CN104987619A - PVC-U environment-friendly water supply pipe and machining process thereof - Google Patents
PVC-U environment-friendly water supply pipe and machining process thereof Download PDFInfo
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- CN104987619A CN104987619A CN201510387493.3A CN201510387493A CN104987619A CN 104987619 A CN104987619 A CN 104987619A CN 201510387493 A CN201510387493 A CN 201510387493A CN 104987619 A CN104987619 A CN 104987619A
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- pvc
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- pipe
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Classifications
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- 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
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention relates to a PVC-U environment-friendly water supply pipe and a machining process thereof. The PVC-U environment-friendly water supply pipe is composed of, by weight, 100 kg of PVC resin, 5 kg of light calcium carbonate, 3 kg of CPE, 3 kg of TiO2, 0.2 kg of polyethylene wax and 4kg of calcium zinc stabilizer. The machining method comprises the steps of raw material mixing, hot mixing, cold mixing, extruding, pipe setting, cooling, pipe traction, cutting and stacking. The PVC-U environment-friendly water supply pipe manufactured through the machining process is good in low-temperature toughness, rigidity, ring rigidity and creep-resistant ability, in the long-term using process, the situation that due to gravity, the pipe deforms is avoided, the service life of the pipe is prolonged, and the pipe can be popularized easily and widely.
Description
Technical field
The present invention relates to a kind of complete processing of PVC-U environment-friendly type water service pipe, belong to plastic pipe processing technique field.
Background technology
Along with the rapid growth that Chinese national economy is continual and steady, for cities and towns infrastructure construction provides good macro environment and broad space.Along with China is for the pay attention to day by day of environment protection, governments at all levels of both the central and local governments have put into effect the policies and regulations of a series of water saving, pollution treatment protection of the environment.Water supply, water saving, draining and waste water control will become the emphasis of urban municipal construction from now on, and this provides market development space for applying of heavy-caliber plastic pipe.Because structured wall popes can conservation, reduce costs, therefore structured wall popes has become the main product of heavy caliber draining blow-off line.The U-PVC double-wall corrugated pipe that China is used for draining and blow-off line has good rigidity, the advantages such as price is low; But also there is the shortcoming of low temperature impact properties difference, be very easy to when north of china in winter is constructed damaged especially.And PE double-wall corrugated pipe has obvious advantage in low-temperature flexibility, but due to PE material behavior, its rigidity comparatively cement pipe is poor, comparatively PVC corrugated tube is poor for the ring stiffness of tubing and creep resisting ability, in life-time service process, easily by gravity deformation, affect product work-ing life.
Summary of the invention
The object of the invention is to: for the defect of prior art, propose a kind of complete processing of PVC-U environment-friendly type water service pipe, the PPVC-U environment-friendly type water service pipe made by this complete processing, there is low-temperature flexibility, rigidity, ring stiffness and creep resisting ability all good time not only, and in life-time service process, because of gravity deformation, thus the work-ing life of product can not be extended, contribute to the popularization of wide model.
The technical solution adopted in the present invention is: a kind of PVC-U environment-friendly type water service pipe, and the formula of described PVC-U environment-friendly type water service pipe is made up of the raw material of following weight:
Polyvinyl chloride resin 100
Light calcium carbonate 5
CPE 3
TiO2 3
Polyethylene wax 0.2
Calcium zinc stabilizer 4.
In the present invention: a kind of complete processing of PVC-U environment-friendly type water service pipe, comprises the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC-U raw material, colour batch, stablizer, defoamer, antioxidants, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, heat are mixed: the mixed object of heat be each component in material collided fully under the effect of blade, rub, convection current, each component is made to reach maximum dispersion, and material is heated up, reach preplasticizing, the mixed temperature general control of heat is at about 120 DEG C, the accuracy of hot mixing to be noted in production process, the mixed temperature accuracy of Timing measurement heat, prevent the mixed temperature control of heat and material from burning out;
3rd step, cold mixed: cold mixed be that high-temperature material is cooled fully, avoid PVC material because of decomposing under the environment of comparatively high temps for a long time, thus when making tube forming, the materials degree of plasticification heterogeneity of batch mixing each time, production is not easily stablized; Cold being mixed with helps prevent material conglomeration simultaneously, improves blanking, steady extruding amount, generally cold
Mixed temperature controls at about 40 DEG C, and at this temperature, material can deposit more than 24 hours, and blanking is all right, and main frame torque ripple is little, administration measure;
4th step, to extrude: extruding is the shaping core procedure of plastic pipe; The kernal hardware of extrusion moulding is forcing machine, and " heart " of forcing machine is screw rod and machine barrel, the quality of screw rod and machine barrel quality and the supporting plasticizing capacity that whether rationally directly can have influence on board, so, for different extrusion equipments, should not adopt unified formula, namely formulating of recipe should be determined according to the plasticizing capacity of board; Principle is that degree of plasticification controls to be advisable about 60 ~ 65%, the setting of temperature can adopt the setting scheme of " saddle-shape ", both temperature setting was from machine barrel to merging core, be " saddle-shape " square cloth again from merging core to machine head port mould, adopt this setting, thermograde is comparatively large, and melt pressure is large, shaping rear goods are more closely knit, and shock strength, hydraulic pressure resistant intensity are high.It is worth mentioning that, main frame electric current will control about 50 ~ 60% in process of production, unsuitable too high or too low, otherwise can affect main frame vacuum tightness, more obvious when particularly the wearing and tearing of fuselage screw rod are comparatively serious, in addition also can cause and plastify excessively or plastify bad;
5th step, sizing, cooling: PVC Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
6th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
7th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
8th step, stacking: the action of tilting trestle stirring is controlled to realize by gas circuit by cylinder, tilting trestle is provided with a stop means, after slitting saw cuts off section bar, section bar continues conveying, and after time delay, cylinder enters work, realize stirring action, reach discharging object, automatically reset through the time delay several seconds after discharging, wait for that next circulates.
After adopting technique scheme, beneficial effect of the present invention is: the PVC-U environment-friendly type water service pipe made by this complete processing, there is low-temperature flexibility, rigidity, ring stiffness and creep resisting ability all good time not only, and in life-time service process, can not because of gravity deformation, thus extend the work-ing life of product, contribute to the popularization of wide model.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
A kind of PVC-U environment-friendly type water service pipe, the formula of described PVC-U environment-friendly type water service pipe is made up of (kg) the raw material of following weight:
Polyvinyl chloride resin 100
Light calcium carbonate 5
CPE 3
TiO2 3
Polyethylene wax 0.2
Calcium zinc stabilizer 4.
In the present invention: a kind of complete processing of PPVC-U environment-friendly type water service pipe, comprises the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC-U raw material, colour batch, stablizer, defoamer, antioxidants, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, heat are mixed: the mixed object of heat be each component in material collided fully under the effect of blade, rub, convection current, each component is made to reach maximum dispersion, and material is heated up, reach preplasticizing, the mixed temperature general control of heat is at about 120 DEG C, the accuracy of hot mixing to be noted in production process, the mixed temperature accuracy of Timing measurement heat, prevent the mixed temperature control of heat and material from burning out;
3rd step, cold mixed: cold mixed be that high-temperature material is cooled fully, avoid PVC material because of decomposing under the environment of comparatively high temps for a long time, thus when making tube forming, the materials degree of plasticification heterogeneity of batch mixing each time, production is not easily stablized; Cold being mixed with helps prevent material conglomeration simultaneously, improves blanking, steady extruding amount, generally cold
Mixed temperature controls at about 40 DEG C, and at this temperature, material can deposit more than 24 hours, and blanking is all right, and main frame torque ripple is little, administration measure;
4th step, to extrude: extruding is the shaping core procedure of plastic pipe; The kernal hardware of extrusion moulding is forcing machine, and " heart " of forcing machine is screw rod and machine barrel, the quality of screw rod and machine barrel quality and the supporting plasticizing capacity that whether rationally directly can have influence on board, so, for different extrusion equipments, should not adopt unified formula, namely formulating of recipe should be determined according to the plasticizing capacity of board; Principle is that degree of plasticification controls to be advisable about 60 ~ 65%, the setting of temperature can adopt the setting scheme of " saddle-shape ", both temperature setting was from machine barrel to merging core, be " saddle-shape " square cloth again from merging core to machine head port mould, adopt this setting, thermograde is comparatively large, and melt pressure is large, shaping rear goods are more closely knit, and shock strength, hydraulic pressure resistant intensity are high.It is worth mentioning that, main frame electric current will control about 50 ~ 60% in process of production, unsuitable too high or too low, otherwise can affect main frame vacuum tightness, more obvious when particularly the wearing and tearing of fuselage screw rod are comparatively serious, in addition also can cause and plastify excessively or plastify bad;
5th step, sizing, cooling: PVC Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
6th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
7th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
8th step, stacking: the action of tilting trestle stirring is controlled to realize by gas circuit by cylinder, tilting trestle is provided with a stop means, after slitting saw cuts off section bar, section bar continues conveying, and after time delay, cylinder enters work, realize stirring action, reach discharging object, automatically reset through the time delay several seconds after discharging, wait for that next circulates.
Above the specific embodiment of the present invention is described, but the present invention is not limited to above description.For a person skilled in the art, any equal amendment to the technical program and substitute be all within the scope of the invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should be encompassed in scope of the present invention.
Claims (2)
1. a PVC-U environment-friendly type water service pipe, is characterized in that: the formula of described PVC-U environment-friendly type water service pipe is made up of (kg) the raw material of following weight:
Polyvinyl chloride resin 100
Light calcium carbonate 5
CPE 3
TiO2 3
Polyethylene wax 0.2
Calcium zinc stabilizer 4.
2. a complete processing for PVC-U environment-friendly type water service pipe, is characterized in that: comprise the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC-U raw material, colour batch, stablizer, defoamer, antioxidants, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, heat are mixed: the mixed object of heat be each component in material collided fully under the effect of blade, rub, convection current, each component is made to reach maximum dispersion, and material is heated up, reach preplasticizing, the mixed temperature general control of heat is at about 120 DEG C, the accuracy of hot mixing to be noted in production process, the mixed temperature accuracy of Timing measurement heat, prevent the mixed temperature control of heat and material from burning out;
3rd step, cold mixed: cold mixed be that high-temperature material is cooled fully, avoid PVC material because of decomposing under the environment of comparatively high temps for a long time, thus when making tube forming, the materials degree of plasticification heterogeneity of batch mixing each time, production is not easily stablized; Cold being mixed with helps prevent material conglomeration simultaneously, improves blanking, steady extruding amount, generally cold
Mixed temperature controls at about 40 DEG C, and at this temperature, material can deposit more than 24 hours, and blanking is all right, and main frame torque ripple is little, administration measure;
4th step, to extrude: extruding is the shaping core procedure of plastic pipe, the kernal hardware of extrusion moulding is forcing machine, and " heart " of forcing machine is screw rod and machine barrel, the quality of screw rod and machine barrel quality and the supporting plasticizing capacity that whether rationally directly can have influence on board, so, for different extrusion equipments, should not adopt unified formula, namely formulating of recipe should be determined according to the plasticizing capacity of board, principle is that degree of plasticification controls to be advisable about 60 ~ 65%, the setting of temperature can adopt the setting scheme of " saddle-shape ", both temperature setting was from machine barrel to merging core, be " saddle-shape " square cloth again from merging core to machine head port mould, adopt this setting, thermograde is larger, melt pressure is large, shaping rear goods are more closely knit, shock strength, hydraulic pressure resistant intensity is high, it is worth mentioning that, main frame electric current will control about 50 ~ 60% in process of production, unsuitable too high or too low, otherwise main frame vacuum tightness can be affected, it is more obvious when particularly the wearing and tearing of fuselage screw rod are comparatively serious, in addition also can cause and plastify excessively or plastify bad,
5th step, sizing, cooling: PVC Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
6th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
7th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
8th step, stacking: the action of tilting trestle stirring is controlled to realize by gas circuit by cylinder, tilting trestle is provided with a stop means, after slitting saw cuts off section bar, section bar continues conveying, and after time delay, cylinder enters work, realize stirring action, reach discharging object, automatically reset through the time delay several seconds after discharging, wait for that next circulates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510387493.3A CN104987619A (en) | 2015-07-06 | 2015-07-06 | PVC-U environment-friendly water supply pipe and machining process thereof |
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| CN201510387493.3A CN104987619A (en) | 2015-07-06 | 2015-07-06 | PVC-U environment-friendly water supply pipe and machining process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105175949A (en) * | 2015-10-31 | 2015-12-23 | 贵州同益塑料制品有限公司 | Drain pipe and preparation method thereof |
| CN106426993A (en) * | 2016-10-17 | 2017-02-22 | 广州至简通用设备制造有限公司 | Pipe making method of hot pressing plasticizing compound pipe |
| CN107345016A (en) * | 2016-05-06 | 2017-11-14 | 江苏桓通环境科技有限公司 | A kind of HDPE steel band reinforced spiral ripple pipes and its production technology |
| CN107641263A (en) * | 2016-07-22 | 2018-01-30 | 江苏桓通环境科技有限公司 | A kind of spigot-and-socket steel band reinforced polyethylene spiral ripple pipe and its processing technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157783A (en) * | 2007-11-08 | 2008-04-09 | 新疆屯河节水科技有限公司 | Leadless polyvinyl chloride pipe |
| US20130068342A1 (en) * | 2003-06-13 | 2013-03-21 | Underground Solutions Technologies Group, Inc. | Polyvinyl Chloride Formulations |
| CN104448606A (en) * | 2014-11-05 | 2015-03-25 | 衡水金昊农业科技开发有限公司 | Hard PVC pipe and preparation method thereof |
-
2015
- 2015-07-06 CN CN201510387493.3A patent/CN104987619A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130068342A1 (en) * | 2003-06-13 | 2013-03-21 | Underground Solutions Technologies Group, Inc. | Polyvinyl Chloride Formulations |
| CN101157783A (en) * | 2007-11-08 | 2008-04-09 | 新疆屯河节水科技有限公司 | Leadless polyvinyl chloride pipe |
| CN104448606A (en) * | 2014-11-05 | 2015-03-25 | 衡水金昊农业科技开发有限公司 | Hard PVC pipe and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105175949A (en) * | 2015-10-31 | 2015-12-23 | 贵州同益塑料制品有限公司 | Drain pipe and preparation method thereof |
| CN107345016A (en) * | 2016-05-06 | 2017-11-14 | 江苏桓通环境科技有限公司 | A kind of HDPE steel band reinforced spiral ripple pipes and its production technology |
| CN107641263A (en) * | 2016-07-22 | 2018-01-30 | 江苏桓通环境科技有限公司 | A kind of spigot-and-socket steel band reinforced polyethylene spiral ripple pipe and its processing technology |
| CN106426993A (en) * | 2016-10-17 | 2017-02-22 | 广州至简通用设备制造有限公司 | Pipe making method of hot pressing plasticizing compound pipe |
| CN106426993B (en) * | 2016-10-17 | 2019-05-14 | 广州至简通用设备制造有限公司 | A kind of pipe-making method of hot pressing plasticizing multiple tube |
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Application publication date: 20151021 |
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