CN106597172A - Pre-embedded fusion tube verifying method - Google Patents
Pre-embedded fusion tube verifying method Download PDFInfo
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- CN106597172A CN106597172A CN201611227639.9A CN201611227639A CN106597172A CN 106597172 A CN106597172 A CN 106597172A CN 201611227639 A CN201611227639 A CN 201611227639A CN 106597172 A CN106597172 A CN 106597172A
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- Prior art keywords
- fusion tube
- temperature
- test
- built
- verification method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a pre-embedded fusion tube verifying method comprising the following nine steps: spot check, low-temperature test, first room temperature recovery, high-temperature test, second room temperature recovery, cycle test, seal test, resistance measurement, and sample sealing. The process design of the pre-embedded fusion tube verifying method is reasonable. A fusion tube needing test is tested continuously in high- and low-temperature environments, and temperature differences alternate. Then, seal test is carried out using helium. The whole verification test process is carried out using equipment, and the measured data is relatively accurate and reliable. By using the method to test the sealing performance and contact resistance, the overall quality of the fusion tube is of high reference value.
Description
Technical field
The present invention relates to a kind of verification method of built-in type fusion tube.
Background technology
Fusion tube plays the effect without damage of protection fuse as the shell of fuse when normal, be typically equipped with inside it
The materials such as quartz sand, when fuse failure, can play cooling effect to the electric arc for producing, and the body of fusion tube can also stop electricity
Arc splashes, and prevents from causing fire or hurts sb.'s feelings.
Fusion tube typically can all verify its reliability after production is completed, and mainly verify that its sealing and its contact of measurement are electric
Resistance, the verification method of prior art is all that i.e. incision fusion tube detects by an unaided eye, and this mode is not only using by the way of more traditional
Effect is poor, and the result verified is very unreliable.
The content of the invention
The technical problem to be solved in the present invention is:In order to overcome the deficiencies in the prior art, there is provided a kind of built-in type fusion tube
Verification method.
The technical solution adopted for the present invention to solve the technical problems is:A kind of verification method of built-in type fusion tube, including
Following steps;
1) inspect by random samples:Sampling observation ratio is 1:500, i.e., extract 1 out from 500 built-in type fusion tubes and tested;
2) low-temperature test:Fusion tube is placed in screened room, the indoor temperature of shielding is adjusted, by temperature setting at -25 DEG C,
Fusion tube is lowered the temperature, the persistent period is 60-70 minutes;
3) first time room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
4) high temperature test:By the indoor temperature setting of shielding at 90 DEG C, fusion tube is heated, the persistent period is 60-70
Minute;
5) second room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
6) circulation carries out step 1)-step 5) process 2-3 time;
7) sealing test:Helium is poured in fusion tube, sealing is kept for 20-30 minutes, is examined by helium inspection of hermetic seal equipment
Test the sealing of fusion tube;
8) resistance measurement:One fuse base and a false fuse are installed on fusion tube, by electric resistance measuring apparatus
The value of the contact resistance of measurement fusion tube.
9) approved sample:Retain continuous 5 samplings, seal 5 weeks up for safekeeping.
Preferably, the ceiling temperature of the screened room is 110 DEG C, the lower limit temperature of the screened room is -30 DEG C.
As preferential, step 1) in, it is minimum to be sampled as 1 according to 500 calculating if fusion tube insufficient total amount 500
Root.
Preferably, step 3) in, ambient temperature is current environmental temperature, is defined by thermometer measure.
Preferably, step 8) in, acceptable false fuse is with the resistance maximum scale value of target fusion tube:410μ
Ω:35μΩ.
Preferably, step 9) in, less than 5 samplings, then sealed up for safekeeping according to actual test sample size.
The invention has the beneficial effects as follows, the verification method flow scheme design of the built-in type fusion tube is reasonable, it would be desirable to test it is molten
Pipe continuance test under high and low temperature environment, and temperature difference rotation is realized, then sealing propertytest being carried out with helium, whole process is all
That validation test is carried out to it using equipment, the data for measuring more accurately and reliably, and in this way, to its sealing
Tested with contact resistance so that the total quality of fusion tube has higher reference.
Specific embodiment
Embodiment 1:
A kind of verification method of built-in type fusion tube, comprises the following steps;
1) inspect by random samples:Sampling observation ratio is 1:500, i.e., extract 1 out from 500 built-in type fusion tubes and tested;
2) low-temperature test:Fusion tube is placed in screened room, the indoor temperature of shielding is adjusted, by temperature setting at -25 DEG C,
Fusion tube is lowered the temperature, the persistent period is 60 minutes;
3) first time room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
4) high temperature test:By the indoor temperature setting of shielding at 90 DEG C, fusion tube is heated, the persistent period is 60 points
Clock;
5) second room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
6) circulation carries out step 1)-step 5) process 2 times;
7) sealing test:Helium is poured in fusion tube, sealing is kept for 20 minutes, molten by the unit check of helium inspection of hermetic seal
The sealing of pipe;
8) resistance measurement:One fuse base and a false fuse are installed on fusion tube, by electric resistance measuring apparatus
The value of the contact resistance of measurement fusion tube.
9) approved sample:Retain continuous 5 samplings, seal 5 weeks up for safekeeping.
Preferably, the ceiling temperature of the screened room is 110 DEG C, the lower limit temperature of the screened room is -30 DEG C.
As preferential, step 1) in, it is minimum to be sampled as 1 according to 500 calculating if fusion tube insufficient total amount 500
Root.
Preferably, step 3) in, ambient temperature is current environmental temperature, is defined by thermometer measure.
Preferably, step 8) in, acceptable false fuse is with the resistance maximum scale value of target fusion tube:410μ
Ω:35μΩ.
Preferably, step 9) in, less than 5 samplings, then sealed up for safekeeping according to actual test sample size.
Embodiment 2:
A kind of verification method of built-in type fusion tube, comprises the following steps;
1) inspect by random samples:Sampling observation ratio is 1:500, i.e., extract 1 out from 500 built-in type fusion tubes and tested;
2) low-temperature test:Fusion tube is placed in screened room, the indoor temperature of shielding is adjusted, by temperature setting at -25 DEG C,
Fusion tube is lowered the temperature, the persistent period is 70 minutes;
3) first time room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
4) high temperature test:By the indoor temperature setting of shielding at 90 DEG C, fusion tube is heated, the persistent period is 70 points
Clock;
5) second room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches environment
Temperature;
6) circulation carries out step 1)-step 5) process 3 times;
7) sealing test:Helium is poured in fusion tube, sealing is kept for 30 minutes, molten by the unit check of helium inspection of hermetic seal
The sealing of pipe;
8) resistance measurement:One fuse base and a false fuse are installed on fusion tube, by electric resistance measuring apparatus
The value of the contact resistance of measurement fusion tube.
9) approved sample:Retain continuous 5 samplings, seal 5 weeks up for safekeeping.
Preferably, the ceiling temperature of the screened room is 110 DEG C, the lower limit temperature of the screened room is -30 DEG C.
As preferential, step 1) in, it is minimum to be sampled as 1 according to 500 calculating if fusion tube insufficient total amount 500
Root.
Preferably, step 3) in, ambient temperature is current environmental temperature, is defined by thermometer measure.
Preferably, step 8) in, acceptable false fuse is with the resistance maximum scale value of target fusion tube:410μ
Ω:35μΩ.
Preferably, step 9) in, less than 5 samplings, then sealed up for safekeeping according to actual test sample size.
Compared with prior art, the verification method flow scheme design of the built-in type fusion tube is reasonable, it would be desirable to which the fusion tube of test exists
Continuance test under high and low temperature environment, and temperature difference rotation is realized, then sealing propertytest being carried out with helium, whole process is all adopted
Validation test is carried out to it with equipment, the data for measuring more accurately and reliably, and in this way, to its sealing and connect
Electric shock resistance is tested so that the total quality of fusion tube has higher reference.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Entirely various change and modification can be carried out in the range of without departing from this invention technological thought.The technology of this invention
Property scope is not limited to the content in description, it is necessary to its technical scope is determined according to right.
Claims (6)
1. a kind of verification method of built-in type fusion tube, it is characterised in that comprise the following steps;
1) inspect by random samples:Sampling observation ratio is 1:500, i.e., extract 1 out from 500 built-in type fusion tubes and tested;
2) low-temperature test:Fusion tube is placed in screened room, the indoor temperature of shielding is adjusted, by temperature setting at -25 DEG C, to molten
Pipe is lowered the temperature, and the persistent period is 60-70 minutes;
3) first time room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches ambient temperature;
4) high temperature test:By the indoor temperature setting of shielding at 90 DEG C, fusion tube is heated, the persistent period is 60-70 minutes;
5) second room temperature recovers:By the indoor temperature adjustment of shielding to ambient temperature, the temperature for making fusion tube reaches ambient temperature;
6) circulation carries out step 1)-step 5) process 2-3 time;
7) sealing test:Helium is poured in fusion tube, sealing is kept for 20-30 minutes, molten by the unit check of helium inspection of hermetic seal
The sealing of pipe;
8) resistance measurement:One fuse base and a false fuse are installed on fusion tube, are measured by electric resistance measuring apparatus
The value of the contact resistance of fusion tube.
9) approved sample:Retain continuous 5 samplings, seal 5 weeks up for safekeeping.
2. the verification method of built-in type fusion tube as claimed in claim 1, it is characterised in that the ceiling temperature of the screened room is
110 DEG C, the lower limit temperature of the screened room is -30 DEG C.
3. the verification method of built-in type fusion tube as claimed in claim 1, it is characterised in that step 1) in, if fusion tube total amount
It is less than 500, then minimum to be sampled as 1 according to 500 calculating.
4. the verification method of built-in type fusion tube as claimed in claim 1, it is characterised in that step 3) in, ambient temperature is to work as
Front ambient temperature, is defined by thermometer measure.
5. the verification method of built-in type fusion tube as claimed in claim 1, it is characterised in that step 8) in, acceptable false fusion
Disconnected device is with the resistance maximum scale value of target fusion tube:410μΩ:35μΩ.
6. the verification method of built-in type fusion tube as claimed in claim 1, it is characterised in that step 9) in, less than 5 samplings,
Then sealed up for safekeeping according to actual test sample size.
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CN201611227639.9A CN106597172A (en) | 2016-12-27 | 2016-12-27 | Pre-embedded fusion tube verifying method |
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CN201611227639.9A CN106597172A (en) | 2016-12-27 | 2016-12-27 | Pre-embedded fusion tube verifying method |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101140195A (en) * | 2006-09-06 | 2008-03-12 | 气体运输技术公司 | Tightness testing method, specimen and test bench |
CN102607979A (en) * | 2012-03-30 | 2012-07-25 | 扬州大学 | Vacuum glass thermal cycling fatigue test device |
CN103065901A (en) * | 2012-12-21 | 2013-04-24 | 上海电器陶瓷厂有限公司 | Fusion tube used for fuse protector |
CN103969547A (en) * | 2013-11-19 | 2014-08-06 | 上海诚意电气有限公司 | 10kV drop-out fuse online monitoring system |
CN104677552A (en) * | 2013-11-26 | 2015-06-03 | 海洋王(东莞)照明科技有限公司 | Sealing ring sealing performance testing method |
CN205427143U (en) * | 2016-01-29 | 2016-08-03 | 芜湖赛宝信息产业技术研究院有限公司 | Take high -low -temperature thermal -humidity test box of super temperature fusing fault detection device |
CN205828339U (en) * | 2016-06-30 | 2016-12-21 | 上海诚意电气有限公司 | Fuse and fusing detection device for power circuit |
-
2016
- 2016-12-27 CN CN201611227639.9A patent/CN106597172A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101140195A (en) * | 2006-09-06 | 2008-03-12 | 气体运输技术公司 | Tightness testing method, specimen and test bench |
CN102607979A (en) * | 2012-03-30 | 2012-07-25 | 扬州大学 | Vacuum glass thermal cycling fatigue test device |
CN103065901A (en) * | 2012-12-21 | 2013-04-24 | 上海电器陶瓷厂有限公司 | Fusion tube used for fuse protector |
CN103969547A (en) * | 2013-11-19 | 2014-08-06 | 上海诚意电气有限公司 | 10kV drop-out fuse online monitoring system |
CN104677552A (en) * | 2013-11-26 | 2015-06-03 | 海洋王(东莞)照明科技有限公司 | Sealing ring sealing performance testing method |
CN205427143U (en) * | 2016-01-29 | 2016-08-03 | 芜湖赛宝信息产业技术研究院有限公司 | Take high -low -temperature thermal -humidity test box of super temperature fusing fault detection device |
CN205828339U (en) * | 2016-06-30 | 2016-12-21 | 上海诚意电气有限公司 | Fuse and fusing detection device for power circuit |
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Application publication date: 20170426 |