Ceramic Core Injection Mold For Optical Fiber Communication System

Ceramic Core Injection Mold For Optical Fiber Communication System

Introduction:

The optical fiber connector is an indispensable passive component in the optical fiber communication system, mainly used to realize the non-permanent precise docking between the end faces of the equipment, between the equipment and the instrument, between the equipment and the optical fiber, and between the optical fiber and the optical fiber. The optical energy output from the transmitting fiber is maximally coupled into the receiving fiber. Most fiber optic connectors consist of three parts: two mating plugs (ferrules) and a coupling sleeve. The two ferrules are fitted into the two fiber ends; the coupling sleeves are acting the role as alignment, and the sleeves are often equipped with metal or non-metal flanges to facilitate the mounting and fixing of the connectors.

For the blank of the ceramic ferrule contains a small hole of 0.1 mm and has high requirements for dimensional concentricity. The ceramic injection molding can be possible to achieve this requirement. Thus, the injection molding of ceramic powder must need the high-quality ceramic ferrule mold. The ceramic ferrule manufacturing process is divided into two parts, blank manufacturing and precision machining. Firstly, Nano zirconia powder material, with yttrium-stabilized treatment, is injection molding in the special mold after granulating. And then it is sintered to be blank at a high temperature. Secondly, the blank is processed through a series of precision grinding to achieve sub-micron precision. Thus we can obtain a ceramic ferrule with good rigidity and high precision.

To ensure the precision of the workpiece and for the volume and quality of the workpiece are relatively small, one-mold multi-cavity is an excellent way to improve production efficiency and increase economic efficiency Our company's ceramic ferrule mold adopts 1-mold 12-cavitiess, which replaces the previous 1-mold 8- cavities and 1-mold 6-cavities. With 1-mold 12-cores, the production efficiency is improved many times. According to the actual operation feedback of Zhongke workshop, the original 1-mold 8- cavities mold takes 17 hours to make 4 frame materials, and the 3-input 3-output cooling system needs 12 seconds to cool. With our 1-mold 12-cavities mold only takes 7 hours, the cooling system just need 8 seconds to cool. If using our company's 6-input 6-output cooling system only takes 5 seconds to cool. And the mold highly suitable to zirconia materials. Whether domestic zirconia or imported zirconia material, the ceramic ferrules produced by our ceramic core insert die have very good stability, high consistency and high precision.

The demands for information technology and communications technology are the driving force for the need of fiber connector ceramic ferrules. Sharp tools make good work. Under the fierce market competition of optical communication technology industry, using high-quality and high-efficiency ceramic ferrule molds are the key to improve production efficiency.

Technical parameters:

The optical fiber connector ceramic ferrule is high-quality product of optical communication technology. The ferrule core pins used in ceramic powder injection molding are all high-precision products. Such high-precision ceramic core pins have mainly imported from South Korea, Japan, etc. The expensive cost and long delivery period seriously restrict the rapid and healthy development of our optical communication industry.

The production of precision ceramic core needs the cooperation of precision ceramic core injection mold and PIN core pin. The fiber-optic ceramic ferrule process technology is very mature, and its manufacturing adopts the following advanced process technologies:

• Nano-zirconia powder injection molding and forming technology
• Micro-hole forming technology with inner diameter of 0.125 mm and length of 12-15 mm
• Precision ceramic processing technology with accuracy tolerance of 0.1μm
• Process control method for sintering grains submicron
• Low-loss optical communication components with insertion loss ≤ 0.2 dB and return loss ≥ 40 dB.

Advantages:

The production equipment of ceramic core is special and professional equipment to produce ceramic ferrules. The precision mold as the necessary tool for mass industrial production operation, fiber-optic ceramic core molds and core pins are used together. Especially the current large demand for optical communication, high-quality ceramic cores are in short supply. The accuracy requirement for ceramic core pin is very high. The basic requirement is ±0.001 ~ ±0.0005, which is the mandatory premise for its precision requirements.

The fiber optic connectors core for are produced in large quantities using ceramic injection molding techniques, and the ceramic material used is zirconia. Among various metal oxide ceramic materials, zirconia has the better high-temperature thermal stability and thermal insulation properties, suitable to produce ceramic coatings and high-temperature refractory products. Zircon-based ceramic pigments with zirconia as the main raw material are an important component of high-grade glaze. The thermal conductivity of zirconia is the lowest among common ceramic materials, and the thermal expansion coefficient is closer to that of metallic materials, thus it is an important structural ceramic material. And the special crystal structure makes it an important electronic material. The characteristics of phase transformation and toughness make zirconia become plastic ceramic materials. Its good mechanical properties and thermophysical properties make it an excellent reinforcing phase in metal matrix composites.

Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing, research and development of cemented carbide materials and tungsten steel products’ raw material, blank production, tungsten steel precision processing and sales one-stop service.

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