CN103257104B - A kind of protective materials cold-and-heat resistent pulsating fatigue test unit - Google Patents

A kind of protective materials cold-and-heat resistent pulsating fatigue test unit Download PDF

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Publication number
CN103257104B
CN103257104B CN201210036249.9A CN201210036249A CN103257104B CN 103257104 B CN103257104 B CN 103257104B CN 201210036249 A CN201210036249 A CN 201210036249A CN 103257104 B CN103257104 B CN 103257104B
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China
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specimen holder
rotating equipment
protective materials
lift rotating
test unit
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CN201210036249.9A
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Chinese (zh)
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CN103257104A (en
Inventor
陆卫中
高英
郭旭
李京
张立新
史杰智
李晓东
刘宝昌
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中国科学院金属研究所
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Abstract

A kind of protective materials cold-and-heat resistent pulsating fatigue test unit, it includes following structure: electric-control system (1) and lift rotating equipment (2), specimen holder, test flume; Wherein: electric-control system (1) and lift rotating equipment (2) connect as one; The lift rotating equipment (2) that axis of rotation is arranged at vertical direction is fixedly installed specimen holder, and on specimen holder, fixed and arranged has the sample cell (5) for placing sample (6); Test flume for holding sample (6) is arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment (2).Automaticity of the present invention is high, and temperature stability is good, and technique effect is excellent.

Description

A kind of protective materials cold-and-heat resistent pulsating fatigue test unit

Technical field

The present invention relates to structural design and the applied technical field of protective materials Fast Evaluation experimental provision, specifically provide a kind of protective materials cold-and-heat resistent pulsating fatigue test unit.

Background technology

In prior art, the pipeline heat exchange transport system of oil transportation, gas, water liquid system comprises the accessory such as the pump housing, valve inwall and produces corrosion and wearing and tearing for preventing inwall from transporting medium, and the general inner surfaces protect material that adopts is protected.Because the general serviceability temperature of liquid medium of heat-exchange system delivered inside constantly fluctuates within the scope of-25 DEG C ~ 100 DEG C, the temperature difference reaches 20 DEG C ~ 100 DEG C in short-term, and quick-cooling, heating alternating temperature-changing period of change is the environment for use of >=10 seconds.Urgent need will develop a kind of test unit can simulating above-mentioned environment for use, requires that the labour intensity of experimental implementation person is little simultaneously, can realize the requirement of robotization, long run test.

The device majority carrying out thermocycling for protective materials in the market tests under air ambient, as various high-low temperature tester, it can simulate the aging and degraded of protective materials under air environment, protective materials failure procedure under the solid environment of aqueous solution or water and rule can not be had by real simulation, and the time of temperature alternating is longer, complete a cycle period long, inhibit the simulation correlativity and quick validity of evaluating protective materials.

Patent of invention number discloses a kind of product thermocycling experiment device for ZL200720008627.7, it is characterized in that: comprise a base, and one is placed in the hot and cold water tank that base transfers, a work proving installation, the hollowed-out vessel of a splendid attire workpiece.Have longitudinal vertical cylinder, a transverse horizontal motion cylinder workpiece proving installation drive workpiece do left and right move up and down, drive workpiece repeatedly immerse in hot water, cold water, realize the test of workpiece cool-hot fatigue degree.

Experimental facilities about the cold and hot Rapid Circulation of high/low temperature in existing measuring technology is all not ideal enough, and therefore, people expect the protective materials cold-and-heat resistent pulsating fatigue test unit obtaining a kind of technological assessment better effects if.

Summary of the invention

The object of this invention is to provide a kind of technique effect better protective materials cold-and-heat resistent pulsating fatigue test unit.

A kind of protective materials cold-and-heat resistent of the present invention pulsating fatigue test unit, is characterized in that: described protective materials cold-and-heat resistent pulsating fatigue test unit specifically includes following structure: electric-control system 1 and lift rotating equipment 2, specimen holder, test flume; Wherein: electric-control system 1 and lift rotating equipment 2 connect as one; The lift rotating equipment 2 that axis of rotation is arranged at vertical direction is fixedly installed specimen holder, and on specimen holder, fixed and arranged has the sample cell 5 for placing sample 6;

Test flume for holding sample 6 is arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment 2.

Protective materials cold-and-heat resistent pulsating fatigue test unit of the present invention, also claimed following preferred content:

Described specimen holder has two groups, is respectively: specimen holder A3, specimen holder B4; Above-mentioned two groups of specimen holders all link together with lift rotating equipment 2 and along the circumferential direction the two staggers 180 ° mutually in the both sides being arranged in lift rotating equipment 2 rotation; Specimen holder A3 and specimen holder B4 is fixedly installed 2-12 sample cell 5;

Test flume for holding sample 6 is specially two: high temperature groove 7, cryostat, 8; The two is all arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment 2 and along the circumferential direction the two staggers 180 ° mutually.

Described protective materials cold-and-heat resistent pulsating fatigue test unit meets following requirement:

Specimen holder A3 and specimen holder B4 is fixedly installed respectively 4-8 sample cell 5;

The housing of described high temperature groove 7, cryostat, 8 is all provided with heat-insulation layer, and top is all provided with the gland bonnet 15 that can carry out on-off action, and it is also all provided with corrosion-resistant ebullator 9, constant temperature and alarm controller 12; Wherein:

High temperature groove 7 inner chamber bottom is also provided with corrosion-resistant ebullator 9 and the electrothermal tube 14 for heating test(ing) medium, high temperature groove 7 is also provided with the automatic Accelerated Life liquid device 10 of constant level Altitude control;

Cryostat, 8 inner chamber bottom is also provided with corrosion-resistant ebullator 9 and the compression refrigeration coil pipe 13 for carrying out evenly refrigeration to test(ing) medium, cryostat, 8 is also provided with the automatic Accelerated Life liquid device 10 of constant level Altitude control.

In described protective materials cold-and-heat resistent pulsating fatigue test unit, lift rotating equipment 2 is " T " character form structure, and wherein, the turning axle of the vertical layout of bottom is connected with electric-control system 1, and the two ends of " one " character form structure on top are fixedly connected with specimen holder.

In described protective materials cold-and-heat resistent pulsating fatigue test unit, electric-control system 1 also connects the system of photoelectric counter 11 be furnished with for setting and calculate cold cycling number of times.

The present invention distinguishes Control experiment sample in the soak time of high temperature groove 7 with cryostat, 8 by electric-control system 1 and lift rotating equipment 2, and cold cycling number of times adopts system of photoelectric counter 11 to carry out setting and counting.

Apparatus of the present invention can simulate the development trend of the performances such as ageing-resistant, the degraded of coating under the cold-and-heat resistent pulse dynamic temperature change of protective materials under water environment well, simultaneously can be coated in the synchronism detection that protective materials water resisting property on base material and adhesion changes by Simultaneous Determination, be the test unit of the performance quality of a kind of rapid evaluation protective materials under arms under surrounding medium.

Before this, China also do not have can development test and evaluate the test unit that the aging and degradation property under quick-cooling, heating alternating temperature-changing changing environment resisted by protective materials in simulation test liquid medium under the high frequency heat pulse environment in Simulated Water environment.

Technology contents essence of the present invention is a kind of device for the anti-high frequency heat pulsating fatigue test of protective coating (coating), automatic elevating rotary in this device, send high-frequency pulse, an experimental period of carrying out thermal cycling test can be 20 ~ 30 seconds usually, can do 100,000 cycle experimental continuously.In described two special specimen holders, on each specimen holder, concentric is evenly manufactured with multiple groove: sample cell 5, and each sample cell 5 can install multiple sample 6, can the coating ageing properties of resistance to temperature of the multiple sample 6 of Simultaneous Determination.

Requirement in high temperature groove 7: maximum temperature 100 DEG C, accuracy of temperature control ± 2 DEG C, be furnished with the automatic Accelerated Life liquid device 10 of level control (LC) and warning device, and temperature and the salinity of thermopair and conductivity meter difference Control experiment medium can be used, adopt corrosion-resistant ebullator 9 pairs of test(ing) mediums to stir and disturbance in groove, simulation coating is in the flowing of the media such as seawater.

Requirement in cryostat, 8: minimum temperature-25 DEG C, accuracy of temperature control ± 2 DEG C, be furnished with the automatic Accelerated Life liquid device 10 of level control (LC) and warning device, inside is connected with compression mechanism cooling coil 13 pairs of test(ing) mediums and evenly freezes, and adopts corrosion-resistant ebullator 9 pairs of test(ing) mediums to stir and disturbance in groove.

The advantage of the present invention and related art scheme thereof:

It is wide that this device has range of temperature :-25 DEG C ~ 100 DEG C, accuracy of temperature control is high, and the alternating hot and cold temperature difference can reach >=70 DEG C, and cold and hot swap time fast and precision high; Automatically can control high temperature groove 7 and also automatically add experimental solutions with the liquid level in cryostat, 8.Indoor accelerated test can be carried out by high frequency heat pulse environment truly in Simulated Water environment to antiseptic properties such as the water absorptivity of coating and wet adhesions.For the development of heat resistanceheat resistant pulse anticorrosive paint provides experimental data accurately and reliably; Assess a difficult problem for the important antiseptic property of coating under solving lab simulation seawater high frequency heat pulse environment, filled up the blank of domestic technology, and provide test data for correlative study.

Advantage of the present invention:

The key distinction of the present invention and prior art have following some:

1, the present invention is preferably provided with special two or more specimen holders, and each specimen holder has multiple groove: sample cell 5, can install the sample 6 of multiple test, more than the sample size can laid in prior art.

The present invention has the automatic lifting device that machinery or hydraulic-pneumatic mode drive, preferably requirement can be specifically adopt spiral automatically to decline and rotating machinery structure further, equipment is simple, but the residue viscous liquid on sample can be shaken off simultaneously, do not affect the composition of two tanks and the impact on temperature.

High-frequency pulse of the present invention, cold cycling experimental period is minimum can reach 10 seconds; And prior art immediate equipment cold cycling requires to be at least 80 ~ 100 seconds an experimental period.

High/low temperature groove in the present invention adopts corrosion-resistant ebullator to stir and disturbance test medium, and simulation coating, at the flowings such as aqueous medium, scouring effect, makes the homogeneity of levels liquid medium temperature better simultaneously.High/low temperature groove is furnished with servicing unit and the warning devices such as liquid level maintenance and temperature survey, and we in use constantly can supplement experimental liquid automatically, it further ensures the stability of high and low temperature groove temperature.

Accompanying drawing explanation

Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:

Fig. 1 is structural representation of the present invention;

Fig. 2 is present device schematic diagram;

Fig. 3 is inventive samples frame schematic diagram.

Embodiment

Embodiment 1

As Fig. 1, the anti-high frequency heat pulsating fatigue of coating shown in 2 test unit, it comprises an electric-control system 1, lift rotating equipment 2, two special specimen holders: specimen holder A3 and specimen holder B4, two test flumes: high temperature groove 7 and cryostat, 8.

Specimen holder A3 and specimen holder B4 is vertically fixed on two, the left and right support of lift rotating equipment respectively.The electric-control system 1 automatically control cylinder lift rotating equipment 2 specimen holder A3 that drives two to install coating sample (6) and specimen holder B4 does and rises, to decline and high-frequency rotating moves counterclockwise.Described cryostat, 8 and high temperature groove 7 are positioned at the vertical lower of two specimen holders.

The course of work illustrates:

Heating and condensing unit is started in advance before experiment starts, then high temperature groove temperature is set to 95 DEG C ± 2 DEG C, low groove temperature is set to 25 DEG C ± 2 DEG C, when temperature reaches design temperature, start electric-control system 1 and automatically control lift rotating equipment 2 vertical downward movement, two specimen holders and specimen holder A3 and specimen holder B4 to be immersed respectively in high temperature groove 7 and cryostat, 8 after 10 seconds, two specimen holders and specimen holder A3 and specimen holder B4 are risen simultaneously and shifts out high temperature 7 and cryostat, 8, and quick high-frequency rotating 180 ° counterclockwise, two of transposition specimen holders and specimen holder A3 and specimen holder B4 to be moved downward simultaneously again immerse respectively in cryostat, 7 and high temperature groove 8 after 10 seconds, promote specimen holder again and shift out high temperature 7 and cryostat, 8, and quick high-frequency rotating 180 ° counterclockwise, complete the thermal cycling test of one-period.Lift rotating equipment iterative motion like this, through 50,000 times, after 100,000 thermal cycling tests, the experimental datas such as the water absorptivity of testing coating sample and wet adhesion.

Embodiment 2

A kind of protective materials cold-and-heat resistent pulsating fatigue test unit, described protective materials cold-and-heat resistent pulsating fatigue test unit specifically includes following structure: electric-control system 1 and lift rotating equipment 2, two specimen holders and specimen holder A3 and specimen holder B4, test flume; Wherein: electric-control system 1 and lift rotating equipment 2 connect as one; The lift rotating equipment 2 that axis of rotation is arranged at vertical direction is fixedly installed specimen holder, and on specimen holder, fixed and arranged has the sample cell 5 for placing sample 6;

Test flume for holding sample 6 is arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment 2.

Protective materials cold-and-heat resistent pulsating fatigue test unit described in the present embodiment, also includes following content and requires:

Described specimen holder has two groups, is respectively: specimen holder A3, specimen holder B4; Above-mentioned two groups of specimen holders all link together with lift rotating equipment 2 and along the circumferential direction the two staggers 180 ° mutually in the both sides being arranged in lift rotating equipment 2 rotation; Specimen holder A3 and specimen holder B4 is fixedly installed 6 sample cells 5;

Test flume for holding sample 6 is specially two: high temperature groove 7, cryostat, 8; The two is all arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment 2 and along the circumferential direction the two staggers 180 ° mutually.

Described protective materials cold-and-heat resistent pulsating fatigue test unit meets following requirement:

The housing of described high temperature groove 7, cryostat, 8 is all provided with heat-insulation layer, and top is all provided with the gland bonnet 15 that can carry out on-off action, and it is also all provided with corrosion-resistant ebullator 9, constant temperature and alarm controller 12; Wherein:

High temperature groove 7 inner chamber bottom is also provided with corrosion-resistant ebullator 9 and the electrothermal tube 14 for heating test(ing) medium, high temperature groove 7 is also provided with the automatic Accelerated Life liquid device 10 of constant level Altitude control;

Cryostat, 8 inner chamber bottom is also provided with corrosion-resistant ebullator 9 and the compression refrigeration coil pipe 13 for carrying out evenly refrigeration to test(ing) medium, cryostat, 8 is also provided with the automatic Accelerated Life liquid device 10 of constant level Altitude control.

In described protective materials cold-and-heat resistent pulsating fatigue test unit, lift rotating equipment 2 is " T " character form structure, and wherein, the turning axle of the vertical layout of bottom is connected with electric-control system 1, and the two ends of " one " character form structure on top are fixedly connected with specimen holder.

In described protective materials cold-and-heat resistent pulsating fatigue test unit, electric-control system 1 also connects the system of photoelectric counter 11 be furnished with for setting and calculate cold cycling number of times.

The present embodiment distinguishes Control experiment sample in the soak time of high temperature groove 7 with cryostat, 8 by electric-control system 1 and lift rotating equipment 2, and cold cycling number of times adopts system of photoelectric counter 11 to carry out setting and counting.

The present embodiment device can simulate the development trend of the performances such as ageing-resistant, the degraded of coating under the cold-and-heat resistent pulse dynamic temperature change of protective materials under water environment well, simultaneously can be coated in the synchronism detection that protective materials water resisting property on base material and adhesion changes by Simultaneous Determination, be the test unit of the performance quality of a kind of rapid evaluation protective materials under arms under surrounding medium.

Embodiment 3

The present embodiment is substantially identical with embodiment 2 content, and its difference is:

Specimen holder A3 and specimen holder B4 is fixedly installed 2 sample cells 5.

Embodiment 4

The present embodiment is substantially identical with embodiment 2 content, and its difference is:

Specimen holder A3 and specimen holder B4 is fixedly installed 12 sample cells 5.

Claims (3)

1. a protective materials cold-and-heat resistent pulsating fatigue test unit, described protective materials cold-and-heat resistent pulsating fatigue test unit specifically includes following structure: electric-control system (1) and lift rotating equipment (2), specimen holder, test flume; Wherein: electric-control system (1) and lift rotating equipment (2) connect as one; The lift rotating equipment (2) that axis of rotation is arranged at vertical direction is fixedly installed specimen holder, and on specimen holder, fixed and arranged has the sample cell (5) for placing sample (6);
Test flume for holding sample (6) is arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment (2);
Described specimen holder has two groups, is respectively: specimen holder A (3), specimen holder B (4); Above-mentioned two groups of specimen holders all link together with lift rotating equipment (2) and along the circumferential direction the two staggers 180 ° mutually in the both sides being arranged in lift rotating equipment (2) rotation; Specimen holder A (3) and specimen holder B (4) is fixedly installed sample cell (5);
Test flume for holding sample (6) is specially two: high temperature groove (7), cryostat, (8); The two is all arranged in the below of the specimen holder rotate path outside the rotation of lift rotating equipment (2) and along the circumferential direction the two staggers 180 ° mutually;
It is characterized in that: described protective materials cold-and-heat resistent pulsating fatigue test unit meets following requirement:
Specimen holder A (3) and specimen holder B (4) is fixedly installed respectively 4-8 sample cell (5);
The housing of described high temperature groove (7), cryostat, (8) is all provided with heat-insulation layer, top is all provided with the gland bonnet (15) that can carry out on-off action, high temperature groove (7), cryostat, (8) is also all provided with corrosion-resistant ebullator (9), constant temperature and alarm controller (12); Wherein:
High temperature groove (7) inner chamber bottom is also provided with corrosion-resistant ebullator (9) and the electrothermal tube (14) for heating test(ing) medium, high temperature groove (7) is also provided with the automatic Accelerated Life liquid device (10) of constant level Altitude control;
Cryostat, (8) inner chamber bottom is also provided with corrosion-resistant ebullator (9) and the compression refrigeration coil pipe (13) for carrying out evenly refrigeration to test(ing) medium, cryostat, (8) is also provided with the automatic Accelerated Life liquid device (10) of constant level Altitude control.
2. according to protective materials cold-and-heat resistent pulsating fatigue test unit described in claim 1, it is characterized in that: in described protective materials cold-and-heat resistent pulsating fatigue test unit, lift rotating equipment (2) is " T " character form structure, wherein, the turning axle of the vertical layout of bottom is connected with electric-control system (1), and the two ends of " one " character form structure on top are fixedly connected with specimen holder.
3. according to protective materials cold-and-heat resistent pulsating fatigue test unit described in claim 2, it is characterized in that: in described protective materials cold-and-heat resistent pulsating fatigue test unit, electric-control system (1) also connects the system of photoelectric counter (11) be furnished with for setting and calculate cold cycling number of times.
CN201210036249.9A 2012-02-17 2012-02-17 A kind of protective materials cold-and-heat resistent pulsating fatigue test unit CN103257104B (en)

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CN106124332B (en) * 2016-06-12 2019-01-11 中国民航大学 Temperature control fatigue tester
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CN108732197A (en) * 2018-03-10 2018-11-02 芜湖特种电线电缆产品质量监督检验中心 A kind of hot and cold alternation circulation test device of high-tension cable
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