Leadfree fritted glaze suitable for secondary sintering

A lead-free frit and secondary firing technology, applied in the field of improved lead-free frit glaze, can solve the problems of dullness, adaptability limitation, and many glaze defects, and achieve high yield, high strength and thermal stability. Effects of stability, good glaze quality

Inactive Publication Date: 2006-12-27
淄博硅元投资控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some have quality problems of their own products, many glaze defects, serious blistering and dull phenomena, which have always been the main obstacles to the production of high-grade porcelain after secondary firing; some have limited adaptability, and some lead-free glazes are only limited to bone china. , It is suitable for high quartz porcelain, but not for steatite porcelain, etc.

Method used

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  • Leadfree fritted glaze suitable for secondary sintering
  • Leadfree fritted glaze suitable for secondary sintering
  • Leadfree fritted glaze suitable for secondary sintering

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Experimental program
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Effect test

Embodiment 5

[0044] The present invention is applicable to the lead-free frit glaze that second firing is used, and the weight percentage of its batching raw material is composed of:

[0045] Feldspar 35.5%, Quartz 15.0%, Talc 3.5%, Light Calcium Carbonate 6.0%, Zinc Oxide 3.0%, Borax 8.0%, Boric Acid 2.0%, Lithium Carbonate 2.0%, Barium Carbonate 8.0%, Kaolin 10.0% and Zirconia 7.0% %.

Embodiment 6

[0047] The present invention is applicable to the lead-free frit glaze that second firing is used, and the weight percentage of its batching raw material is composed of:

[0048] Feldspar 38.0%, Quartz 12.0%, Aluminum Hydroxide 5.0%, Talc 5.0%, Light Calcium Carbonate 5.0%, Zinc Oxide 2.0%, Borax 10.0%, Boric Acid 4.0%, Strontium Carbonate 2.0%, Barium Carbonate 3.0%, Kaolin 6.0% and zirconia 8.0%.

Embodiment 7

[0050] The present invention is applicable to the lead-free frit glaze that second firing is used, and the weight percentage of its batching raw material is composed of:

[0051] Feldspar 52.0%, Quartz 7.0%, Talc 1.0%, Light Calcium Carbonate 5.5%, Zinc Oxide 1.0%, Borax 6.0%, Boric Acid 2.0%, Strontium Carbonate 0.5%, Barium Carbonate 5.0%, Kaolin 15.0% and Zirconia 5.0 %.

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Abstract

The invention discloses a leadless fritted glaze, which comprises the following parts: 35.0-60.0%SiO2, 14.0-18.0%Al2O3, 3.0-10.0%CaO, 0.0-5.0%MgO, 5.0-10.0%K2O, 2.0-5.0%Na2O, 5.0-10.0%ZnO, 4.0-12.0%B2O3, 1.0-5.0%SrO, 0.0-1.0 %Li2O, 0.0-8.0%BaO and 5.0-9.0%ZrO2. The invention solves masking problem for magnesium ceramic glaze surface, which prevents environmental pollution due to overcoming to flow lead and cadmium.

Description

technical field [0001] The invention relates to an improved lead-free frit glaze, which is suitable for secondary firing of various porcelains. Background technique [0002] With the improvement of people's awareness of nature and living standards, many sources of pollution in our daily life have been discovered. In order to ensure a healthier life for human beings and the sustainable development of the earth on which human beings depend, people have formulated various restrictions and standards, including daily-use ceramic products that are closely related to human life. [0003] In the international high-grade daily-use fine porcelain characterized by secondary firing (high-temperature plain firing, low-temperature glaze firing), bone china is the mainstream variety, with a history of more than 200 years. In the 1970s and 1980s, talc porcelain and high-quartz porcelain were successfully developed in Shandong. By the end of the 20th century, high-grade daily-use fine porce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86C03C8/02
CPCC03C3/062C03C3/066C03C3/087C03C3/16C03C3/093C03C3/097
Inventor 张儒岭王磊尚庆刚任允鹏
Owner 淄博硅元投资控股有限公司
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