Unlock instant, AI-driven research and patent intelligence for your innovation.

Foaming die and method of foaming components

A foam molding and mold technology, which is used in the foam molding field of foam backing and components, can solve problems such as defects, air pit surfaces, etc.

Inactive Publication Date: 2005-08-24
ARVINMERITOR GMBH
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If gas escapes only partially or not at all, air traps and surface defects result

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Foaming die and method of foaming components
  • Foaming die and method of foaming components
  • Foaming die and method of foaming components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Figure 1 illustrates a motor vehicle body panel section in the form of a roof module 10, which is a large surface composite structure attached to a roof frame 12 by bonding. The roof module 10 defines the outer skin, in this case the roof skin of a motor vehicle. As already mentioned, the roof module 10 is a composite structure and the outer skin is formed from sheet material (14), which may be a deep drawn aluminium sheet or a plastic sheet dyed throughout.

[0020] The roof module is manufactured in a foam moulding mould as shown in Figures 2 to 4, which comprises a lower part 16 and an upper part 18, which can be brought together or separated, if they are moved together The interior of the foam molding cavity 20 is determined. The lower part includes a grooved recess, while the upper part is almost flat.

[0021] A large surface membrane 22 of flexible material is secured within the upper portion 18 . The inner side 24 of the diaphragm 22 is flush with the inner s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A foaming die comprises a lower part and an upper part. A foaming cavity is formed between the lower part and the upper part, and a membrane is mounted on the inside of the foaming die at the inside of at least one of the lower part and the upper part. The membrane delimits the foaming cavity and transports gas to gas outlet openings during the foaming process. The invention is particularly suitable for forming vehicle body panel parts with a foamed backing.

Description

technical field [0001] The invention designs a foaming molding die, which comprises a lower part and an upper part, and a foaming molding cavity is formed between the two. [0002] The invention further relates to a method of foam forming of components, in particular to provide a foam backing for the body panel portion of a motor vehicle. Motor vehicle body panel sections are those sections that define at least part of the motor vehicle outer skin of the final assembled motor vehicle. In particular, the present invention relates to a method of manufacturing a motor vehicle roof module, ie a large surface composite structure that is attached to a roof bracket and forms a major part of the roof skin. Background technique [0003] The demands on the surface quality are high, especially when manufacturing body panel sections using a method of providing a foam backing. In this method, a foam backing of PU material is typically provided to the panels that subsequently define the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/10B29C44/12B29C44/34B29C44/58
CPCB29C44/10B29C44/588B29C44/587B29C44/586B29C44/1233B29C44/12B29C44/14
Inventor 克里斯蒂安·比韦尔霍斯特·舍内贝克
Owner ARVINMERITOR GMBH