Dry yarn winding forming method for pressure container

Abstract

The invention discloses a dry yarn winding forming method for a pressure container. The method comprises the following steps: 1. carrying out outer surface treatment on an inner container of the pressure container, namely coating an adhesive uniformly on the outer surface of the inner container of the cleaned pressure container; 2. carrying out dry yarn winding forming, namely winding on the outer surface of the inner container of the pressure container in a winding mode of alternative longitudinal winding and hoop winding, and carrying out continuous transition between the longitudinal winding and hoop winding under the condition that fibers are not cut off; 3. carrying out loose-proof strapping treatment on the port of a dry yarn winding forming body; 4. carrying out spraying forming treatment on a protective layer at the surface layer of the dry yarn winding forming body; and 5. placing and solidifying at room temperature. The dry yarn winding forming method for the pressure container provided by the invention has the advantages of reasonable design, simplicity and convenience in operation, convenience in control and good winding forming effect; and because an impregnation process and a solidifying process link are omitted, a plurality of practical problems, such as complex forming technology, longer production cycle, higher cost, no large scale of industrial production andthe like, of the existing winding forming process can be solved effectively.

Description

technical field

[0001] The invention belongs to the technical field of composite material forming technology, and in particular relates to a dry yarn winding forming method for pressure vessels. Background technique

[0002] Composite material pressure vessels have the advantages of light weight, high strength, and low manufacturing cost. At the same time, they have the fatigue failure mode of leakage before blasting that metal vessels do not have, and have significant advantages in terms of safety. In the traditional composite material container, the fiber-impregnated resin is wound on the surface of the inner tank material to prepare the composite material layer. The resin acts as a matrix material to solidify the fiber into a whole and transmit the load. The fiber acts as a reinforcement to bear most of the pressure load. , the combined effect of fiber and resin properties makes the composite material have excellent properties. Composite containers prepared by traditiona...

Examples

Embodiment 1

[0047] Firstly, according to the structure and size of the inner tank of the pressure vessel to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the fiber dry yarn used for winding, the winding forming process parameters in the dry yarn winding forming process were manually designed and compared. Input the designed winding forming process parameters into the control host of the winding machine, and at the same time compile the combined angle gradual change control program according to the converted winding forming process parameters. According to the continuous winding requirements, the control host will change the combined angle gradually The control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the carbon fiber winding process. Secondly, prepare epoxy resin adhesive according to the ratio of epoxy resin (618): triethylenetetramine=100: ...

Embodiment 2

[0051] In this embodiment, first, according to the structure and size of the pressure vessel liner to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the dry fiber yarn used for winding, the winding during the winding and forming process of the dry yarn is artificially designed. The forming process parameters and the designed winding forming process parameters are input into the control host of the winding machine. At the same time, the combined angle gradient control program is compiled according to the converted winding forming process parameters. The combined angle gradient control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the aramid fiber winding process. Secondly, prepare the polyurethane adhesive according to the ratio of polyurethane: polyurethane rubber vulcanizing agent (MOCA)=90: 30~38 according to the mass ratio; clean the...

Embodiment 3

[0053]In this embodiment, first, according to the structure and size of the pressure vessel liner to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the dry fiber yarn used for winding, the winding during the winding and forming process of the dry yarn is artificially designed. The forming process parameters and the designed winding forming process parameters are input into the control host of the winding machine. At the same time, the combined angle gradient control program is compiled according to the converted winding forming process parameters. The combined angle gradient control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the PBO fiber winding process. Secondly, prepare polyurethane adhesive according to the mass ratio of unsaturated polyester: MOCA=90:5; then clean the outer surface of the pressure vessel liner 1 (specifically po...

technical field

[0001] The invention belongs to the technical field of composite material forming technology, and in particular relates to a dry yarn winding forming method for pressure vessels. Background technique

[0002] Composite material pressure vessels have the advantages of light weight, high strength, and low manufacturing cost. At the same time, they have the fatigue failure mode of leakage before blasting that metal vessels do not have, and have significant advantages in terms of safety. In the traditional composite material container, the fiber-impregnated resin is wound on the surface of the inner tank material to prepare the composite material layer. The resin acts as a matrix material to solidify the fiber into a whole and transmit the load. The fiber acts as a reinforcement to bear most of the pressure load. , the combined effect of fiber and resin properties makes the composite material have excellent properties. Composite containers prepared by traditiona...

Examples

Embodiment 1

[0047] Firstly, according to the structure and size of the inner tank of the pressure vessel to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the fiber dry yarn used for winding, the winding forming process parameters in the dry yarn winding forming process were manually designed and compared. Input the designed winding forming process parameters into the control host of the winding machine, and at the same time compile the combined angle gradual change control program according to the converted winding forming process parameters. According to the continuous winding requirements, the control host will change the combined angle gradually The control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the carbon fiber winding process. Secondly, prepare epoxy resin adhesive according to the ratio of epoxy resin (618): triethylenetetramine=100: ...

Embodiment 2

[0051] In this embodiment, first, according to the structure and size of the pressure vessel liner to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the dry fiber yarn used for winding, the winding during the winding and forming process of the dry yarn is artificially designed. The forming process parameters and the designed winding forming process parameters are input into the control host of the winding machine. At the same time, the combined angle gradient control program is compiled according to the converted winding forming process parameters. The combined angle gradient control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the aramid fiber winding process. Secondly, prepare the polyurethane adhesive according to the ratio of polyurethane: polyurethane rubber vulcanizing agent (MOCA)=90: 30~38 according to the mass ratio; clean the...

Embodiment 3

[0053]In this embodiment, first, according to the structure and size of the pressure vessel liner to be wound and the performance and weight requirements of the product to be formed, combined with the bulk performance of the dry fiber yarn used for winding, the winding during the winding and forming process of the dry yarn is artificially designed. The forming process parameters and the designed winding forming process parameters are input into the control host of the winding machine. At the same time, the combined angle gradient control program is compiled according to the converted winding forming process parameters. The combined angle gradient control program realizes the continuous transition between longitudinal winding and hoop winding, ensuring the continuity of the PBO fiber winding process. Secondly, prepare polyurethane adhesive according to the mass ratio of unsaturated polyester: MOCA=90:5; then clean the outer surface of the pressure vessel liner 1 (specifically po...

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