38results about How to "Improve plasticizing quality" patented technology

The invention relates to the technical field of pipeline connection structures and equipment thereof, and relates to a double-wall corrugated pipe injection molding flaring machine. The double-wall corrugated pipe injection molding flaring machine comprises a feeding mechanism, a conveying mechanism and an extrusion mechanism which are sequentially connected, wherein the extrusion mechanism comprises a mold-locking mechanism which is connected with the conveying mechanism, and a single-screw extruder; after entering the mold-locking mechanism, a material is extruded by the single-screw extruder; the single-screw extruder is connected with a hydraulic station. The double-wall corrugated pipe injection molding flaring machine adopts the single-screw extruder which is made of polyethylene (PE) and is high in efficiency and low in power consumption, so that the material amount required by a flaring part of a PE double-wall corrugated pipe is realized at high speed and with high yield, the material is high in plasticizing quality, and the flaring quality is ensured. According to the double-wall corrugated pipe injection molding flaring machine, in an injection molding flaring manner, the defects of the PE double-wall corrugated pipe for flaring in the conventional manner can be overcome, the flaring quality is high, the length of a pipe material is changeable, and the flaring shape can be determined by a customer.

The invention discloses a testing device that realizes the melting and plasticizing of polymers by utilizing ultrasonic frequency vibration, wherein, a material cylinder (4) is arranged on a stand (9); a capillary orifice mode (18), a tool head (5), a thermocouple (2), a heating ring (3) and a high temperature melt temperature pressure sensor (19) are arranged in the material cylinder (4); the lower end of a guide pillar (8) is arranged on the stand (9), the upper end of the guide pillar (8) is provided with a frame(11), the frame(11) is provided with a hydraulic transmission and control system, a guide bracket (16) is glidingly arranged on the guide pillar (8), the guide bracket (16) is provided with an ultrasonic vibration system, the tool head (5) is connected with the ultrasonic vibration system by a way of transmission, the ultrasonic vibration system is connected with the hydraulic transmission and control system by a way of transmission, the ultrasonic vibration system is provided with a displacement sensor (12), and the high temperature melt temperature pressure sensor (19) and the displacement sensor (12) are electronically connected with a computer data acquisition system. In terms of function, the testing device of the invention not only can simultaneously realize the melting and plasticizing of polymer materials by utilizing ultrasonic frequency vibration and detect the formability of ultrasonic plasticizing, but also can satisfy the needs of conventional processability test for the polymers.

The invention relates to a constant temperature device for plasticization of an air tubing cloth. The constant temperature device comprises a hollow barrel body, wherein annular sealing discs are arranged at two ends of the hollow barrel body, the annular sealing discs and the side wall of the barrel body can form a channel through which the air tubing cloth can penetrate, a circulating device is arranged on the barrel body and comprises at least two air ducts arranged in the side wall of the barrel body, an air inlet and an air outlet of each air duct are communicated with the channel, each air inlet is connected with a fan, a heating pipe located on the surface of the side wall of the barrel body is arranged above the air outlet, a perforated plate is adaptively arranged above the heating pipe, a plurality of exhaust holes are distributed in the perforated plate, and a temperature sensor is arranged in the barrel body. According to the constant temperature device for plasticization of the air tubing cloth, gas in the barrel body can circulate and be heated continuously through cooperation of the air ducts and the fan and the adaptation of the heating pipe and the perforated plate, temperature or heat in the barrel body can be distributed uniformly, and the plastifying quality of the air tubing cloth in the barrel body can be improved; and besides, the power of the heating pipe can be adjusted by the temperature sensor, and automatic constant temperature adjustment in the barrel can be realized.

The invention discloses a multifunctional flow guider. A driving shaft driven by a speed reducing motor is arranged on a head cover of a desulfuration tank, a flow guider is arranged on the driving shaft which extends into the desulfuration tank, the flow guider has the structure that the upper part of the driving shaft is provided with symmetrical horizontal scratch boards, the top surfaces of the horizontal scratch boards are matched with the inner wall of the head cover of the desulfuration tank, the outer ends of the horizontal scratch boards are respectively and fixedly connected with a vertical scratch board, the outer side faces of the vertical scratch boards are matched with the inner wall of a cylinder of the desulfuration tank, the inner side of one vertical scratch board is connected with a turbulent flow board having an inclined angle with the vertical plane, the middle of the driving shaft is provided with symmetrical horizontal support arms, one straight support arm is connected with the vertical scratch boards, the other support arm is connected with the turbulent flow board, and the symmetrical support arms arranged at the lower part of the driving shaft are respectively connected with the vertical scratch boards. After the multifunctional flow guider is used, waster rubber powder in the desulfuration tank can quickly rotate and can be rubbed with one another to generate heat under the action of the flow guider, and the track of the rotating rubber powder can be changed in a flow guide way, so that the rubber powder can be evenly heated, the plastification speed can be increased, the multifunctional flow guider is low in energy consumption, and the production cost can be reduced.

The invention relates to a method and a device for matching materials among adjacent blade plasticization transportation units of a blade squeezer. The blade squeezer consists of a group of blade feeding units and a plurality of blade plasticization transportation units, which are connected in series in an overlapping manner; the adjacent blade plasticization transportation units are connected through baffles having stream guidance and sealing effects; and the materials of the blade units on the upstream smoothly flow into the blade units on the downstream through material outlets in the baffles, so that the transition of the materials among the adjacent blade plasticization transportation units can be realized. With the adoption of the method provided by the invention, a plasticization transportation mechanism of entire positive displacement transportation of the blade squeezer can be realized; and meanwhile, the flow dead angle in a molding process can be avoided; the remaining time of the materials at a high temperature is reduced; the distribution of remaining time of the materials is uniform; and the thermal degradation of the materials can be reduced.

The invention discloses a method and a device for plasticizing plastics based on a Nd: YAG solid state laser, relates to the laser micro-molding field, and is suitable for plasticizing, molding and processing micro-scale plasticized micro-plastics, such as miniature gears, connectors, chips and the like. According to the invention, the heat effect caused by interacting of a laser energy field and a polymer can be used, the plastic is irradiated under the laser with high energy density to absorb light energy, a rapid temperature rising is realized to reach the fusing temperature so that the micro-molding processing can be completed. The device of the invention comprises an Nd: YAG laser, a laser beam regulator, a restraint layer, a plasticizing cylinder, a molding die, a work bench and a controller. The method of the invention is used for plasticizing or molding plastics, and has the characteristics of high plasticizing efficiency of plastics, good quality, energy saving, environmental protection, simple and easy operation and good processing flexibility, and can realize the plastic micro-molding processing with high efficiency and environmental protection.

The invention provides a continuous EPE physical foamed plate extruder which comprises a first-stage extruder body, a second-stage extruder body and a pipeline. The first-stage extruder body comprises a first-stage screw barrel and a first-stage screw. The second-stage extruder body comprises a second-stage screw barrel and a second-stage screw. The first-stage screw barrel and the second-stage screw barrel communicate through the pipeline. The continuous EPE physical foamed plate extruder is characterized in that the first-stage screw sequentially forming a first feeding section, a barrier section, a first stirring section and a first mixing section in the axial direction. A plurality of pin sets are arranged on the screw groove surface of the pin stirring section. According to the continuous EPE physical foamed plate extruder, product quality can be improved while the yield is increased and production efficiency is improved, and production energy consumption can be reduced.

The invention discloses a screw speed control method for improving the plasticizing quality of an injection molding machine. Substitute it into the screw speed control function calculation model to obtain the screw speed control scheme of the speed with respect to the real-time screw displacement, and transmit it to the servo control system of the plasticizing motor of the injection molding machine to control the screw speed of the current cycle in real time, so as to realize the melting process. Uniformity of body plasticization quality. The method for controlling the screw rotation speed for improving the plasticizing quality of the injection molding machine of the present invention is beneficial to improve the plasticizing quality of the plastic melt, improve the melt uniformity, and reduce the number of mold trials caused by equipment or material replacement.