Novel medium-temperature sintered feldspathic porcelain and preparation method thereof

A new feldspar and medium-temperature technology, which is applied in the field of medium-temperature sintered feldspar porcelain and its preparation, can solve the problems of easy cracking of products, poor carcass strength, and easy production damage, etc., to solve the problem of poor carcass strength, The effect of reducing production cost and lowering firing temperature

Active Publication Date: 2016-01-06
景德镇市大瓷庄瓷业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with traditional high-temperature porcelain, feldspar porcelain also has its shortcomings. First, the strength of the carcass is relatively poor, and the product is prone to damage during long-term use; When the product is prone to bursting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) According to the mass percentage of the raw material composition of the new feldspar porcelain body: 19% feldspar, 45% kaolin, 30% quartz, 3% cooked talc, 3% lithium china stone, plus 6% calcium sulfate nanofiber additive;

[0015] (2) According to the selection of raw materials, crushing, batching, ball milling, fineness testing, pulping, sieving to remove iron, adding nanofiber additives and stirring evenly, pressing and squeezing the mud, and refining the mud for later use, the time for the ball milling process is 20 Hours, the fineness detection molding passes through a 250-mesh sieve, and the sieve residue is 0.09%;

[0016] (3) After drying the rolled body at 45°C, after 11 hours, biscuit firing to 1260°C, heat preservation for 60 minutes, natural cooling to room temperature and leaving the kiln to obtain a new feldspar porcelain body;

[0017] The whiteness of the new feldspar porcelain body is 85.6, the water absorption rate is 0.06, the thermal stability is...

Embodiment 2

[0019] (1) According to the mass percentage of the raw material composition of the new feldspar porcelain body: 30% feldspar, 38% kaolin, 26% quartz, 3% cooked talc, 3% lithium china stone, plus 8% calcium sulfate nanofiber additive;

[0020] (2) According to the selection of raw materials, crushing, batching, ball milling, fineness testing, pulping, sieving to remove iron, adding nanofiber additives and stirring evenly, pressing and squeezing the mud, and refining the mud for later use, the time for the ball milling process is 20 Hours, the fineness detection molding passes through a 250 mesh sieve, and the sieve residue is 0.08%;

[0021] (3) After drying the rolled body at 45°C, after 11 hours, biscuit firing to 1260°C, heat preservation for 60 minutes, natural cooling to room temperature and leaving the kiln to obtain a new feldspar porcelain body;

[0022] The whiteness of the new feldspar porcelain body is 86.9, the water absorption rate is 0.06, the thermal stability is...

Embodiment 3

[0024] (1) According to the mass percentage of the raw material composition of the new feldspar porcelain body: feldspar 24%, kaolin 50%, quartz 20%, cooked talc 3%, lithium china stone 3%, and calcium sulfate nanofiber additive 9%;

[0025] (2) According to the selection of raw materials, crushing, batching, ball milling, fineness testing, pulping, sieving to remove iron, adding nanofiber additives and stirring evenly, pressing and squeezing the mud, and refining the mud for later use, the time for the ball milling process is 20 Hours, the fineness detection molding passes through a 250 mesh sieve, and the sieve residue is 0.1%;

[0026] (3) After drying the rolled body at 45°C, after 11 hours, biscuit firing to 1260°C, heat preservation for 60 minutes, natural cooling to room temperature and leaving the kiln to obtain a new feldspar porcelain body;

[0027] The whiteness of the new feldspar porcelain body is 87.2, the water absorption rate is 0.06, the thermal stability is 2...

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Abstract

The invention discloses novel medium-temperature sintered feldspathic porcelain and a preparation method thereof. The porcelain is prepared from, by mass, 15-30% of feldspar, 30-50% of kaolin, 10-30% of quartz, 3% of calcinated talc, 3% of lithium chinastone and 5-10% of nanofibers with calcium sulfate additionally added; the preparation method comprises the steps of conducting raw material fine selection, pulverization, material matching, ball milling, fineness detection, slurry feeding and sieving for removing iron, adding the calcium sulfate nanofibers and stirring the mixture uniformly, conducting press filtering for extracting paste and pugging, then after the direct formation and drying procedures are completed and 11 hours later, conducting biscuit firing till the temperature reaches 1260 DEG C, preserving the temperature for 60 minutes, conducting cooling, and obtaining novel feldspathic porcelain pre-sintered billets. By means of the method, the defects of existing feldspathic porcelain that billet bodies are poor in strength and heat stability are overcome. The novel medium-temperature sintered feldspathic porcelain is scientific and reasonable in production method, easy to carry out, high in yield, good in product quality and capable of substantially shortening the sintering cycle and lowering the sintering temperature, the production cost is remarkably lowered, and the novel medium-temperature sintered feldspathic porcelain has a wide market prospect.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a medium-temperature sintered neo-feldspar porcelain and a preparation method thereof. Background technique [0002] The "feldspar-quartz-kaolin" ternary system porcelain with feldspar as flux is called feldspar porcelain. Because my country's feldspar resources are very rich and the geological reserves are quite considerable, the products produced have the advantages of white porcelain, translucent, compact cross-section, low water absorption, good chemical stability, and wide firing range. Therefore, it is widely used in the production of daily ceramics. be widely used. However, compared with traditional high-temperature porcelain, feldspar porcelain also has its shortcomings. First, the strength of the carcass is relatively poor, and the product is prone to damage during long-term use; , the product is prone to bursting. Therefore, resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04C04B33/24
Inventor 王孝文盖曰贵
Owner 景德镇市大瓷庄瓷业有限公司
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