CN217395654U - Orientation control element and forming device - Google Patents

Abstract

The utility model provides an orientation control element and forming device, orientation control element possesses stretching portion, and this stretching portion makes the material follow longitudinal orientation in the direction of advance of material, stretching portion includes from upper reaches to low reaches: a transverse stretch zone, a transverse to longitudinal transition zone, and a longitudinal stretch zone.

Description

Orientation control element and forming device

Technical Field

The present invention relates to an orientation control element for aligning materials (for example, anisotropic heat conductive filler) and a molding apparatus equipped with the same.

Background

In general, the anisotropic filler is aligned in a specific direction to optimize the reinforcing effect in the aligned direction, and for example, the anisotropic thermal conductive material is aligned in a vertical direction to enhance the thermal conductivity in the vertical direction.

Anisotropic materials tend to align naturally along the direction of fluid flow, an effect which has been widely reported and utilized by many researchers. The devices for controlling the orientation of the anisotropic filler are mainly extrusion equipment, injection molding equipment, and molding equipment. In the material obtained by these methods, the anisotropic fillers are aligned in the planar direction, and are difficult to align in the perpendicular direction. Therefore, it is often necessary to obtain a sheet (or column) arranged in the X (or Y) direction, for example, to laminate and mold a plurality of such sheets into a block, to cut the block in the Z direction, and to finally obtain a product arranged in the vertical direction (Z direction).

It can be seen that when using the existing orientation control elements, at least a number of steps of extrusion, lamination, molding, cutting, etc. are required, with a low degree of continuity. And is limited by the operating size of the lamination and the size of the molding die, the size of the block to be produced is limited, and the size of the material after cutting is greatly limited. In addition, the cutting precision is limited, the thickness uniformity of the cut product is difficult to ensure, and the surface roughness is greatly increased.

The statements in the background section are merely technical equivalents which may be known to a person skilled in the art and do not, of course, represent prior art in this field.

SUMMERY OF THE UTILITY MODEL

To solve one or more of the problems in the prior art, an orientation control element is provided, so that flaky materials (such as anisotropic fillers) can be easily oriented longitudinally, process steps can be reduced, the continuous production degree is improved, and the product performance stability is improved.

According to an aspect of the present invention, there is provided an orientation control element provided with a stretching portion that orients a material in a longitudinal direction, characterized in that, in an advancing direction of the material, the stretching portion includes from upstream to downstream: a transverse stretching zone formed as a cavity with an inner diameter gradually decreasing along the advancing direction of the material; a transverse-longitudinal transition zone contiguous with the transverse stretching zone and formed as a cavity of substantially constant internal diameter dimension; and a longitudinal stretching area which is adjacent to the transverse and longitudinal transition area and is formed into a cavity with the inner diameter gradually increasing along the material advancing direction.

In the above-described orientation controlling member, the stretching portion further includes an orientation stabilizing zone located downstream of the longitudinal stretching zone, the orientation stabilizing zone being formed as a cavity having a substantially constant inner diameter dimension.

In the above orientation control member, the material is in the form of flakes, preferably anisotropic fillers, preferably one-dimensional materials such as carbon fibers, glass fibers, ceramic fibers, metal fibers, and the like.

In the above orientation control member, the cross section of the transverse stretching region near the inlet of the stretching portion is one of circular, rectangular, rhombic, elliptical, triangular, trapezoidal, polygonal, or circular, preferably circular, square, or circular; the cross-section of the transverse stretching region adjacent to the transverse-longitudinal transition region is substantially rectangular.

In the above orientation controlling member, the height of the maximum inner diameter of the cavity of the transverse stretching region is 10 to 200mm, preferably 20 to 100 mm; the height of the smallest inner diameter is 0.1-5mm, preferably 0.5-3mm, most preferably 1-2mm, preferably the stroke of the transverse stretching zone is 10-500mm, more preferably 15-100mm, most preferably 20-60 mm.

In the above orientation control member, the cross section of the cavity of the longitudinal-transverse transition zone is substantially rectangular, preferably the cross section shape and size of the cavity are consistent with the cross section shape and size of the transverse stretching zone adjacent to the cavity, and the height of the inner diameter is preferably 0.1-5mm, more preferably 0.5-3mm, and most preferably 1-2 mm; preferably, the stroke of the transverse and longitudinal transition area is 1-20mm, more preferably 5-10 mm.

In the above orientation control member, the cross-sectional size and shape of the inlet of the longitudinal stretching zone is consistent with the cross-sectional size and shape of the outlet of the transverse-longitudinal transition zone, and is preferably rectangular, annular or trapezoidal; the height of the inner diameter at the inlet of the longitudinal stretching zone is 0.1-5mm, preferably 0.5-3mm, and most preferably 1-2mm, the height of the inner diameter at the outlet of the longitudinal stretching zone is 0.12-12.5mm, more preferably 0.6-6mm, and most preferably 1.5-4mm, and preferably, the ratio of the height of the inner diameter at the outlet to the height of the inner diameter at the inlet of the longitudinal stretching zone is 1.2-2.5:1, preferably 1.5 to 2.0: 1, preferably, the longitudinal stretch zone has a stroke of 1 to 20mm, preferably 2 to 5 mm.

In the above orientation control member, the cross-sectional shape and size of the orientation stabilizing zone are in conformity with those at the outlet of the longitudinal stretching zone, and are preferably rectangular; preferably, the height of the inner diameter of the cavity of the orientation stabilizing zone is consistent with the height of the inner diameter of the outlet of the longitudinal stretching zone, and the height of the cavity is 0.12-12.5mm, more preferably 0.6-6mm, and most preferably 1.5-4 mm; preferably, the stroke of the orientation stabilization zone is 1 to 10mm, preferably 2 to 5 mm.

In the above orientation control element, the transverse stretching region, the transverse-longitudinal transition region, the longitudinal stretching region and/or the orientation stabilizing region are of a separate structure or an integrally formed structure, or at least two of them are of an integrally formed structure.

According to another aspect of the present invention, there is provided a molding apparatus including the above-described orientation control element.

The molding device further includes a feeding section and an extruding section.

The molding apparatus further includes an injection molding apparatus or a molding apparatus.

According to the utility model discloses a another aspect provides a heat conduction gasket, and it is obtained by above-mentioned forming device preparation to in this heat conduction gasket, the heat conduction is packed along this heat conduction gasket's thickness direction orientation.

The utility model has the advantages that:

according to the utility model discloses an orientation control component can make lamellar material (for example anisotropic filler) longitudinal orientation easily, can reduce such as technological steps such as range upon range of, mould pressing, cutting, improves product property stability (for example avoided because of range upon range of layering the layering that appears, split phenomenon), has still avoided the product thickness that the cutting arouses inequality, the rough surface phenomenon simultaneously. In addition, the continuous production degree is promoted, products with the width reaching more than meter level, unlimited length and controllable thickness can be prepared, and the preparation of coiled material products with lamellar fillers arranged longitudinally can be realized.

Drawings

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

fig. 1 is a six-sided view and a perspective view of an orientation control element according to the present invention.

Fig. 2A is a sectional view taken along line a-a of fig. 1.

Fig. 2B is a sectional view taken along line B-B of fig. 1.

Fig. 2C is an enlarged schematic view of a portion shown by a circle in fig. 2B.

Fig. 3 is a schematic sectional perspective view taken along line a-a of fig. 1 for explaining the principle of controlling/adjusting the orientation of the materials.

Fig. 4 is a schematic perspective view of the material M.

Fig. 5A is a schematic perspective view of a molding device according to an embodiment of the present invention.

Fig. 5B is a schematic view of the removal of the orientation control member from the molding apparatus.

Fig. 6 is a six-side view of a molding apparatus according to an embodiment of the present invention.

Fig. 7 is a perspective view of an extrusion part of the molding apparatus.

Fig. 8 is a perspective view of the feeding section of the molding apparatus.

Fig. 9 is a schematic perspective view of a molding apparatus according to another embodiment of the present invention.

Fig. 10A is a schematic perspective view of a molding apparatus according to another embodiment of the present invention.

Fig. 10B is a perspective view of an orientation control element of a molding apparatus according to another embodiment of the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for ease of understanding of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In addition, "upstream" and "downstream" in the present invention refer to upstream or downstream in the direction of advance of a fluid or material.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

Fig. 1 to 3 are schematic views of an orientation control element 1 according to a first embodiment of the present invention. Fig. 1 is a six-sided view and a perspective view of an orientation control member 1. Fig. 2A is a sectional view taken along line a-a of fig. 1. Fig. 2B is a sectional view taken along line B-B of fig. 1. Fig. 2C is an enlarged schematic view of a portion shown by a circle in fig. 2B. Fig. 3 is a schematic sectional perspective view taken along line a-a of fig. 1 for explaining the principle of controlling/adjusting the orientation of the materials. Fig. 4 is a schematic perspective view of the material M.

As shown in fig. 4, the material M is a substantially rectangular parallelepiped sheet having six planes: 2 XY planes, 2 YZ planes, and 2 XZ planes. In this embodiment, the length of the material M in the X direction is the largest, the length in the Z direction is the next, and the length in the Y direction is very small (i.e., very thin). As an example of the material M, anisotropic fillers such as one-dimensional carbon fibers, glass fibers, ceramic fibers, metal fibers, and the like used for preparing the thermal conductive pad may be used.

Since the thickness of the material M in the Y direction is very small (thin), the natural state of the material M is a flat state (i.e., a state in which the XZ plane is the bottom surface, which is also called "transverse orientation" or "transverse alignment"), while a standing state (i.e., a state in which the YZ plane or the XY plane is the bottom surface, which is also called "longitudinal orientation" or "longitudinal alignment" or "orientation in the vertical direction") is difficult to achieve, particularly, the longitudinal orientation when the YZ plane is the bottom surface is the most difficult to achieve. In practical applications such as the preparation of a thermal gasket, it is often necessary to orient the material M in the longitudinal direction (the thickness direction of the thermal gasket) of the thermal gasket so as to achieve excellent heat conduction and heat dissipation performance in the longitudinal direction.

It should be noted that XYZ coordinate axes and planes based thereon are shown in fig. 4, and those skilled in the art should understand that these coordinate axes and planes are defined for convenience of description and for facilitating understanding and implementation of the present invention by those skilled in the art, and are not intended to limit the present invention.

As shown in fig. 1 to 3, an orientation control element 1 according to the present invention includes a stretching portion 10, and the stretching portion 10 orients a material M in a fluid in a vertical direction. The stretching section 10 has a fluid inlet 10a and a fluid outlet 10b and comprises, from upstream to downstream in the direction of advance of the material M (or fluid): a transverse stretch zone 101, a transverse-longitudinal transition zone 102, a longitudinal stretch zone 103, and an orientation stabilization zone 104.

As shown in fig. 2, the transverse stretching region 101 is formed as a cavity having an inner diameter gradually narrowing in a direction from the inlet 10a to the outlet 10b (i.e., the inner diameter of the cavity gradually becomes smaller in the material advancing direction) for transversely orienting the randomly arranged material M flowing through the transverse stretching region 101. As shown in fig. 3, during the process of the viscous fluid passing through the transverse stretching region 101, the originally disordered material M in the fluid gradually changes to a natural state during the process of fluid flowing, and takes on an ordered transverse arrangement (i.e., the state that the XZ plane of the material M is the bottom surface and the XZ plane is attached to the surface of the transverse stretching region 101).

The cross-sectional shape of the cavity of the transverse stretching zone 101 near the inlet 10a is substantially square, and the cross-section of the cavity at a position adjacent to a transverse-longitudinal transition zone 102 (which may also be considered as an outlet of the transverse stretching zone 101) described later is substantially rectangular, and the height of the rectangle (i.e., the length of the inner diameter perpendicular to the material advancing direction) is 2 mm. In addition, the stroke or length L1 (see FIG. 2) of transverse stretch zone 101 is 60 mm.

As shown in fig. 2 and 3, after passing through the cross stretch zone 101, the fluid enters the cross-machine transition zone 102. The longitudinal-transverse transition region 102 is formed as a substantially flat cavity. The cross-section of the chamber is substantially rectangular, that is, substantially conforming to the cross-sectional shape and dimensions of the adjacent lateral stretching region 101 to ensure smooth flow of fluid. The height of the inner diameter of the cross section of the chamber (i.e. the length of the inner diameter perpendicular to the direction of advance of the material) was 2 mm. In addition, in the present invention, unless otherwise stated, the height of the inner diameter of the cavity is the length of the inner diameter in the direction perpendicular to the material advancing direction.

In addition, the stroke or length L2 (see fig. 2) of the longitudinal-transverse transition region 102 is 5 mm. As shown in fig. 3, during the fluid flow through the transverse-longitudinal transition region 102, the material, such as anisotropic filler, is aligned in the transverse direction and is sufficiently ready for the longitudinal transition region to achieve longitudinal alignment of the filler.

As shown in fig. 2 and 3, the fluid flows through the longitudinal-transverse transition zone 102 and then into the longitudinal stretching zone 103.

The longitudinal stretching zone 103 is formed as a cavity with an inner diameter gradually increasing along the material advancing direction. The size and shape of the cross section of the cavity of the longitudinal stretching region 103 adjacent to the aforementioned transversal-longitudinal transition region 102 is identical to the size and shape of the cross section of the transversal-longitudinal transition region 102. In other words, the cross-sectional shape and the inner diameter dimension at the inlet of the longitudinal stretching section 103 substantially coincide with the cross-sectional shape and the dimension of the inner diameter at the outlet of the longitudinal-transverse transition section 102 to ensure smooth flow of fluid, and thus are rectangular in this embodiment.

The ratio of the minimum height to the maximum height of the inner diameter of the longitudinal stretching zone 103 is 1.2 to 2.5, preferably 1.5 to 2.0: 1. in other words, the ratio of the height of the inner diameter at the most downstream (or outlet) of the longitudinal stretching zone 103 to the height of the inner diameter at the most upstream (or inlet) is 1.2-2.5:1, preferably 1.5-2.0: 1.

in this embodiment, the longitudinal stretch zone 103 has a maximum inner diameter height of 5mm and a minimum inner diameter height of 2 mm. The stroke or length L3 (see fig. 2) of longitudinal stretch zone 103 is 5 mm.

As shown in fig. 3, during the passage through the longitudinal stretching zone 103, the viscous fluid may be stretched in the longitudinal direction due to the sudden increase in longitudinal dimension, and the material or filler M may gradually become longitudinally aligned with the viscous fluid. More specifically, in this embodiment, the materials M are arranged in a longitudinal direction with the XY plane as a bottom surface, that is, in a Z direction.

As shown in fig. 2 and 3, the fluid enters the orientation stabilization zone 104 after passing through the longitudinal stretch zone 103. The orientation stabilization zone 104 is a cavity having a substantially constant inner diameter. The cross-sectional shape and size of the cavity of the orientation stabilization zone 104 is consistent with that of the adjoining longitudinal stretching zone 103. Therefore, the cross-sectional shape of the cavity of the orientation stabilization zone 103 in this embodiment is substantially rectangular, the inner diameter dimension of the cavity substantially coincides with the inner diameter dimension of the cavity of the stretching zone 103 at the adjacent position, and the inner diameter height is 5 mm.

In addition, in order to more secure the effect of the longitudinal orientation, the stroke or length L4 (see fig. 2) of the orientation stabilizing zone was 5 mm.

According to the orientation control element 1, the oriented arrangement (specifically, longitudinal arrangement) of the materials M in the fluid can be realized, samples (such as heat conducting gaskets) of the materials (such as anisotropic fillers) oriented along the vertical direction (longitudinal direction) can be directly prepared, the process steps are reduced, the phenomena of layering, splitting, uneven thickness, rough surface and the like are avoided, the continuous production degree is improved, the product performance stability and the mechanical performance are improved, and the preparation of coiled products of the anisotropic materials arranged along the longitudinal direction can be realized.

In the above-described orientation controlling member 1, the transverse stretching region 101, the transverse-longitudinal transition region 102, the longitudinal stretching region 103, and the orientation stabilizing region 104 are formed as a continuous through-going integral structure. However, the components may be formed separately (or formed partially integrally and partially separately) and then assembled into a continuous through-structure. For example, the transverse stretching region 101 is formed integrally with the transverse-longitudinal transition region 102, while the longitudinal stretching region 103 and the orientation stabilizing region 104 are formed as separate bodies.

In addition, the orientation stabilizing zone 104 may also be omitted. In this case, the stroke of the longitudinal stretching region 103 may be appropriately extended as long as it can ensure that the material M in the fluid can be stably longitudinally oriented.

In the above-described orientation controlling member 1, the cross section of the inlet of the transverse stretching region 101 is substantially square. But may also be circular, rectangular, diamond shaped, oval, triangular, trapezoidal, polygonal, or annular (racetrack shaped). Among them, circular, square, and annular (race track shape) are preferable.

The size, shape, etc. of each region/cavity are not limited to those of the above embodiments, and can be adjusted according to specific needs.

Preferably, the height of the maximum inner diameter of the cavity of the transverse stretching zone 101 is 10 to 200mm, preferably 20 to 100 mm; the height of the smallest inner diameter is 0.1-5mm, preferably 0.5-3mm, most preferably 1-2mm, and preferably the stroke L1 of the transverse stretching zone 101 is 10-500mm, more preferably 15-100mm, most preferably 20-60 mm.

In addition, the stroke L2 of the longitudinal-transverse transition region 102 is preferably 1-20mm, more preferably 5-10 mm.

Preferably, the outlet cross-sectional shape of the longitudinal stretching region 103 is at least one of a rectangle, a loop (racetrack shape), and a trapezoid, preferably a rectangle.

Preferably, the stroke L3 of longitudinal stretch zone 103 is 1 to 20mm, preferably 2 to 5 mm. The stroke L4 of the orientation stabilization zone is preferably 1 to 10mm, preferably 2 to 5 mm.

When the viscous fluid containing the material M (e.g., graphene nanoplatelets, which are flake-like anisotropic heat conductive fillers) sequentially flows through the transverse stretching region, the transverse-longitudinal transition region, the longitudinal stretching region (and the orientation stabilizing region in the case of having the orientation stabilizing region) of the orientation control element, the randomly arranged material M will first turn into transverse orientation and then gradually become longitudinal orientation until almost all of the longitudinal orientation, thereby enabling the material M to be in a highly longitudinally oriented state in the sheet (e.g., heat conductive pad) finally coming out of the longitudinal stretching region or the orientation stabilizing region, and thus, the sheet is excellent in performance (e.g., heat conductivity) in the longitudinal direction.

If desired, the orientation control element 1 of the present invention can be assembled with other devices/components to form a molding device, so as to further simplify the process steps and facilitate the direct preparation of highly oriented samples (e.g., thermal pads) of materials (e.g., anisotropic fillers) in the longitudinal direction. As an example, the present invention provides a molding apparatus 100 including the above-described orientation control member 1, the extrusion section 20, and the feeding section 30. Fig. 5A is a schematic perspective view of the molding apparatus 100 of the present invention. Fig. 5B is a schematic view of the removal of the orientation control member 1 from the molding apparatus 100. Fig. 6 is a six-sided view of the molding apparatus 100. Fig. 7 is a perspective view of the extruding part 20. Fig. 8 is a perspective view of the feeding portion 30.

As shown in fig. 5B, the orientation control member 1 (stretching portion 10) may be detachably connected to the extruding portion 20 using a fastening member 401 such as an O-ring, a flange seal, or the like.

The shape and the inner cavity of the extrusion part 20 are cylindrical. Of course, other shapes such as rectangular parallelepiped, etc. are also possible. The diameter or side length of the cross section of the inner cavity and the length are not particularly limited. The extrusion mode can be single screw extrusion, double screw extrusion, three screw extrusion or no screw extrusion.

The feeding section 30 may employ a feeding device commonly used in the art. The feeding mode can be piston feeding, double-wrist feeding or double-cone feeding. The sizes and dimensions of the feed portion 30 and the feed port 301 are not particularly limited and may be appropriately selected as needed.

In the exemplary molding apparatus 100, the feeding section 30, the extruding section 20, and the orientation controlling member 1 are separately formed and then sequentially connected in the material advancing direction to be assembled as a single body. However, the present invention is not limited to this, and two of the components may be integrally formed and then assembled with the other component to form a final molding apparatus, or the feeding unit 30, the extruding unit 20, and the orientation controlling member 1 may be integrally formed to form a final molding apparatus.

In the molding apparatus 300 (fig. 9) of an embodiment, the main differences from the molding apparatus 200 are: the feeding part 30 is formed as an integral structure with the extruding part 20, and the feeding part 30 is formed at one side of one end of the extruding part 20.

In another embodiment of the molding apparatus 400 (fig. 10), the main differences from the molding apparatus 200 are: the feeding part 30, the extruding part 20 and the orientation controlling member 1 are integrally formed, and the feeding part 30 is formed inside one end part of the extruding part 20, so that the profile of the molding apparatus 400 is more simplified, and complicated assembling steps are saved.

The above describes an example of connecting the orientation control element to the extrusion device to form the molding apparatus of the present invention. Without being limited thereto, the orientation control member of the present invention may be connected to an injection molding machine or a molding machine to form the molding apparatus of the present invention.

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 in the foregoing embodiments, 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 (46)

1. An orientation control element provided with a stretching portion that orients a material in a longitudinal direction, characterized in that it comprises, from upstream to downstream in the direction of advance of the material:

a transverse stretching zone formed as a cavity with an inner diameter gradually decreasing along the advancing direction of the material;

a transverse-longitudinal transition zone contiguous with the transverse stretching zone and formed as a cavity of substantially constant internal diameter dimension; and

and the longitudinal stretching area is adjacent to the transverse and longitudinal transition area and is formed into a cavity with the inner diameter gradually increasing along the material advancing direction.

2. The orientation control element of claim 1 wherein the stretch section further comprises an orientation stabilization zone downstream of the longitudinal stretch zone, the orientation stabilization zone forming a cavity having a substantially constant inner diameter dimension.

3. An orientation control element according to claim 1, wherein the material is in the form of a sheet.

4. The orientation control element of claim 1 wherein the material is an anisotropic filler.

5. The orientation control element of claim 4 wherein the anisotropic filler is a one-dimensional material.

6. The orientation control element of claim 5 wherein the anisotropic filler is carbon fiber, glass fiber, ceramic fiber, metal fiber.

7. The orientation control element of claim 1, wherein the transverse stretch zone has a cross-section near an entrance of the stretch that is one of circular, rectangular, diamond-shaped, oval, triangular, trapezoidal, polygonal, or annular; the cross-section of the transverse stretching region adjacent to the transverse-longitudinal transition region is substantially rectangular.

8. Orientation control element according to claim 7, characterized in that the transverse stretching zone is circular, square or annular in cross-section near the entrance of the stretching section.

9. The orientation control member according to claim 1, wherein the height of the cavity of the transverse stretching region where the inner diameter is largest is 10-200 mm; the height of the minimum part of the inner diameter is 0.1-5 mm.

10. The orientation control element according to claim 9, wherein the height of the cavity of the transverse stretching region where the inner diameter is largest is 20-100 mm.

11. Orientation control element according to claim 9, wherein the height of the cavity of the transverse stretching zone at the smallest inner diameter is 0.5-3 mm.

12. The orientation control element of claim 11, wherein the height of the cavity of the transverse stretching region at the smallest inner diameter is 1-2 mm.

13. Orientation control element according to claim 9, wherein the stroke of the transverse stretching zone is 10-500 mm.

14. Orientation control element according to claim 13, wherein the stroke of the transverse stretching zone is 15-100 mm.

15. Orientation control element according to claim 14, wherein the stroke of the transverse stretching zone is 20-60 mm.

16. The orientation control element of claim 1, wherein the cavity of the longitudinal-transverse transition region is substantially rectangular in cross-section.

17. The orientation control element of claim 16, wherein the cross-sectional shape and size of the cavity of the longitudinal-transverse transition region is identical to the cross-sectional shape and size of the transverse stretching region adjacent thereto.

18. The orientation control element of claim 17, wherein the cavity of the longitudinal-transverse transition region has an inner diameter height of 0.1-5 mm.

19. The orientation control element of claim 18, wherein the height of the inner diameter of the cavity of the longitudinal-transverse transition zone is 0.5-3 mm.

20. The orientation control element of claim 19, wherein the height of the inner diameter of the cavity of the longitudinal-transverse transition zone is 1-2 mm.

21. The orientation control element of claim 17, wherein the longitudinal-transverse transition zone has a stroke of 1-20 mm.

22. Orientation control element according to claim 21, wherein the longitudinal and transverse transition has a stroke of 5-10 mm.

23. The orientation control element of claim 1 wherein the cross-sectional size and shape of the entrance to the longitudinal stretching zone is consistent with the cross-sectional size and shape of the exit from the cross-longitudinal transition zone.

24. The orientation control element of claim 23 wherein the entrance to the longitudinal stretching region is rectangular, circular or trapezoidal in cross-section.

25. The orientation control element of claim 24, wherein the height of the inner diameter at the entrance of the longitudinal stretching region is 0.1-5 mm.

26. The orientation control element of claim 25, wherein the height of the inner diameter at the entrance of the longitudinal stretching region is 0.5-3 mm.

27. The orientation control element of claim 26 wherein the height of the inner diameter at the entrance of the longitudinal stretching region is 1-2 mm.

28. The orientation control element of claim 27 wherein the height of the inner diameter at the exit of the longitudinal stretching zone is 0.12-12.5 mm.

29. The orientation control element of claim 28, wherein the height of the inner diameter at the exit of the longitudinal stretching zone is 0.6-6 mm.

30. The orientation control element of claim 29, wherein the height of the inner diameter at the exit of the longitudinal stretching zone is 1.5-4 mm.

31. The orientation control element of claim 23, wherein the ratio of the height of the inner diameter at the exit to the height of the inner diameter at the entrance of the longitudinal stretching zone is 1.2-2.5: 1.

32. the orientation control element of claim 31, wherein the ratio of the height of the inner diameter at the exit to the height of the inner diameter at the entrance of the longitudinal stretching zone is 1.5-2.0: 1.

33. the orientation control element of claim 23 wherein the longitudinal stretch zone has a stroke of 1-20 mm.

34. The orientation control element of claim 33, wherein the longitudinal stretch zone has a stroke of 2-5 mm.

35. The orientation control element of claim 1 wherein the cross-sectional shape and size of the orientation stabilization zone is consistent with the cross-sectional shape and size at the exit of the longitudinal stretching zone.

36. The orientation control element of claim 35, wherein the orientation stabilization zone is rectangular in cross-section.

37. The orientation control element according to claim 35, wherein the height of the inner diameter of the cavity of the orientation stabilization zone is consistent with the height of the inner diameter of the outlet of the longitudinal stretching zone, and the height of the inner diameter is 0.12-12.5 mm.

38. The orientation control element of claim 37, wherein the inner diameter is 0.6-6mm high.

39. The orientation control element of claim 38, wherein the inner diameter is 1.5-4mm high.

40. The orientation control element of claim 35, wherein the orientation stabilization zone has a stroke of 1-10 mm.

41. The orientation control element of claim 40 wherein the orientation stabilization zone has a stroke of 2-5 mm.

42. Orientation control element according to claim 1, wherein the transverse stretching zone, the transverse-longitudinal transition zone, the longitudinal stretching zone and/or the orientation stabilization zone are of split construction or of integral construction, or at least two of them of integral construction.

43. A molding apparatus comprising the orientation control member according to any one of claims 1 to 42.

44. The molding device according to claim 43, further comprising a feeding section and an extrusion section.

45. The molding device according to claim 43, further comprising an injection molding device or an embossing device.

46. A thermal gasket produced by the molding apparatus according to claim 43, wherein the thermal filler is oriented in the thickness direction of the thermal gasket.

Images