CN102969050B - High-temperature-resistant soft independent shield instrument cable for maritime oil and gas engineering and manufacturing method thereof - Google Patents
High-temperature-resistant soft independent shield instrument cable for maritime oil and gas engineering and manufacturing method thereof Download PDFInfo
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Abstract
The invention relates to a high-temperature-resistant soft independent shield instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are twisted to form twisted wire pairs, and each twisted wire pair is successively wrapped with a copper foil polyester composite tape shielding layer and a polyester tape at the periphery, and then the twisted wire pairs are stranded to form a cable core; and the cable core is successively provided with an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath at periphery. The insulation layer is prepared from the following raw material components: 12 parts of ethylene/vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076; 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.
Description
Technical field
The present invention relates to a kind of instrument cable, particularly a kind of offshore oil and gas engineering heat-resisting soft individual screen instrument cable.The invention still further relates to a kind of manufacture method of offshore oil and gas engineering heat-resisting soft individual screen instrument cable.
Background technology
Along with the exploitation of the offshore oil and gas energy; oil gas engineering cable gets more and more; performance requirement is more and more higher; especially need to be reduced to greatest extent as the insulation of cable weight main composition part and metal armouring, simultaneously demand fulfillment to the mechanical protection of cable, cable possess adapt to the many moisture of oil gas engineering-environment corrode infiltration and cable can the requirement in useful life of safe operation about 25 years.Almost all adopt without inner sleeve cable to alleviate cable weight or adopt zinc-coated wire braiding as armouring, cross-linking radiation polyolefin for insulating and sheath in prior art, but nonetheless with regard to the supporting angle of integrated engineering, the weight that cable alleviates also is no more than 10%.Prior art adopts cross-linking radiation polyolefin as insulation, and its thermal endurance class is up to 150 DEG C, far can not meet the demand that sheath is crosslinked, and the performance that prevents water penetration of irradiation crosslinked polyolefin insulating and sheath is very poor, cannot meet the Long Term Contact with moisture.
Publication number is that the Chinese patent of CN 201758046 U discloses a kind of crosslinked control cables, it adopts crosslinked polyetylene insulated, internal shield, insulating barrier and outer shielding layer is set gradually outside conductor, set gradually lapping layer and oversheath three phase isolated core is external, space between three phase isolated core and lapping layer is provided with filler, insulated wire cores is also provided with copper strip shielding layer, and this copper strip shielding layer is wrapped on outer shielding layer surface.This patent have employed crosslinked polyetylene insulated, although structure is simple, with low cost, the requirement that it can not meet high temperature resistant, the large ampacity of offshore oil and gas engineering cable, many moisture corrodes.
Publication number is that the Chinese invention patent of CN101565527A discloses a kind of 125 DEG C irradiated crosslinking, although it meets the high temperature heat-resistant ageing properties requirement of 125 DEG C, but it only can be used for cable cover(ing), insulation property are poor, are not suitable as insulating material.
Publication number is that the Chinese invention patent of CN102617923A discloses a kind of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefin insulation material, its heat-proof aging is only 135 DEG C, according to correlation standard, this material only can bear long-term maximum operating temperature 90 DEG C, cannot meet offshore oil and gas engineering cable high-temperature operation environmental requirement.
Summary of the invention
Primary and foremost purpose of the present invention is, overcomes problems of the prior art, and provide a kind of offshore oil and gas engineering heat-resisting soft individual screen instrument cable, its insulating barrier is high temperature resistant, ageing-resistant performance is excellent, long service life.
For realizing above object, a kind of offshore oil and gas engineering heat-resisting soft individual screen instrument cable provided by the present invention, the zinc-plated annealing twisted copper conductors periphery of 0.35 ~ 2.5mm2 is extruded with chemical crosslinking polyolefin insulation layer and forms insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each described twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organize the right periphery of described twisted pair wire and be surrounded with Copper Foil polyester composite band screen and copper-clad surface is inside, the inner side of described Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread, and described zinc-plated stranded copper wire drainage thread runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Each described Copper Foil polyester composite band screen periphery is surrounded with polyester belt and forms pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, the periphery of described cable core is extruded with inner sheath, the periphery of described inner sheath is coated with copper alloy silk braiding armour, the periphery of described copper alloy silk braiding armour is surrounded with waterproof band, and the periphery of described waterproof band is extruded with oversheath.
Relative to prior art, the present invention achieves following beneficial effect: this cable is extruded with chemical crosslinking polyolefin insulation layer outside zinc-plated annealing twisted copper conductors, high temperature resistant, ageing-resistant performance is excellent, long service life; Copper alloy silk braiding armour both every magnetic, can avoid the loss that eddy current magnetic hysteresis causes, and increased ampacity, mechanical strength is larger than copper again, cost is then cheap than copper, and has excellent anti-seawater corrosion performance, and the long-term security for cable runs and benefits.
As preferred version of the present invention, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, and raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 ~ 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 ~ 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 ~ 0.4 part; Lubricant stearic acid: 0.2 ~ 1 part; Fire retardant aluminium hydroxide: 25 ~ 30 parts; Fire retardant red phosphorus: 0.6 ~ 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 ~ 0.1 part.Chemical crosslinking polyolefin insulation layer of the present invention adopts aluminium hydroxide and hydrated alumina as fire retardant, it contains 3 hydrones, start to decompose at 250 DEG C, discharge hydrone and absorb heat and reduce environment temperature, the steam discharged serves again the effect of combustable gas concentration in dilution gas phase, and the carbide of the alundum (Al2O3) of generation and the polymer surfaces of burning combines, and forms diaphragm, cut off the intrusion of heat energy and oxygen, serve fire retardation; Aluminium hydroxide has low cigarette and reduces the effect of carbon monoxide generation, environment-protecting clean simultaneously.Produce drippage when fire retardant red phosphorus can prevent polymer combustion, with the charring layer that can form skeleton character when polymer combustion on its surface, avoid polymer melting to drip with aluminium hydroxide.Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester is also known as antioxidant 1076, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD) is also known as antioxidant DNP, antioxidant 1076 and antioxidant DNP odorless, tasteless, nontoxic, volatility is little, good thermal stability, have excellent anti-aging and nondiscolouring, has good compatibility with ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer.The heat resistance of crosslinking agent cumyl peroxide is good, and cross-linking curve is steady, and the heat resistance for polymer has excellent guarantee.High density polyethylene (HDPE) has good thermal endurance, chemical resistance and dielectric property, and it is intact compatible with ethylene-methacrylic acid copolymer with ethylene/vinyl acetate copolymer, and the acrylic acid groups containing polarity in ethylene-methacrylic acid copolymer, greatly can improve the intramolecular bond cohesion of insulating material, reduce the reactivity of eater, play acidproof, alkaline-resisting, that high temperature heat-resistant is aging object.Lubricant stearic acid can improve the process industrial art performance of Insulation Material, improve processing speed, the quality of Insulation Material can be improved simultaneously, prevent Insulation Material from adding the adhesion on man-hour and equipment or other contact material surfaces, Insulation Material in the course of processing is had good in roller and release property, ensure Insulation Material any surface finish, reduce kinematic viscosity when Insulation Material internal friction and melting, prevent from causing because of internal friction Insulation Material to cross thermal impact serviceability; Simultaneously because its purity is higher, for the insulation property improving Insulation Material, there is facilitation.-5-chlorinated benzotriazole is also known as ultraviolet absorbent uv-326 for ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl), and have volatility little, heat-resisting advantage, the high-temperature resistant grade for Insulation Material has positive role.Its maximum amount of electro-insulating rubber of the present invention is determined working temperature and has been brought up to 125 DEG C from 90 DEG C of prior art, the rated current-carrying capacity of same specification conductor is made to improve about 50%, namely when transmitting same electric current, required cross-sectional area of conductor is long-pending can reduce about 50%, adapt to the many high-temperature gases of oil gas engineering affect the degradation with aging of insulating polymer, extend useful life, from with oil gas engineering design life-span matching degree, eliminate the replacing of oil gas engineer operation life-span midway to cable, save manpower, material resources and financial resources cost, meet the requirements of the times of the energy-saving and emission-reduction consumption reduction advocated at present.
As preferred version of the present invention, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 part; Lubricant stearic acid: 0.2 part; Fire retardant aluminium hydroxide: 25 parts; Fire retardant red phosphorus: 0.6 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 part.
As preferred version of the present invention, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.8 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.7 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.3 part; Lubricant stearic acid: 0.6 part; Fire retardant aluminium hydroxide: 28 parts; Fire retardant red phosphorus: 0.8 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.08 part.
As preferred version of the present invention, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.4 part; Lubricant stearic acid: 1 part; Fire retardant aluminium hydroxide: 30 parts; Fire retardant red phosphorus: 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.1 part.
As preferred version of the present invention, raw material components and the weight content of described copper alloy silk braiding armour are as follows, copper: iron: plumbous: zinc=(89.0 ~ 91.0): (0.03 ~ 0.05): (0.01 ~ 0.05): 10.This copper alloy silk braiding armour both every magnetic, can avoid the loss that eddy current magnetic hysteresis causes, and increased ampacity, mechanical strength is larger than copper again, cost is then cheap than copper, and has excellent anti-seawater corrosion performance, and the long-term security for cable runs and benefits.
Another object of the present invention is, provide a kind of manufacture method of offshore oil and gas engineering heat-resisting soft individual screen instrument cable, its insulating barrier of the cable insulation of the method manufacture is high temperature resistant, ageing-resistant performance is excellent, long service life.
For realizing above object, the manufacture method of offshore oil and gas engineering heat-resisting soft individual screen instrument cable provided by the present invention, comprise the following steps successively: extrude chemical crosslinking polyolefin insulation layer in the zinc-plated annealing twisted copper conductors periphery of 0.35 ~ 2.5mm2 and form insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each described twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organizing the right periphery of described twisted pair wire wrapped Copper Foil polyester composite band screen and copper-clad surface is inside, the inner side of described Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread, and described zinc-plated stranded copper wire drainage thread runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Then in each described Copper Foil polyester composite band screen periphery, wrapped polyester belt forms pair twist group; By all pair twist groups with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, inner sheath is extruded in the periphery of described cable core, at the periphery coated copper B alloy wire braiding armour of described inner sheath, at the wrapped waterproof band in periphery of described copper alloy silk braiding armour, extrude oversheath in the periphery of described waterproof band; The preparation method of wherein said chemical crosslinking polyolefin insulation layer is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 ~ 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 ~ 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 ~ 0.4 part; Lubricant stearic acid: 0.2 ~ 1 part; Fire retardant aluminium hydroxide: 25 ~ 30 parts; Fire retardant red phosphorus: 0.6 ~ 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 ~ 0.1 part; (2) first banbury temperature is risen to 130 DEG C ~ 150 DEG C, add above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer successively, and plastify evenly mixing, then antioxidant β-(3 are added, 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; Mixing roll temperature is risen to 60 DEG C ~ 70 DEG C, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide is evenly mixing, then glue stuff compounding is moved on three-roller open mill and beat triangle Bao Bingjing thin-pass 4 ~ 6 times, roller temperature control is at 60 DEG C ± 5 DEG C, front roll temperature is higher than rear roll temperature 3 ~ 5 DEG C, cutting after thin-pass completes, cool for subsequent use.
Relative to prior art, the present invention achieves following beneficial effect: the cable of the method manufacture, its chemical crosslinking polyolefin insulation layer adopts aluminium hydroxide and hydrated alumina as fire retardant, it contains 3 hydrones, start to decompose at 250 DEG C, discharge hydrone and absorb heat and reduce environment temperature, the steam discharged serves again the effect of combustable gas concentration in dilution gas phase, the carbide of the alundum (Al2O3) generated and the polymer surfaces of burning combines, form diaphragm, cut off the intrusion of heat energy and oxygen, serve fire retardation; Aluminium hydroxide has low cigarette and reduces the effect of carbon monoxide generation, environment-protecting clean simultaneously.Produce drippage when fire retardant red phosphorus can prevent polymer combustion, with the charring layer that can form skeleton character when polymer combustion on its surface, avoid polymer melting to drip with aluminium hydroxide.Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester is also known as antioxidant 1076, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD) is also known as antioxidant DNP, antioxidant 1076 and antioxidant DNP odorless, tasteless, nontoxic, volatility is little, good thermal stability, have excellent anti-aging and nondiscolouring, has good compatibility with ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer.The heat resistance of crosslinking agent cumyl peroxide is good, and cross-linking curve is steady, and the heat resistance for polymer has excellent guarantee.High density polyethylene (HDPE) has good thermal endurance, chemical resistance and dielectric property, and it is intact compatible with ethylene-methacrylic acid copolymer with ethylene/vinyl acetate copolymer, and the acrylic acid groups containing polarity in ethylene-methacrylic acid copolymer, greatly can improve the intramolecular bond cohesion of insulating material, reduce the reactivity of eater, play acidproof, alkaline-resisting, that high temperature heat-resistant is aging object.Lubricant stearic acid can improve the process industrial art performance of Insulation Material, improve processing speed, the quality of Insulation Material can be improved simultaneously, prevent Insulation Material from adding the adhesion on man-hour and equipment or other contact material surfaces, Insulation Material in the course of processing is had good in roller and release property, ensure Insulation Material any surface finish, reduce kinematic viscosity when Insulation Material internal friction and melting, prevent from causing because of internal friction Insulation Material to cross thermal impact serviceability; Simultaneously because its purity is higher, for the insulation property improving Insulation Material, there is facilitation.-5-chlorinated benzotriazole is also known as ultraviolet absorbent uv-326 for ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl), and have volatility little, heat-resisting advantage, the high-temperature resistant grade for Insulation Material has positive role.Its maximum amount of electro-insulating rubber of the present invention is determined working temperature and has been brought up to 125 DEG C from 90 DEG C of prior art, the rated current-carrying capacity of same specification conductor is made to improve about 50%, namely when transmitting same electric current, required cross-sectional area of conductor is long-pending can reduce about 50%, adapt to the many high-temperature gases of oil gas engineering affect the degradation with aging of insulating polymer, extend useful life, from with oil gas engineering design life-span matching degree, eliminate the replacing of oil gas engineer operation life-span midway to cable, save manpower, material resources and financial resources cost, meet the requirements of the times of the energy-saving and emission-reduction consumption reduction advocated at present.
As preferred version of the present invention, raw material components and the weight content of described copper alloy silk braiding armour are as follows, copper: iron: plumbous: zinc=(89.0 ~ 91.0): (0.01 ~ 0.05): (0.01 ~ 0.05): 10.This copper alloy silk braiding armour both every magnetic, can avoid the loss that eddy current magnetic hysteresis causes, and increased ampacity, mechanical strength is larger than copper again, cost is then cheap than copper, and has excellent anti-seawater corrosion performance, and the long-term security for cable runs and benefits.
As preferred version of the present invention, described chemical crosslinking polyolefin insulation layer adopts cold feeding manner to extrude on twin-screw rubber extruding machine, the draw ratio of screw rod is (15 ~ 25): 1, the fuselage one district temperature of twin-screw rubber extruding machine is 110 DEG C ± 5 DEG C, fuselage two district temperature is 120 DEG C ± 5 DEG C, head temperature is 130 DEG C ± 5 DEG C, and mold temperature is 140 DEG C ± 5 DEG C, and rubber extruding machine cooled screw mode is water cooling.
As preferred version of the present invention, when described chemical crosslinking polyolefin insulation layer is extruded on twin-screw rubber extruding machine, the line length of holding of core rod is 1:(1 ~ 1.2 with the external diameter ratio extruded), the gap between core rod and die sleeve is 1 ~ 1.5mm; Described electro-insulating rubber enters cross-linking tube road after the head of described twin-screw rubber extruding machine is extruded, and the temperature of described crosslinked pipeline is 160 DEG C ~ 180 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural representation of offshore oil and gas engineering heat-resisting soft individual screen instrument cable of the present invention.
In figure: 1. zinc-plated annealing twisted copper conductors; 2. chemical crosslinking polyolefin insulation layer; 3. Copper Foil polyester composite band screen; The zinc-plated stranded copper wire drainage thread of 3a.; 4. polyester belt; 5. inner sheath; 6. copper alloy silk braiding armour; 7. waterproof band; 8. oversheath.
Embodiment
Embodiment one
As shown in Figure 1, offshore oil and gas engineering heat-resisting soft individual screen instrument cable of the present invention, manufacture according to the following steps: extrude chemical crosslinking polyolefin insulation layer 2 in zinc-plated annealing twisted copper conductors 1 periphery of 0.35mm2 and form insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organizing the right periphery of twisted pair wire wrapped Copper Foil polyester composite band screen 3 and copper-clad surface is inside, the inner side of Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread 3a, and zinc-plated stranded copper wire drainage thread 3a runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Then pair twist group is formed at the wrapped polyester belt 4 in each Copper Foil polyester composite band screen 3 periphery; By all pair twist groups with the stranded formation cable core of stranded lay ratio dextrad of 16 times, inner sheath 5 is extruded in the periphery of cable core, at the periphery coated copper B alloy wire braiding armour 6 of inner sheath 5, at the wrapped waterproof band 7 in periphery of copper alloy silk braiding armour 6, extrude oversheath 8 in the periphery of waterproof band 7.
Wherein, the copper thickness of Copper Foil polyester composite band screen is 0.018mm, and the thickness of the polyester of Copper Foil polyester composite band screen is 0.023mm, and the wrapped rate of putting up is 30%.To be that the copper wire of 0.43mm is stranded by 7 diameters form zinc-plated stranded copper wire drainage thread.The thickness of polyester belt is 0.05mm, and the wrapped rate of putting up is 20%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubber used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 part; Lubricant stearic acid: 0.2 part; Fire retardant aluminium hydroxide: 25 parts; Fire retardant red phosphorus: 0.6 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 part; (2) first banbury temperature is risen to 130 DEG C, add above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer successively, and plastify evenly mixing, then antioxidant β-(3 are added, 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; Mixing roll temperature is risen to 60 DEG C, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide is evenly mixing, then glue stuff compounding is moved on three-roller open mill and beat triangle Bao Bingjing thin-pass 4 times, roller temperature control is at 55 DEG C, front roll temperature is higher than rear roll temperature 3 DEG C, cutting after thin-pass completes, cool for subsequent use; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on twin-screw rubber extruding machine, the draw ratio of screw rod is 15:1, the fuselage one district temperature of twin-screw rubber extruding machine is 105 DEG C, fuselage two district temperature is 115 DEG C, head temperature is 125 DEG C, mold temperature is 135 DEG C, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 is extruded, the line length of holding of core rod is 1:1 with the external diameter ratio extruded, and the gap between core rod and die sleeve is 1mm; Electro-insulating rubber enters cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 160 DEG C.
Zinc-plated annealing twisted copper conductors 1 adopts the stranded copper wire of the zinc-plated annealing of the 2nd class in IEC 60228 standard, and zinc-plated employing plating mode substitutes traditional hot tinning mode, avoids conductor zinc-plated uneven and tin thickness is uneven; Easily there is the drawback of list edge attachment conductive surface, after avoiding conductor indium phenomenon to occur; There is chemical reaction with insulation in copper, reduces the risk of insulating barrier electric property and physical and mechanical properties.
Raw material components and the weight content of copper alloy silk braiding armour 6 are as follows, copper: iron: plumbous: zinc=89.0:0.03:0.01:10.The diameter of armouring braided wires is 0.31 mm, and tensile strength is 260MPa, and elongation at break is not less than 25%.
Embodiment two
Offshore oil and gas engineering heat-resisting soft individual screen instrument cable of the present invention, manufacture according to the following steps: extrude chemical crosslinking polyolefin insulation layer 2 in zinc-plated annealing twisted copper conductors 1 periphery of 1.25mm2 and form insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organizing the right periphery of twisted pair wire wrapped Copper Foil polyester composite band screen 3 and copper-clad surface is inside, the inner side of Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread 3a, and zinc-plated stranded copper wire drainage thread 3a runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Then pair twist group is formed at the wrapped polyester belt 4 in each Copper Foil polyester composite band screen 3 periphery; By all pair twist groups with the stranded formation cable core of stranded lay ratio dextrad of 20 times, inner sheath 5 is extruded in the periphery of cable core, at the periphery coated copper B alloy wire braiding armour 6 of inner sheath 5, at the wrapped waterproof band 7 in periphery of copper alloy silk braiding armour 6, extrude oversheath 8 in the periphery of waterproof band 7.
Wherein, the copper thickness of Copper Foil polyester composite band screen is 0.020mm, and the thickness of the polyester of Copper Foil polyester composite band screen is 0.030mm, and the wrapped rate of putting up is 35%.To be that the copper wire of 0.43mm is stranded by 7 diameters form zinc-plated stranded copper wire drainage thread.The thickness of polyester belt is 0.06mm, and the wrapped rate of putting up is 22%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubber used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.8 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.7 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.3 part; Lubricant stearic acid: 0.6 part; Fire retardant aluminium hydroxide: 28 parts; Fire retardant red phosphorus: 0.8 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.08 part; (2) first banbury temperature is risen to 140 DEG C, add above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer successively, and plastify evenly mixing, then antioxidant β-(3 are added, 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; Mixing roll temperature is risen to 65 DEG C, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide is evenly mixing, then glue stuff compounding is moved on three-roller open mill and beat triangle Bao Bingjing thin-pass 5 times, roller temperature control is at 60 DEG C, front roll temperature is higher than rear roll temperature 4 DEG C, cutting after thin-pass completes, cool for subsequent use; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on twin-screw rubber extruding machine, the draw ratio of screw rod is 20:1, the fuselage one district temperature of twin-screw rubber extruding machine is 110 DEG C, fuselage two district temperature is 120 DEG C, head temperature is 130 DEG C, mold temperature is 140 DEG C, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 is extruded, the line length of holding of core rod is 1:1.1 with the external diameter ratio extruded, and the gap between core rod and die sleeve is 1.2mm; Electro-insulating rubber enters cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 170 DEG C.
Zinc-plated annealing twisted copper conductors 1 adopts the stranded copper wire of the zinc-plated annealing of the 2nd class in IEC 60228 standard, and zinc-plated employing plating mode substitutes traditional hot tinning mode.
Raw material components and the weight content of copper alloy silk braiding armour 6 are as follows, copper: iron: plumbous: zinc=90:0.04:0.03:10.The diameter of armouring braided wires is 0.32mm, and tensile strength is 300MPa, and elongation at break is not less than 25%.
Embodiment three
Offshore oil and gas engineering heat-resisting soft individual screen instrument cable of the present invention, manufacture according to the following steps: extrude chemical crosslinking polyolefin insulation layer 2 in zinc-plated annealing twisted copper conductors 1 periphery of 2.5mm2 and form insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organizing the right periphery of twisted pair wire wrapped Copper Foil polyester composite band screen 3 and copper-clad surface is inside, the inner side of Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread 3a, and zinc-plated stranded copper wire drainage thread 3a runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Then pair twist group is formed at the wrapped polyester belt 4 in each Copper Foil polyester composite band screen 3 periphery; By all pair twist groups with the stranded formation cable core of stranded lay ratio dextrad of 24 times, inner sheath 5 is extruded in the periphery of cable core, at the periphery coated copper B alloy wire braiding armour 6 of inner sheath 5, at the wrapped waterproof band 7 in periphery of copper alloy silk braiding armour 6, extrude oversheath 8 in the periphery of waterproof band 7.
Wherein, the copper thickness of Copper Foil polyester composite band screen is 0.025mm, and the thickness of the polyester of Copper Foil polyester composite band screen is 0.023mm, and the wrapped rate of putting up is 40%.To be that the copper wire of 0.43mm is stranded by 7 diameters form zinc-plated stranded copper wire drainage thread.The thickness of polyester belt is 0.07mm, and the wrapped rate of putting up is 25%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubber used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.4 part; Lubricant stearic acid: 1 part; Fire retardant aluminium hydroxide: 30 parts; Fire retardant red phosphorus: 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.1 part; (2) first banbury temperature is risen to 150 DEG C, add above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer successively, and plastify evenly mixing, then antioxidant β-(3 are added, 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; Mixing roll temperature is risen to 70 DEG C, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide is evenly mixing, then glue stuff compounding is moved on three-roller open mill and beat triangle Bao Bingjing thin-pass 6 times, roller temperature control is at 65 DEG C, front roll temperature is higher than rear roll temperature 5 DEG C, cutting after thin-pass completes, cool for subsequent use; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on twin-screw rubber extruding machine, the draw ratio of screw rod is 25:1, the fuselage one district temperature of twin-screw rubber extruding machine is 115 DEG C, fuselage two district temperature is 125 DEG C, head temperature is 135 DEG C, mold temperature is 145 DEG C, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 is extruded, the line length of holding of core rod is 1:1.2 with the external diameter ratio extruded, and the gap between core rod and die sleeve is 1.5mm; Electro-insulating rubber enters cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 180 DEG C.
Zinc-plated annealing twisted copper conductors 1 adopts the stranded copper wire of the zinc-plated annealing of the 2nd class in IEC 60228 standard, and zinc-plated employing plating mode substitutes traditional hot tinning mode.
Raw material components and the weight content of copper alloy silk braiding armour 6 are as follows, copper: iron: plumbous: zinc=91.0:0.05:0.05:10.The diameter of armouring braided wires is 0.33 mm, and tensile strength is 345MPa, and elongation at break is not less than 25%.
In embodiment one to embodiment three, the physical and mechanical properties of armouring braided wires is as follows: 1) toughness: be that one end of the sample of 50 ~ 70mm clips the level at brave bench vice and between parallel rounding opposite side, vertically stretches on brave bench vice by length.Be connected to by spring scale on another free end of sample, grasping the tension force that spring scale makes to put on sample is 1.0 ± 0.1 Ns.Under the condition keeping this tension force, make sample alternately to the brave bench vice limit 90-degree bent of both direction perpendicular to rounding, bending speed is 45 ~ 50 beats/min, and sample carries out that 90 ° bending and number of times that is that do not fracture is not less than 10 times.2) elasticity: at diameter be 6.4mm steel cylinder coupon on, be that one end of the braided wires sample of 254mm is fixed on coupon by length, it is made to contact with the curved surface of coupon and become plumbness with coupon axis, the other end of sample is hung on spring scale, make sample around 4 circles on coupon with hand spring scale, maintenance sample tension force is 1.1 ± 0.1 Ns.Finally come from Panasonic spring scale by sample, and allow it be in circle around state, at middle part, measurement is not more than 9.5mm to the coil outer diameter that coupon is formed.
Insulation resistance (when 15.6 DEG C) test result carried out to the insulating barrier of embodiment one to embodiment three as shown in table 1.
Table 1
| Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three | |
| Insulation resistance (15.6 DEG C) | MΩ·km | ≥3050 | 3870 | 4620 | 4080 |
Carry out acceleration water absorption test to the insulating barrier in embodiment one to embodiment three, test dielectric constant and ac capacitor increment rate under water immersion 75 DEG C, result is as table 2.The numerical value recorded in table be respectively the 14th day with the difference of the 1st day, the 7th day.
Table 2
| Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three | |
| Dielectric constant | 6.0 | 3.4 | 2.8 | 3.1 | |
| Electric capacity increment rate 14-1(d) | % | ≤3.0 | 0.4 | 0.5 | 0.6 |
| Electric capacity increment rate 14-7(d) | % | ≤1.5 | 0.1 | 0.1 | 0.2 |
| The electric capacity coefficient of stability after 14 days | % | ≤0.5 | 0.1 | 0.1 | 0.2 |
Aging front measuring mechanical property result is carried out as table 3 to the insulating barrier of embodiment one to embodiment three:
Table 3
| Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three | |
| Tensile strength | N/mm2 | ≥12.5 | 14.5 | 15.6 | 17.1 |
| Elongation at break | % | ≥250 | 310 | 380 | 295 |
To the insulating barrier of embodiment one to embodiment three carry out watertight aircase aging after measuring mechanical property, test result as table 4, aging condition: temperature 160 ± 1 DEG C, time: 168h.
Table 4
The test result of heat distortion test is carried out as table 5 to the insulating barrier in embodiment one to embodiment three, experimental condition: treatment temperature 150 DEG C.
Table 5
Ozone resistance test is carried out to the finished cable of embodiment one to embodiment three, result of the test as table 6, experimental condition: temperature 90 ± 2 DEG C, time 24h, ozone concentration 0.030%.
Table 6
| Standard-required | Embodiment one | Embodiment two | Embodiment three | |
| Ozone resistance test | Surface is without cracking | Without cracking | Without cracking | Without cracking |
VW-1 burn test results is carried out as table 7 to the insulating barrier in embodiment one to embodiment three.
Table 7
Hot elongation test is carried out to the insulating barrier heat in embodiment one to embodiment three, result as table 8, experimental condition: treatment temperature 175 ± 1 DEG C, duration 15 min, mechanical stress 20 N/cm2.
Table 8
Ultraviolet-resistant aging result of the test is carried out as table 9 to the insulated wire cores of embodiment one to embodiment three, experimental condition: employing 6kW hernia lamp carries out irradiating and is equipped with the hydraulic pressure water spray of 0.12 ~ 0.15MPa, according to 120 minutes for one-period carries out cycle Ultraviolet radiation, wherein water spray, illumination simultaneously in 18 minutes, independent illumination in another 102 minutes, exposure irradiation 1000 hours altogether, then sample is placed in room temperature environment lower 20 hours, observe sample outward appearance, outward appearance should without be full of cracks, and carrying out tensile strength and elongation at tear tests, the retention rate of the two all should be not less than 75%.
Table 9
The erosion test of anti-seawater moisture is carried out to the finished cable of embodiment one to embodiment three, result of the test as table 10, experimental condition: three long finished cable samples for 1.1m to be placed in temperature be saliferous (NaCl) mass concentration of 60 ± 1 DEG C be 20% solution soak 10 days.Cable adopts U-shaped bending when soaking, sample two ends respectively have 30cm to surface; Soak and terminate the withstand voltage test of rear cable by AC3.5kV/5min; By cable winding at diameter be 9 times of sample of cable external diameters circular shaft on, insulating surface range estimation visible crack.
Table 10
Low temperature bend test is carried out to the finished cable of embodiment one to embodiment three, result of the test is as table 11, experimental condition: after 4h is placed in finished cable – 40 DEG C of test chambers, keep this temperature by sample at diameter be the outside diameter of cable of 12 times circular shaft on be wound around 3 circle, then original position is withdrawn into, then 3 circles are wound around round about again, more stretching.This program proceeds 9 times, makes total degree reach 10 times.Estimate visible crack after end, and carry out the withstand voltage test of AC3.5kV/5min.
Table 11
Low-temperature impact test is carried out to the finished cable of embodiment one to embodiment three, result of the test is as table 12, experimental condition: be that the tested sample of cable of 0.13m is placed in-35 DEG C of test chambers and places 4h by length, then being placed in successively by sample is of a size of in the wooden plate of 50mm*100mm, the impulse member that heavy 1.36kg has steel toe is freely fallen from the height that test coupon height is 915mm, the diameter of steel toe is 28.5mm, there is the shock surface in fillet that diameter is 25mm, when falling, the top of steel toe shock surface impact specimen vertically downward, observe the insulating barrier of sample with or without cracking.
Table 12
The test of oil resistant ageing properties is carried out to the finished cable of embodiment one to embodiment three, result of the test as table 13, experimental condition: three long finished cable samples for 1.1m being placed in temperature is that the IRM902 deep fat of 100 ± 1 DEG C soaks 4 days.Cable adopts U-shaped bending when soaking, sample two ends respectively have 30cm to expose pasta.Soak and terminate rear withstand voltage test cable being carried out to AC3.5kV/5min; By cable winding at diameter be 9 times of sample of cable external diameters circular shaft on, range estimation visible crack and insulation whether peel off from conductor.
Table 13
Ethylene/vinyl acetate copolymer, referred to as EVA, can select the product of Nanjing zero degree plastic material Co., Ltd or Shanghai Yi Yuan Chemical Co., Ltd..
High density polyethylene (HDPE), referred to as HDPE, adopts the product meeting " GB1116-1989 high-density polyethylene resin " standard.
Ethylene-methacrylic acid copolymer can select Shanghai Qia Pu Chemical Co., Ltd. or Hangzhou Guan Jia to plastify the product of Co., Ltd.
Crosslinking agent cumyl peroxide, also known as crosslink agent DCP, can select Yantai Heng Nuo Chemical Industry Science Co., Ltd or Shanghai Fang Rui to reach Chemical Company's product.
Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester is also known as antioxidant 1076, and English name antioxidant 1076, can select the product of Yixing City angel synthetic chemistry company or Qingdao Hai Hua fire proofing Co., Ltd.
Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), also known as antioxidant DNP, can select the product of West Beijing Er Pu Science and Technology Ltd. or Guangzhou Geng Da trade Co., Ltd.
Lubricant stearic acid also known as lubricant SA, formal name used at school: octadecanoid acid, molecular formula CH3(CH2) 16COOH, perform the standard in " GB/T 9103-1988 industry stearic acid ".
Fire retardant aluminium hydroxide is also called hydrated alumina, can select the product of Jinan Taixing Fine Chemicals Co., ltd.
Fire retardant red phosphorus quality standard performs with reference to " GB 4947-2003 ", can select the product of rich and powerful fire retardant Co., Ltd of Rugao City.
Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, also known as ultraviolet absorbent uv-326, can select the product of Shanghai Yanrun Ray Machine Technology Co., Ltd. or Qingdao Hua En Chemical Co., Ltd..
The present invention is raw materials used, except above producer, all can select other satisfactory like product on market.
The foregoing is only the better possible embodiments of the present invention, non-ly therefore limit to scope of patent protection of the present invention.In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of application claims.
Claims (9)
1. an offshore oil and gas engineering heat-resisting soft individual screen instrument cable, it is characterized in that: the zinc-plated annealing twisted copper conductors periphery of 0.35 ~ 2.5mm2 is extruded with chemical crosslinking polyolefin insulation layer and forms insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each described twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organize the right periphery of described twisted pair wire and be surrounded with Copper Foil polyester composite band screen and copper-clad surface is inside, the inner side of described Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread, and described zinc-plated stranded copper wire drainage thread runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Each described Copper Foil polyester composite band screen periphery is surrounded with polyester belt and forms pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, the periphery of described cable core is extruded with inner sheath, the periphery of described inner sheath is coated with copper alloy silk braiding armour, the periphery of described copper alloy silk braiding armour is surrounded with waterproof band, and the periphery of described waterproof band is extruded with oversheath; Raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 ~ 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 ~ 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 ~ 0.4 part; Lubricant stearic acid: 0.2 ~ 1 part; Fire retardant aluminium hydroxide: 25 ~ 30 parts; Fire retardant red phosphorus: 0.6 ~ 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 ~ 0.1 part.
2. offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 1, it is characterized in that, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 part; Lubricant stearic acid: 0.2 part; Fire retardant aluminium hydroxide: 25 parts; Fire retardant red phosphorus: 0.6 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 part.
3. offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 1, it is characterized in that, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.8 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.7 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.3 part; Lubricant stearic acid: 0.6 part; Fire retardant aluminium hydroxide: 28 parts; Fire retardant red phosphorus: 0.8 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.08 part.
4. offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 1, it is characterized in that, raw material components and the weight content of described chemical crosslinking polyolefin insulation layer are as follows, ethylene/vinyl acetate copolymer: 12 parts; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.4 part; Lubricant stearic acid: 1 part; Fire retardant aluminium hydroxide: 30 parts; Fire retardant red phosphorus: 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.1 part.
5. offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 1, it is characterized in that, raw material components and the weight content of described copper alloy silk braiding armour are as follows, copper: iron: plumbous: zinc=(89.0 ~ 91.0): (0.03 ~ 0.05): (0.01 ~ 0.05): 10.
6. the offshore oil and gas engineering manufacture method of heat-resisting soft individual screen instrument cable, it is characterized in that, comprise the following steps successively: extrude chemical crosslinking polyolefin insulation layer in the zinc-plated annealing twisted copper conductors periphery of 0.35 ~ 2.5mm2 and form insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair between two, the right twisting pitch of each described twisted pair wire be not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Often organizing the right periphery of described twisted pair wire wrapped Copper Foil polyester composite band screen and copper-clad surface is inside, the inner side of described Copper Foil polyester composite band screen is provided with zinc-plated stranded copper wire drainage thread, and described zinc-plated stranded copper wire drainage thread runs through together with twisted pair wire abuts against to overall length and with copper-clad surface; Then in each described Copper Foil polyester composite band screen periphery, wrapped polyester belt forms pair twist group; By all pair twist groups with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, inner sheath is extruded in the periphery of described cable core, at the periphery coated copper B alloy wire braiding armour of described inner sheath, at the wrapped waterproof band in periphery of described copper alloy silk braiding armour, extrude oversheath in the periphery of described waterproof band; The preparation method of wherein said chemical crosslinking polyolefin insulation layer is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 ~ 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 ~ 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 ~ 0.4 part; Lubricant stearic acid: 0.2 ~ 1 part; Fire retardant aluminium hydroxide: 25 ~ 30 parts; Fire retardant red phosphorus: 0.6 ~ 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 ~ 0.1 part; (2) first banbury temperature is risen to 130 DEG C ~ 150 DEG C, add above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer successively, and plastify evenly mixing, then antioxidant β-(3 are added, 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; Mixing roll temperature is risen to 60 DEG C ~ 70 DEG C, each compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide is evenly mixing, then glue stuff compounding is moved on three-roller open mill and beat triangle Bao Bingjing thin-pass 4 ~ 6 times, roller temperature control is at 60 DEG C ± 5 DEG C, front roll temperature is higher than rear roll temperature 3 ~ 5 DEG C, cutting after thin-pass completes, cool for subsequent use.
7. the manufacture method of offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 6, it is characterized in that, raw material components and the weight content of described copper alloy silk braiding armour are as follows, copper: iron: plumbous: zinc=(89.0 ~ 91.0): (0.01 ~ 0.05): (0.01 ~ 0.05): 10.
8. the manufacture method of heat-resisting soft individual screen instrument cable of the offshore oil and gas engineering according to claim 6 or 7, it is characterized in that, described chemical crosslinking polyolefin insulation layer adopts cold feeding manner to extrude on twin-screw rubber extruding machine, the draw ratio of screw rod is (15 ~ 25): 1, the fuselage one district temperature of twin-screw rubber extruding machine is 110 DEG C ± 5 DEG C, fuselage two district temperature is 120 DEG C ± 5 DEG C, head temperature is 130 DEG C ± 5 DEG C, mold temperature is 140 DEG C ± 5 DEG C, and rubber extruding machine cooled screw mode is water cooling.
9. the manufacture method of offshore oil and gas engineering heat-resisting soft individual screen instrument cable according to claim 8, it is characterized in that, when described chemical crosslinking polyolefin insulation layer is extruded on twin-screw rubber extruding machine, the line length of holding of core rod is 1:(1 ~ 1.2 with the external diameter ratio extruded), the gap between core rod and die sleeve is 1 ~ 1.5mm; Described electro-insulating rubber enters cross-linking tube road after the head of described twin-screw rubber extruding machine is extruded, and the temperature of described crosslinked pipeline is 160 DEG C ~ 180 DEG C.
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| CN103227002B (en) * | 2013-03-26 | 2016-01-20 | 江苏远洋东泽电缆股份有限公司 | Flame-retardant pair twist shielding instrument cable peculiar to vessel and manufacture method thereof |
| CN103871631A (en) * | 2014-03-01 | 2014-06-18 | 无为县金华电缆材料有限公司 | Constructional engineering cable |
| CN103871629A (en) * | 2014-03-01 | 2014-06-18 | 无为县金华电缆材料有限公司 | Heat-resisting flexible armoured cable for constructional engineering |
| CN103871572A (en) * | 2014-03-01 | 2014-06-18 | 无为县金华电缆材料有限公司 | Flexible acid and alkali resistant cable for constructional engineering |
| CN103871573A (en) * | 2014-03-01 | 2014-06-18 | 无为县金华电缆材料有限公司 | Flexible cable for constructional engineering |
| CN103971807A (en) * | 2014-04-24 | 2014-08-06 | 安徽徽宁电器仪表集团有限公司 | Rubber flexible cable |
| CN104779006A (en) * | 2015-04-01 | 2015-07-15 | 江苏港宏电线电缆有限公司 | Alarm cable with rat resistance and moisture resistance functions |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5310964A (en) * | 1991-07-23 | 1994-05-10 | Bicc Public Limited Company | Electric and communication cables |
| CN2909472Y (en) * | 2006-05-22 | 2007-06-06 | 江苏馨晟特种电缆有限公司 | Three-screen simple protection signal control cable |
| CN201345236Y (en) * | 2009-01-14 | 2009-11-11 | 安徽龙庵电缆集团有限公司 | Waterproof instrument cable for vessels |
| CN102082004A (en) * | 2010-12-30 | 2011-06-01 | 河南华泰特种电缆有限公司 | Cleaning-type oil-resistant cable |
| CN203013337U (en) * | 2012-11-16 | 2013-06-19 | 江苏远洋东泽电缆股份有限公司 | High-temperature-resistant soft independent shielding instrument cable for offshore oil gas engineering |
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| Publication number | Publication date |
|---|---|
| CN102969050A (en) | 2013-03-13 |
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