Mold and compression molding method for fabric prepreg composite material cylinder
A composite material and prepreg technology, which is applied in the field of fabric prepreg compression molding composite material cylinder, achieves the effect of a feasible and effective manufacturing method and reducing manufacturing cost
Active Publication Date: 2020-12-25
INNER MONGOLIA AEROSPACE HONGGANG MACHINERY
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- Application Information
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a mold for a fabric prepreg composite material cylinder, so as to solve the problem of low-cost manufacturing of a fabric prepreg composite material cylinder with a flange structure
Method used
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Embodiment Construction
[0041] The present invention will be described in detail below in conjunction with specific embodiments.
[0042] The flange cylindrical part 2 of the present embodiment, as attached figure 1 and 2 As shown, the main body of the product 2 is cylindrical, and the upper end of the product 2 extends toward the center to form a circular ring, and a plurality of flange holes are evenly distributed on the circular ring.
[0043] Such as Figure 13 As shown, the mold used is mainly divided into an upper mold 9, four female molds 10, a flange end pressure ring 11, a demoulding ring 3, a male mold 1, a cavity 12, and a lower mold 4. Wherein, the stripping ring 3 is used in conjunction with the male mold 1, and the stripping ring 3 is positioned by the cylindrical structure of the male mold 1, such as image 3 As shown, the two are connected by fastening bolts 13, the demoulding ring 3 and the male mold 1 are jointly used to form the inner surface of the product, and the demoulding r...
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The invention relates to a mold of fabric prereg composite cylinders and a compression molding method. The mold comprises a male mold, a lower mold, an upper mold and a female mold; a bottom cylinderand a top cylinder of the male mold are inserted in inner holes of the lower mold and the upper mold, the lower mold and the upper mold are of symmetric structures, the female mold is divided into multiple pieces and is of a cylindrical female mold structure formed by multiple same structures, the space formed through the inner molded surface of the female mold, the middle cylindrical outer moldedface of the male mold, the upper molded face of a mold releasing ring and the lower molded face of a flange end face pressing ring forms a mold cavity for making a product. A hot press machine and the dedicated mold are adopted for finishing product preparing, investment of equipment such as a winding machine, an oven or a hot press tank can be avoided, the product manufacturing cost is reduced while the product property stability is improved, low-cost large-batch manufacturing of fabric prereg composite cylinders can be achieved, and particularly the simple and effective manufacturing way isprovided for some high-temperature and high-load formed composite cylindrical parts.
Description
technical field [0001] The invention relates to a composite material cylinder forming method, in particular to a fabric prepreg molding composite material cylinder method. Background technique [0002] Cylindrical structures are one of the most widely used structures of composite materials, and cylindrical parts with flanges are usually used to connect other components, such as rocket composite skirts, compartments and other structures. Compared with metal materials such as aluminum alloys and titanium alloys, composite cylindrical parts have the advantages of obvious weight reduction and good matching with composite parts, and will gradually replace metal materials as the main direction of the connection structure of composite parts. [0003] Currently, continuous filament winding, RTM and thermal / hydraulic tank processes are commonly used to form composite tubular members. Continuous fiber winding molding is a method in which fiber bundles are wound on a mandrel by a wind...
Claims
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IPC IPC(8): B29C70/34B29C70/54B29C33/00
CPCB29C33/00B29C70/34B29C70/54
Inventor 杨学斌胡伟徐可张鹏飞张泽茹张强
Owner INNER MONGOLIA AEROSPACE HONGGANG MACHINERY