CN104150868A - Bone china raw material and preparation technique thereof - Google Patents

Abstract

The invention provides a bone china raw material and a preparation technique thereof, relating to the technical field of ceramic manufacturing. The bone china raw material is prepared from the following raw materials in percentage by mass: 40-50% of animal bone meal, 25-34% of kaolin, 8-14% of feldspar and quartz, 8-10% of clay, 13-17% of additive and 1-2% of bentonite. The preparation technique comprises the following steps: pulverizing; iron removal and screening; and filtering and stirring. The blank preparation method is simple; the raw material proportioning can determine the crystalline phase composition and structure of the china body, and has important influences on the performance indexes of the product.

Description

A kind of china raw material and preparation technology thereof

Technical field

The present invention relates to ceramic production technology field, be specifically related to a kind of china raw material and preparation technology thereof.

Background technology

Bone China results from Britain the earliest, and because its moulding is unique, brevity and lucidity, quality is pure white and fine and smooth, is various countries noble porcelain for a long time always, is at present unique high-grade porcelain kind of generally acknowledging in the world.Bone China resulted from a high-grade porcelain kind of Britain, apart from the history of modern existing more than 300 year.Because of its " thin as a piece of paper, saturating if mirror, sound are as single sonorous stone, white as a jade ", porcelain exquisiteness is penetrating, type elegance attractive in appearance, the moist light of color face, the colourful feature of flower face, having achieved its pure white quality and luxurious moulding, had concurrently and use and artistic dual value, is the treasure of imperial palace special product and noble's collection in history.

Bone China is that to take bone black, clay, feldspar and the quartz of animal be basic raw material, through high temperature biscuiting and low temperature sinter, fires a kind of porcelain forming for twice.For a long time, during in world wide, traditional china is produced, the improper use of raw material, all can cause china production difficulty large, the problem that qualification rate is low.

Summary of the invention

One of object of the present invention is the formula that is to develop a kind of china raw material, the defect existing to solve prior art.

Technical problem to be solved by this invention realizes by the following technical solutions:

A china raw material, comprises component and content, according to mass percent, is:

A kind of preparation technology of china raw material comprises the steps:

1) pulverizing process; The making raw material of china is respectively charged in ball mill, grinds.

2) mud deironing operation of sieving: by through step 1) obtaining filters with screen cloth, and roll extrusion mud is selected the two-layer screen cloth of 300 orders, and slip-casting mud is selected 220 orders, the screen cloth of 250 each one decks of order, and glaze slip adopts 220 orders, the screen cloth of 250 each one decks of order; After filtration, re-use tramp iron separator and remove the iron in mud, to avoid forming the spot of chocolate in finished product.

3) filter stir operation: according to conventional method by step 2) in deironing slurry elimination water, filter after mud cake moisture content between 21%～24%; Then adopt vacuum deairing machine pugging, make china stock; During pugging, pug mill vacuum tightness is more than 0.097Mpa.

The invention has the beneficial effects as follows: stock method prepared by the present invention is simple, above each proportioning raw materials is not only determining that the crystalline phase of porcelain body forms and ceramic structure, and the property indices of goods is produced to material impact.

Embodiment

For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.

Embodiment 1

A china raw material, comprises component and content, according to mass percent, is:

A kind of preparation technology of china raw material comprises the steps:

1) pulverizing process; The making raw material of china is respectively charged in ball mill, grinds.

2) mud deironing operation of sieving: by through step 1) obtaining filters with screen cloth, and roll extrusion mud is selected the two-layer screen cloth of 300 orders, and slip-casting mud is selected 220 orders, the screen cloth of 250 each one decks of order, and glaze slip adopts 220 orders, the screen cloth of 250 each one decks of order; After filtration, re-use tramp iron separator and remove the iron in mud, to avoid forming the spot of chocolate in finished product.

3) filter stir operation: according to conventional method by step 2) in deironing slurry elimination water, filter after mud cake moisture content 22%; Then adopt vacuum deairing machine pugging, make china stock; During pugging, pug mill vacuum tightness is at 0.098Mpa.

Embodiment 2

A china raw material, comprises component and content, according to mass percent, is:

A kind of preparation technology of china raw material comprises the steps:

1) pulverizing process; The making raw material of china is respectively charged in ball mill, grinds.

2) mud deironing operation of sieving: by through step 1) obtaining filters with screen cloth, and roll extrusion mud is selected the two-layer screen cloth of 300 orders, and slip-casting mud is selected 220 orders, the screen cloth of 250 each one decks of order, and glaze slip adopts 220 orders, the screen cloth of 250 each one decks of order; After filtration, re-use tramp iron separator and remove the iron in mud, to avoid forming the spot of chocolate in finished product.

3) filter stir operation: according to conventional method by step 2) in deironing slurry elimination water, filter after mud cake moisture content between 21%～24%; Then adopt vacuum deairing machine pugging, make china stock; During pugging, pug mill vacuum tightness is at 0.099Mpa.

More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (1)

1. a china raw material, comprises component and content, it is characterized in that: according to mass percent, be:

A kind of preparation technology of china raw material comprises the steps:

1) pulverizing process; The making raw material of china is respectively charged in ball mill, grinds;

2) mud deironing operation of sieving: by through step 1) obtaining filters with screen cloth, and roll extrusion mud is selected the two-layer screen cloth of 300 orders, and slip-casting mud is selected 220 orders, the screen cloth of 250 each one decks of order, and glaze slip adopts 220 orders, the screen cloth of 250 each one decks of order; After filtration, re-use tramp iron separator and remove the iron in mud, to avoid forming the spot of chocolate in finished product;

3) filter stir operation: according to conventional method by step 2) in deironing slurry elimination water, filter after mud cake moisture content between 21%～24%; Then adopt vacuum deairing machine pugging, make china stock; During pugging, pug mill vacuum tightness is more than 0.097Mpa.