The present invention is directed to a 3D-printed tire segment model having a tread portion comprising a plurality of grooves, ribs and/or tread blocks, and a plurality of blades extending out of the ribs and/or tread blocks, wherein the tire segment model is made of a 3D-printed polymer. Moreover, the present invention is drawn to a method of making a tire mold segment, including the step of 3D-printing the above tire segment model with a polymer.

A method of coating a field joint of a pipeline places at least one body having a thermoplastics material around the field joint. The body is heated in a mold cavity around the field joint to effect thermal expansion of the thermoplastics material. Thermal expansion of the body in the mold cavity is constrained to apply elevated pressure between the body and pipe sections joined at the field joint. The elevated pressure improves bonding and fusing between the body, which forms a field joint coating, and the parent coatings and the exposed pipe sections of the pipe joints. The body need not be fully molten, which reduces the mold residence time including in-mold heating and cooling phases.

Methods of manufacturing a conveyor belt (126) include applying a rubber composition (114) to a first side of fabric reinforcement (112) and scattering productive thermoplastic elastomer pellets (106) onto a second side of the fabric reinforcement to produce an uncured belt structure (120). The uncured belt structure (120) is continuous fed into a double belt press (116) to press the productive thermoplastic elastomer pellets (106) together with the fabric reinforcement (112) to produce an uncured belt (128). Uncured belt (128) is then heated in the double belt press (116) to a temperature of at least 300 F. and maintained in the double belt press (116) under a pressure of at least 12 psi and a temperature of at least 300 C. for a residence time of at least 20 minutes to produce a cured conveyor belt (130), which is continuously withdrawn from the double belt press (116).

A mold for rubber article with a rubber forming part formed by sintering of a metal powder can be simply and easily improved. The mold for rubber article includes; a rubber forming part to mold a rubber article, while being in contact with the rubber article in a contact part, and a holding part to hold the rubber forming part. The rubber forming part is formed by sintering of the metal powder. At the time of casting of the holding part, a part or the whole of parts except for the contact part of the rubber forming part is cast in the holding part, so that the holding part and a cast-in part of the rubber forming part cast in the holding part are joined to each other.

A method for manufacturing netted dots on a light guide plate is disclosed, including: engraving, on a surface of a metal plate with a preset roughness, a female mould or a male mould corresponding to a shape of the netted dots on the light guide plate; coating the metal plate onto a surface of a roller; heating the roller so that a temperature of the metal plate rises to a preset temperature; adjusting a distance of a center of the roller in relation to a light guide plate feeding passage so that the metal plate applies a preset pressure onto the light guide plate to be machined; and making the light guide plate to be machined pass through the light guide plate feeding passage, wherein the metal plate transfer-prints a shape of netted dots of the female mould or the male mould onto the light guide plate to be machined at a preset pressure and a preset temperature to form the netted dots on the light guide plate. A device for manufacturing netted dots on a light guide plate is also disclosed.

A tire vulcanizing die comprises a tread molding surface; a sipe blade extending along the tread molding surface; and a cast projecting region extending along the tread molding surface from an end of the sipe blade; wherein width of the cast projecting region is greater than width of the sipe blade.

A heat-seal apparatus of an air-bubble machine and the method thereof, comprising: an air-bubble machine main-body; at least one electromagnetic heating assembly for producing a magnetic force; at least one magnetically conductive heat-seal assembly to heat-seal at least one air-bubble film; at least one support-portion to make an interval space between the electromagnetic heating assembly and the magnetically conductive heat-seal assembly; and at least one transmission shaft-body. The magnetic force generated by the electromagnetic heating assembly passes through the interval space to mutually interact with the magnetically conductive heat-seal assembly by electromagnetic induction, and the magnetically conductive heat-seal assembly is heated in a non-contact manner to make the heating be very rapid and uniform. The magnetically conductive heat-seal assembly is driven by the transmission shaft-body to move the air-bubble film which is simultaneously heat-sealed when being moved, thereby improving the use efficiency of energy.

A heat-seal apparatus of an air-bubble machine and the method thereof, comprising: an air-bubble machine main-body; at least one electromagnetic heating assembly for producing a magnetic force; at least one magnetically conductive heat-seal assembly to heat-seal at least one air-bubble film; at least one support-portion to make an interval space between the electromagnetic heating assembly and the magnetically conductive heat-seal assembly; and at least one transmission shaft-body. The magnetic force generated by the electromagnetic heating assembly passes through the interval space to mutually interact with the magnetically conductive heat-seal assembly by electromagnetic induction, and the magnetically conductive heat-seal assembly is heated in a non-contact manner to make the heating be very rapid and uniform. The magnetically conductive heat-seal assembly is driven by the transmission shaft-body to move the air-bubble film which is simultaneously heat-sealed when being moved, thereby improving the use efficiency of energy.

The present disclosure is directed to systems and methods for heat sealing plastic packaging. In various embodiments, the disclosure provides a sealing system including a heater block with one or more coupling mechanisms for removable attachment to a silicone shoe. The silicone shoe includes a metal plate coated with or otherwise attached to a mineral-loaded silicone layer, which provides thermal conductivity. The sealing system can be attached to a conventional sealing assembly such that the silicone layer faces a direction toward lids over plastic packages. The silicone layer has a sealing surface which provides heat and pressure to the lids over the plastic packages thereby sealing the lids to the plastic packages. Due to the coupling mechanism, a degraded silicone shoe can be easily detached and replaced with a new silicone shoe.

The present disclosure is directed to systems and methods for heat sealing plastic packaging. In various embodiments, the disclosure provides a sealing system including a heater block with one or more coupling mechanisms for removable attachment to a silicone shoe. The silicone shoe includes a metal plate coated with or otherwise attached to a mineral-loaded silicone layer, which provides thermal conductivity. The sealing system can be attached to a conventional sealing assembly such that the silicone layer faces a direction toward lids over plastic packages. The silicone layer has a sealing surface which provides heat and pressure to the lids over the plastic packages thereby sealing the lids to the plastic packages. Due to the coupling mechanism, a degraded silicone shoe can be easily detached and replaced with a new silicone shoe.