摘要:
A method of producing an elongate calibrated extrusion of a formable material. The formable material most suitably comprises a thermoplastics polymer having an outer skin (94) and a foamed core (91). It may be formed using an extrusion apparatus (100) having an extruder (101) and a co-extrusion die (104) which delivers the extrudate between opposed sizing conveyors (106). These travel at a speed suitable to allow them to continuously take up the flowable extrudate. The flowable extrudate is caused to adhere sufficiently to the surface of the sizing conveyors in order to cause the extrudate to maintain its shape. The extrudate is detached from the recirculating sizing conveyors after it has solidified sufficiently to exhibit the desired dimensional accuracy. Product exemplified includes relatively high Young's Modulus composite product fabricated into materials handling pallets.
摘要:
The invention relates to a method and a device for preparing a polyurethane composite, the polyurethane composite prepared by the method, and the use thereof.
摘要:
Methods and systems for manufacturing a foam board system are disclosed. In some examples, a system includes an applicator to distribute one or more fluids onto a substrate. One or more sensors configured to measure one or more characteristics of the one or more fluids. A control circuitry is configured to compare the one or more measured characteristics to one or more threshold characteristics, and to adjust one or more operating parameters of the system in response to a characteristic of the one or more measured characteristics falling outside a threshold of the one or more threshold characteristics.
摘要:
A manufacturing line for manufacturing a multilayer foam panel member including: (a) a storage of the components for a foam-forming fluid reactive mixture; (b) a dosing system for flowing the components of the foam-forming fluid reactive mixture to a chamber for mixing the components of the foam-forming fluid reactive mixture to form foam-forming fluid reactive mixture; (c) a flexible fluid dispensing device for receiving the foam-forming fluid reactive mixture; (d) a means for flowing the foam-forming fluid through the flexible fluid dispensing device to dispense the foam-forming fluid; (e) a moving first bottom sheet substrate for receiving the foam-forming fluid dispensed from the flexible dispensing device; (f) a means for allowing the foam-forming fluid to react, as the fluid travels on the moving bottom sheet substrate, wherein a foam material forms inbetween the moving first bottom sheet substrate and a second top sheet substrate to form a panel structure; (g) a panel structure comprising the foam material disposed inbetween the top metal sheet and the bottom metal sheet; (h) a means for curing the foam material to form an integral part of the top and bottom sheet substrates and to form a cured panel structure; and (i) a cutting means for cutting the panel structure into predetermined discrete panel member sections; and a process for manufacturing a multilayer foam panel member using the above manufacturing process.
摘要:
A system for continuously producing flexible carpet cushion having a mixing assembly positioned proximate to a slat press that is configured to dispense an uncured polyurethane (PU) foam onto a lower substrate associated with the moving lower plate of the slat press. As the uncured PU foam enters the slat press, an upper substrate associated with the upper plate of the slat press contacts the upper surface of the dispensed PU foam and the PU foam undergoes blowing to a gauged thickness and cures between the upper and lower plates of the slat press.
摘要:
The invention relates to a production system for producing a prefabricated building element, comprising a device (22) for providing a first cover layer (62), a double belt device (46) and a device (44) for applying insulating material onto the first cover layer (62), which is arranged in the production direction upstream of the double belt device (46). In order to produce a cost-effective prefabricated building element that has a simple design, a tool (36) is provided between the device (22) for providing the first cover layer (62) and the device (46) for applying insulating material. The first cover layer (62) is guided through said tool, and said tool is used to form lateral edges of the first cover layer (62), wherein at least a part of the formed lateral edges forms a lateral wall.
摘要:
An apparatus for continuous production of insulating and draining boards, comprising a conveyor arrangement for conveying a mixture of beads of foamed plastic and a binder agent from an input end to an output end of the conveyor arrangement, the conveyor arrangement comprising an endless bottom conveyor belt and an endless top conveyor belt, the top conveyor belt being arranged above the bottom conveyor belt and defining therewith a conveyor path for conveying the mixture, and a drying unit for creating a drying environment, wherein the bottom conveyor belt and the top conveyor belt are arranged such that a first part of the conveyor path forms a compacting section for compacting a mixture of beads of foamed plastic and a binder agent, and wherein the drying unit is arranged to create a drying environment in a drying section of the conveyor path extending along a second part of the conveyor path arranged downstream of the first part, the drying section being arranged for drying the compacted mixture of beads of foamed plastic and binder agent.
摘要:
A continuously extruded non-crosslinked polyolefin foam comprising a) a blend of a base resin such as low density polyethylene (LDPE) and a modifier resin b) a permeability modifier and c) a nucleator, and a process of manufacturing the foam.
摘要:
A foam extrusion process using multiple independent restraining elements (50) by extruding a foamable composition from a die to form an expanding polymeric foam and then contact a surface of the foam with multiple independent restraining elements, each having a width less than the width of the expanding foam.
摘要:
A continuous forming apparatus for molding foam material into foam products that includes a first endless belt and a second endless belt that cooperates with the first endless belt to mold the foam material. The continuous forming apparatus may also include a first plurality of cleats and a second plurality of cleats opposed to the first plurality of cleats that support the first endless belt and the second endless belt respectively. The first plurality of cleats may include a three-dimensional abutment surface that provides transverse and lateral support to the first endless belt. Additionally, the continuous forming apparatus may include a first frame disposed to support the first plurality of cleats, a second frame disposed to support the second plurality of cleats, and a drive mechanism for imparting motion to the first endless belt, the second endless belt, the first plurality of cleats, and the second plurality of cleats.