CN102288542B - System and method for measuring adhesion strength of ice coating on material surface - Google Patents
System and method for measuring adhesion strength of ice coating on material surface Download PDFInfo
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- CN102288542B CN102288542B CN 201110206367 CN201110206367A CN102288542B CN 102288542 B CN102288542 B CN 102288542B CN 201110206367 CN201110206367 CN 201110206367 CN 201110206367 A CN201110206367 A CN 201110206367A CN 102288542 B CN102288542 B CN 102288542B
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Abstract
The invention discloses a system and a method for measuring the adhesion strength of ice coating on a material surface, belonging to the field of ice coating measurement. The system comprises a force applying poise, a tension gauge, an icing mold, a fixing device, a pulling rope, a fixed pulley and a computer, wherein the icing mold is connected with a sample to be measured through ice coating; the sample to be measured is fixed by the fixing device; one end of the pulling rope is connected with the icing mold through the tension gauge, and the other end of the pulling rope is connected with the force applying poise through the fixed pulley; and the data output end of the tension gauge is connected with the computer through a data transmission line. The system for measuring the adhesion strength of ice coating on the material surface disclosed by the invention has a simple structure, the method is easy to operate, and the system and the method are suitable for measuring and analyzing the adhesion force of ice coating on different material surfaces in units such as plants, laboratories and the like.
Description
Technical field
The invention belongs to the icing fields of measurement, be specifically related to a kind of adhesion strength of ice coating on material surface measuring system and method.
Background technology
Icing is a kind of beautiful natural landscape, but be a kind of disaster the material under being exposed to for a long time the outside atmosphere condition, as causing mechanical load to increase behind the material surface icing such as overhead transmission line, aircraft wing, communication steel tower, cause the transmission line of electricity broken string or fall the generation of tower etc., the security incidents such as the aircraft load is overweight or it is unequal to load, communication collapse of iron tower or distortion.Adopt new coating to suppress and reduce the adhesion strength of material surface icing, to be conducive to suppress and alleviate formation and the growth of material surface icing, simultaneously also be conducive to the material surface deicing and deice carrying out of work, also become thus mainly one of the selection measures of industry anti-icing and deicing such as electric power, communication, aviation.In the anti-icing process of choice and application coating, the icing adhesion strength of coating surface is carried out test analysis, the preferred less coating material of icing adhesion strength will more be conducive to carrying out of material surface anti-icing and deicing work.
In order to test the icing adhesion strength on different materials surface, researchist's design has both at home and abroad also prepared different icing adhesion force measuring systems, such as centrifugal force method icing adhesion strength measuring system, cylinder push or pull icing adhesion strength measurement mechanism, the bending method icing adhesion strength measurement mechanism etc. that fractures.But complex structure, specimen structure are single, afterburner system needs the aspects such as the higher linearity, complicated operation shortcoming that these measuring systems all exist, for this reason these existing icing adhesion strength testing apparatuss and be unfavorable for carrying out of adhesion strength of ice coating on material surface research and test job.
Summary of the invention
Deficiency for above-mentioned existing icing adhesion strength measuring system, the invention provides a kind of small-sized, the surperficial icing adhesion strength of Portable material measuring system, particularly for the measuring system of plain conductor coating surface icing adhesion strength, this system architecture is simple, easy to operate, can realize the difformity adhesion strength of ice coating on material surface is measured.
A kind of adhesion strength of ice coating on material surface measuring system, this system comprise application of force counterweight, tautness meter, freeze mould, stationary installation, traction rope, fixed pulley and computing machine;
When carrying out the measurement of icing adhesion strength, its annexation is:
Freeze mould and testing sample links together by icing, testing sample is fixed by stationary installation, traction rope one end through tautness meter with freeze mould and link to each other, the other end is walked around fixed pulley and is linked to each other with application of force counterweight, and the data output end of tautness meter links to each other with computing machine through the tension measurement instrument by data line.
The described mould that freezes is generally open containers, is generally made by stainless steel, and described open containers can be the container of bottomless both ends open, also can be an end opening, and the other end has the container at the end, in its bottom the water filling entrance can be set.As shown in Figure 2, the cross sectional shape of open containers comprises square, rectangle, circle, arc, falcate etc., and the typical case is frozen mould 2cm * 2cm, 2cm * 3cm, 3cm * 4cm, Ф 2cm, Ф 3cm, Ф 4cm, Ф 5cm equal-specification.The mould that freezes of measure traverse line is that an end opening is the container (Fig. 2 (f)) of arcuate recess, and 3.14cm * 2cm, 1.57cm * 2cm equal-specification is arranged, and wherein, 3.14cm and 1.57cm refer to the arc length of arch, and 2cm refers to the length of groove.
Described application of force counterweight is comprised of the different standard test weight of a large amount of quality, described test comprises that with standard test weight weight is respectively the standard test weight of 5g, 10g, 20g, 50g, 100g, 200g, 300g, 500g, 1000g etc., be used for realizing the effect of 49mN, 98 mN, 196 mN, 490 mN, 980 mN, 1.96 N, 2.94N, the external force such as 4.9N, 9.8N, realize that by the various combination mode linear pulling force increases.
Described pulling force is counted the digital display type tautness meter, and its range can be 50N, 200N or 1000N etc.
Described stationary installation can be selected the jaw shape stationary installation that forms by regulating draw-in groove and holding clamp, but the length between vices free adjustment, to realize fixing the different length testing sample.
Described traction rope is the less rope of elasticity, and such as steel wire, steel cable, cotton thread, the rope made of hemp etc., the diameter of described fixed pulley can be Ф 10cm, Ф 20cm or Ф 30cm equidimension.
The method that above-mentioned measuring system is carried out the measurement of icing adhesion strength is:
(1) carries out icing with freezing mould on the testing sample surface, make and freeze mould and testing sample freezes together.
(2) will with freeze the testing sample that mould freezes together and fix by stationary installation, then utilize traction rope will freeze mould and link to each other with application of force counterweight with fixed pulley through tautness meter, and the data output end of tautness meter is linked to each other with computing machine through the tension measurement instrument by data line.
(3) contact area that mould and testing sample are frozen in input in computing machine, and monitor freezing the unit area pulling force that mould bears, the pulling force that the tautness meter output signal applies application of force counterweight side through the tension measurement instrument is sent in real time computing machine and carries out stored record, increase gradually the quality of counterweight until freeze mould and the testing sample surface between come off, the general assembly (TW) of record application of force counterweight also reads the icing adhesion strength of testing sample from computing machine.
The invention has the beneficial effects as follows and designed a kind of material surface icing adhesion force measuring system simple in structure, easy-operating, be applicable to the units such as factory, laboratory to the Measurement and analysis of different materials surface icing adhesion, by adopting the Different Weight standard test weight to realize the effect that linear pulling force increases, the size of freezing mould by adjustment has realized the raising of measuring accuracy.
Description of drawings
Fig. 1 icing adhesion strength test system structure figure;
Fig. 2 icing adhesion strength is tested the mould that freezes of usefulness, and a cross section is the rectangular mould that freezes, and the b cross section is the foursquare mould that freezes, the c cross section is the circular mould that freezes, the d cross section is the semicircular mould that freezes, and the e cross section is the mould that freezes of falcate, and the f opening is the mould that freezes of arcuate recess;
The used mould that freezes among Fig. 3 embodiment 1;
The used mould that freezes among Fig. 4 embodiment 2;
Number in the figure: 1 fixed pulley, 2 application of force counterweights, 3 regulate draw-in groove, 4 holding clamps, 5 freeze mould, 5-1 draw ring, 5-2 water filling entrance, 6 testing samples, 7 tautness meters, 8 tension measurement instrument, 9 computing machines, 10 traction ropes.
Embodiment
The following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
Embodiment 1
As shown in Figure 1, the adhesion strength of ice coating on material surface measuring system is by fixed pulley 1, and application of force counterweight 2 is regulated draw-in groove 3, and holding clamp 4 freezes mould 5, traction rope 10, and tautness meter 7, tension measurement instrument 8 and computing machine 9 form.
The described mould 5 that freezes is the open containers that are prepared into by stainless steel, the cross sectional shape of open containers is rectangle, and specification is 2cm * 3cm, and open containers bottom centre is provided with draw ring 5-1, can link to each other with tautness meter 7 by traction rope 10, the bottom also is provided with water filling entrance 5-2(such as Fig. 3).
Testing sample 6 is rectangle aluminium sheets that length and width are respectively 4cm, 3cm.
Regulate draw-in groove 3 and holding clamp 4 forms stationary installations, regulate draw-in groove 3 and be comprised of two stands, two stands is installed on the holding clamp 4, is the jaw shape, and length between vices can regulate, in order to fixing testing sample.
Described traction rope 10 is steel wire.
Described application of force counterweight 2 is comprised of the different standard test weight of a large amount of quality, and described test comprises that with standard test weight weight is respectively the standard test weight of 5g, 10g, 20g, 50g, 100g, 200g, 300g, 500g, 1000g.
Described tautness meter 7 is that range is the digital display type tautness meter of 1000N.
The method of carrying out the measurement of icing adhesion strength is:
1, at first utilize and freeze mould 5 and carry out icing on testing sample 6 surfaces: make that to freeze mould 5 opening down and place above the testing sample 6, be put in the growth cabinet, the temperature setting of growth cabinet is set to-6 ℃, cooling 30min, make and freeze mould 5, testing sample 6 temperature reach consistent with the climate box temperature, then by water filling entrance 5-2 toward freezing a small amount of water of injection in the mould 5, to form the thick moisture film of 1 ~ 2mm, until moisture film freeze 30min make freeze between mould 5 and the testing sample 6 the sealing contact after, fill with water by water filling entrance 5-2 toward freezing in the mould 5 again, and freeze 2h.
2, will with freeze mould 5 and freeze good testing sample 6 and move in the stationary installations, and adjust regulate draw-in groove 3 testing sample 6 is fixed and freeze mould 5 surfaces with regulate draw-in groove 3 and do not rub.Then utilize steel wire will freeze mould 5 and link to each other with application of force counterweight 2 with fixed pulley 1 through tautness meter 7, the data output end with tautness meter 7 links to each other with computing machine 9 through tension measurement instrument 8 by data line simultaneously.
Except tension measurement instrument 8 and computing machine 9, other device all is in the growth cabinet.
3, open tension measurement instrument 8 and computing machine 9, and (area is 6cm to input the contact area of freezing mould 5 and testing sample 6 in computing machine 9
2), and begin to monitor freezing the unit area pulling force that mould 5 bears.Careful and evenly increase the quality of counterweight 2 until freeze mould 5 with testing sample 6 surfaces between come off, record the general assembly (TW) of counterweight 2 and read the icing adhesion strength of testing sample 6 from computing machine 9.
Embodiment 2
The adhesion strength of ice coating on material surface measuring system is by fixed pulley 1, and application of force counterweight 2 is regulated draw-in groove 3, and holding clamp 4 freezes mould 5, tautness meter 7, and traction rope 10, tension measurement instrument 8 and computing machine 9 form.
The described mould 5 that freezes is the open containers that are prepared into by stainless steel, and the cross sectional shape of open containers is circular, and specification is Ф 3cm, and namely the diameter in cross section is 3cm.Described open containers is the container of bottomless both ends open, container side can link to each other with traction rope 10 (such as Fig. 4).
Testing sample 6 is that diameter is the circular epoxy plate of 4cm.
Regulate draw-in groove 3 and holding clamp 4 forms stationary installations, regulate draw-in groove 3 and be comprised of two stands, two stands is installed on the holding clamp 4, is the jaw shape, and length between vices can regulate, in order to fixing testing sample 6.
Described traction rope 10 is cotton thread.
Described application of force counterweight 2 is comprised of the different standard test weight of a large amount of quality, and described test comprises that with standard test weight weight is respectively the standard test weight of 5g, 10g, 20g, 50g, 100g, 200g, 300g, 500g, 1000g.
Described tautness meter 7 is that range is the digital display type tautness meter of 1000N.
The method of carrying out the measurement of icing adhesion strength is:
1, at first utilization is frozen mould 5 and is carried out icing on testing sample 6 surfaces: will freeze mould 5 and place above the testing sample 6, and be put in the growth cabinet, the temperature setting of growth cabinet is set to-6 ℃, cooling 30min, make freeze mould 5, testing sample 6 temperature reach consistent with the climate box temperature, then toward freezing a small amount of water of injection in the mould 5, to form the thick moisture film of 1 ~ 2mm, until moisture film freeze 30min make freeze between mould 5 and the testing sample 6 the sealing contact after, fill with water toward freezing in the mould 5 again, and freeze 2h.
2, will with freeze mould 5 and freeze good testing sample 6 and move in the stationary installations, and adjust regulate draw-in groove 3 testing sample 6 is fixed and freeze mould 5 surfaces with regulate draw-in groove 3 and do not rub.Then utilize cotton thread will freeze mould 5 and link to each other with tautness meter 7, and link to each other with application of force counterweight 2 behind fixed pulley 1, the data output end with tautness meter 7 links to each other with computing machine 9 through tension measurement instrument 8 by data line simultaneously.
Except tension measurement instrument 8 and computing machine 9, other device all is in the growth cabinet.
3, open tension measurement instrument 8 and computing machine 9, and (area is about 7cm to input the contact area of freezing mould 5 and testing sample 6 in computing machine 9
2), and begin to monitor freezing the unit area pulling force that mould 5 bears.Careful and evenly increase the quality of counterweight 2 until freeze mould 5 with testing sample 6 surfaces between come off, record the general assembly (TW) of counterweight 2 and read the icing adhesion strength of testing sample 6 from computing machine 9.
Embodiment 3
The adhesion strength of ice coating on material surface measuring system is by fixed pulley 1, and application of force counterweight 2 is regulated draw-in groove 3, and holding clamp 4 freezes mould 5, traction rope 10, and tautness meter 7, tension measurement instrument 8 and computing machine 9 form.
Testing sample 6 is aluminum conductor, and length is 10cm, and the conductor cross-section radius is 2cm.
Freeze mould 5 and be the container of both ends open, and an end opening is shaped as arcuate recess (such as Fig. 2 (f)), in the present embodiment, described arch is 1/4 circle, and radius is 2cm, and the length of groove is 2cm, and the specification of namely freezing mould is 3.14cm * 2cm.The side of freezing mould 5 can link to each other with traction rope 10.
Regulate draw-in groove 3 and holding clamp 4 forms stationary installations, regulate draw-in groove 3 and be comprised of two stands, two stands is installed on the holding clamp 4, is the jaw shape, and length between vices can regulate, in order to fixing testing sample 6.
Described traction rope 10 is steel wire.
Described application of force counterweight 2 is comprised of the different standard test weight of a large amount of quality, and described test comprises that with standard test weight weight is respectively the standard test weight of 5g, 10g, 20g, 50g, 100g, 200g, 300g, 500g, 1000g.
Described tautness meter 7 is that range is the digital display type tautness meter of 1000N.
The method of carrying out the measurement of icing adhesion strength is:
1, utilization is frozen mould 5 and is carried out icing on the aluminum conductor surface: aluminum conductor and freeze mould 5 and be put in the growth cabinet, to freeze mould 5 is positioned over above the aluminum conductor, and the aluminum conductor embedding is frozen in the arcuate recess of mould 5, the temperature setting of growth cabinet is set to-6 ℃, cooling 30min, make and freeze mould 5, it is consistent with the climate box temperature that the aluminum conductor temperature reaches, then toward freezing a small amount of water of injection in the mould 5, to form the thick moisture film of 1 ~ 2mm, until moisture film freeze 30min make freeze between mould 5 and the aluminum conductor sealing contact after, fill with water toward freezing mould 5 again, and freeze 2h.
2, will with freeze mould 5 and freeze good aluminum conductor and move in the stationary installation, and adjust regulate draw-in groove 3 aluminum conductor is fixed and freeze mould 5 surfaces with regulate draw-in groove 3 and do not rub.Then utilize steel wire will freeze mould 5 and link to each other with application of force counterweight 2 with fixed pulley 1 through tautness meter 7, the data output end with tautness meter 7 links to each other with computing machine 9 through tension measurement instrument 8 by data line simultaneously.
Except tension measurement instrument 8 and computing machine 9, other device all is in the growth cabinet.
3, open tension measurement instrument 8 and computing machine 9, and input is frozen the contact area of mould 5 and aluminum conductor (area is: (2 π * 2cm/4) * 2cm=6.3cm in computing machine 9
2), and begin to monitor freezing the unit area pulling force that mould 5 bears.Careful and evenly increase the quality of counterweight 2 until freeze mould 5 and come off with the aluminum conductor surface, record the general assembly (TW) of counterweight 2 and read the icing adhesion strength of aluminum conductor from computing machine 9.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. adhesion strength of ice coating on material surface measuring system, it is characterized in that: this system comprises application of force counterweight (2), tautness meter (7), freeze mould (5), stationary installation, traction rope (10), fixed pulley (1) and computing machine (9), annexation is: freeze mould (5) and testing sample (6) links together by icing, testing sample (6) is fixed by stationary installation, traction rope (10) one ends through tautness meter (7) with freeze mould (5) and link to each other, the other end is walked around fixed pulley (1) and is linked to each other with application of force counterweight (2), and the data output end of tautness meter (7) links to each other with computing machine (9) through tension measurement instrument (8) by data line.
2. measuring system according to claim 1 is characterized in that: described to freeze mould (5) be open containers.
3. measuring system according to claim 2 is characterized in that: described open containers is the container of bottomless both ends open; Or described open containers is an end opening, and the other end has the container at the end, is provided with the water filling entrance in its bottom.
4. measuring system according to claim 1, it is characterized in that: the described mould (5) that freezes is made by stainless steel.
5. measuring system according to claim 2, it is characterized in that: the described cross sectional shape that freezes mould (5) is square, rectangle, circle, arc or falcate, and the mould (5) that freezes that is used for measure traverse line is that an end opening is the container of arcuate recess.
6. measuring system according to claim 5, it is characterized in that: the specification of freezing mould (5) is 2cm * 2cm, 2cm * 3cm, 3cm * 4cm, Ф 2cm, Ф 3cm, Ф 4cm, Ф 5cm, 3.14cm * 2cm or 1.57cm * 2cm.
7. measuring system according to claim 1, it is characterized in that: described tautness meter (7) is the digital display type tautness meter.
8. measuring system according to claim 1 is characterized in that: described stationary installation forms by regulating draw-in groove (3) and holding clamp (4), is the jaw shape, but the length between vices free adjustment.
9. measuring system according to claim 1 is characterized in that: described traction rope (10) is steel wire, steel cable, cotton thread or the rope made of hemp.
10. adhesion strength of ice coating on material surface measuring method: it is characterized in that: the method comprises the steps:
(1) carries out icing with freezing mould (5) on testing sample (6) surface, make to freeze between mould (5) and testing sample (6) to freeze together;
(2) will with freeze the testing sample (6) that mould (5) freezes together and fix by stationary installation, then utilize traction rope (10) will freeze mould (5) and link to each other with application of force counterweight (2) with fixed pulley (1) through tautness meter (7), and the data output end of tautness meter (7) is linked to each other with computing machine (9) through tension measurement instrument (8) by data line;
(3) contact area that mould (5) and testing sample (6) are frozen in input in computing machine (9), and monitor freezing the unit area pulling force that mould (5) bears, the pulling force that tautness meter (7) output signal applies application of force counterweight (2) side through tension measurement instrument (8) is sent in real time computing machine (9) and carries out stored record, increase gradually the quality of counterweight until freeze mould (5) and testing sample (6) surface between come off, the general assembly (TW) of record application of force counterweight (2) also reads the icing adhesion strength of testing sample (6) from computing machine (9).
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| CN 201110206367 CN102288542B (en) | 2011-07-22 | 2011-07-22 | System and method for measuring adhesion strength of ice coating on material surface |
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| US20060236778A1 (en) * | 2005-04-20 | 2006-10-26 | The Magni Group, Inc. | Measuring assembly for ice adhesion |
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