Abstract:
A non-symmetrical construction of braided mechanical compression packing which does not undergo undesired deformation when placed in use. This non-symmetry of construction results in longer packing life and reduced shaft wear when used to prevent leakage about rotating shafts.
Abstract:
A braided packing comprises a plurality of braid strands braided about a plurality of core strands, the braid strands extending and forming on the packing surface a pattern extending helically in one direction and forming with said core strands an elongated braid having a normal twist extending helically in the opposite direction.
Abstract:
A packing material comprising graphite strands of fibrous material, said strands and interstices therebetween, being thoroughly impregnated with impregnating material comprising a fluorocarbon resin and a solid lubricant, such as graphite.
Abstract:
The present application pertains to a braided dual-sided compression packing seal, methods for producing and using such a seal, and apparatuses suitable for producing such a seal. The braided dual-sided compression packing seal is made up of two or more different materials that are braided together in such a way that, in cross-section, the compression packing seal has an asymmetrical configuration relative to a first axis that is substantially perpendicular to the longitudinal axis and is substantially perpendicular to a side of the compression packing seal. Accordingly, when viewed in a cross-sectional plane, the compression packing seal may expose substantially only a first material along a first side of the seal, and substantially only a second material along a second side of the seal.
Abstract:
A gland packing provided in a fluid apparatus such as a pump and compressed in an axial direction so as to prevent penetration leakage of a fluid is provided.The gland packing has a packing base material 11 of a predetermined length including a band-like flat braid 12 braided by moving a plurality of yarns 13 along one track K. The band-like packing base material 11 is shaped into a ring by abutting longitudinal ends 12a and 12b of the packing base material 11 so that a width direction thereof is parallel with a packing axial direction, and is then compressed in the axial direction, whereby the packing base material 11 is overlappedly folded in a packing axial direction, with a longitudinal direction of the packing base material 11 as a direction of folding lines 14.
Abstract:
Provided are a shape-retaining film which has excellent adhesion to inks and other functional layers while retaining high shape-retaining properties and a process for producing the shape-retaining film. The shape-retaining film comprises an ethylene homopolymer or an ethylene/a-olefin copolymer having a C3-6 a-olefin content less than 2 wt. %, the ethylene homopolymer or copolymer having a density of 950 kg/m3 or higher and a weight-average molecular weight (Mw)/number-average molecular weight (Mn) ratio of 5-20. The film has a tensile elasticity modulus of 6-50 GPa and has either an angle of recovery from 90 bending of 8 or less or an angle of recovery from 180 bending of 65 or less.
Abstract translation:提供一种形状保持膜,其具有优异的油墨和其它功能层的粘附性,同时保持高的形状保持性能和形成保持膜的方法。 形状保持膜包括乙烯均聚物或C 3-6烯烃含量小于2重量%的乙烯/α-烯烃共聚物。 %,密度为950kg / m 3以上的乙烯均聚物或共聚物,重均分子量(Mw)/数均分子量(Mn)比为5-20。 该膜具有6-50GPa的拉伸弹性模量,并且具有从90°弯曲恢复的角度为8°或更小,或者180°弯曲的恢复角为65°或更小。
Abstract:
The present application pertains to a braided dual-sided compression packing seal, methods for producing and using such a seal, and apparatuses suitable for producing such a seal. The braided dual-sided compression packing seal is made up of two or more different materials that are braided together in such a way that, in cross-section, the compression packing seal has an asymmetrical configuration relative to a first axis that is substantially perpendicular to the longitudinal axis and is substantially perpendicular to a side of the compression packing seal. Accordingly, when viewed in a cross-sectional plane, the compression packing seal may expose substantially only a first material along a first side of the seal, and substantially only a second material along a second side of the seal.
Abstract:
A network layer is provided. The network layer (3) comprising at least one thermoplastic biodegradable substance, whereby the network layer (3) exhibits at least one coloured first material (1) in a first direction (4) and at least one coloured second material (2) in a second direction (5), whereby the coloured first material (1) and the coloured second (2) material are in contact with each other and whereby the colouration of the first material and the colouration of the second material is different, characterized in that the first material exhibits a first absorption coefficient and the second material exhibits a second absorption coefficient, being different from the first absorption coefficient.
Abstract:
A yarn which is configured by using expanded graphite and PTEE is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced.Therefore, a yarn is formed by: forming a base member 3 configured by enveloping an expanded graphite sheet member 1 with a PTEE film 2, in a state where the PTEE film 2 and the expanded graphite sheet member 1 are aligned with each other in longitudinal direction; and twisting the base member 3. The base member 3 has an approximately circular sectional shape, and is configured by enveloping the expanded graphite sheet member 1 having a rounded sectional shape with the PTEE film 2 which is rounded in a pipe-like shape.