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Inclined-hole insertion core and preparation method thereof

A ferrule and oblique hole technology is applied in the field of oblique hole ferrule and its preparation, which can solve the problems of poor machining accuracy, prone to cracks, and difficulty in ensuring accuracy, and achieves lower machining costs, lower machining requirements, and reduced press-fitting difficulty. Effect

Inactive Publication Date: 2016-08-17
CHAOZHOU THREE CIRCLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some problems in the production of zirconia ceramic ferrules: 1. The refining and precision of zirconia ceramics require special and complicated processes
2. Zirconia ceramics are prone to deformation and it is difficult to guarantee the accuracy
[0006] On the one hand, the ferrule prepared by the prior art is easily deformed, prone to cracks, and has low precision
On the other hand, due to the needs of existing products, there must be a certain angle between the optical fiber and the central axis of the outer circle of the metal part, and there is an oblique angle between the inner hole of the front end of the existing metal tailstock and the central axis of the outer circle. When press-fitting, there is a high requirement for the angle of the tailstock fixing tool, which leads to high processing cost and poor machining accuracy of the tailstock, and it is difficult to press-fit due to the complex structure of the press-fit fixture
The processing cost of the tailstock is high and the accuracy is poor; the ferrule and the tailstock are press-fitted according to the requirements, and the press-fitting is difficult due to the complex structure of the press-fitting fixture

Method used

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  • Inclined-hole insertion core and preparation method thereof

Examples

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preparation example Construction

[0043] The preparation method of the above-mentioned oblique hole ferrule comprises the following steps:

[0044] 1) According to the above formula, weigh corresponding parts by mass of ceramic powder, binder, plasticizer and dispersant, and mix them to obtain feed;

[0045] 2) Inject the mixed feed material in step 1) into the inclined hole mold, and obtain the inclined hole biscuit after demoulding;

[0046] 3) Degrease the oblique hole blank that has been demoulded in step 2) and then sinter to obtain the oblique hole blank;

[0047] 4) Grinding and polishing the oblique hole blank fired in step 3) to obtain the oblique hole ferrule.

[0048] Preferably, the mixing temperature in step 1) is 100°C-200°C, and the mixing time is 4h-10h.

[0049] Preferably, the injection temperature in step 2) is 100°C-200°C, and the injection pressure is 30MPa-200MPa.

[0050] Preferably, the degreasing temperature in step 3) is 200°C-500°C, and the degreasing time is 4h-10h.

[0051]Pref...

Embodiment 1

[0056] Example 1 A kind of oblique hole ferrule

[0057] refer to figure 1 According to the present invention, the oblique hole ferrule 1 is provided with a ferrule inner hole 3 for the optical fiber to pass through, and there is an inclined angle between the central axis of the ferrule inner hole 3 and the central axis of the ferrule 1; the inclined angle is an acute angle; The outer diameter of the slanted hole ferrule 1 is 1.0-4.0mm; the slanted hole ferrule 1 is used to be installed in the inner hole of the tailstock, the tailstock 2 is cylindrical, and the axis of the inner hole of the tailstock is in line with the tailstock The two axes coincide; the inner hole diameter of the tailstock is 1.2-4.2 mm.

[0058] The above-mentioned oblique hole ferrule is made of the following raw materials in parts by mass: 70-80 parts of ceramic powder, 10-20 parts of binder, 1-10 parts of plasticizer, and 0.1-5 parts of dispersant;

[0059] The ceramic powder is selected from Zr...

Embodiment 2

[0065] Example 2 A kind of oblique hole ferrule

[0066] refer to figure 1 , the oblique hole ferrule 1 of the present invention is provided with a ferrule inner hole 3 for the optical fiber to pass through, and there is an inclined angle between the central axis of the ferrule inner hole 3 and the central axis of the ferrule 1; the inclined angle is an acute angle of 30° The outer diameter of the slanted hole ferrule 1 is 3 mm; the slanted hole ferrule 1 is used to be installed in the inner hole of the tailstock, the tailstock 2 is cylindrical, and the axis of the inner hole of the tailstock is in line with the tailstock 2 The axes coincide.

[0067] The above-mentioned oblique hole ferrule is made of the following raw materials in parts by mass: 75 parts of ceramic powder, 15 parts of binder, 6 parts of plasticizer, and 4 parts of dispersant;

[0068] The ceramic powder is selected as ZrO 2 、Si 3 N 4 and SiC mixture.

[0069] The binder is selected as a mixture o...

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Abstract

The invention discloses an inclined-hole insertion core and a preparation method thereof. The insertion core is internally provided with an insertion core inner hole for a fiber to pass through, and there is an inclination included angle between the central axis of the insertion core inner hole and the central axis of the insertion core; and the inclined-hole insertion core is prepared by ceramic powder, a binder, a plasticizer and a dispersant. The central axis of the insertion core inner hole and the central axis of the insertion core form the inclination included angle, pressing fit can be carried out by use of a routine tailstock, the processing cost is decreased, the precision is improved, and pressing fit difficulty between the insertion core and the tailstock is reduced. The inclined-hole insertion core is prepared by use of a specific formula so that demoulding, blank disengagement, depressions and slight cracks do not occur in base substrate manufacturing; the finished product density is greater than and equal to 6g / cm<3>; the water absorption is 0%; and the flexural intensity is higher than Vickers hardness. It is indicated that the specific formula provided by the invention is especially suitable for preparation of the inclined-hole insertion core, and such performances as the firmness, flexural strength, external force resistance, expansion resistance and the like of the inclination included angle between the central axis of the insertion core inner hole and the central axis of the insertion core are improved; and the inclined-hole insertion core is not easily deformed, cracks do not occur easily, and the precision is high.

Description

technical field [0001] The invention relates to an oblique hole ferrule and a preparation method thereof. Background technique [0002] In the field of optical fiber communication technology, optical fiber connectors can be used to transmit optical signals, and their core and basic components are ferrules, which play the role of media for connection, conversion, and data transmission. They are the most basic and important components of a series of optical communication products. Passive components. [0003] Initially, ferrules for optical fiber connectors were made by cutting the shape of metal rods (iron, stainless steel, etc.) and then processing the inner holes. It is difficult to control the accuracy of the product by using metal rods to process ferrules for optical fiber connectors, and the corrosion resistance and wear resistance of metal rods are poor, which cannot meet the market demand for mass production. Therefore, R&D personnel can develop A method of mass prod...

Claims

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Application Information

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IPC IPC(8): G02B6/38C04B35/04C04B35/10C04B35/48C04B35/563C04B35/565C04B35/581C04B35/583C04B35/584C04B35/622
CPCG02B6/3807C04B35/04C04B35/10C04B35/48C04B35/563C04B35/565C04B35/581C04B35/583C04B35/584C04B35/622
Inventor 郑镇宏刘研陈小素
Owner CHAOZHOU THREE CIRCLE GRP