Modified surface application for the automotive industry

ALCOM MS PA66+6I/X 2050 is a modified polyamide 66 which ALBIS has developed for fascias, trims and other surfaces which require an exceptionally high quality appearance where glass fiber or other fillers cannot be seen
The German automotive sector has a reputation as one of the prime movers for global innovation. Alongside the OEMs (manufacturers), supply chain players actively support continuous development and innovation in this fast-moving manufacturing sector - be it software, components or materials.

For ALBIS PLASTIC the automotive branch is also one of the major segments in which the company is active. The Hamburg headquartered distributor and compounder offers off the shelf materials as well as developing tailor-made plastic solutions for under-the-hood and interior applications. For the latter, ALBIS recently presented two new developments simultaneously. The compound ALCOM MS PA66+6I/X 2050 – MS stands for Modified Surface – is a modified polyamide 66 which ALBIS has now developed for fascias, trims and other surfaces with an aesthetically pleasing appearance in the passenger compartment for concealed as well as visible applications.

Made from ALCOM MS, these surfaces have an exceptionally high quality appearance where glass fiber or other fillers cannot be seen. This means it is no longer necessary to cover or disguise visible surfaces in the future. Other time-consuming tasks such as painting or the use of other coverings can be reduced or eliminated completely. The high percentage of fiber glass makes this grade extremely rigid and imparts high dimensional stability for all applications. That makes this grade also suitable for highly loaded structural components, whilst also offering good flow characteristics - even at low wall thicknesses. ALCOM MS PA 66 2050 is suited for highly varying applications in automobile interiors.

In another project ALBIS is supporting a new ambient lighting concept for the interior of the Mini Clubman. This consists of translucent decorative trim with attractive day and night design for use in the area of the car door. Even when not illuminated, this decorative trim forms an attractive design element. When back-lit in night time use, the same component provides innovative ambient illumination, unseen in the non-illuminated state. This application consists of a partially transparent, pre-formed foil, whose rear surface is injected with a carrier material, to which the individually relevant components are mounted. It is necessary for the decorative trim to withstand mechanical stress while fulfilling the stringent requirements for dimensional stability and crash requirements in the door area.

The first step consists of back-injecting a carrier material of the extruded, printed and cut foil. The requirements of the carrier necessitated use of an easy flowing, transparent and light diffusing grade which offers uncompromising impact resistance and dimensional stability. ALCOM LD PC (Light Diffusion) from ALBIS PLASTIC was chosen due to itsgenerally distinguished optimum light distribution with simultaneously high transmission. It was selected in combination with the foil to achieve a “disappearing effect” in areas not covered by the foil.

The other components were produced in a separate injection molding processes. A PMMA was selected for the light guide, while the reflector consists of ALCOM PP LB (Light Blocking) to achieve maximum light efficiency towards the front and prevent light leakage at the rear. The light guide was mounted on the reflector in a further step before enclosing both with the decorative trim.

Finally the light was built into the light guide with the aid of an LED housing. This LED housing consists of a specially lubricated ALCOM POM, to prevent the component from squeaking. Finally the completely assembled decorative trim – which is already demonstrating the innovative design of the new Mini Clubman – was installed in the door frame using an ultra-sonic welding process.

The concept of a decorative trim, based on a back-moulded and translucent foil, has proven successful and today it finds use in the dash board of the new Mini Countryman.

Author
Albis (UK) Ltd

This material is protected by MA Business copyright
See Terms and Conditions.
One-off usage is permitted but bulk copying is not.
For multiple copies contact the sales team.

 

Supporting Information
Do you have any comments about this article?
Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

© MA Business Ltd (a Mark Allen Group Company) 2019