CN105136651B - A kind of wet-hot aging performance automatic testing method based on sheet metal - Google Patents
A kind of wet-hot aging performance automatic testing method based on sheet metal Download PDFInfo
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- CN105136651B CN105136651B CN201510506300.1A CN201510506300A CN105136651B CN 105136651 B CN105136651 B CN 105136651B CN 201510506300 A CN201510506300 A CN 201510506300A CN 105136651 B CN105136651 B CN 105136651B
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- sheet metal
- airbag
- wet
- heating
- aging performance
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- 239000002184 metal Substances 0.000 title claims abstract description 85
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 85
- 230000032683 aging Effects 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000002474 experimental method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 9
- 238000003860 storage Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
Abstract
The invention discloses a kind of wet-hot aging performance automatic testing method based on sheet metal, including step：The preparation of wet-hot aging performance automatic detection device；The winding of sheet metal, heating airbag is set to be uniformly distributed in the cavity of sheet metal after the coiling；The clamping of sheet metal, sheet metal is set to be filled in cylindrical tube body；The compression of sheet metal and stretching：Inflator pump is inflated to heating airbag to setting pressure；Wet-heat resisting is tested；Rust detection：Sheet metal takes out, and heating airbag exhaust, the sheet metal of winding takes out and deployed out of cylindrical tube body, carries out the detection of surface corrosion.Simple, convenient after the above method, automaticity is high.Above-mentioned cylindrical tube, when heating air bag inflator pressurization, stop and restriction effect can be played, during actual shipment and storage can be simulated, the compression of sheet metal and pulled out condition after winding, so as to the more truly actual corrosion degree of reacting metal sheet material.
Description
Technical field
The present invention relates to a kind of method of inspection of sheet metal, particularly a kind of wet-hot aging performance based on sheet metal is certainly
Dynamic detection method.
Background technology
Resistance and fingerprint resistance continuously dip coat zine plate is the product that resistance and fingerprint resistance processing is carried out to continuous hot galvanizing plate surface, is mainly used in making
Make the products such as computer housing, server and household electrical appliances postnotum.Surface wet-hot aging performance is to weigh resistance and fingerprint resistance continuously dip coat zine plate matter
Measure one of good and bad leading indicator, it is therefore an objective to detect when coil of strip is transported and stored in hygrothermal environment whether surface corrosion occurs.
At present, the conventional method of detection resistance and fingerprint resistance continuously dip coat zine plate wet-hot aging performance is：By sheet metal list to be detected
Piece or lamination are placed in climatic chamber, after placing a period of time under certain temperature and humidity, estimate or use color difference meter
Whether detection surface of steel plate blacks or produces white rust.
Be applied with certain tension force in Continuous Hot Dip Galvanizing Line during coil of strip batches, thus after coiled transport and
During storage, steel plate is by two kinds of stress of tension and compression.And suffered stress particularly tension can accelerate steel
Corrosion of the plate under hygrothermal environment.Because moisture-proof heat detecting device or method, do not consider that sheet metal is being transported and stored at present
When suffered stress state, practical problem can not be reflected by testing hot resistance test data.If some sheet metals are in wet-heat resisting
Do not gone wrong in performance detection, still, then occur the phenomenon of plate face corrosion during actual shipment and storage.
The Chinese invention patent application of Application No. 201310753357.2, discloses one kind disclosed in 7 days Mays in 2014
Sheet material wet-hot aging performance detection fixture, the detection fixture include support, the clamping plate with locking nut and clamping screw and
8 springs of stretching.
Application No. disclosed in September in 2014 29 days201410512643.4Chinese invention patent, its innovation and creation
Entitled " a kind of sheet metal wet-hot aging performance detection fixture ", including support, the first bench vice, the second bench vice and with spring draw
Power meter, the first bench vice and the second bench vice include clamping plate and some pieces of spacer blocks that can be slid back and forth.
Above-mentioned patent application, certain tension can be applied to sheet metal in test really, however it remains
Following deficiency：
1. the tension that sheet metal is born is too small or too big, the test data for testing wet-heat resisting also still can not
Reflect practical problem.
1）When the tension that sheet metal is born is too small, sheet metal influenceed by stress it is small, deformation it is small, damp and hot
Under environment, extent of corrosion is low, and sheet metal easily occur has no problem in wet-hot aging performance detection, and it is qualified to judge, but in reality
Transport and the phenomenon of plate face corrosion occur again during storing in border.
2）When the tension that sheet metal is born is too big, the influence of sheet metal stress is big, and deformation is big, in damp and hot ring
Extent of corrosion under border is fast, and it is bad in wet-hot aging performance detection sheet metal easily occur, judge it is unqualified, but in actual fortune
Be not in plate face corrosion during defeated and storage, namely the phenomenon of wrong report.In order to improve the qualification rate that detection judges, factory
Family needs to do over again or improve technological level again, thus can increase the input of production or manufacturing cost.
2. structure design is unreasonable, using being inconvenient：The surrounding of sheet metal is provided with locking nut and locking screw
Bolt, when placing every time, it is both needed to all turn on all locking nut and clamping screw, then removes upper laminated plank, ability
Sheet metal is placed.Then, upper laminated plank is placed on sheet metal to be detected again, will need to each locked again
Nut and clamping screw are fixed, and follow-up operation every time, are both needed to repeat aforesaid operations.Whole operation is cumbersome, and labor intensity is big,
Using being inconvenient.
3. the thrust and tensile force that in test, same sheet metal is born are uneven, plate or bench vice are such as clamped
The position of clamping is subjected only to thrust, is not clamped the position that plate or bench vice clamp and is then subjected only to tensile force, namely same metal
The same position of sheet material can not i.e. bear thrust bears tensile force again, therefore is unable to stress when reacting metal sheet material stacks placement
State, therefore the test data of tested wet-heat resisting will be unable to the actual corrosion degree of reacting metal sheet material.
The content of the invention
In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide one kind is simple to operate, oneself
Dynamicization degree is high, test wet-heat resisting the actual corrosion degree of test data energy reacting metal sheet material based on the resistance to of sheet metal
Hygrothermal Properties automatic testing method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of wet-hot aging performance automatic testing method based on sheet metal, comprises the following steps：
The first step, the preparation of wet-hot aging performance automatic detection device：The pressure being connected with PLC is arranged in airbag is heated
Sensor, the gas bleeder valve of heating airbag is opened, and the charge valve for heating airbag is connected with inflator pump.
Second step, the winding of sheet metal：Heating airbag in the first step is placed on sheet metal, then by metal
Sheet material is wound, and heating airbag is uniformly distributed in the cavity of sheet metal after the coiling.
3rd step, the clamping of sheet metal：The sheet metal that second step winding is completed, is filled in a cylindrical tube
It is interior；
4th step, the compression of sheet metal and stretching：The gas bleeder valve heated on airbag is closed, and opens charge valve, is filled
Air pump is inflated to heating airbag, and the gas pressure heated in airbag can be monitored by heating the pressure sensor in airbag, work as pressure
After power reaches setting, PLC instruction charge valves are closed.
5th step, wet-heat resisting experiment：The sheet metal compressed with extended state will be in 4th step, be put into constant temperature and humidity
In baking oven, wet-heat resisting experiment is carried out.
6th step, rust detection：The sheet metal for completing hot resistance test is taken out from constant temperature constant humidity baking oven, will be heated
Gas bleeder valve on airbag is opened, and discharges the gas in heating airbag, after the sheet metal of winding is taken out of cylindrical tube body
Go out and deploy, carry out the detection of surface corrosion.
In 3rd step, several passages are provided with the cylinder body.
In the first step, the temperature sensor being connected with PLC is there also is provided in the heating airbag.
In 4th step, inflator pump is hot and humid gas to heating airbag institute inflatable body.
In the second step, when sheet metal is wound, the Winding Layer of sheet metal is no less than three layers.
After the present invention uses the above method, have the advantages that：
1. reasonable in design, simple, convenient, automaticity is high.
2. above-mentioned cylindrical tube, when heating air bag inflator pressurization, stop and restriction effect can be played, can be simulated actual
During transport and storage, the compression of sheet metal and pulled out condition after winding, so as to more truly reacting metal plate
The actual corrosion degree of material.
3. the setting of above-mentioned pressure sensor and temperature sensor, gas pressure and temperature in heating airbag can be enabled
Monitoring is accessed, when bearing different pressures and different stretch power so as to simulate sheet metal, the corrosion degree of sheet metal.
4. in addition, fill hot and humid gas in heating airbag, the temperature of the hot and humid gas preferably with constant temperature constant humidity baking oven
Temperature is consistent, so, the damp and hot experiment of sheet metal can be made more uniform, as a result more true.Further, on cylindrical tube
The setting of passage, it can also make the damp and hot experiment of sheet metal more uniform.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the wet-hot aging performance automatic detection device based on sheet metal of the present invention.
Wherein have：
1. cylindrical tube；
2. heat airbag；
21. pressure sensor；22. temperature sensor；23. charge valve；24. gas bleeder valve；
3. inflator pump；
4. sheet metal.
Embodiment
The present invention is further detailed explanation with specific better embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of wet-hot aging performance automatic detection device based on sheet metal, including cylindrical tube 1 plus
Hot air bag 2, PLC and inflator pump 3.
Above-mentioned heating airbag 2 can uniform pack in cylindrical tube 1.
The charge valve 23 and gas bleeder valve 24 being connected with PLC are provided with heating airbag 2, heats and is provided with airbag 2
The pressure sensor 21 being connected with PLC.
Inflator pump 3 is connected with the charge valve 23 on heating airbag 2, preferably can provide hot and humid gas to heating airbag 2..
Further, several passages are provided with above-mentioned cylindrical tube 1, are preferably arranged in plum blossom-shaped.
Further, above-mentioned heating airbag 2 is additionally provided with the temperature sensor 22 being connected with PLC.
A kind of wet-hot aging performance automatic testing method based on sheet metal, comprises the following steps：
The first step, the preparation of wet-hot aging performance automatic detection device：The pressure being connected with PLC is arranged in airbag is heated
Sensor, the gas bleeder valve of heating airbag is opened, and the charge valve for heating airbag is connected with inflator pump.
In this step, heat in airbag and be further preferably disposed with the temperature sensor being connected with PLC.
Second step, the winding of sheet metal：Heating airbag in the first step is placed on sheet metal, then by metal
Sheet material is wound, and Winding Layer is preferably no less than 3 layers, and heating airbag is uniformly distributed the sky of sheet metal after the coiling
Intracavitary.
3rd step, the clamping of sheet metal：The sheet metal that second step winding is completed, is filled in an above-mentioned cylinder
In shape body.
4th step, the compression of sheet metal and stretching：The gas bleeder valve heated on airbag is closed, and opens charge valve, is filled
Air pump is inflated to heating airbag, preferably hot and humid gas；Pressure sensor in heating airbag can be monitored in heating airbag
Gas pressure, after pressure reaches setting, PLC instruction charge valve close.
5th step, wet-heat resisting experiment：The sheet metal compressed with extended state will be in 4th step, be put into constant temperature and humidity
In baking oven, wet-heat resisting experiment is carried out.
6th step, rust detection：The sheet metal for completing hot resistance test is taken out from constant temperature constant humidity baking oven, will be heated
Gas bleeder valve on airbag is opened, and discharges the gas in heating airbag, after the sheet metal of winding is taken out of cylindrical tube body
Go out and deploy, carry out the detection of surface corrosion.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (5)
- A kind of 1. wet-hot aging performance automatic testing method based on sheet metal, it is characterised in that：Comprise the following steps：The first step, the preparation of wet-hot aging performance automatic detection device：The pressure sensing being connected with PLC is arranged in airbag is heated Device, the gas bleeder valve of heating airbag is opened, and the charge valve for heating airbag is connected with inflator pump；Second step, the winding of sheet metal：Heating airbag in the first step is placed on sheet metal, then by sheet metal It is wound, heating airbag is uniformly distributed in the cavity of sheet metal after the coiling；3rd step, the clamping of sheet metal：The sheet metal that second step winding is completed, is filled in a cylindrical tube body；4th step, the compression of sheet metal and stretching：The gas bleeder valve heated on airbag is closed, and opens charge valve, inflator pump Heating airbag is inflated, the gas pressure heated in airbag can be monitored by heating the pressure sensor in airbag, when pressure reaches To after setting, PLC instruction charge valves are closed；5th step, wet-heat resisting experiment：The sheet metal compressed with extended state will be in 4th step, be put into constant temperature constant humidity baking oven In, carry out wet-heat resisting experiment；6th step, rust detection：The sheet metal for completing hot resistance test is taken out from constant temperature constant humidity baking oven, airbag will be heated On gas bleeder valve open, discharge the gas in heating airbag, after the sheet metal of winding is taken out simultaneously out of cylindrical tube body Expansion, carries out the detection of surface corrosion.
- 2. the wet-hot aging performance automatic testing method according to claim 1 based on sheet metal, it is characterised in that：It is described In 3rd step, several passages are provided with the cylinder body.
- 3. the wet-hot aging performance automatic testing method according to claim 1 based on sheet metal, it is characterised in that：It is described In the first step, the temperature sensor being connected with PLC is there also is provided in the heating airbag.
- 4. the wet-hot aging performance automatic testing method according to claim 3 based on sheet metal, it is characterised in that：It is described In 4th step, inflator pump is hot and humid gas to heating airbag institute inflatable body.
- 5. the wet-hot aging performance automatic testing method according to claim 1 based on sheet metal, it is characterised in that：It is described In second step, when sheet metal is wound, the Winding Layer of sheet metal is no less than three layers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620115.4A CN107389540B (en) | 2015-08-18 | 2015-08-18 | Damp-heat resistance automatic checkout device based on sheet metal |
| CN201510506300.1A CN105136651B (en) | 2015-08-18 | 2015-08-18 | A kind of wet-hot aging performance automatic testing method based on sheet metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506300.1A CN105136651B (en) | 2015-08-18 | 2015-08-18 | A kind of wet-hot aging performance automatic testing method based on sheet metal |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710620115.4A Division CN107389540B (en) | 2015-08-18 | 2015-08-18 | Damp-heat resistance automatic checkout device based on sheet metal |
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| CN105136651A CN105136651A (en) | 2015-12-09 |
| CN105136651B true CN105136651B (en) | 2017-12-01 |
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| CN201710620115.4A Active CN107389540B (en) | 2015-08-18 | 2015-08-18 | Damp-heat resistance automatic checkout device based on sheet metal |
| CN201510506300.1A Active CN105136651B (en) | 2015-08-18 | 2015-08-18 | A kind of wet-hot aging performance automatic testing method based on sheet metal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710620115.4A Active CN107389540B (en) | 2015-08-18 | 2015-08-18 | Damp-heat resistance automatic checkout device based on sheet metal |
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| CN109323978A (en) * | 2017-07-31 | 2019-02-12 | 泰奥星（天津）有限公司 | A kind of copper corrosion analyzer |
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| CN101178344A (en) * | 2007-11-23 | 2008-05-14 | 浙江工业大学 | Device applied to stress etching experiment |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103234835A (en) * | 2013-04-28 | 2013-08-07 | 华北电力大学 | Method and system for realizing interaction of high-temperature steam oxidation and high-temperature creep |
| CN103926146A (en) * | 2014-04-11 | 2014-07-16 | 西南石油大学 | Constant-load stress corrosion testing device of small test sample and testing method thereof |
| CN104198280A (en) * | 2014-09-29 | 2014-12-10 | 无锡康柏斯机械科技有限公司 | Clamp for detecting humidity resistance of sheet metal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0296637A (en) * | 1988-10-03 | 1990-04-09 | Babcock Hitachi Kk | System for monitoring stress corrosion cracking generating life |
| JP3596925B2 (en) * | 1995-01-23 | 2004-12-02 | 東伸工業株式会社 | High temperature test equipment |
| CN202110059U (en) * | 2011-06-10 | 2012-01-11 | 成都泓奇实业股份有限公司 | Load simulation test bed for marsh gas tank |
| CN202994630U (en) * | 2012-11-13 | 2013-06-12 | 重庆哈丁科技有限公司 | Combined type salt spray test box |
| CN104297068B (en) * | 2014-10-14 | 2017-01-18 | 北京强度环境研究所 | Soft airbag for loading inner pressure on inner wall of cylinder |
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- 2015-08-18 CN CN201710620115.4A patent/CN107389540B/en active Active
- 2015-08-18 CN CN201510506300.1A patent/CN105136651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178344A (en) * | 2007-11-23 | 2008-05-14 | 浙江工业大学 | Device applied to stress etching experiment |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103234835A (en) * | 2013-04-28 | 2013-08-07 | 华北电力大学 | Method and system for realizing interaction of high-temperature steam oxidation and high-temperature creep |
| CN103926146A (en) * | 2014-04-11 | 2014-07-16 | 西南石油大学 | Constant-load stress corrosion testing device of small test sample and testing method thereof |
| CN104198280A (en) * | 2014-09-29 | 2014-12-10 | 无锡康柏斯机械科技有限公司 | Clamp for detecting humidity resistance of sheet metal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107389540A (en) | 2017-11-24 |
| CN107389540B (en) | 2020-11-10 |
| CN105136651A (en) | 2015-12-09 |
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