CN103011905B

CN103011905B - Lead-free open-flame fast-firing full-frit bone-china glaze and preparation method for same

Info

Publication number: CN103011905B
Application number: CN201310000746.8A
Authority: CN
Inventors: 张健; 胡智敏
Original assignee: Weiyuan County Great He Ceramic Raw Material Co Ltd
Current assignee: Weiyuan County Great He Ceramic Raw Material Co Ltd
Priority date: 2013-01-05
Filing date: 2013-01-05
Publication date: 2014-07-16
Anticipated expiration: 2033-01-05
Also published as: CN103011905A

Abstract

The invention discloses a lead-free open-flame fast-firing full-frit bone-china glaze and a preparation method for the same. The lead-free open-flame fast-firing full-frit bone-china glaze comprises the following raw materials in percentage by mass: 42-60% of SiO2, 8-15% of Al2O3, 0.5-6% of B2O3, 8-16% of CaO, 0.4-2.6% of MgO, 3-9% of K2O, 0.5-5% of Na2O, 0-2% of Li2O and 4-20% of ZnO. The bone-china glaze disclosed by the invention is wide in application range, good in glaze slip flowability, wide in firing temperature, reasonable in process flow and reduced in use cost. With the adoption of the bone-china glaze disclosed by the invention, a glaze surface can meet standard requirements, the firing temperature can be reduced, the firing period can be shortened, the energy expense can be greatly reduced, and the market competitiveness of products can be enhanced.

Description

A kind of unleaded flaming burns fine melt piece sclerotin enamel and preparation method thereof soon

Technical field

The invention belongs to enamel field, be specifically related to a kind of unleaded flaming and burn soon fine melt piece sclerotin enamel and preparation method thereof.

Background technology

Along with the raising of social life level, people are to self healthy pay attention to day by day.The glaze that domestic ceramics was used in the past all more or less contain lead because lead is strong fusing assistant, be also strong developer, former to lead during without mandatory requirement, in Glaze for chinaware a large amount of introduce plumbous; And now daily town of porcelain is had to mandatory requirement to plumbous cadmium etc., and plumbous stripping is had to strict requirement, particularly the high-grade porcelain as Bone China, requires tighter; And along with the climbing up and up of energy prices, requiring save energy, the requirement that reduces manufacturing cost is also more and more stronger.And the production of traditional household china is all to adopt high temperature substantially, the cycle, major part was also used muffle burn generally all more than tens hours; Therefore, change the process for calcining of traditional domestic ceramics, by muffle burning, change flaming into and burn till, by high temperature, change warm quick fever into.

Summary of the invention

The object of this invention is to provide the preparing ceramic clinker of the fast lead and cadmium free of burning of a kind of middle temperature flaming and its manufacture method.Solve existing sclerotin enamel all more or less contain lead, and the overwhelming majority is all only applicable to muffle burn; Can not meet the requirement to environmental protection of household china, to energy-saving and cost-reducing requirement.

Technical scheme of the present invention is: a kind of unleaded flaming burns fine melt piece sclerotin enamel soon, and its raw materials quality per-cent consists of: SiO ₂42～60%, Al ₂o ₃8～15%, B ₂o ₃0.5～6%, CaO 8～16%, MgO 0.4～2.6%, K ₂o 3～9%, Na ₂o 0.5～5%, Li ₂o 0～2%, ZnO 4～20%.

Preferably, described raw materials quality per-cent consists of: SiO ₂54～54.5%, Al ₂o ₃10.5%, B ₂o ₃1～2.1%, CaO 12.5～12.6%, MgO 1.4～1.5%, K ₂o 6.5～7%, Na ₂o 1.2～1.3%, Li ₂o 0.6～1.1%, ZnO 10～12%.

The present invention also provides a kind of unleaded flaming to burn soon the preparation method of fine melt piece sclerotin enamel, and it comprises batching, founds, by following raw materials quality per-cent batching: SiO ₂42～60%, Al ₂o ₃8～15%, B ₂o ₃0.5～6%, CaO 8～16%, MgO 0.4～2.6%, K ₂o 3～9%, Na ₂o 0.5～5%, Li ₂o 0～2%, ZnO 4～20%.

The temperature of founding further, is 1540～1570 ℃.

Its concrete steps are: raw material enters factory, check, batching, check batch mixing uniformity coefficient, founds, checks the degree of founding, shrend, check, to qualified frit packing.

The present invention can reach following beneficial effect after adopting technique scheme:

1, the scope of application is wide: the present invention both can be used on the Bone China that flaming burns till, and also can be used on the Bone China of muffle burn.

2, the mobility of glaze slip is fine: the glaze slip that the present invention makes in working order under not thixotroping, while adopting glaze spraying, even if spray very thinly, after spray, glaze also can flatten, and does not have ripple.

3, firing temperature is wide: glass melting temperature of the present invention is at 1530-1570 ℃, and frit is without raw material, is transparent light blue; Use temperature is at 1110-1160 ℃.

4, technical process is reasonable: the high-grade bone china product that adopts the present invention to produce, and its whiteness is the color of sclerotin itself, and glaze is flat, free of pinholes, the light transmission having had; Occupy at present advanced international level.

5, reduced use cost: employing the present invention not only glaze can meet standard-required, also can reduce firing temperature, shortens firing period, greatly reduces energy expenditure, strengthens the competitiveness of product in market.

embodiment:

Below in conjunction with specific embodiment, the present invention is described in further detail.(unit is mass percent).

Its preparation technology is as follows: raw material enters factory, check, batching, check batch mixing uniformity coefficient, founds, checks the degree of founding, shrend, check, to qualified frit packing.By following raw materials quality per-cent batching: SiO ₂42～60%, Al ₂o ₃8～15%, B ₂o ₃0.5～6%, CaO 8～16%, MgO 0.4～2.6%, K ₂o 3～9%, Na ₂o 0.5～5%, Li ₂o 0～2%, ZnO 4～20%.The temperature of founding is 1540～1570 ℃.

According to the parameter in table 1, test.

Table 1: embodiment parameter list (unit is mass percent):

Form	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5	Embodiment 6	Embodiment 7	Embodiment 8
									SiO2	42	50	52	54	55	54.5	58	60
Al2O3	15	12	11	10.5	10	10.5	8.7	8
									CaO	16	10	13	12.6	10	12.5	8	8
MgO	2.6	2	1.6	1.4	1.1	1.5	1.8	0.4
									K2O	9	7	7.6	7	6.7	6.5	2.5	2
Li2O	2	1.4	1.2	1.1	1.1	0.6	0	0.5
									Na2O	0.5	1	2.5	1.3	3	1.2	0.5	1
ZnO	4	8	10	10	12	12	20	14
									B2O3	3	6	1	2.1	0.6	1	0.5	5.5
Glass melting temperature (℃)	1530	1530	1540	1540	1540	1540	1560	1570
									Ball milling glaze slip proportion (g/cm)	1.85	1.85	1.85	1.85	1.85	1.85	1.85	1.85
Glaze slip fineness (%)	0.4	0.45	0.36	0.47	0.32	0.35	0.3	0.35
									Glaze firing temperature (℃)	1100	1105	1110	1120	1125	1130	1150	1160
Glaze quality	Good luster	Good luster, micro-pin hole	Good luster	Good luster, glaze is flat	Good luster, glaze is more flat	Good luster, glaze is flat	Good luster	Good luster

As can be seen from Table 1, glaze quality good luster prepared by the present invention, especially, when raw materials quality per-cent is: SiO ₂54～54.5%, Al ₂o ₃10.5%, B ₂o ₃1～2.1%, CaO 12.5～12.6%, MgO 1.4～1.5%, K ₂o 6.5～7%, Na ₂o 1.2～1.3%, Li ₂when O 0.6～1.1%, ZnO 10～12%, glaze good luster, glaze are flat.

Claims

1. unleaded flaming burns a fine melt piece sclerotin enamel soon, it is characterized in that, its raw materials quality per-cent consists of: SiO ₂54～54.5%, Al ₂o ₃10.5%, B ₂o ₃1～2.1%, CaO 12.5～12.6%, MgO 1.4～1.5%, K ₂o 6.5～7%, Na ₂o 1.2～1.3%, Li ₂o 0.6～1.1%, ZnO 10～12%.