CN103709463A - Enhanced water-cooled cable sleeve rubber material and manufacturing technology thereof - Google Patents

Abstract

The invention relates to an enhanced water-cooled cable sleeve rubber material and a manufacturing technology thereof. The material consists of 18wt% of natural rubber, 12wt% of butylbenzene rubber, 7.95wt% of butadiene rubber, 8.5wt% of chloroprene rubber, 10wt% of peel reclaim, 9.5wt% of high abrasion carbon black, 15wt% of kaolin, 9.5wt% of light calcium carbonate, 2wt% of zinc oxide, 0.6wt% of stearic acid, 0.1wt% of paraffin, 0.4wt% of accelerant M, 0.25wt% of accelerant TMTD, 0.4wt% of accelerant DM, 1wt% of anti-aging agent, 0.8wt% of sulfur, 3wt% of pine tar oil and 1wt% of engine oil; through the manufacturing technology of plastication, one-section mixing, two-section mixing and three-section mixing, the water-cooled cable sleeve rubber material with comprehensive performances of high pressure resistance, high temperature resistance, abrasion resistance, shock resistance, thermal radiation resistance, aging resistance and the like is obtained; a water-cooled cable protective sleeve manufactured from the material can improve the safety protection coefficient of industrial electric heating equipment heavy current busbars, and the service life of the water-cooled cable protective sleeve is also prolonged exponentially.

Description

A kind of enhancement type water-cooled cable sleeve pipe elastomeric material and manufacture craft

Technical field

The present invention relates to a kind of elastomeric material and manufacture craft, relate in particular to a kind of for making elastomeric material and the technique of water-cooled cable shoe for heavy-current bus-bars protection.

Background technology

Water-cooled cable sleeve pipe is the synthetic rubber tube of industrial electroheat equipment heavy-current bus-bars external protection, and it is vulcanized in being integrally formed jointly by inner glue layer, multilayer folder cloth winding layer, outer glue-line and thermal protection shield.Because sleeve pipe is in high pressure, high temperature for a long time, the state that is hit moves, so it must possess good high pressure resistant, high temperature resistant, wear-resistant, shock resistance, anti-thermal radiation, ageing resistance.And as the main rubber of outer glue-line and inner glue layer the quality to above-mentioned performance, play most important effect.Under the operating mode that the existing elastomeric material for water-cooled cable sleeve pipe is severe in hot environment, water quality is bad, work, can not meet high pressure resistant, high temperature resistant, wear-resistant, shock resistance, anti-thermal radiation, aging-resistant performance requriements, in life cycle, in the not long time, there will be crackle, strip off, blow, the phenomenon such as aging, under operating mode that especially need to be crooked at circuit, this phenomenon is even more serious, as keeped in repair not in time, changing, will bring potential potential safety hazard.Therefore, manufacture experimently out and a kind ofly can meet heavy-current bus-bars under the complex working conditions such as high temperature, high pressure, water-cooled cable sleeve pipe elastomeric material and the manufacture craft with high protective capacities are most important.

Summary of the invention

The object of the invention is to provide a kind of enhancement type water-cooled cable sleeve pipe elastomeric material and manufacture craft, solve the technological deficiency that existing water-cooled cable sleeve pipe elastomeric material exists, make water-cooled cable sleeve pipe have more high-tensile, high heat resistance, high-wearing feature and anti-thermal radiation, ageing resistance.

To achieve these goals, Bian of the present invention gets following technical scheme and implements: a kind of enhancement type water-cooled cable sleeve pipe elastomeric material, by weigh per-cent by following component plasticate, mixing making:

Natural rubber 18%;

Styrene-butadiene rubber(SBR) 12%;

Cis-1,4-polybutadiene rubber 7.95%;

Chloroprene rubber 8.5%;

Peel reclaim 10%;

High wear-resistant carbon black 339 9.5%;

Kaolin 15%;

Light calcium carbonate 9.5%;

Zinc oxide 2%;

Stearic acid 0.6%;

Paraffin 0.1%;

Captax 0.4%;

Vulcanization accelerator TMTD 0.25%;

Altax 0.4%;

Antioxidant 4010 1%;

Sulphur 0.8%;

Stockholm tar 3%;

Machine oil 1%.

Manufacture craft is:

One, plasticate

natural rubber, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, chloroprene rubber, peel reclaim that precentagewise in component is weighed and obtained, put into opening rubber mixing machine and plasticate;

the roll spacing of rubber mixing machine is adjusted to 1.5mm left and right and breaks glue;

the roll spacing of rubber mixing machine is adjusted to 0.5mm, and roller temperature control, 45 ℃ of left and right, by roller gap, allows sizing material directly fall into stock pan on the film of breaking once glue;

again the roll spacing of rubber mixing machine is transferred to the lower sheet of desired lower thickness cutting, is formed sheet broken-(down)rubber;

the plasticity number of check broken-(down)rubber is 0.34 ± 0.005;

broken-(down)rubber park after 24 hours, carry out again mixing.

Two, mixing

1, one section mixing

first drop into 70% broken-(down)rubber and 80% by component weigh percentage match well high wear-resistant carbon black 339, kaolin, light calcium carbonate, zinc oxide, stearic acid, Stockholm tar, machine oil, mineral wax mixture in Banbury mixer, mixing 10min under the temperature of 70-120 ℃ and 0.3-0.6mpa pressure; Again by remaining 30% broken-(down)rubber and remaining 20% by component weigh percentage match well high wear-resistant carbon black 339, kaolin, light calcium carbonate, zinc oxide, stearic acid, Stockholm tar, machine oil, mineral wax mixture in Banbury mixer, repeat sheet under mixing 5min binder removal and form rubber master batch, and dump temperature is arranged between 105-110 ℃;

rubber master batch is cooling parks that after 24 hours, to carry out second segment mixing.

2, two-stage mixing

rubber master batch is put into Banbury mixer and add by component altax, captax, Vulcanization accelerator TMTD, the antioxidant 4010 that per-cent obtains of weighing, sheet under mixing 5min binder removal under the temperature of 85-95 ℃ and 0.3-0.6mpa pressure, and dump temperature is not more than 95 ℃.

two-stage mixing glue is parked after 24 hours and is carried out three-stage mixing.

3, three-stage mixing

get two-stage mixing glue and put into opening rubber mixing machine, and add after sulphur mixingly by the component per-cent of weighing, melting temperature is no more than 100 ℃, and rubber mixing machine preliminary roller Temperature Setting is 70-75 ℃, and rear roll temperature is set as 80-90 ℃, mixing evenly after sheet under binder removal;

three-stage mixing glue is parked after 24 hours stand-by.

The present invention is according to weigh per-cent batching of component, and successively will prepare burden through over-mastication and one section of mixing, two-stage mixing, three-stage mixing, thereby obtain there is high pressure resistant, high temperature resistant, wear-resistant, shock resistance, the water-cooled cable sleeve pipe elastomeric material of anti-thermal radiation, the over-all properties such as anti-aging, the water-cooled cable protection tube of producing with this material, the safety precaution coefficient that can improve industrial electroheat equipment heavy-current bus-bars, be also multiplied work-ing life.

Embodiment

By the per-cent of weighing, described 18% natural rubber, 12% styrene-butadiene rubber(SBR), 7.95% cis-1,4-polybutadiene rubber, 8.5% chloroprene rubber, 10% peel reclaim are put into opening rubber mixing machine and plasticate, the roll spacing of rubber mixing machine is adjusted to 1.5mm left and right and breaks glue; The roll spacing of rubber mixing machine is adjusted to 0.5mm, and roller temperature control, 45 ℃ of left and right, by roller gap, allows sizing material directly fall into stock pan on the film of breaking once glue; Again the roll spacing of rubber mixing machine is transferred to the lower sheet of desired lower thickness cutting, is formed sheet broken-(down)rubber; The plasticity number of check broken-(down)rubber is 0.34 ± 0.005; Broken-(down)rubber park after 24 hours, carry out again mixing.

Mixing through one section of mixing, two-stage mixing, three-stage mixing, one section mixing first drop into 70% broken-(down)rubber and 80% by component weigh percentage match well 9.5% high wear-resistant carbon black 339,15% kaolin, 9.5% light calcium carbonate, 2% zinc oxide, 0.6% stearic acid, 3% Stockholm tar, 1% machine oil, 0.1% mineral wax mixture in Banbury mixer, mixing 10min under the temperature of 70-120 ℃ and 0.3-0.6mpa pressure; Again by remaining 30% broken-(down)rubber and remaining 20% by component weigh percentage match well 9.5% high wear-resistant carbon black 339,15% kaolin, 9.5% light calcium carbonate, 2% zinc oxide, 0.6% stearic acid, 3% Stockholm tar, 1% machine oil, 0.1% mineral wax mixture put into Banbury mixer, repeat sheet under mixing 5min binder removal and form rubber master batch, and dump temperature is arranged between 105-110 ℃, rubber master batch is cooling parks that after 24 hours, to carry out second segment mixing; Two-stage mixing is put into Banbury mixer by rubber master batch and is added 0.4% altax, 0.4% captax, 0.25% Vulcanization accelerator TMTD, 1% antioxidant 4010, sheet under mixing 5min binder removal under the temperature of 85-95 ℃ and 0.3-0.6mpa pressure, and dump temperature is not more than 95 ℃, two-stage mixing glue is parked after 24 hours and is carried out three-stage mixing; Three-stage mixing is got two-stage mixing glue and is put into opening rubber mixing machine, and add after 0.8% sulphur mixing, melting temperature is no more than 100 ℃, rubber mixing machine preliminary roller Temperature Setting is 70-75 ℃, rear roll temperature is set as 80-90 ℃, sheet under mixing evenly rear binder removal, three-stage mixing glue is parked after 24 hours stand-by.

The present invention is according to weigh per-cent batching of component, and successively will prepare burden through over-mastication and one section of mixing, two-stage mixing, three-stage mixing, thereby obtain there is high pressure resistant, high temperature resistant, wear-resistant, shock resistance, the water-cooled cable sleeve pipe elastomeric material of anti-thermal radiation, the over-all properties such as anti-aging, this material is made water-cooled cable protection tube, the safety precaution coefficient that can improve industrial electroheat equipment heavy-current bus-bars, be also multiplied work-ing life.

Claims (2)

1. an enhancement type water-cooled cable sleeve pipe elastomeric material, it is characterized in that this material by weigh per-cent by following component plasticate, mixing making:

Natural rubber 18%;

Styrene-butadiene rubber(SBR) 12%;

Cis-1,4-polybutadiene rubber 7.95%;

Chloroprene rubber 8.5%;

Peel reclaim 10%;

High wear-resistant carbon black 339 9.5%;

Kaolin 15%;

Light calcium carbonate 9.5%;

Zinc oxide 2%;

Stearic acid 0.6%;

Paraffin 0.1%;

Captax 0.4%;

Vulcanization accelerator TMTD 0.25%;

Altax 0.4%;

Antioxidant 4010 1%;

Sulphur 0.8%;

Stockholm tar 3%;

Machine oil 1%.

2. the manufacture craft of a kind of enhancement type water-cooled cable sleeve pipe elastomeric material as claimed in claim 1, is characterized in that described manufacture craft comprises the following steps:

One, plasticate

natural rubber, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, chloroprene rubber, peel reclaim that precentagewise in component is weighed and obtained, put into opening rubber mixing machine and plasticate;

the roll spacing of rubber mixing machine is adjusted to 1.5mm left and right and breaks glue;

the roll spacing of rubber mixing machine is adjusted to 0.5mm, and roller temperature control, 45 ℃ of left and right, by roller gap, allows sizing material directly fall into stock pan on the film of breaking once glue;

again the roll spacing of rubber mixing machine is transferred to the lower sheet of desired lower thickness cutting, is formed sheet broken-(down)rubber;

the plasticity number of check broken-(down)rubber is 0.34 ± 0.005;

broken-(down)rubber park after 24 hours, carry out again mixing;

Two, mixing

1, one section mixing

first drop into 70% broken-(down)rubber and 80% by component weigh percentage match well high wear-resistant carbon black 339, kaolin, light calcium carbonate, zinc oxide, stearic acid, Stockholm tar, machine oil, mineral wax mixture in Banbury mixer, mixing 10min under the temperature of 70-120 ℃ and 0.3-0.6mpa pressure; Again by remaining 30% broken-(down)rubber and remaining 20% by component weigh percentage match well high wear-resistant carbon black 339, kaolin, light calcium carbonate, zinc oxide, stearic acid, Stockholm tar, machine oil, mineral wax mixture in Banbury mixer, repeat sheet under mixing 5min binder removal and form rubber master batch, and dump temperature is arranged between 105-110 ℃;

rubber master batch is cooling parks that after 24 hours, to carry out second segment mixing;

2, two-stage mixing

rubber master batch is put into Banbury mixer and add by component altax, captax, Vulcanization accelerator TMTD, the antioxidant 4010 that per-cent obtains of weighing, sheet under mixing 5min binder removal under the temperature of 85-95 ℃ and 0.3-0.6mpa pressure, and dump temperature is not more than 95 ℃;

two-stage mixing glue is parked after 24 hours and is carried out three-stage mixing;

3, three-stage mixing

get two-stage mixing glue and put into opening rubber mixing machine, and add after sulphur mixingly by the component per-cent of weighing, melting temperature is no more than 100 ℃, and rubber mixing machine preliminary roller Temperature Setting is 70-75 ℃, and rear roll temperature is set as 80-90 ℃, mixing evenly after sheet under binder removal;

three-stage mixing glue is parked after 24 hours stand-by.