| Titre : |
New measuring apparatus and test methods to meet the needs of automobile leathers |
| Type de document : |
texte imprimé |
| Auteurs : |
Josef Schmitt, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 75-80 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuir dans les automobiles
Cuirs et peaux -- Analyse
Essais (technologie)
Gaspillage -- Lutte contre
Mesure
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
BMW uses more than six million m² of leather a year - however, in producing acceptable leather components,the total leather wastage can be as high as 50%.
The causes of these rejections are largely due to:
- Poor raw material
- Transport damage
- Faults in leather manufacture
- Faults in subsequent leather use
- Losses during the cutting process
Other costs and losses can be attributed to:
- Additional sorting by the component producer
- Area losses induced by punching or stamping
- Rejection and reworking in production
- Complaints both internally and by customers
- Guarantee costs
- Additional administration and required working capacity
Many of these problems can be reduced, and the leather use optimised by measurements, such as:
- Determination of the physical properties of leathers upon delivery
- Measuring changes in leather properties during component production
- Targeted quality control to customer requirements
- Supervision of processes used in component production, such as lamination, concealment, forming coating and perforation
- Better fault analysis |
| Note de contenu : |
- DETERMINING LEATHER BEHAVIOUR IN COMPONENT MANUFACTURE BY PHYSICAL ANALYSIS
- NEW TEST METHODS AND PROCEDURES : Measurement of the grain structure - Measuring the thickness of the leather finish - Measuring the compression of leathers (BMW patent available mid-2001)
- Fig. 1 : Modified µikro TOP apparatus
- Fig. 2 : The depressions in the grain surface can be seen in blue, with green showing average grain level, and red the high spots
- Fig. 3 : Compression instrument
- Fig. 4 : Microwave drying based on apparatus from CEM can provide the percentage moisture content of leathers. Drying time is between tree and eight minutes and the instrument can be linked to a PC for output and recording of data
- Fig. 5 : Infra-red drying with an operational time of 8- 40 minutes. This is not so fast or gentle in use as microwave drying, but is useful for local determinations. The apparatus is available from Sartorius |
| En ligne : |
https://drive.google.com/file/d/1mNPhqMEuSdVuCHzloIM8NqyueacFsEv-/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32177 |
in WORLD LEATHER > Vol. 14, N° 6 (10/2001) . - p. 75-80
Aller sur edunet
Accueil
Ajouter le résultat dans votre panier Affiner la rechercheNew measuring apparatus and test methods to meet the needs of automobile leathers / Josef Schmitt in WORLD LEATHER, Vol. 14, N° 6 (10/2001)
