CN216831888U

CN216831888U - Pressurizing device for forming box-shaped structure composite material

Info

Publication number: CN216831888U
Application number: CN202122494749.4U
Authority: CN
Inventors: 董淑强; 刘玉龙; 那婷
Original assignee: Shanghai Langdan Composite Material Technology Co ltd
Current assignee: Shanghai Langdan Composite Material Technology Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-06-28
Anticipated expiration: 2031-10-15

Abstract

A pressurizing device for molding a composite material with a box-shaped structure comprises a metal box body, a threaded rod, a metal outer vertical surface, expandable silicon rubber and a fixed corner piece. The metal box body is connected with the metal outer vertical surface through a fixed corner piece, and expandable silicon rubber is poured inside the metal box body. The bottom surface of the metal box body is provided with a threaded rod, so that later-stage demolding is facilitated. When a composite material product with a box body structure is formed, a pressurizing device consisting of a metal box body, a metal outer vertical surface and expandable silicon rubber is placed in the product, the expandable silicon rubber expands under the action of heat, so that the metal outer vertical surface is pushed to uniformly apply pressure to a forming surface of the composite material, after solidification, the temperature is reduced, the metal outer vertical surface rebounds under the action of the expandable silicon rubber, finally, the die is removed by utilizing a threaded rod on the metal box body, and the pressurizing device can be repeatedly formed and used.

Description

Pressurizing device for forming box-shaped structure composite material

Technical Field

The utility model relates to a box type structure combined material makes technical field, specifically is a box type structure combined material is pressure device for shaping.

Background

The silicone rubber expansion molding is a common composite material molding method, realizes curing and pressurization of the composite material through the thermal expansion of the silicone rubber, and can replace the defect that external pressure is difficult to uniformly transmit in other molding processes particularly on manufacturing composite material products with box-shaped structures and multi-cavity structures. However, the silicon rubber is a soft mold material, and a product formed by expanding and pressurizing the silicon rubber has an uneven surface and uncontrollable dimensional precision.

The utility model relates to a box-shaped structure is pressure device for combined material shaping when performance silicon rubber inflation pressurization advantage, has improved the roughness and the size precision on product surface.

Disclosure of Invention

The utility model aims at improving the pressing surface flatness and improving the size precision of products when realizing the pressurization of silicon rubber expansion, and the provided pressurizing device for the molding of box-shaped structure composite materials.

A pressing device for molding a composite material having a box-like structure, comprising:

the metal box body, the threaded rod, the metal outer vertical surface, the expandable silicon rubber and the fixed corner piece; the metal box body is connected with the metal outer vertical surface through a fixed corner piece, and expandable silicon rubber is poured inside the metal box body; the bottom surface of the metal box body is provided with a threaded rod, so that later-stage demolding is facilitated.

The outer contour of the metal box body follows the profile of the product, and the inner surface of the metal box body is subjected to sand blasting or anodic oxidation treatment.

The two open sides of the metal box body and the intersecting surface of the metal outer vertical surface and the metal box body are processed into an oblique angle with a certain angle.

A plurality of conical structure grooves with small outer parts and large inner parts are arranged on the inner surface of the outer vertical surface of the metal and are subjected to sand blasting or anodic oxidation treatment.

After the expandable silicone rubber is cured, the metal box body and the metal outer vertical surface are integrated, and the fixed corner piece is removed.

In a preferred embodiment of the present invention, the metal case is treated by sandblasting or anodizing.

In a preferred embodiment of the present invention, the expandable silicone rubber is a room temperature vulcanized two-component silicone rubber.

In a preferred embodiment of the present invention, the intersecting surface of the metal outer vertical surface and the expandable silicone rubber is treated by sand blasting or anodic oxidation, and the plurality of grooves are tapered structures with small outer portions and large inner portions.

In a preferred embodiment of the present invention, the plurality of grooves on the metal outer surface can be machined or made by strong acid corrosion.

In a preferred embodiment of the present invention, the fixing angle piece is provided with a threaded hole to fix the metal outer surface on the metal box body.

In a preferred embodiment of the present invention, the metal case and the surface of the metal outer surface are treated with a release agent, or a release cloth with adhesive is adhered.

Drawings

Fig. 1 is a schematic structural view of a composite material light shield frame according to the present invention.

Detailed Description

In conjunction with the embodiment of fig. 1, the metal can (100) is machined from 45# steel or die steel P20, with 45 ° bevels on both sides and grit blasted on the inside surface to increase the surface roughness.

Three sides of the two metal outer vertical surfaces (200) are provided with 45-degree oblique angles, and a plurality of conical holes with small outer parts and large inner parts are arranged in a machining mode. Two metal outer vertical surfaces (200) are fastened on the metal box body (100) through fixing angle pieces (400) by bolts.

Two-component liquid silicone rubber R10301 was prepared according to a: B component 10: 1, pouring the mixture into a forming die consisting of a metal box body (100) and a metal outer vertical surface (200), curing at room temperature to obtain the expandable silicon rubber (300), wherein the metal outer vertical surface (200) is provided with a conical groove, the poured silicon rubber flows into the conical groove, after the expandable silicon rubber (300) is cured, a fixed corner piece (400) is removed, and the metal outer vertical surface (200) is tightly connected with the metal box body (100) through the expandable silicon rubber (300).

When a composite material product with a box body structure is formed, a pressurizing device consisting of a metal box body (100), a metal outer vertical surface (200) and expandable silicon rubber (300) is placed inside the product, the expandable silicon rubber (300) expands under the action of heat, so that the metal outer vertical surface (200) is pushed to uniformly apply pressure to a composite material forming surface, after solidification is finished, the temperature is reduced, the metal outer vertical surface (200) rebounds under the action of the expandable silicon rubber (300), and finally a threaded rod (400) on the metal box body (100) is utilized for demolding, so that the pressurizing device can be repeatedly formed and used.

Claims

1. A pressurizing device for molding a composite material with a box-shaped structure is characterized by comprising a metal box body, a threaded rod, a metal outer vertical surface, expandable silicon rubber and a fixed angle sheet; the metal box body is connected with the metal outer vertical surface through a fixed corner piece, and expandable silicon rubber is poured inside the metal box body; the bottom surface of the metal box body is provided with a threaded rod, so that later-stage demolding is facilitated.

2. The pressing device for molding a composite material with a box-shaped structure as claimed in claim 1, wherein the outer contour of the metal box body follows the profile of the product, and the inner surface of the metal box body is subjected to sand blasting or anodic oxidation.

3. The pressing device for molding a composite material with a box-shaped structure as claimed in claim 1, wherein the two open sides of the metal box body are beveled at a certain angle.

4. The pressing device for molding a composite material with a box-shaped structure as claimed in claim 1, wherein the inner surface of the outer vertical surface of the metal is provided with a plurality of conical structure grooves with small outer parts and large inner parts, and the inner surface of the conical structure grooves is subjected to sand blasting or anodic oxidation treatment.

5. The pressing device for molding box-type structural composite material as claimed in claim 1, wherein the grooves on the inner surface of the metal facade are made by machining or strong acid etching.

6. The pressing apparatus for molding a composite material having a box-like structure according to claim 1, wherein the outer surface of the metal case and the outer surface of the metal case are treated with a release agent or a release cloth with adhesive is stuck thereto.

7. The pressing device for molding a composite material with a box-shaped structure as claimed in claim 1, wherein the intersecting surface of the metal outer vertical surface and the metal box body is beveled at an angle.

8. The pressing device for molding a composite material having a box-like structure according to claim 1, wherein the expandable silicone rubber is a room-temperature-vulcanized two-component silicone rubber.

9. The pressing device for molding a composite material with a box-shaped structure as claimed in claim 1, wherein after the expandable silicone rubber is cured, the metal box body is integrated with the metal outer vertical surface, and the fixing angle piece is removed.