CN104897498A - Method for testing wear resistance of surface coating of profile via falling sand tester - Google Patents
Method for testing wear resistance of surface coating of profile via falling sand tester Download PDFInfo
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- CN104897498A CN104897498A CN201510344857.XA CN201510344857A CN104897498A CN 104897498 A CN104897498 A CN 104897498A CN 201510344857 A CN201510344857 A CN 201510344857A CN 104897498 A CN104897498 A CN 104897498A
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Abstract
The invention discloses a method for testing wear resistance of a surface coating of a profile via a falling sand tester. The method includes the steps of adjusting tilting angle of a profile plate via a spindle of a sample support, loading a sand funnel with sand, allowing the sand to flow out of a discharge outlet of the sand funnel and perpendicularly fall in a guide tube onto the profile plate along a sand guide pin, allowing the sand to slide to a guide plate along the profile plate and enters a sand box from the guide plate, allowing the sand to continue falling until that a falling sand stress point of the profile plate is worn through, closing a throttle valve to stop sand falling, metering the weight of the sand via a weigher, and measuring the wear resistance of the surface coating of the profile plate. The method has the advantages that the wear resistance of the surface coating of the profile plate is accurately measured according to the weight of the worn-through surface coating of the profile plate, and the sand is highly concentrated; the guide tube prevents wind from affecting the sand in free falling, a lifting mechanism lifts a sand weighing mechanism to the sand funnel, and the sand in the sand weighing mechanism flows into the sand funnel for reuse.
Description
Technical field
The present invention relates to a kind of method using sand trial machine testing Surface of profile coating abrasion performance.
Background technology
Aluminum alloy building section is mainly used in building trade, field of house buildings, have lightweight, structure is attractive in appearance, corrosion-resistant, process the advantages such as simple.Along with change and the growth in the living standard of environment, require more and more higher to the erosion of aluminum alloy building section surface corrosion-resistant, therefore aluminum alloy building section surface coating wearing quality measures particularly important.Owing to not specifying the concrete grammar that sand amount concentration ratio measures and scope in the wearing quality detection method that anode oxide film specifies, cause wearing quality measurement result different, what have even cannot detect surface coating wearing quality, the serious accurate detection that have impact on Surface of profile quality, brings certain puzzlement to aluminium section bar manufacturing enterprise and user.
Summary of the invention
Technical matters to be solved by this invention is, for the deficiencies in the prior art, provides a kind of method of use sand trial machine testing Surface of profile coating abrasion performance of Measurement accuracy Surface of profile coating abrasion performance.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method using sand trial machine testing Surface of profile coating abrasion performance, described sand trial machine comprises bracing frame, be arranged on the Sheng sand hopper on bracing frame top, the discharging opening of described Sheng sand hopper is connected with conduit upper end, workpiece is provided with below described conduit lower end, the flow control valve controlling to leak material speed is provided with in described Sheng sand hopper, described workpiece is profile plate, described profile plate is obliquely installed, stock guide knockout being imported sand material Weighing mechanism is provided with below described profile plate, described bracing frame is provided with sample bearing, described sample bearing is provided with the rotating shaft adjusting described profile plate angle of inclination, described stock guide is connected on described sample bearing, described rotating shaft is extended with the elasticity jig arm clamping described profile plate, pilot pin is provided with above described stock guide, the knockout stress point of described pilot pin and profile plate is in same level position, described testing machine also comprises and vertically stretches to and lead sand pin by containing the discharging opening of sand hopper in conduit, described conduit is provided with throttling valve, described sand material Weighing mechanism is arranged on elevating mechanism, described bracing frame is provided with sway brace, described sway brace is provided with the guide rail longitudinally arranged along sway brace, described elevating mechanism comprises the brace table of propping sand material Weighing mechanism, the slide block of longitudinal sliding motion on described guide rail is controlled by lead screw transmission mechanism, the sidewall of described brace table is connected with described slide block, described sand material Weighing mechanism comprises weight scale, be arranged on the sand hopper on weight scale, described sand hopper top is provided with sand inlet, described sand inlet be provided be obliquely installed lead sand plate, the tank wall of described sand hopper be provided be communicated with in case go out sandpipe, the described entrance point going out sandpipe is provided with the opening/closing operation valve of the import that controls out sandpipe, described method comprises the following steps:
A) by the angle of inclination of the rotating shaft adjustment profile plate of sample bearing, and the knockout stress point of profile plate and the distance of containing sand hopper is controlled by pilot pin, sand material loads to be contained in sand hopper, sand material is flowed out by the discharging opening containing sand hopper, along leading the vertical drop in conduit of sand pin, and dropping down onto on profile plate, sand material and then slide to stock guide along profile plate, imports sand hopper by stock guide;
B) above-mentioned sand material falls until the knockout stress point of profile plate is worn through always, closes throttling valve, stops knockout, and the quality of weight scale metering sand material, measures profile plate surface coating wearing quality;
C) brace table is passed through guide rail upward sliding, slide to bracing frame top, sand material flows into Sheng sand hopper by the sandpipe that goes out of sand hopper, realizes recycling of sand material.
In a step, the angle of inclination of profile plate is 40 °-50 °, and the knockout stress point being controlled profile plate by pilot pin is 0.9-1.1m with the distance of containing sand hopper.
In b step, the formula that Surface of profile coating abrasion performance is measured is: f=m/ho, and wherein, f is barasion coefficient, and m is the sand material quality that worn out Surface of profile coating consumes, and ho is the thickness of Surface of profile coating.
The present invention adopts said method, has the following advantages: 1, by the quality of worn out Surface of profile coating, Measurement accuracy Surface of profile coating abrasion performance, and sand material centrality is strong; 2, conduit prevents wind-force from having an impact to free-falling sand material; Sand material Weighing mechanism rises to by elevating mechanism contains sand hopper place, and the sand stream in sand material Weighing mechanism, to containing in sand hopper, realizes recycling.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
Fig. 1 is the structural representation of sand trial machine in the present invention;
Fig. 2 is the structural representation that medium section plate of the present invention is arranged on sample bearing;
In Fig. 1 ~ Fig. 2,1, bracing frame; 2, sand hopper is contained; 3, conduit; 4, flow control valve; 5, profile plate; 6, stock guide; 7, sample bearing; 8, rotating shaft; 9, elasticity jig arm; 10, pilot pin; 11, sand pin is led; 12, throttling valve; 13, sway brace; 14, brace table; 15, weight scale; 16, sand hopper; 17, sand plate is led; 18, sandpipe is gone out;
Embodiment
A kind of method using sand trial machine testing Surface of profile coating abrasion performance as shown in Figure 1, sand trial machine comprises bracing frame 1, is arranged on the Sheng sand hopper 2 on bracing frame 1 top, the discharging opening containing sand hopper 2 is connected with conduit 3 upper end, and conduit 3 is provided with workpiece below lower end.The interior angle containing sand hopper 2 can be 60 °, and discharging bore can be 5mm, and containing sand hopper 2 max cap. is 7.5L.Contain in sand hopper 2 flow control valve 4 being provided with and controlling to leak material speed, by adjust flux variable valve 4, control the sand stream amount spilt, reach the flow (can be 310g/min-330g/min) of regulation.Workpiece should intercept on the decorative cover of section bar, when on section bar during direct sample, can not using the plane plate specimen made with product same material and same treatment condition.Workpiece is profile plate 5, and profile plate 5 is obliquely installed, and is provided with the stock guide 6 knockout being imported sand material Weighing mechanism below profile plate 5.Bracing frame 1 is provided with sample bearing 7, and sample bearing 7 is provided with the rotating shaft 8 at adjustment profile plate 5 angle of inclination, and stock guide 6 is connected on sample bearing 7; Figure 2 shows that the structural representation of profile plate on sample bearing 7 and horizontal direction parallel, by rotating shaft 8 profile plate 5 is adjusted to during use and is obliquely installed, make profile plate 5 be 40 °-50 ° with the angle of surface level, the best is 45 °, makes it fixing after adjusting by bolt-locking rotating shaft.
Rotating shaft 8 is extended with the elasticity jig arm 9 of clamping section plate 5.Be provided with pilot pin 10 above stock guide 6, pilot pin 10 is in same level position with the knockout stress point of profile plate 5.Pilot pin 10 controls the knockout stress point of profile plate 5 and the distance of containing sand hopper 2, this distance is 0.9-1.1m, the effect of pilot pin 10 is that when ensureing each sample, it is all identical that sand material is free to drop down to the height contacted with profile plate 5, reduces because of the highly different error produced.Testing machine also comprises and vertically stretches to and lead sand pin 11 by containing the discharging opening of sand hopper 2 in conduit 3.The effect of conduit 3 is kept out the wind, and after sand stream goes out to contain sand hopper, prevents wind-force from having an impact to free-falling sand material.Conduit 3 is provided with throttling valve 12, after having tested, turns off throttling valve immediately at every turn, stops sand material to continue to flow out, avoids affecting testing result, open when need again detect again.Sand material Weighing mechanism is arranged on elevating mechanism.Bracing frame 1 is provided with sway brace 13, sway brace 13 is provided with the guide rail longitudinally arranged along sway brace, elevating mechanism comprises the brace table 14 of propping sand material Weighing mechanism, is controlled the slide block of longitudinal sliding motion on described guide rail by lead screw transmission mechanism, and the sidewall of brace table is connected with slide block.
Sand material Weighing mechanism comprises weight scale 15, the sand hopper 16 be arranged on weight scale 15, sand hopper 16 top is provided with sand inlet, sand inlet be provided be obliquely installed lead sand plate 17, the tank wall of sand hopper 16 be provided be communicated with in case go out sandpipe 18, the entrance point going out sandpipe 18 is provided with the opening/closing operation valve of the import that controls out sandpipe.Sand material adopts standard black silicon-carbide particle, and the suitable particle size of sand material is the F80 specified in GB/T2480, reusable 50 times of sand material, and each use should be dried at 105 DEG C of temperature.Test temperature is room temperature, and should wind sheltering.
The method of sand trial machine testing Surface of profile coating abrasion performance is used to comprise the following steps:
A) by the angle of inclination of the rotating shaft adjustment profile plate of sample bearing, the angle of inclination of profile plate is made to be 40 °-50 °, and the knockout stress point of profile plate and the distance of containing sand hopper is controlled by pilot pin, this distance is 0.9-1.1m, and sand material loads to be contained in sand hopper, and sand material is flowed out by the discharging opening containing sand hopper, along leading the vertical drop in conduit of sand pin, and dropping down onto on profile plate, sand material and then slide to stock guide along profile plate, imports sand hopper by stock guide;
B) above-mentioned sand material falls until the knockout stress point of profile plate is worn through always, close throttling valve, stop knockout, the quality of weight scale metering sand material, measure profile plate surface coating wearing quality, the formula that Surface of profile coating abrasion performance is measured is: f=m/ho, wherein, f is barasion coefficient, unit is gram every micron (g/ μm), m is the sand material mass unit that worn out Surface of profile coating consumes is gram (g), and ho is the thickness of Surface of profile coating, and unit is micron (μm);
C) brace table is passed through guide rail upward sliding, slide to bracing frame top, sand material flows into Sheng sand hopper by the sandpipe that goes out of sand hopper, realizes recycling of sand material.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that technical scheme of the present invention is carried out, or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (3)
1. one kind uses the method for sand trial machine testing Surface of profile coating abrasion performance, described sand trial machine comprises bracing frame (1), be arranged on the Sheng sand hopper (2) on bracing frame (1) top, the discharging opening of described Sheng sand hopper (2) is connected with conduit (3) upper end, workpiece is provided with below described conduit (3) lower end, the flow control valve (4) controlling to leak material speed is provided with in described Sheng sand hopper (2), described workpiece is profile plate (5), described profile plate (5) is obliquely installed, described profile plate (5) below is provided with the stock guide (6) knockout being imported sand material Weighing mechanism, described bracing frame (1) is provided with sample bearing (7), described sample bearing (7) is provided with the rotating shaft (8) at adjustment described profile plate (5) angle of inclination, described stock guide (6) is connected on described sample bearing (7), described rotating shaft (8) is extended with the elasticity jig arm (9) of the described profile plate of clamping (5), described stock guide (6) top is provided with pilot pin (10), described pilot pin (10) is in same level position with the knockout stress point of profile plate (5), described testing machine also comprises vertically being stretched to by the discharging opening containing sand hopper (2) leads sand pin (11) in conduit (3), described conduit (3) is provided with throttling valve (12), described sand material Weighing mechanism is arranged on elevating mechanism, described bracing frame (1) is provided with sway brace (13), described sway brace (13) is provided with the guide rail longitudinally arranged along sway brace, described elevating mechanism comprises the brace table (14) of propping sand material Weighing mechanism, the slide block of longitudinal sliding motion on described guide rail is controlled by lead screw transmission mechanism, the sidewall of described brace table is connected with described slide block, described sand material Weighing mechanism comprises weight scale (15), be arranged on the sand hopper (16) on weight scale (15), described sand hopper (16) top is provided with sand inlet, described sand inlet be provided be obliquely installed lead sand plate (17), the tank wall of described sand hopper (16) be provided be communicated with in case go out sandpipe (18), the described entrance point going out sandpipe (18) is provided with the opening/closing operation valve of the import that controls out sandpipe, it is characterized in that: described method comprises the following steps:
A) by the angle of inclination of the rotating shaft adjustment profile plate of sample bearing, and the knockout stress point of profile plate and the distance of containing sand hopper is controlled by pilot pin, sand material loads to be contained in sand hopper, sand material is flowed out by the discharging opening containing sand hopper, along leading the vertical drop in conduit of sand pin, and dropping down onto on profile plate, sand material and then slide to stock guide along profile plate, imports sand hopper by stock guide;
B) above-mentioned sand material falls until the knockout stress point of profile plate is worn through always, closes throttling valve, stops knockout, and the quality of weight scale metering sand material, measures profile plate surface coating wearing quality;
C) brace table is passed through guide rail upward sliding, slide to bracing frame top, sand material flows into Sheng sand hopper by the sandpipe that goes out of sand hopper, realizes recycling of sand material.
2. the method for use sand trial machine testing Surface of profile coating abrasion performance according to claim 1, it is characterized in that: in a step, the angle of inclination of profile plate is 40 °-50 °, and the knockout stress point being controlled profile plate by pilot pin is 0.9-1.1m with the distance of containing sand hopper.
3. the method for use sand trial machine testing Surface of profile coating abrasion performance according to claim 1, it is characterized in that: in b step, the formula that Surface of profile coating abrasion performance is measured is: f=m/ho, wherein, f is barasion coefficient, m is the sand material quality that worn out Surface of profile coating consumes, and ho is the thickness of Surface of profile coating.
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| CN201510344857.XA CN104897498B (en) | 2015-06-19 | 2015-06-19 | A kind of method using sand trail machine testing Surface of profile coating abrasion performance |
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Cited By (7)
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| CN107121349A (en) * | 2017-04-28 | 2017-09-01 | 重庆长安汽车股份有限公司 | A kind of automobile headlamp coating tester of abrasion resistant |
| CN107608207A (en) * | 2017-07-05 | 2018-01-19 | 佛山缔乐视觉科技有限公司 | A kind of aluminium section bar knockout detection method based on machine learning |
| CN108318361A (en) * | 2018-01-10 | 2018-07-24 | 云南电网有限责任公司电力科学研究院 | Super-hydrophobic coat wear-resisting test method based on knockout |
| CN109490125A (en) * | 2018-12-14 | 2019-03-19 | 中天光伏材料有限公司 | A kind of knockout wear-resistant tester and application method with automatic charging |
| CN109855999A (en) * | 2019-01-22 | 2019-06-07 | 中国建材检验认证集团江苏有限公司 | A kind of full-automatic knockout abrasion wear test machine |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN110553942A (en) * | 2019-09-23 | 2019-12-10 | 中节能太阳能科技（镇江）有限公司 | Automatic change wear-resisting testing arrangement of circulation knockout |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121349A (en) * | 2017-04-28 | 2017-09-01 | 重庆长安汽车股份有限公司 | A kind of automobile headlamp coating tester of abrasion resistant |
| CN107608207A (en) * | 2017-07-05 | 2018-01-19 | 佛山缔乐视觉科技有限公司 | A kind of aluminium section bar knockout detection method based on machine learning |
| CN107608207B (en) * | 2017-07-05 | 2020-10-27 | 佛山缔乐视觉科技有限公司 | Aluminum profile shakeout detection method based on machine learning |
| CN108318361A (en) * | 2018-01-10 | 2018-07-24 | 云南电网有限责任公司电力科学研究院 | Super-hydrophobic coat wear-resisting test method based on knockout |
| CN109490125A (en) * | 2018-12-14 | 2019-03-19 | 中天光伏材料有限公司 | A kind of knockout wear-resistant tester and application method with automatic charging |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN109975148B (en) * | 2019-01-15 | 2024-01-26 | 中信戴卡股份有限公司 | Automatic sand grain wearing and tearing device |
| CN109855999A (en) * | 2019-01-22 | 2019-06-07 | 中国建材检验认证集团江苏有限公司 | A kind of full-automatic knockout abrasion wear test machine |
| CN109855999B (en) * | 2019-01-22 | 2024-04-26 | 中国建材检验认证集团江苏有限公司 | Full-automatic shakeout wear-resisting testing machine |
| CN110553942A (en) * | 2019-09-23 | 2019-12-10 | 中节能太阳能科技（镇江）有限公司 | Automatic change wear-resisting testing arrangement of circulation knockout |
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| CN104897498B (en) | 2018-01-12 |
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Denomination of invention: A method for testing the wear resistance of profile surface coating by sand falling tester Effective date of registration: 20220429 Granted publication date: 20180112 Pledgee: Yijin sub branch of Wuhu Jinsheng Rural Commercial Bank Co.,Ltd. Pledgor: WUHU JINGSU INDUSTRIAL Co.,Ltd. Registration number: Y2022980005019 |
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