CN115466108B - Underwater optical fiber contact pin material with self-lubricating performance and preparation method thereof - Google Patents
Underwater optical fiber contact pin material with self-lubricating performance and preparation method thereof Download PDFInfo
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- CN115466108B CN115466108B CN202111533649.6A CN202111533649A CN115466108B CN 115466108 B CN115466108 B CN 115466108B CN 202111533649 A CN202111533649 A CN 202111533649A CN 115466108 B CN115466108 B CN 115466108B
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Abstract
An underwater optical fiber contact pin material with self-lubricating performance and a preparation method thereof. The invention belongs to the field of underwater optical fiber pin materials. The invention aims to solve the technical problems that the existing underwater optical fiber contact pin material is not matched with an optical fiber material, and the outer diameter of the optical fiber is easy to wear and break due to poor lubricating performance, and the optical fiber is fragile and easy to break. The invention relates to an underwater optical fiber contact pin material with self-lubricating property, which is prepared from basalt powder and Ti 3 SiC 2 And graphite powder. The method comprises the following steps: step 1: mixing materials; step 2: pressing the mixture into a prefabricated blank at room temperature; step 3: and placing the prefabricated blank into a sintering furnace, and carrying out staged heating sintering in an inert atmosphere environment or a vacuum environment to obtain the contact pin material. The invention adopts lamellar Ti 3 SiC 2 The material and the graphite material improve the toughness and the wear resistance of the contact pin material, and the thermal expansion coefficients of the composite material and the optical fiber material are mutually matched by precisely regulating and controlling the proportion relation of the material and the graphite material and assisting a special sintering treatment process.
Description
Technical Field
The invention belongs to the field of underwater optical fiber pin materials, and particularly relates to an underwater optical fiber pin material with self-lubricating performance and a preparation method thereof.
Background
The pin material is the core critical component material of the fiber optic connector. Its main functions are to fix the optical fiber precisely and to realize the optical fiber centering stably. The main requirements for the pins are, in addition to maintaining precise tolerances for the central bore and coaxiality, the inability to deform, thermally match the optical fibers over a long period of time.
In the initial stage, the optical fiber contact pin is made of metal materials such as stainless steel, but the performance difference of the metal materials and the optical fiber materials causes the problem of large loss of outgoing optical fiber transmission signals in the use process, and the underwater environment, particularly the marine environment, has obvious corrosion effect on metals, and reduces the service life of the contact pin. Because of the problem of the metal material pins, alumina, zirconia and other oxidized ceramics are adopted as the pin materials at the present stage. The application of the oxide ceramic material solves the corrosion problem of the seawater environment, but the performance difference between the oxide ceramic material such as alumina, zirconia and the like and the optical fiber material still does not fundamentally solve the problem of high loss of the optical fiber transmission signal. For example: the thermal expansion coefficient of the zirconia ceramic material is 10.8x10 -6 While the thermal expansion coefficient of the optical fiber material is 5.8X10 -6 When the external temperature changes, gaps can appear between the optical fibers and the pins, so that the optical fiber signal transmission outgoing line is extrinsic in loss. Moreover, the ceramic material has higher hardness and poorer lubricating performance, and the oxide ceramic contact pin is positioned on the outer diameter of the optical fiber which is easy to wear and match in the optical fiber assembly process.
Basalt material has a thermal expansion coefficient similar to that of an optical fiber material, and has a thermal expansion coefficient of 6.5X10 -6 Moreover, basalt materials have the characteristics of excellent seawater corrosion resistance and temperature stability. Therefore, basalt material is a candidate material excellent for underwater optical fiber pins. However, the brittleness of the basalt material is high, and when the basalt material is used as an optical fiber pin, the basalt material is easy to break, crack and the like in the continuous plugging process.
Disclosure of Invention
The invention aims to solve the technical problems that the existing underwater optical fiber contact pin material is not matched with an optical fiber material, the outer diameter of an optical fiber is easy to wear and break due to poor lubricating performance, and the brittleness is large, so that the underwater optical fiber contact pin material with self-lubricating performance and a preparation method thereof are provided.
The invention relates to an underwater optical fiber contact pin material with self-lubricating property, which is prepared from basalt powder and Ti 3 SiC 2 And graphite powder, wherein the basalt powder and Ti are prepared from 3 SiC 2 The ratio of the amounts of the substances is 100: (10-20), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (10-20).
Further defined, the Ti is 3 SiC 2 The particle size is 10-48 μm in the form of a lamellar.
Further defined, the basalt powder has a particle size of 50 μm to 100 μm.
Further defined, the particle size of the graphite powder is 5 μm to 15 μm.
Further defined, the basalt powder is mixed with Ti 3 SiC 2 The ratio of the amounts of the substances is 100: (12-18), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (12-18).
Further defined, the basalt powder is mixed with Ti 3 SiC 2 The ratio of the amounts of the substances is 100: (14-16), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (14-16).
Further defined, the basalt powder is mixed with Ti 3 SiC 2 The ratio of the amounts of the substances is 100:15, the ratio of the mass of basalt powder to that of graphite powder is 100:15.
the preparation method of the underwater optical fiber pin material with the self-lubricating property comprises the following steps:
step 1: drying basalt powder, then mixing with Ti 3 SiC 2 Mixing with graphite powder in a mixer to obtain a mixture;
step 2: pressing the mixture into a prefabricated blank at room temperature;
step 3: and (3) placing the prefabricated blank into a sintering furnace, and carrying out staged heating sintering in an inert atmosphere environment or a vacuum environment, and cooling along with the furnace after sintering to obtain the underwater optical fiber contact pin material with self-lubricating property.
Further defined, the total volume of the mixture charged into the mixer in step 1 is 1/3 of the volume of the mixer.
Further defined, the pressing pressure in step 2 is 4MPa to 5MPa.
Further defined, the specific process of the step 3 of the step-by-step temperature-rising sintering is as follows: firstly, the temperature is raised to 100 ℃ from room temperature at the heating rate of 4 ℃/min to 6 ℃/min, then the temperature is raised to 1200 ℃ from 100 ℃ at the heating rate of 14 ℃/min to 16 ℃/min, the temperature is kept for 50min to 70min at 1150 ℃ in the process, and the temperature is kept for 20min to 40min at 1200 ℃.
Compared with the prior art, the invention has the remarkable effects that:
the invention adopts lamellar Ti 3 SiC 2 The material and the graphite material improve the toughness and the wear resistance of the contact pin material, and the Ti is accurately regulated and controlled 3 SiC 2 The proportion relation with graphite makes the thermal expansion coefficient of the composite material and the optical fiber material match with each other, and the special sintering treatment process is adopted, so that the mechanical property of the contact pin material is improved by 35%, the wear resistance is improved by 25%, and the optical fiber can be effectively protected for plugging and unplugging.
Detailed Description
Example 1: the underwater optical fiber pin material with self-lubricating performance of the embodiment is prepared from basalt powder and Ti 3 SiC 2 And graphite powder, wherein the basalt powder and Ti are prepared from 3 SiC 2 The ratio of the amounts of the substances is 100:15, the ratio of the mass of basalt powder to that of graphite powder is 100:15, the Ti is 3 SiC 2 The basalt powder is a commercial product, is in a lamellar shape, has a particle size of 30 mu m, has a particle size of 80 mu m, and has a particle size of 10 mu m.
The method for preparing the underwater optical fiber pin material with the self-lubricating property of the embodiment 1 comprises the following steps:
step 1: drying basalt powder, then mixing with Ti 3 SiC 2 Mixing with graphite powder in a mixer to obtain a mixture, wherein the total volume of the mixture is 1/3 of the volume of the mixer;
step 2: pressing the mixture into a prefabricated blank at room temperature under 4 MPa;
step 3: placing the prefabricated blank into a sintering furnace, and carrying out staged heating sintering in an inert atmosphere environment, wherein the specific process of the staged heating sintering is as follows: heating from room temperature to 100 ℃ at a heating rate of 5 ℃/min, heating from 100 ℃ to 1200 ℃ at a heating rate of 15 ℃/min, preserving heat for 60min at 1150 ℃ in the process, preserving heat for 30min at 1200 ℃, and cooling along with a furnace after sintering to obtain the self-lubricating underwater optical fiber contact pin material.
Example 2: this embodiment differs from embodiment 1 in that: the basalt powder and Ti 3 SiC 2 The ratio of the amounts of the substances is 100:10, the ratio of the mass of basalt powder to that of graphite powder is 100:10. other steps and parameters were the same as in example 1.
Example 3: this embodiment differs from embodiment 1 in that: the basalt powder and Ti 3 SiC 2 The ratio of the amounts of the substances is 100:20, wherein the ratio of the mass of basalt powder to the mass of graphite powder is 100:20. other steps and parameters were the same as in example 1.
Detection test
The underwater optical fiber pin materials with self-lubricating performance of examples 1-3 were tested for bending strength according to GB T4741-1999, and the bending strength was greater than 285MPa.
Claims (6)
1. An underwater optical fiber contact pin material with self-lubricating performance is characterized by comprising basalt powder and Ti 3 SiC 2 And graphite powder, wherein the basalt powder and Ti are prepared from 3 SiC 2 The ratio of the amounts of the substances is 100: (10-20), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (10-20), the Ti 3 SiC 2 In the form of a sheet with a particle size of 10-48 μm, said sheet beingThe particle size of the basalt powder is 50-100 mu m, and the particle size of the graphite powder is 5-15 mu m;
the preparation method of the underwater optical fiber contact pin material comprises the following steps:
step 1: drying basalt powder, then mixing with Ti 3 SiC 2 Mixing with graphite powder in a mixer to obtain a mixture;
step 2: pressing the mixture into a prefabricated blank at room temperature;
step 3: placing the prefabricated blank into a sintering furnace, carrying out staged heating sintering in an inert atmosphere environment or a vacuum environment, and cooling along with the furnace after sintering to obtain an underwater optical fiber contact pin material with self-lubricating performance; the specific process of the staged temperature rising sintering comprises the following steps: firstly, the temperature is raised to 100 ℃ from room temperature at the heating rate of 4 ℃/min to 6 ℃/min, then the temperature is raised to 1200 ℃ from 100 ℃ at the heating rate of 14 ℃/min to 16 ℃/min, the temperature is kept for 50min to 70min at 1150 ℃ in the process, and the temperature is kept for 20min to 40min at 1200 ℃.
2. The self-lubricating underwater optical fiber pin material as claimed in claim 1, wherein the basalt powder and Ti 3 SiC 2 The ratio of the amounts of the substances is 100: (12-18), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (12-18).
3. The self-lubricating underwater optical fiber pin material as claimed in claim 1, wherein the basalt powder and Ti 3 SiC 2 The ratio of the amounts of the substances is 100: (14-16), wherein the ratio of the mass of basalt powder to that of graphite powder is 100: (14-16).
4. The self-lubricating underwater optical fiber pin material as claimed in claim 1, wherein the basalt powder and Ti 3 SiC 2 The ratio of the amounts of the substances is 100:15, the ratio of the mass of basalt powder to that of graphite powder is 100:15.
5. an underwater optical fiber stub material having self-lubricating properties as claimed in claim 1 wherein the total volume of the mixture charged into the mixer in step 1 is 1/3 of the volume of the mixer.
6. The self-lubricating underwater optical fiber pin material of claim 1, wherein the pressing pressure in the step 2 is 4MPa to 5MPa.
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| CN202111533649.6A CN115466108B (en) | 2021-12-15 | 2021-12-15 | Underwater optical fiber contact pin material with self-lubricating performance and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484796A (en) * | 1980-11-11 | 1984-11-27 | Hitachi, Ltd. | Optical fiber connector |
| WO1987001464A1 (en) * | 1985-08-29 | 1987-03-12 | Amp Incorporated | Ferrule member for terminating fiber optic transmission member |
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2021
- 2021-12-15 CN CN202111533649.6A patent/CN115466108B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484796A (en) * | 1980-11-11 | 1984-11-27 | Hitachi, Ltd. | Optical fiber connector |
| WO1987001464A1 (en) * | 1985-08-29 | 1987-03-12 | Amp Incorporated | Ferrule member for terminating fiber optic transmission member |
Non-Patent Citations (1)
| Title |
|---|
| 成来飞等编著.MAX相陶瓷.《复合材料原理及工艺》.西北工业大学出版社,2018,(第一版),第66-68页. * |
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