CN105352681A - No-clean welding seam detection method used for bent electronic pipe fittings - Google Patents
No-clean welding seam detection method used for bent electronic pipe fittings Download PDFInfo
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- CN105352681A CN105352681A CN201510740395.3A CN201510740395A CN105352681A CN 105352681 A CN105352681 A CN 105352681A CN 201510740395 A CN201510740395 A CN 201510740395A CN 105352681 A CN105352681 A CN 105352681A
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- pipe fitting
- alcohol
- vacuum
- detecting platform
- bending
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2884—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for welds
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a no-clean welding seam detection method used for a bent electronic pipe fitting. The no-clean welding seam detection method comprises a vacuum detection stand, wherein the vacuum detection stand is equipped with a mobile base, a stand column is arranged on the mobile base, and a supporting disc which can move up and down along the stand column is installed on the stand column through a locking pin; an alcohol storage box is arranged on the vacuum detection stand, and an injector is equipped on the alcohol storage box. According to the no-clean welding seam detection method, the injector is used for extracting alcohol in the alcohol storage box and injecting the alcohol to a sealed end of the pipe fitting, so that the sealed end is covered with alcohol, then the vacuum detection stand is used for conducting vacuum extraction, if the alcohol at the sealed end does not disappear obviously and quickly, then the sealing is proved to be good, and if the alcohol disappears quickly, then the sealing is shown to be defective, thereby adjusting the sealed end.
Description
Technical field
The present invention relates to the inspection field of electronics pipe fitting, be specifically related to a kind of No clean weld inspection method for bending electron-like pipe fitting.
Background technology
In welded structure is produced, the weldquality obtained due to current used solder technology not yet reaches enough stability, thus for ensureing the quality of weld assembly, quality inspection must be carried out by butt welded seam, guaranteeing that weld seam meets the technical requirement of defined and the safe handling of structure.The inspection of weld seam divides nondestructive test and the large class of destructive test two.Usually aborning weld seam verify as nondestructive test, as visual test, compactness inspection etc.
The visual test of weld seam has two contents.
One, Weld Profiles inspection: Weld Profiles inspection adopts survey instrument butt welded seam physical dimension to detect, it comprises every shaping indexs such as checking the flatness of the flatness of the width of weld seam, height and weld seam, welding ripple and whether reaches technical requirement; Face of weld quality inspection: face of weld quality inspection is with visual or check with 5 ~ 10 times of magnifier butt welded seam surfaces, observes face of weld and whether there is the weld defects such as undercut, overlap, lack of penetration, arc crater and surface pores, slag inclusion, crackle.
Two, the densification inspection of weld seam: the container of various storage liquid or gas and pressure vessel, as the component such as boiler, pipeline, the compactness of butt welded seam has certain technical requirement.For guaranteeing the security of operation of component, must carry out seal (tightness)test by butt welded seam, the conventional weld seam compactness method of inspection has the hydraulic testing, gas pressure test or kerosine test etc. three kinds:
1 hydraulic testing: the hydraulic testing is applicable to check the compactness of weld seam and intensity, and its test method has two kinds: a kind of is seal (tightness)test for open containers, to fill container with water at ambient pressure or part is poured water, not additonal pressure, the compactness of inspection weld seam; Another kind is filled by container with water, and on closed container, institute is porose, improves make a strength test with the hydraulic pressure in pump handle container, usual test pressure be working pressure doubly, and continue for some time at this pressure, then Pressure Drop to the working pressure of container, carry out densification test.With hand hammer apart from commissure, knock gently along bead direction, if find, weld seam has water droplet or thin water wave to occur, then illustrate that weld seam is not fine and close.
2 gas pressure tests: gas pressure test passes in closed container by pressurized air, smears suds at face of weld, when weld seam has penetrability defect, the gas in container will be overflowed from these defects, and suds are bubbled, and is defect place herein.The test of a kind of ammonia is also had in gas pressure test, this test method is in closed container, pass into the gas containing 10% ammonia, a mercuric nitrate solution test paper slightly wider than weld seam is sticked in container outer wall commissure, if there is leakage in container welding somewhere, then in this place's test paper, mercuric nitrate solution and ammonia generation chemical reaction present black splotch, have penetrability defect to show this place.Gas pressure test is generally used for some pipes or the inspection of small-sized pressure-vessel.
3 kerosine tests: kerosine test is coated with in the one side of weld seam to spread whiting aqueous solution, kerosene is coated with at the another side of weld seam, if there is the defects such as trickle crackle or penetrable pores in weld seam, kerosene can form obvious oil mark in infiltrate gap on whiting, thus determines weld defect Wei Ge.During test, in order to correctly determine that the size of defect is with Wei Ge, should observe immediately after painting kerosene, when there is oil mark, defect area will be marked in time, otherwise expand along with the prolongation oil mark of time, cause error in judgement to strengthen.If do not find oil mark point yet through 5min, then weld seam compactness is qualified.Kerosine test is used for the seal (tightness)test of non-pressure vessel.With the development of experimental technique, special bleeding agent and developer can also be used now to carry out seal (tightness)test, bring great convenience to test operation.
Current detection device and method are not all suitable for the detection of electronics pipe fitting, and therefore the weld seam detection of electronics pipe fitting still adopts prior art to detect, and cause time length, inefficient problem.
Summary of the invention
The object of the present invention is to provide a kind of No clean weld inspection method for bending electron-like pipe fitting, solve the problem not being applicable to electronics pipe fitting welding quality inspection at present.
Of the present inventionly to be achieved through the following technical solutions:
A kind of No clean weld inspection method for bending electron-like pipe fitting, comprise a vacuum detecting platform, vacuum detecting platform is connected with a check-out console face by closing telescopic mouth, check-out console face is provided with an aspirating hole be communicated with the inner vacuum of vacuum detecting platform; Also comprise a counter weight base, counter weight base is provided with a support bar, support bar is provided with a fixed body that can move up and down along support bar, fixed body is provided with a Top Crossbeam and a lower cross arm, Top Crossbeam is provided with an orienting lug, orienting lug is provided with gathering sill, lower cross arm is connected with a clamping device, a movable base is configured with at described vacuum detecting platform, movable base is provided with column, column is provided with a supporting disk that can move up and down along column by lock pin; Described vacuum detecting platform is also provided with an alcohol storage box, alcohol storage box is configured with a syringe.In use, be first arranged on by electronics pipe fitting to be measured and detect on panel, its one end is communicated with aspirating hole, and the other end of pipe fitting is sealed by a rubber cushion blocks pick-up unit of the present invention, lower cross arm is fixed pipe fitting, Top Crossbeam guides pipe fitting, support, then the alcohol in syringe extraction alcohol case is utilized, and be injected at the sealed end of pipe fitting, make sealed end all cover by alcohol, then vacuum detecting platform carries out vacuum drawn, if the alcohol narrow eyes into a slit of sealed end has obviously, disappear fast, prove good seal, if there is alcohol quick disappearance, this illustrates sealing existing defects, thus carry out the adjustment of sealed end, avoid because mistake appears in the sealing property of sealed end, the pipe fitting caused detects and occurs mistake, namely avoid in defective pipe fitting and occur owing to sealing the defective wrong conclusion caused, utilize the effumability of alcohol simultaneously, after detection, volatilization that can be very fast, tube surface can't be remained in, if adopt grease to seal, cleaning process repeatedly can be there is, and the volatility of alcohol determines and does not need to clean, appoint the clean of right holding workpiece surface, a movable base is configured with at vacuum detecting platform, movable base is provided with column, column is provided with a supporting disk that can move up and down along column by lock pin, the middle part of bending pipe fitting is placed on supporting disk, as the 3rd strong point of bending pipe fitting, the bending pipe fitting of any character structure can be made all can to realize the detection of weld seam, then vacuum detecting platform carries out vacuum drawn, the end of pipe fitting has rubber cushion blocks to seal, its inside is communicated with the vacuum of vacuum detecting platform, then scanning weld seam, gas leakage is then that weld seam is defective, and air tight is then weld is accepted, so, weld seam detection can be carried out to multiple electronics pipe fitting, be specially adapted to the test of electronics pipe fitting, there is the characteristics and advantages that speed is fast, reproducible, reliability is high.
Described clamping device comprises a rectangular box, and rectangular box is connected on lower cross arm by a rotating shaft, and rectangular box is provided with a fastening bolt.Specifically, electronics pipe fitting is through after rectangular box, and by carrying out fastening clamp through bolt, rectangular box is arranged on lower cross arm by rotating shaft, goes for the detection of various bending, non-linear pipeline.
Described fixed body is arranged on support bar by tightening knob.By the setting of tightening knob, the height of fixed body can be changed, thus be applicable to the electronics pipe fitting of different length.
Described check-out console face is provided with one deck rubber blanket.By arranging rubber blanket on check-out console face, the end face of electronics pipe fitting can be made to form sealing, avoiding because the bad weld seam fault erroneous judgement caused of port sealing.
The present invention compared with prior art, has following advantage and beneficial effect:
A kind of No clean weld inspection method for bending electron-like pipe fitting of 1 the present invention, utilize the alcohol in syringe extraction alcohol case, and be injected at the sealed end of pipe fitting, make sealed end all cover by alcohol, then vacuum detecting platform carries out vacuum drawn, if the alcohol narrow eyes into a slit of sealed end has obviously, disappear fast, prove good seal, if there is alcohol quick disappearance, this illustrates sealing existing defects, thus carry out the adjustment of sealed end, avoid because mistake appears in the sealing property of sealed end, the pipe fitting caused detects and occurs mistake, namely avoid in defective pipe fitting and occur owing to sealing the defective wrong conclusion caused, utilize the effumability of alcohol simultaneously, after detection, volatilization that can be very fast, tube surface can't be remained in, if adopt grease to seal, cleaning process repeatedly can be there is, and the volatility of alcohol determines and does not need to clean, appoint the clean of right holding workpiece surface, be configured with a movable base at vacuum detecting platform, movable base is provided with column, column is provided with a supporting disk that can move up and down along column by lock pin,
A kind of No clean weld inspection method for bending electron-like pipe fitting of 2 the present invention, be arranged on by electronics pipe fitting to be measured and detect on panel, its one end is communicated with aspirating hole, and the other end of pipe fitting is sealed by a rubber cushion blocks; Lower cross arm is fixed pipe fitting, Top Crossbeam guides pipe fitting, support, and then vacuum detecting platform carries out vacuum drawn, and the end of pipe fitting has rubber cushion blocks to seal, its inside is communicated with the vacuum of vacuum detecting platform, then scanning weld seam, gas leakage is then that weld seam is defective, and air tight is then weld is accepted, so, weld seam detection can be carried out to multiple electronics pipe fitting, be specially adapted to the test of electronics pipe fitting, there is the characteristics and advantages that speed is fast, reproducible, reliability is high; The middle part of bending pipe fitting is placed on supporting disk, as the 3rd strong point of bending pipe fitting, the bending pipe fitting of any character structure can be made all can to realize the detection of weld seam, greatly expanded the sensing range of electronics pipe fitting;
A kind of No clean weld inspection method for bending electron-like pipe fitting of 3 the present invention, by arranging rubber blanket on check-out console face, can make the end face of electronics pipe fitting form sealing, avoids because the bad weld seam fault erroneous judgement caused of port sealing.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing:
1-vacuum detecting platform, 2-closes telescopic mouth, 3-check-out console face, 4-aspirating hole, 5-counter weight base, 6-support bar, 7-fixed body, 8-Top Crossbeam, 9-lower cross arm, 10-orienting lug, 11-rectangular box, 12-rotating shaft, 13-fastening bolt, 14-tightening knob, 15-rubber blanket, 16-movable base, 17-column, 18-supporting disk, 19-lock pin, 23-alcohol storage box, 24-syringe.
Embodiment
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment
As shown in Figure 1, a kind of No clean weld inspection method for bending electron-like pipe fitting, comprise a vacuum detecting platform 1, vacuum detecting platform 1 is connected with a check-out console face 3 by closing telescopic mouth 2, check-out console face 3 is provided with one deck rubber blanket 15, rubber blanket 15 and check-out console face 3 are provided with an aspirating hole 4 be communicated with the inner vacuum of vacuum detecting platform 1; Also comprise a counter weight base 5, counter weight base 5 is provided with a support bar 6, support bar 6 is provided with a fixed body 7 that can move up and down along support bar 6, and fixed body 7 is arranged on support bar 6 by tightening knob 14; Fixed body 7 is provided with a Top Crossbeam 8 and a lower cross arm 9, Top Crossbeam 8 is provided with an orienting lug 10, orienting lug 10 is provided with gathering sill, lower cross arm 9 is connected with a clamping device: comprise a rectangular box 11, rectangular box 11 is connected on lower cross arm 9 by a rotating shaft 12, and rectangular box 11 is provided with a fastening bolt 13; A movable base 16 is configured with at vacuum detecting platform 1, movable base 16 is provided with column 17, column 17 is provided with a supporting disk 18 that can move up and down along column 17 by lock pin 19, the middle part of bending pipe fitting is placed on supporting disk 18, as the 3rd strong point of bending pipe fitting, the bending pipe fitting of any character structure can be made all can to realize the detection of weld seam; Vacuum detecting platform 1 is also provided with an alcohol storage box 23, alcohol storage box 23 is configured with a syringe 24, first be arranged on by electronics pipe fitting to be measured and detect on panel 3, its one end is communicated with aspirating hole 4, and the other end of pipe fitting is sealed by a rubber cushion blocks; Lower cross arm 9 pairs of pipe fittings are fixed, Top Crossbeam 8 pairs of pipe fittings guide, support, then utilize syringe 24 to extract alcohol in alcohol case 23, and be injected at the sealed end of pipe fitting, make sealed end all cover by alcohol, then vacuum detecting platform carries out vacuum drawn, if the alcohol narrow eyes into a slit of sealed end has obviously, fast disappear, prove good seal, if there is alcohol quick disappearance, this illustrates sealing existing defects, thus carries out the adjustment of sealed end.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the No clean weld inspection method for bending electron-like pipe fitting, it is characterized in that: comprise a vacuum detecting platform (1), vacuum detecting platform (1) is connected with a check-out console face (3) by closed telescopic mouth (2), check-out console face (3) are provided with an aspirating hole (4) be communicated with the inner vacuum of vacuum detecting platform (1), also comprise a counter weight base (5), counter weight base (5) is provided with a support bar (6), support bar (6) is provided with a fixed body (7) that can move up and down along support bar (6), fixed body (7) is provided with a Top Crossbeam (8) and a lower cross arm (9), Top Crossbeam (8) is provided with an orienting lug (10), orienting lug (10) is provided with gathering sill, lower cross arm (9) is connected with a clamping device, a movable base (16) is configured with described vacuum detecting platform (1), movable base (16) is provided with column (17), column (17) is provided with a supporting disk (18) that can move up and down along column (17) by lock pin (19), described vacuum detecting platform (1) is also provided with an alcohol storage box (23), alcohol storage box (23) is configured with a syringe (24), first electronics pipe fitting to be measured is arranged on and detects on panel, its one end is communicated with aspirating hole, and the other end of pipe fitting is sealed by a rubber cushion blocks, lower cross arm is fixed pipe fitting, Top Crossbeam guides pipe fitting, support, then the alcohol in syringe extraction alcohol case is utilized, and be injected at the sealed end of pipe fitting, make sealed end all cover by alcohol, then vacuum detecting platform carries out vacuum drawn, if the alcohol narrow eyes into a slit of sealed end has obviously, disappear fast, prove good seal, if there is alcohol quick disappearance, this illustrates sealing existing defects, thus carry out the adjustment of sealed end, the middle part of bending pipe fitting is placed on supporting disk, as the 3rd strong point of bending pipe fitting, the bending pipe fitting of any character structure can be made all can to realize the detection of weld seam, then vacuum detecting platform carries out vacuum drawn, and the end of pipe fitting has rubber cushion blocks to seal, and its inside is communicated with the vacuum of vacuum detecting platform, then scanning weld seam, and gas leakage is then that weld seam is defective, and air tight is then weld is accepted.
2. a kind of No clean weld inspection method for bending electron-like pipe fitting according to claim 1, it is characterized in that: described clamping device comprises a rectangular box (11), rectangular box (11) is connected on lower cross arm (9) by a rotating shaft (12), and rectangular box (11) is provided with a fastening bolt (13).
3. a kind of No clean weld inspection method for bending electron-like pipe fitting according to claim 1, is characterized in that: described fixed body (7) is arranged on support bar (6) by tightening knob (14).
4. a kind of No clean weld inspection method for bending electron-like pipe fitting as claimed in any of claims 1 to 3, is characterized in that: on described check-out console face (3), be provided with one deck rubber blanket (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740395.3A CN105352681A (en) | 2015-11-04 | 2015-11-04 | No-clean welding seam detection method used for bent electronic pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740395.3A CN105352681A (en) | 2015-11-04 | 2015-11-04 | No-clean welding seam detection method used for bent electronic pipe fittings |
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| CN105352681A true CN105352681A (en) | 2016-02-24 |
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| CN201510740395.3A Pending CN105352681A (en) | 2015-11-04 | 2015-11-04 | No-clean welding seam detection method used for bent electronic pipe fittings |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300620A (en) * | 1997-04-23 | 1998-11-13 | Hitachi Ltd | Leak detector for lining tank |
| CN201628534U (en) * | 2010-03-10 | 2010-11-10 | 彩虹集团公司 | Concentricity measuring device for exhaust pipe after sealing |
| CN203400741U (en) * | 2013-08-13 | 2014-01-22 | 海宁胜晖化学工业有限公司 | Test tube fixing support of magnetic stirrer |
| CN104142216A (en) * | 2014-08-04 | 2014-11-12 | 无锡日联科技有限公司 | Novel vacuum micro-leakage detection method |
-
2015
- 2015-11-04 CN CN201510740395.3A patent/CN105352681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300620A (en) * | 1997-04-23 | 1998-11-13 | Hitachi Ltd | Leak detector for lining tank |
| CN201628534U (en) * | 2010-03-10 | 2010-11-10 | 彩虹集团公司 | Concentricity measuring device for exhaust pipe after sealing |
| CN203400741U (en) * | 2013-08-13 | 2014-01-22 | 海宁胜晖化学工业有限公司 | Test tube fixing support of magnetic stirrer |
| CN104142216A (en) * | 2014-08-04 | 2014-11-12 | 无锡日联科技有限公司 | Novel vacuum micro-leakage detection method |
Non-Patent Citations (1)
| Title |
|---|
| 潘长华: "真空设备泄漏简易判断法", 《烟草科技》 * |
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Application publication date: 20160224 |
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