68results about How to "No risk of breakage" patented technology

The invention relates to a control valve (1) for a device for the variable setting of the control times of gas exchange valves of an internal combustion engine having a valve housing (2), which is implemented as hollow, and which has at least one inflow connection (P), at least one exhaust connection (T), and at least two working connections (A, B), and a hydraulic medium conduction insert (10), which is disposed in the valve housing (2) and implemented as hollow, having hydraulic medium conduction channels (11, 12, 13, 14), which are disposed in the wall of the hydraulic medium conduction insert (10) and communicate with the working connections (A, B), and a control piston (3), which is disposed in the hydraulic medium conduction insert (10), wherein said hydraulic medium conduction insert (10) has a guide sleeve (15), in which said control piston (3) is guided, said guide sleeve (15) has a plastic encapsulation (16), in which at least two of said hydraulic medium conduction channels (11, 12, 13, 14) are disposed, and a filter fabric (17) is provided between said plastic encapsulation (16) and said guide sleeve (15).

Disclosed is a functional laminated sheet having flexibility, high body and good die cutting workability. The functional laminated sheet comprises a laminated sheet composed of at least two plastic films bound to each other through an adhesive layer and a functional layer formed on one surface or both surfaces of at least one of the plastic films, wherein the adhesive layer has a Martens hardness of 260 N / mm2 or less. The functional layer is, for example, a layer having an electromagnetic wave shielding function, a heat ray reflection function, a gas barrier function or a planar heat generation function, and can be arranged in the inside of the laminated sheet. Alternatively, the functional layer is a layer having a light reflection function, a light permeation control function or an antifogging function, and can be arranged on the outermost surface of the laminated sheet. Also disclosed is a transparent electrically conductive laminated sheet for a touch panel, which comprises a transparent laminated sheet having a transparent plastic film bonded thereto through the adhesive layer and a transparent electrically conductive layer formed on the transparent laminated sheet.

The invention relates to a hot forging pressing process water meter copper shell and a manufacturing method thereof. The manufacturing method comprises the following steps: S1, feeding a copper bar which has the diameter Pi of 60-75 MM, and weighs 1,600-1,900 g; S2, rapidly heating the copper bar obtained in the S1 through combustion heater equipment to be 700-800 DEG C; S3, putting the copper bar obtained in the S2 in stamping equipment to be subjected to hot forging stamping forming with a special water meter copper shell mold; S4, cutting edges of the copper shell blank obtained in the S3; S5, inspecting the edge-cut copper shell obtained in the S4 to obtain the needed hot forging pressing process water meter copper shell. The quantity of waste gas generated in the hot forging pressing process water meter copper shell blank forming process is smaller than that of waste gas generated in casting process, so that the environment protection is efficiently improved; the sealing performance of the shell wall in forging pressing of the hot forging pressing process water meter copper shell blank is improved, no small air holes are formed in the shell wall, a process of secondary infiltration for controlling the small air holes is eliminated, and the scrappage caused by the small air holes is reduced.

The invention provides a flexible micro-nano electrode array implantable chip and a production method thereof. The micro / nano electrode array implantable chip sequentially comprises a base layer, an electroconductive layer and an insulating layer from bottom to top. The base layer made of a flexible material is of a T-shaped structure with a pointed front end. The electroconductive layer formed onthe base layer is used for detecting dual-mode neural signals in a plurality of nucleus regions of the brain. The electroconductive layer comprises a dual-mode detection electrode array formed at thefront end of the base layer, and the dual-mode detection electrode array is used for detecting the dual-mode neural signals in the nucleus regions of the brain. The dual-mode detection electrode array comprises a plurality of electrophysiological detection sites and a plurality of electrochemically sensitive detection sites, which are arranged along the longitudinal direction of the front end anddistributed in a plurality of to-be-detected nucleus regions. The insulating layer is made of a flexible material. The flexible micro-nano electrode array implantable chip and the production method thereof have the advantages that an effective detection measure and an effective detection tool are provided for long-term detection of the neural signals, and the chip is of great significance in terms of reduction of inflammations in the brain, detection of multiple brain regions, lesion discovery based on functional positioning by two types of the neural signals, and the like.

The invention provides a Metoprolol Tartaric Acid and Felodipine slow-release double-layer tablet and its preparation method. The slow-release double-layer tablet comprises a Metoprolol Tartaric Acid slow-release layer containing, by weight, 50 parts of Metoprolol Tartaric Acid, 100-150 parts of an ethyl cellulose powder, 24-30 parts of ethyl cellulose in the form of an ethyl cellulose aqueous suspension and 130-230 parts of hydroxypropyl methyl cellulose; and a Felodipine slow-release layer containing 5 parts of Felodipine and 60 parts of hydroxypropyl methyl cellulose. By adjusting the ingredients and their ratio in the Metoprolol Tartaric Acid slow-release layer and the Felodipine slow-release layer, the release speeds of medicament layers can cooperate with each other and the slow-release effect is more reliable, thus reaching a good curative effect; in addition, it is ensured that the medicament layers can be smoothly compacted to form a double-layer tablet, and the hidden trouble of damaged coating particles can be avoided. The preparation method provided by the invention mainly employs the double-layer tablet compacting technology with simple equipment, can save cost and is suitable for industrial production.

The invention provides a bilayer tablet containing niacin and simvastatin, and a preparation method thereof, wherein the bilayer tablet containing niacin and simvastatin comprises the following compositions in parts by weight: in niacin sustained release layer, 475-950 parts of niacin, 12-24 parts of ethyl cellulose and 100 parts of hydroxypropyl methyl cellulose; and in a simvastatin layer, 120 parts of simvastatin, and 25-50 parts of niacin. Due to addition of the niacin in the simvastatin, the constitution and elastic deformation of the two tablet layers can be closer, and the phenomena ofseparation and split can not be generated during preparation process. Through adjustment on types and dose of each composition of each layer, the releasing speed of the medicine in each layer can be matched so as to achieve better curative effect; in addition, respective preparation of the two layers can ensure the releasing effect of the niacin to be more reliable, and no hidden damage hazard ofcoating capsules does not exist. The main process step adopted by the preparation method is a double-layer table pressing process, the related equipment is simpler and the pharmacy cost can be saved.

The invention discloses a high performance micro-mixer used in an ultra-high performance liquid chromatography analyzer, and belongs to the field of high grade biochemistry analysis and fluid micro mixing in micro-complete analysis systems. The high performance micro-mixer comprises two inlet channels, a mixing chamber, twelve blocking plates which are distributed in an up-down staggered manner, and an outlet channel; the blocking plates are capable of enhancing the convection effect in solvent flowing, so that it is convenient for forming of a vortex zone; and in addition, the staggered blocking plates are capable of realizing flow of mixed solvent in the mixing chamber in a square wave patter path, and vortex is easily formed at corners, the existing of vortex is capable of breaking laminar flow state of solvent in flowing, and delaying diffusion path of mixed solvent in the mixing chamber, the mixing performance of the high performance micro-mixer is improved obviously, and the precision of the ultra-high performance liquid chromatography analyzer is increased further.

The invention provides a robot grasping system. Four worm wheels are driven by a worm, the worm wheels are connected with grippers, the four worm wheels are driven to rotate together in the same direction when the worm rotates, the grippers fixed to the worm wheels are driven by the worm wheels to be opened and closed, and then the article grasping purpose is achieved. Meanwhile, by means of the self-locking function of the worm wheels and the worm, the article grasping stability of the grippers can be improved.

The invention relates to the technical field of resistor manufacturing, and particularly relates to a complete transposition multi-strand circular stranded wire. The complete transposition multi-strand circular stranded wire comprises an encapsulating insulating layer, a forward stranding wire, a backward stranding wire, a single-strand stranded wire insulating layer and a forward and backward stranding wire insulating layer, wherein the encapsulating insulating layer wraps outside the forward stranding wire and the backward stranding wire; the forward stranding wire and the backward strandingwire are respectively composed of a six-strand stranded wire; each strand is stranded by no less than three single circular wires; the single-strand stranded wire insulating layer adopts two polyester films with a thickness of 25[mu]m, and the two polyester films are respectively wound on the forward stranding wire and the backward stranding wire in a forward-backward crosswise manner; the forward and backward stranded wire insulating layer separates the forward stranding wire and the backward stranding wire and is formed by winding a layer of DMD with a thickness of 0.4mm in an accompanyingmanner. Aluminum wires / copper wires are adopted to replace nickel-chromium, the temperature rise under the continuous current is not less than 20K, the temperature control is not more than 60 DEG C, and the short-term temperature is not higher than 180 DEG C under impact short-circuit current, thereby not causing secondary failure, and being safe and reliable.

The invention discloses a preparation method of a zirconia all-ceramic tooth. The preparation method is characterized by comprising the following steps: acquiring patient data, establishing a digital model, determining the form of a dental crown prosthesis, typesetting, exporting STL format data, completing typesetting and customizing a support retainer through a 3D printer, carrying out spray forming on a zirconia dental crown, carrying out post-treatment, pre-dyeing, drying sintering, polishing, adjusting and glazing. The dental crown which is directly used for repairing the human body can be directly produced; a 3D printing spraying technology is adopted, and the material utilization rate is increased; the dental crown is small in thickness, high in strength and suitable for adults; due to the design of the soluble support material, the soluble support material can be quickly dissolved, is easy to remove and free of residues, can break through the limitation of post-treatment support removal, and realizes the design of any shape; and cutting and polishing are not needed, and the labor cost and the breaking risk in the machining process are reduced.

A retardant plastic insulating conduction band used in outdoor lead-in wire of electric control cabins and transformers includes ribbon copper with at least two closely stacked sheet coppers 0.5-1.0 mm thick and 6mm-50mm wide. The said ribbon copper is coated with retardant plastic insulation layer. Advantages: soft bended and easy coated which does not crack the insulation protection medium wrapping conductors and reducer flame tempeture, steps heat and oxidation transfer channel once bumps into fire, the length of it can be processed freely, copper sheets are bound tightly without slot.

The invention discloses a combined stator with an insulating skeleton. The combined stator comprises an expansion sleeve, an iron core unit, the insulating skeleton, a coil wound on the insulating skeleton, and an iron core connecting part which is connected with the iron core unit. The combined stator is characterized in that the iron core unit is shaped like T, and two sides of the T-shaped ironcore unit are provided with mortise grooves; both sides of the iron core connecting part are bulged to be provided with tenons; the exterior of the insulating skeleton is provided with an annular groove; the coil is wound in the annular groove of the insulating skeleton, and the mortise grooves below the T-shaped iron core unit and the tenons of the iron core connecting part are connected; a plurality of T-shaped iron core units and the iron core connecting part form an annular stator through the cooperation of the mortise grooves and the tenons; the inner hole of the annular stator is in interference connection with the expansion sleeve. Compared to the prior art, the stator has an integral insulating skeleton, adapts to standard winding machine operation, is suitable for mass production, and has a good insulating effect. There is no risk that an enameled wire will cause a damage during winding.

A retardant plastic insulating conduction band used in outdoor lead-in wire of electric control cabins and transformers includes ribbon copper with at least two closely stacked sheet coppers 0.5-1.0 mm thick and 6mm-50mm wide. The said ribbon copper is coated with retardant plastic insulation layer. Advantages: soft bended and easy coated which does not crack the insulation protection medium wrapping conductors and reducer flame tempeture, steps heat and oxidation transfer channel once bumps into fire, the length of it can be processed freely, copper sheets are bound tightly without slot.

The invention discloses an electric clothes airing machine with a folding mechanism and a drying module. The electric clothes airing machine is used for a clothes airing machine and comprises a main machine, two telescopic mechanisms, a clothes airing rod, the drying module, the folding mechanism and an electric wire, wherein the two telescopic mechanisms are installed below the main machine; eachtelescopic mechanism is provided with a folding rod and a cross beam connected with one end of the folding rod; the other ends of the two folding rods are connected with the main machine; the clothesairing rod is connected with the two ends of the cross beam and is used for hanging clothes; the drying module is located below the main machine; one end of the folding mechanism is hinged to the drying module, and the other end of the folding mechanism is hinged to the main machine, so that the drying module ascends and descends in the vertical direction; and the electric wire is contained in the folding mechanism and used for electrically connecting the drying module to the main machine.

At least one section of the screw (11) has a wear-protection layer (13) and at least one other section of the screw preferably has an anti-friction layer (18). In a solid rod (11'), a bed (12) for the wear-protection layer (13) is first formed, and in this the wear-protection layer (13) is then applied, and finally the interstices (14) between the screw flights (15) are formed. According to the invention, the wear-protection layer (13), for example composed of tungsten carbide, is applied by build-up welding, and the interstices (14) are formed with lateral separation (16, 16') with respect to the wear-protection layer (13). For production of the anti-friction layer, the dimension of that / those section(s) of the screw (11) where the anti-friction layer, e.g. composed of molybdenum, is to be applied is reduced below specification, while providing lateral separation (19) with respect to the wear-protection layer. The anti-friction layer is then applied in the under-dimensioned region (17). Finally, the screw (11) is brought to the specified dimension.

The invention discloses a microneedle capable of extracting skin tissue fluid and a preparation method thereof. The microneedle comprises a porous network framework interpenetrated and a hydrophilic polymer layer modified on the inner and outer surfaces of the framework. The preparation method is specifically to prepare a mixed solution of polymer and porogen first, then fill them into the microneedle mold, and then remove the porogen therein to obtain a porous network skeleton with interpenetration, and finally in the porous network skeleton The inner and outer surfaces are modified with a hydrophilic polymer layer. The present invention obtains the microneedle capable of extracting skin tissue fluid by improving the thickness of the hydrophilic polymer layer used in the microneedle, the porosity and aperture of the microneedle, and the overall process design of the corresponding preparation method. The microneedles provided by the invention have good biocompatibility, fast extraction of skin tissue fluid, no external negative pressure device, no obvious pain and skin infection, and no need for professional operation.

A device for holding freight is composed of two containers, which are connected to each other by at least two connecting elements. The area where the containers are connected to each other is sealed off from the environment by at least one sealing element. Each container has a closable access opening at the end which faces the other container. The sealing element extends around the area of the outside edges of the two facing ends of the containers. The connecting element is installed on the containers in such a way that, when the containers are not connected to each other, an external contour of the connecting element is essentially in an interior position with respect to the external contour of the container.