A method for making an acoustic component includes a plurality of hollow complex acoustic elements, the method including heating a film of thermoplastic material to a first temperature above the glass transition temperature of the film; shaping the heated film of thermoplastic material in a tool including a mould which has a plurality of mould cavities having a shape corresponding to the shape of the complex acoustic elements of the acoustic component to be made, the heated film of thermoplastic material being shaped locally in each of the mould cavities, at least the mould being kept at a second temperature above the glass transition temperature of the thermoplastic material; cooling the mould; and removing a complex acoustic multi-element panel including a plurality of hollow complex acoustic elements from the mould.

Disclosed are a method for preparing a closure end of an occluder, and a device for preparing a closure end of an occluder. The method includes: step 100, performing a first pressing on a front end of a strip, and simultaneously hot-melting the front end of the strip to preform the front end of the strip; step 200, performing a second pressing on the preformed front end of the strip, and simultaneously hot-melting the preformed front end of the strip, so as to form the preformed front end of the strip; and step 300, cooling the formed front end of the strip to obtain the closure end. Through first pressing and hot-melting, a strip sets and is formed into a preset shape; and then, through second pressing, the strip is better fitted to a mold and debubbled, so that a formed closure end has a higher strength.

Disclosed is a method for producing an automobile sound absorbing member through molding. In the method, a first fibrous layer and a second fibrous layer are bonded to each other and molded at the same time, so that a working process and a process cycle are simplified, thereby improving production speed and reducing investment for equipment and facility. The method includes (a) preparing a first fibrous layer and a second fibrous layer, (b) providing an adhesive member between the first fibrous layer and the second fibrous layer and placing an aggregate of the first fibrous layer, adhesive member, and the second fibrous layer in a molding machine, and (c) pressing an upper mold and a lower mold of the molding machine so that the first fibrous layer and the second fibrous layer are bonded and molded into a molded body.

A method of placing a protective member on a workpiece includes a sheet producing step of heating a plate-shaped thermoplastic resin to soften or melt the same while gripping and pulling outer edges of the thermoplastic resin in at least four directions to produce a sheet-like protective member, and after the sheet producing step, an integrating step of heating and bringing the sheet-like protective member into intimate contact with the workpiece to integrate the workpiece and the protective member with each other.

This thermoforming device, which performs thermoforming of a continuously supplied resin sheet to simultaneously mold two or more rows of containers in the feed direction of the resin sheet, has: protruding linear portions of a leading clamp forming thin-walled portions in a direction perpendicular to the feed direction between the two rows of the containers; and protruding linear portions of an upper mold, wherein the protruding linear portions have a cooling means and do not raise the temperatures of the thin-walled portions to a crystallization temperature during heat set thermoforming.

Process for manufacturing a load-bearing structure for tailgates of vehicles by thermoforming, the process comprises obtaining a thermoforming press comprising a male mold and a female mold, wherein the male mold and the female mold comprise variable maximum distances between the male mold and the female mold, heat a sheet of thermoplastic material with dimensions equivalent to the load-bearing structure for tailgates of vehicles, cooling down the male mold and the female mold, placing the sheet of thermoplastic material between the male mold and the female mold, adjusting the male mold and the mold female causing the pressing of the sheet of thermoplastic material to obtain the load-bearing structure and dimensionally stabilize the load-bearing structure.

A resistive film heater includes: a resistive heating layer comprising lignin-based electrically conductive carbonaceous materials; and electrical terminals attached to the resistive heating layer for supplying electrical current therethrough.

Improved separator film compositions, methods and systems for use in producing thermoformed dental appliances are disclosed.

Cushions, methods, and manufacturing systems for making the same are disclosed. The cushions may be foamless such as being made from a body of entangled and/or intertwined polymeric strands. The manufacturing systems may include a die such as die bars having a plurality of orifices that cooperate with a plurality of receptacles and actuators for discharging a plurality of fasteners from the receptacles, through the die into the cushions. In a refinement, the die may be heated such that a skinned over membrane is created in the cushion to retain the plurality of fasteners. A trim cover may cooperate with the plurality of fasteners such that it is attached to the cushion.

Systems and methods for providing heat to a three-dimensional article are disclosed. The method can include inserting at least a portion of the article over a form. The method can further include inserting the form and article at least partially within an article container and moving the form and article into engagement with a flexible membrane where the membrane and the article container form an airtight chamber. The method can further include exposing the airtight chamber to a pressure less than atmospheric pressure to pull the membrane against at least a portion of the article and exposing the membrane to a heated deformable media.