-6份,(6)熔块5-10份；其制备方法,它包括将料：球：水按照质量比1：1.5：1.1-1.2配比,球磨24小时,当泥浆细度达到120目筛筛余为0.4-0.6%即可,加水稀释至50-60波美度制得泥浆。本发明节能,成品裂纹效果好。(The invention relates to a blank for a crack glaze ceramic product, which comprises, by weight, (1) 12-20 parts of feldspar powder, (2) 50-80 parts of washing soil, (3) 1-5 parts of talcum powder, (4) 8-18 parts of pyrophyllite, (5) 2-6 parts of clay, and (6) 5-10 parts of clinker; the preparation method comprises the following steps: ball: water is mixed according to the mass ratio of 1: 1.5: 1.1-1.2, ball milling for 24 hours, and adding water to dilute to 50-60 baume to obtain the slurry when the fineness of the slurry reaches 120 meshes and the screen residue is 0.4-0.6%. The invention saves energy and has good crack effect of finished products.)

1. A blank for a crack glaze ceramic product, characterized in that: the adhesive comprises the following components in parts by weight,

(1) 12-20 parts of feldspar powder,

(2) 50-80 parts of water-washed soil,

(3) 1-5 parts of talcum powder,

(4) 8-18 parts of pyrophyllite, wherein,

(5) 2-6 parts of clay, namely,

(6) 5-10 parts of a frit,

the frit comprises, by weight, 20-30 parts of quartz, 55-65 parts of feldspar and 12-20 parts of borax;

the preparation method comprises the following steps: ball: water is mixed according to the mass ratio of 1: 1.5: 1.1-1.2, ball milling for 24 hours, and adding water to dilute to 50-60 baume to obtain the slurry when the fineness of the slurry reaches 120 meshes and the screen residue is 0.4-0.6%.

2. The blank for a cracked-glaze ceramic article according to claim 1, wherein: the adhesive comprises the following components in parts by weight,

(1) 15 parts of feldspar powder, wherein the feldspar powder comprises the following components,

(2) 60 parts of water-washed soil, namely,

(3) 2 parts of talcum powder,

(4) 10 parts of pyrophyllite, namely 10 parts of pyrophyllite,

(5) 5 parts of clay, namely 5 parts of clay,

(6) 8 parts of a fusion cake, namely 8 parts of fusion cake,

the frit comprises, by weight, 25 parts of quartz, 60 parts of feldspar and 15 parts of borax.

3. The blank for a cracked-glaze ceramic article according to claim 1, wherein: when the fineness of the slurry reaches 120 meshes, the screen residue is 0.5 percent.

4. the blank for a cracked-glaze ceramic article according to claim 1, wherein the expansion coefficient of the green body made of the blank is 5.2X 10^-7-6.5×10^-7。

Technical Field

The invention belongs to the technical field of ceramics, and particularly relates to a blank for a crack glaze product.

Background

The crack glaze is fine cracks on the glaze layer of the ceramic product, and the crack glaze has special artistic effect and is favored by people. Generally, the glaze firing is carried out at low temperature of about 1100 ℃, at medium temperature of about 1200 ℃ and at high temperature of about 1300 ℃, and most crack glazes are fired at medium and high temperature at present. The high-temperature sintering can ensure good crack effect, and the high-temperature sintering mainly depends on the combined use of the blank and the glaze, and the expansion coefficient of the blank plays a role in determination.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide the blank for the crack glaze ceramic product, which is energy-saving and has good crack effect of the finished product.

The technical scheme is as follows: in order to solve the technical problem, the blank for the crack glaze ceramic product comprises the following components in parts by weight,

(1) 12-20 parts of feldspar powder,

(2) 50-80 parts of water-washed soil,

(3) 1-5 parts of talcum powder,

(4) 8-18 parts of pyrophyllite, wherein,

(5) 2-6 parts of clay, namely,

(6) 5-10 parts of a frit,

the frit comprises, by weight, 20-30 parts of quartz, 55-65 parts of feldspar and 12-20 parts of borax;

the preparation method comprises the following steps: ball: water is mixed according to the mass ratio of 1: 1.5: 1.1-1.2, ball milling for 24 hours, and adding water to dilute to 50-60 baume to obtain the slurry when the fineness of the slurry reaches 120 meshes and the screen residue is 0.4-0.6%.

Further, the coating comprises the following components in parts by weight,

(1) 15 parts of feldspar powder, wherein the feldspar powder comprises the following components,

(2) 60 parts of water-washed soil, namely,

(3) 2 parts of talcum powder,

(4) 10 parts of pyrophyllite, namely 10 parts of pyrophyllite,

(5) 5 parts of clay, namely 5 parts of clay,

(6) 8 parts of a fusion cake, namely 8 parts of fusion cake,

the frit comprises, by weight, 25 parts of quartz, 60 parts of feldspar and 15 parts of borax.

Further, when the fineness of the slurry reaches 120 meshes, the screen residue is 0.5 percent.

further, the expansion coefficient of the green body made of the present blank was 5.2X 10^-7-6.5×10^-7。

compared with the prior art, the invention has the obvious advantages that the pyrophyllite and the clinker are added into the blank and are combined for use, so that the expansion coefficient of the blank reaches 5.2 × 10^-7-6.5×10^-7The fired glaze surface has good crack effect, has no defects of pinholes, thin glaze, contracted glaze and the like, effectively reduces defective rate, improves production efficiency, reduces production cost, has exquisite appearance, and is suitable for high-grade ceramics such as high-grade ceramic wine bottles and the likeA porcelain product.

Detailed Description

The present invention will be further described with reference to the following examples.