42results about How to "Injection achieved" patented technology

The invention relates to a combination method of a step-by-step focusing-axial mixing-high-performance liquid chromatographic separation system. The combination method includes the steps: (1) respectively setting duration of a first high-pressure six-way switching valve positioned at a sample carrying gear and a sample injection gear according to the mixing ratio of sample liquid and a flowing phase; (2) positioning the first high-pressure six-way switching valve at the sample carrying gear, positioning a second high-pressure six-way switching valve at a mixing gear, starting a high-pressure pump and an automatic sample injector; (3) starting a detector, positioning the first high-pressure six-way switching valve at the sample carrying gear, positioning a second high-pressure six-way switching valve at a non-mixing gear, and performing gradient elution, separation and detection. Timing is started after the automatic sample injector completely injects the sample liquid into a quantitative loop, the first high-pressure six-way switching valve is switched to the sample injection gear after reaching the set duration of the sample carrying gear, and then the first high-pressure six-way switching valve is switched back to the sample carrying gear after reaching the set duration of the sample injection gear. The process is repeated until sample injection is finished, and analyte is focused at a chromatographic column. By the method, sample injection volume can be further increased.

The invention provides a fully electric super speed injection molding machine, which is mainly composed of a mold closing device, an injection device and a support. The mold closing device and the injection device are placed on the support; the injection device consists of a nozzle, a machine barrel, a heating ring, a threaded rod, a loading hopper, a hopper seat, a hopper seat moving unit, a plasticizing unit, an injection ball screw, a high speed brake unit, two injection motors and an injection platform; the plasticizing unit comprises a linkage support plate, a plasticizing motor, a plasticizing toothed timing belt and a belt wheel; the high speed brake unit comprises a caliper support plate, brake calipers, a brake disc, a bearing end cap, a transmission shaft, a deep groove ball bearing, a thrust bearing, an injection toothed timing belt and a belt wheel; and the injection servo motors provide driving power for the high speed break unit. Compared with the prior art, the injection molding machine does not need high power linear motor drive injection, equipment cost is greatly reduced, the machine has the advantages of being high in responsiveness, energy saving and environment-friendly, and the like, and solves problems that hydraulic super speed injection molding machine is large in energy consumption, difficult to speed up, and the like.

A high-pressure explosion limit measuring device for flammable liquids and a mole fraction gas distribution method, including an explosion vessel and a compressed air storage tank; components and a pressure sensor; an end cover is arranged on the top of the explosion vessel, an ignition part and a liquid sampling port are arranged on the end cover, and a liquid sampling device is arranged at the liquid sampling port. The invention adds a high-pressure sealing plug on the outside of the liquid inlet gasket and the sampling plug, so that the injection sampling method can be successfully applied to the explosion limit test device of the pressure measurement method, so that the flammable liquid vapor under the high pressure initial condition The injection volume can be precisely controlled, so that the precise test of the explosion limit can be realized. The device of the invention has a simple structure and is easy to implement.

The invention relates to the technical field of blasting, in particular to a fully-automatic static blasting expanding agent automatic filling device. The device comprises a remote control device anda moving trolley wirelessly connected with the remote control device, a bearing plate which is horizontally arranged is arranged on the top of the moving trolley, a stirring mechanism is arranged on the top of the bearing plate, an expansion agent injection mechanism is arranged on the front end of the bearing plate, and a conveying mechanism is arranged between the stirring mechanism and the expansion agent injection mechanism. The device has the beneficial effects that through the stirring mechanism, automatic stirring of an expansion agent can be achieved, labor intensity of a worker is reduced, the stirring mechanism is mounted on the moving trolley, the moving trolley is wirelessly controlled by the remote control device to move, after the moving trolley is moved to an air hole, the conveying mechanism works, the expansion agent in the stirring mechanism is conveyed to the expansion agent injection mechanism, the expansion agent injection mechanism is responsible for guiding the expansion agent into the air hole, automatic expansion agent injection work is achieved, work efficiency is improved, labor intensity of a worker is reduced, and the construction period is shortened.