38results about How to "Achieve precise ratio" patented technology

The invention provides a multi-proportion glue gun for soft packages. The multi-proportion glue gun comprises a glue outlet connector, a first glue containing cavity and a second glue containing cavity, wherein the first glue containing cavity and the second glue containing cavity are communicated with the glue outlet connector. A driving screw and a first glue pushing sliding block in threaded fit with the driving screw are arranged in the first glue containing cavity. A driven screw and a second glue pushing sliding block in threaded fit with the driven screw are arranged in the second glue containing cavity. A driving wheel is arranged on the driving screw, a driven wheel matched with the driving wheel is arranged on the driven screw, and the driving screw is connected with a driving mechanism. The glue gun is simple in structure, capable of saving labor in use and capable of simultaneously operating flexible packaged double-component glue substances packaged in a split mode; in addition, accurate proportions of the glue substances can be achieved, and the advantages of the double-component glue substances can be fully performed.

The invention discloses a method and a system for continuous multistage cooling and dewaxing of oil. The method comprises the following steps that: A, a predetermined ratio of a filter aid is added into corn oil and the corn oil and the filter aid are mixed uniformly; B, the corn oil uniformly mixed with the filter aid successively enter a plurality of crystallizing tanks in a one-by-one overflowing manner for cooling and crystal growing step by step; and C, the corn oil with grown crystals in the plurality of crystallizing tanks is filtered and dewaxed, so dewaxing is completed. According to the method and the system for continuous multistage cooling and dewaxing of oil provided by the invention, step-by-step cooling and crystal growing and better control of the crystallization rate are realized through arrangement of the plurality of crystallizing tanks and usage of the one-by-one overflowing manner, and formed crystal particles are big; a fast filtration speed is obtained by filtering the corn oil one tank after another tank, so production efficiency is improved and continuous production is realized; moreover, arrangement of an automatic filter aid adding device enables the filter aid and the oil to be accurately proportioned and stability of product quality to be ensured.

The invention discloses a gas atomizing and spraying device which comprises a body and a plurality of storage tanks for storing high molecular raw materials, wherein the storage tanks are connected with the body, the top of the body is provided with a mixing unit connected with the storage tanks, the bottom of the mixing unit is provided with at least one unloading channel communicated with the mixing unit, the side wall of the body is provided with at least one gas inlet channel, the end part of the gas inlet channel is provided with at least one nozzle covering the tail end of the unloading channel, and the nozzle can disperse and atomize the mixed materials from the unloading channel. The gas atomizing and spraying device can be used for mixing, atomizing and spraying glue stock, and can spray an even glue film on the base plate of a coiled material, thereby greatly improving the utilization ratio of the viscose glue and the quality of the coiled material, protecting the health of operating personnel from threats and protecting the environment from pollution.

The invention relates to a system for testing heat transfer and flow characteristics of a multi-hydrocarbon mixed refrigerant heat exchanger. The system comprises a mixed refrigerant proportion unit, a mixed refrigerant circulation loop, a hot water circulation loop and a cooling water circulation loop, and mainly comprises hydrocarbon material tanks, a mixed refrigerant vaporizer, a proportioning tank, a gas component analyzer, a compressor, a vacuum pump, a cold water tank, a hot water tank, cold water circulating pump, a hot water circulating pump, a cooling tower, a measuring meter and the like. Hydrocarbon materials are heated and vaporized by a proportion according to requirements of test conditions and then sent to the proportioning tank, analysis is performed on components of a mixed refrigerant at an outlet of the proportioning tank through the gas component analyzer, the dose of the initially filled hydrocarbon materials is corrected, and the test condition satisfying mixed refrigerant is pressurized through the compressor, then forms a mixed refrigerant of a test prototype and completes heat exchange with circulating cooling water from the cooling water tank. The testing system provided by the invention realizes accurate proportioning of the mixed refrigerant, and actual operating conditions of the mixed refrigerant heat exchanger are reproduced. Meanwhile, the testing system has a flow regulating function and can satisfy test conditions under different flow and pressure conditions.

The invention relates to a technology for testing mechanical properties of materials, and aims at providing a material delayed fracture test method under high-pressure hydrogen-doped natural gas environment. According to the method, a steel ball is pushed through a loading shaft so as to apply a load on a disk slice sample, and the other side of the disk slice sample is in contact with high-pressure hydrogen-doped natural gas, so that the disk slice sample suffers the effect of the load while being in contact with the high-pressure hydrogen-doped natural gas; and data obtained by carrying outa delayed fracture test can be used for evaluating the performance damages of materials under the high-pressure hydrogen-doped natural gas environment. According to the method, a complicated servo test mechanism is avoided so that the equipment volume is decreased and the cost is reduced; the hydrogen leakage probability is reduced and the reliability and safety of the device are improved; the test time is shortened so that the test efficiency is improved; the test temperature requirement is satisfied and the influences, on hydrogen embrittlement, of temperature are tested; the accurate matching of hydrogen / natural gas mixed gas is realized; and a hydrogen concentration detection device is utilized to carry out hydrogen leakage detection, so that judgement can be conveniently carried out to determine whether the disk slice sample is broken or not.

The invention discloses a cutting fluid precise proportioning method and system based on information feedback. The method realizes the control of the opening time of the electromagnetic valve through the detection of the liquid concentration and liquid level, and effectively realizes full-automatic without manual intervention. Precise ratio of cutting fluid. The system includes a cutting fluid tank, a waste liquid tank, a cutting raw liquid unit, a tap water unit, a solenoid valve, a concentration detector, and a liquid level detector. The top of the cutting fluid tank is respectively connected to the cutting raw fluid unit and the tap water unit through a flow valve; The inside of the cutting fluid tank is provided with a concentration detector and a liquid level detector respectively. The concentration detector is arranged at the bottom of the cutting fluid tank, and the bottom of the cutting fluid tank communicates with the waste liquid tank through a flow valve. The invention can realize a more comprehensive grasp of the real-time dynamic changes of the cutting fluid, effectively realizes the precise proportioning of the cutting fluid fully automatic without manual intervention, and improves the comprehensive utilization rate of the equipment.

The invention discloses a non-vacuum stepping pass-type rapid selenizing device which comprises a process chamber. The process chamber is divided into a loading chamber, a heating chamber, a heat insulation chamber, a cooling chamber and an unloading chamber which are sequentially arranged by latches, the heating chamber and the heat insulation chamber are provided with a heating unit, a blast unit and a gas exhaust unit, the heating unit comprises electric heating wires, an upper row of halogen lamps and a lower row of halogen lamps, the electric heating wires are evenly distributed inside the heating chamber and the heat insulation chamber, and the blast unit and the gas exhaust unit are respectively provided with a grid plate for gridding process gas. Besides, the invention further discloses a selenizing method implemented by the non-vacuum stepping pass-type rapid selenizing device. Uniformity of a gas dispersion flow field, dispersion process temperature and temperature rise are efficiently controlled, and production efficiency can be greatly improved by means of rapid selenizing on the premise of ensuring large-area selenizing uniformity.