CN203587457U - Three-point bending test device for simulating corrosion fatigue of ocean splash zone - Google Patents
Three-point bending test device for simulating corrosion fatigue of ocean splash zone Download PDFInfo
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- CN203587457U CN203587457U CN201320803220.9U CN201320803220U CN203587457U CN 203587457 U CN203587457 U CN 203587457U CN 201320803220 U CN201320803220 U CN 201320803220U CN 203587457 U CN203587457 U CN 203587457U
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Abstract
The utility model discloses a three-point bending test device for simulating corrosion fatigue of an ocean splash zone, and relates to a three-point bending test device of an ocean splash zone corrosion fatigue test. The three-point bending test device is composed of a three-point bending test block, a main box for fixing the three-point bending test block, a subsidiary box for keeping a test water level, a seawater spraying pipeline for simulating wave splash and a seawater circulating power device for enabling the seawater to flow. The three-point bending test device provided by the utility model has the advantages that a condition that a crack part is positioned in the circulating seawater without impurities is guaranteed, the leakage is capable of preventing, the operation is simple, and an environment-friendly property, an automation property and an intelligentized property are combined into a whole.
Description
Technical field
The utility model belongs to metallic material corrosion technical research field, relates to a kind of ocean splash zone corrosion torture test three point bending test device.
Background technology
Corrosion fatigue refers to the caused Fracture of Metal Material phenomenon of the synergy of Korrosionsmedium and alterante stress or pulsating stress.The corrosion fatigue problem of metal material becomes the important content in corrosion science research field.Engineering practice usually, because member can not bear harsh corrosion and load-up condition, causes a serious accident, and to national economy, brings heavy losses.From using safely, economically and reasonably the angle of metal material, the mankind are in the urgent need to understanding the knowledge of metal material corrosion fatigue, and corrosion fatigue phenomenon, mechanism that especially for the current mankind, oneself is widely used in some Typical Metals of marine environment more need system and deep research.
Show that according to the study Lang Jian district and Tidal zone are the most serious regions of ocean steel construction corrosion.Existing corrosion fatigue technology and corrosion device great majority thereof are all for static seawater corrosion fatigue, or can only in flowing seawater, carry out simple torture test.The dry wet corrosion situation of traditional corrosion device Dui Langjian district complexity is difficult to realize.At present relevant Lang Jian district metallic material corrosion fatigue experimental device seldom has report, only there is the simple introduction of relevant corrosion test design in corrosion fatigue test, as mono-kind of: patent < < that Chinese Academy of Sciences's metal is applied for provides the control device > > of simulating ocean environment for corrosion fatigue test, < < realizes the equipment of synchronous alternation of wetting and drying accelerated corrosion and applies in > > in loading procedure fuzzy introduction, and test unit for be simple extension test.This process of the test, concerning For Three Points Bending Specimen, cannot be installed extensometer, therefore also inapplicable; In the electrolytic cell device > > of a < < electrochemical in-situ measurement, designed a kind of corrosion device of For Three Points Bending Specimen, but because sample need to be fixed on testing machine, so be only applicable to undersized three point bending test, and corrosive liquid easily overflows; < < corrosion fatigue test is with in fixture > >, only provided the concrete form of For Three Points Bending Specimen fixture, corrosion box is not specifically described, and sample is not easy to fix, complexity operates.So, the device that in existing technology, all ubiquity is difficult to real simulation waves splash about the corrosion fatigue behavior, particularly For Three Points Bending Specimen in district.
Utility model content
The purpose of this utility model is to overcome the shortcoming existing in prior-art devices, proposed the tired three point bending test device of simulation ocean splash zone corrosion, by the main box of three-point bending test block, fixedly three-point bending test block, the secondary box of maintenance test water level, the seawater spraying pipeline that simulation wave spatters and the seawater cycle power device that marine stream is provided, formed;
The connected mode of seawater cycle power device is as follows: the seawater in sea water supply case is squeezed in the seawater storage box of eminence by water-transmission line and the micro pump being arranged in this section of water-transmission line, seawater flows into the water inlet of the main box that three-point bending test block is installed through water-transmission line and the control speed valve that is arranged on this section of water-transmission line from the storage box of eminence, and flow into secondary box by the water delivering orifice of the other end lower of main box; Main box is placed in secondary box; In the same level of secondary box sidewall lower than water delivering orifice, have two secondary box water delivering orifices, two water-transmission lines are connected respectively two secondary box water delivering orifices, and through being arranged on the control speed valve of this Duan Bingliu water-supply-pipe, flow in the Rose Box of lower after stream; Seawater in Rose Box flow back in the sea water supply case of lowest part through water-transmission line; One end of liquid level relay is communicated with micro pump, and the other end is communicated with the seawater storage box of eminence; The switch of liquid level relay automatically controlled water pump.
The glass communicating pipe of ball float water level gauge tap and main box bottom are connected to form linker, ball float water level gauge tap is connected with two fast valves of control in seawater circulation closed loop respectively, along with liquid surface lifting in box, ball float is lifting simultaneously also, thereby regulates the size of the fast valve of control.
Main box and secondary box are all the box body that bottom surface is rectangle, and the height of main box is greater than secondary box; Place, two longer side plate centre positions at main box has the main box groove that is a bit larger tham three-point bending test block cross sectional dimensions, and main box groove inner bottom surface is rubber blanket fixedly; On the lateral wall of the main box of main box groove both sides, fixedly have respectively the organic glass coulisse of vertical chute; Three-point bending test block is across main box, and two ends are exposed main box and are placed in main box groove; The crackle of three-point bending test block, and is positioned at the center of main box upward; Two chutes that have a rubber baffle with three-point bending test block xsect same size groove Open Side Down by coulisse insert the main box groove of main box sidewall, from both sides and top, three-point bending test block are fixed on main box groove; Rubber baffle and main box groove contact portion are mutually coincide and are formed sealing, and the top of rubber baffle is identical with the height of main box.
Support fixture lower end is fixed on bolt in the screw thread hole of main box plate center, and upper end is supported on three-point bending test block bottom center place.
The longer side plate in main box both sides adopts double-deck organic glass, inner clip rubber layer.
The box body container that Rose Box adopts organic glass to make, inside is arranged fibrous filter in length and breadth, arranges along its length two-layerly, short transverse is arranged three layers.
Spray pipe is controlled spray time by automatic sprinkler.
Water-transmission line in seawater closed circuit system can adopt rubber water pipe.
The utlity model has following superiority:
Main box side plate designs main box groove, is convenient to three-point bending test block maintenance level fixing time.Adopt rubber baffle and rubber spacer to fix three-point bending test block, rubber can effectively guarantee that corrosive liquid does not ooze dew on the one hand, can protect on the other hand corrosion box not damaged by pressure under Fatigue Load.
Seawater Circulated power system of the present utility model, adopts liquid level relay to carry out the switch of automatically controlled water pump, and making has certain water yield in memory storage all the time, is that system has circulation power all the time.
Water-level control apparatus of the present utility model, by the lifting of ball float, regulates the size of current control speed valve, thereby changes the flow velocity of intake-outlet, makes liquid level controlled.
Filtration unit of the present utility model, by the filtration of the fibrous filter arranged in length and breadth, keeps the clean of circulating seawer, makes test findings more accurately reliable.
The utility model, also in conjunction with seawater automatic spraying device, is simulated the corrosive attack of wave, makes test findings more accurately reliable.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
In figure: 1 Rose Box; 2 sea water supply casees; 3 micro pumps; 4 liquid level relays; 5 storage boxes; 6 coulisses; The fast valve of 7 control; 8 main boxes; 9 secondary boxes; 10 rubber baffles; 11 three-point bending test blocks; 12 glass communicating pipes; 13 ball float water level gauge tap; 14 automatic sprinklers; 15 fibrous filters; 16 spray pipes; 21 crackles; 81 water inlets; 82 water delivering orifices; 91 secondary box water delivering orifices.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail
The tired three point bending test device of simulation ocean splash zone corrosion, the seawater spraying pipeline 16 being spattered by the main box 8 of three-point bending test block 11, fixedly three-point bending test block 11, the secondary box 9 that keeps test water level, simulation wave and the seawater cycle power device that marine stream is provided form;
The connected mode of seawater cycle power device is as follows: the seawater in sea water supply case 2 is squeezed in the seawater storage box 5 of eminence by water-transmission line and the micro pump 3 being arranged in this section of water-transmission line, seawater flows into the water inlet 81 of the main box 8 that three-point bending test block 11 is installed through water-transmission lines and the control speed valve 7 that is arranged on this section of water-transmission line from the storage box 5 of eminence, and flow into secondary box 9 by the water delivering orifice 82 of the other end lower of main box 8; Main box 8 is placed in secondary box 9; In the same level of secondary box 9 sidewalls lower than water delivering orifice 82, have 91, two water-transmission lines of two secondary box water delivering orifices and connect respectively two secondary box water delivering orifices 91, and through being arranged on the control speed valve 7 of this Duan Bingliu water-supply-pipe, flow in the Rose Box 1 of lower after stream; Seawater in Rose Box 1 flow back in the sea water supply case 2 of lowest part through water-transmission line; One end of liquid level relay 4 is communicated with micro pump 3, and the other end is communicated with the seawater storage box 5 of eminence; The switch of liquid level relay 4 automatically controlled water pumps.
Glass communicating pipe 12 and main box 8 bottoms of ball float water level gauge tap 13 are connected to form linker, ball float water level gauge tap 13 is connected with two fast valves 7 of control in seawater circulation closed loop respectively, along with liquid surface lifting in box, ball float is lifting simultaneously also, thereby regulates the size of the fast valve 7 of control.
Main box 8 and secondary box 9 are all the box body that bottom surface is rectangle, and the height of main box 8 is greater than secondary box 9; Place, two longer side plate centre positions at main box 8 has the main box groove that is a bit larger tham three-point bending test block 11 cross sectional dimensions, and main box groove inner bottom surface is rubber blanket fixedly; On the lateral wall of the main box 8 of main box groove both sides, fixedly have respectively the organic glass coulisse 6 of vertical chute; Three-point bending test block 11 is across main box 8, and two ends are exposed main box 8 and are placed in main box groove; The crackle of three-point bending test block 11, and is positioned at the center of main box 8 upward; Two have a rubber baffle 10 with three-point bending test block 11 xsect same size grooves Open Side Down the main box groove that inserts main box sidewall by the chute of coulisse 6, from both sides and top, three-point bending test block 11 are fixed on main box groove; Rubber baffle 10 mutually coincide and forms sealing with main box groove contact portion, and the top of rubber baffle 10 is identical with the height of main box 8.
Support fixture lower end is fixed on bolt in the screw thread hole of main box 8 base plate centers, and upper end is supported on three-point bending test block 11 bottom center places.
The main box 8 longer side plates in both sides adopt double-deck organic glass, inner clip rubber layer.
The box body container that Rose Box 1 adopts organic glass to make, inside is arranged fibrous filter 15 in length and breadth, arranges along its length two-layerly, short transverse is arranged three layers.
Spray pipe 16 is controlled spray time by automatic sprinkler 14.
Water-transmission line in seawater closed circuit system can adopt rubber water pipe.
System Operation mode is as follows:
First, by the micro pump 3 of opening, seawater is extracted into the seawater storage box 5 of eminence from the sea water supply case 4 of lower.Then, seawater is because self gravitation effect meeting flows into corrosion box 8 automatically.Appropriate regulation through the fast valve 7 of control, can make inner box 8 liquid levels obtain lifting.The mode that adopts the outer box 9 of inner box 8 to combine, and set up rubber baffle 10 and rubber spacer, can farthest prevent corrosive liquid seepage in process of the test on the one hand, can weaken on the other hand the percussive action of fatigue load to corrosion box 8.When seawater can produce some corrosion products after excessive erosion box 8.Through the filtration unit 1 with multi-layer fiber filter material 15, can make seawater keep clean, thereby not affect experimental result.Finally, current can be got back to sea water supply case 2, complete once circulation.
In order to find equilibrium point to make liquid level stabilizing, the utility model is considered corrosion box actual size, utilizes linker 12 principles, externally sets up a water-level control apparatus.This device includes and the float switch 13 of controlling fast valve 7 and being connected.Therefore, liquid surface lifting drives ball float 13 liftings, finally makes flow velocity controlled.
For the maximum natural situation in simulation Lang Jian district, the utility model is also set up the automatic sprinkler 14 of automatic spraying seawater, includes time controller and reserve tank independently, makes test findings more true and reliable.
Claims (5)
1. the tired three point bending test device of simulation ocean splash zone corrosion, is characterized in that the seawater spraying pipeline (16) being spattered by the main box (8) of three-point bending test block (11), fixedly three-point bending test block (11), the secondary box (9) that keeps test water level, simulation wave and provides the seawater cycle power device of marine stream to form;
The connected mode of seawater cycle power device is as follows: the seawater in sea water supply case (2) is squeezed in the seawater storage box (5) of eminence by water-transmission line and the micro pump (3) being arranged in this section of water-transmission line, seawater flows into the water inlet (81) of the main box (8) that three-point bending test block (11) is installed through water-transmission line and the control speed valve (7) that is arranged on this section of water-transmission line from the storage box (5) of eminence, and flow into secondary box (9) by the water delivering orifice (82) of the other end lower of main box (8); Main box (8) is placed in secondary box (9); In the same level of secondary box (9) sidewall lower than water delivering orifice (82), have two secondary box water delivering orifices (91), two water-transmission lines are connected respectively two secondary box water delivering orifices (91), and through being arranged on the control speed valve (7) of this Duan Bingliu water-supply-pipe, flow in the Rose Box (1) of lower after stream; Seawater in Rose Box (1) flow back in the sea water supply case (2) of lowest part through water-transmission line; One end of liquid level relay (4) is communicated with micro pump (3), and the other end is communicated with the seawater storage box (5) of eminence; The switch of liquid level relay (4) automatically controlled water pump;
The glass communicating pipe (12) of ball float water level gauge tap (13) is connected to form linker with main box (8) bottom, ball float water level gauge tap (13) is connected with two the fast valves of control (7) in seawater circulation closed loop respectively, along with liquid surface lifting in box, ball float is lifting simultaneously also, thereby regulates the size of the fast valve of control (7);
Main box (8) and secondary box (9) are all the box body that bottom surface is rectangle, and the height of main box (8) is greater than secondary box (9); Place, two longer side plate centre positions at main box (8) has the main box groove that is a bit larger tham three-point bending test block (11) cross sectional dimensions, and main box groove inner bottom surface is rubber blanket fixedly; On the lateral wall of the main box (8) of main box groove both sides, fixedly have respectively the organic glass coulisse (6) of vertical chute; Three-point bending test block (11) is across main box (8), and two ends are exposed main box (8) and are placed in main box groove; The crackle of three-point bending test block (11), and is positioned at the center of main box (8) upward; Two have a rubber baffle (10) with three-point bending test block (11) xsect same size groove Open Side Down the main box groove that inserts main box sidewall by the chute of coulisse (6), from both sides and top, three-point bending test block (11) are fixed on main box groove; Rubber baffle (10) mutually coincide and forms sealing with main box groove contact portion, and the top of rubber baffle (10) is identical with the height of main box (8);
Support fixture lower end is fixed on bolt in the screw thread hole of main box (8) base plate center, and upper end is supported on three-point bending test block (11) bottom center place.
2. the tired three point bending test device of simulation according to claim 1 ocean splash zone corrosion, is characterized in that the longer side plate in main box (8) both sides adopts double-deck organic glass, inner clip rubber layer.
3. the tired three point bending test device of simulation according to claim 1 ocean splash zone corrosion, it is characterized in that the box body container that Rose Box (1) adopts organic glass to make, inside is arranged fibrous filter (15) in length and breadth, arranges along its length two-layerly, and short transverse is arranged three layers.
4. the tired three point bending test device of simulation according to claim 1 ocean splash zone corrosion, is characterized in that spray pipe (16) is by automatic sprinkler (14) control spray time.
5. the tired three point bending test device of simulation according to claim 1 ocean splash zone corrosion, is characterized in that the water-transmission line in seawater closed circuit system can adopt rubber water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803220.9U CN203587457U (en) | 2013-12-05 | 2013-12-05 | Three-point bending test device for simulating corrosion fatigue of ocean splash zone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803220.9U CN203587457U (en) | 2013-12-05 | 2013-12-05 | Three-point bending test device for simulating corrosion fatigue of ocean splash zone |
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| CN203587457U true CN203587457U (en) | 2014-05-07 |
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| CN201320803220.9U Withdrawn - After Issue CN203587457U (en) | 2013-12-05 | 2013-12-05 | Three-point bending test device for simulating corrosion fatigue of ocean splash zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630451A (en) * | 2013-12-05 | 2014-03-12 | 大连理工大学 | Three-point bending test device for simulating corrosion fatigue of splash zone of ocean |
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- 2013-12-05 CN CN201320803220.9U patent/CN203587457U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630451A (en) * | 2013-12-05 | 2014-03-12 | 大连理工大学 | Three-point bending test device for simulating corrosion fatigue of splash zone of ocean |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20150729 |
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| RGAV | Abandon patent right to avoid regrant |