High temperature luminous glazing and its production process and application in luminous glazed tile

Abstract

The high temperature luminous glazing consists of SrAl2O4EuDy 50-68 wt%, SiO2 25-40 wt%, Al2O3 4-6 wt%, CaO 1.5-3.0 wt%, MgO 0.5-1.0 wt% and Fe2O3 0.1-0.8 wt%, and is prepared through mixing, grinding, high temperature baking, crushing and other steps. It may be used in producing luminous glazed tile. It contains no any matter harmful to human body, produces no any harmful matter during use and has no harm to human body and environment. The luminous glazed tile has short light absorbing time, long afterglow time and high adaptability to weather and environment.

Description

technical field

[0001] The invention relates to a luminous material technology, in particular to a luminous glaze production technology and its application in the production of luminous ceramic tiles. Background technique

[0002] Although there are many kinds of luminescent products for warning or prompting at night, they are all inseparable from the most basic luminescent materials, which are mostly sulfide luminescent materials with a small amount of radiation added, so It is easy to produce radioactive pollution; at the same time, due to the existence of sulfur, harmful gases such as sulfur dioxide and other sulfides are often produced during production and use, which will cause damage to the human body and the environment; in addition, sulfide luminescent materials are exposed to light for a long time It is easy to decompose, and its stability is poor. After long-term use, it cannot maintain a stable illuminance.

[0003] In addition, most of the above-mentioned existi...

Examples

Embodiment 1

[0024] Example 1 The luminous parameters are measured according to DIN67510, and the brightness at the 10th minute is 202.9mcd / m 2

[0025] 1. The high-temperature luminescent glaze is composed of the following components by weight percentage:

[0026] SrAl 2 o 4 EuDy (alkaline earth aluminate) 50%, SiO 2 40%, Al 2 o 3 6%, CaO2.5%, MgO 1.0%, Fe2O3 0.5%;

[0027] 2. The processing technology of the above-mentioned high-temperature luminescent glaze includes the following contents:

[0028] A. Mix and grind

[0029] After mixing the components described in 1 above, place them in a ball mill for 6 hours; and sieve to 325 mesh;

[0030] B. High temperature melting

[0031] Put the mixed and ground luminescent glaze on the shuttle furnace of the oxidation isolation device to burn the frit, the firing temperature is 800-1000°C, and the firing time is 3-6 hours;

[0032] C. Smash spare

[0033] Crush the above luminous glaze frit into 325 mesh to make powder:

[0034] 3...

Embodiment 2

[0042] Example 2 The luminous parameters are measured according to DIN67510, and the luminance at the 10th minute is 450.2mcd / m 2

[0043] 1. The high-temperature luminescent glaze is composed of the following components by weight percentage:

[0044] SrAl 2 o 4 EuDy (alkaline earth aluminate) 65%, SiO 2 25%, Al 2 o 3 5%, CaO2.5%, MgO1.0%, Fe 2 o 3 0.5%;

[0045] 2. The processing technology of the above-mentioned high-temperature luminescent glaze includes the following contents:

[0046] A. Mix and grind

[0047] After mixing the components described in 1 above, place them in a ball mill for 6 hours and sieve to 325 mesh;

[0048] B. High temperature melting

[0049] Put the mixed and ground luminescent glaze on the shuttle furnace of the oxidation isolation device to burn the frit, the firing temperature is 800-1000°C, and the firing time is 3-6 hours;

[0050] C. Smash spare

[0051] The above-mentioned luminescent glaze frit is crushed into 325 mesh and ma...

technical field

[0001] The invention relates to a luminous material technology, in particular to a luminous glaze production technology and its application in the production of luminous ceramic tiles. Background technique

[0002] Although there are many kinds of luminescent products for warning or prompting at night, they are all inseparable from the most basic luminescent materials, which are mostly sulfide luminescent materials with a small amount of radiation added, so It is easy to produce radioactive pollution; at the same time, due to the existence of sulfur, harmful gases such as sulfur dioxide and other sulfides are often produced during production and use, which will cause damage to the human body and the environment; in addition, sulfide luminescent materials are exposed to light for a long time It is easy to decompose, and its stability is poor. After long-term use, it cannot maintain a stable illuminance.

[0003] In addition, most of the above-mentioned existi...

Examples

Embodiment 1

[0024] Example 1 The luminous parameters are measured according to DIN67510, and the brightness at the 10th minute is 202.9mcd / m 2

[0025] 1. The high-temperature luminescent glaze is composed of the following components by weight percentage:

[0026] SrAl 2 o 4 EuDy (alkaline earth aluminate) 50%, SiO 2 40%, Al 2 o 3 6%, CaO2.5%, MgO 1.0%, Fe2O3 0.5%;

[0027] 2. The processing technology of the above-mentioned high-temperature luminescent glaze includes the following contents:

[0028] A. Mix and grind

[0029] After mixing the components described in 1 above, place them in a ball mill for 6 hours; and sieve to 325 mesh;

[0030] B. High temperature melting

[0031] Put the mixed and ground luminescent glaze on the shuttle furnace of the oxidation isolation device to burn the frit, the firing temperature is 800-1000°C, and the firing time is 3-6 hours;

[0032] C. Smash spare

[0033] Crush the above luminous glaze frit into 325 mesh to make powder:

[0034] 3...

Embodiment 2

[0042] Example 2 The luminous parameters are measured according to DIN67510, and the luminance at the 10th minute is 450.2mcd / m 2

[0043] 1. The high-temperature luminescent glaze is composed of the following components by weight percentage:

[0044] SrAl 2 o 4 EuDy (alkaline earth aluminate) 65%, SiO 2 25%, Al 2 o 3 5%, CaO2.5%, MgO1.0%, Fe 2 o 3 0.5%;

[0045] 2. The processing technology of the above-mentioned high-temperature luminescent glaze includes the following contents:

[0046] A. Mix and grind

[0047] After mixing the components described in 1 above, place them in a ball mill for 6 hours and sieve to 325 mesh;

[0048] B. High temperature melting

[0049] Put the mixed and ground luminescent glaze on the shuttle furnace of the oxidation isolation device to burn the frit, the firing temperature is 800-1000°C, and the firing time is 3-6 hours;

[0050] C. Smash spare

[0051] The above-mentioned luminescent glaze frit is crushed into 325 mesh and ma...