CN103642149B - A kind of making of recyclable drilling liner plate of circuit board and recovery process - Google Patents
A kind of making of recyclable drilling liner plate of circuit board and recovery process Download PDFInfo
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- CN103642149B CN103642149B CN201310549616.XA CN201310549616A CN103642149B CN 103642149 B CN103642149 B CN 103642149B CN 201310549616 A CN201310549616 A CN 201310549616A CN 103642149 B CN103642149 B CN 103642149B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The present invention relates to the field of recovery technology again of wiring board processing backing plate, particularly a kind of making of recyclable drilling liner plate of circuit board and recovery process.The composite grain that the present invention adopts pure aluminium powder, auxiliary agent and the foaming concentrate of more than high molecular polymer, 100 orders to make, sheet material is made through production line of plastic sheets, sheet material makes backing plate through cutting with thermocompressor hot pressing, and backing plate can also be recycled and again be processed into backing plate.Compared with prior art; the making of a kind of recyclable drilling liner plate of circuit board of the present invention and recovery process; both the technical requirements of drilling liner plate of circuit board had been reached; achieve again the repeatedly recycling of drilling liner plate of circuit board; decrease conventional cushion strip to waste and pollution problem; greatly save production cost, protect environment again.
Description
Technical field
The present invention relates to the field of recovery technology again of wiring board processing backing plate, particularly a kind of making of recyclable drilling liner plate of circuit board and recovery process.
Background technology
Printed circuit board (Printedcircuitboard, be called for short PCB) be the substrate assembling electronic component, its major function is the connection making various electronic component form predetermining circuit, and playing relay transmission, is the critical electronic cross tie part of electronic product.And the interconnection of this electronic component just needs to hole on printed circuit board, to complete the fixing of electronic component and to be connected.
When circuit boring, because the rotating speed of drill bit is very high, poor toughness, the fragility of drill bit itself are large, and costliness very.In order to reduce the wearing and tearing of drill bit and fracture, and improve boring precision, prevent from scratching circuit card surface, avoid hole to produce the reasons such as burr, when carrying out circuit boring, above circuit card, placing backing plate, placed backing plate in the below of circuit card.
The boring backing plate of traditional circuit plate has paper phenol backing plate, resin aluminium backing plate, aluminium foil backing plate and paper phenol plate etc., and backing plate has resol plate, papery force fit plate and density board etc.
Existing Cover Gasket plate can only be single use in drilling holes on circuit board, because after drilling holes on circuit board, in backing plate and backing plate, leaves hole, if continue use to there will be string hole, and causes Drill Crack.
Existing Cover Gasket plate is except aluminium foil can directly reclaim, the recovery difficult of all the other Cover Gasket plates is very large, because be all add resol, urea-formaldehyde resin etc. as binding agent in the Cover Gasket panel material of papery or xylon, resol, urea-formaldehyde resin etc. all belong to thermosetting material and are difficult to reclaim, and the directly recycling of Cover Gasket plate itself is worth very low, the lining material etc. in case and bag can only be used as.Therefore, in decades in circuit-board drilling hole rows industry, Cover Gasket plate is because economic worth is low, and recovery value is lower, and becomes a kind of consumptive material got the brush-off.Due to can only single use and be difficult to reclaim, therefore the Cover Gasket plate of drilling holes on circuit board causes huge waste to society, also pollutes environment simultaneously.
Summary of the invention
In order to solve the problem of prior art, the invention provides a kind of making and recovery process of recyclable drilling liner plate of circuit board, both reached the technical requirements that drilling holes on circuit board needs, and also achieved the recycling of backing plate, both save production cost, additionally reduce huge social resources waste.
The technical solution adopted in the present invention is as follows:
The making of recyclable drilling liner plate of circuit board and a recovery process, comprise the manufacture craft of backing plate and the recovery process of backing plate, and wherein, the manufacture craft of described backing plate comprises the following steps:
A, first, pure aluminium powder more than 100kg polyvinyl chloride 700 (or 800) resin-oatmeal, 20kg100 order, stablizer 8kg, external lubricant 2kg, internal lubricant 2kg, foaming control agent 8kg, nucleator 10kg are rendered in high-speed mixer, start high-speed mixer until heating material is to temperature 110 DEG C, then blowing is cooled to temperature of charge 40 DEG C to cold mixing machine, material is discharged cold mixing machine and is obtained compound, completes mixing and the preplasticizing of material;
B, above-mentioned compound are sent on the hopper of granulating extruder by helical feeder, and be sent in the screw rod of granulating extruder through feeder, through the shearing of heat exchange and screw rod, compound melting is by screw rod transmission and extruding, diameter 3.5mm adhesive tape is become through granulation die, adhesive tape is cut into particle by rotary cutter, and particle send cooling to store through wind;
C, particle and foaming concentrate are thrown in mixing machine, mixing machine is low-speed mixer, and particle and foaming concentrate mixs 30 minutes in mixing machine, and whether inspection particle and foaming concentrate are uniformly dispersed; Finely dispersed particle and foaming concentrate are directly by vacuum feeder heat air delivery drying machine, and drying machine hot blast temperature controls at 70 DEG C, 2 hours time of drying;
D, the particle that have passed through warm air drying and foaming concentrate are directly transported to the hopper in plate-extruding machine by vacuum feeder, particle and foaming concentrate directly enter the screw rod of plate-extruding machine under gravity, through heat exchange and shearing, particle and foaming concentrate fusion plastification, be shaped to slab through board mould, it is sheet material that slab rolls cooling and shaping through three rollers;
E, sheet material cut the universaling packing size to wiring board backing plate through clipper sheet material, and the sheet material cut is placed on the worktable of thermocompressor, and thermocompressor operating temperature is arranged on 80 DEG C, and hot pressing time is 60 seconds;
F, backing plate together with wiring board, backing plate clamping, are sent in PCB drilling machine by fixture, and PCB drilling machine carries out the boring of wiring board according to the track of setting, and the backing plate completing boring work is removed to concentrate to be deposited in and prepares together to reclaim;
The recovery process of described backing plate comprises the following steps:
The backing plate of G, recovery is through the wide lath of clipper cropped one-tenth 200mm, and lath is put in the conveying roller of sheet material dicing machine, and under the effect of conveying roller and hobboing cutter, sheet material is cut into the recovery particle of size uniform;
H, recovery particle and foaming concentrate to be thrown in mixing machine, mix 30 minutes, finely dispersed recovery particle and foaming concentrate directly by drying in vacuum feeder heat air delivery drying machine 2 hours;
I, more dried recovery particle and foaming concentrate are delivered directly in plate-extruding machine, reclaim particle and foaming concentrate are made into backing plate again sheet material through plate-extruding machine, mould, three rollers, achieve the recycling of backing plate.
Pure aluminium powder more than 100 orders that backing plate uses.
In described step D, slab adopts Sai Luka foam method to produce, slab upper and lower surfaces instantaneous cooling, and skin density is high, and the slower density of slab core cooling is low.
The making of a kind of recyclable drilling liner plate of circuit board of the present invention and recovery process, the composition of its backing plate is high molecular polymer, pure aluminium powder more than 100 orders, the composite grain that auxiliary agent and foaming concentrate are made, described composite grain makes sheet material through production line of plastic sheets, sheet material makes backing plate through cutting with thermocompressor hot pressing, described backing plate directly can make recovery particle through cutting with pelletizing after completing drilling holes on circuit board, recovery particle and foaming concentrate mixing directly can make sheet material through production line of plastic sheets, sheet material makes backing plate through cutting with thermocompressor hot pressing again, removal process achieves the recycle of backing plate, recycle does not affect the quality of backing plate, recycle can be repeatedly.
In the composition of backing plate, high molecular polymer can be the thermoplastic polyesters such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, ABS, and the use of high molecular polymer can be the mixing of single variety or multiple high molecular polymer.
The beneficial effect that technical scheme provided by the invention is brought is:
In the present invention, removal process achieves the recycle of backing plate, and recycle does not affect the quality of backing plate, and recycle can be repeatedly.Compared with prior art; the making of a kind of recyclable drilling liner plate of circuit board of the present invention and recovery process; both the technical requirements of drilling liner plate of circuit board had been reached; achieve again the repeatedly recycling of drilling liner plate of circuit board; decrease conventional cushion strip to waste and pollution problem; greatly save production cost, protect environment again.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of making of recyclable drilling liner plate of circuit board of the present invention and the process flow sheet of recovery process.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Backing plate in the present invention, its material is the pure aluminium powder of more than polyvinyl chloride (PVC) RESINS, 100 orders and the matrix material of processing aid formation, wherein polyvinyl chloride (PVC) RESINS adopts the resin-oatmeal of the polymerization degree 700, pure aluminium powder (doing coupling processing) more than 100 orders, processing aid comprises stablizer, lubricant, foaming control agent etc.
First, pure aluminium powder more than 100kg polyvinyl chloride 700 (or 800) resin-oatmeal, 20kg100 order, stablizer 8kg, external lubricant 2kg, internal lubricant 2kg, foaming control agent 8kg, nucleator 10kg are rendered in high-speed mixer, start high-speed mixer until heating material is to temperature 110 DEG C, then blowing is cooled to temperature of charge 40 DEG C to cold mixing machine, material is discharged cold mixing machine and is obtained compound, completes mixing and the preplasticizing of material;
The compound of normal temperature is sent to by helical feeder on the hopper of granulating extruder 2, compound is sent in the screw rod of granulating extruder 2 through feeder, through the shearing of heat exchange and screw rod, compound melting is become diameter 3.5mm adhesive tape by screw rod transmission and extruding through granulation die, adhesive tape is cut into particle by rotary cutter, and particle send cooling to store through wind.
Particle and foaming concentrate are thrown in mixing machine 3, and mixing machine 3 is low-speed mixers, and particle and foaming concentrate mix 30 minutes in mixing machine 3, checks whether particle and foaming concentrate are uniformly dispersed; Finely dispersed particle and foaming concentrate are directly by vacuum feeder heat air delivery drying machine 4, and drying machine hot blast temperature controls at 70 DEG C, 2 hours time of drying.
The particle and the foaming concentrate that have passed through warm air drying are directly transported to the hopper in plate-extruding machine 5 by vacuum feeder, particle and foaming concentrate directly enter the screw rod of plate-extruding machine 5 under gravity, through heat exchange and shearing, particle and foaming concentrate fusion plastification are shaped to slab through board mould 6, and slab rolls through three rollers 7 sheet material that cooling and shaping is suitable thickness.
Sheet material cuts the universaling packing size to wiring board backing plate through clipper 8 sheet material, packing measurement general is in the market 41 " X49 " (inch), the sheet material cut is placed on the worktable of thermocompressor 9, thermocompressor operating temperature is generally arranged on 80 DEG C, hot pressing time is 60 seconds, the object of hot pressing corrects sheet material, and the sheet material corrected is Novel circuit board drilling liner plate.
Backing plate together with wiring board, backing plate clamping, is sent in PCB drilling machine 10 by fixture, and PCB drilling machine carries out the boring of wiring board according to the track of setting, and the backing plate completing boring work is removed to concentrate to be deposited in and prepares together to reclaim.
Reclaim backing plate through the wide lath of clipper 11 cropped one-tenth 200mm, lath is put in the conveying roller of sheet material dicing machine 12, and under the effect of conveying roller and hobboing cutter, sheet material is cut into the recovery particle of size uniform.
Recovery particle and foaming concentrate are thrown in mixing machine 3, mix 30 minutes, finely dispersed recovery particle and foaming concentrate directly by drying in vacuum feeder heat air delivery drying machine 42 hours.Again dried recovery particle and foaming concentrate are delivered directly in plate-extruding machine 5, reclaim particle and foaming concentrate are made into suitable thickness again sheet material through plate-extruding machine 5, mould 6, three roller 7, achieve the recycling of backing plate.
Above recycling can more than three times, even more times.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the making of recyclable drilling liner plate of circuit board and a recovery process, comprise the manufacture craft of backing plate and the recovery process of backing plate, wherein, the manufacture craft of described backing plate comprises the following steps:
A, first, pure aluminium powder more than 100kg polyvinyl chloride 700 resin-oatmeal, 20kg100 order, stablizer 8kg, external lubricant 2kg, internal lubricant 2kg, foaming control agent 8kg, nucleator 10kg are rendered in high-speed mixer, start high-speed mixer until heating material is to temperature 110 DEG C, then blowing is cooled to temperature of charge 40 DEG C to cold mixing machine, material is discharged cold mixing machine and is obtained compound, completes mixing and the preplasticizing of material;
B, above-mentioned compound are sent on the hopper of granulating extruder by helical feeder, and be sent in the screw rod of granulating extruder through feeder, through the shearing of heat exchange and screw rod, compound melting is by screw rod transmission and extruding, diameter 3.5mm adhesive tape is become through granulation die, adhesive tape is cut into particle by rotary cutter, and particle send cooling to store through wind;
C, particle and foaming concentrate are rendered in mixing machine, mixing machine is low-speed mixer, and particle and foaming concentrate mix 30 minutes in mixing machine, checks whether particle and foaming concentrate are uniformly dispersed; Finely dispersed particle and foaming concentrate are directly transported in hot air dryer by vacuum feeder, and drying machine hot blast temperature controls at 70 DEG C, 2 hours time of drying;
D, the particle that have passed through warm air drying and foaming concentrate are directly transported to the hopper in plate-extruding machine by vacuum feeder, particle and foaming concentrate directly enter the screw rod of plate-extruding machine under gravity, through heat exchange and shearing, particle and foaming concentrate fusion plastification, be shaped to slab through board mould, it is sheet material that slab rolls cooling and shaping through three rollers;
E, sheet material cut the universaling packing size to wiring board backing plate through clipper sheet material, and the sheet material cut is placed on the worktable of thermocompressor, and thermocompressor operating temperature is arranged on 80 DEG C, and hot pressing time is 60 seconds;
F, backing plate together with wiring board, backing plate clamping, are sent in PCB drilling machine by fixture, and PCB drilling machine carries out the boring of wiring board according to the track of setting, and the backing plate completing boring work is removed to concentrate to be deposited in and prepares together to reclaim;
The recovery process of described backing plate comprises the following steps:
The backing plate of G, recovery is through the wide lath of clipper cropped one-tenth 200mm, and lath is put in the conveying roller of sheet material dicing machine, and under the effect of conveying roller and hobboing cutter, sheet material is cut into the recovery particle of size uniform;
H, recovery particle and foaming concentrate are rendered in mixing machine, mix 30 minutes, finely dispersed recovery particle and foaming concentrate to be directly transported in hot air dryer drying 2 hours by vacuum feeder;
I, more dried recovery particle and foaming concentrate are delivered directly in plate-extruding machine, reclaim particle and foaming concentrate are made into backing plate again sheet material through plate-extruding machine, mould, three rollers, achieve the recycling of backing plate.
2. the making of a kind of recyclable drilling liner plate of circuit board according to claim 1 and recovery process, is characterized in that, in described step D, slab adopts Sai Luka foam method to produce, slab upper and lower surfaces instantaneous cooling, skin density is high, and the slower density of slab core cooling is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549616.XA CN103642149B (en) | 2013-11-07 | 2013-11-07 | A kind of making of recyclable drilling liner plate of circuit board and recovery process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310549616.XA CN103642149B (en) | 2013-11-07 | 2013-11-07 | A kind of making of recyclable drilling liner plate of circuit board and recovery process |
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| CN103642149A CN103642149A (en) | 2014-03-19 |
| CN103642149B true CN103642149B (en) | 2016-02-03 |
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| CN201310549616.XA Active CN103642149B (en) | 2013-11-07 | 2013-11-07 | A kind of making of recyclable drilling liner plate of circuit board and recovery process |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216255A (en) * | 2015-10-16 | 2016-01-06 | 陈元文 | A kind of thermoplastic thin-walled melt direct compression-moulding methods continuously |
| CN105690967B (en) * | 2016-01-21 | 2017-11-17 | 深圳市柳鑫实业股份有限公司 | A kind of boring discarded backing plate renovation process |
| CN108752779A (en) * | 2018-05-07 | 2018-11-06 | 江苏万山汽车配件有限公司 | A kind of manufacturing method and production system of PVC punchings plate |
| CN110572943B (en) * | 2019-09-12 | 2021-08-24 | 泰州市博泰电子有限公司 | Circuit board drilling backing plate |
| CN112624666A (en) * | 2019-10-09 | 2021-04-09 | 刘天与 | Hard stone plastic cushion plate for PCB drilling and preparation method thereof |
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| US20060267238A1 (en) * | 2005-05-31 | 2006-11-30 | Walter Wang | Polymer wood composite material and method of making same |
| US20090226713A1 (en) * | 2006-04-26 | 2009-09-10 | Festa Daniel E | Siding Panel Formed of Polymer and Wood Flour |
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| CN101294001A (en) * | 2007-04-25 | 2008-10-29 | 中山市森朗环保装饰建材有限公司 | Method for producing wood-plastic composite material |
| CN101307185A (en) * | 2007-05-16 | 2008-11-19 | 吉林紫森装饰材料有限公司 | Plant fiber polymerization wood and method for manufacturing same |
| CN102367319A (en) * | 2011-11-23 | 2012-03-07 | 濮阳市东宝科技发展有限公司 | Wood-plastic door sheet |
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