Extrusion die for composite board formed by co-extrusion of metal profile and wood plastic

A technology for extrusion dies and metal profiles, which is applied in the field of extrusion dies for composite sheets, can solve problems such as inability to produce composite sheets, achieve the effects of improving cooling and shaping efficiency, ensuring basic strength, and improving production efficiency

Active Publication Date: 2018-09-11
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this extrusion die can only produce wood-plastic profiles, but cannot produce composite panels co-extruded with metal profiles and wood-plastic

Method used

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  • Extrusion die for composite board formed by co-extrusion of metal profile and wood plastic
  • Extrusion die for composite board formed by co-extrusion of metal profile and wood plastic
  • Extrusion die for composite board formed by co-extrusion of metal profile and wood plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Weigh raw materials:

[0034] Weigh the raw materials of wood-plastic frame 1: 40 parts by weight of polyvinyl chloride, 35 parts by weight of wood powder (wood powder, aspect ratio less than 40:1, particle diameter less than 1mm), 10 parts by weight of inorganic filler, impact modified 8 parts by weight of agent, 2 parts by weight of lubricant, 2 parts by weight of stabilizer, 2 parts by weight of compatibilizer, 1 part by weight of processing aid, and 3 parts by weight of foaming agent.

[0035] (2) Manufacturing process:

[0036] Firstly, prefabricate the perforated plate structure by punching, drilling, etc. on the surface of metal plates such as steel plates and aluminum plates, and then process it into open profiled materials according to the cross-section design and ventilation requirements. Among them, the cross-section of the metal profile 2 can be It is a U-shaped, C-shaped or semi-enclosed special-shaped shape. In this embodiment, such as Figure 5 and ...

Embodiment 2

[0061] This embodiment produces as Figure 8 The preparation method and raw materials of the composite plate shown are basically the same as those in Example 1. The difference is that: using Figure 7 Extrusion dies and different metal profiles shown. Figure 7 The metal profiles 2 and divider panels 33 with figure 1 The positions of the metal profile 2 and the partition plate 33 in the composite plate are different, Figure 7 The web of the metal profile 2 in the composite panel is bonded to the outer layer of the composite panel (the inner wall close to the surface of the composite panel). Figure 7 and figure 1 The cross-sections at the same cutting position are basically the same, with only some differences in size.

[0062] Figure 7 Dies shown can be fabricated Figure 8 Composite panels as shown, such as Figure 7 As shown, the extrusion die 3 includes a partition plate 33 and three cores 32 .

[0063] Divider 33 and metal profile 2 surround a hollow container,...

Embodiment 3

[0070] produce as Figure 10 Shown composite plate, its preparation method and raw material are basically the same as embodiment 2, difference is:

[0071] Extrusion die: The extrusion die 3 is only provided with a partition plate 33, but no core 32 is provided. In this way, when the composite sheet is manufactured, the partition plate 33 can form a hollow container with the metal profile 2, and the container and the mold body There is a gap for injecting molten wood-plastic material between 31, so that the molten wood-plastic foam material enters the cavity 34 and injects into the gap, forming a wood-plastic composite board on the periphery of the metal profile 2 and the partition plate 33. After the frame 1 is cooled and formed, the composite plate has only one first cavity, and the surface of the metal profile 2 is bonded to the wall of the first cavity.

[0072] Metal profile: the metal profile 2 used in this embodiment is basically the same as that of embodiment 2, the d...

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Abstract

An extrusion die for a composite sheet material formed by co-extrusion molding of a metal section material and wood plastic comprises a mold body and a separation plate; the separation plate is arranged in a cavity formed in the mold body, and the metal section material is an opened metal section material; a hollow container is enclosed by the separation plate and the metal section material sent into the cavity, and a gap used for injecting a fused wood plastic foaming material is formed between the container and the mold body; and the extrusion mold is provided with an air channel, and the air channel successively passes through the mold body, the cavity and the separation plate and enters the container space. The extrusion mold in the embodiment is capable of producing the composite sheet material formed through co-extrusion molding of the metal section material and wood plastic, and through the air channel hollow space, too much of the fused wood plastic fluid is prevented from flowing into the hollow space, inner-cooling of the composite sheet material is realized, the cooling shaping efficiency is improved, and thus the production efficiency is improved.

Description

technical field [0001] The invention relates to a mold, in particular to an extrusion mold for a composite board formed by co-extruding metal profiles and wood plastics. Background technique [0002] Solid clay bricks are often used for traditional building walls, which is not conducive to the protection of cultivated land; at present, wall materials such as aerated concrete blocks and hollow bricks need to be constructed on site, requiring cement wet work, generating a lot of construction waste on site and consuming a lot of labor. , The dimensional accuracy of the wall is also difficult to control, and the construction period is long, ranging from more than half a year to more than one year or even more than two years to complete. [0003] Chinese patent CN 202915032U provides a wood-plastic profile and an extrusion die for making it. The wood-plastic profile includes a wood-plastic profile body. Both ends of the wood-plastic profile body are symmetrically provided with co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/12B29C47/02B29C47/86B29C48/30
Inventor 赵永生
Owner BEIJING NEW BUILDING MATERIALS PLC
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