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Lead-free transparent frit for preparing ceramics

A technology of transparent frit and ceramics, which is applied in the field of ceramic preparation, can solve the problems of low frit bearing temperature, rough ceramic surface, easy damage, etc., and achieve the effect of low firing temperature, good gloss and enhanced stability

Inactive Publication Date: 2019-04-19
江西省千陶新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, a kind of lead-free transparent frit for preparing ceramics provided in the above-mentioned technical solution still has many disadvantages when it is used in practice. In actual use to prepare ceramics, the surface of the prepared ceramics is relatively rough, and the frit can withstand low temperatures and is easily damaged

Method used

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Effect test

Embodiment 1

[0022] The invention provides a lead-free transparent frit for preparing ceramics, which includes main materials and auxiliary materials, and the main chemical components of the main materials include: SiO 2 , B 2 o 2 、Al 2 o 3 , ZnO, Li 2 O, Na 2 O, MgO, K 2 O and CaO, the main chemical components of the auxiliary materials include: SrO, Bi 2 o 3 , Re, nitrate, titanium powder and vanadium pentoxide, wherein the ingredients in the main material and auxiliary materials adopt the following ratio according to the mass parts: SiO 2 8 copies, B 2 o 2 4 parts, Al 2 o 3 6 parts, ZnO 4 parts, Li 2 O 6 parts, Na 2 O 4 parts, MgO 2 parts, K 2 4 parts of O, 3 parts of CaO, 2 parts of SrO, Bi 2 o 3 1 part, Re 3 parts, nitrate 1 part, titanium powder 3 parts, vanadium pentoxide 2 parts.

[0023] The chemical components in the main material are spodumene and Suzhou soil, and the nitrate is sodium nitrate or potassium nitrate.

[0024] The present invention also provides a...

Embodiment 2

[0031] The invention provides a lead-free transparent frit for preparing ceramics, which includes main materials and auxiliary materials, and the main chemical components of the main materials include: SiO 2 , B 2 o 2 、Al 2 o 3 , ZnO, Li 2 O, Na 2 O, MgO, K 2O and CaO, the main chemical components of the auxiliary materials include: SrO, Bi 2 o 3 , Re, nitrate, titanium powder and vanadium pentoxide, wherein the ingredients in the main material and auxiliary materials adopt the following ratio according to the mass parts: SiO 2 16 copies, B 2 o 2 8 copies, Al 2 o 3 10 parts, ZnO 8 parts, Li 2 O 8 parts, Na 2 O 10 parts, MgO 6 parts, K 2 O 6 parts, CaO 9 parts, SrO 6 parts, Bi 2 o 3 3 parts, Re 6 parts, nitrate 2 parts, titanium powder 5 parts, vanadium pentoxide 4 parts.

[0032] The chemical components in the main material are spodumene and Suzhou soil, and the nitrate is sodium nitrate or potassium nitrate.

[0033] The present invention also provides a pre...

Embodiment 3

[0040] The invention provides a lead-free transparent frit for preparing ceramics, which includes main materials and auxiliary materials, and the main chemical components of the main materials include: SiO 2 , B 2 o 2 、Al 2 o 3 , ZnO, Li 2 O, Na 2 O, MgO, K 2 O and CaO, the main chemical components of the auxiliary materials include: SrO, Bi 2 o 3 , Re, nitrate, titanium powder and vanadium pentoxide, wherein the ingredients in the main material and auxiliary materials adopt the following ratio according to the mass parts: SiO 2 12 copies, B 2 o 2 6 parts, Al 2 o 3 8 parts, ZnO 6 parts, Li 2 O 7 parts, Na 2 O 7 parts, MgO 4 parts, K 2 O 5 parts, CaO 6 parts, SrO 4 parts, Bi 2 o 3 2 parts, Re 4 parts, nitrate 1.5 parts, titanium powder 4 parts, vanadium pentoxide 3 parts.

[0041] The chemical components in the main material are spodumene and Suzhou soil, and the nitrate is sodium nitrate or potassium nitrate.

[0042] The present invention also provides a pre...

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Abstract

The invention discloses lead-free transparent frit for preparing ceramics, and particularly relates to the field of ceramic preparation. The lead-free transparent frit comprises main ingredients and accessory ingredients, wherein the main ingredients mainly comprise SiO2, B2O2, Al2O3, ZnO, Li2O, Na2O, MgO, K2O and CaO, and the accessory ingredients mainly comprise SrO, Bi2O3, Re, nitrate, titaniumpowder and vanadium pentoxide. Firing is conducted by using a lithium-containing compound or mineral spodumene and Suzhou soil as raw materials, a chemical substances formed through firing replaces PbO in lead-containing glaze, and the minimum eutectic mixture is formed together, and therefore, lead oxide is replaced. A low glaze firing temperature and a wide firing range are ensued, the glaze glossiness can be ensured, and matching of the expansion coefficient can be ensured. Li2O is an oxide with a strong melting function, the expansion coefficient of the glaze can be significantly reduced,and the durability is improved; when the Li2O is added into the frit, the lead-free transparent frit which is high in elasticity and high in glossiness can be obtained at a low glaze firing temperature, B2O2 can obviously reduce the melting temperature and the viscosity of the frit, and the B2O2 can be used as a strong fluxing agent.

Description

technical field [0001] The invention relates to the technical field of ceramic preparation, more specifically, the invention relates to a lead-free transparent frit for preparing ceramics. Background technique [0002] Ceramic products have been widely used in the fields of daily necessities, building materials, and artworks because of their high density and good decorative effects. However, in the prior art, the frits used for pottery are mostly added with heavy metal lead, which is poor in environmental protection. , and general ceramic glazes are opaque, with poor brightness and poor color sense. The ceramic glaze frit with lead as the main raw material has the advantages of excellent melting performance and wide firing range, but the lead-containing frit The lead contained in the block has great toxicity to the human body, and the frits used for pottery in the prior art generally have poor enamel, opaqueness, will cover the color of the material, cannot show the texture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/04
CPCC03C8/04
Inventor 周存华刘敬文周绍忠
Owner 江西省千陶新型材料有限公司
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