Compound solves power door switch problem

APPLICATIONS =3

Compound

solves power door switch problem

A Lubriloy@ alloy from LNP

to have better elongation prop-

alloy is also said to provide a

Engineering Plastics has been

erties, which eliminates this

more consistent tactile feel over

selected for a crucial application in a minivan - the driver’s side

embrittlement in cold weather.

the entire sliding surface of the

Dimensional stability and

switch.

additives and reinforcements. Contact: LNP Engineering Pkzstics

materials at reduced cost and can be combined with other

door switch that activates the

moisture resistance are also

The Lubriloy compounds are

power sliding doors to open and

improved, reducing the poten-

claimed to offer properties

Tel: +1 610 363 4782

close. The company says that the switch’s polycarbonate but-

tial for warp. The Lubriloy

approaching PTFE-lubricated

Email: jlucas@lnp. corn

ton will not stick to the switch base, which is an injection moulded internally lubricated glass filled nylon 6/b Lubriloy alloy. The dimensional stability is said to be increased and the switch bases will not embrittle in cold weather. The power door switch has electrical terminals insert moulded into the base that serve as electrical conduits from the wiring harness into the switch module. The new switch is one of the first mounted onto a minivan’s B pillar to move the driver’s side power door. Glass filled nylon 6/G had been used for many of

“r

.

these switch bases, but the polycarbonate push button could wear into the base, through the outer layer of resin and cause potential sticking on the glass reinforcement. In addition to finding a material that would prevent sticking, a re-design in the switch base called for a material that was strong but slightly more pliant than glass filled nylon 6/6, says LNP Engineering Plastics. A snap clip was designed that was integrally moulded into the switch base, allowing the switch to snap into place on the pillar. Therefore, the switch is required to retain its strength and yet have enough flexibility to snap in without breaking. In cold weather, switches made from glass filled nylon 6/b tend to embrittle and often fail when snapped into a B pillar. The nylon 6/6 alloy is claimed RES No.007 - USE THE FAST NEW ENQUIRY SERVICE

q

Plastics Additives

@ www.addcomp.com & Compounding

February

2002