76results about How to "Loose connection" patented technology

The invention discloses a three-dimensional printing molding preparation method for a porous ceramic for filtration. The method comprises the following steps: S1 preparing a ceramic material for printing in a three-dimensional printer; S2 printing a porous ceramic green body through the three-dimensional printer by using the prepared printing ceramic material; and S3; conducting drying, rubber discharging and sintering on the printed porous ceramic green body to obtain a porous ceramic with a specific shape structure. The three-dimensional printing molding preparation method has the beneficial effects that ceramic particles are loose in connection, the density of the ceramic green body is low, the shrinkage rate after sintering is large, and the defects such as deformation and cracking are easy to occur, and the mechanical properties of the prepared products are lower; and a generated loose porous structure has larger pore size in pores, and the pore size and porosity are difficult to control through a molding process parameter. The ceramic material for printing according to the invention fully mixes solid powder with liquid additive, the ceramic particles are connected closely and the components are uniform, and the printed ceramic green body has high precision and good mechanical performance.

The invention discloses a distributed real-time news information acquisition system, and the architecture of the system comprises a central server, a plurality of sub-acquisition nodes and a database server, wherein each sub-acquisition node is responsible for acquiring a news page, communicating with the central server through TCP/IP (transmission control protocol/Internet protocol) and transmitting the acquired news page to the central server, and the central server is used for storing all the downloaded news pages into the databse server. The system can overcome the defects of the prior art and is mainly used for performing high-efficient and stable acquisition against the characteristics of a large amount of news data, fast updating speed and high repeatability; furthermore, the cost is low, and the deployment is easy.

The invention discloses a fish scale collagen process technology that is made up from the process of twice acid process, alkali neutralized, boiling, enzymolysis, exchanging absorbing, concentrating, filtering, drying and spraying. The invention also supplies the invention to easily produce fish scale collagen produce technology. The invention has low molecular weight, stability, and low content or ash content.

Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.

The invention discloses a method for separating and culturing primary chicken hepatocytes. According to the method, EGTA (Ethylene Glycol Tetraacetic Acid) with low hepatotoxicity is added into a perfusate A to loosen the junction between hepatocytes, so that the dispersion degree of the to-be-separated hepatocytes is increased; double resistance is added into the perfusate A, a perfusate B and D-Hanks flushing fluid, so that the pollution is further prevented; and circulating perfusion digestion is adopted during digestion perfusion, so that the perfusion cost is greatly reduced. A serum-free cultural method of the chicken hepatocytes is established; compared with a traditional serum cultural method, the method disclosed by the invention has the same effect on the aspects of cell quantity, activity, function and the like, so that the problems caused by the existence of serum are solved and a foundation is laid for the substance metabolism study and biological product preparation on the basis of the chicken hepatocyte culture.

An anchor winch has a casing assembly, a motor, a capstan and a chain. The casing assembly has a casing, a guiding cover, a spring and a guiding rail. The guiding cover is mounted on the casing and selectively opens. The spring is connected to the casing and the guiding cover and makes to guiding cover to be capable of opening at any angles. The guiding rail is mounted on the casing adjacent to the guiding cover. The motor is mounted on the casing. The capstan is mounted rotatably on the casing and is driven by the motor. The chain is mounted through the casing and is wound on the capstan. The spring achieves a somewhat loose connection between the casing and the guiding cover, which provides a resilient force preventing the guiding cover from being damaged by the inadvertent impact from the moving chain.

The invention relates to a preparation method of an iron alloy, which comprises the following steps: melting one-third weight of iron, all weight of manganese, all weight of aluminum and one-half weight of chromium in a smelting furnace, heating to 1250-1350 DEG C, keeping the temperature for 0.5-1 hour, and cooling to 200-350 DEG C; sequentially adding the rest weight of chromium and all weight of molybdenum, nickel, titanium, zirconium, boron and cobalt, and heating to 1250-1350 DEG C; and adding the rest weight of iron and all weight of carbon, tellurium, silicon and cerium, keeping at the temperature of 1250-1350 DEG C for 1-2 hours, casting, annealing, and carrying out quenching and tempering treatment to obtain the wear-resistant iron alloy. The tissue crystal grain of aluminum in the alloy solution can produce overgrowth to form a similar skeleton structure with manganese and chromium, and the elements added afterwards are sent into the solution in a filling mode.

The invention relates to a changeover valve comprising a valve housing, two sealing elements, and a switching tube, wherein an axial actuating movement of the changeover shaft can be transferred at least to one of the two sealing elements in such a way that either both sealing elements bear with outer circumferential sealing surfaces on the sealing surfaces of the valve housing that surround a fluid passage and one of the sealing elements closes the adjacent circumferential front edge of the switching tube with an inner circumferential sealing surface while the other sealing element remains at a distance from the other circumferential front edge of the switching tube, serving as a fluid passage, or both inner circumferential sealing surfaces of the sealing elements bear on the adjacent circumferential front edges of the switching tube while the one sealing element uses the outer circumferential sealing surface thereof to load the adjacent mating sealing surface surrounding the fluid passage, and the other sealing element is spaced apart from the mating sealing surface assigned thereto and surrounding a fluid passage.

The invention discloses a primary rat or mouse gastric mucosal epithelial cell isolation and culture method. A perfusion method is innovatively introduced into the primary rat or mouse gastric mucosal epithelial cell isolation and culture method, and sufficient perfusion without dead corners is achieved. Prepared compound enzyme digestive juice avoids the problems of low cell viability and poor yield and is capable of digesting more evenly and thoroughly as compared with preheated digestion of traditional single collagenase. Within 12 hours of cell inoculation adherence, a cell culture medium with a pH value of 6-6.5 is adopted, cell adherence rate can be increased greatly and adherence effects are better. The primary rat or mouse gastric mucosal epithelial cell isolation and culture method has the advantages of large total cell number, high isolation degree, high living rate and low contamination probability by bacteria, fungi and other cells as well as capability of achieving subculture so as to provide a favorable cell culture scheme for related fundamental researches.

The invention provides a tobacco product and a preparation method thereof. The preparation method comprises the specific steps that industrial hemp is taken as a raw material, a solid-phase substrateused for the tobacco product is prepared by adopting a foam forming method, a coating liquid containing cannabinoid is sprayed on the solid-phase substrate, and the tobacco product is obtained. The tobacco product has the advantages that the tobacco product replaces a traditional heat-not-burn tobacco product of a cigarette, the volatilization of effective components is fully achieved, the heat-conducting property is good, the smoke amount is large, and the taste is good.

An earbud headphone set with adjustable behind-the-neck magnetic speaker wire clamps comprising an audio source electrical connector, a length of four-conductor speaker wire, a Y-junction, a first and second length of two-conductor speaker wire, a first and second adjustable magnetic speaker wire clamp, and a first and second loudspeaker. First and second adjustable magnetic speaker wire clamps are each: (i) permanently attached the substantially longer speaker wire, (ii) reversibly slideably attached and reversibly rigidly attached to the substantially longer speaker wire, or (iii) reversibly rigidly attached to the substantially longer speaker wire. Earbud headphone set with adjustable behind-the-neck magnetic speaker wire clamps may further comprise a microphone located on the length of four-conductor speaker wire, the Y-junction, or the first or second length of two-conductor speaker wire.

The invention relates to a preparation method of a wear-resistant ferroalloy. The method comprises steps as follows: in the ratio, placing 1/3 parts of iron by weight, 1 part of manganese by weight, 1 part ofaluminum by weight and 1/2 parts of chromium by weight into a smelting furnace for melting, heating the smelting furnace to the temperature of 1250-1350 DEG C for 0.5-1 h, and then cooling the smelting furnace to the temperature of 200-350 DEG C; then sequentially adding the rest chromium by weight, 1 part ofmolybdenum by weight,1 part of nickel by weight, 1 part of titanium by weight, 1 part of vanadium by weight, 1 part of boron by weight and 1 part of cobalt by weight, and heating the mixture to the temperature of 1250-1350 DEG C; then adding the rest iron by weight, 1 part of carbon by weight, 1 part of silicon by weight and 1 part of ceriumby weight at the temperature of 1250-1350 DEG C for 1-2 h, and performing casting, annealing, quenching and tempering to obtain the wear-resistant ferroalloy. Structural grains of the aluminum can grow excessively in an alloy liquid, the aluminum, the manganese and the chromium form a framework-like structure, and elements added later enter the liquid in a filling manner.

A liquid-cooled heat dissipation apparatus includes a base (10), a telesignaling linkage member (20), a sliding plate (30) and a switch module (40). The telesignaling linkage member (20) is moveably installed on the base (10). The sliding plate (30) is installed corresponding to the telesignaling linkage member (20) and generates a movement along with the telesignaling linkage member (20). The switch module (40) includes a microswitch (41) arranged corresponding to the sliding plate (30) such that the microswitch (41) is operably opened or closed based on the movement of the sliding plate (30). Accordingly, through the opening and closing of the microswitch, the telesignaling monitoring on the functional module state can be achieved.

The present invention relates to a carrier element for a pressure chamber of a friction clutch. The carrier element is provided with at least a receiving element for a sealing device and a stopping element for an operation element of a pressure chamber. The carrier element is characterized by employing an integral structure. By employing the carrier element, a plurality of elements can be replaced by the carrier element which is very light in weight and simple in structure.

An air cargo transportation method, a transport plane and an air cargo transport system. In the air cargo transportation method for the transport of various cargoes to different destinations, a transport plane is provided first that flies through at least three air regions respectively associated to a station. The transport plane does not land at one of the stations. Instead, the cargo is transported between the transport plane and one of the stations by an airworthy feeders, the cargo being transferred between the feeder and the transport plane while in the air. The transport plane and two feeders form the air cargo transport system, wherein the transport plane may comprise two interconnected feeders. With the air cargo transportation method, the utilization of the transport plane is enhanced. Further, the transport ways for individual cargo items can be shortened so that the efficiency is improved.

The invention relates to a stackable system container (3) and a corresponding transport system (2). The known system containers or transport systems have the disadvantage that a precise prior adjustment is necessary for the purpose of connecting the system containers. The aim of the invention is to configure a system container or transport system in such a way that a particularly stable and intuitive mutual fastening is made possible. The aim is achieved in that catwalks (16; 17) of the system container project in the opposite directions, and at least one upwardly protruding locking nose (20)is provided on a lid part (9).

The invention provides an electric socket and a bearing body therefor. The bearing body includes a housing for accommodating the electrically connecting terminal, having a plurality of sidewalls that are connected and a bottom; a baffled portion on one of the sidewalls; a rib provided on the sidewall and extending longitudinally from one side to the other side of the one of the sidewalls; and a plurality of conductive pins penetrating the bottom. When the electrically connecting terminal is fit into the housing, the baffled portion opposes against the fastener of the electrically connecting terminal, and the rib is located against an outer surface of the electrically connecting terminal, thereby preventing detachment of the electrically connecting terminal from the electric socket.

A filter cartridge is provided with a filter bag and an attachment unit non-destructively releasably connected to the filter bag and used for attaching the filter cartridge to a component of the device. The attachment unit has an air inlet section. The filter cartridge comprises two elastic and buckling-resistant rails which are arranged on mutually opposite sections of the filter bag and at the mutually facing sides each have a connection member extending over at least a part of the longitudinal extension of the correspond rails and non-destructively detachably connected with the connecting member of the correspond other rail; two guide devices which are arranged on one side, of the attachment unit, facing the filter bag, wherein the rails are guided into the guide devices, and the guidedevices extend on the mutually-departing sides of the rails; and at least one releasing member which is arranged between the guide devices at the guiding-in side, and is arranged relative to the guidedevices in a way that when the rails which are connected with each other through the connection members are guided into the guide devices, the releasing member reaches between the rails and pushes the rails to be separated from each other and releases the connection members which are connected with each other.