E QUIPMENT
NEWS
izontal a n d vertical move-m e n t s ) m a c h i n e s c a n be used for the h e a t joining of injection moulded plastic parts. The sTstem is suitable for joining three-dimensional p a r t s as well as straight btltl welding. The c o m p a n y says t h a t the m a c h i n e s are available with manual, semi or fully aulom a t i c o p e r a t i o n . They all work horizontally or vertic ally within a wide range of p l a t e n sizes.
ing eight sequential m e a s u r e ments.
S. Chick, Product Manager, Carri-Med Ltd, CarriMed House, G l e b e l a n d s Centre, Vincent Lane, Dorking RH4 3YX, UK; tei:0306886180; fooc: 0306-885863; toc: 859115.
Fibre/resin ratio analysis Non-destructive fibre/resin ratio analysis of reinforced plastics can now be carried o u t u s i n g t h e URA 2 0 0 0 m a c h i n e from Test Inc, San Diego, California, USA. Test says t h a t t h e URA 2000, w h i c h uses ' t h r o u g h - t r a n s mission' u l t r a s o n i c s to measure the ratio, is safe, clean, quick, a c c u r a t e and non-destructive. The s y s t e m can a n a l y s e both cured and uncured composites, giving a ratio by weight or volume. F e a t u r e s include a personal c o m p u t e r with d a t a a c q u i s i t i o n software a n d an e x p e r t w s t e m tbr d a t a analysis, h a r d w a r e l'or m a t e r i a l s sensing a n d a dot m a t r i x p r i n t e r for p e r m a nent m a p s a n d records of resin composition.
Gloria Ma, President, Test Inc, 4025 Avati Drive, San Diego, CA 92117, USA; tel: 619-272-2299.
Strain determined using laser extensometer A s c a n n i n g laser e x t e n s o meter, w h i c h o p e r a t e s without any m e c h a n i c a l c o n t a c t between the i n s t r u m e n t a n d the sample, has been devel o p e d by H o u n s f i e l d T e s t E q u i p m e n t of Croydon, UtC The c o m p a n y says t h a t the e x t e n s o m e t e r can be used to determine the extension
t)atricia Thompson, Lucas Dawe Ultrasonics Ltd, Concord Road, Western Avenue, London W30SD, UK," tel: 01 992- 67:51; ,fair: 01 -993- 7202: k~." 934848, The Hounsfield 500L laser extensometer.
c h a r a c t e r i s t i c s of a wide r a n g e of materials including plastics. A laser is p r o j e c t e d as a n a r r o w s c a n n i n g b e a m of 90 ° divergence, so the full scale scan of the e x t e n s o m e t e r is d e t e r m i n e d by the d i s t a n c e between the scanning unit a n d test sample. According to Hounsfield, the b e a m scans some 300 times a second a n d the results are n o t l o s t if t h e b e a m is i n t e r r u p t e d d u r i n g testing. The Hounsfield 500L Ext e n s o m e t e r has two display r a n g e s of 0-100% a n d 01000% a n d i n c o r p o r a t e s a liquid crystal g r a p h i c s display showing e l o n g a t i o n percentage.
Lucas Dawe Ultrasonics' Hot Plat ~ We/ding 3ysten7 may be used to join injection moulded pl rstic ~rn:l cornpo,cite parts
H o u n s f i e l d Test Equipment, 37 Fullerton Road, Croydon CRO 6JD, UK; tel: 01-654-7665; fax: 01-6563770; tx: 262982.
[ ] Hot plate welding systems Lucas Dawe Ultrasonics Ltd of London, UK, says t h a t its Hot Plate Welding Systems Series 7901 a n d 7910 (hor-
REINFORCED PLASTICS J/MNUARY 1990