Page 101 - 2010-2022 hose manufactureing ability and guide
P. 101

hose assembly:    a length of hose with  a     insert:  optional term for nipple (see nipple).
                 coupling attached to one or each end.
                                                                inspection block:    a description on a drawing
                 hose clamp:  a collar, band or wire used to hold   of the dimensional inspection to which a hose
                 hose on to a fitting, See also: clamp, ferrule.   will be subjected.
                 hose duck:    a woven fabric made from  plied   instantaneous modulus: the  slope of  a
                 yarns with  approximately equal strength  in   stress-strain curve  at a single point, employed
                 warp and filling directions.                   when modulus varies from point to point.

                 hot air cure:  vulcanization by using heated air,   interstice:   a  small opening,  such  as between
                 with  or without  pressure, See also:  air  cure,   fibers in a cord or threads in a woven or braided
                 vulcanization.                                 fabric.
                 hysteresis:  a loss of energy due to successive   intrinsic viscosity:    the ratio of the difference
                 deformation  and relaxation. It is  measured  by   of  the viscosity  of the  solution, at the  given
                 the area between the deformation and relaxation   concentration and  the  viscosity of the  pure
                 stress-strain curves.                          solvent to the  product of the viscosity of the
                                                                pure solvent and  the  volume concentration  of
                 hysteresis loop:   in general, the area between   the solution.
                 stress-strain curves of increasing and reducing
                 stress; a measure of hysteresis.               IPT:   the abbreviation  for standard  iron  pipe
                                                                thread.
                                      I
                                                                ISO:   the abbreviation for  the International
                 ID:  the abbreviation for inside diameter.
                                                                Organization for Standardization.
                 identification yarn:   a  yarn of  single or
                 multiple  colors, usually  embedded in the hose                     J
                 wall, used to identify the manufacturer.       jacket:   (1) a seamless tubular braided  or
                                                                woven ply  generally on the outside of a hose;
                 immediate set:  the amount  of deformation     (2) a woven fabric used during vulcanization by
                 measured immediately after removal of the load
                 causing the deformation,                       the wrapped cure method.
                                                                                     K
                 impregnation:  the act of filling the interstices
                 of an article with a rubber compound. Generally   kinking:  a temporary or permanent distortion
                 applies to the  treatment of textile fabrics and   of  the hose induced  by bending beyond the
                 cords.                                         minimum bend radius.

                 impression:   a  design formed during          knit fabric:   a flat  or  tubular  structure made
                 vulcanization  in the  surface of a hose  by a   from one or more yarns or filaments whose
                 method of transfer, such as fabric impression or   direction is  generally  transverse to  the  fabric
                 molded impression,                             axis but whose successive passes are united by
                                                                a series of interlocking loops.
                 impression, fabric:  impression formed on the
                 rubber surface during vulcanization by contact   knit ply:  a layer of textile reinforcement in
                 with fabric jacket or wrapper,                 which the yarns are applied in an interlocking
                                                                looped configuration in  a  continuous tubular
                 impulse:  an application of force in a manner to
                 produce  sudden strain or motion,  such as     structure.
                 hydraulic pressure applied in a hose.          knitter:  a machine for forming a fabric by the
                                                                action  of needles engaging threads in  such  a
                 indentation:  (1) the extent of deformation  by
                 the  indentor  point of  any one  of a number of   manner as to cause a  sequence  of  interlaced
                                                                loops (Interlaced loops  forming  a continuous
                 standard hardness  testing instruments;  (2) a
                 recess in the surface of a hose.               tubular structure are commonly used  as hose
                                                                reinforcement).
                 inhibitor:   an ingredient  used to suppress a
                 chemical reaction or a growing activity such as
                 mildew.





                RMA/IP-2/2003                                                                             80
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