CN115466108A - Underwater optical fiber contact pin material with self-lubricating property and preparation method thereof - Google Patents
Underwater optical fiber contact pin material with self-lubricating property and preparation method thereof Download PDFInfo
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- CN115466108A CN115466108A CN202111533649.6A CN202111533649A CN115466108A CN 115466108 A CN115466108 A CN 115466108A CN 202111533649 A CN202111533649 A CN 202111533649A CN 115466108 A CN115466108 A CN 115466108A
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Abstract
An underwater optical fiber contact pin material with self-lubricating property and a preparation method thereof. The invention belongs to the field of underwater optical fiber contact pin materials. The invention aims to solve the technical problems that the existing underwater optical fiber pin is not matched with an optical fiber material, the outer diameter of an optical fiber is easy to wear due to poor lubricating property, and the optical fiber is large in brittleness and easy to break and crack. 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; and 3, 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 to obtain the 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 proportion relation of the material and the graphite material is accurately regulated and controlled to be the same as each otherThe special sintering process is used to match the thermal expansion coefficients of the composite material and the optical fiber material.
Description
Technical Field
The invention belongs to the field of underwater optical fiber contact pin materials, and particularly relates to an underwater optical fiber contact pin material with self-lubricating property and a preparation method thereof.
Background
The pin material is the key part material of the core of the optical fiber connector. Its main function is to fix the optical fiber precisely and realize the optical fiber centering stably. The main requirements for the ferrule, in addition to maintaining a central bore and precise tolerances for concentricity, are that it be non-deformable over time and that the thermal characteristics match the optical fiber.
In the initial stage, the optical fiber contact pin is made of metal materials such as stainless steel, but the loss of outgoing optical fiber transmission signals is large in the using process due to the performance difference of the metal materials and the optical fiber materials, and the underwater environment, particularly the marine environment, has obvious corrosion effect on metal, so that the service life of the contact pin is shortened. Due to the problem of metal material pins, alumina, zirconia and other ceramics are adopted as the pin material 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 materials such as alumina and zirconia and the optical fiber material still does not fundamentally solve the problem of large signal loss in optical fiber transmission. For example: the thermal expansion coefficient of the zirconia ceramic material is 10.8 multiplied by 10 -6 Of light, butThe coefficient of thermal expansion of the fiber material is 5.8 x 10 -6 When the external temperature changes, a gap can be formed between the optical fiber and the contact pin, so that the extrinsic loss of the optical fiber signal transmission output line is caused. Moreover, the ceramic material has high hardness and poor lubricating property, and the oxide ceramic contact pin is easy to wear the outer diameter of the matched optical fiber in the optical fiber assembly process.
The basalt material has a thermal expansion coefficient similar to that of the optical fiber material, and the thermal expansion coefficient is 6.5 multiplied by 10 -6 And the basalt material has the characteristics of excellent seawater corrosion resistance and temperature stability. Therefore, basalt material is an excellent candidate for an underwater optical fiber stub. However, the simple basalt material has a large brittleness, and when the basalt material is used as an optical fiber ferrule, the basalt material is easy to break, crack and the like in the continuous plugging and unplugging process.
Disclosure of Invention
The invention aims to solve the technical problems that the existing underwater optical fiber pin material is not matched with an optical fiber material, the outer diameter of an optical fiber is easy to wear due to poor lubricating performance, and the optical fiber is large in brittleness and easy to break and crack, and provides the underwater optical fiber pin material with self-lubricating performance and the preparation method thereof.
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 basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (10-20), wherein the mass ratio of the basalt powder to the graphite powder is 100: (10-20).
In a further definition, the Ti 3 SiC 2 Is in a lamellar shape, and the grain diameter is 10-48 mu m.
Further limiting, the particle size of the basalt powder is 50-100 μm.
Further, the particle size of the graphite powder is 5-15 μm.
Further limited, the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (12-18), wherein the mass ratio of the basalt powder to the graphite powder is 100: (12 to 18).
Further, the method can be used for preparing a novel liquid crystal displayDefined, the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (14-16), wherein the mass ratio of the basalt powder to the graphite powder is 100: (14 to 16).
Further limited, the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100:15, the mass ratio of the basalt powder to the graphite powder is 100:15.
the preparation method of the underwater optical fiber contact pin material with self-lubricating property is carried out according to the following steps:
step 1: drying basalt powder, and mixing with Ti 3 SiC 2 Putting the graphite powder and the graphite powder into a mixer for mixing to obtain a mixture;
step 2: pressing the mixture into a prefabricated blank at room temperature;
and step 3: and (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 the underwater optical fiber pin material with self-lubricating property.
Further limiting, the total volume of the mixture loaded into the mixer in the step 1 is 1/3 of the volume of the mixer.
Further limited, the pressure of the pressing in the step 2 is 4MPa to 5MPa.
Further, the specific process of the staged heating sintering in step 3 is as follows: the temperature is raised from room temperature to 100 ℃ at the temperature raising speed of 4 ℃/min to 6 ℃/min, then the temperature is raised from 100 ℃ to 1200 ℃ at the temperature raising speed of 14 ℃/min to 16 ℃/min, and in the process, the temperature is firstly preserved at 1150 ℃ for 50min to 70min, and then preserved at 1200 ℃ for 20min to 40min.
Compared with the prior art, the invention has the following remarkable effects:
the invention adopts laminated Ti 3 SiC 2 The material and the graphite material improve the toughness and the wear resistance of the contact pin material and accurately regulate and control Ti 3 SiC 2 The thermal expansion coefficients of the composite material and the optical fiber material are matched with each other by the proportional relation with the graphite, and a special sintering treatment process is used for assisting, so that the mechanical property of the contact pin material is improved35% and 25% of wear resistance, and can effectively protect the optical fiber from plugging and unplugging.
Detailed Description
Example 1: the underwater optical fiber contact pin material with self-lubricating property of the embodiment is made of basalt powder and Ti 3 SiC 2 And graphite powder, the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (b) is 100:15, the mass ratio of the basalt powder to the graphite powder is 100:15 of the Ti 3 SiC 2 The basalt powder is a commercially available product, is in a lamellar shape, and has a particle size of 30 micrometers, the particle size of the basalt powder is 80 micrometers, and the particle size of the graphite powder is 10 micrometers.
The method for preparing the underwater optical fiber pin material with self-lubricating property in the embodiment 1 comprises the following steps:
step 1: drying basalt powder, and mixing with Ti 3 SiC 2 The graphite powder and the graphite powder are filled into a mixer to be mixed to obtain a mixture, and the total volume of the mixture is 1/3 of the volume of the mixer;
step 2: pressing the mixture at room temperature under 4MPa to prepare a prefabricated blank;
and 3, step 3: placing the prefabricated blank into a sintering furnace, and carrying out staged temperature-rising sintering in an inert atmosphere environment, wherein the staged temperature-rising sintering specifically comprises the following steps: heating from room temperature to 100 ℃ at a heating rate of 5 ℃/min, then heating from 100 ℃ to 1200 ℃ at a heating rate of 15 ℃/min, preserving the heat at 1150 ℃ for 60min, then preserving the heat at 1200 ℃ for 30min, and cooling along with the furnace after sintering to obtain the underwater optical fiber pin material with self-lubricating property.
Example 2: this example differs from example 1 in that: the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100:10, the mass ratio of the basalt powder to the graphite powder is 100:10. the other steps and parameters were the same as in example 1.
Example 3: this example differs from example 1 in that: the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100:20, the basalt powder and the graphite powderThe ratio of the amounts of substances of (b) is 100:20. the other steps and parameters were the same as in example 1.
Detection test
The bending strength of the underwater optical fiber ferrule materials with self-lubricating property in the embodiments 1 to 3 is tested according to GB T4741-1999, and the bending strength is more than 285MPa.
Claims (10)
1. An underwater optical fiber contact pin material with self-lubricating property is characterized in that the material is prepared from basalt powder and Ti 3 SiC 2 And graphite powder, the basalt powder and Ti 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (10-20), wherein the mass ratio of the basalt powder to the graphite powder is 100: (10 to 20).
2. The underwater optical fiber ferrule material with self-lubricating property as claimed in claim 1, wherein the Ti is 3 SiC 2 Is in a lamellar shape, and the grain diameter is 10-48 mu m.
3. The underwater optical fiber ferrule material with self-lubricating property as claimed in claim 1, wherein the particle size of the basalt powder is 50 μm to 100 μm, and the particle size of the graphite powder is 5 μm to 15 μm.
4. The underwater optical fiber ferrule material with self-lubricating property as claimed in claim 1, wherein the basalt powder and Ti are 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (12-18), wherein the mass ratio of the basalt powder to the graphite powder is 100: (12 to 18).
5. The underwater optical fiber ferrule material with self-lubricating property as claimed in claim 1, wherein the basalt powder and Ti are 3 SiC 2 The ratio of the amounts of substances of (a) to (b) is 100: (14-16), wherein the mass ratio of the basalt powder to the graphite powder is 100: (14 to 16).
6. The underwater optical fiber ferrule material with self-lubricating property as claimed in claim 1, wherein the basalt powder and Ti are 3 SiC 2 The ratio of the amounts of substances of (b) is 100:15, the mass ratio of the basalt powder to the graphite powder is 100:15.
7. the method for preparing an underwater optical fiber ferrule material with self-lubricating property as claimed in any one of claims 1 to 6, wherein the preparation method comprises the following steps:
step 1: drying basalt powder, and mixing with Ti 3 SiC 2 Putting the graphite powder and the graphite powder into a mixer for mixing to obtain a mixture;
and 2, step: pressing the mixture into a prefabricated blank at room temperature;
and step 3: and (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 the underwater optical fiber contact pin material with self-lubricating property.
8. The method for preparing an underwater optical fiber ferrule material with self-lubricating property as claimed in claim 7, wherein the total volume of the mixture charged into the mixer in the step 1 is 1/3 of the volume of the mixer.
9. The method for preparing an underwater optical fiber ferrule material with self-lubricating property as claimed in claim 7, wherein the pressing pressure in step 2 is 4MPa to 5MPa.
10. The method for preparing an underwater optical fiber ferrule material with self-lubricating property as claimed in claim 7, wherein the step 3 of staged temperature-rising sintering comprises the following specific steps: the temperature is raised from room temperature to 100 ℃ at the temperature raising speed of 4 ℃/min to 6 ℃/min, then the temperature is raised from 100 ℃ to 1200 ℃ at the temperature raising speed of 14 ℃/min to 16 ℃/min, and in the process, the temperature is firstly preserved at 1150 ℃ for 50min to 70min, and then preserved at 1200 ℃ for 20min to 40min.
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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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| 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: "《复合材料原理及工艺》", 31 March 2018, 西北工业大学出版社 * |
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