A method of welding a sleeve (10) to a tube (20) includes putting onto end portions (11) of the sleeve (10) respective protective elements (40), of a material that cannot be fused with the materials of the sleeve (10) and of the outer coating (24) of the tube (20); applying on each end portion (11) of the sleeve (10) covered by a protective element (40) a respective heat-shrink element (30); supplying each heat-shrink element (30) with a quantity of heat (Q) which by heating it causes it to shrink and compress the respective end portion (11) of the sleeve (10) against the tube (20), where this quantity of heat (Q) is transmitted to the end portion (11) of the sleeve (10) to obtain a welding of the sleeve (10) to the tube (20) and produce a device (1) comprising the tube (20) with the sleeve (10).

A method of welding a sleeve (10) to a tube (20) includes putting onto end portions (11) of the sleeve (10) respective protective elements (40), of a material that cannot be fused with the materials of the sleeve (10) and of the outer coating (24) of the tube (20); applying on each end portion (11) of the sleeve (10) covered by a protective element (40) a respective heat-shrink element (30); supplying each heat-shrink element (30) with a quantity of heat (Q) which by heating it causes it to shrink and compress the respective end portion (11) of the sleeve (10) against the tube (20), where this quantity of heat (Q) is transmitted to the end portion (11) of the sleeve (10) to obtain a welding of the sleeve (10) to the tube (20) and produce a device (1) comprising the tube (20) with the sleeve (10).

Systems and methods are disclosed that include providing a multilayer tubing construction with an inner layer, an intermediate layer, and an outer or third layer formed from a material comprising a non-phthalate plasticizer, such as TOTM, DOA, DOTP, or combinations thereof. The multilayer tubing may be suitable for carrying a fuel, or other flammable substances therethrough, and resists delamination between layers when exposed to high humidity climates.

A method for producing a fused unplasticised polyvinyl chloride (UPVC) article (126) is provided. The method includes feeding an UPVC blend (103) into a co-rotating twin-screw extruder (100). The method further includes melting the UPVC blend (103) and conveying fused UPVC to an outlet (120) of the co-rotating twin-screw extruder (100). The method also includes collecting the fused UPVC from the outlet (120) at a rate of at least 100 kilograms/hour per litre of free volume (124) of the co-rotating twin-screw extruder (100).

A method for producing a fused unplasticised polyvinyl chloride (UPVC) article (126) is provided. The method includes feeding an UPVC blend (103) into a co-rotating twin-screw extruder (100). The method further includes melting the UPVC blend (103) and conveying fused UPVC to an outlet (120) of the co-rotating twin-screw extruder (100). The method also includes collecting the fused UPVC from the outlet (120) at a rate of at least 100 kilograms/hour per litre of free volume (124) of the co-rotating twin-screw extruder (100).

The present disclosure discloses an anti-fatigue mat and methods for making the same. The method for making an anti-fatigue mat includes providing a leather comprising a first surface and a second surface opposite to the first surface, forming a color layer on the first surface, cutting the leather, putting the cut leather into a mold, injecting an elastomeric material into the mold, curing the elastomeric material to form an elastic layer on the second surface and a plurality of concave structures corresponding to the plurality of protruding structures on the first surface, and polishing the first surface to remove the color layer without caving towards the second surface. The anti-fatigue mat can have anti-fatigue performance and vivid stereoscopic impression, where being simple to fabricate with low costs and can be industrialized.

A replica master mold 10 comprises: a base material layer 11; and a surface shape body 12 formed on the base material layer 11 and having a fine irregular pattern, wherein a softening temperature of the surface shape body 12 is higher than a softening temperature of the base material layer 11.

The present disclosure discloses an anti-fatigue mat and methods for making the same. The method for making an anti-fatigue mat includes providing a leather comprising a first surface and a second surface opposite to the first surface, forming a color layer on the first surface, cutting the leather, putting the cut leather into a mold, injecting an elastomeric material into the mold, curing the elastomeric material to form an elastic layer on the second surface and a plurality of concave structures corresponding to the plurality of protruding structures on the first surface, and polishing the first surface to remove the color layer without caving towards the second surface. The anti-fatigue mat can have anti-fatigue performance and vivid stereoscopic impression, where being simple to fabricate with low costs and can be industrialized.

A replica master mold 10 comprises: a base material layer 11; and a surface shape body 12 formed on the base material layer 11 and having a fine irregular pattern, wherein a softening temperature of the surface shape body 12 is higher than a softening temperature of the base material layer 11.

According to the invention, there is provided a drainage device (10) including a body (14) defining a passage (16) having opposing end regions (18) which extend between and interconnect overflow and drainage apertures (20) and (22) defined in the receptacle (12) to permit fluid flow therebetween, typically from the overflow aperture (20) via the drainage aperture or plug hole (22) to a drain (not shown).