CN109278268A - A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing - Google Patents
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing Download PDFInfo
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- CN109278268A CN109278268A CN201811406733.XA CN201811406733A CN109278268A CN 109278268 A CN109278268 A CN 109278268A CN 201811406733 A CN201811406733 A CN 201811406733A CN 109278268 A CN109278268 A CN 109278268A
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- pvc
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- power cable
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Abstract
The invention discloses a kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps: step 1: mixing in high-speed mixer is added in material allocation；Step 2: extruder is added in raw material after mixing and squeezes out PVC-U blank tubing；Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state by vacuum heater；Step 4: by interior operation pipe to extruder punish stopper and expand cock body between input high pressure gas realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension；Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping；Step 6: cutting PVC-O tubing, examines, storage.The present invention increases the axial strength of tubing by biaxial stretch-formed orientation, while the i.e. circumferential intensity of the radial direction for also increasing tubing, saves raw material by the method for reducing wall thickness, reduces the cost of product, have good economic benefit and social benefit.
Description
Technical field
The present invention relates to plastic tube technical fields, more particularly to a kind of ground-buried high voltage power cable orientation PVC-O
Process for producing casing.
Background technique
PVC pipe is widely used in many fields of modern society.China's plastic conduit industry development is fast
Speed has become one of the production of world's plastic conduit and application big country.But there is also some disadvantages for PVC pipe: its resistance to height
Warm nature is bad, works and is easily deformed in hotter environment；Toughness and intensity are lower, and cracking resistance impact property is poor, for buried
The tubing that high voltage power cable uses is influenced by its use environment, and the service life substantially reduces.
Currently, many high molecular polymers make the regular arrangement of its molecule by being orientated processing, its property can be improved well
Energy.PVC-O, Chinese name biaxially orienting polyvinyl chloride are the newest evolutional forms of pvc pipe, pass through special orientation processing technology
The tubing of manufacture will carry out axial tension and radial drawing using the PVC-U tubing of extrusion method production, make the PVC in tubing
Long-chain molecule obtains high intensity, high tenacity, high-impact, antifatigue novel PVC tubing in biaxially regular arrangement, and performance is remote
Better than common PVC-U tubing.
Summary of the invention
The object of the invention is that providing a kind of ground-buried high voltage power cable orientation to solve the above-mentioned problems
PVC-O process for producing casing.
The present invention through the following technical solutions to achieve the above objectives:
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation takes 100-120 parts of material pvc resin, ABS20-50 parts, plasticized modifier of parts by weight
15-20 parts, 2-5 parts of Ca/Zn compound stabilizer, 1-3 parts of ACR processing aid, 0.5-2 parts of impact modifier, lubricant 0.5-1.5
In part addition high-speed mixer, it is sufficiently mixed；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state by vacuum heater；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
Preferably, high-speed mixer mixing is successively added 0.5-1 hours in raw material in the step 1.
Preferably, drawing pipe orientation temperature is material between glass transition temperature and melting temperature in the step 3
Under the conditions of the temperature of (generally near softening point), under the effect of external force, make molecule from disorderly arranged to ordered arrangement.
Preferably, divergence ratio radial in the step 4 is in 2:1, and axial draw ratio is 20% to 30%.
Compared with prior art, advantages of the present invention is as follows:
1, by biaxial stretch-formed orientation, the axial strength of tubing is increased, while the i.e. circumferential intensity of the radial direction for also increasing tubing；
2, raw material is saved by the method for reducing wall thickness, reduces the cost of product, there is good economic benefit and social benefit.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below, but the invention is not limited to these to implement
Example.
Embodiment 1
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation, take parts by weight 100 parts of material pvc resin, ABS30 parts, 15 parts of plasticized modifier,
It is mixed that high-speed mixer is successively added in 2 parts of Ca/Zn compound stabilizer, 2 parts of ACR processing aid, 1 part of impact modifier, 1 part of lubricant
It closes 1 hour；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state, i.e. tubing by vacuum heater
Under the conditions of stretching orientation temperature is temperature of the material between glass transition temperature and melting temperature (generally near softening point),
Under the action of external force, make molecule from disorderly arranged to ordered arrangement；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension, reach
To radial divergence ratio in 2:1, axial draw ratio is 20% to 30%；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
Embodiment 2
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation, take parts by weight 120 parts of material pvc resin, ABS50 parts, 20 parts of plasticized modifier,
High-speed mixer is successively added in 5 parts of Ca/Zn compound stabilizer, 2 parts of ACR processing aid, 1.5 parts of impact modifier, 1 part of lubricant
Mixing 1 hour；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state, i.e. tubing by vacuum heater
Under the conditions of stretching orientation temperature is temperature of the material between glass transition temperature and melting temperature (generally near softening point),
Under the action of external force, make molecule from disorderly arranged to ordered arrangement；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension, reach
To radial divergence ratio in 2:1, axial draw ratio is 20% to 30%；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
Embodiment 3
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation, take parts by weight 100 parts of material pvc resin, ABS20 parts, 15 parts of plasticized modifier,
High-speed mixer is successively added in 3 parts of Ca/Zn compound stabilizer, 1 part of ACR processing aid, 1 part of impact modifier, 0.8 part of lubricant
Mixing 1 hour；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state, i.e. tubing by vacuum heater
Under the conditions of stretching orientation temperature is temperature of the material between glass transition temperature and melting temperature (generally near softening point),
Under the action of external force, make molecule from disorderly arranged to ordered arrangement；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension, reach
To radial divergence ratio in 2:1, axial draw ratio is 20% to 30%；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
Embodiment 4
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation, take parts by weight 110 parts of material pvc resin, ABS30 parts, 15 parts of plasticized modifier,
High-speed mixer is successively added in 2 parts of Ca/Zn compound stabilizer, 2 parts of ACR processing aid, 2 parts of impact modifier, 0.6 part of lubricant
Mixing 1 hour；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state, i.e. tubing by vacuum heater
Under the conditions of stretching orientation temperature is temperature of the material between glass transition temperature and melting temperature (generally near softening point),
Under the action of external force, make molecule from disorderly arranged to ordered arrangement；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension, reach
To radial divergence ratio in 2:1, axial draw ratio is 20% to 30%；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
Embodiment 5
A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, comprising the following steps:
Step 1: material allocation, take parts by weight 115 parts of material pvc resin, ABS35 parts, 20 parts of plasticized modifier,
It is mixed that high-speed mixer is successively added in 3 parts of Ca/Zn compound stabilizer, 3 parts of ACR processing aid, 2 parts of impact modifier, 1 part of lubricant
It closes 1 hour；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state, i.e. tubing by vacuum heater
Under the conditions of stretching orientation temperature is temperature of the material between glass transition temperature and melting temperature (generally near softening point),
Under the action of external force, make molecule from disorderly arranged to ordered arrangement；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension, reach
To radial divergence ratio in 2:1, axial draw ratio is 20% to 30%；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
It should be noted that above embodiments are only to illustrate technical solution of the present invention rather than restriction technologies scheme, although
The invention is described in detail with reference to the preferred embodiments by applicant, those skilled in the art should understand that, those are right
The modification or equivalent replacement that technical solution of the present invention carries out, cannot be detached from the objective and range of the technical program, should all cover
In scope of the invention as claimed.
Claims (4)
1. a kind of ground-buried high voltage power cable orientation PVC-O process for producing casing, it is characterised in that: the following steps are included:
Step 1: material allocation takes 100-120 parts of material pvc resin, ABS20-50 parts, plasticized modifier of parts by weight
15-20 parts, 2-5 parts of Ca/Zn compound stabilizer, 1-3 parts of ACR processing aid, 0.5-2 parts of impact modifier, lubricant 0.5-1.5
In part addition high-speed mixer, it is sufficiently mixed；
Step 2: heating in extruder is added in raw material after mixing and squeezes out PVC-U blank tubing, by pulling equipment to PVC-U base
Expects pipe material carries out traction extraction；
Step 3: traction PVC-U blank tubing makes PVC-U tubing be in high resiliency state by vacuum heater；
Step 4: control at a temperature of, stopper to extruder is punished by interior operation pipe and expand between cock body input it is high
Body of calming the anger realize material base caliber to expansion, while by pulling equipment hauling speed difference realize material base pipe axial tension；
Step 5: the PVC-U tubing after stretching is drawn by sizing water tank cooling and shaping, then by pulling equipment；
Step 6: cutting PVC-O tubing after molding, examines, warehousing after passing.
2. a kind of ground-buried high voltage power cable according to claim 1 orientation PVC-O process for producing casing, feature
Be: high-speed mixer mixing is successively added 0.5-1 hours in raw material in the step 1.
3. a kind of ground-buried high voltage power cable according to claim 2 orientation PVC-O process for producing casing, feature
Be: drawing pipe orientation temperature is that material (is generally softening between glass transition temperature and melting temperature in the step 3
Point near) temperature under the conditions of, under the effect of external force, make molecule from disorderly arranged to ordered arrangement.
4. a kind of ground-buried high voltage power cable according to claim 3 orientation PVC-O process for producing casing, feature
Be: radial divergence ratio is in 2:1 in the step 4, and axial draw ratio is 20% to 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406733.XA CN109278268A (en) | 2018-11-23 | 2018-11-23 | A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406733.XA CN109278268A (en) | 2018-11-23 | 2018-11-23 | A kind of ground-buried high voltage power cable orientation PVC-O process for producing casing |
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| CN109278268A true CN109278268A (en) | 2019-01-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071125A (en) * | 2021-03-01 | 2021-07-06 | 江苏远通塑胶制品有限公司 | Preparation method of high-performance PVC-O pipe |
| CN113085154A (en) * | 2021-03-01 | 2021-07-09 | 江苏远通塑胶制品有限公司 | Improved production method of PVC-O pipe |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203994736U (en) * | 2014-08-28 | 2014-12-10 | 南阳森源塑胶有限公司 | Pvc pipe material modification on-line continuous production line |
-
2018
- 2018-11-23 CN CN201811406733.XA patent/CN109278268A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203994736U (en) * | 2014-08-28 | 2014-12-10 | 南阳森源塑胶有限公司 | Pvc pipe material modification on-line continuous production line |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071125A (en) * | 2021-03-01 | 2021-07-06 | 江苏远通塑胶制品有限公司 | Preparation method of high-performance PVC-O pipe |
| CN113085154A (en) * | 2021-03-01 | 2021-07-09 | 江苏远通塑胶制品有限公司 | Improved production method of PVC-O pipe |
| CN113071125B (en) * | 2021-03-01 | 2023-02-28 | 江苏远通塑胶制品有限公司 | Preparation method of high-performance PVC-O pipe |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
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