CN107632020B - A kind of method and its application detecting tempered glass tableware automatic detonation hidden danger - Google Patents
A kind of method and its application detecting tempered glass tableware automatic detonation hidden danger Download PDFInfo
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- CN107632020B CN107632020B CN201710862711.3A CN201710862711A CN107632020B CN 107632020 B CN107632020 B CN 107632020B CN 201710862711 A CN201710862711 A CN 201710862711A CN 107632020 B CN107632020 B CN 107632020B
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Abstract
The invention discloses a kind of methods for detecting tempered glass tableware automatic detonation hidden danger, step are as follows: the line of tension of detection tempered glass tableware, center line of the line of tension closer to tempered glass cross section, the probability for generating self-destruction is smaller, for the line of tension further away from the center line of tempered glass cross section, the probability for generating self-destruction is bigger.Present invention firstly provides the thinkings for the height that tempered glass tableware generation self-destruction probability is evaluated and tested by observing the line of tension that tempered glass is formed under interior external carbuncle, in actual production, toughened glass self-explosion situation can be accurately predicted according to this method, quality control is carried out, in advance to be further reduced the self-destruction rate of factory tempered glass tableware.The method of the present invention is easy to operate, quick, efficient, at low cost, accuracy rate is high, the self-destruction situation of tempered glass product can accurately be predicted, and this method can detecte the scope of sight of 5 centimetres of 5 cm x or more, the scope of application is wider, limitation is smaller, more practicability.
Description
Technical field
It is the present invention relates to a kind of method and its application for detecting tempered glass tableware automatic detonation hidden danger, in particular to non-planar
, automatic detonation hidden danger detection method and its application with cambered tempered glass tableware.
Background technique
Currently, the production method of tempered glass tableware be by the way that float glass is heated to softening point, achieve molding,
Cooling, tempering disposably completes that (this is national inventing patent, patentee: Zibo Boshan Mengyou Toughened Glass Factory, patent
Number: ZL200510045417.0, inventor: Meng Deyou).Raw material as tempered glass tableware product: float glass, because of it
Itself agricultural technology problem cannot completely eliminate the presence of nickel sulphide inclusions, and tempered glass tableware band is cambered, has difference
Shape, be related to the operations such as intermediate punching, edge punching in the process of production and processing, the case where punching diameter is less than thickness of glass
Under to will lead to region of stress concentration stress excessive, so that unbalanced stress inside and outside tempered glass tableware is weighed, thus tempering glass made of making
Glass tableware is also easy to produce self-destruction.In addition, because foring powerful compression on the surface of glass after carrying out deep processing by annealing furnace,
The presence of this stress is counteracted to a certain extent from external impact, and tempered glass tableware is made to show high-intensitive spy
Property, and stress is bigger, the intensity of tempered glass is higher, but has thus broken the balance of interior external carbuncle, and leads to tempering glass
The self-destruction of glass tableware.
Tempered glass can not be avoided completely for self-destruction and absence of aura, and the probability occurred is according to the insiders
Statistics about 0.3% or more, the self-destruction rate of curved strengthened glass especially tempered glass tableware is relatively higher, in order to guarantee safety
And quality, the detection for carrying out the self-destruction of tempered glass product are particularly important.Currently, the detection method about toughened glass self-explosion hidden danger
There is following relevant report:
Patent 200810167250.9 discloses a kind of method and device for detecting automatic detonation hidden danger of glass curtain wall, patent benefit
With a refraction photo-elastic instrument, a movement driving-controlling device, an image recording and transmitting device and equipped with stress analysis and evaluation software
Computer obtains the stressed cord image of cladding glass by reflecting photoelastic principle, then carries out image procossing to stressed cord
And quantitative analysis, the size and distribution of stress are obtained, to correctly estimate that mount stress, internal stress and stress are concentrated.Root accordingly
It is evaluated according to the risk that stress level reveals glass curtain wall.The patent is only applicable to the detection of plane tempered glass, for song
Especially there is face tempered glass the stress mornitoring of the tempered glass tableware of more curved surfaces cannot achieve, because of its kinematic driving unit
Stress image can only be obtained on smooth glass surface and obtains stress value, and is needed hard with image recording transmitting device, computer etc.
Part and image processing software collocation use, at high cost, complicated for operation.
Patent 201610083995.1 discloses one kind and is suitable for the physical toughened stress detection device of large format plate glass,
The device includes support system, light-source system, is polarized system, support/transmission system, analyzing system, imaging/record system, quilt
Detecting sample is physical toughened plate glass.The patent utilizes the birefringent principle of transmission-type glass strain, to birefringent light linear light
Path difference is measured, and then there are stress value sizes in understanding glassware.Using solid space layout structure mode, will be detected
Test specimens (physical toughened plate glass) are horizontal positioned or horizontal conveyor using high uniformity bias light forms big scope of sight,
Ken size is greater than 1.5m × 2.5m.The detection device is only applicable to the detection of plane tempered glass, which need to pass through Large Steel
Change stress mornitoring measuring apparatus glass self-explosion, scope of sight is wide, it must just can detect self-destruction in 1.5 × 2.5 meters of scope of sight,
And higher cost, the tempered glass tableware of more curved surfaces are not suitable at all.
Patent 201220705611.2 discloses a kind of automatic detonation hidden danger of glass curtain wall detection system, which includes refraction light
Instrument, kinematic driving unit, image recording structure, wireless data transmission device and analysis processing device are played, further includes environment inspection
Device is surveyed, automatic detonation hidden danger of glass curtain wall grade is analyzed in system energy combining environmental variation.The patent passes through refraction principle, movement
Driving device, PC machine obtain stress image, at high cost, complicated for operation, and the patent is only applicable to the detection of plane tempered glass, right
Especially have the stress mornitoring of the tempered glass tableware of more curved surfaces not applicable in curved strengthened glass.
It is generallyd use by the self-destruction detection technique that the above prior art can be seen that existing tempered glass product complete
Equipment carry out, it is at high cost, complicated for operation, and be only applicable to plane tempered glass, be not applied for curved strengthened glass.And mesh
It is preceding also without for tempered glass tableware self-destruction detection method relevant report.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of sides for detecting tempered glass tableware automatic detonation hidden danger
The self-destruction situation of method, the tempered glass tableware that this method can be changeable to radian is compared accurate detection, can detecte more
Curved strengthened glass tableware surface 5CM × 5CM or more scope of sight avoids existing self-destruction detection mostly dependent on movement driving
The drawbacks of device, PC machine and existing self-destruction detection cannot detect the tempered glass tableware of more curved surfaces, simplifies detection program,
Easy to operate, quick, efficient, at low cost, the scope of application is wider, limitation is smaller, more practicability.
Inventor is accumulated experience by the tempered glass deep processing of many years, and discovery has a stress on tempered glass tableware
Line, the line of tension are located on the section vertical with tempered glass thickness direction, can not with the naked eye observe, and need by magnifying glass
It can observe, therefore be referred to as stealthy line of tension, abbreviation line of tension.The line of tension can observe with magnifying glass, the stress
The formation basic theory of line are as follows: tempered glass during forming tempering, upper and lower wind pressure rapid cooling make glass formed internal stress with
External carbuncle balances physical toughened, because inside and outside Stress superposition can make the tempered glass to be formed on the section vertical with thickness direction
Form a stealthy line of tension.In the present invention, it for the ease of statement, will hang down on tempered glass with tempered glass thickness direction
Straight section is defined as tempered glass cross section, as shown in Figure 3.When inside and outside stress equilibrium, which is located at tempering
The center of glass cross section, is similar to straight line, and when inside and outside unequal power distribution, it is transversal which can deviate tempered glass
The center in face, and a curve can be become, and it is bigger to deviate bigger line of tension bending degree.Inventor is to a large amount of tempering glass
Glass tableware is tested, it is found that the self-destruction presence of the stealth line of tension and tempered glass tableware significantly contacts, when the stress
When line is with the center line overlap of tempered glass cross section or positioned at the approximate centerline of tempered glass cross section, tempered glass tableware
Be not in that self-destruction or the probability for occurring revealing are lower, when the line of tension relative to tempered glass cross section center line occur compared with
When big offset (offset to the left or to the right), the probability of tempered glass tableware self-destruction increases, and it is bigger to deviate bigger self-destruction probability.
As shown in Figure 1, for line of tension and the completely overlapped schematic diagram of tempered glass cross-section center line, as shown in Fig. 2, inclined for line of tension
Move the schematic diagram of tempered glass cross-section center line.
According to above-mentioned rule, a kind of simple, efficient detection tempered glass tableware product automatic detonation hidden danger is inventor provided
Method, this method is: detection tempered glass tableware line of tension, center of the line of tension closer to tempered glass cross section
Line, the probability for generating self-destruction is smaller, and the line of tension further away from the center line of tempered glass cross section, get over by the probability for generating self-destruction
Greatly；The line of tension is tempered glass during forming tempering, because inside and outside wind pressure makes Stress superposition due to it is horizontal in tempered glass
The line formed on section.The line of tension is located on tempered glass cross section, and the tempered glass cross section is as defined above,
For the section vertical with tempered glass thickness direction.
Tempered glass tableware of the present invention can be disclosed in the prior art arbitrarily using tempered glass as raw material system
At tableware, including service plate, fruit dish etc., preferably according to the tempering of the production of method shown in invention 200510045417.0
Dinner glass.In the tempered glass tableware it is general have simultaneously plane (also referred to as burnishing surface, similarly hereinafter) and curved surface (also referred to as cambered surface,
Similarly hereinafter), can have a variety of different radians and shape, such as patent CN200830282532.4, patent
Shape in CN200830282529.2, patent CN200830282530.5.
Further, when tempered glass tableware only has curved surface, the line of tension situation of curvature portion is only detected, when
It, when detecting will be into for the line of tension situation of plane and curvature portion when tempered glass tableware has plane and curved surface simultaneously
Row detection.Wherein, when the curved surface in tempered glass tableware with multiple and different radians, a maximum curved surface of radian is only detected
Line of tension situation.
Further, inventor is further studied summary to the relationship between line of tension and self-destruction rate, makes this
Invention detection method has very high Detection accuracy, so as to instruct industrial production.It is specific as follows:
A. when tempered glass tableware only has cambered surface, the maximum curvature portion detection line of tension of a radian is selected.Steel
When changing the line of tension of dinner glass curvature portion away within the scope of the center line 0-0.6mm of the curvature portion tempered glass cross section,
Tempered glass tableware is less prone to self-destruction, is qualified products.Conversely, being more than this range, easily reveal, is substandard product.
B. when tempered glass tableware has plane and curved surface simultaneously, the maximum curvature portion of radian is selected, simultaneously
Detect the line of tension situation of planar section and the curvature portion of the maximum radian.When the line of tension of tempered glass tableware planar section
Within the scope of center line 0-0.5mm away from the planar section tempered glass cross section and the line of tension of tempered glass tableware curvature portion
When within the scope of the center line 0-0.6mm away from the curvature portion tempered glass cross section, tempered glass tableware is less prone to self-destruction, is
Qualified products.Conversely, being more than this range, easily reveal, is substandard product.
Further, when the line of tension of tempered glass tableware planar section is away from the planar section tempered glass cross section
Within the scope of heart line 0-0.2mm, the line of tension of tempered glass tableware curvature portion is away from the curvature portion tempered glass cross section
When within the scope of heart line 0-0.3mm, self-destruction rate is lower, and tableware quality is more preferably.
In the method for the present invention, the detection method of line of tension is: using jump bit that the progress of tempered glass tableware is destructive residual
Adhesive tape is sticked to tempered glass tableware surface first by built-in testing, passes through impact at away from tempered glass tableware edge 0.5cm
Hammer carries out moment impact to tempered glass tableware and is crushed, and broken rear toughened glass grains are sticked on adhesive tape, appoints and takes a steel
Change glass particle, amplifies its tempered glass cross section of sem observation by 10-20 times, can find line of tension.
The present invention also provides the applications of the method for above-mentioned detection tempered glass tableware automatic detonation hidden danger.In actual production,
The quality that product export can be carried out using the method for the present invention controls monitoring, specifically includes the following steps:
1, when producing every batch of tempered glass tableware, random sampling, sampling are carried out according to tempered glass tableware product quantity
Quantity is as follows:
Every batch of 3000 and within sample size 5；
3001-4999 sample size of every batch of 10；
5000-9999 sample size of every batch of 15；
Every batch of 10000 or more sample size 30；
2, method of quality control
Line of tension detection is carried out to each sample according to above-mentioned stress line detecting method, when answering for all samples
When the line of force all meets the requirements, then this batch of tempered glass tableware is qualified products；On the contrary then this batch of tempered glass tableware is not conform to
Lattice product；Line of tension, which meets the requirements, to be referred to: the line of tension of tempered glass tableware planar section is horizontal away from the planar section tempered glass
Within the scope of the center line 0-0.5mm in section, and the line of tension of tempered glass tableware curvature portion is away from the curvature portion tempered glass
Within the scope of the center line 0-0.6mm of cross section.
Present invention firstly provides the line of tensions formed under interior external carbuncle by observation tempered glass tableware by wind pressure to comment
The thinking that tempered glass tableware generates the height of self-destruction probability is surveyed, which gets over energy closer to tempered glass cross-section center line
The inside and outside stress equilibrium for realizing tempered glass, is more less prone to self-destruction, the external carbuncle in tempered glass cross-section center line
It is more uneven, it is easier to reveal.In actual production, toughened glass self-explosion situation can be accurately predicted according to this method,
Quality control is carried out, in advance to be further reduced the self-destruction rate of factory tempered glass tableware.The method of the present invention is easy to operate, fast
It is prompt, efficient, at low cost, accuracy rate is high, can accurately predict the self-destruction situation of tempered glass tableware product, and this method can
To detect the scope of sight of 5 centimetres of 5 cm x or more, the scope of application is wider, limitation is smaller, more practicability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the center line overlap of line of tension and tempered glass cross section；
Fig. 2 is the schematic diagram of stress line offset tempered glass cross-section center line；
Fig. 3 is the schematic diagram of the tempered glass cross section of tempered glass tableware curvature portion and planar section.
Specific embodiment
The present invention is further expalined and is illustrated below by specific embodiment, so that those skilled in the art can
Better understand the present invention.It will be appreciated that the following instruction is only illustrative, its protection scope is not limited
It is fixed.
Embodiment 1
By taking the heart-shaped tempered glass tableware recorded in patent CN200830282532.4 as an example, the standard of the method for the present invention is verified
True property is as follows:
Tempered glass tableware 10 batches of the above-mentioned shape of Workshop Production are randomly selected, every batch of randomly chooses 2000 samples,
20000 samples are selected to be tested altogether.This 20000 samples are equally divided into two groups by batch, two methods are respectively adopted
Detection self-destruction situation.
Wherein 10000 samples are using the method for the present invention detection self-destruction situation, step are as follows: utilize jump bit by each tempering
Dinner glass sample carries out destructive relic test, adhesive tape is sticked to sample surfaces first, at away from sample edge 0.5CM
It carries out moment impact to sample by jump bit to be crushed, broken rear toughened glass grains are sticked on adhesive tape, each particle
Size about in 5cm × 5cm or so.Two kinds of toughened glass grains for selecting sample plane part and maximum cambered surface part, lead to
It crosses itself and amplifies the line of tension that sem observation is located on tempered glass cross section with graduated 10-20 times, obtain line of tension away from
The offset of heart line.By taking the tempered glass tableware of thickness 4mm as an example, the thickness of each toughened glass grains is 4mm, if stress
The distance on line-spacing tempered glass one side is 1.9mm, and the distance away from another side is 2.1mm, then offset of the line of tension away from center line
Amount is 0.1mm；If distance of the line of tension away from tempered glass one side is 2.3mm, the distance away from another side is 1.7mm, then stress
The offset of line-spacing center line is 0.3mm.
When line of tension is curve, line of tension from center line it is farthest with a distance from offset distance as line of tension.Planar portions
Divide and curvature portion takes three particles to do parallel observations respectively, is averaged.If the planar portions of a tempered glass tableware sample
Within the scope of center line 0-0.5mm of the line of tension away from the planar section tempered glass cross section divided, and the line of tension of curvature portion
Within the scope of center line 0-0.6mm away from the curvature portion tempered glass cross section, it is determined that it is higher for intensity, it is not easy to reveal.Instead
Then intensity it is lower, easily reveal.Self-destruction rate, self-destruction rate=easily reveal sample number/sample total number are calculated according to testing result.
Another 10000 samples are by steel ball impact method detection self-destruction situation, step are as follows: sample is put into stress impact instrument
In, impact 10 times is carried out in 1.2 meters of vertical drops by 116 grams of steel balls.If tempered glass tableware product is intact after impact 10 times
It is lossless, it is determined that it is higher for intensity, it is not easy to reveal；It is on the contrary then intensity is lower, easily reveal.Self-destruction rate is calculated according to testing result,
Self-destruction rate=sample breakage number/sample total number.
It is as shown in table 1 below using the testing result of the method for the present invention:
Testing result using steel ball impact method is as shown in table 2 below:
As can be seen from the above results, the self-destruction rate detected using the method for the present invention and the self-destruction for using steel ball ballistic method
The rate goodness of fit is high, can carry out practical application completely.It can be seen that the method for the present invention is not only easy to operate at low cost, also
With very high accuracy.
Embodiment 2
In the actual production process of tempered glass tableware, automatic detonation hidden danger can be detected by the method for the invention to control out
The product quality of factory, method of quality control are as follows:
1, when producing every batch of tempered glass tableware, random test is carried out according to tempered glass tableware product quantity,
Sample size is as follows:
Every batch of 3000 and within sample size 5；
3001-4999 sample size of every batch of 10；
5000-9999 sample size of every batch of 15；
Every batch of 10000 or more sample size 30；
2, method of quality control
Each tempered glass tableware sample is carried out destructive relic using jump bit to test, is first sticked to adhesive tape
Sample surfaces carry out moment impact to sample by jump bit at away from sample edge 0.5CM and are crushed, tempered glass after being crushed
Grain is sticked on adhesive tape, and the size of each particle is about in 5cm × 5cm or so.Select sample plane part and maximum arc
Two kinds of toughened glass grains of face part, with graduated 10-20 times amplifying sem observation by itself, to be located at tempered glass transversal
Line of tension on face measures offset of the line of tension away from tempered glass cross-section center line.When line of tension is curve, line of tension
From center line it is farthest with a distance from offset as line of tension.Planar section takes three particles to do parallel sight respectively with curvature portion
It examines, is averaged.
If the line of tension of the tempered glass tableware planar section of a tempered glass tableware sample is away from the planar section tempering
Within the scope of the center line 0-0.5mm of glass cross section, and the line of tension of tempered glass tableware curvature portion is away from the curved face part steel splitting
Within the scope of the center line 0-0.6mm for changing glass cross section, then the tempered glass tableware does not have automatic detonation hidden danger.If the batch institute
There is sample not have automatic detonation hidden danger, then this batch of sample is qualified products, if the batch sample has a stress
Line deviation is unsatisfactory for above-mentioned requirements, then has automatic detonation hidden danger, is substandard product.
By taking the tree leaf-shaped tempered glass tableware of patent CN200830282530.5 as an example, eat to the tempered glass of different batches
Tool is sampled inspection, as a result as shown in the following table 3 and 4:
In conclusion the method for the present invention detection process is direct, easy, cost is relatively low, scope of sight is small, can be accurate
It realizes 5CM × 5CM or more scope of sight self-destruction detection, there is good detection effect for tempered glass tableware.Inventor
Patent of invention (the patent No. of independent research early period entitled " a kind of the method for producing high temp resisting tempering glass dish and mold "
ZL200510045417.0), the method for the present invention is hidden to the self-destruction of the tempered glass tableware product manufactured according to above-mentioned patented method
Suffer from detection to be especially suitable for, there is good accuracy.
Claims (7)
1. a kind of method for detecting tempered glass tableware automatic detonation hidden danger, it is characterized in that: the line of tension of detection tempered glass tableware, it should
For line of tension closer to the center line of tempered glass cross section, the probability for generating self-destruction is smaller, and the line of tension is further away from tempered glass
The center line of cross section, the probability for generating self-destruction are bigger；The line of tension is tempered glass during forming tempering, because of wind
Press the line of tension for making inside and outside Stress superposition and being formed on tempered glass cross section；The tempered glass cross section is and steel
Change the vertical section in thickness of glass direction.
2. according to the method described in claim 1, it is characterized in that: only detecting curved surface when tempered glass tableware only has curved surface
Partial line of tension situation, when tempered glass tableware has plane and curved surface simultaneously, for plane and curvature portion
Line of tension situation will be detected.
3. according to the method described in claim 2, it is characterized in that: when the curved surface in tempered glass tableware with multiple and different radians
When, only detect the line of tension situation of a maximum curved surface of radian.
4. method according to any one of claim 1-3, it is characterized in that: when tempered glass tableware have simultaneously plane and
When curved surface, the line of tension of planar section is away within the scope of the center line 0-0.5mm of the planar section tempered glass cross section and tempering
When within the scope of center line 0-0.6mm of the line of tension of dinner glass curvature portion away from the curvature portion tempered glass cross section, steel
Change dinner glass and is less prone to self-destruction；Conversely, easily revealing.
5. according to the method described in claim 3, it is characterized in that: when the line of tension of tempered glass tableware planar section is away from the plane
Within the scope of the center line 0-0.2mm of part tempered glass cross section and the line of tension of tempered glass tableware curvature portion is away from the curved surface
When within the scope of the center line 0-0.3mm of part tempered glass cross section, tempered glass tableware is less prone to self-destruction；Conversely, easily going out
Now reveal.
6. method according to any one of claim 1-3, it is characterized in that: the detection method of line of tension is: utilizing impact
Tempered glass tableware is carried out destructive relic test by hammer, adhesive tape is sticked to tempered glass tableware surface first, away from steel
Change broken to tempered glass tableware progress moment impact by jump bit at dinner glass edge 0.5cm, tempered glass after being crushed
Particle is sticked on adhesive tape, is appointed and is taken a toughened glass grains, and it is transversal to amplify sem observation its tempered glass by 10-20 times
Face can find line of tension.
7. a kind of method of quality control of tempered glass tableware, it is characterized in that: the following steps are included:
(1) when producing every batch of tempered glass tableware, random sampling is carried out according to tempered glass tableware quantity, sample size is such as
Under:
Every batch of 3000 and within sample size 5；
3001-4999 sample size of every batch of 10；
5000-9999 sample size of every batch of 15；
Every batch of 10000 or more sample size 30；
(2) method of quality control
Line of tension detection, when the line of tension of all samples all meets the requirements, then this batch are carried out to each sample
Tempered glass tableware is qualified products；On the contrary then this batch of tempered glass tableware is substandard product；Line of tension, which meets the requirements, to be referred to:
Within the scope of center line 0-0.5mm of the line of tension of tempered glass tableware planar section away from the planar section tempered glass cross section,
And center line 0-0.6mm range of the line of tension of tempered glass tableware curvature portion away from the curvature portion tempered glass cross section
It is interior.
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