EuroWire May 2015

52 / 116

News
Technology
May 2015 50
No. 791 is a gas-heated, two-zone belt
conveyor oven from Grieve, currently
used to stress relieve heavy-duty steel
springs. This unit has a maximum
operating temperature of 850°F and
workspace dimensions of 48" W x 360" L x
15" H.
The conveyor includes a 4ft-long open
belt loading zone, 2ft-long insulated
unheated entrance vestibule, two
15ft-long insulated heating zones with
independent re-circulated airflow and
temperature controls, 2ft-long insulated
unheated exit vestibule and 3½ft-long
open unloading zone.
Heat is provided by 1,600,000 BTU/
HR installed in two modulating natural
gas burners. Two 10,000 CFM, 7½ HP
recirculating blowers provide vertical
downward airflow over the workload.
All safety devices required by IRI, FM
and NFPA Standard 86 for gas-heated
equipment are included on this Grieve
oven, which also features a two-pen, 10"
diameter circular chart recorder.
Other construction features on No. 791
comprise a 42"-wide, 1" x 1/2" flatwire
conveyor belt with 1/3 HP motor drive,
variable speed from 5.8 to 16.1" per
minute, 7" insulated walls throughout, a
Type 304, 2B finish stainless steel interior
and an exhaust hood over each end of the
oven, equipped with a 12" diameter fan.
Grieve Corporation – USA
Website:
850°F gas-heated oven
▲ ▲ The unit has a maximum operating temperature of 850°F
Sylvin Technologies manufactures flexible vinyl compounds
for the wire and cable and electrical markets that satisfy
customers’ performance, sustainability and regulatory goals.
Product features include the new 7844 series of electrical
moulding compounds, which are approved to UL-94 with an
HB flame rating and are compliant with California Proposition
65.
The 5409-92 compound is 125°C rated and suitable for
SAEJ1127 and 1128 automotive wires. This material provides
oil and grease resistance and increased low temperature
flexibility.
Sylvin also has innovative bio-based compounds including
the 6240-80 compound, which is non-phthalate and
environmentally focused.
Bio-based products offer the same performance advantages
of general purpose flexible vinyl compounds. Sylvin’s diverse
product portfolio for the wire and cable and electrical
markets includes RoHS, REACH and Prop 65 compliant
compounds.
Several grades are UL and CSA recognised and numerous
speciality grades have been developed for enhanced
conductive properties, flame and oil resistance and improved
low temperature flexibility.
Sylvin’s on-site technical experts have developed custom
formulations for a variety of wire and cable and electrical
applications including automotive wire, speaker wire, battery
terminal covers, blasting wire, booster cable, moulded cable
assemblies and electrical connectors.
Sylvin Technologies Inc – USA
Website:
Flexible compounds from Sylvin