CN109592992A - A kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress - Google Patents

Abstract

The present invention relates to a kind of fragmentation type safe ceramics tablewares induced by high expansion glaze stress.Method of the invention is that after being covered each by the glaze layer that two kinds of thickness and the coefficient of expansion differ greatly inside and outside crockery, powerful internal stress is formd inside tableware；When tableware is when by external force destruction, the crack orientation of tableware is caused to form fragmentation under the induction of powerful internal stress, obstruction, the generation of sharp ceramic relic can be prevented, injured caused by human body to mitigate.

Description

A kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress

Technical field

The invention belongs to field of household ceramic, and in particular to a kind of fragmentation type safe ceramics induced by high expansion glaze stress Tableware.

Background technique

Crockery various shapes, moist, color is bright and beautiful and is convenient for cleaning, is most families' purchase tablewares It is preferred.But ceramics are touched intolerant to falling, and are easy breakage, to solve the problems, such as that ceramic relic is easy to hurt sb.'s feelings, the present invention passes through in tableware Outside is formed by powerful internal stress to control crack orientation, and when tableware is when by external force destruction, the crackle of tableware is walked The induction of powerful internal stress, the rapid expansion of prevention crackle, cause tableware very thick by that layer of outside to inside and outside will receive Fish scale-shaped circle crackle controls and forms fragmentation, prevents the generation of sharp ceramic relic, can reduce injury of the potsherd to human body.

Summary of the invention

Aiming at the problem that the purpose of the present invention is being easy to hurt sb.'s feelings after conventional ceramic tableware is damaged, one kind is provided by high expansion glaze Stress induced fragmentation type safe ceramics tableware.By being covered each by two kinds of thickness and expansion inside and outside crockery Glaze that coefficient differs greatly is allowed to form powerful internal stress, prevents the rapid expansion of crackle, and preventing sharp ceramics residual The generation of piece, avoids potsherd from hurting sb.'s feelings.

To achieve the above object, the present invention adopts the following technical scheme:

A kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress, including crockery ontology, the crockery It is covered with thin layer glaze on the inside of ontology, the outer side covering of the crockery ontology has thick-layer glaze；The thin layer glaze is The low bulk glaze of 0.3-0.5mm thickness, the thick-layer glaze be 2-3mm thickness high expansion glaze, the Low Thermal Expantion Glaze with The linear expansion coefficient value of both high expansion glaze differs between 2.5-3.5 × 10-6/ DEG C；The thick-layer glaze is in high expansion It is in fish scale-shaped circle crackle under the action of glaze stress；When the crockery ontology is by external force destruction, fish scale-shaped circle is split Line induced fragmentation is formed, and crack extesion is prevented.

Preferably, the inside of the crockery ontology is smooth bright thin layer glaze.

Preferably, toothpaste can be used to be repaired for the fish scale-shaped circle crackle.

A kind of manufacture craft of the fragmentation type safe ceramics tableware induced by high expansion glaze stress, including following technique step It is rapid:

(1) it selects and carcass is done by the rice bowl of easy fired in 1200 DEG C -1300 DEG C, first sprayed on the inside of the rice bowl green body of biscuiting One layer of 0.3mm-0.5mm thickness, linear expansion coefficient are 4.5-4.7 × 10-6/ DEG C of low bulk fish scale glaze, then the side spray outside bowl body One layer of 2-3mm thickness, the high expansion fish scale glaze that linear expansion coefficient is 7.2-8 × 10-6/ DEG C, through in 1200 DEG C -1300 DEG C after drying The firing of low-temperature oxidation flame；

(2) external crack is filled with toothpaste after its cooling, after drying and consolidating cleaning.

The invention has the following advantages: fragmentation principle is skillfully constructed, it is peculiar that fish scale-shaped circle splits outer glaze, low in cost It is easy to spread, it is especially suitable for children and uses.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1, the fish scale-shaped circle of crockery outer body of the present invention split thick-layer glazed structure schematic diagram.

Specific embodiment

The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.

Shown in referring to Fig.1, a kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress, including crockery sheet Body, the crockery ontology inside are covered with thin layer glaze, and the outer side covering of the crockery ontology has thick-layer glaze, It is covered each by the glaze to differ greatly there are two types of thickness and the coefficient of expansion inside and outside crockery ontology, makes inside tableware Powerful internal stress is formed, which is the low bulk glaze of 0.3-0.5mm thickness, and the thick-layer glaze is 2- The high expansion glaze of 3mm thickness, the Low Thermal Expantion Glaze are differed with the linear expansion coefficient value of both high expansion glaze in 2.5-3.5 × 10-6/ DEG C between；Smooth become clear of the inside glaze of the crockery ontology is readily cleaned, and the crockery sheet is external The thick-layer glaze of side is in fish scale-shaped circle crackle under the action of high expansion glaze stress；Glaze is split to prevent dirt from entering fish scale-shaped circle Crackle, toothpaste can be used to fill up crackle, wait in seam and come into operation after toothpaste drying and consolidating again；

When crockery ontology is when by external force destruction, crack orientation will receive inside and outside powerful internal stress lure It leads, prevent the expanding rapidly, cause crockery ontology to be controlled by the very thick fish scale-shaped circle crackle in that layer of outside and formed of crackle Fragmentation prevents the generation of sharp ceramic relic, injures caused by human body to mitigate.

The present invention has innovatively been covered each by two kinds of thickness in this inside and outside side two sides of crockery and the coefficient of expansion is equal The glaze layer that differs greatly is allowed to the rapid expansion to form powerful internal stress, prevent crackle, and causing tableware by outside, that layer is very thick The induction of fish scale-shaped circle crackle and form fragmentation, prevent the generation of sharp ceramic relic, the final difficulty for solving potsherd and hurting sb.'s feelings Topic.

The present invention is further described With reference to embodiment.

Embodiment 1:

(1) it selects and does carcass by 5 cun of ceramic whiteware rice bowls that 1300 DEG C of medium temperatures are burnt into, first spray one on the inside of the rice bowl green body of biscuiting The clear frit that layer 0.3mm is thick, linear expansion coefficient is 4.7 × 10-6/ DEG C, then one layer of 2.0mm thickness of side spray, line expand outside bowl body The high expansion fish scale glaze that coefficient is 7.2 × 10-6/ DEG C is burnt into after dry through 1300 DEG C of medium temperature oxidizing flames；

(2) external crack then is filled with toothpaste after its cooling, can come into operation after drying and consolidating cleaning.

Embodiment 2:

(1) it selects and does carcass by 5 cun of Shi porcelain bowl of easy fired in 1200 DEG C, first sprayed on the inside of the rice bowl green body after biscuiting One layer of 0.5mm thickness, the opal glaze that linear expansion coefficient is 4.5 × 10-6/ DEG C, then side spray one layer of 3.0mm thickness, line are swollen outside bowl body The high expansion fish scale glaze that swollen coefficient is 8.0 × 10-6/ DEG C is burnt into after dry through low-temperature oxidation flame in 1200 DEG C；

(2) external crack then is filled with toothpaste after its cooling, can come into operation after drying and consolidating cleaning.

The sample of above-mentioned preferred embodiment is to slide on 800mm dining table to concrete floor from height, and bowl body is along fish scale-shaped Circle crackle is cleaved into that the fragment to differ in size is several, and the edge of fragment is substantially round and smooth, and not sharp relic occurs.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should be included within the protection scope of invention.

Claims (4)

1. a kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress, including crockery ontology, it is characterised in that: It is covered with thin layer glaze on the inside of the crockery ontology, the outer side covering of the crockery ontology has thick-layer glaze；It is described Thin layer glaze is the low bulk glaze of 0.3-0.5mm thickness, and the thick-layer glaze is the high expansion glaze of 2-3mm thickness, described Low Thermal Expantion Glaze differs between 2.5-3.5 × 10-6/ DEG C with the linear expansion coefficient value of both high expansion glaze；The thick-layer glaze Face is in fish scale-shaped circle crackle under the action of high expansion glaze stress；When the crockery ontology is by external force destruction, Fish scale-shaped circle crackle induced fragmentation is formed, and crack extesion is prevented.

2. a kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress according to claim 1, feature exist In: the inside of the crockery ontology is smooth bright thin layer glaze.

3. a kind of fragmentation type safe ceramics tableware induced by high expansion glaze stress according to claim 1, feature exist In: toothpaste can be used to be repaired for the fish scale-shaped circle crackle.

4. a kind of manufacture craft of the fragmentation type safe ceramics tableware induced by high expansion glaze stress, it is characterised in that including as follows Processing step:

(1) it selects and carcass is done by the rice bowl of easy fired in 1200 DEG C -1300 DEG C, first sprayed on the inside of the rice bowl green body of biscuiting One layer of 0.3mm-0.5mm thickness, linear expansion coefficient are 4.5-4.7 × 10-6/ DEG C of low bulk fish scale glaze, then the side spray outside bowl body One layer of 2-3mm thickness, the high expansion fish scale glaze that linear expansion coefficient is 7.2-8 × 10-6/ DEG C, through in 1200 DEG C -1300 DEG C after drying The firing of low-temperature oxidation flame；

(2) external crack is filled with toothpaste after its cooling, after drying and consolidating cleaning.