CN103394696A - EPON (Ethernet passive optical network) device structure - Google Patents

Abstract

An EPON (Ethernet passive optical network) device structure is made by the steps of 1, preparing materials by weight, 2, performing injection molding, 3, extracting, and 4, sintering. The EPON device structure has the advantages that no actual cutting exists so that materials are saved; only three workers are required to perform molding once, and steps are few; after work pieces are taken manually, 4200 two-hole molds can be produced per shift while 8000 four-hole molds can be produced per shift; after the work pieces are taken through manipulators, 5000 two-hole molds can be produced per shift while 10000 four-hole molds can be produced per shift; production efficiency is greatly improved; burrs are soft before sintering and are easy to remove; accordingly, the problem that the burrs are difficult to remove is solved.

Description

A kind of EPON optical-fiber network device architecture spare

Technical field

The present invention relates to powder metallurgical technology, specifically a kind of manufacture craft that adopts PM technique to produce EPON optical-fiber network device architecture spare.

Background technology

A product E PON optical-fiber network device architecture spare that the optic communication industry adopts, as Fig. 1, material is stainless steel, the processing mode that before adopts is machined, during with the Vehicle Processing mode, 10 procedures is arranged approximately, uses artificial 10, approximately 1000 of overall output per manshifts.The material that adopts due to Vehicle Processing is real rod, and the weight before processing is 3 times of finished weight after processing, and waste of material is serious; The batch production machining accuracy is unstable, and the burr that Vehicle Processing produces is the difficult problem of the whole industry of puzzlement, time and effort consuming; Operation is many, and precision is high, and the production process check is more difficult, and operating personnel's technical ability is had relatively high expectations, and can't effectively guarantee product quality, and scrappage is higher, is not suitable for producing in enormous quantities, can't meet the need of market.

Summary of the invention

For above problem, the object of the present invention is to provide a kind of manufacture craft of EPON optical-fiber network device architecture spare, be existing machining accuracy instability problem while solving the machined production in enormous quantities with powder metallurgy (MIM) technique, to raise the efficiency, reduce costs.

Technical scheme of the present invention is achieved in the following ways: a kind of EPON optical-fiber network device architecture spare, in weight portion, comprises the following steps: 1) batching, 2) injection moulding, 3) extraction, 4) sintering; It is characterized in that:

1), batching: get: 85 parts of powder of stainless steel; 7 parts of waxes, 2.8 parts of polypropylene, 7.3 parts of low-pressure polyethylenes, 4.5 parts of thermoplastic elastomer (TPE)s; First powder of stainless steel and wax are added to high mixer, 600-650rpm stirring at low speed, heat to 60-65 ℃ and add again polypropylene, low-pressure polyethylene and thermoplastic elastomer (TPE), mix and continue agitating heating, make temperature be controlled at 170-200 ℃, time is controlled at 20-30 minute, after discharging by the composite material stripping and slicing, cooling, broken, pack, store for future use;

2), injection moulding: above-mentioned composite material is formed to blank by injection machine by mold injects, and its technical conditions are: mold temperature is controlled at 45 ℃, injection temperature: 185 °, a district, 176 °, 2nd district, 170 °, 3rd district, 160 °, 4th district; Injection pressure 75MPa, injection speed: 66 g/s, inject time: 2s; Cool time: 1s before storage, 8 ± 3s after storage;

3), extraction: inject blank, to put into purity be 99.9% trichloroethylene solvent, and addition is as the criterion to cover blank 10-20mm, at the temperature of 50-60 ℃, is incubated 5-6 hour;

4), sintering: the injection blank that has extracted is put into to the vacuum sintering furnace sintering:

(1) the injection blank is placed on alumina ceramic plate, leaves each other certain gap, avoids being pasted together in sintering process; Avoid directly with graphite boxes or graphite cake, contacting;

(2) in sintering process, pass into inert gas shielding, when 1-800 ℃ of low-temperature sintering, pass into nitrogen, flow-control, at 5-30pa, passes into argon gas when 1000-1330 ℃ of high temperature, and flow-control is at 10-30pa;

(3) 1330 ℃ of insulations of sintering temperature arrival are 3 hours, and insulation naturally cools to below 1000 ℃ after finishing, and applying argon gas starts blower fan, and temperature is down to below 80 ℃ and is come out of the stove, and are optic communication EPON optical-fiber network device.

The present invention, simplified technique, the high conformity of product.This kind manufacturing approach craft cost is low, and utilization rate of raw materials Gao Keda 99% is with soil; Power consumption is few, equipment investment 200,000, and personnel 1 people, mould two chamber daily outputs can reach more than 3000.

The accompanying drawing explanation

Fig. 1 is product structure schematic diagram of the present invention.

The specific embodiment

By Fig. 1, being known, is the product optic communication three-way connection of the present embodiment.Its manufacture craft is:

1, batching: get: 85 parts of powder of stainless steel; 7 parts of waxes, 2.8 parts of polypropylene, 7.3 parts of low-pressure polyethylenes, 4.5 parts of thermoplastic elastomer (TPE)s; First powder of stainless steel and wax are added to high mixer, 600-650rpm stirring at low speed, heat to 60-65 ℃ and add again polypropylene, low-pressure polyethylene and thermoplastic elastomer (TPE), mix and continue agitating heating, make temperature be controlled at 170-200 ℃, time is controlled at 20-30 minute, after discharging by the composite material stripping and slicing, cooling, broken, pack, store for future use;

2, injection moulding: above-mentioned composite material is formed to blank by injection machine by mold injects, and its technical conditions are: mold temperature is controlled at 45 ℃, injection temperature: 185 °, a district, 176 °, 2nd district, 170 °, 3rd district, 160 °, 4th district; Injection pressure 75MPa, injection speed: 66 g/s, inject time: 2s; Cool time: 1s before storage, 8 ± 3s after storage;

3, extraction: will inject the solvent that blank is put into trichloro-ethylene (purity 99.9%), addition is as the criterion to cover product 10-20mm, insulation 5-6 hour at the temperature of 50-60 °;

4, sintering: the injection blank that has extracted is put into to the vacuum sintering furnace sintering: the injection blank is placed on alumina ceramic plate, leaves certain gap, makes to be pasted together in sintering process; The injection blank is avoided directly with graphite boxes or graphite cake, contacting in sintering process; Sintering process passes into inert gas shielding, during low temperature (1-800 ℃), passes into nitrogen, and flow-control, at 5-30pa, is used argon gas during high temperature (1000-1330 ℃), and air inflow is controlled at 10-30pa; Sintering temperature was 1330 ℃ of insulations of high temperature 3 hours, and insulation naturally cools to below 1000 ℃ after finishing, and applying argon gas starts blower fan, and temperature is down to below 80 ℃ and is come out of the stove, and was optic communication EPON optical-fiber network device.

Claims (1)

1. an EPON optical-fiber network device architecture spare, in weight portion, comprise the following steps: 1) batching, 2) injection moulding, 3) extraction, 4) sintering; It is characterized in that:

1), batching: get: 85 parts of powder of stainless steel; 7 parts of waxes, 2.8 parts of polypropylene, 7.3 parts of low-pressure polyethylenes, 4.5 parts of thermoplastic elastomer (TPE)s; First powder of stainless steel and wax are added to high mixer, 600-650rpm stirring at low speed, heat to 60-65 ℃ and add again polypropylene, low-pressure polyethylene and thermoplastic elastomer (TPE), mix and continue agitating heating, make temperature be controlled at 170-200 ℃, time is controlled at 20-30 minute, after discharging by the composite material stripping and slicing, cooling, broken, pack, store for future use;

2), injection moulding: above-mentioned composite material is formed to blank by injection machine by mold injects, and its technical conditions are: mold temperature is controlled at 45 ℃, injection temperature: 185 °, a district, 176 °, 2nd district, 170 °, 3rd district, 160 °, 4th district; Injection pressure 75MPa, injection speed: 66 g/s, inject time: 2s; Cool time: 1s before storage, 8 ± 3s after storage;

3), extraction: inject blank, to put into purity be 99.9% trichloroethylene solvent, and addition is as the criterion to cover blank 10-20mm, at the temperature of 50-60 ℃, is incubated 5-6 hour;

4), sintering: the injection blank that has extracted is put into to the vacuum sintering furnace sintering:

(1) the injection blank is placed on alumina ceramic plate, leaves each other certain gap, avoids being pasted together in sintering process; Avoid directly with graphite boxes or graphite cake, contacting;

(2) in sintering process, pass into inert gas shielding, when 1-800 ℃ of low-temperature sintering, pass into nitrogen, flow-control, at 5-30pa, passes into argon gas when 1000-1330 ℃ of high temperature, and flow-control is at 10-30pa;

(3) 1330 ℃ of insulations of sintering temperature arrival are 3 hours, and insulation naturally cools to below 1000 ℃ after finishing, and applying argon gas starts blower fan, and temperature is down to below 80 ℃ and is come out of the stove, and are optic communication EPON optical-fiber network device.

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