CN111231258A - Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof - Google Patents
Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof Download PDFInfo
- Publication number
- CN111231258A CN111231258A CN202010068750.8A CN202010068750A CN111231258A CN 111231258 A CN111231258 A CN 111231258A CN 202010068750 A CN202010068750 A CN 202010068750A CN 111231258 A CN111231258 A CN 111231258A
- Authority
- CN
- China
- Prior art keywords
- pipe
- hollow wall
- formed plastic
- wall pipe
- plastic double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an integrally-formed plastic double-layer spiral rib hollow wall pipe, a forming die and a production process thereof, wherein the integrally-formed plastic double-layer spiral rib hollow wall pipe comprises a hollow pipe body, spiral reinforcing ribs are connected between the inner wall and the outer wall of the hollow pipe body, the forming die comprises a mouth die, a core die, a rotary core, a rotary disk seat and a pin key, the mouth die is sleeved on the outer side of the core die, a cavity between the mouth die and the core die is used as a forming cavity, the rotary core is limited in the forming cavity, one end of the forming cavity is communicated with a discharge pipe of an extruder, the other end of the forming cavity is provided with the rotary disk seat, one end of the core die protrudes relative to the mouth die to form a guide column, the rotary disk seat is provided with a guide sleeve, the rotary disk seat is sleeved on the outer side of the guide column through the. The integrally formed plastic double-layer spiral rib hollow wall pipe has an integral structure, so that the quality of the structural wall pipe is ensured, and the overall external pressure resistance of the pipe is improved.
Description
Technical Field
The invention relates to the technical field of pipe production and processing, in particular to an integrally-formed plastic double-layer spiral rib hollow wall pipe, a forming die and a production process thereof.
Background
Plastic pipes are generally produced by extruding synthetic resins, i.e. polyesters, as raw materials in a pipe-making machine by the "plastic" method with the addition of stabilizers, lubricants, plasticizers, etc. Because of its light weight, corrosion resistance, beautiful appearance, no bad smell, easy processing, convenient construction and other features, it has been used in building engineering more and more widely. The plastic pipe is mainly used as a running water supply system piping, a drainage, exhaust and pollution discharge sanitary pipe, an underground drainage pipe system, a rainwater pipe, a threading pipe for electric wire installation and assembly sleeve and the like of a house building.
In the known technology, plastic pipes are various in variety, generally prepared plastic materials are manufactured by a plastic pipe extruder, the pipe wall material is single, the product performance is different, the application is wide, the annual output and sales volume are huge, and a hollow wall pipe is a common plastic pipe. The hollow wall pipe is a pipe with high external pressure resistance, which is prepared by taking PVC resin as a main raw material and adopting an extrusion molding process, and has the advantages of good production continuity, low cost, high production efficiency and good production safety. The existing hollow wall pipe has the advantages that the reinforcing ribs are parallel to the direction of the pipe, the bearing performance is poor, the external pressure resistance is low, the higher and higher use requirements cannot be met, and inconvenience is brought to the use of people.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an integrally-formed plastic double-layer spiral rib hollow wall pipe, a forming die and a production process thereof.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the hollow wall pipe in the double-deck spiral muscle of integrated into one piece plastics, this hollow wall pipe in the double-deck spiral muscle of integrated into one piece plastics includes the cavity body, be connected with the spiral strengthening rib between the inner wall of cavity body, the outer wall, the medial extremity and the inner wall of spiral strengthening rib are even as an organic whole, and the outside end is even as an organic whole with the outer wall.
Further, in the integrally formed plastic double-layer spiral rib hollow wall pipe, the outer diameter of the integrally formed plastic double-layer spiral rib hollow wall pipe is 20-3000 mm.
The forming die of hollow wall pipe in double-deck spiral muscle of integrated into one piece plastics, this forming die include bush, mandrel, rotatory core, rotatory disk seat and round pin key, the outside at the mandrel is established to the bush cover, cavity between bush and the mandrel is as the one-tenth die cavity, the inside wall and the lateral wall in one-tenth die cavity are smooth wall, the restriction has the rotatory core that is used for shaping spiral strengthening rib to use in the one-tenth die cavity, the one end in one-tenth die cavity and the discharging pipe intercommunication of extruder, the other end are equipped with the rotary disk seat that provides rotatory power for rotatory core, the one end of mandrel forms the guide post for the bush protrusion, the rotary disk seat is equipped with the uide bushing, the rotary disk seat is established self cover in the guide post outside through the uide bushing, the keyway of its axial displacement usefulness is seted up in the outside that the rotary disk seat is located the uide bushing, the joint.
Further, in the forming die for the integrally formed plastic double-layer spiral rib hollow wall pipe, a die cooling water well is formed in the die.
Further, in the forming die for the integrally formed plastic double-layer spiral rib hollow wall pipe, the core die cooling water well is arranged in the core die, and the core die cooling water well is externally connected with a water inlet and outlet nozzle positioned at the outer end of the guide post.
The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe comprises the following steps:
1) mixing materials: selecting qualified raw materials, and putting the raw materials into a mixer set according to the proportion to be uniformly mixed;
2) feeding: putting the mixed materials into a hopper of an extruder to provide continuous feeding for the extruder;
3) heating: heating the extruder barrel until the material is in a molten and flowable state;
4) extruding: extruding the flowable material entering the extruder through the extruder, and extruding the integrally formed plastic double-layer spiral rib hollow wall pipe through a forming die;
5) shaping and cooling: the product obtained in the step 4) is shaped and cooled by cooling equipment, and then the pipe is conveyed to a bracket from a forming die;
6) cutting: cutting the bell mouth and the spigot at the head end and the tail end of the pipe, and finishing the port of the pipe to enable the pipe to be smooth and regular in appearance.
Further, in the production process of the integrally formed plastic double-layer spiral rib hollow wall pipe, the temperature of the charging barrel in the step 3) is 180-220 ℃.
Further, in the production process of the integrally formed plastic double-layer spiral rib hollow wall pipe, the cooling equipment in the shaping and cooling in the step 5) is a cooling water tank, and the temperature of water flow in the water tank is 20-30 degrees.
Further, in the production process of the integrally-formed plastic double-layer spiral rib hollow wall pipe, the raw materials in the mixed material in the step 1) comprise resin, color master batches and additives, wherein the resin accounts for 80-93% of the total weight in percentage by mass, the color master batches account for 5-10% of the total weight in percentage by mass, and the additives account for 2-10% of the total weight in percentage by mass.
Further, in the production process of the integrally-formed plastic double-layer spiral rib hollow wall pipe, the resin is at least one of PP resin, PE resin and PVC resin; the color master batch is a short fiber color master batch.
The invention has the beneficial effects that:
1. the integrally formed plastic double-layer spiral rib hollow wall pipe is cooled and formed into an integral structure from an extruder neck ring die to a forming die, and a spiral rib structure is formed between the inner wall and the outer wall after plastic is extruded from the neck ring die and enters the forming die; the whole pipe is of an integral structure, so that the quality of the structural wall pipe is ensured, and the external pressure resistance of the whole pipe is improved; the performance is greatly superior to that of the common hollow wall pipe with parallel reinforcing ribs.
2. The installation performance is excellent. The pipeline connection adopts the elastic sealing ring, the sealing is good, the operation is simple and convenient, the efficiency is high, the leakage can be avoided, and the service life identity and the operation safety of a pipeline system are ensured. Meanwhile, the product has lighter weight than other pipes under the same application condition, is convenient to transport and convenient and quick to construct, can reduce construction cost, can directly lay the pipes in the application range without requiring a concrete cushion and a concrete pipe base groove to be qualified, basically realizes excavation, pipe laying and backfilling at the same time, simplifies the construction procedure and shortens the construction period.
3. Good comprehensive rigidity and flexibility. The integrally formed plastic double-layer spiral rib hollow wall pipe has good flexibility in macroscopic view, and the local pipe section has strong rigidity and overall external pressure resistance, so that the traffic safety can be ensured when the pipe is used under an overweight load pavement. Due to the flexibility of the pipe, when earthquake and surface uneven settlement and other geological activities occur, the damage loss of the pipeline can be reduced to the minimum, so that the earthquake resistance and disaster reduction capability of the public facilities are improved.
4. Corrosion resistance, aging resistance and 50 years of service life. Has strong chemical corrosion and erosion resistance. Therefore, when the double-layer spiral rib hollow wall pipe is used for conveying corrosive soil, no anticorrosive treatment is needed, and the performance of the double-layer spiral rib hollow wall pipe is greatly superior to that of other pipes. In the design process of the product, a reasonable product structure form is selected, the service life of the plastic pipe is ensured to be more than 50 years, and the plastic pipe is free of maintenance in the service life.
5. The tube wall is smooth. The water delivery quantity is large, so that the friction resistance is small when fluid is delivered, and compared with a product with the same inner diameter, the water delivery quantity can be greatly improved under the same use condition compared with a cement pipe. Therefore, the double-layer spiral rib hollow wall pipe with the smaller inner diameter can be used for replacing a cement pipe with the larger inner diameter, the reliability of the project using the structural wall pipe under the same condition is greatly improved compared with the traditional pipe in application, the comprehensive benefit is obvious, and the double-layer spiral rib hollow wall pipe has more superiority particularly in the situations of narrow construction site, dense building, complex underground pipeline, busy traffic road section and auxiliary construction of acid-base soil.
6. The production process is simple, the steps are reasonable, and the hollow-wall pipe with the double-layer reinforcing ribs with the spiral structure is manufactured from the mouth mold of the extruder to the mold through the rotating machine head with good continuity. The whole pipe is of an integral structure, the production safety is improved, the product is provided with the spiral reinforcing ribs, the quality of the structural wall pipe is guaranteed, the overall external pressure resistance of the pipe is improved, and the using effect is good.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a mold for molding a plastic double-layer spiral rib hollow wall pipe according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic structural view of the integrally formed plastic double-layer spiral rib hollow wall pipe of the present invention;
FIG. 4 is a schematic cross-sectional view taken along plane B-B of FIG. 3;
in the drawings, the parts are numbered as follows:
1-mouth mold, 2-core mold, 3-rotary core, 4-mouth mold cooling water well, 5-core mold cooling water well, 6-rotary disk seat, 7-pin key, 8-water inlet and outlet nozzle, 9-integrally formed plastic double-layer spiral rib hollow wall pipe, 901-inner wall, 902-outer wall and 903-spiral reinforcing rib.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 3-4, the present embodiment is an integrally formed plastic double-layer spiral rib hollow wall pipe, the integrally formed plastic double-layer spiral rib hollow wall pipe 9 includes a hollow pipe body, a spiral reinforcing rib 903 is connected between an inner wall 901 and an outer wall 902 of the hollow pipe body, an inner side end of the spiral reinforcing rib 903 is connected with the inner wall 901, and an outer side end of the spiral reinforcing rib 903 is connected with the outer wall 902. The outer diameter of the integrally formed plastic double-layer spiral rib hollow wall pipe 9 is 20-3000 mm.
Example 2
Referring to fig. 1-4, the present embodiment is a forming mold for integrally forming a plastic double-layer spiral rib hollow wall pipe, and the forming mold includes a mouth mold 1, a core mold 2, a rotary core 3, a rotary disk seat 6 and a pin 7. The neck ring mold 1 is sleeved on the outer side of the core mold 2, a cavity between the neck ring mold 1 and the core mold 2 is used as a molding cavity, the inner side wall and the outer side wall of the molding cavity are smooth walls, and a rotating core 3 for molding the spiral reinforcing rib 903 is limited in the molding cavity. One end of the molding cavity is communicated with a discharge pipe of the extruder, and the other end of the molding cavity is provided with a rotating disk seat 6 which provides rotating power for the rotating core 3. One end of the core die 2 protrudes relative to the die to form a guide column, the rotating disk seat 6 is provided with a guide sleeve, and the rotating disk seat 6 is sleeved outside the guide column through the guide sleeve. The rotary disk seat 6 is provided with a key groove for limiting the axial displacement of the guide sleeve on the outer side of the guide sleeve, and a pin key 7 is clamped in the key groove.
In this embodiment, a mouth mold cooling water well 4 is provided in the mouth mold 1, a core mold cooling water well 5 is provided in the core mold 2, and the core mold cooling water well 5 is externally connected with a water inlet and outlet nozzle 8 located at the outer end of the guide post.
Example 3
The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe comprises the following steps:
1) mixing materials: selecting qualified raw materials, and putting the raw materials into a mixer set according to the proportion to be uniformly mixed; the raw materials comprise PP resin and short fiber color master batch, wherein the PP resin accounts for 90 percent of the total weight by mass, the short fiber color master batch accounts for 5 percent of the total weight by mass, and the auxiliary agent accounts for 5 percent of the total weight by mass;
2) feeding: putting the mixed materials into a hopper of an extruder to provide continuous feeding for the extruder;
3) heating: heating a machine barrel of an extruder until the material is in a molten and flowable state, wherein the temperature of the material barrel in heating is 200 ℃;
4) extruding: extruding the flowable material entering the extruder through the extruder, and extruding the integrally formed plastic double-layer spiral rib hollow wall pipe through a forming die;
5) shaping and cooling: the product obtained in the step 4) is shaped and cooled by cooling equipment, and then the pipe is conveyed to a bracket from a forming die;
6) cutting: cutting a socket and a spigot at the head end and the tail end of the pipe, wherein the length of the cut pipe is 6m, and finishing the port of the pipe to enable the appearance of the pipe to be smooth and regular.
Example 4
The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe comprises the following steps:
1) mixing materials: selecting qualified raw materials, putting the raw materials into a mixer set according to the proportion, and uniformly mixing, wherein the mixing time in the mixing is more than or equal to 20 min; the raw materials comprise PE resin and short fiber color master batch, wherein the PE resin accounts for 80 percent of the total weight by mass, the short fiber color master batch accounts for 10 percent of the total weight by mass, and the auxiliary agent accounts for 10 percent of the total weight by mass;
2) feeding: putting the mixed materials into a hopper of an extruder to provide continuous feeding for the extruder;
3) heating: heating a machine barrel of an extruder until the material is in a molten and flowable state, wherein the temperature of the material barrel in heating is 180 ℃;
4) extruding: extruding the flowable material entering the extruder through the extruder, and extruding the integrally formed plastic double-layer spiral rib hollow wall pipe through a forming die;
5) shaping and cooling: the product obtained in the step 4) is shaped and cooled by cooling equipment, and then the pipe is conveyed to a bracket from a forming die;
6) cutting: cutting a socket and a spigot at the head end and the tail end of the pipe, wherein the length of the cut pipe is 4m, and finishing the port of the pipe to enable the appearance of the pipe to be smooth and regular.
Example 5
The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe comprises the following steps:
1) mixing materials: selecting qualified raw materials, and putting the raw materials into a mixer set according to the proportion to be uniformly mixed; the raw materials comprise PVC resin and short fiber color master batch, wherein the PVC resin accounts for 93 percent of the total weight by mass, the short fiber color master batch accounts for 5 percent of the total weight by mass, and the auxiliary agent accounts for 2 percent of the total weight by mass;
2) feeding: putting the mixed materials into a hopper of an extruder to provide continuous feeding for the extruder;
3) heating: heating a machine barrel of an extruder until the material is in a molten and flowable state, wherein the temperature of the material barrel in heating is 220 ℃;
4) extruding: extruding the flowable material entering the extruder through the extruder, and extruding the integrally formed plastic double-layer spiral rib hollow wall pipe through a forming die;
5) shaping and cooling: the product obtained in the step 4) is shaped and cooled by cooling equipment, and then the pipe is conveyed to a bracket from a forming die;
6) cutting: cutting a socket and a spigot at the head end and the tail end of the pipe, wherein the length of the cut pipe is 8m, and finishing the port of the pipe to enable the appearance of the pipe to be smooth and regular.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. Hollow wall pipe in double-deck spiral muscle of integrated into one piece plastics, its characterized in that: the integrally-formed plastic double-layer spiral rib hollow wall pipe comprises a hollow pipe body, wherein spiral reinforcing ribs are connected between the inner wall and the outer wall of the hollow pipe body, the inner side ends of the spiral reinforcing ribs are connected with the inner wall into a whole, and the outer side ends of the spiral reinforcing ribs are connected with the outer wall into a whole.
2. The integrally formed plastic double-layer helical rib hollow wall tube according to claim 1, wherein: the outer diameter of the integrally-formed plastic double-layer spiral rib hollow wall pipe is 20-3000 mm.
3. The forming die of hollow wall pipe in the double-deck spiral muscle of integrated into one piece plastics, its characterized in that: this forming die includes bush, mandrel, rotatory core, rotatory disk seat and cotter key, the bush cover is established in the outside of mandrel, cavity between bush and the mandrel is as the shaping chamber, the inside wall and the lateral wall in shaping chamber are smooth wall, the restriction has the rotatory core that is used for shaping spiral strengthening rib to use in the shaping chamber, the one end in shaping chamber and the discharging pipe intercommunication of extruder, the other end are equipped with the rotary disk seat that provides rotatory power for rotatory core, the one end of mandrel forms the guide post for the bush protrusion, the rotary disk seat is equipped with the uide bushing, the rotary disk seat is established self cover in the guide post outside through the uide bushing, the keyway of its axial displacement usefulness of restriction is seted up in the outside that the rotary disk seat is located the uide bushing, the cotter key has been connect to the joint in the keyway.
4. The forming die for the integrally-formed plastic double-layer spiral rib hollow wall pipe according to claim 3, wherein: and a neck mold cooling water well is arranged in the neck mold.
5. The forming die for the integrally-formed plastic double-layer spiral rib hollow wall pipe according to claim 3, wherein: the mandrel is provided with a mandrel cooling well in the middle, and the mandrel cooling well is externally connected with a water inlet and outlet nozzle positioned at the outer end of the guide column.
6. The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe is characterized by comprising the following steps of:
1) mixing materials: selecting qualified raw materials, and putting the raw materials into a mixer set according to the proportion to be uniformly mixed;
2) feeding: putting the mixed materials into a hopper of an extruder to provide continuous feeding for the extruder;
3) heating: heating the extruder barrel until the material is in a molten and flowable state;
4) extruding: extruding the flowable material entering the extruder through the extruder, and extruding the integrally formed plastic double-layer spiral rib hollow wall pipe through a forming die;
5) shaping and cooling: the product obtained in the step 4) is shaped and cooled by cooling equipment, and then the pipe is conveyed to a bracket from a forming die;
6) cutting: cutting the bell mouth and the spigot at the head end and the tail end of the pipe, and finishing the port of the pipe to enable the pipe to be smooth and regular in appearance.
7. The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe according to claim 6, characterized in that: the cylinder temperature in the step 3) heating is 180-220 ℃.
8. The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe according to claim 6, characterized in that: and 5) cooling equipment in the shaping and cooling is a cooling water tank, and the temperature of water flow in the water tank is 20-30 degrees.
9. The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe according to claim 6, characterized in that: the raw materials in the mixed material in the step 1) comprise resin, color master batches and auxiliary agents, wherein the resin accounts for 80-93% of the total weight in percentage by mass, the color master batches account for 5-10% of the total weight in percentage by mass, and the auxiliary agents account for 2-10% of the total weight in percentage by mass.
10. The production process of the integrally formed plastic double-layer spiral rib hollow wall pipe according to claim 9, characterized in that: the resin is at least one of PP resin, PE resin and PVC resin; the color master batch is a short fiber color master batch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068750.8A CN111231258A (en) | 2020-01-21 | 2020-01-21 | Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068750.8A CN111231258A (en) | 2020-01-21 | 2020-01-21 | Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111231258A true CN111231258A (en) | 2020-06-05 |
Family
ID=70876368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068750.8A Pending CN111231258A (en) | 2020-01-21 | 2020-01-21 | Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111231258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805862A (en) * | 2020-07-21 | 2020-10-23 | 重庆安特管业有限公司 | PVC-U double-layer axial hollow wall pipe movable type integrated production line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403268A (en) * | 2002-10-04 | 2003-03-19 | 青岛绿华塑料机械有限公司 | Spiral hollow-wall pipe with two flat walls and its once extruding production line |
| CN201109178Y (en) * | 2007-09-03 | 2008-09-03 | 潍坊中云科研有限公司 | Double-wall strengthened plastic pipe shaper |
| CN101537657A (en) * | 2008-03-19 | 2009-09-23 | 日本碍子株式会社 | Clay extruder |
| WO2013137346A1 (en) * | 2012-03-16 | 2013-09-19 | 住友化学株式会社 | Extrusion-molding device and method for producing molded article using same |
| CN110094580A (en) * | 2019-03-14 | 2019-08-06 | 江西强发科技有限公司 | A kind of novel carat pipe and its preparation process |
-
2020
- 2020-01-21 CN CN202010068750.8A patent/CN111231258A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403268A (en) * | 2002-10-04 | 2003-03-19 | 青岛绿华塑料机械有限公司 | Spiral hollow-wall pipe with two flat walls and its once extruding production line |
| CN201109178Y (en) * | 2007-09-03 | 2008-09-03 | 潍坊中云科研有限公司 | Double-wall strengthened plastic pipe shaper |
| CN101537657A (en) * | 2008-03-19 | 2009-09-23 | 日本碍子株式会社 | Clay extruder |
| WO2013137346A1 (en) * | 2012-03-16 | 2013-09-19 | 住友化学株式会社 | Extrusion-molding device and method for producing molded article using same |
| CN110094580A (en) * | 2019-03-14 | 2019-08-06 | 江西强发科技有限公司 | A kind of novel carat pipe and its preparation process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805862A (en) * | 2020-07-21 | 2020-10-23 | 重庆安特管业有限公司 | PVC-U double-layer axial hollow wall pipe movable type integrated production line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101532591B (en) | UPVC pipe material/element and preparation method thereof | |
| CN111231258A (en) | Integrally-formed plastic double-layer spiral rib hollow wall pipe, forming die and production process thereof | |
| CN103144271A (en) | Exit molding device for plastic extruder | |
| CN202327529U (en) | Heat-insulation water supply pipeline and heat-insulation water supply pipeline system | |
| CN111231261A (en) | Integrally-formed carat pipe, forming die and production process thereof | |
| CN103615606B (en) | Large-diameter steel plastic reinforced composite pipe joint and reinforced composite pipe moulding process | |
| CN205048007U (en) | Continuous fibers side pipe strengthening rib heavy -calibre pipeline under pressure | |
| CN203157099U (en) | Device for forming outlet of plastics extruder | |
| CN204756188U (en) | Prestressed concrete PE steel sleeve pipe | |
| CN112140600A (en) | HDPE hollow wall winding pipe with two outlets in one direction and preparation method thereof | |
| CN103225718B (en) | Embedded prestressed steel cylinder concrete pipe having epoxy protective layer on inner wall | |
| CN216330219U (en) | System for producing foaming reinforcement winding pipe by two-step method | |
| CN210552985U (en) | Plastic pipe flaring die | |
| CN205155373U (en) | Cover and mould area reinforcing cavity wall winding pipe | |
| CN210061887U (en) | MPP tubular product sizing sleeve | |
| CN203927127U (en) | A kind of low density lightweight UPVC tubing | |
| CN207554995U (en) | Feedwater bimetallic tube | |
| CN212564770U (en) | PVC-U single vertical pipe and rotational flow four-way pipeline | |
| CN217752679U (en) | Plastic pipe cladding brightening die | |
| CN102506244A (en) | Electrically melted socket-type fiber glass reinforced plastic drain pipe and manufacturing method thereof | |
| CN110218403A (en) | A kind of production technology of corrosion-resistant antistatic hollow spiral tube | |
| CN210827679U (en) | Water delivery pipeline of portable installation | |
| CN203686389U (en) | Large-diameter steel plastic reinforced composite pipe joint | |
| CN210926930U (en) | Metal pipe with insulating function | |
| CN100516388C (en) | Well wall pipe with special concavo-convex thread and producing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |