The invention relates to a method for the online monitoring of film quality during a production process for a plastic film, in particular a blown film or a continuously cast film, in which method the film material (1) is fed out of an outlet device (40) that is designed as a melt lug (4) by a transport device (10). The film material (1) cools on or in front of the transport device (10) and the film material (1) solidifies in front of or on the transport device (10).

A super anti-slip composite carpet with a three-dimensional TPE elastic structure, which is formed by compounding a fabric layer (1) and a TPE layer (2), wherein TPE is composed of 80-90% of styrene oxide-butadiene block copolymer and 10-20% of polypropylene, and the TPE layer (2) has a thickness of 1-2 mm. The compounding process thereof includes: step 1, preheating a transparent TPE to 80° C., and adding to a material barrel of a casting machine, stirring the TPE by a screw, and heating to a heating temperature of 140° C.-200° C. in 6-9 sections, to obtain a paste-like TPE; step 2, extruding the paste-like TPE through a metal joining pipe into a die head; step 3, making the paste-like TPE flow out through the die head in a planar cascade shape, and at the same time, passing the paste-like TPE flowed out from the die head together with a back part of a carpet fabric through a gap between an embossed roller and a rubber roller, so as to compound with the bottom surface of the fabric layer. The carpet has a good anti-slip effect and no edge warping, and is light resistant, aging resistant, non-toxic and tasteless, safe and reliable.

A pressurizing pre-impregnating die head for a fiber reinforced plastic sheet machine is provided. The die head includes a body; at least one group of fiber channels arranged in a longitudinal hole-through manner in a middle of the body, and a fiber yarn conveyed in the fiber channel. The body includes a feeding port and discharging ports, which communicate with each other. The discharging ports are located in outer sides of the fiber channel. Thermoplastic base materials in a molten state are paved on two sides of the fiber yarn. The thermoplastic base materials may be paved on surfaces of the two sides of the fiber yarn when being extruded.

An extrusion- or pultrusion device (1) for forming a profile product (2) in a production direction (Y), said device comprising: rotating die (3) having two opposite first and second side walls (5, 6) and an outer circumferential surface (4) there between, wherein the rotating die (3) comprises a first side portion (23) in connection to the first side wall and a second side portion (25) in connection to the second side wall (6) and a mid-portion (22) extending between the first and second side portions (23, 25), wherein the first and/or second side portions (23, 25) comprises first and second flange portions (18, 19) extending in a radial direction (R) with an extension greater than a radial extension of at least a part of the mid-portion (22).

An extrusion- or pultrusion device (1) for forming a profile product (2) in a production direction (Y), said device comprising: rotating die (3) having two opposite first and second side walls (5, 6) and an outer circumferential surface (4) there between, wherein the rotating die (3) comprises a first side portion (23) in connection to the first side wall and a second side portion (25) in connection to the second side wall (6) and a mid-portion (22) extending between the first and second side portions (23, 25), wherein the first and/or second side portions (23, 25) comprises first and second flange portions (18, 19) extending in a radial direction (R) with an extension greater than a radial extension of at least a part of the mid-portion (22).

An extrusion- or pultrusion device (1) for forming a profile product (2) in a production direction (Y), said device comprising: a rotating die (3) having two opposite first and second side walls (5, 6) and an outer circumferential surface (4) there between, wherein the rotating die (3) comprises a first side portion (23) in connection to the first side wall and a second side portion (25) in connection to the second side wall (6) and a mid-portion (22) extending between the first and second side portions (23, 25), wherein the width of the first channel section (9) is, at least along a portion of its length and at least along a portion of its height, less than a distance between the two opposite side walls (5, 6) of the rotating die (3).

An extrusion- or pultrusion device (1) for forming a profile product (2) in a production direction (Y), said device comprising: a rotating die (3) having two opposite first and second side walls (5, 6) and an outer circumferential surface (4) there between, wherein the rotating die (3) comprises a first side portion (23) in connection to the first side wall and a second side portion (25) in connection to the second side wall (6) and a mid-portion (22) extending between the first and second side portions (23, 25), wherein the width of the first channel section (9) is, at least along a portion of its length and at least along a portion of its height, less than a distance between the two opposite side walls (5, 6) of the rotating die (3).

An extrusion—or pultrusion device (1) for forming a profile product (2) in a production direction (Y), said device comprising:

a rotating die (3) having two opposite first and second side walls (5, 6) and an outer circumferential surface (4) there between, wherein the rotating die (3) comprises a first side portion (23) in connection to the first side wall and a second side portion (25) in connection to the second side wall (6) and a mid-portion (22) extending between the first and second side portions (23, 25), wherein the first and/or second side portions (23, 25) comprises an recess (29) extending in a radial direction (R) with an extension being less than a radial extension of at least a part of the mid-portion (22).

A rubber strip manufacturing method that includes a step of extruding a rubber from an extrusion orifice of an extruder includes: a step of forming a long rubber member by extruding the rubber from the extrusion orifice that is circular; and a step of forming a rubber strip by passing the long rubber member through a gap between a pair of rotating rollers. The gap has a shape that is the widest in a central portion in a direction parallel to rotation axes of the rollers and that narrows as a distance from the central portion increases.

A rubber strip manufacturing method that includes a step of extruding a rubber from an extrusion orifice of an extruder includes: a step of forming a long rubber member by extruding the rubber from the extrusion orifice that is circular; and a step of forming a rubber strip by passing the long rubber member through a gap between a pair of rotating rollers. The gap has a shape that is the widest in a central portion in a direction parallel to rotation axes of the rollers and that narrows as a distance from the central portion increases.