摘要:
Provided is a temperature control device having at least one temperature control branch connected to a feed, and a pump system including at least one pump for the delivery of temperature control medium in the feed. Additionally, the temperature control device is provided with at least one sensor by which at least one of the parameters from the group of temperature, through-flow amount and pressure can be detected, and a control or regulating device for regulating or controlling a delivery of the pump system, to which signals from the at least one sensor can be fed.
摘要:
A temperature control apparatus includes a temperature control branch connected to a feed line for a temperature control medium, a pump system including a pump for conveying the medium, a pump open-loop or closed-loop control device for controlling the output of the pump system, a throttle device having a variable degree of opening for throttling a quantitative through-flow of the medium in the temperature control branch, and an open-loop or closed-loop control device with the degree of opening of the throttle device as a setting value and with a control variable from the group: degree of opening of the throttle device, temperature, temperature difference, through-flow, pressure or a physical value to be derived from that group. The pump open-loop or closed-loop control device provides for open-loop or closed-loop control of the delivery output of the pump system depending on the degree of opening of the throttle device.
摘要:
A mold-cooling system for cooling a heated mold by supplying cooling medium from a cooling medium supply source to a medium flow path provided for a mold. The mold-cooling system is characterized in that a discharge side path connected to an outlet side of the medium flow path of the mold is communicated with a heat exchanger condensing the cooling medium gasified and discharged from the medium flow path.
摘要:
The present invention provides a method and system for the management of multiple heated mould tools (302, 304) in a facility with limited resource, by monitoring energy usage of a first mould tool (302), and starting a second mould tool (304) when enough energy is available.
摘要:
A tool system for moulding an article is provided which comprising a tool (100) having a tool surface (104) for forming an article, the tool surface comprising a plurality of tool zones (106). Heating and cooling means (102a) are independently associated with at least some of said tool zones (106). A control means is adapted to control the heating and cooling means (102a) to individually heat or cool the tool zones (106) having heating and cooling means (102a) associated therewith so as to regulate the heat transfer into and out of the article at each tool zone (106) at any particular time throughout the moulding process.
摘要:
A thermal system (20) for rapidly heating and cooling a mold surface (24) of a tool (26) comprises a heater-subsystem (40) in fluid communication with the tool (26). The heater-subsystem (40) comprises a heater (42), a tank (44), and a three-way valve (46). The tank (44) contains a mass of heated thermal fluid. The system (20) further comprises an exchanger-subsystem (49) in fluid communication with the heater-sub system (40) and the tool (26). The exchanger-subsystem (49) comprises an exchanger (51) and a three-way valve (53). The system (20) further comprises a chiller-sub system (48) in fluid communication with the exchanger-subsystem (49). The chiller-subsystem (48) comprises a chiller (50), a tank (52), and a three-way valve (54). The tank (52) contains a mass of cooled thermal fluid. A controller (56) can be used to control and/or instruct the subsystems (40,48,49). The system (20) and tool (26) can be used for forming a composite article (22), such as a carbon fiber composite (CFC) article (22). A method utilizing the system (20) is also provided.
摘要:
A method of forming a composite article (22) comprises the steps of providing a tool (26) having a mold surface (24), providing a preform (62), and disposing the preform (62) on the mold surface (24). The method further comprises the steps of heating the mold surface (24) within a first period of time (Tt1), applying pressure to the preform (62) within a first period of time, and maintaining temperature of the mold surface (24) for a second period of time (Tt2). The method further comprises the steps of maintaining pressure for a second period of time, reducing pressure on the composite article (22), cooling the mold surface (24) within a third period of time (Tt3), and removing the composite article (22) from the mold surface (24). The total of Tt1+Tt2+Tt3 is generally no greater than about 30 minutes. A thermal system (20) comprising a heater-subsystem, and optionally, a chiller-subsystem, can be used to heat and cool the mold surface (24).
摘要:
For controlling temperature in the molding of plastics, metal, ceramic, or die-casting, a circulator supporting a molding machine includes a fixed displacement pump driven by an electronic servo motor for volumetric metering of thermal fluid to or from the molding machine. A pre-set or dynamically controlled volume and flow rate profile matches the heating and cooling requirement of a molding machine and process. Volumetric metering may be based on parameters such as time, machine cycle status, temperature, pressure, and/or flow rate. Fluid may be circulated through the mold at positive or negative pressure at fixed, variable, or pulsed flow. The supply side in a fluid loop may be restricted so as to cause a pressure drop in or upstream of the mold, die or barrel, and seed bubbles may be injected into the fluid flow to excite vaporization and lowering of the fluid temperature.
摘要:
A fluid reticulation system for a composite component production assembly, the production assembly including at least one pressure chamber (25) having a chamber wall (21) locatable adjacent a composite lay-up or mold, at least a portion of the chamber wall (21) being resiliently deformable, the fluid reticulation system being locatable within the inner volume of the pressure chamber (25) and including means (5) for distributing fluid towards an inner surface (22) of the chamber wall as the fluid enters the pressure chamber.
摘要:
An apparatus for controlling temperatures of a mold includes a first heating system, a second heating system, and a cooling system. The first heating system is used for pre-heating medium therein. The second heating system is used for further heating the pre-heated medium provided by the first heating system, and providing the heated medium for the mold after draining out preexisting leftover medium in the mold, before injection molding. The cooling system is used for cooling down the mold after injection molding. A relative method for controlling temperatures of the mold is provided as well.