CN101786830A - Preparation method of artificial stone with marble-imitated Sha Anna high-grade variety pattern and artificial stone prepared thereby - Google Patents
Preparation method of artificial stone with marble-imitated Sha Anna high-grade variety pattern and artificial stone prepared thereby Download PDFInfo
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- CN101786830A CN101786830A CN201010001099A CN201010001099A CN101786830A CN 101786830 A CN101786830 A CN 101786830A CN 201010001099 A CN201010001099 A CN 201010001099A CN 201010001099 A CN201010001099 A CN 201010001099A CN 101786830 A CN101786830 A CN 101786830A
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Abstract
The invention discloses a preparation method of an artificial stone with a marble-imitated Sha Anna high-grade variety pattern, which comprises the following steps of: (1) preparing artificial stone pug in a stirring way; (2) vacuumizing to be more than -0.077MPa to perform the following steps of: 1. prefabricating and tabletting the artificial stone pug; 2. spraying color paste to the surfaces of the prefabricated and tabletted pug pieces; 3. accumulating and overlapping the cloth of the pug pieces; and 4. pressing in a forming way; and (3) solidifying a pressed forming body under the normal temperature. As the step of prefabricating and tabletting is increased before the step of spraying the color paste, the streak of the pattern on the surface of the marble-imitated Sha Anna high-grade variety artificial stone prepared by the method is thinner and longer, has a certain trend regularity, and avoids the coarse streak and the unordered trend of the product which is correspondingly prepared by existing working procedures without the step of tabletting, thereby more realistically reappearing the delicate grain of the marble Sha Anna high-grade variety and bringing greater upvaluation space to the product.
Description
Technical field
The present invention relates to a kind of finishing material, especially a kind of rostone of parian Sha Anna high-grade variety pattern also relates to the preparation method of this rostone.
Background technology
Rostone normally utilizes the lithotome particle, through containing the resin combination bonding of initiator, promotor, again through vacuumizing a kind of decoration base (piece, plate) material of vibratory compaction moulding.The base of rostone (piece, plate) material is finally made various dalles, profiled material after processing such as cutting, milling, polishing.Rostone is to develop a kind of faster new variety in the stone material in recent years, have both marmorean natural texture and firm quality, the bright and clean exquisiteness of pottery, the workability of timber, can be widely used in ground, the metope of all kinds of buildingss, the decoration of table top, development prospect widely be arranged at building material industry.
Rostone preparation technology method is divided into plate method and waste material method two big classes, is to divide according to the mould that the compression moulding stage is adopted in the vacuum vibration: when mold cavity is flatly directly to be pressed into lamellar raw sheet when tabular, this kind technology is referred to as plate method technology; When mold cavity is all very big bulk three-dimensional shape of length and width height, the three-dimensional intermediates of the bulk that is pressed into are called waste material traditionally, its volume is generally at 3～3.5 cubic metres, and through just obtaining lamellar sheet material after gang saw and so on the cut mechanically, this kind technology is referred to as waste material method technology again.In these two kinds of processing methodes, all can use so-called pug, it is the general designation for whole admixtion material under the state of mixing.
Present rostone is similar to lithotome color and texture, but shortcoming is the color dullness, and decorative pattern is simple.The basic production processing method of present stage is, it is even that unsaturated polyester resin, auxiliary curing agent, natural marble metaling, pigment and filler (that is trickle powdery marble) etc. are put into stirrer for mixing, then under vacuum state discharging to mould, then carry out vacuum vibration die mould, solidify again, cut, polish, promptly obtain artificial stone plate's face, its pattern characteristics is limited to building stones particle maculation shape basically and distributes similar natural granite.Also replacement part natural stone metalings such as useable glass particle, shell are produced artificial slabstone, but the space of a whole page that obtains remains mottled type., can not solve the inherent defect of whole decorative pattern dullness all the time though but the people increases some styles for mixing colours.
The natural marble of lumpy pattern is welcome by everybody deeply, and Sha Anna is a wherein typical high-grade variety, has the meticulous and sharply marginated characteristics of texture of pattern.In the existing rostone product, had and copied the rostone technology of making Sha Anna space of a whole page lumpy pattern, its core technology is how to produce the coloured texture that is distributed in the agglomerate periphery.As:
1, in the Chinese invention patent " marmorean production technique of coloured grain artificial and device " (application number 200610034027.8, publication number CN 1864969A), the just conventional mill base spraying technology that has adopted has been described on a kind of external introduction rostone production line, the admixtion that also is about to the rostone base-material stirs and becomes big or small inhomogenous bulk or block, before base-material blowing injection molding, in whipping process, starch then toward this base-material material surface color spray with this kind state;
2, in the Chinese invention patent " production method of artificial stone colorful products and products thereof " (application number 200710108641.9, publication number CN 101053971A), another mill base whitewashing mode has been described, for the rostone slurry that stirs is sprayed mill base in following blanking to the mould side of vacuum state.
Above-mentioned two pieces of patents compare, the latter to the former improvement effect is, more thoughtful and the exquisiteness of the gunite effect of agglomerate outer surface a bit, avoided while stirring that inevitable module of boundary gelatinization and the mill base that produces stirs the into shortcoming of agglomerate inside in the gunnite method, thus the artistic effect of the mill base texture around agglomerate upgrading in the product: more remarkable, distinct.
Above-mentioned these two kinds of method this paper are called traditional gunnite method.But, the marmorean classical pattern feature of natural Sha Anna is, presents the meticulous and sharpness of border of netted trend grain, and presents netted trend texture and also in fact present certain rule of moving towards.So, compare with natural Sha Anna marble, still old two significant disadvantages of above-mentioned these two kinds of mortar jetting methods: the first, bear contained agglomerate in the rostone pug (or claim base-material) of whitewashing in the technology, only just formed by stirring action, its quality is loose, the edge is very thick makes the result, whitewashing back mill base can scatter to a certain extent toward the depths infiltration, causes the mill base boundary line that correspondence forms on the product plate face always relatively smudgy; It two is, the mode that agglomerate is piled up each other is at all uncontrolled, then be distributed in the agglomerate periphery painted to present netted trend texture be fully unordered.
Summary of the invention
At above-mentioned deficiency, the invention provides a kind of preparation method of rostone of parian Sha Anna high-grade variety pattern, the artificial stone plate's face online strain line that is obtained looks longer, meticulousr, and present and necessarily move towards rule, no longer as strain line was coarse originally, trend is too unordered, the exquisite textured pattern that reproduces marble Sha Anna high-grade variety more true to nature.
Technical scheme provided by the invention is described below: a kind of preparation method of rostone of parian Sha Anna high-grade variety pattern may further comprise the steps:
(1), stirs preparation rostone pug;
(2), be evacuated to-carry out more than the 0.077MPa following operation:
1., to the prefabricated compressing tablet of rostone pug;
2., spray mill base on the pug sheet surface behind the prefabricated compressing tablet;
3., it is overlapping pug sheet cloth to be piled up;
4., carry out the moulding compacting again;
(3), will under normal pressure, solidify through the formed body of moulding compacting.
This preparation method also comprises: the rostone after solidifying is carried out cutting and polishing.
Optionally, in the step (2) spray mill base with the cloth accumulation overlapping between, the pug sheet that increase will be sprayed behind the mill base cuts fragmented step.
Comprise in the prescription of described pug:
Aggregate 30～80 weight %
Filler 13～50 weight %
Resin combination 5～30 weight %.
Described aggregate is one or more in marble, quartzite, granite and the aluminium hydroxide; The order number of its granularity is 4 orders～400 orders.
Described filler is one or more in marble, quartzite, granite and the aluminium hydroxide; The order number of its granularity is greater than 400 orders.
Described resin combination comprises unsaturated polyester resin, initiator and promotor.
Preferably, the curing in the step (3) is at room temperature carried out.
Principle of the present invention:
1, pug has suitable plastic forming ability.The admixtion that aforementioned formula is formed passes through step
(1) homogenizing stirs the pug of preparing, and wherein all can contain other pellet of particle diameter mm level and reach the cm rank to particle diameter very is other agglomerate of dm level, the corresponding processing performance that just has tablet forming in follow-up prefabricated compressing tablet flow process; Exist pellet just to show that this pug has promptly had the agglomerating ability of certain plasticity in whipping process at least, only this moment the pellet type pug need greater pressure, for example can it be pressed into sheet in case of necessity through the two-stage pressurization of two-step approach of two rollers and so on; The pug that contains described agglomerate then can be suppressed into the pug sheet at an easy rate.In technology of the present invention, described its thickness of pug sheet can be in the mm rank up to cm, even thickly more also can accomplish to dm rank technology itself, but the characteristics of pattern will no longer be really true to life natural marble Sha Anna kind when too thick.
2, increased the processing link that the rostone pug is carried out prefabricated compressing tablet among the present invention.Its maximum process characteristic is: one makes the quality densification of pug; Its two, the pug that is pressed into all can surpass before the compacting size of agglomerate in the original pug on length and width; Its three, the pug sheet that is pressed into itself has had the yardstick advantage that extends on the length direction.These process characteristics are most important for the present invention: 1, because the quality densification, in follow-up mill base spraying process neutralization thereafter, accompanying color paste layer will in fact only rest on the presuppression pug sheet surface and can not permeate and be diffused into the pug depths; 2, because length is longer or width is wideer, the yardstick that color paste layer stretches is also just bigger.3, because the unique advantage that possesses on the pug plate shape just can be impelled the texture of following described color paste layer correspondence in " cloth accumulation " link of back narration, on arranging, present the more or less trend of parallel shape laminated striation.
Thereby, follow-up when the pug fragment of spraying mill base is carried out the cloth operation, the pug fragment can be piled up and fold up, and the lip-deep color paste layer of pug fragment just becomes the border texture that has netted trend, and the original depth of pug fragment has just determined this texture distance each other basically, or is called the thick spacious or fine and smooth style of pattern.Because the color paste layer diffusion on surface is suppressed with infiltration, and color paste layer two the bigger advantages of yardstick that on pug fragment surface, stretch, the mill base net-like texture that is in described accumulation body boundary position just seems that meticulousr more continuous wall stretches; And the maximum process characteristic of above-mentioned precompressed film-making thirdly, the pug sheet that promptly is pressed into itself has had and has trended towards forming easily the shape advantage that sheet is piled up, make described mill base interface on spatial orientation, present a kind of directivity selective advantage again, that is described net-like texture has the characteristics of necessarily moving towards trend.
So, owing to set up the presuppression blade technolgy before color spray slurry, the present invention has just solved and has copied the high-grade Sha Anna kind rostone technology midium or long term of natural marble that Three Difficult Issues to be solved are arranged---the texture that presents netted trend is slightly and inadequately clear, texture is disliked short and also had trend too disorderly and unsystematic.
3, the pug behind the color spray slurry enters burden distributing procedure.Here the cloth of saying also is to use the cloth trolley to realize will be in conventional production.This dolly is positioned at compacting tool set top, is carrying above-mentioned tabletting machine and slicing machine, under the speed of control along the length direction to-and-fro movement of compacting tool set, make spray behind the color paste layer the pug sheet fall from this dolly toward compacting tool set; Plasticity is limited in fact and contain the rostone pug sheet of a large amount of aggregates, so in the process of falling, torn by deadweight, and be broken into fragment in length and width two directions, the major influence factors of its size is the plasticity of described pug formula decision, the thickness of tabletting machine parameter decision, for reaching effect to the emulation of natural marble Sha Anna pattern height, described pug fragment linear dimension is preferably 10～40cm scope, of the present invention facts have proved, according to the observation of process in test or the production process and to the experience that accumulates, can return and instruct the operating parameters combination that realizes the pattern that requires, accomplish this requirement controlledly thereby have; Described pug fragment is fallen compacting tool set bottom or when part has accumulated on the pug layer in this compacting tool set, just can be while folding accumulation, be evenly distributed in the middle of the whole compacting tool set, high till the specified altitude up to the charge level heap of pug accumulation horizon.Mill base thin layer on pug fragment surface described in the described this folding banking process has just formed the border texture that presents netted trend, and the original depth of pug sheet has just determined this texture distance each other basically, or is called the thick spacious or fine and smooth style of pattern; On the other hand, needs for the pattern pattern, can also increase a slicing process, be one section one section controlled length with successive or long pug band sanction weak point, thereby can formed final pattern characteristic or the title artistic style that presents reticulate pattern trend texture of artificially meticulousr control.
4, the order number of filler granularity is more than 400 orders; Granularity is that 400 orders are so that thinner powder is called fine powder, the thin more pug plasticity that is beneficial to more of powder particle size increases, but it is also high more to inhale the resin rate accordingly, even although carefully also can use in principle to 1500 purpose fine powders, too high resin demand makes economically the too high and forfeiture product practical value of cost.
The present invention utilizes aggregate size big (the order number of its granularity is 4 orders～400 orders), and the space is big mutually, and the ability of infiltration resin is strong, and particle slightly causes coefficient of interal friction big and be tending towards loose stacking states again simultaneously, and it is tight to be not easy compacting; On the other hand, aggregate intensity height can promote the rostone product strength to improve, and the product compression set after the abundant compacting is little.Add a series of characteristics of the less filler of particle diameter, cohesion is big as the internal friction resistance is little, and the infiltration resin ability is little, and giving the rostone pug has bigger plasticity-; Simultaneously, filler is because specific surface is big thereby suction resin ability is strong.
Therefore, the grating of the aggregate of rostone pug and filler among the present invention (grating is meant the shared ratio of each particle diameter in the raw material that constitutes pug), make resin demand realize saving to the full extent, coefficient of interal friction is moderate, plasticity-is suitable, suppresses compacting in pug sheet and the final vacuum vibration die mould technology easily.
5, preparation method of the present invention carries out under vacuum environment; The meaning of vacuum tightness height shows and influences residual gas porosity in the rostone, adopts high vacuum tightness certainly, and void content can be still less in the final rostone product.The present invention select for use vacuum tightness be generally-more than the 0.077MPa, be preferably-more than the 0.096MPa.
Compared with prior art, the present invention is owing to increased precompressed film-making operation before color spray slurry step, the strain line of pattern is thinner longer on the gained parian Sha Anna high-grade variety artificial stone plate face, certain rule of moving towards is arranged, no longer as no sheeting process institute corresponding product strain line coarse, move towards too unordered, thereby the exquisite texture that reproduces marble Sha Anna high-grade variety more true to nature has brought bigger appreciation space to product.
Description of drawings
Fig. 1 is the artificial stone panel photo of existing imitating natural marble Sha Anna.
Fig. 2 is the artificial stone panel photo of the imitating natural marble Sha Anna of prepared of the present invention.
Embodiment
Understand the present invention better for ease of those skilled in the art,, further set forth the present invention below in conjunction with embodiment:
In the following example, the XG-815 powder is the trade name of Dali building stones, although wherein do not indicate screen size, daily sampling observation data show, to such an extent as to its weight can both pass through 400 mesh sieves more than 95% more than 90%, thereby belong to " filler " alleged among the present invention in fact.
Embodiment 1
Load 9 tons of Dali building stones gross weights in the stirrer, prescription is fine horse finesse Dali building stones 80 orders (commodity order number, Snow Flower White 50wt% down together), XG-815 powder (He Prefecture, Guangxi rising sun photoinitiator chemical company limited, 34.5wt% down together), titanium dioxide 0.38wt%, lotus flower board unsaturated polyester resin 15wt%, initiator 0.1wt% rises in nation, and promotor 0.02wt% rises in nation.
Paste formula: the yellow slurry 5% of Feitian board, Feitian board stock white 95% utilizes the alcohol dilution after stirring, and the Engler viscosimeter reading is controlled at 30s.
Raw material in the stirrer is made uniform pug with 15 rev/mins rotating speed homogenizing stirring after 10 minutes, be evacuated to-more than the 0.077MPa, the blanking student who opens stirrer expects to belt conveyor, utilize belt that pug is delivered in the tabletting machine, after being pressed into sheet, utilize the whitewashing system to sheet pug surface sprinkling mill base, and cloth is to mould.Then send mould to suppressing the chamber, utilize audio oscillation and ram pressures the pug compacting.Remove vacuum for the venting of compacting chamber, the mould seat coach is released the compacting chamber, with the mould that suppresses together with wherein famine material, transfer is positioned over solidifies the 24h demoulding under the room temperature, room temperature environment solidifies after 10 days down, utilizes gang saw to cut into the sheet material of thickness 18mm, and through after the grinding and polishing mechanical polishing, promptly obtain the rostone of the inventive method preparation, present the distinctive elegant texture that is reticulate pattern trend of natural high-grade marble Sha Anna kind on its plate face, see photo shown in Figure 2.
The texture of embodiment 1 resultant rostone product is meticulous, continuous wall stretches, and has certain rule of moving towards, no longer as no sheeting process institute corresponding product strain line coarse, move towards too unordered (texture shown in Fig. 1 currently available products), thereby the exquisite texture that reproduces marble Sha Anna high-grade variety more true to nature approaches in unlimited emulation and to make great progress aspect the high-grade lithotome kind.
What need further specify is for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some simple improvements and modifications, but the present invention to be not limited to these improvements and modifications.Such as but not limited to:
1, in the artificial stone raw materials, can also add the additive of a small amount of special decorative effect according to product needed, as broken two-way mirror particle, shell or shell fragment and so on; Moreover, also can add the colorant of painted usefulness, no matter be that inorganic pigment or organic pigment all can be selected for use.Prepare for the purpose for the natural marble Sha Anna pattern of copying of the present invention, aggregate or filler are marbles actually, perhaps also have at least aly in the middle of the aluminium hydroxide partly or entirely to substitute it, can not be affected with other stone material kind such as quartzite, granite; But in a single day the aggregate or the filler of granite or quartz and so on high rigidity stone material are mixed, and will make the gang saw cutting processing of waste material become especially difficult or even unworkable, also increase the complicacy of the hardness formation of whole system in addition, polish difficulty thereby increase; Thereby, in the waste material method rostone in the existing common processes aggregate or filler substantially only use marble and aluminium hydroxide.
2, to implement the operation of mill base thin layer spraying itself be a kind of existing conventional operation pug surface, different variations be the procedure position and the gunnite method of whitewashing.So characteristics of the present invention are being whitewashed toward the pug sheet surface that is pre-pressed into, spray pressure (pressure) is generally 0.1～0.6MPa.The whitewashing link can the adjusting factor have multiple, for example, the jet velocity of spray gun can be by spraying pressure (pressure) or valve opening so as to regulating, thereby change the thickness of the thickness of described mill base thin film layer and the extremely final corresponding grain that forms, change the quantity and the layout of different colours spray gun when needing, also can be so that the distribution of the color of color paste layer and color becomes complicated or the like from single, so artistic effect that can the described texture of appropriate change, but, all suchlike changes, no matter whether whether mention in the above description, all be within the creative at all conceptual framework that the present invention " whitewashes on the pug sheet that is pre-pressed into ", all still belong among the scope of the present invention.
3, involved mill base among the present invention there is no strict particular requirement, says in principle, so long as be applicable to the resin type rostone, can just be applicable to the present invention from the mill base of spray gun ejection.Described mill base is to form required color with conventional commercially available resin type rostone with the mill base color matching, generally also satisfies Engler viscosimeter reading interval through the composition adjusting and is in 5s～5min, and occasion is 10s～30s mostly; Described composition adjusting measure is for adding conventional commercially available solvent, and for example alcohol, acetone, vinylbenzene etc. are used as thinner, also add the unsaturated polyester resin thickening in case of necessity.From the technical standpoint of this area, any adjustment or change about described mill base composition all still all are within the scope of the present invention.In like manner, the present invention also needs to use spray gun certainly, as long as the ejection of mill base that can the present invention is used, the spray gun of any kind all is applicable to the present invention.
4, obvious, in cloth job step, the movement velocity of cloth trolley also can influence the folding banking process of described pug fragment to a certain extent, and to the fine structure that has influence on final pattern texture on the plate face.It is the simplest in operation that the cloth trolley is done at the uniform velocity to-and-fro movement, this requirement of pug uniform distribution in the easiest realization compacting tool set; However, also still can be by the good program of matching Design, make this to-and-fro movement do non-uniform movement and also can satisfy pug uniform distribution purpose in compacting tool set, for example a simple scheme is, make that the every two-layer volume of cloth operation is one group, the complementation of two-layer thickness each other, that is, the zone that thickness is thin partially because this little vehicle speed is fast to the first layer, just make this vehicle speed slow down during second layer cloth and compensate the first layer thickness in this zone, vice versa, so just makes this two-layer total thickness realize uniformity.
5, vacuum vibrating compacting and subsequently atmospheric pressure environment curing operation, be in the rostone manufacturing processed a routine must be through step.After vacuum vibrating compacting operation, vacuum is removed in the venting of compacting chamber, the compacting tool set that the mould seat coach is carried together with it withdraws from the compacting chamber, with lifting allocation and transportation equipment compacting tool set is sticked together to be maneuvered into together with the artificial Waste stone material in it and solidify the storage location, in the atmospheric environment maintenance, the general curing conservation of not implementing artificial heating, normally curing conservation back form removal after 24 hours under the room temperature is simply left artificial Waste stone material lifting handling concentratedly and was continued under the room temperature curing conservation 10 days.
The artificial vacuum vibrating compacting of making in the flow process made of stones of waste material method, being actually pressure head alternately exerts pressure at the two ends audio frequency of compacting tool set, this can image liken audio frequency seesaw movement mode to, the extrusion process of alternately exerting pressure in this two ends, can make pug present a kind of between this both mold ends head by reciprocating extrusion mobile trend, especially controlling level obviously reduces, the initial stage of densification from the low density state of initial general blanking accumulation is compacted at pug, and this extruding flow effect can show the most significantly relatively.And described this extruding is flowed and the distortion of being followed, and not only can occur on the length direction of compacting tool set, also can occur on the height of this mould, and this situation also can have influence on the fine structure of the final pattern texture of described plate face to a certain extent.
6, cutting and polishing are the steps of the last formation artificial slabstone in the rostone manufacturing processed.Certainly, for the artificial fabrication technique made of stones of famine material method, separating in the plate technology of famine material cutting, the direction difference of sawing processing, just to the famine material cross-wise direction difference of rectangular parallelepiped profile, for example perpendicular cuts or horizontal resection, the pattern texture that is obtained have quite significantly difference, so the direction selection of this step cutting is fixed according to the requirement of product pattern.
Claims (9)
1. the preparation method of the rostone of a parian Sha Anna high-grade variety pattern may further comprise the steps:
(1), stirs preparation rostone pug;
(2), be evacuated to-carry out more than the 0.077MPa following operation:
1., to the prefabricated compressing tablet of rostone pug;
2., spray mill base on the pug sheet surface behind the prefabricated compressing tablet;
3., it is overlapping pug sheet cloth to be piled up;
4., carry out the moulding compacting again;
(3), will under normal pressure, solidify through the formed body of moulding compacting.
2. preparation method according to claim 1 is characterized in that: this preparation method also comprises the rostone after solidifying is carried out cutting and polishing.
3. preparation method according to claim 1 and 2 is characterized in that: in the step (2) spray mill base with the cloth accumulation overlapping between, the pug sheet that increase will be sprayed behind the mill base cuts fragmented step.
4. preparation method according to claim 1 is characterized in that, comprises in the prescription of described pug:
Aggregate 30～80 weight %
Filler 13～50 weight %
Resin combination 5～30 weight %.
5. preparation method according to claim 4 is characterized in that: described aggregate is one or more in marble, quartzite, granite and the aluminium hydroxide; The order number of its granularity is 4 orders～400 orders.
6. preparation method according to claim 4 is characterized in that: described filler is one or more in marble, quartzite, granite and the aluminium hydroxide; The order number of its granularity is greater than 400 orders.
7. preparation method according to claim 5 is characterized in that: described resin combination comprises unsaturated polyester resin, initiator and promotor.
8. preparation method according to claim 1 and 2 is characterized in that: the curing in the step (3) is at room temperature carried out.
9. rostone of obtaining of preparation method according to claim 1 with parian Sha Anna high-grade variety pattern.
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| CN201010001099A CN101786830B (en) | 2010-01-22 | 2010-01-22 | Preparation method of artificial stone with marble-imitated Sha Anna high-grade variety pattern and artificial stone prepared thereby |
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| CN201010001099A CN101786830B (en) | 2010-01-22 | 2010-01-22 | Preparation method of artificial stone with marble-imitated Sha Anna high-grade variety pattern and artificial stone prepared thereby |
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| US5795513A (en) * | 1995-12-28 | 1998-08-18 | Mark Austin | Method for creating patterns in cast materials |
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