CN109655348A - Oil cooler pipe defect inspection method - Google Patents
Oil cooler pipe defect inspection method Download PDFInfo
- Publication number
- CN109655348A CN109655348A CN201811495541.0A CN201811495541A CN109655348A CN 109655348 A CN109655348 A CN 109655348A CN 201811495541 A CN201811495541 A CN 201811495541A CN 109655348 A CN109655348 A CN 109655348A
- Authority
- CN
- China
- Prior art keywords
- pipe
- oil cooler
- defect inspection
- inspection method
- protruding part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 30
- 230000007547 defect Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of oil cooler pipe defect inspection method, for solving the problems, such as oil cooler pipe defects detection in the prior art.The present invention provides a kind of oil cooler pipe defect inspection method, the oil cooler includes pipe and the fin between pipe, the fin is welded on the pipe, the oil cooler pipe defect inspection method includes: sealing pressing step, by the pipe sealing, and highly pressurised liquid or gas are filled with into the pipe；Detecting step is expanded, detects whether the pipe expands.Leakage problem when effectively oil cooler being avoided to use.
Description
Technical field
The present invention relates to a kind of radiator fields, more particularly to a kind of oil cooler pipe defect inspection method.
Background technique
After traditional airtight inspection of oil cooler, do not implement tube expansion inspection in factory, directly results in tube expansion deformation and produce
Product flow to market, and operation a period of time product leakage leads to engine high-temperature after being assembled on equipment (such as excavator).
The inner fin and tube interior of oil cooler are removed, and poor attachment is caused；Excavator is in working condition by oil liquid pressure
The influence of power causes rupture at oil cooler tube expansion to be sewed.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of oil cooler pipe defects detections
Method, for solving the problems, such as oil cooler pipe defects detection in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of oil cooler pipe defect inspection method, institute
Stating oil cooler includes pipe and the fin between pipe, and the fin is welded on the pipe, the oil cooler pipe
Defect inspection method includes:
Sealing pressing step,
By the pipe sealing, and highly pressurised liquid or gas are filled with into the pipe；
Detecting step is expanded,
Detect whether the pipe expands.
Optionally, the expansion detecting step includes the following steps:
The junction for being pointed into the pipe and the fin is used up, judges whether the light passes through the oil cooler.
Optionally, observe by the naked eye whether the light passes through the oil cooler.
Optionally, detect whether the light passes through the oil cooler by photosensitive sensor.
Optionally, judge whether the light passes through the oil cooler by comparison of taking pictures.
Optionally, the expansion detecting step includes the following steps:
The wall thickness of the pipe is detected by cubing.
Optionally, the cubing includes the first protruding part and the second protruding part, first protruding part and described second convex
It is arranged in parallel between part out, interval is equipped between first protruding part and second protruding part, the interval can accommodate
The side wall of the undeformed pipe, when detecting, first protruding part and second protruding part are located at the pipe
In the pipe of son and pipe is outer.
Optionally, the width at the interval is 0.01m bigger than the sidewall thickness.
Optionally, the length of first protruding part is more than or equal to the depth of the pipe, second protruding part
Length be more than or equal to the pipe depth.
Optionally, the end of first protruding part and second protruding part is equipped with guide frame.
As described above, oil cooler pipe defect inspection method of the invention, at least has the advantages that
By the defect inspection of oil cooler pipe, applies high pressure to it, and detect by a variety of methods, effectively avoid
The problem of oil cooler rupture is sewed when in use.
Detailed description of the invention
Fig. 1 is shown as the schematic diagram of oil cooler pipe defect inspection method of the invention.
Fig. 2 is shown as the schematic diagram of cubing of the invention.
Component label instructions
1 oil cooler
11 pipes
12 fins
2 light
3 naked eyes
4 cubings
41 first protruding parts
42 second protruding parts
43 intervals
44 guide frames
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Please refer to Fig. 1.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification is not intended to limit the invention enforceable so that those skilled in the art understands and reads
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
It does not influence still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Each embodiment is only for the purpose of illustration below.Between each embodiment, it can be combined, not only limit
In the content that following single embodiment shows.
Referring to Fig. 1, the present invention provides a kind of oil cooler pipe defect inspection method, the oil cooler 1 in the present embodiment
Fin 12 including pipe 11 and between pipe 11, the fin 12 are welded on the pipe 11, the oil cooler 1
11 defect inspection method of pipe includes:
Sealing pressing step,
The pipe 11 is sealed, and is filled with highly pressurised liquid or gas into the pipe 11；Its pressure range is
Between 2.0MPa to 3.0MPa.
Detecting step is expanded,
Detect whether the pipe 11 expands.
Before the assembly of oil cooler 1, oil cooler 1 is detected, highly pressurised liquid or gas are filled with, on the one hand can be examined
Whether have leakage defect, furthermore it is also possible to detect to the high-voltage resistance capability of oil cooler 1, high pressure step if measuring inside pipe 11
After the completion of rapid, whether detection pipe 11 expands, undesirable if expansion.
Referring to Fig. 1, the expansion detecting step includes the following steps: in the present embodiment
It is pointed into the junction of the pipe 11 and the fin 12 with light 2, judges whether the light 2 passes through the oil cooler
1。
If pipe 11 expands, the junction of pipe 11 and fin 12 if, will appear crack, then light 2 can be through splitting
Seam, this product are unqualified.
Referring to Fig. 1, whether passing through the oil cooler 1 by 3 observation of the naked eyes light 2 in the present embodiment.
Referring to Fig. 1, detecting whether the light 2 passes through the oil cooler 1 by photosensitive sensor in the present embodiment.Light
Dependent sensor needs to be placed in dark environment, if then for light 2 according to across oil cooler 1, photosensitive sensor receives light 2,
Electric signal is issued, can be realized automatic detection, improves working efficiency.
Referring to Fig. 1, judging whether the light 2 passes through the oil cooler 1 by comparison of taking pictures in the present embodiment.
If passing through oil cooler 1, the place passed through has speck, can determine whether by comparison, is also beneficial to realize automatic
The judgement of change.
Referring to Fig. 1, the expansion detecting step includes the following steps: in the present embodiment
The wall thickness of the pipe 11 is detected by cubing 4.
By directly detecting the wall thickness of pipe 11, avoid that there is a situation where missing inspections.Especially after the expansion of pipe 11, such as
There is not crack in fruit pipe 11 and 12 junction of fin, by the direct detection of the wall thickness to pipe 11, effectively exclude to have
The oil cooler 1 of such situation.
Referring to Fig. 2, in the present embodiment, the cubing 4 includes the first protruding part 41 and the second protruding part 42, described first
It is arranged in parallel between protruding part 41 and second protruding part 42, between first protruding part 41 and second protruding part 42
Equipped with interval 43, the interval 43 can accommodate the side wall of the undeformed pipe 11, when detecting, first protruding part
41 and second protruding part 42 is located in the pipe of the pipe 11 and pipe is outer.
When pipe 11 expands, the interval 43 is not enough to accommodate tube wall, then cubing 4 can not be from the end of pipe 11
It is inserted into deeper depth.It, can be with since pipe 11 only has side and fin 12 to weld, therefore in the part that pipe 11 does not weld
By circumferential mobile cubing 4, the swelling state inspection of different location is realized.
In the present embodiment, the width at the interval 43 is 0.01m bigger than the sidewall thickness.
So as to cover upper side wall, and avoid gap excessive the case where can not detecting dilation transformation.
In the present embodiment, the length of first protruding part 41 is more than or equal to the depth of the pipe 11, and described the
The length of two protruding parts 42 is more than or equal to the depth of the pipe 11.
The entire depth of pipe 11 can be detected, accuracy rate is higher.
Referring to Fig. 1, the end of first protruding part 41 and second protruding part 42 is equipped with guiding in the present embodiment
Structure 44.Guide frame 44 is inclined-plane, and two inclined-planes form bell-mouth structure of air.
By the way that guide frame 44 is arranged, so that cubing 4 is more easier when being inserted into 11 inside of pipe.
In conclusion the present invention passes through the defect inspection of 1 pipe 11 of oil cooler, apply high pressure to it, and pass through a variety of sides
Method detection effectively avoids the problem of rupture of oil cooler 1 is sewed when in use.Pass through 2 detecting step of light transmission and wall thickness detection
The combination of step, avoids missing inspection, effectively rejects defective product, so that reliability is higher when product uses.So this hair
It is bright effectively to overcome various shortcoming in the prior art and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of oil cooler pipe defect inspection method, the oil cooler includes pipe and the fin between pipe, described
Fin is welded on the pipe, which is characterized in that the oil cooler pipe defect inspection method includes:
Sealing pressing step,
By the pipe sealing, and highly pressurised liquid or gas are filled with into the pipe；
Detecting step is expanded,
Detect whether the pipe expands.
2. oil cooler pipe defect inspection method according to claim 1, it is characterised in that: the expansion detecting step packet
Include following steps:
The junction for being pointed into the pipe and the fin is used up, judges whether the light passes through the oil cooler.
3. oil cooler pipe defect inspection method according to claim 2, it is characterised in that: observe by the naked eye the light
Whether the oil cooler is passed through.
4. oil cooler pipe defect inspection method according to claim 2, it is characterised in that: detected by photosensitive sensor
Whether the light passes through the oil cooler.
5. oil cooler pipe defect inspection method according to claim 2, it is characterised in that: by taking pictures, comparison judges institute
State whether light passes through the oil cooler.
6. -5 any oil cooler pipe defect inspection method according to claim 1, it is characterised in that: the expansion detection
Step includes the following steps:
The wall thickness of the pipe is detected by cubing.
7. oil cooler pipe defect inspection method according to claim 6, it is characterised in that: the cubing includes first convex
Part and the second protruding part out are arranged in parallel between first protruding part and second protruding part, first protruding part and
Interval is equipped between second protruding part, the interval can accommodate the side wall of the undeformed pipe, when detecting, institute
It states the first protruding part and second protruding part is located in the pipe of the pipe and pipe is outer.
8. oil cooler pipe defect inspection method according to claim 7, it is characterised in that: the width at the interval compares institute
State the big 0.01m of sidewall thickness.
9. oil cooler pipe defect inspection method according to claim 7, it is characterised in that: the length of first protruding part
Degree is more than or equal to the depth of the pipe, and the length of second protruding part is more than or equal to the depth of the pipe.
10. oil cooler pipe defect inspection method according to claim 1, it is characterised in that: first protruding part and
The end of second protruding part is equipped with guide frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495541.0A CN109655348A (en) | 2018-12-07 | 2018-12-07 | Oil cooler pipe defect inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495541.0A CN109655348A (en) | 2018-12-07 | 2018-12-07 | Oil cooler pipe defect inspection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109655348A true CN109655348A (en) | 2019-04-19 |
Family
ID=66113034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811495541.0A Pending CN109655348A (en) | 2018-12-07 | 2018-12-07 | Oil cooler pipe defect inspection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109655348A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250611A (en) * | 2001-02-23 | 2002-09-06 | Mitsubishi Heavy Ind Ltd | Inspection method and device for heat exchanger |
| CN1946982A (en) * | 2004-04-22 | 2007-04-11 | 昭和电工株式会社 | Pressure resistance inspecting method and pressure resistance inspecting apparatus for heat exchangers |
| CN201867380U (en) * | 2010-08-06 | 2011-06-15 | 哈尔滨锅炉厂有限责任公司 | Radiographic detection device for general assembly weld seam of high-pressure heater |
| GB2479572A (en) * | 2010-04-15 | 2011-10-19 | Paul Roderick Hayes Griffin | Thickness guage for measurement of hot metal plate on the procss line |
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN203824479U (en) * | 2014-04-22 | 2014-09-10 | 新兴铸管股份有限公司 | Gauge plate for testing wall thickness of pipe |
-
2018
- 2018-12-07 CN CN201811495541.0A patent/CN109655348A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250611A (en) * | 2001-02-23 | 2002-09-06 | Mitsubishi Heavy Ind Ltd | Inspection method and device for heat exchanger |
| CN1946982A (en) * | 2004-04-22 | 2007-04-11 | 昭和电工株式会社 | Pressure resistance inspecting method and pressure resistance inspecting apparatus for heat exchangers |
| GB2479572A (en) * | 2010-04-15 | 2011-10-19 | Paul Roderick Hayes Griffin | Thickness guage for measurement of hot metal plate on the procss line |
| CN201867380U (en) * | 2010-08-06 | 2011-06-15 | 哈尔滨锅炉厂有限责任公司 | Radiographic detection device for general assembly weld seam of high-pressure heater |
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN203824479U (en) * | 2014-04-22 | 2014-09-10 | 新兴铸管股份有限公司 | Gauge plate for testing wall thickness of pipe |
Non-Patent Citations (1)
| Title |
|---|
| 刘怀玉: "汽车用铝合金油冷器真空钎焊工艺研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |