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Wire & Cable ASIA – May/June 2009

34

William Hughes Ltd specialises in

making complex wire components and

was recently asked to manufacture a

threaded linkhook with many bends,

for use in the diesel pumps used in

lorries and cars. The small component

is formed from a piece of wire just

117.4mm long and has to meet precise

dimensional tolerances.

Based on a 2.6mm diameter length of

annealed steel wire, the component

passes through five different processes

before it is ready for use. The first

stage is to form a hook at one end and

a chamfer on the other using a rotary

table, six-stage blanking machine. The

partly formed component then moves

to a thread cutting machine where a

20mm long thread (4 x 40 UNC) is cut

on the chamfered end.

The partly formed linkhook is then

subject to a press bend and two hand

bends to form the precise shape

required before being case hardened

in a special sealed quenched furnace.

The components are then checked

for accuracy to the correct dimen-

sions and specification using high

technology inspection equipment.

William Hughes has been making bent

wire components and springs for over

200 years and continues to expand

its range of products, processes and

finishes which now include shot

peening, and the Delta

®

Tone and

Delta

®

Seal coating processes. The

company also offers an electrophoretic

paint process, which provides the

black, gloss finish popular in the

automotive industry.

William Hughes has the technical

resources to help its customers design

and manufacture a range of bent wire

components, as well as helping to

solve a wide range of engineering and

design challenges. A rapid design and

prototyping service is available for wire

products including springs and bent

wire components. Quality systems to

ISO 9001:2000, ISO/TS16949: 2002,

the latest automotive standard and

AS9100 for aerospace ensure

consistency and accuracy of supply.

William Hughes Ltd – UK

Fax

: +44 1963 363377

Email

:

sales@wmhughes.co.uk

Website

:

www.wmhughes.co.uk

Components from wire

ECC 701 coating systems from

Nordson Corporation provide precise

process control for applying powders

for high quality, reproducible cable

coating. The system maintains an

even flow of powder to consistently

produce the desired coating thick-

ness. The new dual-filter system and

improved pump technology help

reduce

material

usage,

lower

production costs and allow handling

of abrasive materials.

ECC 701 systems fluidise and charge

various powders, including talcs and

superabsorbent powders (SAPs), to

spray on to cable.

The systems precisely control all

process parameters for repeatable

coating, and parameters can be easily

adjusted to meet changing application

requirements.

Use of Versa-Spray

®

guns optimises

performance of various powders using

the corona process to charge powder

particles. Versatile, industry-proven

Versa-Spray guns process a wide

variety of materials from talcs to

abrasive substances such as SAPs.

The new dual-filter system recovers

material not applied to cables and

returns it to the hopper.

This results in high transfer efficiency

while also providing a clean produc-

tion environment. The modular system

design has flexible inputs and out-

puts for easy integration into existing

production lines.

Nordson Corporation – USA

Website

:

www.nordson.com

Powder handling for coating systems

Direct electrical

heating system for

subsea installation

Nexans has been awarded an €11

million contract by BP Norge to

supply a direct electrical heating

(DEH) system for the Skarv field

subsea production pipeline in the

Norwegian Sea. Nexans is believed

to be the only supplier with

experience of this technology and

has already supplied this type of

system for 17 subsea pipeline

installations.

A number of methods may be used

for maintaining flow, such as

chemical injection, but DEH has

proved to be both a reliable and

eco-friendly solution to the

problem.

Nexans will supply all cables and

dedicated subsea equipment for

the DEH system. The cables will be

manufactured at Nexans’ Halden

factory in Norway and are

scheduled for delivery in the spring

of 2010.

Nexans – France

Fax

: +33 15669 8484

Email

:

nexans.web@nexans.com

Website

:

www.nexans.com

Linkhook for a diesel pump

Handling system, ECC 701