CN103072320A - Reclaimed plastic composite enhanced foaming mold plate and production method - Google Patents
Reclaimed plastic composite enhanced foaming mold plate and production method Download PDFInfo
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- CN103072320A CN103072320A CN2013100016185A CN201310001618A CN103072320A CN 103072320 A CN103072320 A CN 103072320A CN 2013100016185 A CN2013100016185 A CN 2013100016185A CN 201310001618 A CN201310001618 A CN 201310001618A CN 103072320 A CN103072320 A CN 103072320A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/275—Recovery or reuse of energy or materials
- B29C48/277—Recovery or reuse of energy or materials of materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/157—Coating linked inserts, e.g. chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a reclaimed plastic composite enhanced foaming mold plate and a production method. The reclaimed plastic composite enhanced foaming mold plate is characterized by comprising a middle foaming layer; the middle foaming layer is 12 to 15 mm in thickness and 0.3 to 0.8 g/cm<3> in volume weight; an upper enhancement layer is laid on the upper end surface of the middle foaming layer; an upper surface layer is compounded on the upper enhancement layer; a lower enhancement layer is laid on the lower end surface of the middle foaming layer; a lower surface layer is compounded on the lower enhancement layer; and the upper surface layer, the upper enhancement layer, the foaming layer, the lower enhancement layer and the lower surface layer adopt an integral structure which is 14 to 60 mm in thickness and 0.6 to 6.82 g/cm<3> in volume weight. The main raw material of the reclaimed plastic composite enhanced foaming mold plate is waste plastic, so as to change waste into valuable, and reduce cost. The reclaimed plastic composite enhanced foaming mold plate can be used for manufacturing a mold board, a gangboard and a decorative board, is high in bending resistance, tensile strength and anti-impact property, light in weight, high in moisture-proof and anti-corrosion performances, and long in service life.
Description
Technical field
The present invention relates to a kind of structural lumber, particularly relate to a kind of composite strengthening foamed plastic plate for springboard for building, template, decorative sheet.
Background technology
Plastic formwork, springboard for building, decorative panel, someone studies to use new raw material and the trial-production of regeneration reclaimed materials, small lot batch manufacture, but up to the present, most high density polyethylene (HDPE) (HDPE) and polypropylene (PD) of using are made after the means such as composite strengthening or foaming, because material property and price, the factors such as technique, its poor rigidity, low-temperature impact, anti-ultraviolet property and the shortcoming such as expand with heat and contract with cold can not be promoted on a large scale, and can saw in using, nailability is poor, sooner or later between plate and the plate (1 * 2M) produces the gap about 1CM, and the noon template of sooner or later constructing will occur protruding for noon construction.Seriously restricted the development of the product of changing products, template is still in enormous quantities in the building trade uses wooden glued board, and maximum 1 ~ 2 year of life cycle, causes the considerable damage of the forest reserves, and environmental pressure is increasing.
Summary of the invention
Purpose of the present invention, provide a kind of regenerated plastics composite strengthening foaming formwork, this regenerated plastics composite strengthening foaming formwork is to be made by the waste or used plastics that reclaims, and has realized the waste product recycling, can be in order to making template, springboard and decorative boards, and cost is low, intensity is high.
The technical scheme that adopts is:
A kind of regenerated plastics composite strengthening foaming formwork comprises middle foaming layer, it is characterized in that:
Be fixed with respectively epicuticle layer and following table cortex on the upper surface of middle foaming layer and the lower surface; Between middle foaming layer and epidermal area, be equipped with respectively upper enhancement layer and lower enhancement layer that fluctuation fiber or steel wire consist of between middle foaming layer and the following table cortex.
Upper surface at above-mentioned epicuticle layer is fixed with skid resistant course, is fixed with lower skid resistant course in the lower surface of following table cortex.
Above-mentioned regenerated plastics composite strengthening foaming formwork thickness is 14-60mm, and unit weight is 0.6-0.82g/cm
3, similar plank.
Epidermal area thickness is 0.8mm-1.2mm, and performance should reach following index:
Hardness 40 ~ 70 Xiao Er D
Kang La Qiang Du＞=48 MPC
Breach Chong Ji Qiang Du＞=320 J/M
Pull apart the Chang Shuai of Shen＞=21 %
Hot Shou is Shuaied＜=1.1 %
Middle foaming layer and epidermal area physical property are basic identical, but intensity and percentage elongation are lower than outer surface layer about 10%, and unit weight is at 0.3-0.8 g/cm
3Between, thickness 14-60mm is decided according to the actual requirements.
Enhancement layer is the QRC(acrylate) net or steel wire.The QRC sealike colour is Φ 0.5mm, and the steel wire diameter of steel wire is Φ 1.5mm, and biaxial stress is about 4%.
Above-mentioned skid resistant course thickness 2-3mm is used for the springboard surface anti-skidding, is that hot-extrudable being compounded on the epidermal area consists of after adding 40-80 part 20-30 order quartz sand by chlorinated polyethylene elastomer.
Above-mentioned epidermal area is to become the PC/ABS/PET composite of unit weight 0.8-3 mm by reclaiming waste or used plastics mixed grafting modification under the effect of phase solvent, has changed the present polyolefin that uses and has been the present situation of major ingredient.
Above-mentioned foaming layer is to make the PC/ABS/PET composite by reclaiming waste or used plastics mixed grafting modification under the effect of phase solvent, and uses foaming method (adding blowing agent) formation unit weight to be 0.3-0.8 g/cm
3Middle foaming layer.
Described recovery waste or used plastics, major ingredient is styrene, butadiene, acrylonitrile (ABS), waste and old television cabin, computer, telephone casing, toy for children, small household appliances shell, mobile phone shell reworked material are major ingredient, with Merlon (PC) scuttlebutt, sunlight board, part small household appliances shell and poly terephthalic acid, glycol ester (PET), beverage bottle etc.
Described phase solvent employing plastics elastic body haloflex (CDE) or styrene, butadiene elastomer (SBS) are catalyst and the intoxicated grafting of suitable butadiene acid with peroxide (DCD), improved the consolute of ABS, PC, PET, solve the poor disadvantage of impact resistance of finished product, significantly improved the physical property of material.
The invention has the advantages that:
1, uses waste or used plastics, turn waste into wealth, and cost is low.
2, body of the present invention is light such as plank, namely reduce cost and met again mechanical property, can claim high-strength light, can follow closely can dig, sunshine is not curved, (15 ~ 20mm is thick can to make building template, 1.2 * 2.4M), can do springboard (thick, the wide 300mm of 45 ~ 60mm, long 4 ~ 6M, steel wire reinforcement, can make decorative panel 1.2 * 2.4M, top finishing).
3, the enhancing net of the present invention's use process biaxial tension (in regime of elastic deformation) in recombination process, the plastic cement part will be shunk after the cooling rapidly, but keep prestressed stretch value greater than the value of plastic shrink amount, strengthen net in the goods and be in all the time prestressing force tensioning state, solved the humidification that conventional reinforce can not play.
4, graft modification intermingling material has replenished the shortcoming of using some performance deficiency of homogenous material, has solved again the cracking after certain life cycle of regenerating waste used plastics, the aging hydraulic performance decline problem of bringing simultaneously, has opened up the new way of regenerated plastics recyclings.
5, use combined prestressing force reinforced foam plastic plate to increase substantially counter-bending, tension, the shock resistance of goods, UV resistant and the gap difficult problem of expanding with heat and contract with cold, and reduced materials amount and product cost, for spread uses the condition of having made.
6, cover with paint, lacquer, colour wash, etc. on the present invention surface, can be used as each field of ornament furnishings after dosing fire retardant.
Three-waste free discharge in the process of producing product of the present invention, product is moistureproof, anticorrosion, body is light, high-strength, long service life.
A kind of regenerated plastics composite strengthening foaming formwork and production method comprise following processing step:
1, preparation phase solvent
(1) the equipment and process condition of using:
Equipment is Φ 75 parallel double-screw extruders, and process conditions are that 1-8 district temperature is extruded under 96,105,112,116,120,138,167,172 Celsius temperatures respectively.
(2) major ingredient is CPE135A, ABS or SBS100 part, adds MAN3-5 part and DCP0.05-0.3 part again.Must be at the DCP(cumyl peroxide) it is blended in the material uniformly before decomposing, then reach reaction temperature, this moment along butadiene acid intoxicated (MAH) under the free oxygen effect with the high molecular polymer reactive grafting.
Material is extruded through Φ 75 parallel screw extruders, and again pelletizing after water-cooled is for subsequent use.
2, the raw material of preparation middle foaming layer and epidermal area:
Fetch PC, ABS, the PET material of receipts, through pulverizing selection by winnowing, remove metal impurities, press the charge ratio of PCE:ABS:PET=10-30:55-70:5-10, dose again 5-7 part phase solvent, through the hot-extrudable graft modification of parallel double-screw extruder, and granulation is for subsequent use, and extrusion temperature is respectively 126,131,145,168,196,212,236,251 ℃.
3, preparation middle foaming layer:
(1) get the raw material that step 2 is prepared into, adding blowing agent 0.2-1.5 part (pure AC meter) can require to adjust according to unit weight.Mix, want vacuum drying if the material resting period surpasses 10 hours, prevent material suction (condition is more than 80 ℃, vacuum 0.4 atmospheric pressure).
To be AC blowing agent and liquid wax be mixed with by the weight ratio of 1:1 blowing agent, becomes paste through twice grinding of grinder (grinding gap 0.1mm).
(2) with extrusion board equipment SJ-150 extruder, extruding unit weight is 0.3-0.8 g/cm
3Middle foaming layer, place behind the cooling forming more than 36 hours, make dimensionally stable.
SJ-150 extruder parameter is:
Draw ratio 33:1, compression ratio 2.8:1, head width 1350mm, thickness levelling scope 8 ~ 25mm, extruder head mass expanded 30% left and right sides shaping roller temperature is controlled at 75 ± 5 ℃, compression ratio about 20%, plank requires straight and even, horizontal positioned.
4, enhancement layer on compound on the upper surface of middle foaming layer and the lower surface:
(1) foaming layer enters from top to bottom continuously from the production line upper end, and is with the quartz electrothermal tube heater that both side surface is softening at arrival head position, reaches the plasticizing layer about 1mm, and temperature is about 200 ℃.
(2) strengthen net (steel wire or fluctuation fiber) longitudinal stretching and form tension force by hauling machine and retardance roller, laterally stretch 3～4% by the continuous puller system of crawler type, be pressed into the foaming layer surface through roll-in.
5, compound epicuticle layer on the enhancement layer that step 4 prepares:
(1) the mixed grafting material that step 2 is made is supplied with by 2 relative SJ-65 extruders and two dull and stereotyped heads.That material will plastify is even, straight and even, after the depanning moment by the adjustable pressure roller pressing of both sides temperature, temperature is at 75 ± 5 ℃, cut edge behind the air-cooled surface, be cut into sheet material by the requirement of stencil design chi, and be compounded on the enhancement layer that step 4 makes, with electrothermal tube Rong is melted on the surface in compound moment, light pressure is in aggregates with five layers of bonding, namely gets regenerated plastics composite strengthening foaming formwork.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present invention.
Fig. 2 is the second example structure schematic diagram of the present invention.
Fig. 3 is regenerated plastics composite strengthening foaming formwork production method schematic diagram of the present invention.
The specific embodiment
Embodiment one
A kind of regenerated plastics composite strengthening foaming formwork comprises that thickness is 12-15mm, and capacity is 0.3-0.8g/cm
3 Middle foaming layer 3, be equipped with enhancement layer 2 in the upper surface of middle foaming layer 3, be compounded with epicuticle layer 1 at upper enhancement layer 2; Be equipped with lower enhancement layer 4 in the lower surface of middle foaming layer 3, be compounded with following table cortex 5 at lower enhancement layer 4; Epicuticle layer 1, upper enhancement layer 2, foaming layer 3, lower enhancement layer 4 and following table cortex 5 are an overall structure, and thickness is 14-60mm, and unit weight is 0.6-6.82 g/cm
3
Embodiment two
Embodiment two described a kind of regenerated plastics composite strengthening foaming formworks, structurally basic identical with embodiment one, its difference is: be compounded with skid resistant course 6 on the upper surface of epicuticle layer 1, be compounded with lower skid resistant course 7 on the lower surface of following table cortex 5.
Epidermal area thickness among the embodiment one and two is 0.8-1.2 mm, and unit weight is 1-1.2 g/cm
3Enhancement layer is steel wire or glass fiber mesh; Skid resistant course thickness is 2-3 mm, adds 40-80 part 20-30 order quartz sand mixing by chlorinated polyethylene elastomer, consists of on the hot-extrudable composite table cortex.
Embodiment three
A kind of regenerated plastics composite strengthening foaming formwork and production method comprise the steps:
1, fetch waste or used plastics PC, ABS or SBS100 part of receipts, add MAN3-5 part and DCP0.05-0.3 part, extrude through Φ 75 parallel double-screw extruders, the graft modification raw material of PC, ABS or SBS is made in pelletizing after water-cooled, deposits respectively for subsequent use;
2, the raw material of preparation middle foaming layer and epidermal area:
Get PC, ABS, the SBS that step 1 is prepared into by the charge ratio of PC:ABS:PET=10-30:55-70:5-10, dose 5-7 part phase solvent again, through the hot-extrudable graft modification of parallel double-screw extruder, and granulation is for subsequent use; Extrusion temperature is respectively 126,131,145,168,196,212,236,251 ℃;
3, preparation middle foaming layer:
Get the raw material that step 2 is prepared into, add blowing agent 0.2-1.5 part, mix, use the SJ-150 extruder, extruding unit weight is the 0.3-0.8mm middle foaming layer, places 〉=36 hours behind the cooling forming, makes middle foaming layer 8; Blowing agent is mixed with by AC blowing agent and the liquid wax weight ratio by 1:1;
4, in upper surface and the lower surface of middle foaming layer enhancement Layer is set:
Middle foaming layer 8 is vertically sent into composite machine head 12 on production line, through 9 heating of quartz electric heating pipe heater, heating-up temperature is 200 ℃, make the middle foaming layer both side surface softening, reach the plasticizing layer about 1mm, the rubbing device 10 that is comprised of hauling machine and retardance roller again produces longitudinal traction steel wire or glass fibre silk screen is led into head 12 with hauling machine 18 power, two transversal stretching devices, 14 taut wire net or glass fiber mesh are used respectively in steel wire or glass fibre silk screen both sides, make it produce cross force, stretching 3-4%, and by sensor 11 demonstration stress intensities;
Two extruders SJ-65 and two dull and stereotyped head 13 feed are used respectively again in head 12 both sides, at 75 ± 5 ℃ of lower extexine fused coatings that produce, move pressure roller 15 downwards, make it bonding, rapidly by nozzle 16 quenchings, strengthen net this moment and keep vertical, horizontal stress, be cut into to accumulator tank 17 and hauling machine 18 and through cutting machine 19 and set the size scale.
Can make template or decorative boards, when making springboard, skid resistant course on compound again on the epidermal area, skid resistant course thickness is 2-3mm, is to add hot-extrudable being compounded on epicuticle layer 1 and the following table cortex 4 behind 40-80 part 20-30 order quartz sand by chlorinated polyethylene elastomer.
Claims (6)
1. regenerated plastics composite strengthening foaming formwork, it is characterized in that: comprise that thickness is 12-15mm, capacity is 0.3-0.8g/cm
3Middle foaming layer (3), be equipped with enhancement layer (2) on the upper surface of middle foaming layer (3), be compounded with epicuticle layer (1) at upper enhancement layer (2); Be equipped with lower enhancement layer (4) on the lower surface of middle foaming layer (3), be compounded with following table cortex (5) at lower enhancement layer (4); Epicuticle layer (1), upper enhancement layer (2), foaming layer (3), lower enhancement layer (4) and following table cortex (5) are an overall structure, and thickness is 14-60mm, and unit weight is 0.6-6.82 g/cm
3
2. a kind of regenerated plastics composite strengthening foaming formwork according to claim 1 is characterized in that: be compounded with skid resistant course (6) on the upper surface of epicuticle layer (1), be compounded with lower skid resistant course (7) on the lower surface of following table cortex (5).
3. a kind of regenerated plastics composite strengthening foaming formwork according to claim 1, it is characterized in that: epidermal area thickness is 0.8-1.2 mm, unit weight is 1-1.2 g/cm
3Enhancement layer is steel wire or glass fiber mesh.
4. a kind of regenerated plastics composite strengthening foaming formwork according to claim 2, it is characterized in that: skid resistant course thickness is 2-3 mm, adds 40-80 part 20-30 order quartz sand mixing by chlorinated polyethylene elastomer, consists of on the hot-extrudable composite table cortex.
5. a kind of regenerated plastics composite strengthening foaming formwork according to claim 1 and production method is characterized in that: comprise the steps:
(1) fetch waste or used plastics PC, ABS or SBS100 part of receipts, add MAN3-5 part and DCP0.05-0.3 part, extrude through Φ 75 parallel double-screw extruders, the graft modification raw material of PC, ABS or SBS is made in pelletizing after water-cooled, deposits respectively for subsequent use;
(2) raw material of preparation middle foaming layer and epidermal area:
Get PC, ABS, the SBS that step 1 is prepared into by the charge ratio of PC:ABS:PET=10-30:55-70:5-10, dose 5-7 part phase solvent again, through the hot-extrudable graft modification of parallel double-screw extruder, and granulation is for subsequent use; Extrusion temperature is respectively 126,131,145,168,196,212,236,251 ℃;
(3) preparation middle foaming layer:
Get the raw material that step 2 is prepared into, add blowing agent 0.2-1.5 part, mix, use the SJ-150 extruder, extruding unit weight is the 0.3-0.8mm middle foaming layer, places 〉=36 hours behind the cooling forming, makes middle foaming layer (8); Blowing agent is mixed with by AC blowing agent and the liquid wax weight ratio by 1:1;
(4) in upper surface and the lower surface of middle foaming layer enhancement Layer is set:
Middle foaming layer (8) is vertically sent into composite machine head (12) on production line, through quartz electric heating pipe heater (9) heating, heating-up temperature is 200 ℃, make the middle foaming layer both side surface softening, reach the plasticizing layer about 1mm, the rubbing device (10) that is comprised of hauling machine and retardance roller again produces longitudinal traction steel wire or glass fibre silk screen is led into head (12) with hauling machine (18) power, two transversal stretching devices (14) taut wire net or glass fiber mesh are used respectively in steel wire or glass fibre silk screen both sides, make it produce cross force, stretching 3-4%, and by sensor (11) demonstration stress intensity;
Two extruders SJ-65 and two dull and stereotyped heads (13) feed are used respectively again in head (12) both sides, at 75 ± 5 ℃ of lower extexine fused coatings that produce, move pressure roller (15) downwards, make it bonding, rapidly by nozzle (16) quenching, strengthen net this moment and keep vertical, horizontal stress, be cut into setting size scale to accumulator tank (17) and hauling machine (18) and through cutting machine (19).
6. a kind of regenerated plastics composite strengthening foaming formwork according to claim 4 and production method, it is characterized in that: skid resistant course on compound again on the epidermal area, skid resistant course thickness is 2-3mm, is by hot-extrudable being compounded on epicuticle layer (1) and the following table cortex (4) behind chlorinated polyethylene elastomer adding 40-80 part 20-30 order quartz sand.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310230A (en) * | 2017-04-27 | 2017-11-03 | 柳州市够旺贸易有限公司 | Impact resistance plastics product |
| CN110757906A (en) * | 2019-11-15 | 2020-02-07 | 太仓优上展示器具有限公司 | Prestressed high-strength plywood and manufacturing method thereof |
| CN115674624A (en) * | 2023-01-04 | 2023-02-03 | 长沙友宝电气装备有限公司 | Extrusion molding process and equipment for wire and cable insulating sheath |
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