Disclosure of Invention
The invention aims to provide a gold jade glaze for overcoming the defects in the prior art.
The purpose of the invention is realized by the following technical scheme:
the gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: 15-25 parts of ilmenite, 30-40 parts of glass, 5-10 parts of spotted stone, 10-15 parts of plant ash, 15-25 parts of porcelain stone, 15-20 parts of calcite and 10-15 parts of red feldspar; the overglaze comprises the following raw materials in parts by weight: 35-45 parts of feldspar, 5-8 parts of zinc oxide, 10-15 parts of quartz, 10-15 parts of agate and 5-10 parts of Fengcave temple soil.
The feldspar in the overglaze comprises 25-30 parts by weight of the trinary isthmus feldspar and 10-15 parts by weight of the southern summerhans feldspar.
Preferably, the glaze is prepared from two glazes of ground glaze and surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: ilmenite 20, glass 35, spotted stone 7.5, plant ash 12.5, porcelain stone 20, calcite 17.5 and red feldspar 12.5; the overglaze comprises the following raw materials in parts by weight: 27.5 parts of Sanmenxia feldspar, 12.5 parts of southern conveniences feldspar, 6.5 parts of zinc oxide, 12.5 parts of quartz, 12.5 parts of agate and 7.5 parts of Fengjingju soil.
The preparation method of the gold jade glaze comprises the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried, applying the surface glaze;
(3) the sintering specifically comprises the following stages:
oxidation stage: raising the temperature from room temperature to 1020-1080 ℃ within 4-6 h;
reduction stage: heating to 1290-1310 ℃ within 3.5-5 h;
and step three, cooling: slowly cooling to room temperature within 9-11 h.
Glazing by adopting a glaze dipping method in the step (2), wherein the concentration of the ground glaze slip is 30-40 baume degrees; the concentration of the overglaze slip is 55-65 Baume degrees.
The invention adopts the ground glaze and the surface glaze which are used in a composite way, and the firing method is optimized, so that the temperature is slowly reduced after the firing temperature is reached, and the novel glaze with the golden patches and the golden flow patterns on the dark blue ground color can be successfully fired, and the novel glaze is colorful, unique in texture and higher in artistic and ornamental values.
Detailed Description
Example 1
The gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: 15-25 parts of ilmenite, 30-40 parts of glass, 5-10 parts of spotted stone, 10-15 parts of plant ash, 15-25 parts of porcelain stone, 15-20 parts of calcite and 10-15 parts of red feldspar; the overglaze comprises the following raw materials in parts by weight: 35-45 parts of feldspar, 5-8 parts of zinc oxide, 10-15 parts of quartz, 10-15 parts of agate and 5-10 parts of Fengcave temple soil.
The invention adopts the ground glaze and the surface glaze composite glaze, which is not only beneficial to the combination of the blank body, but also beneficial to the generation of complex glaze color. Wherein ilmenite, variegated stone, porcelain stone, calcite and red feldspar in the ground glaze are products of Yuzhou local, and the red feldspar, the calcite, the porcelain stone and plant ash are common raw materials for manufacturing Jun porcelain and have the functions of a solvent and a strong cosolvent; ilmenite contains forty percent more titanium oxide and thirty percent more iron oxide, titanium and iron can be separated out golden crystal specks in the sintering process, and the speckles are local iron-poor ores containing iron oxide in the Yuzhou and are also used for providing iron elements for color development. The ground coat also adopts a large amount of glass, so that the fluidity of the glaze can be obviously improved, and golden flow lines can be formed; meanwhile, the expansion coefficient can be reduced, the bonding strength with the blank body is increased, and the adhesion of the overglaze is facilitated. The feldspar and quartz in the overglaze are used as a solvent and a cosolvent, the feldspar is a mixture of the trinary isthmus feldspar and the Nanzhao feldspar, wherein the aluminum content of the Nanzhao feldspar is higher than that of the trinary isthmus feldspar and the Nanzhao feldspar in 25-30 parts by weight, and the Nanzhao feldspar is higher than that of the trinary isthmus feldspar and the Yuzhou indigenous red feldspar, and the feldspar in different producing areas can be mixed for use, so that the product can obtain better stability by combining the components of the feldspar in different producing areas. The temple soil is clay substances taken from the temple of Feng-zhou ruzhou, and can enhance the adhesion of the overglaze.
The preparation method of the gold jade glaze is characterized by comprising the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried (about 20S), applying the surface glaze; preferably adopting a glaze dipping method to carry out glazing, wherein the concentration of the ground glaze slip is 30-40 baume degrees; the concentration of the overglaze slip is 55-65 baume degrees; the defects of shrinkage glaze, flow glaze and the like can be reduced by adopting proper glaze slip concentration;
(3) the sintering specifically comprises the following stages:
oxidation stage: raising the temperature from room temperature to 1020-1080 ℃ within 4-6 h;
reduction stage: heating to 1290-1310 ℃ within 3.5-5 h;
and step three, cooling: slowly cooling to room temperature within 9-11h, and adopting a slow cooling method to facilitate the precipitation of gold spots.
Under a proper high-temperature atmosphere, the gold and jade glaze can be successfully fired by adopting a firewood burning method, a coal burning method or a gas burning method, wherein the firing yield of the firewood burning method and the coal burning method is about 30 percent, and the gas burning method is about 50 percent.
Example 2
The gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: ilmenite 20, glass 35, spotted stone 7.5, plant ash 12.5, porcelain stone 20, calcite 17.5 and red feldspar 12.5; the overglaze comprises the following raw materials in parts by weight: 27.5 parts of Sanmenxia feldspar, 12.5 parts of southern conveniences feldspar, 6.5 parts of zinc oxide, 12.5 parts of quartz, 12.5 parts of agate and 7.5 parts of Fengjingju soil.
The preparation method of the gold jade glaze is characterized by comprising the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried (about 20S), applying the surface glaze; preferably adopting a glaze dipping method to carry out glazing, wherein the concentration of the ground glaze slip is 35 baume degrees; the concentration of the overglaze slip is 60 baume degrees;
(3) the sintering specifically comprises the following stages:
oxidation stage: raising the temperature from room temperature to 1050 ℃ within 5 h;
reduction stage: heating to 1300 ℃ within 4 h;
and step three, cooling: slowly cooled to room temperature over 10 h.
The glaze drawing after sintering is shown in figure 1, and the yield can reach 52 percent by adopting gas sintering.
Example 3
The gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: ilmenite 22, glass 34, spotted stone 8, plant ash 12.5, porcelain stone 18, calcite 20 and red feldspar 11; the overglaze comprises the following raw materials in parts by weight: the three-door gorge feldspar 29, the southern conveniences feldspar 10, the zinc oxide 6.5, the quartz 15, the agate 13 and the Fengcave temple soil 6.
The preparation method of the gold jade glaze is characterized by comprising the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried (about 20S), applying the surface glaze; preferably adopting a glaze dipping method to carry out glazing, wherein the concentration of the ground glaze slip is 38 baume degrees; the concentration of the overglaze slip is 62 baume degrees;
(3) the sintering specifically comprises the following stages:
oxidation stage: raising the temperature from room temperature to 1070 ℃ within 5 h;
reduction stage: heating to 1300 ℃ within 4.5 h;
and step three, cooling: slowly cooling to room temperature within 9-11 h.
Example 4
The gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: ilmenite 19, glass 39, spotted stone 5, plant ash 11, porcelain stone 22, calcite 17.5 and red feldspar 12.5; the overglaze comprises the following raw materials in parts by weight: the three-door gorge feldspar comprises 26 parts of the three-door gorge feldspar, 14 parts of the southern conveniences feldspar, 6 parts of zinc oxide, 11 parts of quartz, 15 parts of agate and 9 parts of temple soil.
The preparation method of the gold jade glaze is characterized by comprising the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried (about 20S), applying the surface glaze; preferably adopting a glaze dipping method to carry out glaze, wherein the concentration of the ground glaze slip is 34 baume degrees; the concentration of the overglaze slip is 60 baume degrees;
(3) the sintering specifically comprises the following stages:
oxidation stage: increasing the temperature from room temperature to 1040 ℃ within 6 h;
reduction stage: heating to 1310 ℃ within 4.5 h;
and step three, cooling: slowly cool to room temperature over 9 h.
Example 5
The gold jade glaze is prepared from two glazes of a ground glaze and a surface glaze, wherein the ground glaze comprises the following raw materials in parts by weight: ilmenite 21, glass 37, spotted stone 7.5, plant ash 10, porcelain stone 19, calcite 17 and red feldspar 13; the overglaze comprises the following raw materials in parts by weight: the three-door gorge feldspar, the south summit feldspar, 13, 5 zinc oxide, 10 quartz, 14 agate and 8 Fengcave temple soil.
The preparation method of the gold jade glaze is characterized by comprising the following steps:
(1) respectively mixing the ground glaze and the surface glaze raw materials, and performing ball milling to obtain ground glaze slip and surface glaze slip;
(2) applying base coat on the biscuit fired carcass; after the ground glaze is slightly dried (about 20S), applying the surface glaze; preferably adopting a glaze dipping method to carry out glazing, wherein the concentration of the ground glaze slip is 35 baume degrees; the concentration of the overglaze slip is 58 baume degrees;
(3) the sintering specifically comprises the following stages:
oxidation stage: raising the temperature from room temperature to 1050 ℃ within 5 h;
reduction stage: heating to 1290 ℃ within 5 h;
and step three, cooling: slowly cool to room temperature over 11 h.
The formulations of examples 6-13 of the present invention are shown in Table 1, and the remainder is the same as in example 2.