Device for rapidly curing and forming carbon / carbon cylinder

Abstract

The utility model discloses a carbon / carbon cylinder rapid curing forming device, and relates to the technical field of carbon / carbon curing forming. The device comprises a support frame, a rolling shaft, a forming die and a heater, one end of the rolling shaft is connected with an adapter, and the end part of the adapter is provided with a hand wheel; according to the scheme, through the forming die installed on the rolling shaft and the heater installed on the heater support for bearing, forming and curing of the wound or wound cylindrical product can be carried out at the same time, and the production cycle of curing of the product is greatly shortened; a simple heating system is adopted for heating and curing, so that the investment of large curing equipment is reduced, and the production cost is reduced; and the heating system comprises a heater and a heater bracket, is close to the product, can realize winding or solidification of one layer by one layer, basically has no flowing time of the resin, and can effectively control the uniformity of the resin content of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon / carbon solidification molding, in particular to a device for rapid solidification molding of a carbon / carbon tube. Background Art

[0002] Rolled (wound) cylindrical products mainly refer to products made of carbon felt, graphite felt, carbon cloth, and carbon filament as raw materials and resin as adhesive. The raw materials are impregnated with resin and then formed by winding and winding processes. After curing, carbonization, and high-temperature treatment, the products are obtained. During the curing process, the resin will flow from the high point of the product to the low point due to the influence of gravity, resulting in different resin content in different parts of the product and uneven density of the final product.

[0003] At present, a rotary oven is often used to solve this problem, that is, a rotating device is added in the oven, and the product is cured while rotating. For example, in the solution disclosed in the patent application document with publication number CN205398903, an auxiliary rotating structure is added to the static curing furnace, and the product rotates smoothly and continuously during the curing process, thereby effectively solving the problem of uneven density of graphite felt winding products caused by resin flow. However, since graphite felt is a thermal insulation material, it is difficult to transfer heat from the outer circle to the inner circle after multi-layer winding and forming and then curing. It takes a long time for the inner circle product to reach the curing temperature.

[0004] In summary, in order to solve the problem of uneven density of carbon / carbon tubes caused by resin flow during the curing process, a rotating device is often used. This method increases the cost of modifying the oven, and due to heat transfer problems, in order to ensure that the rolled (wound) products are completely cured, the process cycle is long. Therefore, this technical solution proposes a device for rapid curing of carbon / carbon tubes. Utility Model Content

[0005] The utility model provides a carbon / carbon tube rapid solidification molding device, which can not only realize the rapid solidification molding of rolled (wrapped) tube-shaped products, but also effectively solve the problem of poor product uniformity caused by resin flow during the solidification process of such products.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a carbon / carbon tube rapid solidification molding device, comprising a support frame;

[0008] A roller is transversely mounted on the upper part of the support frame through a driven chuck chuck, and a cylindrical forming mold for winding or wrapping products is coaxially mounted on the roller;

[0009] A heater bracket is fixedly installed transversely at the lower part of the support frame; heaters are evenly installed on the heater bracket.

[0010] Furthermore, one end of the roller is connected to an adapter, and a hand wheel is installed at the end of the adapter.

[0011] Furthermore, the heater bracket is located at the bottom of the molding die and the spacing can be adjusted.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) Through the molding die mounted on the roller and the heater mounted on the heater bracket, the molding and curing of the rolled or wound cylindrical product can be carried out simultaneously, which greatly shortens the production cycle of curing of such products;

[0014] (2) A simple heating system is used for heating and curing, which reduces the investment in large-scale curing equipment and reduces production costs;

[0015] (3) The heating system includes a heater and a heater bracket, which are close to the product and can be wound or wrapped layer by layer for curing. The resin has almost no time to flow, and the uniformity of the resin content of the product can be effectively controlled.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural schematic diagram of a carbon / carbon tube rapid solidification molding device of the utility model;

[0019] Figure 2 for Figure 1 Structural diagram from perspective A;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-support frame, 2-driven chuck, 3-molding mold, 4-roller, 5-adapter, 6-handwheel, 7-product, 8-heater, 9-heater bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that terms such as "lateral", "lower", "one end", "end", and "bottom" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] See also Figure 1-2 As shown, a carbon / carbon tube rapid solidification molding device of the utility model comprises a support frame 1;

[0025] A roller 4 is transversely mounted on the upper part of the support frame 1 through a driven chuck 2, and a cylindrical forming mold 3 for winding or wrapping a product 7 is coaxially mounted on the roller 4;

[0026] A heater bracket 9 is fixedly installed horizontally at the lower part of the support frame 1; heaters 8 are evenly installed on the heater bracket 9; the heater 8 specifically adopts a resistive heater such as a heating tube, a resistance wire heater, a quartz tube heater, etc.; this specific embodiment only lists a limited number of heater forms, and of course other forms that can be applicable to the scene of this technical solution and produce the same effect and purpose also belong to the protection scope of this technical solution;

[0027] One end of the roller 4 is connected to an adapter 5, and a hand wheel 6 is installed at the end of the adapter 5;

[0028] The heater bracket 9 is located at the bottom of the molding die 3 and can be adjusted in spacing;

[0029] The device of the present technical solution is mainly composed of three parts: a forming mold for winding or wrapping cylindrical products, which can rotate based on rollers and is used for winding or wrapping products; a heating system that provides heat for product curing; and a bracket that is used to support the product mold and the heating system.

[0030] The working principle of this technical solution is:

[0031] 1. Fix the product forming mold on the roller;

[0032] 2. Attach the semi-finished product coated with resin to the mold, and adjust the position of the heater and the semi-finished product to a reasonable fixed distance. This distance can be adjusted according to different products, and the distance range is 10mm-500mm;

[0033] 3. The heater is powered on. The heater temperature can be set according to different products and is adjustable between 200℃ and 400℃. The hand wheel starts to roll (wind) the cylindrical product. The hand speed is based on the complete curing of the product.

[0034] 4. While winding, adjust the distance between the heater and the semi-finished product through the limit groove and the lifting and jacking mechanism (not shown in the figure) to maintain a fixed distance;

[0035] 5. After the winding and curing is completed, the product and the molding mold are disassembled;

[0036] 6. Demoulding, the product enters the next process.

[0037] Embodiment 1:

[0038] A carbon / carbon tube rapid solidification molding device, the use of which comprises the following steps:

[0039] (1) Fix the φ500mm*1200mm forming mold on the roller;

[0040] (2) Attach a graphite felt coated with phenolic resin with a width of 1000 mm and a thickness of 10 mm to the mold, and adjust the distance between the heater and the graphite felt to 50 mm;

[0041] (3) Turn on the heater, turn the hand wheel to wind, and touch the heated part of the graphite felt to see that it is hardened, which means the curing is complete;

[0042] (4) While winding, adjust the distance between the heater and the outer graphite felt through the limit groove and the lifting mechanism to ensure that the distance is maintained at 50 mm;

[0043] (5) After 4 hours, the graphite felt winding and curing are completed, and the product is a hard felt tube with a wall thickness of 80 mm. The product and the molding mold are disassembled;

[0044] (6) Demoulding and the product is transferred to the next process.

[0045] Comparative Example 1:

[0046] The same specifications of products are prepared by winding first and then rotating and curing. The steps are as follows:

[0047] (1) Fix the φ500mm*1200mm forming mold on the roller;

[0048] (2) At room temperature, a graphite felt coated with phenolic resin with a width of 1000 mm and a thickness of 10 mm is wound on a molding die by hand using a hand wheel into a felt tube with a wall thickness of 80 mm. The outermost layer of the wound product is fixed with carbon fiber, which takes about 1.5 hours;

[0049] (3) placing the wound product into a rotary oven for curing;

[0050] (4) Set the curing temperature to 200°C, heat up for 10 hours, and keep warm for 2 hours;

[0051] (5) Curing is completed. The total process time of this method is 13.5 hours.

[0052] By comparison, we can see that

[0053] For the same size of molding molds, graphite felt coated with the same phenolic resin, and wound into felt tubes with the same wall thickness, the rapid curing molding device using the present technical solution can simultaneously carry out the molding and curing of the wound or wrapped cylindrical products, compared with the traditional method of first winding and then rotating and curing, thereby greatly shortening the production cycle of curing of such products; and the present technical solution has a simple structure, does not require the investment of large-scale curing equipment, and reduces production costs; because the heater bracket and the heater are close to the product, it can achieve curing of one layer at a time when winding or wrapping, and the resin has basically no time to flow, which can effectively control the uniformity of the resin content of the product.

[0054] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for rapid solidification and molding of carbon / carbon tubes, characterized in that: It comprises a support frame (1); A roller (4) is transversely mounted on the upper part of the support frame (1) via a driven chuck (2), and a cylindrical forming mold (3) for winding or wrapping a product (7) is coaxially mounted on the roller (4); A heater bracket (9) is fixedly installed transversely at the lower part of the support frame (1); heaters (8) are evenly installed on the heater bracket (9).

2. The device for rapid solidification and molding of carbon / carbon tube according to claim 1, characterized in that: One end of the roller (4) is connected to an adapter (5), and a hand wheel (6) is installed at the end of the adapter (5).

3. The device for rapid solidification and molding of carbon / carbon tube according to claim 1, characterized in that: The heater bracket (9) is located at the bottom of the molding die (3) and can be spaced to be adjusted.

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