CN1045743C - Forming method for ceramic wood grain tile - Google Patents

Abstract

The present invention relates to a forming method for ceramic wood grain tiles, which adopts two or more than two mud materials which have basically the same drying rate and shrinkage, and colors after calcination have contrast. A raw material for serving as background color is 95% to 55%, and a raw material for serving as grains is 5% to 45%. Then, the raw materials are continuously mixed, blanked and delivered to a vacuum extruder, and the raw materials are formed by extrusion by a mould. Wood grain textures of the mud blank penetrate the whole product, and wood grain ceramic tiles are made after calcination. The formed wood grain texture is lifelike and natural.

Description

A kind of forming method of ceramic wood grain tile

The present invention relates to the forming method of a kind of forming method of ceramic tile, particularly a kind of ceramic wood grain tile.

The existing ceramic tile that has pattern on it, as color glazed brick, Imitation Rock Porcelain Tiles all be since the stamping forming moulded pottery not yet put in a kiln to bake drying of powder after, stamp pattern or glaze colours on the surface and after calcining, become finished product, because patterned layer is very thin, after having used a period of time, will be subjected to very big wearing and tearing, and formed dull image, not nature.

The object of the present invention is to provide a kind of wear-resistant, graceful ceramic wood grain tile true to nature, the textured pattern of direct formation penetration entire product endoplasm when the moulded pottery not yet put in a kiln to bake moulding of pattern.

The objective of the invention is to realize by following technical scheme:

The forming method of ceramic wood grain tile is:

A, two kinds of outfits or the above index of aridity, percent of firing shrinkage basically identical, and calcining back color has the raw material of contrast; The raw material that the raw material of wherein making background color accounts for 95%-55%, make lines accounts for 5%-45%, and moisture content is 10%-30%;

B, according to the size of required color contrast in proportion with the extruder of above-mentioned raw materials input band spiral leaf: drop into the raw material of making background color earlier, after treating to enter extruder fully, drop into the raw material of making lines again, then drop into the raw material of making background color again, drop into the raw material of making lines intermittently again, so circulation intersects blanking continuously;

The spiral leaf of c, extruder with above-mentioned raw materials to spiral extrusion screw propulsion;

D, through the extrusion molding of mould extrusion, and the extrusion sectional area of mould should be not more than 1/2 of spiral extrusion sectional area.

The inventive method is simple, made product pattern penetration entire product endoplasm, and the high pattern of wearability is natural, graceful, and effect is true to nature.

Fig. 1 is an equipment used in the present invention---the structural representation of vacuum-extruder.

The invention will be further elaborated with embodiment with reference to the accompanying drawings;

At first be equipped with two kinds of raw materials, and process according to a conventional method respectively, the moisture content of various raw materials is 10%～30%, and their drying shrinkage and percent of firing shrinkage are answered basically identical, and the color after the calcining will have certain contrast.

Embodiment one, raw material each good after, requirement according to the product color contrast depth, at first the background color pug of 3 shovel moisture content 10% is dropped into the charging aperture 1 of vacuum-extruder, spiral leaf 2 in the extruder is with background color pug screw propulsion, by the time after the background color pug of charging aperture 1 entered extruder fully, the lines pug with 1 shovel moisture content 10% dropped into charging aperture 1 again, and the spiral leaf 2 in the extruder is pushed ahead lines pug helical form equally; Then drop into 3 shovel background color pugs again; Intermittently 1 shovel lines pug is dropped in the back, and so circulation makes background color pug and lines pug intersect blanking continuously in 75%: 25% ratio.Because the spiral leaf 2 in the extruder constantly pushes background color pug and lines pug compartment of terrain, advance to extrusion 3, and two kinds of pug helical forms are mixed, form the approximate tree ring pattern of cross sectional pattern at extrusion 3.The sectional area of the mould mud mouth 4 of design is 1/3 of extruder extrusion 3 sectional areas, mix pug and when extrusion 3 enters mould mud mouth 4, produce bottleneck effect, owing to be subjected to stopping of mould mud mouth 4, the pug of central authorities is forced to converge and the speed of extrusion die mud mouth 4 pug around wants fast to the center, thereby makes the pug of central authorities become the spiral taper by original year colyliform.Pug is extruded the rightabout level along pug pug is cut up and down after extruding from mould mud mouth 4, equals the coniform pattern of original pug is cut open, produces the pattern that exactly likes the wood grain peak, and drying, calcining back form ceramic wood grain tile.Present embodiment is a most preferred embodiment, and the textured pattern of the wood grain tile of generation is comparatively harmonious.

Embodiment two, the production technology of present embodiment and embodiment one are identical, just adopt the background color raw material and the lines pug of moisture content 20%, and the ratio of their intersection blankings is, the background color pug: the lines pug is 55%: 45%, and the textured pattern of the wood grain tile that is produced is more.

Embodiment three; The production technology of present embodiment is roughly identical with embodiment one.Just the sectional area of mould mud mouth is 1/2 of an extrusion sectional area, the employing moisture content is 25% background color pug, the lines pug of moisture content 30%, and the blanking ratio is, the background color pug: the lines pug is 90%: 10%, and the textured pattern of the wood grain tile of generation is less.

Certainly, except that two kinds of pugs of the foregoing description intersect the blanking, also can there be the pug of aberration to carry out extrusion molding with after three kinds, four kinds or the more calcining according to product needed.

Claims (1)

1, a kind of forming method of ceramic wood grain tile is characterized in that:

A, is equipped with two kinds or the above index of aridity, becomes the shrinkage factor basically identical, and calcining back color has the raw material of contrast, in make background color raw material account for 95%-55%, the raw material of making lines accounts for 5%-45%, moisture content is 10%-30%;

B, according to the size of required color contrast in proportion with the extruder of above-mentioned raw materials input band spiral leaf: drop into the raw material of making background color earlier, after treating to enter extruder fully, drop into the raw material of making lines again, then drop into the raw material of making background color again, drop into the raw material of making lines intermittently again, so circulation intersects blanking continuously;

The spiral leaf of c, extruder with above-mentioned raw materials to spiral extrusion screw propulsion;

D, through the extrusion molding of mould extrusion, and the extrusion sectional area of mould should be not more than the spiral extrusion and stabs 1/2 of area.