CN107966404B - Method for rapidly detecting combination of blank and glaze - Google Patents
Method for rapidly detecting combination of blank and glaze Download PDFInfo
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- CN107966404B CN107966404B CN201711267834.9A CN201711267834A CN107966404B CN 107966404 B CN107966404 B CN 107966404B CN 201711267834 A CN201711267834 A CN 201711267834A CN 107966404 B CN107966404 B CN 107966404B
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Abstract
The invention discloses a method for rapidly detecting combination of blank and glaze. The method for rapidly detecting the combination of the blank glaze comprises the following steps: glazing the outer surface of the annular blank, and sintering the glazed annular blank to obtain a sintered ring; marking two marks on the sintering ring, recording the linear distance between the two marks, and recording the linear distance as a first distance; cutting the sintering ring, recording the linear distance between the two marks on the sintering ring after cutting, and recording the linear distance as a second distance; and comparing the first distance with the second distance, and judging the bonding effect of the blank glaze according to the numerical value change between the first distance and the second distance. The invention has the beneficial effects that: the method for rapidly detecting the combination of the blank glaze is simple and effective, has high efficiency and can rapidly judge the combination effect of the blank glaze by representing the difference value of the sintering shrinkage rate between the blank body and the blank glaze by using the change value of the linear distance between two points on the sintering ring.
Description
Technical Field
The invention belongs to the technical field of blank glaze combination detection, and particularly relates to a method for rapidly detecting blank glaze combination.
Background
At present, the domestic blank and glaze combination detection method mainly depends on imported measurement equipment TMA-60 to measure the expansion coefficients of the blank and the glaze to judge the combination performance of the blank and the glaze, the equipment is expensive, the measurement period and the efficiency are not high, only 4 samples to 5 samples can be measured in one day, and therefore the requirement for the blank and glaze combination effect detection at present is difficult to meet.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for rapidly detecting the combination of blank and glaze.
In order to achieve the purpose, the invention adopts the following technical scheme that the method for rapidly detecting the combination of the blank and the glaze comprises the following steps: glazing the outer surface of the annular blank, and sintering the glazed annular blank to obtain a sintered ring; marking two marks on the sintering ring, recording the linear distance between the two marks, and recording the linear distance as a first distance; cutting the sintering ring, recording the linear distance between the two marks on the sintering ring after cutting, and recording the linear distance as a second distance; and comparing the first distance with the second distance, and judging the bonding effect of the blank glaze according to the numerical value change between the first distance and the second distance.
Preferably, the thickness of the green body in the sintering ring is set to be d1, the enamel thickness of the outer surface of the sintering ring is set to be d2, and the value of d1/d2 is between 9 and 15.
Preferably, the ring-shaped blank is a ring-shaped blank having a geometric shape.
Preferably, the rate of change between the first distance and the second distance is set as a ring shrinkage rate, and the bonding effect of the blank glaze is determined by the value of the ring shrinkage rate.
Preferably, the difference value between the first distance and the second distance is set as a ring shrinkage value, and the bonding effect of the blank glaze is judged according to the value of the ring shrinkage value.
A method for rapidly detecting blank glaze combination comprises the following steps: glazing the outer surface of the ring blank, and sintering the glazed ring blank to obtain a sintered ring; marking two marks on the sintering ring, recording the arc distance between the two marks, and recording the arc distance as a first distance; cutting the sintering ring, recording the arc distance between the two labels on the sintering ring after cutting, and recording the arc distance as a second distance; and comparing the first distance with the second distance, and judging the bonding effect of the blank glaze according to the numerical value change between the first distance and the second distance.
Preferably, the thickness of the circular ring blank is set to be d1, the glazing thickness of the outer surface of the circular ring blank is d2, and the value of d1/d2 is 9-15.
Preferably, the center of an arc between the two reference numbers coincides with the center of the circular ring blank, and the arc distance is the length of the arc between the two reference numbers.
Preferably, the rate of change between the first distance and the second distance is set as a ring shrinkage rate, and the bonding effect of the blank glaze is determined by the value of the ring shrinkage rate.
Preferably, the difference value between the first distance and the second distance is set as a ring shrinkage value, and the bonding effect of the blank glaze is judged according to the value of the ring shrinkage value.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
1. in the method for rapidly detecting the combination of the blank glaze, the difference value of the sintering shrinkage rates between the blank body and the blank glaze is represented by using the change value of the linear distance between two points on the sintering ring, so that the combination effect of the blank glaze is judged, the method is simple and effective, the efficiency is high, and the combination effect of the blank glaze can be rapidly judged;
2. setting the thickness of a green body in the sintering ring to be d1, the thickness of enamel on the outer surface of the sintering ring to be d2, and the numerical value of d1/d2 to be 9-15, wherein the thicknesses of the green body and the enamel in the sintering ring are required to ensure that enough stress exists in the sintering ring, so that the distance between two marks on the sintering ring has enough change value before and after cutting, and the detection accuracy is improved;
3. the annular blank body is an annular blank body with a geometric shape, the sintered ring is required to be of an annular structure, so that stress is generated due to different shrinkage rates after sintering, and the change of the distance between two marks on the sintered ring before and after cutting is obtained through stress release after the ring is cut.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a block flow diagram of a method for rapidly detecting the bonding of a blank glaze according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the marking of the sintering ring in the method for rapid detection of the bonding of the green glaze shown in FIG. 1;
fig. 3 is a flow chart of a method for rapidly detecting blank glaze bonding according to a second embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.
In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.
In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.
Example one
Referring to fig. 1, a method for rapidly detecting the combination of blank and glaze includes the following steps:
and S1, glazing the outer surface of the annular blank, and sintering the glazed annular blank to obtain the sintered ring.
Specifically, in step S1, the slurry is injected into a mold to obtain an annular blank. And after drying the annular blank at the temperature of 50-110 ℃, trimming the dried annular blank, trimming burrs and edge parts, and applying blank glaze to be detected on the outer surface of the trimmed and trimmed annular blank. And after the glazing is finished, the glazed annular blank is trimmed, dried and then placed into a production kiln for sintering to obtain a sintered ring.
Wherein the ring-shaped body is a ring-shaped body having a geometric shape. Preferably, the ring-shaped blank is a ring-shaped blank having a circular, elliptical or regular polygonal shape.
In the embodiment, the thickness of the green body in the sintered ring is set to be d1, the thickness of the enamel in the sintered ring is set to be d2, and the value of d1/d2 is between 9 and 15.
S2, marking two marks on the sintered ring, recording the straight distance between the two marks, and recording the first distance.
Specifically, in step S2, two marks A, B are marked on the sintered ring, and the linear distance between the two marks A, B is directly measured with a vernier caliper and recorded as the first distance.
It should be understood that in order to realize multiple measurements, three, four or five marks may be marked directly on the sintering ring in step S2, and the straight-line distance between any two marks is recorded, which are modifications and changes of the technical solution within the scope of the inventive concept, and are within the protection scope of the appended claims.
And S3, cutting the sintering ring, recording the straight line distance between two marks A, B on the cut sintering ring, and recording the straight line distance as a second distance.
As shown in fig. 2, in step S3, the sintered ring is cut by a cutter, and the cutting position should be between two reference numerals A, B. The linear distance between the two reference numerals A, B was measured directly with a vernier caliper and recorded as the second distance.
And S4, comparing the first distance with the second distance, and judging the bonding effect of the blank glaze according to the value change between the first distance and the second distance.
Specifically, in step S4, the difference between the first distance and the second distance is set as a ring shrinkage value, and the bonding effect of the blank glaze is determined by the ring shrinkage value. Specifically, when the ring shrinkage value is within a certain range, the bonding effect of the blank glaze is judged to meet the requirement.
It should be understood that, in step S4, the rate of change between the first distance and the second distance may also be set as the ring shrinkage ratio: and (c) determining the bonding effect of the blank glaze according to the ring shrinkage rate (i.e. the first distance-the second distance)/the first distance. And when the ring shrinkage rate is within a certain range, judging that the combination effect of the blank glaze meets the requirement.
In the method for rapidly detecting the bonding of the green glaze, shrinkage stress is generated between the green body and the green glaze in the sintered ring after sintering due to the difference in sintering shrinkage rate, and if the sintered ring is cut, the change value of the linear distance between two points on the sintered ring is changed. Moreover, if the difference in sintering shrinkage between the green body and the green glaze is larger, the variation value of the straight-line distance between two points on the sintering ring is larger; the smaller the difference in sintering shrinkage between the green body and the green glaze, the smaller the variation in the linear distance between the two points on the sintering ring. That is, the difference in sintering shrinkage between the green body and the glaze blank has a correlation with the variation in the linear distance between two points on the sintering ring. Therefore, the difference value of the sintering shrinkage rate between the green body and the blank glaze can be represented by the change value of the linear distance between two points on the sintering ring, and the combination effect of the blank glaze can be further judged.
For example, a 6mm thick circular blank is used, the thickness of the glaze applied on the circular blank is 0.4mm, and the sintered ring obtained after sintering has two marks with the linear distance of 20 mm. After cutting the sinter ring, the linear distance between the two marks after cutting is recorded. Taking FFC pulp and VC pulp which are commonly used for sanitary ware as an example, the control parameters corresponding to the ring shrinkage value in the example are obtained through a plurality of tests as follows:
| kind of pulp | VC | FFC |
| Ring shrinkage/mm | 0-1.5 | 0.5-2.0 |
Example two
Referring to fig. 3, a method for rapidly detecting blank glaze bonding specifically includes the following steps:
and S21, glazing the outer surface of the ring blank, and sintering the glazed ring blank to obtain the sintered ring.
Specifically, in step S21, slurry is injected into the mold to obtain a circular ring blank. And after drying the circular ring blank at the temperature of 50-110 ℃, trimming the dried circular ring blank, trimming burrs and edge parts, and applying a blank glaze to be detected on the outer surface of the trimmed and trimmed circular ring blank. And after the glazing is finished, trimming and drying the glazed ring blank, and then putting the ring blank into a production kiln for sintering to obtain a sintered ring.
In the embodiment, the thickness of the green body in the sintered ring is set to be d1, the thickness of the enamel in the sintered ring is set to be d2, and the value of d1/d2 is between 9 and 15.
And S22, marking two marks on the sintering ring, recording the arc distance between the two marks, and recording the arc distance as a first distance.
Specifically, in step S22, two numbers A, B are marked on the sintered ring, and the arc distance between the two numbers A, B is directly measured with a vernier caliper and recorded as the first distance. It should be noted that the center of the arc between the two reference numbers A, B coincides with the center of the circular ring blank, and the distance of the arc is the length of the arc between the two reference numbers.
It should be understood that in order to realize multiple measurements, three, four or five labels may be marked directly on the sintering ring in step S22, and the arc distance between any two labels may be recorded, which are modifications and changes of the technical solution within the scope of the inventive concept, and are within the protection scope of the appended claims.
S23, cutting the sintered ring, recording the arc distance between two marks A, B on the sintered ring after cutting, and recording as the second distance.
Specifically, in step S23, the sintered ring is cut by a cutter, and the cutting position should be between two reference numerals A, B. The arc distance between the two reference numerals A, B is measured directly with a vernier caliper and is recorded as the second distance.
And S24, comparing the first distance with the second distance, and judging the bonding effect of the blank glaze according to the value change between the first distance and the second distance.
Specifically, in step S24, the difference between the first distance and the second distance is set as a ring shrinkage value, and the bonding effect of the blank glaze is determined by the ring shrinkage value. Specifically, when the ring shrinkage value is within a certain range, the bonding effect of the blank glaze is judged to meet the requirement.
It should be understood that, in step S24, the rate of change between the first distance and the second distance may also be set as the ring shrinkage ratio: and (c) determining the bonding effect of the blank glaze according to the ring shrinkage rate (i.e. the first distance-the second distance)/the first distance. And when the ring shrinkage rate is within a certain range, judging that the combination effect of the blank glaze meets the requirement.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for rapidly detecting blank glaze combination is characterized by comprising the following steps:
glazing the outer surface of the annular blank, and sintering the glazed annular blank to obtain a sintered ring;
marking two marks on the sintering ring, recording the linear distance between the two marks, and recording the linear distance as a first distance;
cutting the sintering ring, wherein the cutting position is located between the two marks, and recording the linear distance between the two marks on the sintering ring after cutting, and recording the linear distance as a second distance;
and comparing the first distance with the second distance to obtain the value change between the first distance and the second distance, and judging that the bonding effect of the blank glaze meets the requirement when the value is in a set interval range.
2. The method for rapidly detecting the combination of the blank glaze according to claim 1, wherein the method comprises the following steps: setting the thickness of the green body in the sintered ring to be d1, the enamel thickness of the outer surface of the sintered ring to be d2, and the value of d1/d2 to be 9-15.
3. The method for rapidly detecting the combination of the blank glaze according to claim 1, wherein the method comprises the following steps: the ring-shaped body is a ring-shaped body having a geometric shape.
4. The method for rapidly detecting the combination of the blank glaze according to claim 1, wherein the method comprises the following steps: setting the change rate between the first distance and the second distance as the ring shrinkage rate, and judging the bonding effect of the blank glaze according to the value of the ring shrinkage rate.
5. The method for rapidly detecting the combination of the blank glaze according to claim 1, wherein the method comprises the following steps: setting the difference value of the first distance and the second distance as a ring shrinkage value, and judging the combination effect of the blank glaze according to the value of the ring shrinkage value.
6. A method for rapidly detecting blank glaze combination is characterized by comprising the following steps:
glazing the outer surface of the ring blank, and sintering the glazed ring blank to obtain a sintered ring;
marking two marks on the sintering ring, recording the arc distance between the two marks, and recording the arc distance as a first distance;
cutting the sintering ring, wherein the cutting position is located between the two marks, recording the arc distance between the two marks on the sintering ring after cutting, and recording the arc distance as a second distance;
and comparing the first distance with the second distance to obtain the value change between the first distance and the second distance, and judging that the bonding effect of the blank glaze meets the requirement when the value is in a set interval range.
7. The method for rapidly detecting the combination of the blank glaze according to claim 6, wherein the method comprises the following steps: setting the thickness of the circular ring blank to be d1, the glazing thickness of the outer surface of the circular ring blank to be d2, and the value of d1/d2 to be 9-15.
8. The method for rapidly detecting the combination of the blank glaze according to claim 6, wherein the method comprises the following steps: the circle center of an arc line between the two marks coincides with the circle center of the circular ring blank, and the distance of the arc line is the length of the arc line between the two marks.
9. The method for rapidly detecting the combination of the blank glaze according to claim 6, wherein the method comprises the following steps: setting the change rate between the first distance and the second distance as the ring shrinkage rate, and judging the bonding effect of the blank glaze according to the value of the ring shrinkage rate.
10. The method for rapidly detecting the combination of the blank glaze according to claim 6, wherein the method comprises the following steps: setting the difference value of the first distance and the second distance as a ring shrinkage value, and judging the combination effect of the blank glaze according to the value of the ring shrinkage value.
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| CN110736825B (en) * | 2019-11-15 | 2022-05-31 | 九牧厨卫股份有限公司 | Method for detecting glaze shrinkage defect of sanitary ceramic product glaze |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88200360U (en) * | 1988-01-07 | 1988-11-30 | 王基仁 | Coating binding force tester |
| JP2001004524A (en) * | 1999-06-18 | 2001-01-12 | Toto Ltd | Method for acceleration testing of long-term sanitary retentivity of glazed surface of sanitary ware and test liquid for testing acceleration |
| JP2004301813A (en) * | 2003-03-28 | 2004-10-28 | Resuka:Kk | Method and device for testing bonding strength |
| CN101182241A (en) * | 2007-07-31 | 2008-05-21 | 陈琦 | Crude pottery fine glaze bonding technique |
| CN101893545A (en) * | 2010-07-14 | 2010-11-24 | 深南电路有限公司 | Test method and test apparatus for bonding force of PCB (Printed Circuit Board) embedded metal base |
| CN102662046A (en) * | 2012-05-17 | 2012-09-12 | 科勒(中国)投资有限公司 | Method for detecting easy cleaning performance of sanitary ceramic glazed surface |
| JP2014119305A (en) * | 2012-12-14 | 2014-06-30 | Ricoh Co Ltd | Adhesion measuring device and adhesion measuring method |
| CN205981879U (en) * | 2016-07-10 | 2017-02-22 | 北京大学深圳医院 | Baurodont enamel shearing force test special fixture |
-
2017
- 2017-12-05 CN CN201711267834.9A patent/CN107966404B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88200360U (en) * | 1988-01-07 | 1988-11-30 | 王基仁 | Coating binding force tester |
| JP2001004524A (en) * | 1999-06-18 | 2001-01-12 | Toto Ltd | Method for acceleration testing of long-term sanitary retentivity of glazed surface of sanitary ware and test liquid for testing acceleration |
| JP2004301813A (en) * | 2003-03-28 | 2004-10-28 | Resuka:Kk | Method and device for testing bonding strength |
| CN101182241A (en) * | 2007-07-31 | 2008-05-21 | 陈琦 | Crude pottery fine glaze bonding technique |
| CN101893545A (en) * | 2010-07-14 | 2010-11-24 | 深南电路有限公司 | Test method and test apparatus for bonding force of PCB (Printed Circuit Board) embedded metal base |
| CN102662046A (en) * | 2012-05-17 | 2012-09-12 | 科勒(中国)投资有限公司 | Method for detecting easy cleaning performance of sanitary ceramic glazed surface |
| JP2014119305A (en) * | 2012-12-14 | 2014-06-30 | Ricoh Co Ltd | Adhesion measuring device and adhesion measuring method |
| CN205981879U (en) * | 2016-07-10 | 2017-02-22 | 北京大学深圳医院 | Baurodont enamel shearing force test special fixture |
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