3results about How to "Stable continuous production" patented technology

The utility model discloses a production system for continuously preparing a multi-component aramid copolymer, which belongs to the technical field of multi-component aramid preparation devices and comprises a premixing kettle, a continuous reactor and a double-screw reactor which are sequentially connected, the double-screw reactor is connected with a neutralizing tank I through a pipeline I, and an outlet of the neutralizing tank I is sequentially connected with a washing machine and a drying machine; the double-screw reactor is connected with a neutralizing tank II through a pipeline II, an outlet of the neutralizing tank II is sequentially connected with a defoaming kettle, a filter and a spinning solution storage tank, a heat exchanger I is arranged on a pipeline between the premixing kettle and the continuous reactor, and a heat exchanger II is arranged on a pipeline between the continuous reactor and the double-screw reactor. The front end of the continuous reactor and the front end of the double-screw reactor are both connected with a terephthaloyl chloride supply pipeline, the premixing kettle is connected with an auxiliary pipeline and a monomer supply pipeline, the production system provides matched production equipment for continuous preparation of the multi-component aramid copolymer, and stable, continuous, efficient and large-scale production of the multi-component aramid copolymer is guaranteed.

The utility model provides a feeding guide tool for a hot coiling spring, and relates to the technical field of hot coiling spring production and processing, the feeding guide tool comprises a base, the rear end of the surface of the base is connected with a coiling die, one side of the coiling die is connected with an adjusting guide assembly, and the adjusting guide assembly comprises a fixing frame; and a notch is longitudinally formed in the fixing frame, two sets of first bolts are inserted into the notch, the front ends of the two sets of first bolts are connected with a connecting frame, and threaded holes are formed in the surface of the connecting frame. According to the utility model, when the hot coiling spring main body is fed, the feeding angle of the end head can be flattened through guiding of the four groups of bearing main bodies, so that the hot coiling spring main body can be ensured to vertically enter a coiling mold to be fixed, the stable and continuous production is realized, and the production efficiency is improved through a fixing mode of the first bolt and the second bolt. And the angle of the bearing main body can be adjusted, so that the applicability of the device is improved.

The object of the present invention is to provide a method for manufacturing injection-molded articles of resin compositions containing P3HA-type resins that can be stably and continuously produced without burrs. The present invention solves the above-mentioned problem by providing a method for manufacturing injection-molded articles using a mold apparatus employing a resin composition containing P3HA-type resins, wherein the P3HA-type resin is a copolymer comprising at least one copolymer of 3HB units and other hydroxyalkyl ester units, the maximum width of the parting line connecting to the cavity within the mold in the mold apparatus is 30 μm or less, and a venting portion is provided at a specific location within the mold, the maximum width of the opening of the venting portion being 1 to 50 μm.