摘要:
An apparatus is provided for producing longitudinally corrugated product. The apparatus includes a guide roll for guiding a web of medium material, wherein at least a portion of the guide roll is adapted to be arranged at an angle relative to another portion of the guide roll. The apparatus further includes a plurality of flute forming bars oriented generally along a longitudinal axis of the web to define a first corrugating labyrinth effective to longitudinally corrugate the web to an intermediate geometry. The apparatus further includes a pair of corrugating rollers that cooperate to define, at a nip therebetween, a second corrugating labyrinth effective to longitudinally corrugate the web to a substantially final geometry. The apparatus further includes a web travel pathway for the web that follows a path around a portion of the guide roll, through the first corrugating labyrinth, and through the second corrugating labyrinth.
摘要:
An improved corrugated sheet aluminum spacer for use in pleated media air filters is disclosed. The spacers are folded in zig zag fashion along one edge in a succession of V formations having a first height and width, and along the opposite edge in a succession of V formations having both heights and widths approximately one-fifth of the first height and width. Since the fold lines are substantially parallel, there are five V formations within a given width of the opposite edge for each one along the first edge, the fold lines of the intermediate V formations extending from the second edge only a portion of the distance to the first edge, but preferably about 90% of the length of the sheet. The V formations are formed by passing the aluminum between a pair of rolls with forming blades having overlapping edges which engage the sheet. The height or amplitude of the V formations at the small end is on the order of 0.03 to 0.04 inches in aluminum sheet having a thickness of 1 to 2 mils, preferably 0.0015 inches. The 5 to 1 ratio of V formations along opposite edges is achieved by polishing the surfaces of the forming blades which contact the sheet to a degree providing surface irregularities of not more than about 10 microinches, preferably in the range of 4 to 8 microinches.
摘要:
Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.
摘要:
An apparatus is provided for producing longitudinally corrugated product. The apparatus includes a guide roll for guiding a web of medium material, wherein at least a portion of the guide roll is adapted to be arranged at an angle relative to another portion of the guide roll. The apparatus further includes a plurality of flute forming bars oriented generally along a longitudinal axis of the web to define a first corrugating labyrinth effective to longitudinally corrugate the web to an intermediate geometry. The apparatus further includes a pair of corrugating rollers that cooperate to define, at a nip therebetween, a second corrugating labyrinth effective to longitudinally corrugate the web to a substantially final geometry. The apparatus further includes a web travel pathway for the web that follows a path around a portion of the guide roll, through the first corrugating labyrinth, and through the second corrugating labyrinth.
摘要:
Disclosed is a method of fabricating bitumen impregnated cellulose ridge tiles, each ridge tile having the general shape of a profiled ridge tile plate of cross-section symmetrical about a vertical longitudinal midplane and that includes a downwardly concave central ridge extended laterally on either side by a flat that terminates in a downwardly concave corrugation, the ridge tile further including a series of ribs at each longitudinal end, the panel being in the form of a section member of cross-section that is made up by juxtaposing at least two cross-sections, each identical to the cross-section of the ridge tile plate, with transverse ribs in the vicinity of the longitudinal ends of the panel and on either side of at least one virtual transverse separation line extending between longitudinal panel edges. The panel is cut along a longitudinal line between the juxtaposed ridge tile sections.
摘要:
Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.
摘要:
Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.
摘要:
Disclosed is a method of fabricating bitumen impregnated cellulose ridge tiles, each ridge tile having the general shape of a profiled ridge tile plate of cross-section symmetrical about a vertical longitudinal midplane and that includes a downwardly concave central ridge extended laterally on either side by a flat that terminates in a downwardly concave corrugation, the ridge tile further including a series of ribs at each longitudinal end, the panel being in the form of a section member of cross-section that is made up by juxtaposing at least two cross-sections, each identical to the cross-section of the ridge tile plate, with transverse ribs in the vicinity of the longitudinal ends of the panel and on either side of at least one virtual transverse separation line extending between longitudinal panel edges. The panel is cut along a longitudinal line between the juxtaposed ridge tile sections.