for Seals, Gaskets, O-Rings, Orings, Rubber.
the terms and definitions for seals, seal, orings,
gasket, gaskets, hydraulic seals, hydraulic seal,
metric seals, metric seal, o-rings, o-ring, viton,
teflon, silicone, rubber, nitrile, ucup, plastic,
metric orings, injection molding, oil seals, packings,
parts, molding, machining.
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
us help your business today - Call (800) 553-5054
Canned Wipers - A wiper or scraper
ring for a hydraulic cylinder which has a metal outside
diameter so that it can be press-fitted into a housing.
Carbon black - Elemental carbon in finely
divided form used to reinforce elastomeric compounds.
Carbon Black - Finely divided carbon
formed by the incomplete combustion of natural gas or
petroleum in large, closed furnaces.
Iron Piston Rings - Piston sealing rings made from
cast iron used in hydraulic cylinders.
- A chemical in small quantities which accelerates a
chemical reaction without itself necessarily becoming
part of the final product.
- Rubber products which contain cells or small hollow
receptacles. The cells may either be open or interconnecting
or closed and not interconnecting.
Matrix - An analytical technique for displaying
the relationship between process para- meters and manufacturing
Checking - The short, shallow
cracks on the surface of a rubber product, resulting
from damaging action by environmental conditions.
Checking. Sunlight - The development of
minute surface fissures as a result of exposing rubber
articles to sunlight, generally accelerated by bending
Chemical Resistance -
The resistance offered by elastomer products to physical
or chemical reactions as a result of contact with or
immersion in various solvents, acids, alkalis, salts,
Chevron Packings - Also called
V-Packing, Vee packing, Chevron Packing, Parachute packing
or v-set packing. A complete vee packing set contains
multiple "V" shaped sealing rings stacked and nested
together with a male adapter on one end and a female
adapter on the other end.
See Chevron Packing above.
- 2-Chloro-l, 3-butadiene, a volatile, colorless liquid
which boils at 59c., synthesized from acetylene. It
is used in the manufacture of neoprene, which is obtained
by polymerizing chloroprene under suitable conditions.
C.I. - The abbreviation for cloth- inserted,
indicating a sheet of rubber containing one or more
plies of fabric covered with rubber.
- Any naturally occurring mineral substance consisting
preponderantly of hydrous aluminum silicates, which
divided and mixed with water, yields a more or less
plastic mass which can be formed and molded, and which
will retain its shape on drying. Clays vary greatly
in composition but in their purest forms they approach
the composition of Kaolinite, A12O3.2Si2.2H20. They
are used as compounding ingredients in rubber, some
of them having mild reinforcing properties.
Cold Flow - Continued deformation under stress.
Coefficient of Expansion - The coefficient
of linear expansion is the ratio of the change in length
per degree to the length at 0 Celsius. The coefficient
of surface expansion is two (2) times the linear coefficient.
The coefficient of volume expansion (for solids) is
three (3) times the linear coefficient. The coefficient
of volume expansion for liquids is the ratio of the
change in volume per degree to the volume at 0 Celsius.
Compact Seals - Multi-piece seal sets, generally
used as piston seals in a hydraulic cylinder. Made to
fit in a limit space, compact piston seals contain a
primary sealing component, guide rings and back-up rings
in one convenient set.
Compound - A
term applied to either vulcanized or unvulcanized mixtures
of elastomers and other ingredients necessary to make
a useful rubber-like material.
- 1). In chemistry, it is the material resulting from
the chemical union of two or more elements in definite
proportions and in which the properties of the individual
elements have disappeared. - 2). In rubber manufacture,
it is the composition or formula of stock, the ingredients
of which, however, may not all be chemically combined
and is therefore more of a physical mixture.
Compression Deflection Charateristics - The tests
for compression-deflection characteristics constitute
methods of compression stiffness measurement. One compression
test involves the determination of a load required to
case a specified deflection, and another is a compression
test in which a specified weight or compressive force
is placed on the specimen and the resulting deflection
is measured and recorded.
- The residual decrease in thickness of a test specimen
measured 30 minutes after removal from a suitable loading
device in which the specimen has been subjected for
a definite time to compressive deformation under specified
conditions of load application and temperature. Method
A measures compression set of vulcanized rubber under
constant load. Method B employs constant deflection.
Compression set - The residual deformation
of a material after removal of the compressive stress.
Conductive - To conduct or transmit
heat or electricity.
- Discoloration of a product by another material or
by a rubber article in the area directly touching it.
Copolymer - A polymer consisting of
two different monomers chemically combined.
Copolymer - A copolymer is a high polymer consisting
of molecules containing large numbers of units of two
or more chemically different types in irregular sequence.
Butadiene (78) and styrene (22) forms a copolymer known
Copper Seal Rings - Rings made
from thin copper formed over fiberous filler to seal
in high temperature.
Crazing - A surface
effect on rubber articles characterized by many minute
Creep - The deformation, in
either cured or uncured rubber under stress, which occurs
with lapse of time after the immediate deformation.
Cross Section - An O-ring as viewed
if cut at right angles to the axis showing internal
Crush Washers - A washer
made to be crushed to form a seal.
- Sealing devices made in the shape of a cup with outer
lips curved upward usually made from rubber, fabric
reinforced rubber or polyurethane.
- The act of vulcanization. See Vulcanization.
Cushioning Seals - Sealing rings mounted
into a cylinder to cushion the stroke or prevent metal
to metal contact.
Custom Molded Products
- Special shaped parts molded from rubber or plastic
made to fit the machine or device it is used in.
Cut - The distance between cuts or parallel
faces of articles produced by repetitive slicing or
cutting of long preshaped rods or tubes such as lathe
Cystalinity - Stretched
natural rubber forms a high oriented state and shows
X-ray diffraction patterns and other properties common
to truly crystalline materials. The amorphous and crystalline
regions are not mechanically separable phases, but the
same molecule may at the same time have part of its
length in a crystalline, and the remainder In an amorphous