A material which is stuck together by an adhesive.
Adhesion:
The force which causes two surfaces to stick together
The sticking together of surfaces in contact with each other
The bonding of materials with adhesives (glues, cements, binders,
etc), in which the intermolecular forces between
adhesive and
adherend provide the bonds.
The sticking together of two metals as a result of compressing
them together
The sticking together of two dissimilar metals because of
electrical transference of electrons. Also see cold welding
The ability of paint, primer, or glue to
stick to the surface to which it is applied.
The ability of a tire to grip the surface of the road.
Mutual forces between two magnetic bodies linked by magnetic flux, or
between two charged non-conducting bodies which keeps them in contact
Intermolecular forces which hold matter together, particularly
closely contiguous surfaces of neighboring media, e.g., liquid in contact
with a solid.
A substance (like glue) that is used to join two substances. An
adhesive must bond both mating surfaces through specific adhesion
(molecular attraction), through mechanical anchoring (by flowing into
holes in porous surfaces), or through fusion (partial solution of both
surfaces in the adhesive or its solvent vehicle). Various descriptive
adjectives are used with the term adhesive to indicate types, such as:
a. physical form
Liquid adhesive, film adhesive, etc.
b. composition
Resin adhesive, rubber adhesive, silicone based, mastic, etc.
Agent for joining materials by adhesion, usually polymeric
material. May be based on thermoplastic resin (e.g., polystyrene cement) or
thermoset (e.g., epoxy resin). Viscosity is important for gap filling (high,
as in epoxies) or surface penetration (low, as in cyano-acrylates). Also
called binder, cement, or glue
A tape with a sticky substance on one side. It usually comes in a
roll of various widths. Sometimes used to insulate electrical wires (e.g.,
electrical tape) or to wrap a larger object (e.g., duct tape). Often the
non-sticky side is shiny (but not always) to distinguish it from the sticky
side.
Adhesive weight:
Lead wheel weights which have a sticky backing. It comes in strips
and is applied to a wheel rim to balance a wheel. Also called tape
weight..
Adiabatic:
A property of being able to maintain heat evenly. It does not gain
any heat or lose it.
Also See: thermal efficiency
Adiabatic change:
Without changing the temperature of an enclosure or its
surroundings, there is a change in the volume and pressure of the contents
of the enclosure.
Adiabatic compression:
Compressing refrigerant gas without removing or adding
heat.
Adiabatic efficiency:
The ratio of that work required to compress a gas adiabatically to
the work actually done by the compressor piston or impeller.
Adiabatic engine:
An engine which is very efficient in transferring combustion heat to
those parts of the engine which are being cooled by the flow of anti-freeze
coolant -- thus maintaining an even temperature of the engine. In this way
the engine is warm enough for efficient running and it does not
overheat.
Adjust:
The action of putting something into its proper alignment or
position. It may involve one component (e.g., He adjusted the gasket to fit
properly.) or a series of components (e.g., He adjusted the poor idle --
might mean he set the ignition timing, adjusted the carburetor screws,
changed the choke setting, cleaned or replaced the spark plugs, etc.)
Also See: tweak
Adjustable:
A characteristic of something that can be
changed, removed, or give different properties.
Also see height adjustable steering column
Adjustable bottom bracket:
A component of a bicycle through which the crank fits. It has two
bearing cups on either side. One cup is fixed in place while the other is
removable or adjustable.
This is the older type of bottom
bracket before sealed cartridge bottom brackets became prevalent. The
adjustable bottom bracket requires fixed and adjustable cup tools to properly
tension the bearings. The bearings are not sealed, but they're easily
accessible for cleaning and lubrication.
Some emissions-era Rochester carburetors have a separate air
passage to bleed air past an adjustment screw into the idle system. This
screw is preset by the factory to produce precise off-idle air/fuel mixture
ratios to meet emission-control requirements.
Adjustable part throttle:
(APT) a supplementary
circuit on some carburetors that can be adjusted to control part-throttle
mixtures more accurately than a fixed orifice. The APT detours around the
main jet, going directly from the float bowl to the discharge nozzle feed
well.
Shocks with adjustable jounce and rebound characteristics can be
stiffened to compensate for wear or to fine tune a suspension for a
particular application such as rough roads, heavy loads, or racing.
Adjustable shocks:
Click to supersize
Adjustable shock absorber
A type of Shock absorber
which can compensate for varying needs of stiffness or softness. Manual
types (especially on motorcycles) require that you physically make the
adjustment from one level to another by rotating securing rings.
Automatic types are controlled by a
computer as it senses particular
changes in road condition.
A device used on
two-stroke engines which
automatically alters or varies the
exhaust port size.
Adjustable wrench:
A crescent wrench or
pipe wrench. A tool which has
a fixed jaw and a movable jaw which is controlled by a spiral gear. It is
used to install or remove bolts and nuts of various sizes. The wrench itself
comes in a variety of lengths and jaw sizes. A crescent wrench has smooth
jaws while a pipe wrench has serrated jaws. British term is "adjustable
spanner."
Eccentric bolts that adjust the
shoe-to-drum clearance. Located in the
backing plate of
drum brakes, the cam positions the shoe(s)
closer to the drum. Some adjust automatically and some manually.
A tool used to determine the small distance between two parts so
that they can be brought within specifications.
Adjusting screw:
A small screw usually found on carburetors, brakes, or headlights
which change the way something operates, such as increasing or
decreasing the amount of fuel entering the engine; or changing the idle
speed; or tightening up the brakes; or changing the setting on rocker
arms; or the level of the headlights.
Also see headlight adjusting screw tappet adjusting screw valve adjusting screw
Adjusting shim:
A thin washer or plate which reduces or increases the clearance
between two components (depending upon where they are placed). While
some valves are adjusted by screws on the rocker arm, others are set by
inserting a shim to make the same adjustment.
Adjusting sleeve:
A small threaded cylinder on the end of the tie rod which shortens
or lengthens the rod to make changes in the
toe-in and
toe-out.
The brand name of a vehicle. With required application the 1925-48
models are classic cars.
Admission:
The point in the working cycles of a steam or
internal-combustion engine at which the intake valve allows entry of the
working fluid into the cylinder.
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