Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof

A manufacturing method, the technology of lithium-magnesium porcelain, applied in the field of ceramic manufacturing, can solve problems such as high energy consumption costs, unaffordable ceramic enterprises, and reduced market competitiveness, so as to facilitate large-scale production, improve market competitiveness, and reduce The effect of fuel costs

Inactive Publication Date: 2011-05-04
QUANZHOU KUNDA GIFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high firing temperature, the fuel cost has increased greatly, and the fuel cost occupies a large proportion in the production cost of porcelain. In recent years, the prices of oil, electricity, gas and coal have continued to rise, which has had a significant impact on the development of the ceramic industry. Affected by many ceramic enterprises due to high energy consumption costs, product prices have risen, which has reduced market competitiveness; some ceramic enterprises are on the verge of bankruptcy because they cannot bear high energy consumption costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of lithium-magnesium porcelain fired at low temperature of the present invention, its manufacture method is as follows:

[0017] Step 1, the preparation of blanks: 12% spodumene, 8% spodumene, 50% talc, 10% serpentine, 5% magnesite and 15% white clay are prepared into blanks, and the chemical components in the blanks The weight percentage content is as follows: SiO 2 62.35%; Al 2 o 3 4.12%; MgO 19.64%; CaO 2.26%; Na 2 O 0.36%; K 2 O 0.92%; Li 2 O 4.31%; Fe 2 o 3 0.09%; loss on ignition 5.95%;

[0018] Step 2: Preparation of glaze: 64% of boron-containing lead-free frit, 7% of talc, 12% of lithium feldspar, 5% of zinc oxide, 6% of light calcium carbonate and 6% of kaolin are prepared into glaze, and the glaze The weight percent content of each chemical composition in is as follows: SiO 2 55.97%; Al 2 o 3 9.14%; CaO 6.32%; MgO 3.37%; K 2 O 4.08%; Na 2 O 7.83%; Li 2 O2.16%; ZnO 4.79%; B 2 o 3 6.34%;

[0019] Step 3, the production of blanks: gri...

Embodiment 2

[0022] A kind of lithium-magnesium porcelain fired at low temperature of the present invention, its manufacture method is as follows:

[0023] Step 1, the preparation of the blank: 10% spodumene, 8% spodumene, 3% lepidolite, 48% talc, 8% serpentine, 6% magnesite and 17% white clay are prepared into a blank;

[0024] Step 2: preparation of the glaze: prepare the glaze with 66% of boron-containing lead-free frit, 8% of talc, 10% of lithium feldspar, 4% of zinc oxide, 7% of light calcium carbonate and 5% of kaolin;

[0025] Step 3, the production of blanks: grind each raw material in step 1 in a ball mill respectively, and the residue of passing through a 250-mesh sieve is required to be less than 0.2%; mix various ground raw materials in the slurry tank according to the formula weighing, Stir and homogenize; remove iron from the mixed and homogenized billet slurry through a high-magnetic iron remover; dehydrate the finished billet slurry through a filter press to make a mud cake...

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Abstract

The invention provides lithium-magnesium ceramic fired at low temperature and a manufacturing method thereof. A lithium-magnesium ceramic blank comprises 15-25wt% of lithium material, 60-70wt% of magnesium material and 10-20wt% of clay and is required to comprise the following chemical components in percentage by weight: 55-65% of SiO2, 1-5% of Al2O3, 15-25% of MgO, 1-4% of CaO, less than 1% of Na2O, less than 1.5% of K2O, 4-6% of Li2O4 and not more than 0.3% of Fe2O3, wherein ignition loss is 5-7%. Compared with the prior art, in the invention, the lithium material is used as a main fluxing agent capable of greatly reducing firing temperature, thereby reducing fuel cost and improving market competitiveness of products; the magnesium material is a main skeleton-forming constituent capable of preventing firing deformation; and the clay is used as main bonding constituent so as to ensure that a plasticity index meets a forming requirement.

Description

technical field [0001] The invention relates to the field of ceramic manufacturing, in particular to a low-temperature fired lithium-magnesium porcelain and a manufacturing method thereof. Background technique [0002] At present, porcelain mainly uses kaolin, quartz, feldspar, clay, etc. as the main body raw materials, and the firing temperature is mostly above 1250°C. The main crystal phase of the porcelain body is mullite and quartz; the glass phase of the porcelain body is mainly potassium sodium silicate. Salt. Due to the high firing temperature, the fuel cost has increased greatly, and the fuel cost occupies a large proportion in the production cost of porcelain. In recent years, the prices of oil, electricity, gas and coal have continued to rise, which has had a significant impact on the development of the ceramic industry. Influenced by many ceramic enterprises due to the high cost of energy consumption, product prices have risen, which has reduced market competitiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/622C04B35/64
Inventor 池至铣
Owner QUANZHOU KUNDA GIFT
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