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Bent product

A bending and bending technology, applied in the field of bending products, can solve problems such as core material deformation

Active Publication Date: 2017-05-10
KURASHIKI BOSEKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the core material may be deformed due to the pressure of the resin when integral extrusion molding is performed to provide the cladding layer.

Method used

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  • Bent product
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Examples

Experimental program
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Effect test

Embodiment

[0142] As a hollow core material, it is manufactured by extrusion molding such as figure 2 The cross-section shown is a generally rectangular hollow aluminum core. However, the number of partition walls was 1, 2, 3, or 6, respectively, depending on the examples and comparative examples. Grooves extending in the longitudinal direction were formed on the aluminum core material by knurling, and then an oxide film was formed by aluminum oxide film treatment (without sealing treatment). As for the material of the aluminum alloy, an aluminum alloy having an extrusion grade of alloy number 6063 was used. The groove pitch is 0.5mm, and the groove depth is 0.1mm. Alumina film treatment uses the sulfuric acid method.

[0143] For the pellets (pellets) for the coating layer, in 100 parts by weight of maleic acid-modified polypropylene resin (maleic acid content is about 2% by weight, melting point is 150°C, MFR is about 10g / min), 30 parts by weight of wood powder (with a particle si...

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Abstract

To provide a bent product from an integrally extrusion molded body without the loss of lightweight properties or the like. [Solution] A bent product (10) that is formed by bending an integrally extrusion-formed body and has: a metal core material (20) provided with a tube-shaped peripheral wall (21) and a first partition wall (23) that extends in the longitudinal direction of the tube shape and divides the inner space of the peripheral wall in the direction of the major axis of the cross section perpendicular to the longitudinal direction of the tube shape; and a covering layer (40) that is formed on the outer surface of the core material and contains at least a thermoplastic resin. The thickness (t) of the peripheral wall is 0.8-2.3mm, and a reinforcing means is provided to the inner space side of the peripheral wall at a section (25) thereof to the inside of the bend.

Description

technical field [0001] The present invention relates to a bent product that is an integrally extruded molded product with a built-in metal core material used for construction members and the like. Background technique [0002] An integrally extruded product obtained by extruding and covering the outer surface of a metal core material with a thermoplastic resin is used as a building member or the like. For example, Patent Document 1 describes an integrally extruded body in which a coating layer containing a polyolefin resin and wood powder is provided on the outer surface of a core material made of metal such as aluminum. , to get a high-quality woody feel. [0003] In the integrally extruded product described above, a hollow core material is often used in order to achieve weight reduction and the like. In this case, when integral extrusion molding is performed to provide the clad layer, the core material may be deformed due to resin pressure. To solve this problem, Patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D7/00B29C47/02B29C53/08B32B15/02B32B15/085B29L22/00B29C48/15
CPCB21D7/00B32B15/02B32B15/085B29C53/08B21D35/007B21D47/04B21C23/142B29C48/15B29K2705/00B29L2023/004F16L9/003F16L9/147F16L9/19
Inventor 轮湖润一一濑胜哉
Owner KURASHIKI BOSEKI KK
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