CN101914292A - Sensitivity similar material and preparation method thereof - Google Patents
Sensitivity similar material and preparation method thereof Download PDFInfo
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- CN101914292A CN101914292A CN 201010255720 CN201010255720A CN101914292A CN 101914292 A CN101914292 A CN 101914292A CN 201010255720 CN201010255720 CN 201010255720 CN 201010255720 A CN201010255720 A CN 201010255720A CN 101914292 A CN101914292 A CN 101914292A
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- paraffin
- vaseline
- similar material
- sensitivity
- carbon fiber
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Abstract
The invention relates to a sensitivity similar material and a preparation method thereof. In the method, Vaseline, paraffin, conductive carbon black, powdered rubber and short carbon fiber are adopted as raw materials in a mass proportion; and the method comprises the following steps of: heating and melting the Vaseline and the paraffin, stirring, respectively adding the conductive carbon black, the powdered rubber and the short carbon fiber, and uniformly mixing. The similar material has sensitivity, can directly acquire deformation information of a model test through macroscopic resistance testing without an extra test instrument so as to greatly facilitate the testing in an test, can be used for simulating a geotechnical similar material, has lower strength, can complete the test under smaller pressurizing load along with simple pressurizing equipment, and has the advantages of wide sources of the raw materials, easy processing without maintenance, capacity of being recycled, and great reduction of testing cost.
Description
Technical field
The present invention relates to a kind of analog material and preparation method thereof, especially a kind of sensitivity similar material that is applicable to simulation ground bullet fragility and elastic-plastic material and preparation method thereof.
Background technology
The analog simulation test is by certain how much, physical relation, replaces prototype to carry out testing research with model, and result of study is used for the test method of prototype.It is a kind of important scientific research means, be in the laboratory, to make the model similar to prototype by similarity principle, by the force parameter and the regularity of distribution thereof in the testing instrument observation model, the result that utilization is studied on model, so as to contingent mechanics phenomenon and rock mass pressure distribution rule in the deduction prototype, thus the practical problems in the production of solution rock mass engineering project.This research method has directly perceived, easy, economical, quick and advantage such as the test period is short.And can be as required, by fixing some parameter, changing other parameters and study stress rule over time in the actual engineering, these all are difficult to realize under the condition at the scene.
Analog material is the key of similar test success or not, and when carrying out layer during similar model test, is again basic task to the test of model deformation information, and test for data is the fundamental basis that carries out scientific research.
At present, the analog material that is used for similar test has a variety of, by its consolidating material difference, is divided into analog materials such as paraffin, gypsum, rosin, cement.And these analog materials substantially all are that ultimate compression strength is bigger, and all need to install special testing instrument test related variation in test.So far, also do not have analog material is made into sensitivity similar material, so when model trial, all need be provided with the test that testing tool is correlated with specially, and often can not obtain some critical datas owing to the reason of testing tool, as model internal modification etc.It is necessary developing a kind of intelligent analog material with susceptibility for this reason.
Summary of the invention
Technical problem: the purpose of this invention is to provide sensitivity similar material that a kind of starting material source is wide, the preparation method is simple, cheap and preparation method thereof.
Technical scheme: sensitivity test material of the present invention, adopting Vaseline, paraffin, graphitized carbon black, chopped carbon fiber and powdered rubber is raw material, is prepared from through mixing, its quality proportioning is as follows:
100 parts in Vaseline;
1～10 part of graphitized carbon black;
80～200 parts in paraffin;
0～50 part of chopped carbon fiber;
0～100 part of powdered rubber.
Preparation method's step of sensitivity similar material of the present invention is as follows:
(1) takes by weighing Vaseline, paraffin, graphitized carbon black, chopped carbon fiber, powdered rubber by the quality proportioning;
(2) earlier Vaseline and paraffin are put into metal vessel, put into the baking oven thawing of heating again;
(3) treat that Vaseline and paraffin all melt to behind the liquid, take out metal vessel, put it in the water bath of ultrasonic disperser;
(4) open ultrasonic wave and make solution concussion in the metal vessel, solution is carried out manual stirring, add graphitized carbon black while stirring after, ultrasonic oscillation 20～60min;
(5) metal vessel is taken out, be placed on the process furnace and heat, stir, slowly add chopped carbon fiber and powdered rubber then successively, continue to be stirred to evenly with stirrer;
(6) compound that stirs is injected mould, the normal temperature about 24h of cooling down solidifies, and promptly obtains the sensitivity test material.
It is described that to put into the baking oven temperature of melting of heating be 80～140 ℃; Described water bath water temperature is about 90 ℃; The described temperature of heating on the process furnace that is placed on is 100～140 ℃.
Beneficial effect: this sensitivity similar material has following characteristics:
(1) this analog material has susceptibility, can directly obtain the deformation information of model trial by the macroscopic resistance test, need not extra testing tool, greatly facilitates the test job in the test;
(2) its intensity is lower, just can finish test under the less pressurization load, and pressure exerting device is simple;
(3) the mechanics scope is adjustable, can distinguish imitating shell hard brittle material and elastic-plastic material, has bigger theoretical investigation to be worth;
(4) its starting material source is wide, is highly susceptible to processing, does not need maintenance, and can realize recycling, has significantly reduced experimentation cost.
The Vaseline that adopts in the material is sticking semisolid at normal temperatures, paraffin is solid at normal temperatures, and both just become liquid state by heat (temperature is higher than about 70 degree), and just can add other raw material therein and be mixed into new material this moment, remove hot conditions again, cooling forming under the room temperature.
Description of drawings:
Fig. 1 is the stress-strain and the resistance-strain curve of sensitivity similar material example one of the present invention;
Fig. 2 is the stress-strain and the resistance-strain curve of sensitivity similar material example two of the present invention;
Fig. 3 is the stress-strain and the resistance-strain curve of sensitivity similar material example three of the present invention;
Fig. 4 is the stress-strain and the resistance-strain curve of sensitivity similar material example four of the present invention.
Embodiment
Embodiment one, by the weighing of quality proportioning:
100 parts in Vaseline;
200 parts in paraffin;
40 parts of chopped carbon fibers;
5 parts of graphitized carbon blacks;
100 parts of powdered rubbers;
Chopped carbon fiber adopts the long chopped carbon fiber of 0.2mm.
To put into the stainless steel cup by 100 parts of Vaseline and 200 parts of paraffin of quality proportioning earlier, and again the stainless steel cup be put into baking oven and heat, oven temperature is adjusted to 120 degrees centigrade; Open ultrasonic disperser, regulate Heating temperature to 90 degree, begin to heat the water in its water bath; After about about 3 hours, it is liquid that Vaseline and paraffin all melt fully, after water temperature in the ultrasonic disperser water bath also is elevated to about 90 degree, the stainless steel cup is taken out, be placed on the ultrasonic disperser water bath water surface, open ultrasonic oscillation, manual stirring limit, limit slowly adds the graphitized carbon black of 5 parts of quality proportionings, after shaking about 40 minutes, the stainless steel cup is taken out, be put on the process furnace, mixture temperature is about 120 degrees centigrade in the control container, use stirrer to mix material, slowly add the long chopped carbon fiber of 40 parts of 0.2mm of quality proportioning, 100 parts of powdered rubbers mix material about 15 minutes; After compound is uniformly dispersed, be injected into mould, the room temperature cooling is after 24 hours, and form removal just obtains sensitivity similar material.
The sensitivity similar material that this quality proportioning is made carries out the uniaxial compression test, and the sample two ends adopt copper wire gauze to do electrode, are used for testing its resistance value, obtain stress-strain curve and resistance-strain curve respectively, as shown in Figure 1.
Embodiment two, by the weighing of quality proportioning:
100 parts in Vaseline;
80 parts in paraffin;
0 part of chopped carbon fiber;
2 parts of graphitized carbon blacks;
80 parts of powdered rubbers.
To put into the stainless steel cup by 100 parts of Vaseline and 80 parts of paraffin of quality proportioning earlier, and again the stainless steel cup be put into baking oven and heat, oven temperature is adjusted to 130 degrees centigrade; Open ultrasonic disperser, regulate Heating temperature, begin to heat the water in its water bath to about 90 degree; After about about 3 hours, it is liquid that Vaseline and paraffin all melt fully, after water temperature in the ultrasonic disperser water bath also is elevated to about 90 degree, the stainless steel cup is taken out, be placed on the ultrasonic disperser water bath water surface, open ultrasonic oscillation, the manual limit of stirring, limit slowly adds graphitized carbon black, shake after 20 minutes, the stainless steel cup is taken out, be put on the process furnace, mixture temperature is about 120 degrees centigrade in the control container, use stirrer to mix material, slowly add powdered rubber, mix material about 10 minutes; After compound is uniformly dispersed, be injected into mould, the room temperature cooling is after 24 hours, and form removal just obtains sensitivity similar material.
The sensitivity similar material that this quality proportioning is made carries out the uniaxial compression test, and the sample two ends adopt copper wire gauze to do electrode, are used for testing its resistance value, obtain stress-strain curve and resistance-strain curve respectively, as shown in Figure 2.
Embodiment three, by the weighing of quality proportioning:
100 parts in Vaseline;
160 parts in paraffin;
30 parts of chopped carbon fibers;
1.5 parts of graphitized carbon blacks;
20 parts of powdered rubbers;
Chopped carbon fiber adopts the long chopped carbon fiber of 0.6mm.
To put into the stainless steel cup by 100 parts of Vaseline and 160 parts of paraffin that the quality proportioning takes by weighing earlier, and again the stainless steel cup be put into baking oven and heat, oven temperature is adjusted to 120 degrees centigrade; Open ultrasonic disperser, regulate Heating temperature to 90 degree, begin to heat the water in its water bath; After about about 3 hours, it is liquid that Vaseline and paraffin all melt fully, after water temperature in the ultrasonic disperser water bath also is elevated to about 90 degree, the stainless steel cup is taken out, be placed on the ultrasonic disperser water bath water surface, open ultrasonic oscillation, the manual limit of stirring, limit slowly adds graphitized carbon black, shake after 30 minutes, the stainless steel cup is taken out, be put on the process furnace, mixture temperature is about 120 degrees centigrade in the control container, use stirrer to mix material, slowly add chopped carbon fiber, powdered rubber, mix material about 15 minutes; After compound is uniformly dispersed, be injected into mould, the room temperature cooling is after 24 hours, and form removal just obtains sensitivity similar material.
The sensitivity similar material that this quality proportioning is made carries out the uniaxial compression test, and the sample two ends adopt copper wire gauze to do electrode, are used for testing its resistance value, obtain stress-strain curve and resistance-strain curve respectively, as shown in Figure 3.
Embodiment four, by the weighing of quality proportioning:
100 parts in Vaseline;
120 parts in paraffin;
0 part of chopped carbon fiber;
10 parts of graphitized carbon blacks;
50 parts of powdered rubbers.
To put into the stainless steel cup by 100 parts of Vaseline and 120 parts of paraffin that the quality proportioning takes by weighing earlier, and again the stainless steel cup be put into baking oven and heat, oven temperature is adjusted to 120 degrees centigrade; Open ultrasonic disperser, regulate Heating temperature to 90 degree, begin to heat the water in its water bath; After about about 3 hours, it is liquid that Vaseline and paraffin all melt fully, after water temperature in the ultrasonic disperser water bath also is elevated to about 90 degree, the stainless steel cup is taken out, be placed on the ultrasonic disperser water bath water surface, open ultrasonic oscillation, the manual limit of stirring, limit slowly adds graphitized carbon black, shake after 60 minutes, the stainless steel cup is taken out, be put on the process furnace, mixture temperature is about 120 degrees centigrade in the control container, use stirrer to mix material, slowly add powdered rubber, mix material about 15 minutes; After compound is uniformly dispersed, be injected into mould, the room temperature cooling is after 24 hours, and form removal just obtains sensitivity similar material.
The sensitivity similar material that this quality proportioning is made carries out the uniaxial compression test, and the sample two ends adopt copper wire gauze to do electrode, are used for testing its resistance value, obtain stress-strain curve and resistance-strain curve respectively, as shown in Figure 4.
Claims (5)
1. sensitivity test material is characterized in that: adopting Vaseline, paraffin, graphitized carbon black, chopped carbon fiber and powdered rubber is raw material, is prepared from through mixing, and its quality proportioning is as follows:
100 parts in Vaseline;
1～10 part of graphitized carbon black;
80～200 parts in paraffin;
0～50 part of chopped carbon fiber;
0～100 part of powdered rubber.
2. the preparation method of sensitivity similar material according to claim 1 is characterized in that step is as follows:
(1) takes by weighing Vaseline, paraffin, graphitized carbon black, chopped carbon fiber, powdered rubber by the quality proportioning;
(2) earlier Vaseline and paraffin are put into metal vessel, put into the baking oven thawing of heating again;
(3) treat that Vaseline and paraffin all melt to behind the liquid, take out metal vessel, put it in the water bath of ultrasonic disperser;
(4) open ultrasonic wave and make solution concussion in the metal vessel, solution is carried out manual stirring, add graphitized carbon black while stirring after, ultrasonic oscillation 20～60min;
(5) metal vessel is taken out, be placed on the process furnace and heat, stir, slowly add chopped carbon fiber and powdered rubber then successively, continue to be stirred to evenly with stirrer;
(6) compound that stirs is injected mould, the normal temperature about 24h of cooling down solidifies, and promptly obtains the sensitivity test material.
3. the preparation method of sensitivity similar material according to claim 2 is characterized in that: described to put into the baking oven temperature of melting of heating be 80～140 ℃.
4. the preparation method of sensitivity similar material according to claim 2 is characterized in that: the water temperature in the described water bath is about 90 ℃
5. the preparation method of sensitivity similar material according to claim 2, it is characterized in that: the described temperature of heating on the process furnace that is placed on is 100～140 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102557204A CN101914292B (en) | 2010-08-13 | 2010-08-13 | Sensitivity similar material and preparation method thereof |
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| CN2010102557204A CN101914292B (en) | 2010-08-13 | 2010-08-13 | Sensitivity similar material and preparation method thereof |
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| CN101914292A true CN101914292A (en) | 2010-12-15 |
| CN101914292B CN101914292B (en) | 2012-11-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911639A (en) * | 2012-08-20 | 2013-02-06 | 中国矿业大学 | Magnetic similar material and preparation method thereof |
| CN109238804A (en) * | 2018-10-26 | 2019-01-18 | 中国矿业大学 | A kind of dilatancy layer during similar model test material and application method with conductive characteristic |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195122Y (en) * | 1994-04-30 | 1995-04-19 | 西安矿业学院 | Combined stacked body similar material simulation experiment device |
-
2010
- 2010-08-13 CN CN2010102557204A patent/CN101914292B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195122Y (en) * | 1994-04-30 | 1995-04-19 | 西安矿业学院 | Combined stacked body similar material simulation experiment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911639A (en) * | 2012-08-20 | 2013-02-06 | 中国矿业大学 | Magnetic similar material and preparation method thereof |
| CN109238804A (en) * | 2018-10-26 | 2019-01-18 | 中国矿业大学 | A kind of dilatancy layer during similar model test material and application method with conductive characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101914292B (en) | 2012-11-28 |
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