CN104655513A - Soft pipe head bending reliability detection method - Google Patents
Soft pipe head bending reliability detection method Download PDFInfo
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- CN104655513A CN104655513A CN201310590720.3A CN201310590720A CN104655513A CN 104655513 A CN104655513 A CN 104655513A CN 201310590720 A CN201310590720 A CN 201310590720A CN 104655513 A CN104655513 A CN 104655513A
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- tube head
- reliability
- bending
- flexible pipe
- detection method
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Abstract
The present invention discloses a soft pipe head bending reliability detection method, which comprises: S1, connecting and fixing a soft pipe head to be detected and a corresponding connection pipe; S2, bending the fixed pipe head, and setting an angle; S3, carrying out a cold-hot impact test on the bending pipe head; and S4, after completing the cold-hot impact test, observing the bending position of the pipe head, and judging the bending reliability of the pipe head. According to the soft pipe head bending reliability detection method, the soft pipe to be detected and the corresponding connection pipe are assembled, the bending is performed, the cold-hot impact test is performed, and the pipe head bending position is observed after the test so as to judge the pipe head bending reliability, such that the evaluation on the soft pipe connection head position reliability is achieved, the stability and the reliability of the soft pipe are improved, the condition that the abnormal stream at the soft pipe connection head position flows into the production line and be used is effectively avoided, and the hidden danger of the water leakage of the air conditioner is reduced to a great degree.
Description
Technical field
The present invention relates to detection method, particularly relate to the detection method that a kind of flexible pipe tube head bends reliability.
Background technology
Water drainage pipe of air conditioner generally adopts flexible pipe, requires that it has good bending property and easy sealing property.TPE (Thermoplastic Elastomer) flexible pipe has good bending property and easy sealing property because of it and is used increasingly.This TPE flexible pipe is mainly used in high-lift bending draining, has effectively played the performance of the easy bending of TPE material, but this drainpipe also may lose efficacy because bending for a long time there is the situation of stress.
Do not have relevant detection method can detect the reliability of flexible pipe tube head in current industry, the flexible pipe causing bending property bad like this flows in production line, not only affects product quality, and increases after cost.
Summary of the invention
For above-mentioned prior art present situation, technical matters to be solved by this invention is, a kind of flexible pipe tube head is provided to bend the detection method of reliability, realize assessing flexible pipe tube head bending property, guaranteeing that hose bending performance because causing in starting material, material production process is bad can be effectively identified when carrying out goods, does not flow in production line and uses.
In order to solve the problems of the technologies described above, a kind of flexible pipe tube head provided by the present invention bends the detection method of reliability, comprises the following steps:
S1, the tube head of flexible pipe to be measured to be connected and fixed with corresponding connecting pipe;
S2, by the described tube head bending set angle after fixing;
S3, by bending after described tube head carry out cold shock testing; And
After S4, cold shock testing complete, observe described tube head bending place, judge that described tube head bends reliability.
Wherein in an embodiment, described step S1 is specially:
The tube head of described flexible pipe is socketed on described connecting pipe, then with pipe clamp, both is fixed.
Wherein in an embodiment, in described step S2, described set angle is α, and 160 °≤α≤180 °.
Wherein in an embodiment, α=180 °.
Wherein in an embodiment, in described step S2, prick with line after described tube head bending and described flexible pipe and described connecting pipe are banded together, make described tube head keep bending state always.
Wherein in an embodiment, in described step S3, the temperature of the low-temperature impact of described cold shock testing is-25 DEG C ~ 15 DEG C, the time is 3.5h ~ 4.5h, and the temperature of high temperature impact is 55 DEG C ~ 65 DEG C, the time is 3.5h ~ 4.5h, and cycle index is 18 ~ 25 times.
Wherein in an embodiment, described step S4 is specially:
After having tested, whether observe described tube head bending place and ftracture and/or efflorescence, if not, then described tube head, if so, then described tube head bends poor reliability if bending good reliability.
Wherein in an embodiment, described tube head is made up of TPE material.
Flexible pipe tube head of the present invention bends the detection method of reliability, first flexible pipe to be measured is assembled with corresponding connecting pipe, cold shock testing is carried out again after bending, tube head bending place is observed to judge that described tube head bends reliability after test, thus the assessment achieved hose adapter place reliability, improve stability and the reliability of flexible pipe, and the material that efficiently avoid hose adapter place exception flows into production line use, decreases the hidden danger of leaking air-conditioning to a great extent.
Accompanying drawing explanation
Fig. 1 is the process flow diagram that flexible pipe tube head in one of them embodiment of the present invention bends the detection method of reliability;
Fig. 2 is the structural representation after the tube head bending of flexible pipe to be measured.
Description of reference numerals: 10, flexible pipe; 11, tube head; 20, connecting pipe; 30, pipe clamp; 40, line is pricked.
Embodiment
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
Flexible pipe tube head of the present invention bends the detection method of reliability, first flexible pipe to be measured is assembled with corresponding connecting pipe, carry out cold shock testing after bending again, observe tube head bending place after test to judge that described tube head bends reliability, thus achieve the assessment to hose adapter place reliability.Specific as follows:
Figure 1 shows that the flexible pipe tube head in one of them embodiment of the present invention bends the process flow diagram of the detection method of reliability, the flexible pipe 10 in the present embodiment is air conditioner water draining soft pipe, and the material of tube head 11 is preferably TPE material.Described detection method comprises the following steps:
Step S1, the tube head 11 of flexible pipe 10 to be measured to be connected and fixed with corresponding connecting pipe 20.In order to the practical service environment of the tube head 11 of real simulation flexible pipe 10, tube head 11 is as follows with connecting pipe 20 assembly method: be socketed in by the tube head 11 of flexible pipe 10 on described connecting pipe 20, then both fixed (see Fig. 2) with pipe clamp 30.
S2, the described tube head 11 after fixing is bent set angle.More preferably, described set angle is α, and 160 °≤α≤180 °.Further, α=180 °.More preferably, prick 40 with line after bending and flexible pipe 10 and connecting pipe 20 are banded together (see Fig. 2), make tube head 11 keep bending state always.
S3, then the tube head 11 after fixing and connecting pipe 20 are put into thermal shock test chamber and carry out cold shock testing.Concrete test condition is: the temperature of low-temperature impact is-25 DEG C ~ 15 DEG C, the time is 3.5h ~ 4.5h, and the temperature of high temperature impact is 55 DEG C ~ 65 DEG C, the time is 3.5h ~ 4.5h, and cycle index is 18 ~ 25 times.Preferably, the temperature of low-temperature impact is-20 DEG C, the time is 4h, and the temperature of high temperature impact is 60 DEG C, the time is 4h, and cycle index is 21 times, and the attack time total is like this 168h.
After S4, cold shock testing complete, take out tube head 11 and connecting pipe 20, observe described tube head 11 bending place, judge that described tube head 11 bends reliability.Preferably, whether observe described tube head 11 bending place and ftracture and/or efflorescence, if not, then described tube head 11, if so, then described tube head 11 bends poor reliability if bending good reliability.
As can be seen here, flexible pipe 10 tube head 11 in the present embodiment bends the detection method of reliability, by the scupper hose 10 with TPE joint is assembled with corresponding material, joint is bent 180 °, then fixedly cold shock testing is carried out, after certain hour, visual inspection is carried out to bending place, to judge TPE joint flex reliability, thus the assessment achieved flexible pipe 10 joint reliability, improve stability and the reliability of flexible pipe 10, and the material that efficiently avoid flexible pipe 10 joint exception flows into production line use, decrease the hidden danger of leaking air-conditioning to a great extent.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. flexible pipe tube head bends a detection method for reliability, it is characterized in that, comprises the following steps:
S1, the tube head of flexible pipe to be measured to be connected and fixed with corresponding connecting pipe;
S2, by the described tube head bending set angle after fixing;
S3, by bending after described tube head carry out cold shock testing; And
After S4, cold shock testing complete, observe described tube head bending place, judge that described tube head bends reliability.
2. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, described step S1 is specially:
The tube head of described flexible pipe is socketed on described connecting pipe, then with pipe clamp, both is fixed.
3. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, in described step S2, described set angle is α, and 160 °≤α≤180 °.
4. flexible pipe tube head according to claim 3 bends the detection method of reliability, it is characterized in that, α=180 °.
5. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, in described step S2, pricks and described flexible pipe and described connecting pipe is banded together, make described tube head keep bending state always after described tube head bending with line.
6. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, in described step S3, the temperature of the low-temperature impact of described cold shock testing is-25 DEG C ~ 15 DEG C, the time is 3.5h ~ 4.5h, the temperature of high temperature impact is 55 DEG C ~ 65 DEG C, the time is 3.5h ~ 4.5h, and cycle index is 18 ~ 25 times.
7. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, described step S4 is specially:
After having tested, whether observe described tube head bending place and ftracture and/or efflorescence, if not, then described tube head, if so, then described tube head bends poor reliability if bending good reliability.
8. flexible pipe tube head according to claim 1 bends the detection method of reliability, it is characterized in that, described tube head is made up of TPE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590720.3A CN104655513A (en) | 2013-11-20 | 2013-11-20 | Soft pipe head bending reliability detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590720.3A CN104655513A (en) | 2013-11-20 | 2013-11-20 | Soft pipe head bending reliability detection method |
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| Publication Number | Publication Date |
|---|---|
| CN104655513A true CN104655513A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310590720.3A Pending CN104655513A (en) | 2013-11-20 | 2013-11-20 | Soft pipe head bending reliability detection method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232390A (en) * | 1975-09-08 | 1977-03-11 | Mitsubishi Heavy Ind Ltd | Apparatus for testing durability of paint films |
| CN2489325Y (en) * | 2001-08-10 | 2002-05-01 | 张晓军 | Plastic pipe cold and hot water circulating detector |
| CN1482438A (en) * | 2002-09-13 | 2004-03-17 | 广东科龙电器股份有限公司 | Cold and warm air-conditioner self-excitation type cold and thermal shock testing method |
| JP2011158362A (en) * | 2010-02-01 | 2011-08-18 | Kyushu Electric Power Co Inc | Thermal fatigue evaluation method |
-
2013
- 2013-11-20 CN CN201310590720.3A patent/CN104655513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232390A (en) * | 1975-09-08 | 1977-03-11 | Mitsubishi Heavy Ind Ltd | Apparatus for testing durability of paint films |
| CN2489325Y (en) * | 2001-08-10 | 2002-05-01 | 张晓军 | Plastic pipe cold and hot water circulating detector |
| CN1482438A (en) * | 2002-09-13 | 2004-03-17 | 广东科龙电器股份有限公司 | Cold and warm air-conditioner self-excitation type cold and thermal shock testing method |
| JP2011158362A (en) * | 2010-02-01 | 2011-08-18 | Kyushu Electric Power Co Inc | Thermal fatigue evaluation method |
Non-Patent Citations (1)
| Title |
|---|
| BRITISH STANDARDS INSTITUTION: "《BS EN 12293:2000 Plastics piping systems-Thermoplastics pipes and fittings for hot and cold water-Test method for the resistance of mounted assemblies to temperature cycling》", 15 May 2000 * |
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Application publication date: 20150527 |
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