CN109133889A

CN109133889A - A kind of moulding process of spontaneous glaze ceramic bottle

Info

Publication number: CN109133889A
Application number: CN201811129904.9A
Authority: CN
Inventors: 温克仁; 刘唐君
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2019-01-04
Anticipated expiration: 2038-09-27
Also published as: CN109133889B

Abstract

The present invention relates to a kind of moulding process of spontaneous glaze ceramic bottle, specifically comprise the following steps: that ingredient, ingredient secondary operation, injection forming and sintering are formed；The raw material of desert grains of sand substitution part is introduced in ingredient, and ceramic bottle firing energy consumption and production cost are reduced using the technology of once-firing；Injection forming is using a kind of blank forming mold or the grouting mode of two class blank forming molds cooperation funnel, it can guarantee the quality of ceramic bottle green body injection forming, high whiteness, transparency height and the industrial ceramic bottle that can standardize is made in the yield rate for improving ceramic bottle.

Description

A kind of moulding process of spontaneous glaze ceramic bottle

Technical field

The present invention relates to ceramic processing technique fields, and in particular to a kind of moulding process of spontaneous glaze ceramic bottle.

Background technique

The molding of ceramic bottle generally require by ingredient, ingredient processing, injection forming green body and sintering process, wherein Ingredient, injection forming green body and sintering are the significant process of ceramic bottle processing, affect the ceramic bottle quality of final molding.

In all kinds of ceramics, china is a kind of generally acknowledged high-grade porcelain, and Dehua jade porcelain is exactly that one kind in china is significant It represents.About ingredient, a certain amount of kaolin, quartz, length is added mainly using animal bone ash as raw material in the ingredient of Dehua jade porcelain Soft porcelain made of stone etc. has many advantages, such as that porcelain is fine and smooth, whiteness is high, transparency is high, glaze paint is smooth, high mechanical strength；It closes In slip casting, traditional way is that bottle body is poured out first with mold, and there is no the bottleneck for forming perforation, bottleneck needs bottle body at this time It to be come out by manually drilling, polishing, modify, but this will guarantee product quality according to the easily qualification of worker, so And guaranteed efficiency and yield rate, the ceramic bottle made bottleneck very likely cannot occur well in mass production Not of uniform size, the problems such as bottleneck surrounding each section became uneven is even, and then cause ceramic bottle quality bad.It is existing that there are also a kind of Way is the bottleneck penetrated through using internal diameter of the bottleneck sleeve come one-pass molding by mould structure, meanwhile, it controls in bottleneck Diameter, so that the bottle class green body for preparing it, does not need to carry out repaired biscuit again, internal diameter of the bottleneck and capacity can disposably reach design and want It asks.Number of patent application is a kind of forming method of ceramic wine bottle disclosed in the Chinese patent of CN201110392047.3, but this is specially First is suffered from the drawback that in benefit, is also positioned by set tube plug mould between internal diameter sleeve and mold bottleneck, and is not suitable for bottle The lesser bottle of mouth；The second, body mold is integrated, and later period demoulding has difficulties, and is easy molding blank when demoulding Damage；Third, the program cannot with automation mortar injection forming equipment be well matched with, can not while guaranteeing product quality, It realizes and produces in enormous quantities；About sintering, existing china firing generallys use the twice firing mode of biscuiting and glaze firing, i.e. unpainted clay idol Enter kiln by biscuiting, carries out surface glazing (previously prepared glaze is covered on porcelain body surface) in the porcelain body of kiln discharge, then Enter kiln again to be fired by glaze.Authorization Notice No. is that the Chinese invention patent of CN101696124B discloses a kind of reinforcing glaze bone china Firing process polish smooth, reglaze after 780 ~ 800 DEG C of biscuitings after semifinished product forming, then opening's edge and bottom edge Glaze removes；Firing for the first time is using reduction flame once-firing, 1330 ~ 1350 DEG C of firing temperature；After baking cooling, porcelain point is selected Grade, patch in-glaze decoration flower, waits marble papers to do later upper edge glaze again, then passes through 1270 ~ 1280 DEG C of the secondary burning of weakly reducing atmosphere At that is, second mouthful of glaze carries out the firing of in-glaze decoration while firing.After its ceramic product needs to be burnt into for the first time, glazing, then Twice firing is carried out, processing step is more；And it cannot be guaranteed that adequately inside and outside glazing, is easy to cause finished product seamed during glazing Gap reduces cost rate.Therefore, the process energy consumption of twice firing is larger, does not meet energy-saving developing direction, and sintering procedure Time-consuming and laborious, body-glaze intermediate layer will appear the situation of undergrowth.

Currently, the demand to ceramic new product of continuous development and market due to ceramic science technology increasingly increases, compel Ceramics Enterprises are made to continue to develop new product, simple has improved quality and efficiency by increasing human cost and working time Through mechanization and intelligentized era development cannot be adapted to, market is more adapted to using adaptable normalized production technique Demand.

Summary of the invention

In view of above-mentioned deficiencies of the prior art, the present invention is intended to provide a kind of moulding process of spontaneous glaze ceramic bottle, is making pottery Original ceramic material composition of grains of sand substitution part in desert is introduced into porcelain pug, and using the technology of once-firing, simultaneously Slip casting is carried out using the cooperation of blank forming mold and slip casting funnel, guarantees the quality of ceramic bottle green body injection forming, improves High whiteness, transparency height and the industrial ceramic bottle that can standardize is made in the yield rate of ceramic bottle.

A kind of moulding process of spontaneous glaze ceramic bottle, specifically comprises the following steps:

S1, ingredient: by weight percentage by 25% ~ 40% desert grains of sand, 12% ~ 19% galapectite, 10% ~ 16% feldspar, 2% ~ 9% hydroxyl Calcium phosphate, 2% ~ 6% nanoscale spodumene, 1% ~ 4% talcum, 3% ~ 5% nanoscale zircon sand, 3% ~ 6% nepheline syenite, 3% ~ 5% silicon Bechilite and 3% ~ 5% wollastonite mix after ball milling and sieving processing respectively；

S2, ingredient secondary operation: by mixed pug successively by except iron, filters pressing, first time pugging and second of pugging into Row secondary operation；

S3, injection forming: automatic grouting machine is utilized, and passes through slip casting funnel and a kind of blank forming mold or two class blank formings Pug after secondary operation is injected into a kind of blank forming mold or two class blank forming molds by the cooperation of mold, to Pug solidifies to form green body thin-walled after, pour out extra pug in bottle；

S4, sintering sizing: by molding ceramic body, the spontaneous glaze of once-firing is ceramic in 1080 ~ 1160 DEG C of oxidizing atmosphere Bottle.

Wherein, a kind of blank forming mold includes the backform for successively engaging setting from top to bottom, middle mould and bed die；Top Mould, middle mould and bed die are enclosed internal cavities；Middle mould includes the first side form and the second side form of two sides engaging splicing；First side It is equipped with and the required consistent first through hole of ceramic bottle mouth outer diameter in the middle part of upper surface after mould and the fitting of the second side form；First through hole with Connects with the internal cavities；First through hole upper end forms the expanding groove that bore increases；It is equipped with and expanding groove in the middle part of backform lower end surface The lug boss matched；Equipped with the second through-hole being connected to up and down and with first through hole in the middle part of lug boss；One round funnel is set It sets in backform upper end comprising on hemispheric first under basin and first be vertically arranged being connected to basin lower part on first Pipe；The bottom end of first down tube sequentially passes through concordant with the bottom end of first through hole after the second through-hole, first through hole；First lower pipe outer wall The first bottleneck forming cavity is formed between first through hole；Backform upper surface is equipped with the arc groove for accommodating basin lower end surface on first.

Wherein, splicing is realized by the first clamping structure between first side form and the second side form side wall；First side form It is realized and is spliced by the second clamping structure and bed die upper end with the second side form lower end；The lower end surface of backform and the upper surface of middle mould it Between by third clamping structure realize splicing.

Wherein, the first land area of first side form has the first side form chamber, and the second land area of the second side form has Second side die cavity；First clamping structure includes the convex block of several the first side form chamber surroundings being set on the first land area and sets The holding tank that several and convex block being placed on the second land area matches；The convex block is the tooth form of evagination；Convex block and holding tank It cooperates and then realizes that the clamping between the first side form and the first side form is closely sealed.

Wherein, the two classes blank forming mold is firing ceramic bottle mold of the bottleneck bore less than 1.5 ~ 2cm, including the One half module and the second half module；The left land area of first half module has several the first half die cavitys being parallel to each other in the horizontal direction, the The right land area of two half modules has several the second half die cavitys corresponding with the first half die cavitys；First half module and the second half module fasten Corresponding the first half die cavity and the second half die cavitys form several main mould chambers afterwards；First half module and the second half module upper end are equipped with several With corresponding main mould chamber be connected to and with the required consistent third through-hole of ceramic bottle mouth outer diameter；One accepts funnel setting the first half Above mould or the second half module comprising basin and what is be connected to basin bottom part on second several be vertically arranged the on the second of strip Two down tubes；Several second down tubes are concordant with third through-hole lower end after corresponding third through-hole；Second lower pipe outer wall and the The gap of three through-holes forms the second bottleneck forming cavity.

Wherein, first half module and the second half module are realized by the 4th clamping structure splices.

Wherein, the 4th clamping structure includes several clamping blocks for being set to the first half die cavity peripheries and is set to The engaging slot that 2 half die cavity peripheries and clamping block match.

Wherein, in the casting process of the step S3, the time of pug dehydration solidification is 3 ~ 4h, assists drying temperature It is 35 ~ 45 DEG C.

Wherein, before the injection forming of the step S3 carries out, in a kind of blank forming mold or two class blank forming moulds The inner wall of tool coats one layer of water-absorbent material；The water-absorbent material is made of water-absorbing resin and polyeletrolyte；The polymer electrolyte Matter is one of gelatin, gum arabic or sanlose.

Wherein, in the casting process of the step S3, the time of pug dehydration solidification is 1 ~ 2h, assists drying temperature It is 35 ~ 45 DEG C.

Wherein, the sintering curve that sizing is sintered in the step S4 is as follows:

(1) room temperature ~ 150 DEG C heat up 1 hour to 150 DEG C be fired at a slow speed, and heating rate is 2.5 DEG C/min；

(2) 150 DEG C ~ 1000 DEG C, heating rate is improved, heating rate is 15.0 DEG C/min；

(3) 1000 DEG C ~ 1080 DEG C, reducing heating rate prevents china from cracking, and heating rate is 3.3 DEG C/min；

(4) in 1080 ~ 1160 DEG C of range inside holdings, 1.5 hours promotion ceramic densifyings；

(5) 1160 DEG C ~ 1100 DEG C, High-temperature cooling first stage, rate of temperature fall is 10 DEG C/min；

(6) 1100 DEG C ~ 900 DEG C, High-temperature cooling second stage, rate of temperature fall is 16.5 DEG C/min；

(7) 100 DEG C are naturally cooled to.

The invention has the following beneficial effects:

1, slip casting is carried out using funnel cooperation blank forming mold in the present invention, so that each portion of bottleneck bore of the ceramic bottle formed Divide and keep thickness, size is consistent, while guaranteeing ceramic bottle quality and yield rate, realizes and produces in enormous quantities, while is of the invention In blank forming mold demoulding is convenient after use, easy damaged green body, is not effectively ensured the yield rate of ceramic bottle green body.

2, for a kind of blank forming mold by the way that round funnel is arranged, structure is simple and preferably infuses in automation in the present invention Pulp grinder cooperates, and the arc groove matched with basin on the first of round funnel is provided on backform, even if so that round funnel turns It is dynamic, it can also guarantee that the position of the first down tube does not shift, not influence the first down tube and interior intracavitary positional relationship, under first Same spacing is remained between the outer wall of pipe and the inner wall of first through hole, the thickness of the first bottleneck forming cavity remains one It causes, the pug of injection can be full of in the first bottleneck forming cavity, and then guarantee concretionary bottleneck each section consistency of thickness. Meanwhile being cooperated in the middle part of backform lower end by lug boss and expanding groove, it can guarantee the snap effect at middle part.

3, two class blank forming molds are suitable for compact ceramic bottle of the ceramic bottle mouth bore less than 1.5-2cm in the present invention Batch production when producing small ceramic bottle, needs to hold after slip casting is formed by artificial fenestration and polishing in traditional technique Bottleneck is easily caused to rupture, yield rate and production efficiency are low, using the moulding process in the present invention, utilize undertaking funnel and two class bases Cooperation between forming die can facilitate the rapidly slip casting in mold, be formed simultaneously bottleneck and bottleneck bore each section is thick Degree is consistent, at the same time, guarantees to be not easily broken in the lesser situation of bottleneck bore of small ceramic bottle, improve small ceramic bottle production at Product rate and production efficiency.

4, clay, quartz and the feldspar being introduced into bone china paste in the present invention in grains of sand substitution part Dehua jade porcelain billet material Equal raw materials, the wherein use of the alternative clay mineral of the grains of sand；The grains of sand contain the light mine such as 90% or more quartz, feldspar and calcite Object, can be with SiO in ceramic material₂、CaO、Al₂O₃、Na₂O、K₂The ingredients such as O are substituted, wherein the clay raw material of Dehua jade porcelain Mostly from Longyan kaolin, using the grains of sand instead of whole quartz mines, kaolin ore and hydroxyapatite are reduced Use, save the cost of winning of mineral resources, be greatly reduced mineral resources utilization, reduce the exploitations of mineral resources with Waste, reduces production cost.

5, the present invention, which coats one layer in the inner surface of a kind of blank forming mold and two class blank forming molds, has water suction The polymerization water-absorbent material of performance, water-absorbent material with higher water absorption energy water-absorbing resin and polyeletrolyte by forming；Water suction tree Rouge has a large amount of hydrophilic group, can expand to form hydrogel progress water lock after water suction, be difficult to isolate moisture pressurization； Polyeletrolyte is a kind of diluent, can guarantee that the low pug of water content keeps preferable mobility on water-absorbent material surface Energy；Water-absorbent material can preferably help gypsum mold to realize the moisture in active absorption pug, while improve gypsum mold Water absorbing properties and injection index, the pug for helping resistance to infiltration property poor are dehydrated, and are shortened the dehydration and drying time, are improved work Efficiency.

Detailed description of the invention

Fig. 1 is the flow diagram of ceramic bottle moulding process of the present invention；

Fig. 2 is the appearance diagram of a kind of blank forming mold in the present invention；

Fig. 3 is a kind of blank forming mold entirety fractionation structural representation in the present invention；

Fig. 4 is cross-sectional view of the Fig. 2 along line A-A；

Fig. 5 is that Fig. 3 takes out the cross-sectional view after round funnel；

Fig. 6 is that Fig. 3 takes out round funnel and removes the schematic diagram of backform；

Fig. 7 is the appearance diagram of two class blank forming molds in the present invention；

Fig. 8 is two class blank forming mold entirety fractionation structural representations in the present invention；

Fig. 9 is cross-sectional view of the Fig. 7 along line B-B；

Figure 10 is that Fig. 8 takes out the cross-sectional view after accepting funnel；

Figure 11 is the sintering curve figure of present invention firing sizing.

Appended drawing reference indicates in figure are as follows:

1, round funnel；11, basin on first；12, the first down tube；2, backform；21, arc groove；3, middle mould；30, third is clamped Mechanism；31, the first side form；311, the first land area；312, the first side form chamber；32, the second side form；321, the second land area； 322, second side die cavity；4, bed die；5, the first clamping structure；51, convex block；52, holding tank；6, the second clamping structure；7, inner cavity； 8, first through hole；81, expanding groove；82, lug boss；83, the second through-hole；9, the first bottleneck forming cavity；100, funnel is accepted； 101, basin on second；102, the second down tube；200, the 4th clamping structure；201, clamping block；202, engaging slot；300, the first half Mould；301, left land area；302, the first half die cavitys；400, the second half module；401, right land area；402, the second half die cavitys；500, Main mould chamber；600, third through-hole；700, the second bottleneck forming cavity.

Specific embodiment

The present invention is further illustrated with preferred embodiment with reference to the accompanying drawing.

Embodiment 1

Referring to Fig. 1, a kind of moulding process of spontaneous glaze ceramic bottle specifically comprises the following steps:

S1, ingredient: by weight percentage by the 40% desert grains of sand；12% galapectite, 10% feldspar, 8% calcium hydroxy phosphate, 6% nanoscale Spodumene, 4% talcum, 4% nanoscale zircon sand, 6% nepheline syenite, 5% datolite and 5% wollastonite 5% pass through ball milling respectively It is mixed with after sieving processing；Wherein expect: ball: uniformly mixed pug is made in water 1:1.5:0.5；

S3, injection forming: automatic grouting machine is utilized, and passes through slip casting funnel and a kind of blank forming mold or two class blank formings Pug after secondary operation is injected into a kind of blank forming mold or two class blank forming molds by the cooperation of mold, and one Secondary ceramic bottle green body of the molding with perforation bottleneck, the internal diameter of bottleneck is limited by the diameter of slip casting funnel at this time, bottleneck each section Thickness is limited by the gap thickness that bottleneck portion on slip casting funnel and a kind of blank forming mold or two class blank forming molds is formed It is fixed；The pug injected in a kind of blank forming mold or two class blank forming molds is adhered in mold in which will disperse, plaster mold Performance with water suction can be absorbed the water in the pug of injection and carry out generation solidification, forms base layer identical with mold shape, And the part of urgent patch mould inner wall starts progressive additive with the extension of time, and when reaching certain thickness, gypsum mold Reach water suction saturation, can not just continue to absorb the water in pug, therefore a part can be close to mould inner wall solidification shape in pug At one layer of green body thin-walled, a part can keep flowing, and will finally be poured out inside green body for the extra pug of solidification by bottleneck again；

S4, sintering sizing: by china pug in 1080 ~ 1160 DEG C of oxidizing atmosphere the spontaneous glaze ceramic bottle of once-firing.

Embodiment 2

S1, ingredient: by weight percentage by the 38% desert grains of sand, 16% galapectite, 14% feldspar, 9% calcium hydroxy phosphate, 6% nanoscale Spodumene, 4% talcum, 2% nanoscale zircon sand, 5% nepheline syenite, 3% datolite and 3% wollastonite pass through respectively ball milling and It is mixed after sieving processing, wherein material: ball: uniformly mixed pug is made in water 1:1.5:0.5；

Embodiment 3

S1, ingredient: by weight percentage by the 32% desert grains of sand, 19% galapectite, 16% feldspar, 5% calcium hydroxy phosphate, 6% nanoscale Spodumene, 3% talcum, 4% nanoscale zircon sand, 5% nepheline syenite, 5% datolite and 5% wollastonite pass through respectively ball milling and It is mixed after sieving processing, wherein material: ball: uniformly mixed pug is made in water 1:1.5:0.5；

S3, injection forming: automatic grouting machine is utilized, and passes through slip casting funnel and a kind of blank forming mold or two class blank formings Pug after secondary operation is injected into class blank forming mold or two class blank forming molds by the cooperation of mold, to mud After material solidification forms green body thin-walled, extra pug in bottle is poured out；

It is a kind of blank forming mold in step S3 injection forming described in embodiment 1-3 referring to Fig. 2 to Fig. 6；Described one Class blank forming includes the backform 2, middle mould 3 and bed die 4 for successively engaging setting from top to bottom；Middle mould 3 includes two sides engaging splicing The first side form 31 and the second side form 32；Backform 2, middle mould 3 and bed die 4 are internal after enclosing to form inner cavity 7；First side form 31 and It is equipped with and the consistent first through hole 8 of ceramic bottle mouth outer diameter in the middle part of upper surface after the fitting of two side forms 32；First through hole 8 and inner cavity 7 connect It is logical；8 upper end of first through hole forms the expanding groove 81 that bore increases；It is equipped in the middle part of 2 lower end surface of backform and matches with expanding groove 81 The lug boss 82 of conjunction；Equipped with the second through-hole 83 being connected to up and down and with first through hole 8 in the middle part of lug boss 82；One round funnel 1 is arranged in 2 upper end of backform comprising on hemispheric first under basin 11 and vertical first being connected to 11 lower part of basin on first Pipe 12, the bottom end of the first down tube 12 sequentially pass through concordant with the bottom end of first through hole 8 after the second through-hole 83, first through hole 8；First The first bottleneck forming cavity 9 is formed between 12 outer wall of down tube and first through hole 8, the pug of injection, which can be full of, fills up the molding of the first bottleneck Chamber 9 forms the bottle mouth wall of consistency of thickness after pug solidification；2 upper surface of backform, which is equipped with, accommodates 11 lower end surface of basin on first Arc groove 21, the cooperation of the first lower basin 11 of arc groove 21 and round funnel 1, even if so that round funnel occurs to turn It is dynamic, it can also guarantee that the position of the first down tube 12 does not shift, not influence the positional relationship of the first down tube 12 and inner cavity 7, the Same spacing is remained between the outer wall of one down tube 12 and the inner wall of first through hole 8, the thickness of the first bottleneck forming cavity 9 begins It is consistent eventually, and then guarantees concretionary bottleneck each section consistency of thickness.

Referring to fig. 2 to Fig. 6, realized between 32 side wall of first side form 31 and the second side form by the first clamping structure 5 Splicing；First side form 31 and 32 lower end of the second side form, which are realized by the second clamping structure 6 with 4 upper end of bed die, splices；The backform 2 3 upper surface of lower end surface and middle mould between also by third clamping mechanism 30 realize splicing.

Referring to fig. 2 to Fig. 6, the first land area 311 of first side form 31 has the first side form chamber 312, the second side form 32 the second land area 311 has second side die cavity 322；First clamping structure 5 includes several is set on the first land area 322 312 surrounding of the first side form chamber convex block 51 and several appearances matched with convex block 51 for being set on the second land area 321 Receive slot 52；The convex block is the tooth form of evagination；Convex block 51 and holding tank 52 cooperate and then realize the first side form 31 and first Clamping between side form 32 is closely sealed.

A kind of blank forming mold is suitable for being used cooperatively with existing automatic mortar injection forming equipment, to reach big batch Metaplasia produces.A kind of automatic mortar injection forming equipment for ceramic is disclosed referring to the Chinese patent of Patent No. CN201020175740.6, Including hot gas supply system, vibrational system, helper and safety guide rail, main machine frame and transmission system, the rear end of main machine frame Main motor is equipped at left end, the inside of main machine frame is equipped with transmission system, and transmission system includes being arranged on main machine frame Operation guide rail, driving shaft and driven shaft, driving shaft connect by shaft coupling with main motor, and the driving wheel of both ends of main drive shaft is distinguished By driving chain driven wheel connection corresponding with driven shaft both ends, several moulds have been evenly spaced between two driving chains Has bracket, if the underface of the die holder is evenly distributed with close to the bottom of main machine frame and to connect with hot gas supply system Xeothermic gas supply line outlet；Main machine frame is internally located at left side equipped with turnover mechanism, and main machine frame is internally located at Right side is equipped with the structure of falling pulp grinder by positon of near bottom, and the top of main machine frame is equipped with grouting system at left end, grouting system Underface, which is located at the lower end of the operation guide rail, is equipped with guideway up-and-down mechanism, and the bottom of guideway up-and-down mechanism is equipped with vibration system System.A kind of blank forming mold in the present invention is fixed on die holder, round funnel 1 is in the bore thickness for guaranteeing bottleneck While consistent, injection slurry can be preferably accepted, and demoulding is convenient.

It is two class blank forming molds in step S3 injection forming described in embodiment 1-3 referring to Fig. 7 to Figure 10, including First half module 300 and the second half module 400；The left land area 301 of first half module 300 has several to be parallel to each other in the horizontal direction The first half die cavitys 302, the right land area 401 of the second half module 400 have several second half modules corresponding with the first half die cavitys 302 Chamber 402；First half module 300 and the second half module 400 corresponding the first half die cavity 302 and the second half formation of die cavity 402 after fastening Several main mould chambers 500；First half module 300 and 400 upper end of the second half module be equipped with it is several with the connection of corresponding main mould chamber 500 and with ceramics The consistent third through-hole 600 of bottleneck outer diameter；One, which accepts funnel 100, is arranged above the first half module 300 or the second half module 400, Including strip second on basin 101 and several the second down tubes 102 being vertically arranged being connected to 101 bottom of basin on second；If The length direction of dry second basin 101 along second of down tube 102 is fixed on 101 lower end of basin on second, several second down tubes at equal intervals 102 is concordant with 600 lower end of third through-hole after corresponding third through-hole 600；Second down tube, 102 outer wall and third through-hole 600 gap forms the second bottleneck forming cavity 700.

Referring to Fig. 7 to Figure 10, first half module 300 and the second half module 400 are realized by the 4th clamping structure 200 and are spelled It connects；4th clamping structure 200 includes several clamping blocks 201 for being set to the first half die cavitys, 302 periphery and is set to the The engaging slot 202 that 2 half die cavity, 402 periphery and clamping block 201 match.

The mass production of ceramic bottle of the two class blank forming molds especially suitable for bottleneck bore less than 1.5-2cm, energy Enough guarantee to be not easily broken in the lesser situation of bottleneck bore of small ceramic bottle, and bore each section thickness is consistent, improve small The yield rate and production efficiency of ceramic bottle production, and demoulding is convenient.

Wherein, it fires according to any proportion of embodiment 1-3 into ceramic bottle and belongs to the small hole sealing structure of porosity, resistance to infiltration Preferably, therefore in the present invention strainability (permeability) of ceramic material is less than general ceramic material, and simple relies on gypsum Moisture efficiency of the mold under the effect of the pressure in passive adsorption pug is lower, and the dehydration of pug solidifies to form one layer of green body thin-walled Time be 3 ~ 4h, auxiliary drying temperature be 35 ~ 45 DEG C；The present invention passes through in a kind of blank forming mold or two class blank formings The inner wall coating of mold has the water-absorbent material of high-hydroscopicity energy；The water-absorbent material is by water-absorbing resin and polyeletrolyte group At；The polyeletrolyte is one of gelatin, gum arabic or sanlose；The water-absorbent material can The moisture of active absorbed in ceramic material, the time that the dehydration solidification of pug forms one layer of green body thin-walled is 1 ~ 2h, and auxiliary is dry Dry temperature is 35 ~ 45 DEG C, shortens the dewatering time of ceramic material, improves the efficiency of injection forming.

Wherein, primary in 1080 ~ 1160 DEG C of oxidizing atmosphere according to ceramic material made of any proportion of embodiment 1-3 Low fire ceramic finished product, sintering curve are as shown in figure 11:

(1) room temperature ~ 150 DEG C are heated up at a slow speed about 1 hour to 150 DEG C and are fired, and heating rate is 2.5 DEG C/min；(room temperature is 20 ~ 25 DEG C)；

(7) 100 DEG C are naturally cooled to.

The temperature control principle of the sintering curve: that there is also sintering temperatures is too high for once-firing curve in embodiment 1-3 (1200 ~ 1250 DEG C), nanoscale zircon sand heating rate during 1100 ~ 1250 DEG C is too fast, and in order to prevent iron cold But it is oxidized again during, being quickly cooled down at 1250 ~ 1100 DEG C may cause nanoscale zircon sand since cooling rate is too fast, Nanoscale zircon sand crystal phase mutation increases ceramics cracking a possibility that, and then in pug nanoscale zircon sand toughening function without The problems such as method all plays；To solve the above-mentioned problems, nepheline syenite is added, can increase with datolite, talcum cooperation Add glaze paint glossiness and reduce firing temperature, can be burnt at 1000 DEG C or so；Wollastonite is added and talcum cooperation equally may be used To reduce the temperature of once-firing to 1080 DEG C or so and mechanical strength with higher；Datolite is added can be with nanoscale Zircon sand cooperation improves mechanical strength, reduces thermal expansion coefficient and then improves ceramic heat resistant；By sintering curve as can be seen that It slowly heats up and the temperature range of cooling significantly reduces, time and energy consumption, the especially time in high-temperature region is greatly saved.It adopts It on the one hand can reduce ceramic thermal expansion coefficient with the ceramic material proportion of embodiment 1-3, prevent nanoscale zircon sand crystal phase prominent It cracks caused by change, on the other hand reduces the temperature range of firing temperature and the variation of nanoscale zircon sand crystal phase, even if reducing Certain rate of temperature fall can drop to 1100 DEG C hereinafter, Fe therefore can be prevented in cooling procedure again since the time is very short It is oxidized.

The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included in protection scope of the present invention.

Claims

1. a kind of moulding process of spontaneous glaze ceramic bottle, it is characterised in that: specifically comprise the following steps:

S3, injection forming: automatic grouting machine is utilized, and passes through slip casting funnel and a kind of blank forming mold or two class blank formings Pug after secondary operation is injected into a kind of blank forming mold or two class blank forming molds by the cooperation of mold, and one It is secondary to form the ceramic bottle for having bottleneck；Solidification is dehydrated in a kind of blank forming mold or two class blank forming molds to pug simultaneously After being close to mould inner wall one layer of green body thin-walled of formation, not solidified extra pug inside green body is poured out by bottleneck；

2. the moulding process of spontaneous glaze ceramic bottle according to claim 1, it is characterised in that: one kind blank forming mould Tool includes the backform (2), middle mould (3) and bed die (4) for successively engaging setting from top to bottom；Backform (2), middle mould (3) and bed die (4) It is enclosed internal cavities (7)；Middle mould (3) includes the first side form (31) and the second side form (32) of two sides engaging splicing；First It is equipped with and the required consistent first through hole of ceramic bottle mouth outer diameter in the middle part of upper surface after side form (31) and the second side form (32) fitting (8)；First through hole (8) is connected to internal cavities (7)；First through hole (8) upper end forms the expanding groove (81) that bore increases；Top The lug boss (82) matched with expanding groove (81) is equipped in the middle part of mould (2) lower end surface；It is equipped in the middle part of lug boss (82) and passes through up and down The second through-hole (83) that is logical and being connected to first through hole (8)；One round funnel (1) is arranged in backform (2) upper end comprising hemisphere Basin (11) and the first down tube (12) being vertically arranged being connected to basin on first (11) lower part on the first of shape；First down tube (12) it is concordant with the bottom end of first through hole (8) afterwards that bottom end sequentially passes through the second through-hole (83), first through hole (8)；First down tube (12) the first bottleneck forming cavity (9) is formed between outer wall and first through hole (8)；Backform (2) upper surface, which is equipped with, accommodates basin on first (11) arc groove (21) of lower end surface.

3. the moulding process of spontaneous glaze ceramic bottle according to claim 2, it is characterised in that: first side form (31) and Splicing is realized by the first clamping structure (5) between second side form (32) side wall；Under first side form (31) and the second side form (32) End is realized by the second clamping structure (6) and bed die (4) upper end splices；The lower end surface of backform (2) and the upper surface of middle mould (3) it Between by third clamping structure (30) realize splicing.

4. the moulding process of spontaneous glaze ceramic bottle according to claim 3, it is characterised in that: the of first side form (31) One land area (311) has the first side form chamber (312), and the second land area (311) of the second side form (32) has second side die cavity (322)；First clamping structure (5) includes the convex of several first side form chamber (312) surroundings being set on the first land area (322) Block (51) and several holding tanks (52) matched with convex block (51) being set on the second land area (321)；The convex block For the tooth form of evagination；Convex block (51) and holding tank (52) cooperate so that realize the first side form (31) and the first side form (32) it Between clamping it is closely sealed.

5. the moulding process of spontaneous glaze ceramic bottle according to claim 1, it is characterised in that: the two classes blank forming mould Tool is less than the ceramic bottle mold of 1.5-2cm, including the first half module (300) and the second half module (400) for firing bottleneck bore；First The left land area (301) of half module (300) has several the first half die cavitys (302) being parallel to each other in the horizontal direction, the second half module (400) right land area (401) has several the second half die cavitys (402) corresponding with the first half die cavity (302)；First half module (300) and the second half module (400) fasten after corresponding the first half die cavity (302) and the second half several masters of die cavity (402) formation Die cavity (500)；First half module (300) and the second half module (400) upper end be equipped with it is several with the connection of corresponding main mould chamber (500) and with The required consistent third through-hole of ceramic bottle mouth outer diameter (600)；One accepts funnel (100) setting in the first half module (300) or the Above two half modules (400) comprising basin (101) and be connected to basin on second (101) bottom several on the second of strip It is vertically arranged the second down tube (102)；Several second down tubes (102) pass through corresponding third through-hole (600) afterwards and third through-hole (600) lower end is concordant；The gap of second down tube (102) outer wall and third through-hole (600) forms the second bottleneck forming cavity (700).

6. the moulding process of spontaneous glaze ceramic bottle according to claim 5, it is characterised in that: first half module (300) Realize splicing by the 4th clamping structure (200) with the second half module (400): the 4th clamping structure (200) includes several sets It is placed in the clamping block (201) of the first half die cavity (302) peripheries and is set to the second half die cavity (402) periphery and clamping blocks (201) engaging slot (202) matched.

7. according to the moulding process of any spontaneous glaze ceramic bottle of claim 4 and 6, it is characterised in that: the step S3 Casting process in, pug dehydration solidification time be 3 ~ 4h, auxiliary drying temperature be 35 ~ 45 DEG C.

8. according to the moulding process of any spontaneous glaze ceramic bottle of claim 4 and 6, it is characterised in that: in the step Before the injection forming of S3 carries out, one layer of water-absorption material is coated in the inner wall of a kind of blank forming mold or two class blank forming molds Material；The water-absorbent material is made of water-absorbing resin and polyeletrolyte；The polyeletrolyte is gelatin, gum arabic or carboxylic One of methylcellulose sodium salt.

9. the moulding process of spontaneous glaze ceramic bottle according to claim 8, it is characterised in that: the slip casting of the step S3 at During type, the time of pug dehydration solidification is 1 ~ 2h, and auxiliary drying temperature is 35 ~ 45 DEG C.

10. the moulding process of spontaneous glaze ceramic bottle according to claim 1, it is characterised in that: be sintered in the step S5 The sintering curve of sizing is as follows:

(7) 100 DEG C are naturally cooled to.