CN1393330A - Conductive plastic sheet and its manufacturing method - Google Patents

Abstract

To provide a conductive plastic sheet wider than the conventional one. SOLUTION: The manufacturing method of the conductive plastic sheet is to melt conductive plastic, let it flow into two branched channels, extrude it in parallel from mouthpieces 5a, 5b with linear slits into two sheets S1 , S2 , and at same time, to arrange two electrode lines L1 , L2 near both ends and between the two formed sheets to deliver them together with the sheets, then, to pressure weld the two formed sheets into one integrated sheet L3 .

Description

Conductive plastic sheet and manufacture method thereof

Technical field

The present invention relates to a kind of conductive plastic sheet and manufacture method thereof, it be applicable to the amplitude broad the sheet heater, floor heating or seedling furrow, agricultural such as raise pigs, raise chickens use or other purposes in, use when carrying out the large tracts of land heating.

Background technology

For example, extensively the floor heating device that adopts is exactly on the beam face under the floor in household house or on the concrete floor face, lays planar heat producing body by heat-insulating material, again laying floor thereon.

Using various planar heat producing bodies in the above-mentioned floor heating device, if but these devices are carried out main classification, thermal medium floor heating type and electric floor heating type are then arranged.

Thermal medium floor heating type is the groove that forms the meander-like heat radiating structure above the adiabatic sheet material of laying on beam under the floor or the concrete floor face, be made of the synthetic resin foaming body, in this groove, dispose polyethylene pipe or copper pipe chimericly, supply with by the warmed-up thermal medium of boiler from a side of this pipe, discharge from the opposing party, it is back in the above-mentioned boiler.

The floor heating device of this thermal medium floor heating type, owing in the pipe of thermal medium in the floor of supplying with by boiler, along with the little by little heat release of advancing makes the temperature reduction, thereby, the heat of necessity can not be released to indoor problem with regard to having when the temperature that is fed to the thermal medium in the pipe at first when not being very high.

In addition, as mentioned above since the thermal medium in the pipe when advancing, its temperature is also reducing, thereby it is inhomogeneous with regard to occurrence temperature to carry out the part of floor heating, can not indoorly correctly be heated to necessary temperature to 1.

Finish to early autumn from spring, arranged long one period that needn't carry out heating, because this section interior heat in period medium does not flow, thermal medium is trapped in can be rotten in the pipe, and pipe itself also can worsen and produces dirt, these dirts gradually with the pipe hole plug, thereby can reduce the heating ability attached to the inner face of pipe within a short period of time significantly.

This operating period is 6 years～8 years usually approximately, and the life-span of heating plant has also arrived.Like this, one by this, because hot water can not be fully mobile, just produces the problem that can not heat, thereby must all replace whole pipes., must move the furniture in the house of living etc. for this reason, must rebuild processing etc. to floor then, therefore essential with the long repairing time and the expense of great number, the problem of making troubles to life be arranged.

Electric heating type has 2 kinds, and a kind of is that metal foil layer is stacked on insulation such as the plastic sheet sheet material, and this metal forming etch is formed heat radiating structure; Another kind is the groove that forms heat radiating structure on thicker insulation sheet material, and the periphery kuromore silk that coated that insulated is embedded in the above-mentioned groove.

Also have a kind of sheet heater, it is to sneak into the plastic grain fusion of the fine-powder of carbon, cools off, makes thus conductive plastic sheet after the formation sheet; When being shaped, the above-mentioned carbon dust that constitutes conductive material is biased on the surface, form sheet heater with electric conductivity and flexibility.

The manufacture method of above-mentioned formed body formula heater is with so-called pipe type mode, for example the Japanese patent gazette spy is put down in writing for public clear 54-1232463 number, it is by the annular nozzle that is attached on the extrusion moulding machine plastics of fusion to be squeezed into tubular, meanwhile the diametric(al) of the inside of 2 these tubular formed bodies of electrode one edge is sent, when this formed body also is in soft state, between 2 pinch rolls, its pressurization is formed 2 and roll over tabulars on one side; Under the state of electrode wires clamping it being configured in two ends, between this electrode wires and formed body, form the electrical bond state, after this, carry out quenching and make the planar heat producing body of flat sheet shape.

According to the experience of the inventor in the medium-term and long-term accumulation of this technical field, if the manufacture method of this cylindric heater is that to be used for making diameter be that 60～220mm, its thickness are the thin cylindrical body of diameter of 0.8～1.5mm degree, and form the 2 narrower sheet materials of rolling over of amplitude thus, then can stably make planar heating sheet material with desired resistance.

This means the planar heating sheet material of the standard of making and what sell is to form 2 foldings, smooth laminated sheet, its amplitude is 200mm, and length is 2500mm, and the consumption electric power of every sheet material is 240～300W.Warm up heat under 40 ℃ occasion in the surface temperature of using this planar heating sheet material with the indoor floor face of 6 straw mats, just need lay this planar heat producing body 5 Zhang Pings capablely, at this moment total power consumption just reaches 1.2KW.

Using like this under the occasion of many planar heat producing bodies, the lead-in wire that is connected with the electrode wires of each planar heat producing body must be respectively be configured in the heating house in the floor near be connected to electrical cables, so this configuration operation is just more miscellaneous.Because must dispose Thermal Cutoffs and temperature sensor on each planar heat producing body, add the miscellaneous of above-mentioned distribution again, so the problem of the cost of manufacture of making increase is just arranged.

Below, illustrate the situation that Japanese household carries out floor heating construction, earlier heat-insulating material is laid in the prescribed limit on the beam plate under the floor.Then with bus bar configuration position around the planar heating sheet material of laying.Then with planar heating sheet material, be laid on the top of above-mentioned heat-insulating material with preposition with matching.Then above-mentioned electrode to electrical cables and planar heating sheet material is interconnected, again will be to electrical cables with on automatic leakage circuit breaker is connected.Lay the soaking plate that is made of metallic plates such as aluminium sheets then above this planar heating sheet material, being processed into when making the floor surface side produce hot-fluid does not have temperature deviation, the floor is laid with material finish the floor heating device from the teeth outwards at last.

By the laying operation of above-mentioned planar heating sheet material as seen, be provided with in the construction of floor heating device, must carry out many operations, for example the timber work that beam under the floor etc. is processed Japanese household; Lay planar heating sheet material and with itself and the electrical engineering that is connected to electrical cables; Again floor surface is carried out the timber work of repair project; Also must carry out upholstery operations such as wallpaper.

Therefore, in this construction, various know-how operating personnels must carry out the operation of part by stages according to the adjustment of plan schedule, the duration will be spun out for this reason, delay in case operation takes place, and will exert an influence to follow-up operation according to priority.

Below, relation to Master Cost and engineering cost is discussed, in the engineering cost of floor heating, if Master Costs such as planar heating sheet material are taken as [1], the ratio that engineering cost is [1.5] that is provided with that then contains electrical engineering, compare with Master Costs such as planar heating sheet materials, this is provided with engineering cost is quite high.

Above said implication be that some amplitudes are also wideer than the heating sheet material of former 200mm degree by preparing, the planar heating sheet material about for example 500mm, with the number that is provided with reduce half or still less, simultaneously by adopting those by the operating personnel beyond the electrical construction person, for example just can carry out the wiring utensil (connector) of wiring operation simply, the Master Cost of floor heating and laying expense relatively can be reduced by the carpenter.

And, be laid on the planar heat producing body number on the floor, length and minimizing wiring position, the number of passing through to reduce Thermal Cutoffs and temperature sensor by minimizing by shortening distribution, can also when improving security, reduce cost of equipment.

Above said implication be the manufacturing amplitude is wideer than former planar heating sheet material, preferably 2～3 times, have bigger meaning aspect the floor heating equipment being provided with at an easy rate.

But, cylindrical body in the past with pipe type mode, formation Markite, then, when it also is in soft state, be pressed into it partially flat and make in the method for conductive plastic sheet, be provided with the discharge slit of the ring-type mouthpiece that is used to form the specific thickness cylindrical body, and be extremely complicated to the structure that this slit carries out fine adjustments, its operation also is suitable difficulty.

Its reason is that will correctly to form a narrow annular channel with specified diameter be difficult, in addition, the adjusting in the gap on each slit position also is difficult to, and, when regulating 1 position, can have influence on the part of adjacency, the gap is changed fully, the also just difficult good cylindrical body of precision that forms.Therefore, the pipe fitting made from this pipe type mode is only limited to thickness and precision and requires not too high agricultural film or supermarket film for packaging.

Manufacturing installation in the past also has the problem that device makes and the problem of stable operation, for example will stably insert the electrode that is configured on the conductive plastic sheet both sides, and this operation is just difficult.

In addition, when wanting that part of conductive plastic sheet thickness of configured electrodes line thickeied a little, the slit of ring-type mouthpiece is regulated and is difficult to.Based on this all reason, the device of the pipe type mode before will intactly using in proportion in fact is quite difficult with enlarging.

Summary of the invention

As mentioned above, in the manufacture method of the conductive plastic sheet of pipe type, in essence the problem that can not use enlargedly in proportion arranged.The objective of the invention is in order to address these problems, the present invention who makes in order to reach this purpose has the structure of the following stated.

1) manufacture method of conductive plastic sheet of the present invention is characterized in that, branch ground after the Markite fusion is flowed in many streams; By mouthpiece it is extruded into many sheet materials abreast with wire slit; Meanwhile, 2 strip electrode lines are configured near the two ends between these many 2 shaping sheet materials, side by side send with above-mentioned sheet material; Then on one side with above-mentioned electrode wires clamping, push bonding above-mentioned many shaping sheet materials on one side and form 1 conductive plastic sheet of one.

2) manufacture method of conductive plastic sheet of the present invention is characterized in that, the Markite fusion is branched off into 2 streams, flows, expands into tabular behind the flow adjustment part; Meanwhile, while adjust its thickness, by mouthpiece, extrude as 2 shaping sheet materials with linearity slit of opening abreast; And 2 strip electrode lines are configured near the two ends between these 2 shaping sheet materials, side by side send with above-mentioned shaping sheet material; During 2 shaping sheet materials are in soft state, push then, be integral 1 bonding shaping sheet material in the mode of the above-mentioned electrode wires of clamping; Again with this shaping sheet material quenching.

3) manufacture method of conductive plastic sheet of the present invention is characterized in that, will be branched off into 2 streams after the Markite fusion, flows, expands into tabular behind the flow adjustment part; While adjusting its thickness, extruding as 2 different shaping sheet materials of thickness by the mouthpiece of 2 slits with linear parallel ground opening; Meanwhile 2 strip electrode lines are configured near the two ends between these 2 shaping sheet materials, side by side send with above-mentioned shaping sheet material; During aforementioned 2 shaping sheet materials are in soft state, push then, be integral bonding shaping sheet material; Again this shaping sheet material quenching is formed 1 shaping sheet material.

4) conductive plastic sheet of the present invention is with the two ends between Markite fusion, 2 shaping sheet materials extruding, on one side electrode wires is drawn, push 2 shaping sheet materials on one side and 1 conductive plastic sheet forming; It is characterized in that above-mentioned electrode wires is made of litzendraht wire; Above-mentioned plastics are joined between this litzendraht wire.

5) conductive plastic sheet of the present invention, it is characterized in that it is made like this, promptly, be 2 shaping sheet materials with the Markite melt-shaping, electrode wires is led to the two ends between this shaping sheet material on one side, on one side 2 shaping sheet extrusion are formed 1 conductive plastic sheet; Above-mentioned electrode wires is made of litzendraht wire, and above-mentioned plastics are joined between this litzendraht wire, and the electric conductivity fine-powder that also will constitute Markite is biased on the sheet surface.

The present invention is that the plastic grain of will sneak into electric conductivity fine-powder such as carbon black mixes the back heating and melting individually or with this particle and other uniform particles, the plastics of this fusion are squeezed into many, 2 sheet particularly, electrode wires is sent two ends to these sheet materials abreast, when this sheet material is in soft state that it is stacked, again they are pushed and make 1 conductive plastic sheet.

The conductive structure of conductive plastic sheet is the surface that the fine-powder that carbon black is such is biased in above-mentioned sheet material, thus, electric current is flowed on the surface of this sheet material.Such 2 shaping sheet materials is stacked and be combined into 1 of the present invention then all forms this conductive structure on two surfaces and pars intermedia.

Among the present invention, with the plastics fusion, and it is configured as the smooth sheet material of 2 Zhang Pings is to push from the slit of mouthpiece, and this slit is that the metallic plate of 2 lip shapes is formed facing to ground, can correctly carry out the adjustment between slit.Therefore can adopt easy adjustment extruding mouthpiece, particularly can regulate the thickness of the molten plastic amplitude direction of extruding easily.Like this, according to special purposes, at random the thickness of amplitude of accommodation direction can be used as the conductive plastic sheet that is applicable in the heating plastic sheet that for example has the Temperature Distribution that matches with the part of heating.

Because the present invention used the mouthpiece with wire slit, thereby can be as easy as rolling off a log and make the amplitude broad effectively and have the conductive plastic sheet of specific thickness.

Because conductive plastic sheet of the present invention mainly is used as planar heat producing bodies such as floor heating, its heating temp is below 50 ℃, preferably 45 ℃～40 ℃, thereby so long as thermoplastic resin, various can both the use for example can be used polypropylene, polyethylene, polybutene etc.

The present invention extrudes the smooth sheet material of 2 Zhang Pings, under soft state that it is stacked bonding and form 1 planar heating sheet material, but, the sheet material that insulated plastic constitutes on also can be on the two sides of 1 planar heating sheet material making like this stacked is extrusion molding like that in addition, make laminated construction, thus, make the planar heat producing body that covers with the insulation sheet material continuously.

Though the linearity slit of mouthpiece can easily form parallel 2 sections, also can form the multistage more than 2 sections, thereby can form the sheet material of sandwich construction.Because can easily carry out the adjustment of slit separation, therefore can make the sheet material of thickness again as planar heating sheet material with best electric heating characteristic.

Conductive plastic sheet of the present invention, can also be as heating sheet material and electric insulation sheet material, the sheet material that stacked formation is made of the plastics with other characteristics, perhaps under the state that can increase a little in the hardness of the heating sheet material of extruding, the plastic sheet that will have other character is in its surface stacked and form one.

Technological thought of the present invention is documented in the following embodiment, but the present invention is not limited to these embodiments, can carry out all distortion in the scope of the technological thought that this specification is put down in writing.

The manufacture method of conductive plastic sheet of the present invention, it is characterized in that by forming machine with the Markite fusion after, supply with metal mould device, branch ground flows in many streams of this metal mould device, mouthpiece by many (preferably 2) slits with linear parallel is squeezed into many sheet with it, near the two ends between these many shaping sheet materials, dispose 2 strip electrode lines again, and side by side send with above-mentioned sheet material, then facing to 2 shaping sheet materials push bonding during also being in soft state and be combined into one, make 1 conductive plastic sheet.

Therefore, compare, can make the conductive plastic sheet that amplitude enlarges 2～3 times approximately effectively with the manufacture method of former section of jurisdiction mode.

Because mouthpiece is a linearity, thereby can easily adjust the sheet thickness of its longitudinally, and can adjust the thickness of sheet material respectively, can cooperate the characteristic of planar heat producing body and the plastic sheet that purposes produces any amplitude and thickness.

In addition, can also a side use thicker sheet material, the opposing party uses under the state of thin sheet material, and they are formed one, makes the conductive sheet that excellent durability is arranged thus.

Particularly under the plastic sheet occasion of the amplitude of manufacturing broad, except the standard sheet material of making 2 electrode wires of above-mentioned configuration, also can be at pars intermedia configured electrodes line, can form thus just like with many planar heating sheet materials laterally abreast in conjunction with the conductive plastic sheet of such amplitude broad, making the energising position is many places, the energy formation temperature is more even, the planar heat producing body that caloric value is big.

Therefore, compare with the electric floor heating device etc. of planar heat producing body before using, conductive plastic sheet of the present invention can provide manufacturing price and construction work expense are reduced, and the floor heating device that can lay effectively.

Description of drawings

Fig. 1 is the normal cross sectional drawing of building mortion of the conductive plastic sheet of embodiment of the present invention.

Fig. 2 is the skiagraph of device shown in Figure 1.

Fig. 3 is the vertical view of above-mentioned building mortion.

Fig. 4 is the sectional drawing of obtaining along the A-A line among Fig. 1.

Fig. 5 is the schematic diagram of the stream overview of the molten plastic in the expression metal die.

Fig. 6 is the oblique view of expression building mortion overview.

The specific embodiment

Below, with reference to accompanying drawing, embodiments of the present invention are described.

Fig. 1 is the normal cross sectional drawing of building mortion of the conductive plastic sheet of embodiment of the present invention, Fig. 2 is the skiagraph of device shown in Figure 1, Fig. 3 is the vertical view of above-mentioned building mortion, Fig. 4 is the sectional drawing of obtaining along the A-A line among Fig. 1, Fig. 5 is the schematic diagram of the stream overview of the molten plastic in the expression metal die, and Fig. 6 is the oblique view of the whole building mortion overview of expression.

The building mortion 1 that is applicable to the conductive plastic sheet of planar heat producing body is made of metal mould device and extruding roller sections 14, the former by with figure in do not have the extruder of expression be connected connection fittings 2, shunting accessory 3 and sheet material shaping accessory 4 form; The latter is arranged on the rear of above-mentioned metal mould device.And above-mentioned sheet material shaping accessory 4 is made of 3 main members as described below.

Connection fittings 2 are made of flange 2a and connecting portion 2b, and portion is provided with the stream 2c of the molten plastic that is made of Markite with connecting in the central.And, as shown in Figure 1, the mouth of the stream 2d that is connected with above-mentioned stream 2c is opened on the shunting accessory 3, as Fig. 2 and shown in Figure 6, stream 2d is split into stream 2e and 2f, and for example shown in the figure, form runner hole 2g, 2h along the amplitude direction of sheet material shaping accessory 4, they are thick groove shapes, are used to relax pressure.

And, form thickness slit 2i, the 2j thicker in the wake flow side of runner hole 2g, 2h (see figure 2) than shaping sheet material, be provided with mouthpiece 5a, 5b at the terminal part of this slit 2i, 2j.

Fig. 2 and Fig. 5 represent stream 2c, 2d, 2e, the 2f of above-mentioned molten plastic, are runner hole 2g, 2h then, are the overview of overall flow paths such as slit 2i, 2j after again.

Below, flowing of the molten plastic that is made of Markite is described.

Joint portion 2k by connection fittings 2 accepts by the molten plastic of discharging after the forming machine fusion of not representing among the figure, flow through columnar stream 2c, then, by columnar stream 2d be split into 2 (about) cylindrical shape stream 2e, 2f, enlarge pressure equalization under the effect of molten plastic storage portion to the amplitude direction at runner hole 2g, 2h place then.

Then, this molten plastic is by slit 2i, and 2j makes its reduced thickness become the expansion of sheet ground, and from being in mouthpiece 5a, the 5b part on sheet material shaping accessory 4 terminal parts, the limit is adjusted its thickness edges and discharged with identical speed, as 2 conductive plastic sheet S1, S2.

As shown in Figure 2, above-mentioned shaping accessory 4 be be the center with axle 10, be configured in its both sides accessory 4a, 4b the combination constitute.And on the mating surface of accessory 4a, the 4b of this axle 10 and its both sides, critically form respectively do not have expression in detail among runner hole 2g, 2h and the figure and below paired face, the face that is formed into right slit 2i, 2j and paired mouthpiece 5a, the face of 5b on choke valve 7a, the 7b that will illustrate.

On the main position of above-mentioned molten plastic stream, disposing the choke valve that is used to adjust plastic flow.Promptly, on columnar stream 2d, be provided with 2 flow rate regulating valve 6a, 6b (see figure 1), be transported to the flow of the molten plastic in runner hole 2g, the 2h by its adjusting, and runner hole 2g, 2h enlarge along the amplitude direction of sheet material shaping accessory 4.

And, as depicted in figs. 1 and 2, at the rear (wake flow side) that forms lambdoid runner hole 2g, 2h choke valve 7a, 7b are being set linearity, the molten plastic that is launched into sheet by the effect of slit 2i, 2j has been flowed restriction effect, making the stream that all becomes uniform sheet.

And, in sheet material shaping accessory 4 ends, be provided with mouthpiece 5a, 5b to landing, can regulate the thickness of discharge slit with the end face of axle 10, after the thickness by its adjusting conductive plastic sheet S1, S2, discharge shaping.

The structure of flow rate regulating valve 6a, 6b (see figure 1) is that valve body is moved forward and backward with respect to cylindrical shape stream 2d, to adjust the amount of flow path throttling.On the other hand, the structure of choke valve 7a, 7b is that linearity valve body 7c, 7d are moved forward and backward with respect to the plane that forms on axle 10 two sides, carries out trickle adjustment with the thickness to the conductive plastic sheet S1, the S2 that are discharged from.

Mouthpiece 5a, 5b are fixed on the member 4a, the 4b that constitute sheet material shaping accessory 4 last (seeing Fig. 4, Fig. 6) by a plurality of bolt 5c, 5d respectively, and adjust relative spacing with axle 10 with bolt 5e, 5f (seeing Fig. 1, Fig. 2), so just can regulate the thickness of conductive plastic sheet S1, S2.

As Fig. 1 and shown in Figure 6, guide hole 11a, the 11b of above-mentioned shunting accessory 3 and 4 connections of sheet material shaping accessory, lead electrode line are parallel to each other, and make the aperture offer into the central portion of perforation axle 10 thickness, and the guide wire 12a, the 12b that are connected with this guide hole 11a, 11b are provided with highlightedly from the end face of shaping accessory 4.With use the multiply thin copper wire form through braiding trickle space, with improve with the cementability of plastics, through the flat electrode wires L1, the L2 that improvement electric conductivity and send the both sides between 2 conductive plastic sheet S1, S2 abreast.

Near the wake flow side of above-mentioned shaping accessory 4, be provided with the compression roller portion 14 that constitutes by 1 couple of compression roller 14a, 14b, 2 conductive plastic sheet S1, the S2 and 2 electrode wires L1, the L2 that also are in soft state that are discharged from are pushed, it is become one, make the conductive plastic sheet S3 that planar heat producing body was suitable for that is mainly used in floor heating etc.

Illustrate by way of parenthesis again, as depicted in figs. 1 and 2, building mortion 1 is the molten plastic that longitudinally is provided with, is made of Markite towards the supply of ground, below from the top, make its planarization and form 2 conductive plastic sheet S1, S2, they are pushed with the pressure of regulation with the compression roller 14a, the 14b that are arranged on sheet material shaping accessory 4 belows again, electrode wires L1, L2 are sandwiched and make 1 conductive plastic sheet S3.

And, as shown in Figure 2, by towards laterally drawing ground, disposing cooling device 17 (normally be immersed in carry out in the cooling water cold) with building mortion 1 near-earth that joins, make water spread to energetically that sheet material S3 goes up or the quenching by dipping, thus adjustment characteristic (positive characteristic) stabilisation that the sheet material S3 of electrical conductive structure is had.

Above-mentioned electrode wires L1, L2 are to use the thin copper cash of multiply to be woven, and flat slightly litzendraht wire preferably uses the litzendraht wire that many retractilities are arranged in length direction and amplitude direction.

Why this electrode wires L1, L2 must have retractility to be because when cooling plastic sheet material S3, are to shrink apace with sizable ratio (the amplitude direction is 10～30%, length direction be 4～9%), and electrode wires L1, L2 must adapt therewith.

As mentioned above, the plastic sheet S1, the S2 that also are in soft state that are discharged by sheet material shaping accessory 4 just become a flat conductive plastic sheet S3 who is applicable to planar heat producing body after pushing with compression roller portion 14 as shown in Figure 2.

And when with cooling device 17 this conductive plastic sheet S3 being cooled off, as described above, amplitude is shrunk to more much smaller than the amplitude of discharging from mouthpiece 5a, 5b.And, also shrink along its length, but because the effect of compression roller portion 14 is arranged on this direction, thereby its amount of contraction little than amplitude direction.

Therefore, electrode wires L1, L2 preferably use has retractable property, can be along with the amplitude direction of sheet material S1 and S2 and the contraction of length direction are shunk, if use the electrode wires that does not have flexibility, this moment, the fluctuation fluctuating will take place in the both side edges portion at conductive plastic sheet S3, can become the such state of sea-tangle, because the revisal of this state is difficult, thereby essential attention in manufacturing process.

Below, the shaping of synthetic resin sheet material is described.

As shown in Figure 1, the building mortion 1 formed of the metal mould device that is made of a plurality of Hardware fittings is connected with the extrusion nozzle portion that melt extrudes machine.And the thermoplastic plastic of supplying with extruder can use various materials, and wherein also can use polypropylene, heat resistant poly ethene or polybutene etc.

In above-mentioned thermoplastic plastic, add about 15～30% fine particle shape conductive carbon, manufacture particle after for example adding furnace black.Then, after in mixer, this uniform particles ground being mixed, supply with forming machine, be heated to about about 200 ℃ melt temperature, make its fusion, discharge by spray nozzle part then, by the connecting portion 2K (seeing Fig. 3, Fig. 5) of the connection fittings 2 of building mortion 1 of the present invention, it is flowed in the stream 2c, after then being split into stream 2e, 2f, flow into runner hole 2g, the 2h of sheet material shaping accessory 4, it is all pressed by this part by the stream 2d that shunts accessory 3.

Then, flow through above-mentioned runner hole 2g, 2h and the molten plastic of all having pressed flows into slit 2i, the 2j that forms on axle 10 two sides; Open stream in this expansion and become sheet.Then, form 2 conductive plastic sheet S1 and S2, and discharge continuously by the mouthpiece 5a that is configured in sheet material member 4 bottoms, slit that 5b forms.

On the other hand, by shunting accessory 3 and the guide hole 11a that is provided on the sheet material shaping accessory 4,11b, and be arranged on guide wire 12a on the sheet material shaping accessory 4,12b's, electrode wires L1 by 2 litzendraht wires (preferably being woven into thin copper cash flat) formation, L2 is sent to the conductive plastic sheet S1 after the firm shaping, both sides between S2, then, compression roller 14a by compression roller portion 14,14b is being discharged by mouthpiece, push when also being in soft state, electrode wires L1,1 conductive plastic sheet S3 is made in formation integratedly under the state that L2 sandwiches.

The conductive plastic sheet S3 of Xing Chenging is specially adapted to used planar heat producing bodies such as floor heating like this, and the sheet material S3 of progressive forming is cut into specific length.Then, the coating protective layer that constitutes with stable on heating insulation sheet material such as thicker polyester film or polyethylene sheets is its whole coverings, then this is coated in protective layer and outgas, simultaneously with its watertight seal, form firm planar heat producing body.Then, lead-in wire is connected on electroplax line L1, the L2 that draws from two edge of conductive plastic sheet S3, can carries out the connector of distribution again according to purposes on fixing simply.

The amplitude of conductive plastic sheet S1, S2 constructed in accordance is 400～530mm, and thickness is 0.8～1.5mm.And in order to use and lay the convenience of operation, its length is the 2500mm degree normally.

At this moment consumption electric power is per 1 cost 500W degree, and this consumes electric power and has such characteristic, promptly, when rush of current, flow through maximum current, along with temperature rises and reduces gradually, be stabilized in the temperature of regulation.In addition, can be provided with side by side on 1 conductive plastic sheet S3 more than 2,3 (both sides and centre) electrode wires for example, thus, become the parallel state that connects of 2 planar heat producing bodies, can regulate the current separation and the caloric value that flow between 2 strip electrodes with regard to pictograph.

If adopt the present invention, owing to compare with the conductive plastic sheet that the manufacture method before using is made, have about amplitude more than 2 times, thereby on for example being used in the floor heating device time, can reduce its laying number, its operation also can easily be carried out.

In addition, when use can be easily with connector etc. during with structure that distribution is connected, even also can carry out the operation of heating engineering by the staff beyond the electrical engineering personnel, needn't be as former floor heating engineering, carry out the operation that constitutes by multiple work with the mode of time difference, can make construction more effective.

Above-mentioned embodiment is to illustrate with 1 forming machine, squeeze out the situation of a kind of Markite, but, also available 2 forming machines, squeeze out 2 kinds of Markites, and make a side sheet material have electric conductivity thus, make the opposing party's sheet material have insulating properties, and then the sheet material that electric conductivity is different is stacked and make.

In addition, under the occasion of using 3 kinds of plastics, can also make plastic sheet effectively with other characteristic.

Claims (5)

1. the manufacture method of a conductive plastic sheet is characterized in that, branch ground after the Markite fusion is flowed in many streams; By mouthpiece it is extruded into many sheet materials abreast with wire slit; Meanwhile, 2 strip electrode lines are configured near the two ends between 2 shaping sheet materials on opposite, side by side send with above-mentioned sheet material; Then on one side with above-mentioned electrode wires clamping, push bonding above-mentioned many shaping sheet materials on one side and form 1 conductive plastic sheet of one.

2. the manufacture method of a conductive plastic sheet is characterized in that, will be branched off into 2 streams after the Markite fusion, flows, expands into tabular behind the flow adjustment part; Meanwhile, while adjust its thickness, by mouthpiece with 2 slits of opening abreast as 2 shaping sheet material and extrude; And 2 strip electrode lines are configured near the two ends between these 2 shaping sheet materials, side by side send with above-mentioned shaping sheet material; Push in the mode of the above-mentioned electrode wires of clamping during 2 shaping sheet materials are in soft state then, 1 bonding shaping sheet material becomes one; Again with this shaping sheet material quenching.

3. the manufacture method of conductive plastic sheet as claimed in claim 2 is characterized in that, will be branched off into 2 streams after the Markite fusion, flows, expands into tabular behind the flow adjustment part; While adjusting its thickness, extruding as 2 different shaping sheet materials of thickness by the mouthpiece of 2 slits with linear parallel ground opening; Meanwhile 2 strip electrode lines are configured near the two ends between these 2 shaping sheet materials, side by side send with above-mentioned shaping sheet material; During 2 shaping sheet materials are in soft state, push then, be integral bonding shaping sheet material; Again this shaping sheet material quenching is formed 1 shaping sheet material.

4. conductive plastic sheet is Yi Bian be with the two ends between Markite fusion, 2 shaping sheet materials extruding, 2 shaping sheet materials are drawn, pushed to electrode wires and 1 conductive plastic sheet forming on one side; It is characterized in that above-mentioned electrode wires is made of litzendraht wire, joins above-mentioned plastics between this litzendraht wire.

5. conductive plastic sheet, it is characterized in that it is made like this, promptly, be 2 shaping sheet materials with the Markite melt-shaping, electrode wires is led to the two ends between this shaping sheet material on one side, on one side 2 shaping sheet extrusion are formed 1 conductive plastic sheet; Above-mentioned electrode wires is made of litzendraht wire, and above-mentioned plastics are joined between this litzendraht wire; The electric conductivity fine-powder that also will constitute Markite is biased on the sheet surface.

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