CN216626075U - Taper-tensioned high-thermal-conductivity temperature-equalizing composite interlayer hot roller - Google Patents

Abstract

The utility model discloses a taper tensioning high-thermal-conductivity temperature-equalizing composite interlayer hot roller which comprises an outer metal sleeve, an inner metal sleeve and n-2 layers of metal taper sleeves, wherein a high-thermal-conductivity material composite interlayer is clamped between the metal sleeves; the outer surface of the outer metal sleeve is cylindrical, and the inner surface of the outer metal sleeve is in a cone frustum shape; the conicity of two metal sleeve surfaces clamping the same high-thermal-conductivity material composite interlayer is the same, and the high-thermal-conductivity material composite interlayer is compacted between the contact surfaces of the inner sleeve and the outer sleeve through the tensioning of the conical surfaces to realize a good heat transfer effect; the high-thermal-conductivity material composite interlayer is made of a plurality of layers of metal foils and high-thermal-conductivity materials according to requirements, and the high-thermal-conductivity material composite interlayer has the characteristics of low manufacturing cost, high safety, high temperature control precision, energy conservation and environmental protection.

Description

Taper-tensioned high-thermal-conductivity temperature-equalizing composite interlayer hot roller

Technical Field

The utility model relates to a taper tensioning high-thermal-conductivity temperature-equalizing composite interlayer hot roller.

Background

The most common hot rollers in the industry are hot sleeved liquid heat medium rollers, and most of the hot sleeved liquid heat medium rollers use heat conducting oil as a heat medium to transmit heat. Most of the rollers are rollers provided with spiral oil flow channels and also rollers with straight flow channels along the axial direction. The hot fluid connects the rotating roller and the oil heating device which is statically placed into a loop through the rotary joint to continuously work. The problem of the way of inputting the heat carrier for temperature control is that the leakage of the heat carrier fluid caused by the abrasion of the rotary sealing element inevitably occurs in the process of inputting the heat carrier fluid into and out of the rotary roller through the rotary joint, which is a problem that the industry does not properly solve all the time. The common high-temperature thermal fluid is heat conducting oil, and the leakage of the heat conducting oil can pollute the production environment; the oil is carbonized due to continuous high temperature, so that the heat transfer effect is poor. Therefore, hot rolls using "heat pipe" technology are introduced to the industry for demanding production equipment.

The high heat conduction temperature-equalizing roller is usually a heating roller manufactured by the principle of a 'heat pipe'. The working surface of the roller is heated by using the characteristic that the material form of some objects is changed from liquid state to gas state at different temperatures, and the temperature uniformity of the working surface of the roller is ensured by using the temperature equalization characteristic of gas state heat release. For example, a high-performance induction heating roller of the japanese special electric company (TOKUDEN) heats the inner wall of the roller by an electromagnetic heater inside the roller, so that liquid filled in the roller in a vacuum state is heated to become steam, the steam contacts the inner wall of the outer roller sleeve to heat the outer roller, the steam is condensed into liquid after releasing heat and returns to the outer wall of the inner roller and is heated again to become steam, and heat is transferred uniformly in a circulating and reciprocating manner. The heat pipe media filled in the rollers with different heating temperature intervals are different, for example, the heat medium filled in the heating roller with the temperature range from normal temperature to 280 ℃ is 'water', and the heat medium filled in the heating roller with the temperature of 200-420 ℃ is 'naphthalene'.

The heating roller in the form of the heat pipe has the advantages of uniform heating temperature and no problem of pollution to the production site environment due to oil leakage of the oil-heated rotary joint. The heating mode of heating and evaporating liquid into gas has higher requirement on the reliability of temperature control, and the heating effect is poor when the temperature is higher than a limited use temperature range; and the gasification pressure is too high and the possibility of explosion is caused after the temperature control is out of control and over-temperature is generated; the liquid filled in the heat pipe has a certain service life, and the heating and heat transfer effects in use can be gradually attenuated and lose efficacy; there is also a problem of slow leakage of liquid within the heat pipe causing failure. The effective heating temperature range of the heat pipe type heating device is narrow, and one medium cannot meet the requirement of processing products with different heating temperatures with wider temperature zones. For example, the 'aqueous medium heat pipe' cannot meet the requirement of the working condition of the temperature higher than 280 ℃, and is replaced by the 'naphthalene medium heat pipe' under the working condition of the temperature higher than 280 ℃.

In order to solve the above problems, there is a scheme idea of using a high thermal conductivity solid material to improve the temperature equalization effect, for example, a structural mode of clamping a high thermal conductivity material such as a graphite heat conducting film between two layers of thick-wall cylindrical pipe barrels is adopted, a mode of sleeving an outer pipe after high-temperature thermal expansion and then performing cooling and clamping is adopted for molding, or a mode of welding and sealing an inner sleeve into a cylinder after the inner pipe is an open cylinder body and the inner sleeve is tightly stretched, extruded and attached tightly. The cost of the electric heating roller manufactured by the scheme is lower than that of a heat pipe type heat roller, and the explosion risk is eliminated. The safety is improved to a certain extent compared with a heat pipe type hot roller. There are many disadvantages and there is a further need for improvement. Firstly, the sleeving mode is not enough, when the sleeving is heated, the remained gap is small, the heat conduction layer is easy to touch the high-heat-conductivity material during hot-fitting so as to influence the leveling effect of the heat conduction layer, and the high-heat-conductivity material with the heat conductivity on some surfaces is not easy to spread uniformly (especially when a softer and thinner graphite temperature-equalizing layer is used); when the heat-shrinkable sleeve is sleeved, the problem that the heat transfer effect is poor due to the fact that the metal cylinder body is not sufficiently heat-shrinkable and the high heat conduction layer is extruded and not compacted can also occur when the gap opening is large, the problem that the heat transfer effect of the cylinder body is not uniform due to the poor spreading effect of the high heat conduction layer can also occur, and particularly, the manual maintenance of the spreading effect of the soft heat conduction material is very difficult due to the small high-temperature gap when the sleeve is sleeved. When the inner cylinder body and the outer cylinder body are sleeved, the high heat conduction foil material is uniformly and tightly pressed in the interlayer gap to keep good contact, which is the key for ensuring the temperature equalization performance of the interlayer hot roller made of the high heat conduction material, and if the interlayer is not extruded, the heat conduction efficiency and the heat conduction precision are greatly reduced. The flatness and uniformity of the high heat conduction layer and the compactness of compaction are the most basic guarantee for exerting the temperature equalizing effect of the temperature equalizing roller of the high heat conduction material composite interlayer.

When a plurality of temperature-equalizing complex structure interlayers are used, the manufacturing difficulty and the manufacturing cost of the multilayer cylinder are greatly increased due to complex repeated hot sleeving, so that the assembly quality of the interlayers is more difficult to guarantee, and the heating energy consumption of the hot sleeving is greatly increased. How to solve the above-described contradiction between the function of the roller and the manufacture of the roller? The scheme of tightly pushing the non-hot-mounted taper sleeve at the lower edge skillfully solves the contradiction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defect that the flatness, uniformity and compaction tightness of the paved high heat conduction layer cannot be ensured in the prior art of manufacturing the electric heating roller by hot sleeving, and provides a method for cold sleeving at normal temperature, namely a conical sleeve tensioning compaction method.

In order to solve the problem of the hot-set technology, the utility model provides the following technical scheme:

the utility model provides a taper-tensioned high-thermal-conductivity temperature-equalizing composite interlayer hot roller, which is a processing and manufacturing scheme of a tapered normal-temperature cold-assembled sleeved temperature-equalizing roller embedded with a high-thermal-conductivity material combination layer.

The roller is provided with an outer metal sleeve and an inner metal sleeve, a high-heat-conductivity material composite interlayer is clamped between the outer metal sleeve and the inner metal sleeve, the outer metal sleeve is cylindrical, and an inner cavity is in a cone frustum shape; the outer surface of the inner metal sleeve is also in a cone frustum shape and is complementary with the inner surface of the outer metal sleeve, a gap for placing the high-thermal-conductivity material composite interlayer is reserved between the outer metal sleeve and the inner metal sleeve, the inner cavity of the inner metal sleeve is cylindrical, and a heating source device is arranged in the inner cavity of the inner metal sleeve.

Furthermore, a first metal cone sleeve can be sleeved between the outer metal sleeve and the inner metal sleeve;

furthermore, a second metal cone sleeve can be sleeved between the outer metal sleeve and the first metal cone sleeve;

by analogy, the total number of layers of the metal cone sleeve is n-2, and the total number of layers of the metal sleeve consisting of the outer metal sleeve, the inner metal sleeve and each metal cone sleeve is n; a high-thermal-conductivity material composite interlayer is clamped between two adjacent metal sleeves, the number of the high-thermal-conductivity material composite interlayers is n-1, and n is 2,3,4,5 or 6; preferably, n is 2,3 or 4.

The conicity of two metal sleeve surfaces clamping the same high-thermal-conductivity material composite interlayer is the same, a conical frustum shape with the gap for placing the high-thermal-conductivity material composite interlayer is reserved, the contact surface of the high-thermal-conductivity material composite interlayer and the metal sleeve is compacted through the tensioning of the conical surface, good contact between the metal sleeve and the high-thermal-conductivity material composite interlayer is realized, good heat transfer effect is realized, and the preferred conicity range is 0.1-4 degrees.

The utility model improves the temperature consistency of the roller surface by utilizing the high heat transfer efficiency of the plurality of high-heat-conductivity material composite interlayers. The high-thermal-conductivity material in the high-thermal-conductivity material composite interlayer is a non-metal membrane layer (such as a graphene film, a graphite alkyne film, a graphite film, carbon fibers and fabrics thereof, a high-thermal-conductivity coating or other non-metal high-thermal-conductivity material layers), the high-thermal-conductivity material composite interlayer is formed by stacking a single-layer high-thermal-conductivity material or a plurality of layers of high-thermal-conductivity materials layer by layer, and when the plurality of layers of high-thermal-conductivity material layers need to be arranged, a layer of metal foil (which can be an aluminum foil, a copper foil, an iron foil or other metal materials) is arranged between every two adjacent 2 layers of high-thermal-conductivity material layers.

When the requirement on the temperature distribution uniformity of the roller is higher, the single high-thermal-conductivity material composite interlayer cannot meet the requirement on higher temperature equalization, and the temperature equalization capacity needs to be improved. Firstly, make the samming layer the compound samming layer that more layers of high thermal conductivity material made up, increase the quantity of every compound samming intermediate layer stack number of piles, a layer of nonmetal high thermal conductivity material layer stack one deck metal forming heat-conducting layer, stack one deck high heat-conducting nonmetal layer again and stack one deck heat-conducting metal foil layer, stack more layers according to this method as required. The thickness range of the high-thermal-conductivity material composite interlayer is 0.02-3 mm, and the high-thermal-conductivity material composite interlayer is stacked and combined as required. The superposition mode of the high-thermal-conductivity material composite interlayer is not only used for improving the temperature equalizing and heat transfer effects of the temperature equalizing layer, but also used for improving the rigidity of the composite high-thermal-conductivity material composite interlayer so as to be convenient for assembling with the metal cylinder.

The number of the combination layers of the superimposed layers of the high-thermal-conductivity material composite interlayer is increased, for example, a roller structure in which 2 high-thermal-conductivity material composite interlayers are clamped by 3 metal sleeves. The number of the superimposed layers in each high-thermal-conductivity material composite interlayer and the number of the total high-thermal-conductivity material composite interlayers ensure that the temperature equalizing effect of the roller is ensured.

In summary, the "multilayer" is realized by two aspects, on one hand, the high thermal conductivity material composite interlayer is formed by overlapping and combining "multiple layers" of high thermal conductivity materials and metal foil materials; another aspect is to include "multiple" HTC composite interlayers, i.e., n metal sleeves sandwiching n-1 HTC composite interlayers for n-1 suits.

A heater is arranged in the inner cavity of the cylinder of the metal sleeve at the innermost layer to provide heat energy for the rotating roller to heat. The heater can rotate along with the roller; also can be fixed and do not rotate, and the fixed simple supporting beam outside the roller extends into the roller through the central shaft hole of the roller to hang the heater bracket in the supporting roller. The heating source in the roller has a plurality of disclosed technical modes which are mature disclosed technologies, and the description is omitted, and the heating source is commonly used for heating an electric heating plate, an infrared electric heating pipe, electromagnetic heating and the like; the electric heater can be replaced by a gas heater, and the burner can be still arranged at the upper part in the roller to continuously heat the rotating roller.

The high-thermal-conductivity material composite interlayer between two adjacent metal cylinders is compacted in the gap between the metal sleeves through the conical surfaces of the inner metal sleeve and the outer metal sleeve. The heat that comes the inner skleeve transmission through the high heat conductivity of the compound intermediate layer of high thermal conductivity material spreads out fast on the high thermal conductivity aspect, utilizes the metal sleeve and the even heat of spreading out the back of the compound intermediate layer of high thermal conductivity material of intimate contact will pass through the metal sleeve again more even transmission for outer metal sleeve. The product is uniformly heated through the cylinder body of the metal sleeve on the outermost side.

Particularly, when the requirement on the uniformity of the roller surface temperature of the roller equipment is higher, the method can be realized by increasing the number of the composite interlayer combination layers of the metal taper sleeve layer and the high-thermal-conductivity material. The thickness of the metal taper sleeve layer is 1-10 mm, and the preferable thickness is 2-5 mm. The conicity of the adjacent matching surfaces of the metal sleeve is consistent, so that the inlaid high-thermal-conductivity material composite interlayer can be assembled with the contacted metal sleeve surface compactly, uniformly and consistently. In order to facilitate processing and assembly, the internal and external tapers of the metal tapered sleeve can be processed to be consistent, standardized processing and assembly are realized, manufacturing management is facilitated, and production cost is reduced. The effect of thermal spreading is better by inlaying more (1-5) high-thermal-conductivity material composite interlayers.

The high-thermal-conductivity material composite interlayer is embedded between the two metal roller bodies and is compacted and clamped to form a composite high-thermal-conductivity layer with good temperature-equalizing performance, the structure of the composite high-thermal-conductivity layer can improve the surface thermal conductivity of the thermal-conductivity layer and greatly improve the rigidity and stiffness of the composite high-thermal-conductivity layer due to the combination layer of the metal foil with good rigidity, and the heat transfer performance and the assembly effect of the roller high-thermal-conductivity interlayer set are improved. Non-metallic high thermal conductivity materials such as thin graphite class piece, carbon cloth are softer, because soft folding, wrinkling and turn-ups easily, make the degree of difficulty of guaranteeing to press from both sides the cover layer assembly quality great. In addition, some graphite film products are small and cannot be wound and wrapped tightly. The graphite film can be wound more tightly by using the metal foil tape.

Furthermore, when the frustum-shaped inner metal cylinder body is jacked into the inner cavity of the outer metal cylinder body with the same taper, the tension force in the circumferential direction is very large. The composite interlayer made of the high-thermal-conductivity material can be tightly compacted in the interlayer, and materials of the composite interlayer made of the high-thermal-conductivity material, such as a flexible graphite film, a carbon fiber fabric and the like, have certain compressibility, so that the contact effect of the composite interlayer made of the high-thermal-conductivity material and the metal cylinder body is good, and the heat transfer effect of the interlayer is guaranteed through the good contact effect. Thereby the external heating efficiency and the temperature uniformity effect of the hot roller are also ensured. The cone angle of the frustum-shaped metal cylinder is 0.1-4 degrees, preferably 0.3-2 degrees (the cone angle is the cone top included angle of the projection of the cone on the plane parallel to the cone axis).

Furthermore, after the tight compaction degree that rises of metal barrel intermediate layer reaches the process design requirement, weld the terminal surface gap of each layer of sleeve and seal for the sleeve combination becomes a whole, and airtight in the metal casing with high thermal conductivity material composite interlayer also makes high thermal conductivity material and the metal level that can probably take place the oxidation at high temperature such as graphite class membrane be difficult for taking place the oxidation degradation because of isolated with the air, makes the effective life of samming layer prolong greatly. It is a mature technology to make the roller by using the combined integrated cylinder as a circular shell, and the detailed description is omitted here. After the heat source device is arranged in the roller, the roller becomes a heating roller with a very good heat temperature equalizing effect.

The utility model has the following beneficial effects:

the high-thermal-conductivity temperature-equalizing composite interlayer hot roller has no problems of leakage failure of filled liquid and safety defect of possible over-temperature explosion of a 'hot pipe' type hot roller, and is a safer temperature equalizing method; compared with the heat source system of the oil heating device, which has a large amount of heat dissipation and energy consumption of oil pump driving, the heat energy consumption in the use process of the roller is greatly reduced, the problem of oil leakage and pollution in the use process of the roller can be thoroughly avoided, the production environment becomes cleaner and more sanitary, and the problem that oil products heated by oil need to be replaced regularly for several years is solved. The defects and difficulties of the hot-sleeved sandwich roller assembly method are avoided, the manufacturing cost is lower, the safety is higher, and the temperature control precision is higher; the operation cost of the production product of the production equipment using the roller is reduced, the safety and the reliability are improved, the dilemma that the roller price is high or the roller temperature control effect is poor or even the safety is poor, which is faced by the temperature control roller user in the industry at present, can be solved, and the requirement of the increasingly strict development situation of national environmental protection is met. Therefore, the implementation of the patent has excellent economic benefit and social benefit.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a high thermal conductivity temperature-equalizing composite interlayer hot roller, which is a schematic view of a taper-tensioned high thermal conductivity temperature-equalizing composite interlayer hot roller interlayer cylinder body according to the present invention;

FIG. 2 is a schematic axial view of a roll shell showing the structure of the tapered, tensioned, high thermal conductivity, uniform temperature composite sandwich thermal roll shell according to the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Examples

A taper tension high-thermal-conductivity temperature-equalizing composite interlayer hot roller sequentially comprises an inner metal sleeve 1, a first high-thermal-conductivity material composite interlayer 3, a first metal taper sleeve 4, a second high-thermal-conductivity material composite interlayer 5 and an outer metal sleeve 6 from inside to outside; a temperature sensor 7 is arranged near the edge of the outer metal sleeve 6;

the inner hole of the inner metal sleeve 1 is cylindrical, the outer cavity of the inner metal sleeve 1 is in a cone frustum shape, the inner part and the outer part of the first metal tapered sleeve 4 are in cone frustum shapes, the outer surface of the first metal tapered sleeve 4 is complementary with the inner surface of the outer metal sleeve 6 in taper, and the inner surface of the first metal tapered sleeve 4 is complementary with the outer surface of the inner metal sleeve 1 in taper; the clearance amount of a first high-thermal-conductivity material composite interlayer 3 and a second high-thermal-conductivity material composite interlayer 5 are respectively reserved between the inner metal sleeve 1 and the first metal cone sleeve 4 and between the first metal cone sleeve 4 and the outer metal sleeve 6; the outer surface of the outer metal sleeve is cylindrical, the inner cavity 2 of the inner metal sleeve 1 is cylindrical, and an electric (or gas) heating device is arranged in the inner cavity 2 of the inner metal sleeve.

The uniform-temperature electric heating roller can be manufactured by the following steps:

s1, estimating the number of layers of the metal cone sleeve to be set and the composition type of the high-thermal-conductivity material composite interlayer according to an application scene; tightly compacting the high-thermal-conductivity material composite interlayer by the taper tension of the conical surfaces of the inner and outer metal sleeves;

s2, welding and sealing end face gaps of all layers of the metal sleeve to enable the sleeve to be combined into a whole, sealing the high heat conduction layer in the metal shell, welding the combined cylinder with the interlayer into a cylindrical cylinder body, and turning the cylindrical cylinder body into a cylinder body. And (3) combining the cylinder with other components of the roller to manufacture the roller, and performing subsequent fine machining such as electroplating polishing and the like to obtain a finished roller product. If the roller has the requirement of a matte surface or patterns, the roller is correspondingly subjected to subsequent processing such as sand blasting, carving and the like to obtain the roller with the required surface morphology.

And S3, assembling an electric heating device in the roller.

The heating roller can realize high-precision control of the roller surface temperature, and the manufacturing method is simple. The efficient and uniform heat transfer of the roller in the embodiment benefits from the heat transfer effect of the stacked combination of the high-thermal-conductivity composite material layers formed by stacking and combining the high-thermal-conductivity materials. The graphene film material is already popularized and used for heat dissipation on the mobile phone, and a certain effect is achieved, so that the graphene film on the mobile phone has certain advantages compared with other heat conduction materials and other heat dissipation modes. The utility model overcomes the defect that the scheme in the prior art is far from insufficient in utilization of high thermal conductivity performance of graphene films and the like, and has certain disadvantages in the capability of quickly discharging heat before and after the heat of a chip is spread by a high thermal conductivity material embedded in a mobile phone. The interface bonding between the heat conduction material and the heating chip is an important condition of heat conduction, the adhesion of the high heat conduction layer material in the mobile phone between the mobile phone shell and the chip is realized by the heat conduction adhesive, the heat conduction of the heat conduction adhesive is very low (about 5w/mk, the heat conduction of a common graphene (alkene) film is at least about 1000w/mk, the difference is 200 times, and the heat conduction capability difference is huge), the high heat conduction adhesive is only high compared with the low heat conduction of plastics and common adhesives (less than 1w/mk), the heat conduction of the high heat conduction adhesive is much lower than the 40w/mk of common steel, the high heat conduction adhesive becomes a short plate in the heat discharge process of the mobile phone, and the advantage of the high heat conduction layer material is greatly discounted. The roller is not made of heat-conducting glue to strengthen interface connection, but is made of high-heat-conductivity material composite interlayers which are directly and tightly pressed and covered between two steel shell interlayers by using high clamping force, so that the two steel shell interlayers are in good contact with each other, and the heat transfer efficiency is good. The combined layer of the non-metal high-thermal-conductivity material (graphite flake, graphene film, graphite alkyne film, carbon fiber braided fabric and the like) and the high-thermal-conductivity metal layer which are many times faster than the steel heat transfer rate can uniformly transfer the rapidly spread heat out through the metal shell of the roller, so that the spreading temperature-equalizing effect of the heat on the composite layer surface of the high-thermal-conductivity material is finally reflected on the working surface of the metal roller.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a tapering rises compound intermediate layer heat roller of high thermal conductivity samming that rises which characterized in that, including outer metal sleeve, interior metal sleeve and the compound intermediate layer of high thermal conductivity material between the two, outer metal sleeve appearance is cylindrical, and the inner chamber is the circular cone frustum shape, and interior metal sleeve's surface also is the circular cone frustum shape, and complementary with outer metal sleeve's internal surface, leaves the clearance volume of placing high thermal conductivity material compound intermediate layer unit group between outer metal sleeve, the interior metal sleeve, interior metal sleeve's inner chamber is cylindrical, is equipped with the source device that generates heat in interior metal sleeve's the inner chamber.

2. The taper-tensioned high-thermal-conductivity uniform-temperature composite interlayer hot roller as claimed in claim 1, wherein a first metal cone sleeve is sleeved between the outer metal sleeve and the inner metal sleeve, a second metal sleeve is sleeved between the outer metal sleeve and the first metal cone sleeve, and so on, the total number of layers of the metal cone sleeves is n-2, and the total number of layers of the metal sleeves consisting of the outer metal sleeve, the inner metal sleeve and each metal cone sleeve is n; a high-thermal-conductivity material composite interlayer is clamped between two adjacent metal sleeves, the number of the high-thermal-conductivity material composite interlayers is n-1, n is 2,3,4,5 or 6;

the conicity of two metal sleeve surfaces holding the same high thermal conductivity material composite interlayer is the same.

3. The taper tension high-thermal-conductivity temperature-equalizing composite interlayer heat roller as claimed in claim 1 or 2, wherein the high-thermal-conductivity material composite interlayer comprises a high-thermal-conductivity material layer and a metal foil layer, the high-thermal-conductivity material is any one or more of a graphite layer, a graphene layer, a graphite alkyne layer and carbon fiber cloth, and the high-thermal-conductivity material composite interlayer is formed by alternately overlapping the high-thermal-conductivity material layer and the metal foil layer.

4. The taper tension high-thermal-conductivity uniform-temperature composite interlayer heat roller as claimed in claim 1 or 2, wherein the heat generating source device is any one of an electric heating plate, an infrared electric heating tube, an electromagnetic heating device and a gas heater.

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