摘要:
A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.
摘要:
The apparatus (1) includes a frictional heater (2), within which a rotor (3) is utilised, which includes a substantially cylindrical member (4) disposed about a central axis (5). The rotor (3) is rotatably mounted within the frictional heater (2) such that the axis of rotation is co-extensive with the central axis (5). The substantially cylindrical member (4) defines an outer periphery (6) configured, in use, to bear against plastic whilst rotating. To help address various issues that may otherwise arise during operation of the apparatus (1), the outer periphery has a diameter of between approximately 0.2 m and approximately 2.0 m inclusive.
摘要:
A method of supplying adhesive particulates from a supply container to an adhesive melter includes fluidly coupling an adhesive transfer structure between the adhesive melter and the supply container, lowering an internal surface temperature of the adhesive transfer structure by directing cooling air through the adhesive transfer structure, and moving the adhesive particulates from the supply container into the adhesive melter for melting the adhesive particulates into a fluid adhesive after lowering the internal surface temperature of the adhesive transfer structure. A hot melt adhesive system includes a supply container for storing adhesive particulate, an adhesive melter, an adhesive transfer structure coupled to the supply container and the adhesive melter for transferring cooling air and adhesive particulate toward the adhesive melter, and a control configured to transfer the cooling air through the adhesive transfer structure before the adhesive particulate is transferred toward the adhesive melter.
摘要:
An adhesive dispenser includes: a vessel has an open top and a closed bottom, and defines an interior cavity; a handle is affixed on one side of the vessel; a lid with an adhesive charge port closes the open top; a pour spout opens through the lid and is positioned on a side of the cavity opposite the handle, the pour spout includes a channel formed in the cavity and the channel extends from the pour spout to adjacent the bottom of the cavity; and a heater including a heating element for melting adhesive placed in the cavity, and a fin extending axially from the bottom of the cavity. The method for dispensing includes pouring a liquid adhesive from the dispenser.
摘要:
An adhesive dispenser includes: a vessel has an open top and a closed bottom, and defines an interior cavity; a handle is affixed on one side of the vessel; a lid with an adhesive charge port closes the open top; a pour spout opens through the lid and is positioned on a side of the cavity opposite the handle, the pour spout includes a channel formed in the cavity and the channel extends from the pour spout to adjacent the bottom of the cavity; and a heater including a heating element for melting adhesive placed in the cavity, and a fin extending axially from the bottom of the cavity. The method for dispensing includes pouring a liquid adhesive from the dispenser.
摘要:
Provided is a powder slush molding composition including a thermoplastic polyester elastomer (TPEE) having a peak melting point of 130 to 200° C., as measured by differential scanning calorimetry (DSC). The composition has a Shore A hardness not higher than 95 and a melt index (190° C., 2.16 kg) of 10 to 100 g/10 min.
摘要:
A thermal reservoir including a heating section and an upper section is provided. The upper section defines a storage cavity. The upper section is formed from an insulated, non-stick or insulated non-stick material. The upper section is fluidly connected to the heating section and upstream from the heating section for receiving material to be heated prior to the heating section.
摘要:
Methods of making oxidation and wear resistant polymeric materials using peroxide cross-linking and high temperature melting process are disclosed. A multiple step procedure for enabling the manufacturing of such material without size limitations is also disclosed.
摘要:
A melter for heating and melting particulate hot melt adhesive into a liquefied form is disclosed. The melter includes a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet. A flexible hopper holds a supply of the particulate hot melt adhesive and a particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device.