CN1124258A - Black polyvinyl cable material and producing technology - Google Patents
Black polyvinyl cable material and producing technology Download PDFInfo
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- CN1124258A CN1124258A CN 94118462 CN94118462A CN1124258A CN 1124258 A CN1124258 A CN 1124258A CN 94118462 CN94118462 CN 94118462 CN 94118462 A CN94118462 A CN 94118462A CN 1124258 A CN1124258 A CN 1124258A
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Abstract
The present invention relates to a kind of cable polythene material and the producing technology, the high quality cable material is obtained through scientific recipe and the continunity and automation of productive process are implemented by using said technology. Said cable material is calendered from polythene, modifier, carbon black, lubricant, and antiageing agent. The main process consists of sending the raw material in turn-over type pugging mullering machine, heating, pressurizing to pug and muller, forced feeding, pelletizing by extrusion, automatic changing net and submerged hot-cutting and pelletizing. Said material can be used in the sheath and insulating pieces of various cable. Said technology can produce all black mother grain and multikind of polythene cable material with carbon black content less then 40%.
Description
The present invention relates to a kind of poly-ethylene cable material and production technique thereof, particularly black polyvinyl cable material and production technique.
CABLE MATERIALS was many in the past makes with igelite, because vinyon output is big, purposes is wide, good mechanical and physical performance is arranged, domesticly begin to develop black polyvinyl cable material, be applied to cable production to the eighties initial stage in the seventies initial stage, so not scientific and reasonable unexpectedly because of the prescription and the component concentration of these CABLE MATERIALS, thereby unstable properties, quality is difficult for reaching related standards, does not satisfy service requirements.
At present, the production technique of black polyvinyl cable material has following three kinds:
1, banburying roll-in production technique program: slivering → natural air cooled → pelletizing → packing is extruded in raw and auxiliary material → metering → banburying → roll-in.
2, single screw rod production-line technique program: raw and auxiliary material → storage tank → metering → single screw rod is extruded, granulation underwater → pellet drying → packing.
There is following shortcoming in these production technique: 1, production process adopts and opens the refining formula, easily participates in impurity, and quality product is difficult to guarantee, and dust pollution is serious; 2, adopt the artificial draping of shutting down, labour intensity is big, and can't realize the automatization and the serialization of producing, and production efficiency is low; 3, from top to bottom discharge between operation, seepage is many, and is uneconomical, and plasticizing effect is poor; 4, the 1st kind of natural air cooled pelletizing of process using, speed of cooling is slow, easy sizing, granulating rate is low, and efficient is not high; 5, measure the material temperature by fuselage, accuracy is low, influences quality product.
The purpose of this invention is to provide a kind of new black polyvinyl cable material and production technique, contain the rationally definite of reason by scientific formula and each component, the phase performance perameter of making reaches newest standards, and increases; The production technique that the present invention proposes can overcome the shortcoming of original production process, improves product quality and production efficiency.
Technical scheme of the present invention is as follows:
Black polyvinyl cable material is formed with other auxiliary material is mixing by the polyethylene base-material, and its prescription (by weight) is:
Polyvinyl resin 100phr
Properties-correcting agent 30～50phr
Carbon black 3～5phr
Lubricant 1～15phr
Anti-aging agent 0.5～1phr
Wherein polyethylene is selected high density polyethylene or new LDPE (film grade) on demand respectively for use, and properties-correcting agent is selected for use by the parameter index that the CABLE MATERIALS of various uses need reach, super carbon black or channel black during carbon black can be used, and lubricant is also selected for use by different requirements with anti-aging agent.Can make the high and low density polyethylene sheath material of black and Insulation Material and high and low density polyethylene sheath material of the anti-environment of black and Insulation Material etc. according to this prescription, be used for the insulation and the sheath of electric wire, cable.
The black polyvinyl cable material production technique that the present invention proposes is undertaken by following steps in sequence: supplementary material preparation → automatic gauge → kneading → forced feed, extruding pelletization → automatic quick net exchanging → fervent under water granulation → pellet drying → finished product automatic gauge → packing.The prescription (by weight) of the black polyvinyl cable material that this production technique is produced is: polyvinyl resin 100phr, properties-correcting agent 30～50phr, carbon black 3～5phr, lubricant 1～15phr, anti-aging agent 0.5～1phr.Its kneading operation is used convertible milling machine; the kneading temperature is 110～125 ℃; 8～11 minutes kneading time; input vapor pressure 0.2～0.3MPa; milling machine working current 60～130A: forced feed, extruding pelletization use mixed milling type list screw extruder pelletizer; automatically quick net exchanging is realized by automatic quick net exchanging device, and earnestly water cycle refrigerative underwater pelletizer is used in granulation under water.
Can produce carbon black content in all black agglomerates below 40% and various CABLE MATERIALS according to this technology.
Compare with the black polyvinyl cable material of original formulation, the product that prescription obtains that the present invention proposes has following advantage: 1, quality product obviously improves, be on the leading domestic level, some index surpasses the product of more external industrially developed country: (1) carbon black dispersion degree improves, and the product physical and mechanical properties improves; (2) resisting environmental stress and cracking of the sheath material of anti-the environment was brought up to 96 hours by original 48 hours; (3) disruptive strength is brought up to 30kv by 25kv; The parameter comparison of two kinds of material sees Table 1 and table 2; 2, because scientific formulation is reasonable, constant product quality, the production technique that in addition adopts the present invention to propose by changing the CABLE MATERIALS that auxiliary material can be made into various different purposes, fully satisfies the demand of cable industry it.
Compare with existing production technique, the production technique that the present invention proposes has following advantage: 1, replaced Banbury mixer with convertible milling machine, change convertible discharge into by former discharge down, material is delivered directly to down road equipment, reduce dust pollution and fine material leakage, and can keep the material temperature, both improved Working environment, strengthen plasticizing effect, improved production efficiency again; 2, forced feed, extruding pelletization become closedly by opening the refining formula, have alleviated labour intensity, have realized the closure and the continuity of production process, have stopped external foreign material, have guaranteed the raising of quality product, have reduced raw material consumption; Installing pressure, temperature sensor directly show temperature of charge in the machine, have guaranteed thermometric accuracy, help the raising of quality product; 3, design and used the mixed milling type screw rod, impel material further to plastify, improved melting effect; 4, adopt automatic quick net exchanging device and earnestly granulation under water, need not shut down draping, guaranteed the continuity of producing; use the water cycle cooling granulation, the granulating rate height makes whole process of production realize automatization and serialization in addition; production efficiency significantly improves, and class's output has improved twice.
Embodiments of the invention 1, the prescription of black high density polyethylene(HDPE) sheath material is: high-density polyethylene resin 100kg, properties-correcting agent 30kg, carbon black 3.5kg, lubricant 1kg, anti-aging agent 0.5kg, the convertible milling machine of adding 55～75 liters after automatic gauge mixes, the steam of feeding 0.2～0.3MPa, kneading is 8～11 minutes under 110～125 ℃ temperature, to expect to force feeding Φ 150～Φ 200 mixed milling type list screw extruder pelletizers through upset, divide five temperature sections in the extruding pelletization, machine: 120 ℃ of feeding sections, 130 ℃ of mixing sections, 150 ℃ of extruding pelletization sections, 170 ℃ of flange sections, 200 ℃ of head sections, its rotating speed is 70～80 rev/mins, follow by automatic quick net exchanging device draping earnestly granulation under the water-cooled situation, finished product pellet drying, metering back packing; Finished entire production process.
Embodiment 2, and the prescription of black new LDPE (film grade) sheath material is: ldpe resin 100kg, and properties-correcting agent 50kg, carbon black 4.4kg, lubricant 1.5kg, anti-aging agent 1.0kg, its production technique is with embodiment 1.
Base-material polyethylene and various auxiliary material that CABLE MATERIALS of the present invention is used are domestic production, as factories such as Beijing evolution factory, grand celebration, Kingsoft, Lan Hua the polyvinyl resin supply are arranged all, and auxiliary material is also by the supply of domestic units concerned.
| The table 1 black high density polyethylene (HDPE) protective cover material national and foreign standards table of comparisons | |||||
| Sequence number | Index name | Unit | U.S. REAPE-200 appendix D | Britain B86234 | Our factory's product standard |
| 1 | Melt flow rate (MFR) | g/10min | 0.5 | ＜1.0 | ≤0.5 |
| 2 | Density | g/cm 3 | 0.950～0.978 | ≥0.940 | 0.950～0.978 |
| 3 | Hot strength | MPa | 19 | 12 | ≥19 |
| 4 | Elongation at break | ％ | 400 | 300 | 400 |
| 5 | Low-temperature impact brittle temperature-76 ℃ | F | 2/10 | 0/10 | |
| 6 | Resisting environmental stress and cracking | h | 24 | ≥96 | |
| 7 | Carbon black content | ％ | 2.6±0.25 | 2.5±0.5 | 2.6±0.25 |
| 8 | Dielectric constant 106HZ or 105HZ | 2.75 | ≤2.75 | ||
| The table 2 Black Environment-resistant Low-density Polyethylene protective cover material national and foreign standards table of comparisons | ||||||
| Sequence number | Index name | Unit | Germany DIN57207 | Britain BS6 234 | The YD322-84 of the Ministry of Posts and Telecommunications | Our factory's product standard |
| 1 | Melt flow rate (MFR) | g/10min | 0.4～0.6 | ＜1.0 | ＜0.65 | ≤0.5 |
| 2 | Density | g/cm 3 | ≤0.94 | ≤0.94 | 0.926-0.940 | 0.920～0.94 |
| 3 | Hot strength is not less than | MPa | 10 | 10 | 12.5 | 12.4 |
| 4 | Elongation at break is not less than | ％ | 300 | 300 | 500 | 500 |
| 5 | The low-temperature impact brittle temperature is not more than | ℃ | -76 | -76 | ||
| 6 | Resisting environmental stress and cracking F0 is not less than | h | 24 | 96 | ≥96 | |
| 7 | Carbon black content | ％ | 2.5±0.5 | 2.5±0.5 | 2.35～2.85 | 2.35～2.85 |
| 8 | Dielectric constant 106HZ or 106HZ is not more than | 2.75 | 2.75 | |||
Claims (5)
1, a kind of black polyvinyl cable material is formed with other auxiliary material is mixing by the base-material polyethylene, it is characterized in that this material by the formulation by weight of each component is:
Polyvinyl resin 100phr
Properties-correcting agent 30～50phr
Carbon black 3～5phr
Lubricant 1～1.5phr
Anti-aging agent 0.5～1phr
2, CABLE MATERIALS according to claim 1 is characterized in that the base-material polyvinyl resin is high-density polyethylene resin or ldpe resin.
3, CABLE MATERIALS according to claim 1, it is characterized in that carbon black be in super carbon black or channel black.
4; a kind of black polyvinyl cable material production technique; comprise the raw material metering; mixing; operations such as granulation; it is characterized in that this production carries out successively by following processing step: the kneading → forced feed of raw and auxiliary material preparation → automatic gauge; extruding pelletization → automatic quick net exchanging → fervent under water granulation → pellet drying → finished product automatic gauge → packing; the prescription of its supplementary material is: polyvinyl resin 100phr; properties-correcting agent 30～50phr; carbon black 3～5phr; lubricant 1～1.5phr; anti-aging agent 0.5～1phr; kneading is carried out in convertible milling machine; its working parameter is: 110～125 ℃ of kneading temperature; 8～11 minutes kneading time; input vapor pressure 0.2～0.3MPa; milling machine working current 60～130A; the forced feed extruding pelletization uses mixed milling type list screw extruder pelletizer, and quick net exchanging is realized by automatic quick net exchanging device automatically, and earnestly water cycle refrigerative underwater pelletizer is used in granulation under water.
5, production technique according to claim 4 is characterized in that five temperature sections of mixed milling type list screw extruder pelletizer are: 120 ℃ of feeding sections, 130 ℃ of mixing sections, 150 ℃ of extruding pelletization sections, 170 ℃ of flange sections, 200 ℃ of head sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118462 CN1124258A (en) | 1994-12-09 | 1994-12-09 | Black polyvinyl cable material and producing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118462 CN1124258A (en) | 1994-12-09 | 1994-12-09 | Black polyvinyl cable material and producing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1124258A true CN1124258A (en) | 1996-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94118462 Pending CN1124258A (en) | 1994-12-09 | 1994-12-09 | Black polyvinyl cable material and producing technology |
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| CN (1) | CN1124258A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062284C (en) * | 1996-09-28 | 2001-02-21 | 扬中市有机化工厂 | Preparation of silane cross-linking polyethylene as electric cable material |
| CN1074157C (en) * | 1996-11-25 | 2001-10-31 | 四川联合大学 | Special material for outer protective sleeve of communication cable and optical cable |
| CN1098761C (en) * | 1998-03-31 | 2003-01-15 | 四川联合大学 | Preparation of foamed insulating polyethylene material for coaxial cable |
| CN1306523C (en) * | 2004-12-03 | 2007-03-21 | 宋鸿文 | Method for production of 110KV class XLPE cable insulation material |
| CN103509220A (en) * | 2012-06-26 | 2014-01-15 | 深圳市联嘉祥科技股份有限公司 | Cold-resistant waterproof material and manufacturing method thereof |
| CN103509224A (en) * | 2013-09-06 | 2014-01-15 | 安徽华鸿电气股份有限公司 | Nano-modified halogen-free wear-resistant cable material |
| CN104403307A (en) * | 2014-12-15 | 2015-03-11 | 苏州宽温电子科技有限公司 | Conductive engineering plastic |
| CN109774001A (en) * | 2018-11-27 | 2019-05-21 | 江西势通钙业有限公司 | A kind of preparation method of high temperature hydrating apparatus and a kind of dedicated high filler loading capacity nanometer calcium carbonate master batch of transparent membrane |
-
1994
- 1994-12-09 CN CN 94118462 patent/CN1124258A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062284C (en) * | 1996-09-28 | 2001-02-21 | 扬中市有机化工厂 | Preparation of silane cross-linking polyethylene as electric cable material |
| CN1074157C (en) * | 1996-11-25 | 2001-10-31 | 四川联合大学 | Special material for outer protective sleeve of communication cable and optical cable |
| CN1098761C (en) * | 1998-03-31 | 2003-01-15 | 四川联合大学 | Preparation of foamed insulating polyethylene material for coaxial cable |
| CN1306523C (en) * | 2004-12-03 | 2007-03-21 | 宋鸿文 | Method for production of 110KV class XLPE cable insulation material |
| CN103509220A (en) * | 2012-06-26 | 2014-01-15 | 深圳市联嘉祥科技股份有限公司 | Cold-resistant waterproof material and manufacturing method thereof |
| CN103509220B (en) * | 2012-06-26 | 2016-05-25 | 深圳市联嘉祥科技股份有限公司 | Cold-resistant waterproof material manufacture method |
| CN103509224A (en) * | 2013-09-06 | 2014-01-15 | 安徽华鸿电气股份有限公司 | Nano-modified halogen-free wear-resistant cable material |
| CN103509224B (en) * | 2013-09-06 | 2015-09-30 | 安徽华鸿电气股份有限公司 | A kind of halogen-free wear resistant cable material of nano modification |
| CN104403307A (en) * | 2014-12-15 | 2015-03-11 | 苏州宽温电子科技有限公司 | Conductive engineering plastic |
| CN109774001A (en) * | 2018-11-27 | 2019-05-21 | 江西势通钙业有限公司 | A kind of preparation method of high temperature hydrating apparatus and a kind of dedicated high filler loading capacity nanometer calcium carbonate master batch of transparent membrane |
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