CN101256856A - Method for preventing sulfuration steam entering into rubber sleeve cable - Google Patents
Method for preventing sulfuration steam entering into rubber sleeve cable Download PDFInfo
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- CN101256856A CN101256856A CNA200810019700XA CN200810019700A CN101256856A CN 101256856 A CN101256856 A CN 101256856A CN A200810019700X A CNA200810019700X A CN A200810019700XA CN 200810019700 A CN200810019700 A CN 200810019700A CN 101256856 A CN101256856 A CN 101256856A
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Abstract
For resolving a problem that steam enters into a conductive core line and a cable core line in vulcanization process, the invention provides a method for preventing the steam from entering into a rubber sleeve cable, which can isolate the steam out when the conductive core line and the cable core line go into a vulcanization pipe. Thus, the quality of production is improved, and waste is reduced. Through the method, a down-lead of an extruding machine is drawn out of a mold core in the producing process of extruding and vulcanizing the conductive core line and the cable core line, and the conductive core line or the cable core line is connected with the down-lead behind the mode core, extruded rubber material encases the joint from the joint position of the down-lead, then goes into a vulcanization pipe and is vulcanized, therefore, the steam is prevented out of the conductive core line and the cable core line.
Description
Technical field
The present invention relates to a kind of method that prevents sulfuration steam entering into rubber sleeve cable, belong to the processing and the production field of cable.
Background technology
The demand of electric wire is very large in development and national economy.And rubber insulation protective case wire cable (calling Plastic-sheathed Cable in the following text) accounts for a big chunk wherein, Plastic-sheathed Cable is because the characteristics of its soft pliable song, be other cable can not than, the kind of rubber is a lot of in addition, it has a lot of other advantages: as characteristics such as heat-resisting, anti-ozone, acid and alkali-resistance, anti-air pollution, so Plastic-sheathed Cable extensively is used in the occasion of important and high-risk such as boats and ships, submarine, nuclear power, wind power generation, colliery, rolling stock.But in the production process of rubber cable, rubber all will be through tens kilograms every square centimeter high steam sulfuration, and steam is easy to enter conductor wire core or becomes in the cable core and goes.Once steam enters cable inside, the quality of cable is caused great influence, buried great potential potential safety hazard to use occasion.Particularly having under the occasion of fall laying, moisture accumulates in the lower end connector box of cable under the effect of gravity, and the lighter causes insulation resistance decline line tripping to have a power failure, and weight person causes the cable joint blast to cause bigger accident.
Cable inside enters water vapour and moisture is avoiding greatly in the electric wire production, and the production of rubber insulation rubber protective case wire cable be unable to do without steam, electric wire inside is not that a spot of steam and moisture are arranged in the former production process, to cut off that part that steam is arranged in the electric wire exactly, all brought certain loss for each production cost of quality of electric wire, this has proposed an important problem for the production of electric wire.How to improve the quality of products, reduce the loss, reduce cost.
The method of crowded insulating barrier in conductor outside and the outer squeeze jacket of stranding is illustrated in fig. 1 shown below in the prior art, and among the figure, 1 is conductor, and 2 is core rod, and 3 is solation, and 4 is die sleeve, and 5 is steam, and 6 is curing tube.It in the production of this mode conductor wire core or becoming cable core all is to join at curing tube 6 front ends and lead-in wire earlier, steam 5 one in the curing tube 6 is opened, under tens kilograms pressure, steam 5 can enter in the gap of conductor wire core or stranding in gap or stranding gap between the conductor wire core monofilament, steam is met the cold globule that becomes, smaller volume, the steam 5 of back continues toward conductor wire core again or becomes in the cable core gap to replenish, this process will last till that always the chieftain of driving line has gone out the lower seal of curing tube, just has been full of steam in nearly like this about 100 meters conductor wire core or the one-tenth cable core.In theory, one kilogram pressure can be the height of hydraulic pressure to 10 meter.Use this mode of production, conductor wire core or become to enter in the cable core steam and keep away unavoidably, in order to guarantee the quality of cable product, often the conductor wire core that will produce each driving or become cable core will clip about 100 meters causes the significant wastage of production.
Summary of the invention
In order to solve the problem that steam goes in entering conductor wire core and becoming cable core in the sulfidation, the invention provides a kind of method that prevents sulfuration steam entering into rubber sleeve cable, this method just can be isolated outside steam when becoming cable core to enter curing tube at conductor wire core.Not only improve the quality of product, reduced waste simultaneously.
Technical scheme of the present invention is as follows:
A kind of method that prevents sulfuration steam entering into rubber sleeve cable, it is characterized in that at conductor wire core or become cable core to extrude vulcanizing in the production process, the lead-in wire of extruder is pulled out core rod, conductor wire core or one-tenth cable core carry out joint at the back and the lead-in wire of core rod, the sizing material of extruding begins to encase the conductor (conductor in the conductor of conductor wire core or the one-tenth cable core) of joint and joint back from the joint location of lead-in wire, enter curing tube again and vulcanize, steam promptly is stopped in conductor wire core or becomes the cable core outside.The joint is earlier by plastic squeeze, after vulcanize, outside steam can be stopped in.
For extruding of the conductor wire core of small bore, during joint the lead-in wire with conductor (conductor of conductor wire core) between by a bit of steel wire rope both are connected, the steel wire rope two ends are provided with little ring, the little ring at two ends is connected with conductor with lead-in wire respectively, to go between and link into an integrated entity with conductor, the sizing material of extruding begins to encase joint from the joint area of lead-in wire, and segment steel wire and conductor behind the joint;
For the conductor wire core of medium specification or extruding of one-tenth cable core, between lead-in wire and conductor (conductor of conductor wire core or become conductor in the cable core), both are coupled together during joint by a bit of chain, the sizing material of extruding begins to encase joint from the joint area of lead-in wire, and chain behind the joint and conductor;
For extruding of the one-tenth cable core of medium specification, peel off into the insulating barrier of cable core after, the conductor in it is connected with chain one end.
Become extruding of cable core for the large specification in use for mine cable, to become the insulation displacement of cable core during joint, conductor in it directly links together with lead-in wire, the unvulcanized rubber bar of usefulness packs tightly near joint, until wrapped external diameter near laying up diameter, wrap with adhesive tape outside it, the sizing material of extruding begins to encase joint from the joint area of lead-in wire, and the conductor behind the joint again.
The present invention has following advantage compared to existing technology:
Method effect of the present invention is obvious, has well solved the problem of cable water inlet admission, has not only improved the quality of product, and the waste of Jian Shaoing has improved economic benefit simultaneously.The more important thing is and eliminated unsafe factor and hidden danger that use occasion exists.Product also therefore of the present invention has obtained users' favorable comment, particularly has been subjected to the favorable comment and the welcome of coal mine user.
Description of drawings:
Fig. 1 extrudes schematic diagram for rubber in the continuous vulcanization technology in the prior art.
Fig. 2 extrudes schematic diagram for rubber in the continuous vulcanization technology of the present invention.
Embodiment:
As shown in Figure 2, among the figure, 1 is conductor, and 2 is core rod, and 3 is solation, and 4 is die sleeve, and 5 is steam, and 6 is curing tube, and 7 are lead-in wire, and 8 is joint.The method that prevents the sulfuration steam Plastic-sheathed Cable of the present invention, the curing line of extruding that is used for Plastic-sheathed Cable, comprise for conductor wire core and extrude insulating barrier outside, become cable core to be used for extruding outside sheath, lead-in wire 7 is drawn out die sleeve 4 and is connected with conductor thread core 1 with core rod 2, solation 3 begins to extrude from 7 joint 8 places of going between and with conductor wire core or become cable core to coat, the steam in curing tube 65 carries out vulcanizing treatment again.In order to prevent that steaming 5 in the sulfidation enters conductor wire core or become cable core.
The continuous vulcanization production procedure may further comprise the steps:
1, pay off rack on conductor of preparing to produce or the one-tenth cable core
2, traction takes turns to the core rod front on the mistake
3, the draught line chieftain is passed core rod
4, make joint according to size
5, start is produced
6, sizing material will be gone up hermetically closing after being squeezed into joint and crossing core rod
7, open steam valve, cable enters about the sulphur pipeline 70-100 of company of sealing
8, joint cuts out lower seal after going out curing tube
9, cross traction wheel down
10, amputate take-up reel on the finished cable of about 1 meter back of joint area
The present invention tells following several different jointing method according to the specification of Plastic-sheathed Cable.
One, for small bore (general 16mm
2Below) conductor wire core:
Extruder can adopt φ 45 or φ 65 rubber extruding machines, and during joint, the present invention adopts about 1 meter steel wire rope that the left and right sides is tiny, and two is processed into and is had little ring.(is the conductor that will produce the conductor in the conductor wire core, be generally the copper core or the aluminium core of many compositions, the coated insulation layer that has, what insulating barrier was arranged peels off the insulating barrier part) cut off about half, go here and there in one the little ring, tighten with conductor conversely, note tightening the back external diameter and be not greater than former conductor diameter.Because the stretch breaking strength of steel wire is more much bigger than the stretch breaking strength of copper wire, can guarantee enough that with the steel wire rope of external diameter steel wire rope is not broken in process of production.Be connected with the little ring of steel wire rope other end after with same procedure lead-in wire being passed core rod, during driving, the sizing material that extruder is extruded wraps in the outside of steel wire rope, sizing material is also got in the gap of steel wire simultaneously, steel wire rope long about 1 meter is combined with together closely with the sizing material of extruding, and effectively stops entering of steam.
Two, for the conductor wire core of medium specification with become cable core (to refer generally to the cross section at 16mm
2Above conductor wire core and diameter are at 20mm and following become cable core):
The present invention adopts the chain of different size to solve, for extruding insulated wire cores, because the size of core rod is very nearly the same with the external diameter of conductor wire core basically when joining mould, so the external diameter of the chain of selecting for use can not be greater than the external diameter of conductor wire core, as long as can guarantee that the pulling force of chain is just passable greater than the pulling force of conductor wire core.The hole that of the conductor that cuts off some copper wires (conductor of conductor wire core) is passed chain tightens conversely and fastens, the other end of chain uses the same method and connects lead-in wire, so just chain is connected on the centre of lead-in wire and conductor, this section is pulled in the front of inlet wire mould, when extruder was driven, the sizing material of extruding had been got in the space of chain, has filled up rubber in the chain, after the curing tube that closes is opened steam, stopped up steam effectively and entered in the conductor wire core.
Concerning being extruded into cable core, situation is just much easier, because becoming cable core is that insulated wire cores is stranded, after peeling insulation off, the copper wire conductor of multiply can not cut and cut off less, copper wire conductor (peelling off the one-tenth cable core of insulating barrier) is linked to each other with suitable chain two ends respectively with lead-in wire, tighten conversely then and fasten, cause has been peelled off its external diameter of copper wire conductor of insulating barrier less than the external diameter that becomes cable core, so the external diameter of joint can not surpass laying up diameter, and little to the pulling force influence of driving, can not cause and when driving, break joint.During driving, the sizing material that extruder is extruded wraps on the joint and chain of lead-in wire, is also got into sizing material in the gap of chain, and sizing material has also been got in the joint of chain and copper wire conductor, when entering curing tube again, can effectively stop the cable core that enters into of steam.
Three, for the extruding of mining cable sheath (big specification cable stranding diameter is generally more than 20mm)
Become extruding of cable core for mining cable, extruder adopts φ 150 rubber extruding machines, because insulation thickness is thicker, it is much smaller more than laying up diameter to strip out insulation back conductor and external diameter together, the way that adopts is that the conductor that strips out directly is connected with lead-in wire: promptly the mode of the afterbody of the one-tenth cable core head that will process and lead-in wire with terminal is connected together, at the position of joint, except the knot of joint was big, remaining position was all little than becoming the cable core external diameter.The joint maximum outside diameter of joint can not be greater than laying up diameter, just can not be greater than the aperture of core rod, otherwise with hard thing it is struck tightly.Other position at joint packs tightly with unvulcanized rubber bar,, wraps at its external application rubberized tape near laying up diameter until wrapped external diameter again.The sizing material of extruding so just begins to encase joint from the joint area of lead-in wire, and the wrapped rubber of rubber that steam is extruded and joint stops outside, has not advanced in the cable core.
Claims (6)
1, a kind of method that prevents sulfuration steam entering into rubber sleeve cable, it is characterized in that at conductor wire core or become cable core to extrude vulcanizing in the production process, lead-in wire when extruding is pulled out core rod, conductor wire core or one-tenth cable core carry out joint at the back and the lead-in wire of core rod, the sizing material of extruding begins to encase joint from the joint location of lead-in wire, enter curing tube again and vulcanize, steam promptly is stopped in conductor wire core or becomes the cable core outside.
2, method according to claim 1, it is characterized in that: for the conductor wire core of small bore, during joint the lead-in wire with conductor between by a bit of steel wire rope both are connected, the steel wire rope two ends are provided with little ring, the little ring at two ends is connected with conductor with lead-in wire respectively, and the sizing material of extruding begins to encase joint from the joint area of lead-in wire.
3, method according to claim 1, it is characterized in that: for the conductor wire core or the one-tenth cable core of medium specification, by a bit of chain both are coupled together between lead-in wire and conductor during joint, the sizing material of extruding begins to encase joint from the joint area of lead-in wire.
4, method according to claim 3 is characterized in that for the extruding of the one-tenth cable core of medium specification, peel off into the insulating barrier of cable core after, the conductor in it is connected with chain one end.
5, method according to claim 1, it is characterized in that: become extruding of cable core for the large specification in use for mine cable, to become the insulation displacement of cable core during joint, conductor in it directly links together with lead-in wire, the unvulcanized rubber bar of usefulness packs tightly near joint,, wrap with adhesive tape outside it near laying up diameter until wrapped external diameter, the sizing material of extruding begins to encase joint from the joint area of lead-in wire again.
6,, it is characterized in that the external diameter of described joint is not more than the external diameter of conductor or stranding according to claim 1,2,3,4 or 5 described methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810019700XA CN101256856A (en) | 2008-03-12 | 2008-03-12 | Method for preventing sulfuration steam entering into rubber sleeve cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810019700XA CN101256856A (en) | 2008-03-12 | 2008-03-12 | Method for preventing sulfuration steam entering into rubber sleeve cable |
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| CN101256856A true CN101256856A (en) | 2008-09-03 |
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| CNA200810019700XA Pending CN101256856A (en) | 2008-03-12 | 2008-03-12 | Method for preventing sulfuration steam entering into rubber sleeve cable |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976604A (en) * | 2010-10-09 | 2011-02-16 | 远东电缆有限公司 | Method for insulation of cabtyre cable and continuous vulcanization and water blocking of sheath |
| CN102642292A (en) * | 2012-03-15 | 2012-08-22 | 浙江峻和橡胶科技有限公司 | Manufacturing method of rubber mandrel for automotive part |
| CN101728032B (en) * | 2008-10-27 | 2012-11-14 | 远东电缆有限公司 | Conductor connector for catenary continuous vulcanization of cross-linked cables and catenary continuous vulcanization preparation method for cross-linked cables |
| CN103000309A (en) * | 2011-09-09 | 2013-03-27 | 广州裕泽线缆有限公司 | Waterproof process of rubber sheathed cable joints and material applied thereby |
| CN103065725A (en) * | 2012-12-29 | 2013-04-24 | 常州船用电缆有限责任公司 | Traction joint and method preventing steam from entering rubber sleeve cable |
| CN110415890A (en) * | 2019-07-17 | 2019-11-05 | 常州八益电缆股份有限公司 | The manufacturing method of fire-resisting cable |
| CN111785441A (en) * | 2020-06-23 | 2020-10-16 | 广东日丰电缆股份有限公司 | Rubber sleeve cable production process |
-
2008
- 2008-03-12 CN CNA200810019700XA patent/CN101256856A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728032B (en) * | 2008-10-27 | 2012-11-14 | 远东电缆有限公司 | Conductor connector for catenary continuous vulcanization of cross-linked cables and catenary continuous vulcanization preparation method for cross-linked cables |
| CN101976604A (en) * | 2010-10-09 | 2011-02-16 | 远东电缆有限公司 | Method for insulation of cabtyre cable and continuous vulcanization and water blocking of sheath |
| CN101976604B (en) * | 2010-10-09 | 2012-02-22 | 远东电缆有限公司 | Method for insulation of cabtyre cable and continuous vulcanization and water blocking of sheath |
| CN103000309A (en) * | 2011-09-09 | 2013-03-27 | 广州裕泽线缆有限公司 | Waterproof process of rubber sheathed cable joints and material applied thereby |
| CN102642292A (en) * | 2012-03-15 | 2012-08-22 | 浙江峻和橡胶科技有限公司 | Manufacturing method of rubber mandrel for automotive part |
| CN102642292B (en) * | 2012-03-15 | 2016-05-25 | 浙江峻和橡胶科技有限公司 | The manufacture method of the rubber wick that auto parts and components are used |
| CN103065725A (en) * | 2012-12-29 | 2013-04-24 | 常州船用电缆有限责任公司 | Traction joint and method preventing steam from entering rubber sleeve cable |
| CN103065725B (en) * | 2012-12-29 | 2015-09-02 | 常州船用电缆有限责任公司 | Tow attachment |
| CN105047315A (en) * | 2012-12-29 | 2015-11-11 | 常州船用电缆有限责任公司 | Method for preventing steam from entering into rubber cable |
| CN110415890A (en) * | 2019-07-17 | 2019-11-05 | 常州八益电缆股份有限公司 | The manufacturing method of fire-resisting cable |
| CN111785441A (en) * | 2020-06-23 | 2020-10-16 | 广东日丰电缆股份有限公司 | Rubber sleeve cable production process |
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Open date: 20080903 |