CN101852769A - Detection method of nickel sulfide in glass - Google Patents
Detection method of nickel sulfide in glass Download PDFInfo
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- CN101852769A CN101852769A CN200910038319A CN200910038319A CN101852769A CN 101852769 A CN101852769 A CN 101852769A CN 200910038319 A CN200910038319 A CN 200910038319A CN 200910038319 A CN200910038319 A CN 200910038319A CN 101852769 A CN101852769 A CN 101852769A
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- glass
- nickel sulfide
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- magnetized
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Abstract
The invention discloses a detection method of nickel sulfide in glass. Particularly, a strong magnetization device 2 is arranged on the forwarding direction of a convey belt 1 for conveying glass 3. When the glass passes through the magnetization device, the nickel sulfide particles in the glass can be magnetized. When the glass which passes through the magnetization device goes forward along the direction of the convey belt, since the nickel sulfide being magnetized has given magnetic resistance, a high-sensitive MI magnetic sensor magnetic detection device 4 is easy to distinguish the nickel sulfide. Other harmful impurities are not magnetized and do not contain the magnetic resistance after the glass passes through the strong magnetization device, therefore the harmful impurities can not be detected when the glass passes through the magnetic detection device. After a detection signal is processed by a signal processing device 5, the nickel sulfide coordinate is observed on a display device 6.
Description
Technical field
The present invention relates to detect the method for nickel sulfide in the glass (NiS).It is the glassware at center with sheet glass that the present invention is focussed in particular on detection, comprises the method for the nickel sulfide in the glass behind tempering not and the tempering, and the present invention is not limited to this concrete application.
Technical background
Be born from tempered glass, the self-destruction problem is just following.Toughened glass self-explosion can be expressed as tempered glass broken phenomenon takes place under no outside direct acting situation automatically.In processes such as tempering processing, storage, transportation, installation, use all the toughened glass self-explosion phenomenon can take place.Around the thought theory of people's fear, under the uncomprehending situation of people, the wording of " self-destruction " more is mistaken as aerial bomb, glass cancer to the self-destruction problem of tempered glass always.There are many buildingss that built up using the glass that suffers spontaneous breaking owing to the effect of nickel sulfide snotter now, this spontaneous breaking meeting causes serious problems in the office tower that adopts large-area glass, self-destruction back fragment can cause slight injury to the crowd of the street walking in the process of being scattered.According to statistics, our building glass used in everyday has 3 ‰ self-destruction rate, that is to say that there is the self-destruction phenomenon in glass, has very big harmfulness.So far do not have and effectively prevent way, become the principal element of the toughened glass self-explosion in the use, be called " cancer of glass curtain wall ".
The self-destruction reason mainly is the existence of nickel sulfide in the glass.Nickel sulfide can become the α state when high temperature manufacturing and tempering, change but reach environment temperature as time passes, nickel sulfide can become the β state by the α attitude, and volume also can increase nearly 4%, glass chaps around so just causing nickel sulfide, and the mechanics of glass is stable behind the destruction tempering.Cause the self-destruction of tempered glass.Nickel sulfide is in the glass production process, by saltcake (Na in the stainless steel body of heater (Ni) of making glass and the frit
2SO4) in conjunction with producing, it is 0.15 millimeter microlith that 1 gram nickel sulfide just can generate about 1000 diameters to the sulphur in (S) at 1400 ℃～1500 ℃ high temperature melting furnaces combustion meltings.Certainly, occurring in nature also has nickel sulfide, sneaks into glass by making raw material.So present manufacturing process is difficult to avoid producing nickel sulfide.Whenever the self-destruction that nickel sulfide causes can take place after production is finished, so can't stop fully now.
The existence that detects the NiS calculus in glass production is very difficult.And because the problem that nickel sulphide inclusions produces often is just can reveal after longer a period of time being installed in after the glass production on the buildings.So being difficult to trace for the glass production personnel is that what reason makes the nickel sulfide content height in a certain concrete batch actually.
The domestic several method that proposed, as Chinese patent CN 1220730A, CN 1377462A discerns the nickel sulfide snotter in the glass.These two patents have adopted following two kinds of technology: (1) points to the surface of glass with laser emission, and the optical radiation on the scanning glass detects the optical radiation of snotter in the glass, writes down the coordinate of detected snotter.(2) under the controllable lighting condition, the each several part of glass pane is photographed on the photographic film, the image on the photographic film is carried out optics amplify, enlarged image is carried out optical check so that analyze snotter and other defectives.
Summary of the invention
Purpose of the present invention provides a kind of method, is used for detecting glass nickel sulfide snotter.
The objective of the invention is to be achieved by the following scheme:
A hard magnetization device is set on the travelling belt working direction of glass.
When glass passed through this magnetizing assembly, the nickel sulfide particle in the glass can be magnetized, and other bad items in the glass: bubble, sand grains, tin etc. are not influenced by magnetizing assembly can, can not be magnetized.
By the glass of magnetizing assembly, when the travelling belt direction was advanced, the magnetic indicator loop that can be set at the travelling belt top detected.This sniffer, available high-sensitive MI Magnetic Sensor detects.This pick-up unit can be unit with 1nT, detects magnetic field intensity.
By magnetizing assembly, and contain the glass of nickel sulfide, by magnetic indicator loop the time, owing to leave certain magnetic opposing in the nickel sulfide after the magnetization, this moment, magnetic indicator loop was easy to just can go out nickel sulfide respectively.
And other bad items in the glass by magnetic indicator loop the time, owing to be not magnetized, do not contain the reason of magnetic opposing, by magnetic indicator loop the time, and not reaction, and be not detected.
Description of drawings
Followingly the preferred embodiment of the invention is described with reference to accompanying drawing 1, in the described accompanying drawing:
The 1st, be used for transporting the glass travelling belt;
The 2nd, the hard magnetization device;
The 3rd, tested glass;
The 4th, magnetic indicator loop;
The 5th, signal processing apparatus;
The 6th, device displaying result;
Preferred implementation describes in detail
Referring to Fig. 1, this synoptic diagram illustrates method and the device that is used for detecting glass 3 nickel sulfide snotteres.Device comprises the travelling belt 1 that is used to transport glass, and hard magnetization device 2 can be with the NiS magnetization that contains in the glass; Magnetic indicator loop 4, can be on the zone of glass 3 scanning probe; Signal processing apparatus 5 is used to handle the signal variation that magnetic indicator loop is surveyed; Device displaying result 6 is used to show that concrete nickel sulfide snotter is at coordinate on glass.
The frame fixation that described magnetizing assembly 2 is formed from aluminium, in light weight and certain intensity is arranged, this framework is made suitable size, and to match with tested glass 3, magnetizing assembly 2 and travelling belt 1 vertical installation guarantee that magnetic field intensity is even.Tested glass 3 constantly moves forward along travelling belt 1.
Magnetic indicator loop 4 is positioned at the top of travelling belt 1 and the place ahead of magnetizing assembly 2, and the frame fixation that is formed from aluminium is equally guaranteed noiseless.Because the nickel sulfide in the glass 3 can be magnetized, and other bad items in the glass: bubble, sand grains, tin etc. are not influenced by magnetizing assembly 2 can, can not be magnetized, thereby cause nickel sulfide and on every side magnetic field to produce difference and detected by magnetic indicator loop 4.
Magnetic indicator loop has the magnetic field induction part and detects two or more magnetic fields.This pick-up unit can be that unit detects magnetic field intensity with 1nT, and described magnetic field induction partly has and comprises that Ni, Fe and Co are principal ingredient and the alloying metal film with magnetoresistance effect; Treat that in the measuring magnetic field at least one is 1.5nT or bigger.Treating to differ 0.5nT or more between minimum-B configuration and maximum field among the measuring magnetic field, magnetic indicator loop can detect the above particle of 20 μ m that can cause self-destruction.
The magnetic signal difference that magnetic indicator loop 4 detects is transformed into current signal and is sent to signal processing apparatus 5, after analyzing through Computer Processing, nickel sulfide place coordinate in the glass 3 is presented on the device displaying result 6.Can find out the position that observes nickel sulfide place in the glass in view of the above, travelling belt 1 is suspended, and the glass that will contain nickel sulfide picks.
Described method is convenient at the enterprising line operate of ordinary individual's computing machine.Personal computer provides signal, to stop or starter motor, opens and closes travelling belt, and the coordinate that writes down detected nickel sulfide.These functions also can be realized by nonshared control unit.
The purpose of this instructions all is to describe the present invention in the whole text, rather than limits the invention to the random specific combination of each feature
Claims (5)
1. a method that detects nickel sulfide in the glass comprises the steps:
A hard magnetization device is set on the travelling belt working direction of glass;
When glass passed through this magnetizing assembly, the nickel sulfide in the glass can be magnetized;
By the glass of magnetizing assembly, when the travelling belt direction was advanced, the magnetic indicator loop that can be set at the travelling belt top detected.
2. according to the method for claim 1, it is characterized in that,,,,, pick the glass that contains nickel sulfide thereby divide owing to leave certain magnetic opposing in the nickel sulfide after the magnetization again by magnetic indicator loop with the magnetization of the nickel sulfide in the glass by magnetizing assembly.
3. according to the method for claim 1, it is characterized in that, adopt magnetic indicator loop to detect.
4. according to the method for claim 1, it is characterized in that other bad items in the glass by magnetic indicator loop the time, owing to be not magnetized, do not contain the reason of magnetic opposing, by magnetic indicator loop the time, not reaction, and be not detected.
5. according to the method for claim 1, it is characterized in that, can detect the above particle of 20 μ m that can cause self-destruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038319A CN101852769A (en) | 2009-04-01 | 2009-04-01 | Detection method of nickel sulfide in glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038319A CN101852769A (en) | 2009-04-01 | 2009-04-01 | Detection method of nickel sulfide in glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101852769A true CN101852769A (en) | 2010-10-06 |
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ID=42804355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910038319A Pending CN101852769A (en) | 2009-04-01 | 2009-04-01 | Detection method of nickel sulfide in glass |
Country Status (1)
| Country | Link |
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| CN (1) | CN101852769A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597033A (en) * | 2015-02-02 | 2015-05-06 | 俞国林 | Equipment for detecting nickel sulfide explosive object in glass by virtue of Raman spectra |
| CN111712473A (en) * | 2018-03-07 | 2020-09-25 | 佳殿玻璃有限公司 | Method and system for detecting inclusions in float glass based on wavelength analysis |
| CN113109303A (en) * | 2021-05-07 | 2021-07-13 | 郑州市欣创玻璃技术有限公司 | Method and equipment for detecting explosive substances in glass |
-
2009
- 2009-04-01 CN CN200910038319A patent/CN101852769A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597033A (en) * | 2015-02-02 | 2015-05-06 | 俞国林 | Equipment for detecting nickel sulfide explosive object in glass by virtue of Raman spectra |
| CN111712473A (en) * | 2018-03-07 | 2020-09-25 | 佳殿玻璃有限公司 | Method and system for detecting inclusions in float glass based on wavelength analysis |
| CN111712473B (en) * | 2018-03-07 | 2022-02-25 | 佳殿玻璃有限公司 | Method and system for detecting inclusions in float glass based on wavelength analysis |
| CN113109303A (en) * | 2021-05-07 | 2021-07-13 | 郑州市欣创玻璃技术有限公司 | Method and equipment for detecting explosive substances in glass |
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Application publication date: 20101006 |