CN105318116A - Plastic covered belt reinforced hollow-wall wound pipe and manufacturing method thereof - Google Patents
Plastic covered belt reinforced hollow-wall wound pipe and manufacturing method thereof Download PDFInfo
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- CN105318116A CN105318116A CN201510706558.6A CN201510706558A CN105318116A CN 105318116 A CN105318116 A CN 105318116A CN 201510706558 A CN201510706558 A CN 201510706558A CN 105318116 A CN105318116 A CN 105318116A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/20—Double-walled hoses, i.e. two concentric hoses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic covered belt reinforced hollow-wall wound pipe and a manufacturing method thereof. The plastic covered belt reinforced hollow-wall wound pipe comprises a square pipe, molten glue and a plastic covered belt. The plastic covered belt is longitudinal placed on one side face or two sides of the square pipe to form the plastic covered belt reinforced square pipe. The plastic covered belt reinforced square pipe is arranged on a roller mold to be spirally wound, the molten glue in a molten state is extruded to bond gaps, and therefore the plastic covered belt reinforced hollow-wall wound pipe is formed. The manufacturing method of the plastic covered belt reinforced hollow-wall wound pipe mainly comprises the steps of extruding shaping of the square pipe, attaching of the plastic covered reinforcement belt and winding forming. The plastic covered belt reinforced hollow-wall wound pipe is simple in structure, low in weight per meter and simple in production process, and has the characteristics of saving energy and being environmentally friendly.
Description
Technical field
The present invention relates to a kind of tubing, especially one is covered and is moulded band enhancing hollow spiral tube and manufacture method thereof.
Background technique
Hollow spiral tube be a kind of with high density polyethylene (HDPE) (HDPE) for raw material, adopt the structure-wall pipe material that hot winding shaping process is made, a kind of novel acidproof, anticorrosion, resistance to compression of this tubing, nontoxic environmental protection tubing, belonging to environment-friendly and energy-efficient new high-tech product, is the optimal update products such as cement pipe, cast iron tube, glass tube, PVC-U bellows.HDPE is high molecular polymer, makes hollow spiral tube material have good pliability and overall critical external compressive resistance ability, have use under overweight load road surface time, current safety can be ensured.Due to the pliability of tubing, when there is the geological activity such as earthquake, Earth cave, can pipeline damage loss be reduced to minimum, improve the ability of public facilities quake evaluation.Pipeline adopts winding process shaping, under the prerequisite of saving material, improves the ring stiffness of tubing.High density polyethylene (HDPE) has the ability that extremely strong corrosion-resistant and chemically resistant material corrodes, need not any preservative treatment when carrying corrupt liquid or laying in the extremely strong soil of corrosivity, and performance is better than other tubing greatly.Due to the ageing-resistant performance of its excellence, use as buried pipeline, the working life of 50 years can be guaranteed.High density polyethylene (HDPE) winding structure wall pipe does not add any auxiliary agent in course of working, and 100% uses high density polyethylene (HDPE) without any toxicity, non-scaling, not propagate microorganisms.Product in process of production cooling water circulation uses, and environmentally safe produce are raw, and the waste and old pipeline with the trade mark can 100% recycling.Hollow spiral tube material inwall roughness N is about 0.010, therefore carry fluid time specific frictional resistance little, under equal service condition carrying capacity comparatively cement pipe can increase substantially.Therefore the hollow spiral tube that available internal diameter is less substitutes the larger cement pipe of internal diameter, reduces engineering cost.Inner tube wall roughness is low, carrying capacity is large, in the application, use the reliability of hollow spiral tube engineering all will improve compared with traditional piping material under equal conditions, comprehensive benefit is obvious, the particularly complicated and heavy section of narrow, building dense, underground utility and when pH value soil is laid on construction ground, has more superiority.
Because hollow wound pipe has many premium properties, this tubing is applicable to the municipal drainage of conveying coolant-temperature gage below 45 DEG C, building outdoor drainage, the defeated draining in buried farmland, discharge of industrial wastes, road drainage, sewage treatment works, the draining of sports ground Plaza Project and electrical telecommunication engineering etc.In recent years, along with the wilderness demand to hollow wound pipe, and be some technological deficiencies before overcoming, many improvement for these technological deficiencies are there is, as disclosed a kind of HDPE at the Chinese patent of application number 200610021292.2, PVC plastic plastic composite winding pipe, comprise rectangle hollow band and HDPE plastic obturator formation, the tube wall of described rectangle hollow band is the PVC plastic bed of material from inside to outside respectively, composite tack coat and HDPE plastic layer, have employed multilayer labyrinth, perhaps there is good performance, but production and processing technology difficulty must strengthen, and multilayer labyrinth is unfavorable for ensureing the quality of production.And for example application number be 201210192872.3 Chinese patent disclose a kind of fiberglass reinforced HDPE binary wall twisting and pipe, the hollow square tube extruded after being mixed with continuous glass-fiber by HDPE raw material is wound, mainly extrude the improvement of raw material, but glass fibre mixes with plastics, uniformity is difficult to ensure, and when extruding, tube wall smoothness must be affected.And for example application number is that the Chinese patent of 201310001048.X discloses a kind of fiberglass reinforced hollow wall polyethylene wound pipe, is wound, but is synchronously wound with at least one PP/PE compound coating roving glass fiber bundle when hot melt adhesive is welded by hollow square tube; Reinforcing glass fiber is arranged in hot melt adhesive, is difficult to ensure that it has enhancing effect, the ring stiffness of hollow square tube can not be strengthened.
Summary of the invention
The object of the invention is, overcome the deficiency of art methods, provide that a kind of ring stiffness is high, structure is simple, meter Chong Geng is light, and production technology is simple, the covering of economical environment-protective is moulded band and is strengthened hollow spiral tube, and manufactures this covering and mould the method that band strengthens hollow spiral tube.
For achieving the above object, following technological scheme is proposed:
One is covered and is moulded band enhancing hollow spiral tube, comprises square tube, melts glue, covers and mould band; Cover and mould band and be longitudinally placed in one of them side of square tube or both sides and formed to cover and mould band and strengthen square tube, described in cover and mould band and strengthen square tube and be arranged on spiral winding on drum die, and melt glue bond gap by extruding molten, thus formed to cover and mould band and strengthen hollow spiral tube.This covers moulds the both sides that band is arranged on hollow square tube, strengthen the radial rigidity of hollow square tube, obviously can be good at strengthening the ring stiffness of entwining tube, and cover and mould band and be set to unpack format, can be good at ensureing the stability of structure, and many groups can be arranged as required cover and mould band.
Described covering is moulded band and is comprised plastic straps and reinforced core, described reinforced core is arranged among plastic straps, reinforced core is metal, plastics, fiber, cloth etc. that be banded or wire, as metal tape, wire, plastic optical fibre, plastic tape, glass fibre, burlap band.
Described covering is moulded band and is covered for fiber reinforcement and mould band, and comprise plastic straps and some long fibres, long fibre is arranged among plastic straps; Described long fibre can be glass fibre, polyester fibre etc.
Described covering is moulded band and is moulded band for Reinforced by Metal covers, and wherein draw together plastic straps and metal tape, described metal tape is arranged among plastic straps; Described metal tape can be steel band, aluminium strip etc.
Described plastics can be polypropylene, polyethylene and composition thereof or hot melt adhesive or other plastics.
Mould band enhancing hollow spiral tube to obtain above-mentioned covering, the invention also discloses this and cover the manufacture method of moulding band enhancing hollow spiral tube, its manufacturing step is as follows:
1) go out machine heating and melting through square tube after being pre-mixed plastic raw material and extrude shape material embryo, covering after preheating is moulded the material embryo surface that reinforcing band presses close to molten state simultaneously, then shape material embryo enters cooling and shaping device with covering to mould together with reinforcing band, is formed to cover to mould band and strengthen square tube;
2) good the covering of cooling and shaping is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing;
Cover in above-mentioned manufacture method mould reinforcing band surface preheating temperature be at least 50 DEG C.
Mould band enhancing hollow spiral tube to obtain above-mentioned covering, this covers the manufacture method of moulding band enhancing hollow spiral tube to the invention also discloses another, and its manufacturing step is as follows:
1) be pre-mixed plastic raw material to go out machine heating and melting through square tube and extrude shape material embryo, through cooling and shaping device, form square tube;
2) mould reinforcing band press close to square tube surface by through covering of heating, by pinch roller roll extrusion, formed to cover and mould band and strengthen square tube;
3) good the covering of compound is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing;
Cover in above-mentioned manufacture method and mould reinforcing band surface temperature and be at least 160 DEG C.
Cover and mould reinforcing band and square tube when fitting, the both sides of square tube of can simultaneously fitting, or more than one group cover is set in the side of square tube moulds reinforcing band.Described covering is moulded reinforcing band and is produced by extruder in advance, by plastic straps heating raw materials molten, long fibre or metal tape are arranged in same extrusion molding mould mouth, molten plastic raw material is made to be wrapped in long fibre or metal tape surrounding, then extrude from extrusion molding mould mouth simultaneously, through cooling and shaping, be wound into cover and mould reinforcing band.
Cover for fiber reinforcement and mould band, described preheating or heating way can be resistance heating, infrared heating; Metal tape is strengthened to cover and moulds band, except above-mentioned heating way, can also radio frequency heating be adopted.
The described plastic raw material formula be pre-mixed is HDPE plastic 100 parts, increases firm masterbatch 25-50 part, black masterbatch 1-3 part, absorbent masterbatch 2.5-5 part, plasticizer 0-10 part, compatibilizer 0-5 part; The flexural modulus of described HDPE plastic, at more than 1000MPa, is the mixture of virgin material and reclaiming material; Described plasticizer can be one or more mixtures of POE, SBS, SEBS, CPE, LLDPE, LDPE, or one or more mixtures of the maleic anhydride grafts of POE, SBS, SEBS, CPE, LLDPE, LDPE, described compatibilizer is PE, POE, SBS or SEBS grafted maleic anhydride compound.The composition of raw materials of described HDPE hollow wound pipe, makes square tube have good thermoplasticity, anti-oxidant, anticorrosive, nontoxic, stable chemical performance.
This beneficial effect of the invention:
Covering in the present invention is moulded band and is strengthened hollow spiral tube and be provided with to cover in the both sides of hollow square tube and mould band, strengthen the radial bearing capacity of hollow square tube, enhance the ring stiffness of entwining tube, and cover and mould band and be set to unpack format, can be good at ensureing the stability of structure, and many groups can be arranged as required cover and mould band.Further, mould band strengthen hollow spiral tube to obtain above-mentioned covering, the present invention devise two kinds this cover and mould band and strengthen the manufacture method of hollow spiral tube, above-mentioned manufacturing approach craft is simple, utilize existing twisted pipe production process easily to realize.This covers moulds band and strengthens that hollow spiral tube structure is simple, meter Chong Geng light, and production technology is simple, has the feature of energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 covers to mould the axial sectional view of band enhancing hollow spiral tube;
Fig. 2 covers to mould band enhancing Box Section figure;
Fig. 3 is that fiber reinforcement is covered and moulded band sectional view;
Fig. 4 is that Reinforced by Metal covers and moulds band sectional view;
Fig. 5 is production-line technique layout sketch one;
Fig. 6 is production-line technique layout sketch two;
Wherein, 1, square tube; 2, glue is melted; 3, cover and mould band; 31, plastic straps; 32, long fibre; 33, metal tape; 41, square tube extruder; 42, cover and mould reinforcing band tape feeding device; 43, cooling apparatus for shaping; 44, rubber extruding machine is melted; 45, Stetch Wrapping Machine; 46, pipe support rack; 47, cutting machine; 48, embryo is expected; 49, cover and mould reinforcing band; 410, cover and mould enhancing square tube; 411, cover mould band strengthen hollow spiral tube; 412, press-roller device; 421, Preheating unit.
Embodiment
Below in conjunction with accompanying drawing one of the present invention covered and moulds band and strengthen hollow spiral tube and manufacture method thereof and be further described in detail:
embodiment 1
As shown in Figure 1, one is covered and is moulded band enhancing hollow spiral tube, includes square tube 1, melts glue 2, covers and mould band 3; Cover and mould band 3 and be longitudinally arranged at square tube 1 side and formed to cover and mould band and strengthen square tube, described covering is moulded band and is strengthened square tube single side face and have to cover and mould band 3 or double side and all have to cover and mould band 3; Described cover mould band strengthen square tube single side face one can be had to cover mould band 3 or one or more cover and mould band 3; During production, after square tube 1 extruded by First extruder, heating is covered and is moulded band 3, covering after heating is moulded band 3 and is close to sizing with square tube 1 side, to cover to mould is with enhancing square tube to be arranged on drum die again, and with this simultaneously, second extruder is extruded and melted glue 2, covering to mould is with enhancing square tube to be wound tubing, melts glue 2 bonding and covers the gap of moulding between band enhancing square tube.
Described covering is moulded band and is comprised plastic straps and reinforced core, described reinforced core is arranged among plastic straps, reinforced core is metal, plastics, fiber, cloth etc. that be banded or wire, as metal tape, wire, plastic optical fibre, plastic tape, glass fibre, burlap band.
Preferably, described covering is moulded band and to be covered for fiber reinforcement and mould band, comprising plastic body 31 and some long fibres 32; Cover the production of moulding band, same mould can be utilized, rear to long fibre 32 and heating plastic raw material is extruded in same mould, cover through cooling and shaping formation fiber reinforcement and mould band.Described long fibre 32 can be glass fibre, polyester fibre etc.
Preferably, described covering is moulded band and is moulded band for Reinforced by Metal covers, and wherein draws together plastics 31 and metal tape 33; Cover the production of moulding band, same mould can be utilized, rear to metal tape 33 and heating plastic raw material is extruded in same mould, cover through cooling and shaping formation Reinforced by Metal and mould band.Described metal tape 33 can be steel band, aluminium strip etc.
Described plastic body 31 can be polypropylene, polyethylene and composition thereof or hot melt adhesive or other plastics.
embodiment 2
Mould band enhancing hollow spiral tube to obtain above-mentioned covering, devise this and cover the manufacture method of moulding band enhancing hollow spiral tube, its manufacturing step is as follows:
1) shape material embryo is extruded through square tube extruder heating and melting after being pre-mixed plastic raw material, covering after preheating is moulded the material embryo surface that reinforcing band presses close to molten state simultaneously, then shape material embryo enters cooling and shaping device with covering to mould together with reinforcing band, is formed to cover to mould band and strengthen square tube;
2) good the covering of cooling and shaping is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing;
As shown in Figure 5, being pre-mixed plastic raw material is adding after thermosetting melts glue, enter square tube extruder 41 at extrusion die interruption-forming square tube stock 48, cover and mould reinforcing band 49 and be arranged on to cover and mould on reinforcing band tape feeding device 42, fit with square tube stock after Preheating unit 421; Laminating cover the square tube stock moulding reinforcing band 49 be transported to cooling apparatus for shaping 43 is formed after cooling and shaping cover mould enhancing square tube 410, cover mould strengthen on drum die that square tube 410 is transported to Stetch Wrapping Machine 45 Wrapping formed, melt rubber extruding machine 44 extrude molten melt glue bond gap formed cover mould band strengthen hollow spiral tube 411, then enhancing hollow spiral tube 411 is with to carry out roll extrusion through press-roller device 412 to covering to mould, be transported to pipe support rack 46 after cooling and shaping, cutting machine 47 will cover to mould is with enhancing hollow spiral tube 411 to cut off formation fixed length tubing.
The described plastic raw material formula be pre-mixed is HDPE plastic 100 parts, increases firm masterbatch 25-50 part, black masterbatch 1-3 part, absorbent masterbatch 2.5-5 part, plasticizer 0-10 part, compatibilizer 0-5 part; Described HDPE plastic be flexural modulus at more than 1000MPa, be the mixture of virgin material and reclaiming material; Described plasticizer can be one or more mixtures of POE, SBS, SEBS, CPE, LLDPE, LDPE, or one or more mixtures of the maleic anhydride grafts of POE, SBS, SEBS, CPE, LLDPE, LDPE, described compatibilizer is PE, POE, SBS or SEBS grafted maleic anhydride compound.The composition of raw materials of described HDPE hollow wound pipe, makes square tube have good thermoplasticity, anti-oxidant, anticorrosive, nontoxic, stable chemical performance.
Cover in above-mentioned manufacture method mould reinforcing band surface preheating temperature be at least 50 DEG C.
Cover and mould reinforcing band and square tube when fitting, the both sides of square tube of can simultaneously fitting, or more than one group cover is set in the side of square tube moulds reinforcing band.Described covering is moulded reinforcing band and is produced by extruder in advance, by plastic straps heating raw materials molten, long fibre or metal tape are arranged in same extrusion molding mould mouth, molten plastic raw material is made to be wrapped in long fibre or metal tape surrounding, then extrude from extrusion molding mould mouth simultaneously, through cooling and shaping, be wound into cover and mould reinforcing band.
Cover for fiber reinforcement and mould band, described preheating or heating way can be resistance heating, infrared heating; Metal tape is strengthened to cover and moulds band, except above-mentioned heating way, can also radio frequency heating be adopted.
embodiment 3
Mould band enhancing hollow spiral tube to obtain above-mentioned covering, this covers the manufacture method of moulding band enhancing hollow spiral tube to devise another, and its manufacturing step is as follows:
1) be pre-mixed plastic raw material and extrude shape material embryo through square tube extruder heating and melting, through cooling and shaping device, form square tube;
2) mould reinforcing band press close to square tube surface by through covering of heating, by pinch roller roll extrusion, formed to cover and mould band and strengthen square tube;
3) good the covering of compound is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing;
As shown in Figure 6, be pre-mixed plastic raw material and adding after thermosetting melts glue, enter square tube extruder 41 at extrusion die interruption-forming square tube stock 48, square tube stock 48 enters cooling apparatus for shaping 43 and form square tube after cooling and shaping; Cover and mould reinforcing band 49 and be arranged on to cover and mould on reinforcing band tape feeding device 42, fit with square tube after Preheating unit 421; Laminating cover the square tube stock moulding reinforcing band 49 is formed after cooling and shaping cover mould enhancing square tube 410, cover mould strengthen on drum die that square tube 410 is transported to Stetch Wrapping Machine 45 Wrapping formed, melt rubber extruding machine 44 extrude molten melt glue bond gap formed cover mould band strengthen hollow spiral tube 411, then enhancing hollow spiral tube 411 is with to carry out roll extrusion through press-roller device 412 to covering to mould, be transported to pipe support rack 46 after cooling and shaping, cutting machine 47 will cover to mould is with enhancing hollow spiral tube 411 to cut off formation fixed length tubing.
The described plastic raw material formula be pre-mixed is HDPE plastic 100 parts, increases firm masterbatch 25-50 part, black masterbatch 1-3 part, absorbent masterbatch 2.5-5 part, plasticizer 0-10 part, compatibilizer 0-5 part; Described HDPE plastic be flexural modulus at more than 1000MPa, be the mixture of virgin material and reclaiming material; Described plasticizer can be one or more mixtures of POE, SBS, SEBS, CPE, LLDPE, LDPE, or one or more mixtures of the maleic anhydride grafts of POE, SBS, SEBS, CPE, LLDPE, LDPE, described compatibilizer is PE, POE, SBS or SEBS grafted maleic anhydride compound.The composition of raw materials of described HDPE hollow wound pipe, makes square tube have good thermoplasticity, anti-oxidant, anticorrosive, nontoxic, stable chemical performance.
Cover in above-mentioned manufacture method and mould reinforcing band surface temperature and be at least 160 DEG C.
Cover and mould reinforcing band and square tube when fitting, the both sides of square tube of can simultaneously fitting, or more than one group cover is set in the side of square tube moulds reinforcing band.Described covering is moulded reinforcing band and is produced by extruder in advance, by plastic straps heating raw materials molten, long fibre or metal tape are arranged in same extrusion molding mould mouth, molten plastic raw material is made to be wrapped in long fibre or metal tape surrounding, then extrude from extrusion molding mould mouth simultaneously, through cooling and shaping, be wound into cover and mould reinforcing band.
Cover for fiber reinforcement and mould band, described preheating or heating way can be resistance heating, infrared heating; Metal tape is strengthened to cover and moulds band, except above-mentioned heating way, can also radio frequency heating be adopted.
Claims (12)
1. cover and mould a band enhancing hollow spiral tube, include square tube (1), melt glue (2), cover and mould band (3); It is characterized in that, cover and mould band (3) and be longitudinally arranged at square tube (1) side and formed to cover and mould band and strengthen square tube, described in cover and mould band and strengthen square tube after spiral winding, melt glue (2) be bonded as one by extruding molten, form entwining tube tubing.
2. according to claim 1 covering is moulded band and is strengthened hollow spiral tube, it is characterized in that, described in cover and mould band and strengthen square tube single side face and be provided with to cover and mould band (3) or double side and be equipped with to cover and mould band (3); Described covering is moulded band and is strengthened the same side of square tube and be provided with one and cover to mould band (3) or be provided with one or more and cover and mould band (3).
3. according to claim 1 covering moulds band enhancing hollow spiral tube, it is characterized in that, described covering is moulded band and is comprised plastic straps and reinforced core, and described reinforced core is arranged among plastic straps, and reinforced core is metal, plastics, fiber, cloth that be banded or wire.
4. according to claim 1 covering is moulded band and is strengthened hollow spiral tube, and it is characterized in that, described covering is moulded band (3) and covered for fiber reinforcement and mould band, comprising the long fibre (32) of plastic straps (31) and more than; Described long fibre (32) is arranged among plastic straps (21);
Or described covering is moulded band (3) and is moulded band for Reinforced by Metal covers, and wherein draws together plastic straps (31) and metal tape (33); Described metal tape (33) is arranged among plastic straps (21).
5. according to claim 4 covering moulds band enhancing hollow spiral tube, and it is characterized in that, described long fibre (32) is glass fibre or polyester fibre; Described metal tape (33) is steel band or aluminium strip; Described plastic straps (31) is polypropylene, polyethylene, hot melt adhesive or polypropylene and polyethylene mixture.
6. produce covering described in any one of claim 1-5 and mould the manufacture method that band strengthens hollow spiral tube, its key step is as follows:
1) shape material embryo is extruded through square tube extruder heating and melting after being pre-mixed plastic raw material, covering after preheating is moulded the material embryo surface that reinforcing band (3) presses close to molten state simultaneously, then shape material embryo enters cooling and shaping device with covering to mould together with reinforcing band (3), is formed to cover to mould band and strengthen square tube;
2) good the covering of cooling and shaping is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing.
7. according to claim 6 covering moulds the manufacture method that band strengthens hollow spiral tube, it is characterized in that, described covering is moulded reinforcing band (3) and is produced by extruder in advance, by plastic straps heating raw materials molten, long fibre or metal tape are arranged in same extrusion molding mould mouth, make molten plastic raw material be wrapped in long fibre or metal tape surrounding, then extrude from extrusion molding mould mouth simultaneously, through cooling and shaping, be wound into cover and mould reinforcing band (3); Cover and mould reinforcing band (3) surperficial preheating temperature and be at least 50 DEG C.
8. produce covering described in any one of claim 1-5 and mould the manufacture method that band strengthens hollow spiral tube, its key step is as follows:
1) be pre-mixed plastic raw material and extrude shape material embryo through square tube extruder heating and melting, through cooling and shaping device, form square tube;
2) mould reinforcing band (3) press close to square tube surface by through covering of heating, by pinch roller roll extrusion, formed to cover and mould band and strengthen square tube;
3) good the covering of compound is moulded band and strengthen drum die that square tube is arranged on Stetch Wrapping Machine through being wound around and extruding molten melt glue bond gap by melting rubber extruding machine, cooled by pinch roller roll extrusion, fixed length cutting becomes tubing.
9. according to claim 8 covering moulds the manufacture method that band strengthens hollow spiral tube, it is characterized in that, described covering is moulded reinforcing band (3) and is produced by extruder in advance, by plastic straps heating raw materials molten, long fibre or metal tape are arranged in same extrusion molding mould mouth, make molten plastic raw material be wrapped in long fibre or metal tape surrounding, then extrude from extrusion molding mould mouth simultaneously, through cooling and shaping, be wound into cover and mould reinforcing band (3); Described covering is moulded reinforcing band (3) surperficial preheating temperature and is at least 160 DEG C.
10. covering according to claim 6 or 8 is moulded band and is strengthened the manufacture method of hollow spiral tube, it is characterized in that, the preheating of moulding band (3) is covered in fiber reinforcement or heating way is resistance heating or infrared heating.
11. covering according to claim 6 or 8 are moulded band and are strengthened the manufacture method of hollow spiral tube, it is characterized in that, metal tape strengthens the preheating covering and mould band (3) or heating way is resistance heating, infrared heating or radio frequency heating.
12. covering according to claim 6 or 8 mould the manufacture method that band strengthens hollow spiral tube, it is characterized in that, the described plastic raw material formula be pre-mixed is HDPE plastic 100 parts, increase firm masterbatch 25-50 part, black masterbatch 1-3 part, absorbent masterbatch 2.5-5 part, plasticizer 0-10 part, compatibilizer 0-5 part; The flexural modulus of described HDPE plastic, at more than 1000MPa, is the mixture of virgin material and reclaiming material; Described plasticizer can be one or more mixtures of POE, SBS, SEBS, CPE, LLDPE, LDPE, or one or more mixtures of the maleic anhydride grafts of POE, SBS, SEBS, CPE, LLDPE, LDPE, described compatibilizer is PE, POE, SBS or SEBS grafted maleic anhydride compound.
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Address after: 510800 No.8, Xixiu Road, Maxi village, Xiuquan street, Huadu District, Guangzhou City, Guangdong Province Patentee after: Ad pipeline (Guangdong) Co.,Ltd. Address before: 510800 East 1, Dongxiu Road, Maxi village, Xinhua Street, Huadu District, Guangzhou, Guangdong Patentee before: GUANGDONG YONGGAO PLASTIC INDUSTRY DEVELOPMENT Co.,Ltd. |