2results about How to "Reduce fluid resistance" patented technology

The invention relates to the technical field of magnetic stirring, and discloses a magnetic stirring autoclave which comprises an autoclave body, a connecting seat is mounted at the top of the autoclave body, an isolation sleeve is arranged at the top of the connecting seat, a motor mechanism is mounted at the top of the isolation sleeve and provides original power for the autoclave, a stirring shaft is mounted at the output end of the motor mechanism, and the stirring shaft is connected with the motor mechanism. A stirring shaft is arranged in the kettle body, one end of the stirring shaft extends into the kettle body and is connected with a stirrer structure, the stirrer structure stirs materials in the kettle body under the action of magnetic force, inner magnetic steel is arranged in the kettle body and is connected with the stirring shaft, and a cooling system is arranged in the kettle body. The state change of the magnetorheological fluid in the stirrer is controlled by using the magnetic field, and the telescopic shell is driven to transversely extend, so that the stirring range can be dynamically and reversibly adjusted along with the magnetic field intensity (rotating speed). The stirring volume is effectively increased, the mixing dead angle on the inner edge of the kettle is eliminated, and the process requirements of materials with different viscosities are automatically met.

The utility model discloses a mould insert of variable diameter spiral cooling waterway, including insert body, the insert body inside is equipped with spiral cooling waterway, spiral cooling waterway includes a plurality of spiral watercourse unit along the axial distribution of insert body, adjacent spiral watercourse unit's diameter is different, and spiral watercourse unit's diameter gradually increases or gradually reduces along the cooling liquid flow direction, spiral watercourse unit includes the cooling channel of spiral and is provided with the connecting portion at the both ends of cooling channel, and adjacent spiral watercourse unit is communicated through the connecting portion. Through the spiral watercourse unit of diameter gradual change, realizes the dynamic regulation of cooling liquid flow rate according to the principle of fluid mechanics, and the heat dissipation demand of accurate matching mould different parts is promoted, and the cooling efficiency is improved significantly, and the forming cycle is shortened.