93results about How to "Guaranteed normal injection" patented technology

The invention relates to a connection device (7) suitable for connecting a wiper blade to a wiper arm, including at least one means (8) for rigid connection onto the wiper blade and a means (26) for linking to the wiper arm, said connection device (7) also including at least one duct (9) in which a washing liquid can circulate, and which extends in the longitudinal direction (OX) in which the wiper blade extends, characterised in that it includes at least one area (20) arranged along the duct (9) for distributing of a plurality of openings (21) for spraying the washing liquid. The invention can be used for motor vehicles.

The invention discloses a planetary screw mixing integral injection molding machine, which belongs to the field of high molecular material forming machines and is particularly suitable for medium and large-scale injection molding machines. The planetary screw mixing integral injection molding machine mainly comprises a nozzle, a machine barrel, a heating ring, a feed hopper, a screw head, a checkring, a main screw, a planetary screw, a front stop ring, a rear stop ring, a plunger, a thrust bearing, a bearing cover, a driving device and an injection oil cylinder, wherein a through hole is formed in the center of the main screw; the plunger is arranged in the through hole of the main screw; the planetary screw is arranged in a screw planetary segment of the main screw or a machine barrel second segment; and the planetary screw is meshed with the screw arris of the screw planetary segment and the screw arris in the machine barrel second segment. Two processes of mixing and injection molding are integrated, so the planetary screw mixing integral injection molding machine has the advantages of maintaining the original properties of materials to the greatest extent and eliminating energy consumption required in secondary heating process, along with many total meshed times of all the meshed screws, extremely high plasticizing efficiency, large production output, low specific energy consumption, high measuring accuracy, low injection resistance and compact structure of the whole machine.

The invention provides a novel sample preparation system for carbon and oxygen isotopes of carbonate and a sample preparation method thereof. The sample preparation system comprises an original sample reaction device, a finished sample extraction device and a system vacuum degree controlling device, wherein the original sample reaction device is connected with an autoinjection device. The sample preparation system employs the autoinjection device, so the automation degree of the sample preparation system is increased, and it is guaranteed that all the saturated phosphoric acid solution enters the bottom of a reaction tube and participates in a reaction; a touch button type vacuum valve is used to replace a conventional turn button type vacuum valve, so service life is prolonged, simplicity of usage of devices is improved, and operation time is shortened in preparation; and a constant temperature water-bath is added, vacuum-pumping and reaction can be completed in the devices in the same time, so a transfer step between vacuum-pumping and sample reaction is reduced. Moreover, the invention provides the sample preparation method of the novel sample preparation system. According to the invention, accuracy and the automation degree in preparation of a test sample are effectively improved, and standardized operational process is formed.