CN106183358A - A kind of method separating laminated glass fracture - Google Patents
A kind of method separating laminated glass fracture Download PDFInfo
- Publication number
- CN106183358A CN106183358A CN201610529741.8A CN201610529741A CN106183358A CN 106183358 A CN106183358 A CN 106183358A CN 201610529741 A CN201610529741 A CN 201610529741A CN 106183358 A CN106183358 A CN 106183358A
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- China
- Prior art keywords
- laminated glass
- fracture
- line
- glass
- vibration damping
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention belongs to FAILURE ANALYSIS TECHNOLOGY field, relate to the improvement separating laminated glass fracture method.It is characterized in that, the step separating laminated glass fracture is as follows: determine the softening temperature of vibration damping glue-line；Separate laminated glass fracture.The present invention proposes a kind of method separating laminated glass fracture of improvement, it is to avoid generation secondary cracks and pollute unorganic glass fracture, it is therefore prevented that destroy original fracture；Improve separation efficiency, it is ensured that the accuracy of failure analysis result.
Description
Technical field
The invention belongs to FAILURE ANALYSIS TECHNOLOGY field, relate to the improvement separating laminated glass fracture method.
Background technology
The front windshield of aircraft and high ferro typically uses laminated glass and metal frame is bonding forms.Laminated glass is by multilamellar
The unorganic glass of different-thickness and vibration damping glue-line is bonding forms, on elastic adhesive to metal frame, then is bolt-connected to car body
Or on body.Such as, the laminated glass of a kind of high ferro is by 3 layers of unorganic glass and the glue-line cross lamination group identical with the glass number of plies
Become, from the inside several the 1st layer of glue-line be anti-splashing layer, the 2nd, 4,6 layers is unorganic glass layer, adjacent two unorganic glass layers it
Between be vibration damping glue-line.During running, front windshield inevitably meets with shock, fatigue etc. and destroys.Work as front windshield
When crackle occurs in glass, need crack fracture is analyzed, determine the origin of crackle and analyze crackle Producing reason.At present
The method separating laminated glass fracture is: uses abrasive wheel cutting machine to cut the laminated glass with crackle, then will cut
The sample cut carries out heating in water bath separation.Its shortcoming is: the first, the method is easy to produce two secondary fissures during cutting
Stricture of vagina, destroys original fracture, affects failure analysis result；The second, the heat time heating time that heating in water bath needs is longer, separation efficiency
Low, even if heating more than 48 hours, unorganic glass and vibration damping glue-line are still difficult to separate, and during heating, inorganic
Glass fracture is easy to be contaminated, and affects failure analysis result equally.
Summary of the invention
It is an object of the invention to: propose a kind of method separating laminated glass fracture of improvement, to avoid producing two secondary fissures
Stricture of vagina and pollution unorganic glass fracture, prevent from destroying original fracture；Improve separation efficiency, it is ensured that failure analysis result accurate
Property.
The technical scheme is that a kind of method separating laminated glass fracture, the laminated glass separated is by 3 layers of nothing
Machine glass and the glue-line cross lamination identical with glass number of plies composition, from the inside several the 1st layer of glue-line be anti-splashing layer, the 2nd,
4,6 layers is unorganic glass layer, is vibration damping glue-line, at least the one of the laminated glass separated between adjacent two unorganic glass layers
An at least Crack on layer unorganic glass；It is characterized in that, the step separating laminated glass fracture is as follows:
1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of at least 2g from the side of laminated glass, to it
Carry out means of differential scanning calorimetry test, determine the softening temperature of vibration damping glue-line；
2, laminated glass fracture is separated:
2.1, laminated glass is put into baking oven, be heated to the softening temperature of vibration damping glue-line, temperature retention time at least 15min, take
Go out laminated glass and carry out glassy layer separation, if glassy layer is kept completely separate, separates laminated glass fracture and terminate；Otherwise, carry out following
Step:
2.2, again laminated glass is put into baking oven for heating to softening temperature, temperature retention time at least 15min, takes out interlayer glass
Glass carries out glassy layer separation again；If glassy layer is kept completely separate, separates laminated glass fracture and terminate；If glassy layer is the most complete
Separate, repeat said method and again add thermal release, until glassy layer is kept completely separate；Now, with the glassy layer meeting of crackle
Open along crack fracture.
The invention have the advantage that a kind of method separating laminated glass fracture proposing improvement, it is to avoid generation secondary
Crackle and pollution unorganic glass fracture, it is therefore prevented that destroy original fracture；Improve separation efficiency, it is ensured that failure analysis result
Accuracy.
Detailed description of the invention
Below the present invention is described in further details.A kind of method separating laminated glass fracture, the interlayer separated
Glass is made up of 3 layers of unorganic glass and the glue-line cross lamination identical with the glass number of plies, from the inside several the 1st layer of glue-line be anti-
Spray region, the 2nd, 4,6 layers is unorganic glass layer, is vibration damping glue-line, at the interlayer separated between adjacent two unorganic glass layers
An at least Crack at least one of which unorganic glass of glass；It is characterized in that, the step separating laminated glass fracture is as follows:
1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of at least 2g from the side of laminated glass, to it
Carry out means of differential scanning calorimetry test, determine the softening temperature of vibration damping glue-line；
2, laminated glass fracture is separated:
2.1, laminated glass is put into baking oven, be heated to the softening temperature of vibration damping glue-line, temperature retention time at least 15min, take
Go out laminated glass and carry out glassy layer separation, if glassy layer is kept completely separate, separates laminated glass fracture and terminate；Otherwise, carry out following
Step:
2.2, again laminated glass is put into baking oven for heating to softening temperature, temperature retention time at least 15min, takes out interlayer glass
Glass carries out glassy layer separation again；If glassy layer is kept completely separate, separates laminated glass fracture and terminate；If glassy layer is the most complete
Separate, repeat said method and again add thermal release, until glassy layer is kept completely separate；Now, with the glassy layer meeting of crackle
Open along crack fracture.
The operation principle of the present invention is: after high-temperature heating to the softening temperature of vibration damping glue-line, part in the adhesive of solidification
Subchain is opened, and ruptures, and adhesive property is gradually reduced, glue-line and glass certain External Force Acting issue estranged from, thus
Obtain complete glass fracture.
Embodiment 1, separates 1# high ferro train windshield fracture, has one on the 2nd layer of unorganic glass of this windshield
Crack.
1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of 2.5g from the side of laminated glass, it is entered
Row means of differential scanning calorimetry is tested, and determines that the softening temperature of vibration damping glue-line is 110 DEG C；
2, laminated glass fracture is separated:
2.1, laminated glass is put into baking oven, be heated to the softening temperature 110 DEG C of vibration damping glue-line, temperature retention time 20min, take
Going out laminated glass and carry out glassy layer separation, glassy layer is not kept completely separate, and carries out following step:
2.2, again laminated glass is put into baking oven for heating to softening temperature 110 DEG C, temperature retention time 15min, taking-up interlayer
Glass carries out glassy layer separation again；Glassy layer is kept completely separate, and the 2nd layer of unorganic glass is opened along crack fracture.
Embodiment 2, separates 2# high ferro train windshield fracture, at the 2nd layer and the 4th layer of unorganic glass of this windshield
On be respectively arranged with a Crack.
1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of 3g from the side of laminated glass, it is carried out
Means of differential scanning calorimetry is tested, and determines that the softening temperature of vibration damping glue-line is 112 DEG C；
2, laminated glass fracture is separated:
2.1, laminated glass is put into baking oven, be heated to the softening temperature 112 DEG C of vibration damping glue-line, temperature retention time 25min, take
Going out laminated glass and carry out glassy layer separation, glassy layer is not kept completely separate, and carries out following step:
2.2, again laminated glass is put into baking oven for heating to the softening temperature 112 DEG C of vibration damping glue-line, temperature retention time
20min, takes out laminated glass and again carries out glassy layer separation, and glassy layer is not kept completely separate, and carries out following step:
2.3, continue to put into laminated glass baking oven for heating to the softening temperature 112 DEG C of vibration damping glue-line, temperature retention time
18min, takes out laminated glass and again carries out glassy layer separation, and glassy layer is kept completely separate, and the 2nd layer and the 4th layer of unorganic glass edge are split
Stricture of vagina breaks apart.
Embodiment 3, separates 3# high ferro train windshield fracture, has 3 articles on the 4th layer of unorganic glass of this windshield
Crackle.
1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of 2.6g from the side of laminated glass, it is entered
Row means of differential scanning calorimetry is tested, and determines that the softening temperature of vibration damping glue-line is 111 DEG C；
2, laminated glass fracture is separated:
2.1, laminated glass is put into baking oven, be heated to the softening temperature 111 DEG C of vibration damping glue-line, temperature retention time 20min, take
Going out laminated glass and carry out glassy layer separation, glassy layer is not kept completely separate, and carries out following step:
2.2, again laminated glass is put into baking oven for heating to the softening temperature 111 DEG C of vibration damping glue-line, temperature retention time
18min, takes out laminated glass and again carries out glassy layer separation, and glassy layer is not kept completely separate, and carries out following step:
2.3, continue to put into laminated glass baking oven for heating to the softening temperature 111 DEG C of vibration damping glue-line, temperature retention time
15min, takes out laminated glass and again carries out glassy layer separation, and glassy layer is kept completely separate, and the 2nd layer of unorganic glass breaks along 3 Cracks
Split.
Claims (1)
1. the method separating laminated glass fracture, the laminated glass separated by 3 layers of unorganic glass and with unorganic glass layer
Number identical glue-line cross lamination composition, from the inside several the 1st layer of glue-line be anti-splashing layer, the 2nd, 4,6 layers is unorganic glass
Layer, be vibration damping glue-line between adjacent two unorganic glass layers, the laminated glass separated at least one of which unorganic glass up to
A rare Crack；It is characterized in that, the step separating laminated glass fracture is as follows:
1.1, the softening temperature of vibration damping glue-line is determined: take the vibration damping glue-line sample of at least 2g from the side of laminated glass, it is entered
Row means of differential scanning calorimetry is tested, and determines the softening temperature of vibration damping glue-line；
1.2, laminated glass fracture is separated:
1.2.1, laminated glass is put into baking oven, be heated to the softening temperature of vibration damping glue-line, temperature retention time at least 15min, takes out
Laminated glass carries out glassy layer separation, if glassy layer is kept completely separate, separates laminated glass fracture and terminates；Otherwise, following step is carried out
Rapid:
1.2.2 baking oven for heating, again by laminated glass is put into softening temperature, temperature retention time at least 15min, takes out laminated glass
Again carry out glassy layer separation；If glassy layer is kept completely separate, separates laminated glass fracture and terminate；If glassy layer divides the most completely
From, repeat said method and again add thermal release, until glassy layer is kept completely separate；Now, the glassy layer with crackle can edge
Crack fracture is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529741.8A CN106183358A (en) | 2016-07-06 | 2016-07-06 | A kind of method separating laminated glass fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529741.8A CN106183358A (en) | 2016-07-06 | 2016-07-06 | A kind of method separating laminated glass fracture |
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| CN106183358A true CN106183358A (en) | 2016-12-07 |
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| CN201610529741.8A Pending CN106183358A (en) | 2016-07-06 | 2016-07-06 | A kind of method separating laminated glass fracture |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247751A (en) * | 1993-02-24 | 1994-09-06 | Asahi Glass Co Ltd | Method for recovering glass from laminated glass |
| JP2002053324A (en) * | 2000-08-07 | 2002-02-19 | Masaki Ijichi | Method for separating glass from laminated glass |
| JP2005219042A (en) * | 2004-01-05 | 2005-08-18 | Fuji Heavy Ind Ltd | Separation method for laminated glass |
| CN1774483A (en) * | 2003-04-14 | 2006-05-17 | 积水化学工业株式会社 | Method for releasing adhered article,and method for recovering electronic part from a laminate and laminated glass releasing method |
| CN104483327A (en) * | 2014-12-30 | 2015-04-01 | 芜湖赛宝信息产业技术研究院有限公司 | Damage identification and analysis method for resin matrix composite mechanical-connection structure |
-
2016
- 2016-07-06 CN CN201610529741.8A patent/CN106183358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247751A (en) * | 1993-02-24 | 1994-09-06 | Asahi Glass Co Ltd | Method for recovering glass from laminated glass |
| JP2002053324A (en) * | 2000-08-07 | 2002-02-19 | Masaki Ijichi | Method for separating glass from laminated glass |
| CN1774483A (en) * | 2003-04-14 | 2006-05-17 | 积水化学工业株式会社 | Method for releasing adhered article,and method for recovering electronic part from a laminate and laminated glass releasing method |
| JP2005219042A (en) * | 2004-01-05 | 2005-08-18 | Fuji Heavy Ind Ltd | Separation method for laminated glass |
| CN104483327A (en) * | 2014-12-30 | 2015-04-01 | 芜湖赛宝信息产业技术研究院有限公司 | Damage identification and analysis method for resin matrix composite mechanical-connection structure |
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Application publication date: 20161207 |
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