72results about How to "Break will not" patented technology

The present invention discloses one kind of nanometer antiweathering and waterproof ceramic paint with high mechanical strength and its preparation process and application. The paint consists of filming material, stuffing, assistant and modifying nanometer powder preferably in the weight ratio of 20-60 to 30-65 to 1-5 to 1-10. The paint of the present invention has excellent waterproof performance, high weather resistance, high mechanical strength and easy use, and may be used as the protecting layer of high temperature pipeline.

The invention provides a method for reinforcing the strength of a sand core used for a car hot stamping mould and obtained by 3D (three-dimensional) printing. A coated sand mould and the sand core required for casting the stamping mould are printed by utilizing 3D printing equipment, and a high-precision casting blank of the hot stamping mould provided with a conformal cooling water channel can be obtained after pouring. But a printing material is coated sand, resin in the coated sand loses efficacy at about 600 DEG C, and the strength of the sand core obtained by 3D printing is reduced at a high temperature, so that the sand core needs to be subjected to strength reinforcement treatment. The invention provides a method for penetrating the sand core by a molybdenum wire or burying the molybdenum wire in the sand core and enabling the molybdenum wire to serve as a core bar, so that the heat resistance time of the sand core at the high temperature can be prolonged and the hot stamping mould in which the cooling water channel is completely unblocked can be obtained.

The invention discloses an organic composition added to early and later stages in preparation of tape-casting slurry. The organic composition added at the early stage comprises a solvent and a dispersing agent, wherein the solvent is at least one of reagents such as ethanol; the dispersing agent is at least one of the reagents such as tributyl phosphate; the organic composition added at the later stage comprises a solvent, an organic binder and a plasticizer, wherein the solvent is at least one of the reagents such as the ethanol, the plasticizer is at least one of the reagents such as polyethylene glycol, and the organic binder mainly is polyvinyl butyral. An application of the organic composition in a tape-casting process concretely comprises the following steps: firstly, mixing and ball-milling ceramic powder, an inorganic bonding phase, and the organic composition added at the early stage, and then adding the organic composition added at the later stage to carry out secondary ball-milling; stirring and defoaming to obtain the tape-casting slurry; adjusting a blade gap and the tape-casting speed of a tape-casting machine; preparing into a wet biscuit; and stripping from a carrier band after drying, so as to prepare a green tape. The organic composition is simple in preparation process, and short in preparation period; the prepared biscuit film is stable in quality, and does not easily crack.

The invention discloses a preparation method of Nb3Sn superconducting magnet with increased fracture resistance performance. The method comprises the following steps: firstly fully soaking Nb3Sn superconducting coil in epoxy resin under vacuum atmosphere, then using nitrogen for pressurization to ensure that epoxy resin is fully soaked in the Nb3Sn superconducting coil and finally solidifying to obtain Nb3Sn superconducting coil. When using the Nb3Sn superconducting coils prepared by the method of the invention for excitation, as the Nb3Sn superconducting coils are completely insulated, the Nb3Sn superconducting coils can not fracture.

The embodiment of the invention provides a planet wheel and a processing technique thereof. The processing technique comprises the following steps of: (A) carrying out intermediate-frequency heating, 100T punch blanking and 400T press moulding extrusion on 20CrMnTi material in sequence to obtain a tooth-shaped product, then carrying out hyperthermia treatment after 80T punch side shearing, and then forging the tooth-shaped product; (B) hobbing the product obtained in the step (A) by using a hobbing machine; (C) shaving the product obtained in the step (B) by using a shaving machine; (D) carrying out heat treatment on the product obtained in the step (C) by using a continuous carburizing furnace; (E) grinding the product obtained in the step (D) by using an inner bore grinder and a plane grinder; and (F) cleaning the product obtained in the step (E) and coating antirust oil and packaging to obtain a finished-product planet wheel. The planet wheel obtained by the processing technique has the advantages of material saving, can be processed in a short time and has solid and durable teeth.

The invention provides a substrate and a preparation method thereof. The substrate comprises a flexible substrate, a graphene layer (1), an insulating layer (2) and a gate electrode (3), wherein the graphene layer (1) is separated from the gate electrode (3) by the insulating layer (2); the gate electrode (3) is arranged on the flexible substrate; and the graphene layer (1) comprises a source electrode and a drain electrode of a intrinsic (11) material and a semiconductor layer which is positioned between the source electrode and the drain electrode and is made of a graphene hydroxide (12) material. The flexible display substrate is formed on a metal thin film and then adhered to the flexible substrate, so that the formed flexible display substrate has higher flatness and mass, the performance and the yield of the device can be improved excellently, and occurrence of poor pixel is not easily caused after multiple bending.

The invention discloses a cell of a lithium ion battery, which comprises a negative pole piece and a positive pole piece which are mutually overlaid and wound into a cylinder shape, and an isolation membrane between the negative pole piece and the positive pole piece, wherein the negative pole piece comprises a copper foil serving as a negative pole collector, and negative pole membranes coated on two surfaces of the copper foil; and the negative pole piece is also provided with a negative pole lead-out end which is fixed on the copper foil at the tail ends of the negative pole membranes and is pasted with a tape. By changing the position of the negative pole lead-out end to reduce the strain of an easily broken part of the copper foil, the grain boundary of the copper foil cannot be damaged in the charging process, lithium cannot insert into the grain boundary of the copper foil, and the copper foil cannot be broken neither; therefore, the internal resistance of the battery is greatly reduced when the battery is discharged, and the output of the voltage and current is ensured. The invention also discloses a lithium ion battery, which comprises the cell of the lithium ion battery, a steel shell covering the cell and electrolyte rushing into the steel shell.

The invention discloses a brazing type diamond pen trimming pen and a processing method thereof, which belong to the technical field of machinery, grinding and polishing. There are grooves on the surface of the metal substrate, the solder wraps the diamond pen, and the pen is placed in the groove. The grooves are arranged side by side on the surface of the metal substrate with intervals between the grooves. The invention has the advantage that it can solve the problems of irregular arrangement and broken pen strips during the production process of the trimming pens, and at the same time solve the problems of pen strips falling off during use and short service life. The method of the invention is simple, requires low technical level of workers, high production efficiency, simple processing and low cost, and the diamond pen strips are neatly arranged without breaking; one side of the diamond strips is exposed on the surface of the metal substrate, which greatly reduces the metal powder in the trimming process pollution and adverse effects.

The present disclosure relates to cementitious articles that are reinforced with a fabric made at least partially of high modulus polyolefin monofilament fibers. Preferably, the polypropylene monofilament yarns have a 3% secant modulus of elasticity of at least 100g / denier. The high modulus polypropylene fabric has an intrinsic resistance to the alkaline conditions present in a cementitious composite, as well as a low elongation at break. The high modulus polypropylene may contain a nucleating agent to facilitate the process of obtaining desired draw ratio.

The invention provides a pH (potential of hydrogen) responsive magnetic meso-porous silicon nano-particle drug controlled release system and a preparation method thereof. A structure of the drug controlled release system includes that the system is of a double-layer structure, the inner layer of the system is provided with a drug-loading magnetic meso-porous silicon nano-particle, the outer layerof the system is provided with a branched polyethyleneimine, the branched polyethyleneimine of the outer layer is treated by methylmaleic anhydride, the magnetic meso-porous silicon nano-particle is of a core-shell structure, a core is provided with a ferroferric oxide nano-particle, and a loaded drug is doxorubicin hydrochloride. The system has magnetic responsiveness, cell tracing is achieved, disease conditions are accurately diagnosed in real time, targeted delivery and controlled release of the drug is synchronously achieved, amidated PEI wraps surface of MMSN through GSH (glutathione) sensitive disulfide bonds, so that 'passive targeting' enrichment of acid response of a tumor microenvironment is achieved, step-by-step response is achieved by the aid of a mechanism of pH sensitivityand GSH sensitivity, high-accuracy targeted therapy of a cancer is achieved, and the cancer is effectively and integrally diagnosed and treated.

The invention relates to a method for preparing DMF (2,5-dimethylfuran) from HMF (5-hydroxymethylfurfural) by catalytic hydrogenation. According to the method, a Co / rGO (cobalt and reduced graphene oxide) composite is used as a catalyst, the Co / rGO catalyst does not need reduction pretreatment, the conversion rate of HMF can reach 100% at 140-200 DEG C and under 1-2 MPa hydrogen pressure, and theyield of DMF exceeds 90%. The Co / rGO catalyst is cheaper than noble metal catalysts such as Pt and Pd, only C=O / C-O bond is dissociated, and the furan ring and C-C bond are not damaged, so that the catalyst has high selectivity to DMF, does not need pre-reduction treatment and has industrial application value.

A flexible display device includes a flexible substrate, an inorganic barrier layer, a metal layer, an organic buffer layer, and an insulating layer. The inorganic barrier layer is located on the flexible substrate. The metal layer is located on the inorganic barrier layer and in contact with the inorganic barrier layer. The organic buffer layer covers the inorganic barrier layer and the metal layer, and has at least one conductive via connected to the metal layer. The insulating layer is located on the organic buffer layer. Since the metal layer is non-organic material, it allows excellent adhesion between the metal layer and the inorganic barrier layer. When the flexible display device is bent due to the force, the metal layer is less likely to be broken by bending.

The invention discloses a stamping module and a working method thereof. The stamping module comprises a stamping barrel connected to a drive mechanism, wherein a mould cavity of a mould is arranged below the stamping barrel; the mould cavity is used for stamping and manufacturing a housing; a board is arranged on the surface of the mould cavity; an upper pressure plate and a lower pressure plate,which are connected through a rope, are arranged in the inner cavity of the stamping barrel; the upper pressure plate and the lower pressure plate can slip back and forth in the stamping barrel; an accommodating tank is arranged on the upper surface of the lower pressure plate; non-Newtonian fluid is filled in the accommodating tank; the lower surface of the lower pressure plate is connected to astamping head; at least two groups of pump machines are arranged on the lower surface of the lower pressure plate; while the stamping head is in contact with the board, materials can be pumped into the accommodating tank or out of the accommodating tank to change a component proportion of the non-Newtonian fluid, so that force of the stamping head is regulated, and the board can be quickly formedin a case of not breaking. According to the stamping module disclosed by the invention, the non-Newtonian fluid is arranged in the part of the stamping equipment for effectively buffering, so that a bristle board and equipment are protected, and therefore, regulating precision of a punch is improved.

The invention discloses a reel-to-reel graphene preparation apparatus which comprises a closed vacuum chamber, wherein a roll system for driving a graphene growing foil belt to move is arranged in the vacuum chamber; the roll system comprises a driving roll for guiding the graphene growing foil belt, a growing roll for growing graphene on the graphene growing foil belt and a winding roll for winding the graphene growing foil belt after the graphene preparation is finished; a heating device for heating the graphene growing foil belt, corresponding to the growing roll, is arranged in the vacuum chamber; a quick cooling device for cooling the graphene growing foil belt on which the graphene is grown is arranged behind the growing roll along the moving direction of the graphene growing foil belt; a gas path system for introducing gas required for graphene preparation is arranged in the vacuum chamber; and a vacuum pump set for vacuumizing the vacuum chamber is arranged outside the vacuum chamber. The reel-to-reel graphene preparation apparatus disclosed by the invention can realize the quick, continuous and large-scale industrial production of graphene.

The invention discloses a method for producing dyed hollow filaments by recycled polyester in the field of polyester fiber production methods. The method includes: preparing a recycled material, and making the recycled material into recycled masterbatch; subjecting the recycled masterbatch to solid-phase tackifying under a vacuum state; mixing the tackified material and masterbatch, sending into a screw extruder to realize mixing and extruding, and spinning through a hollow spinneret plate to obtain hollow filaments; cooling and blowing the filaments under the protection of nitrogen; oiling, and subjecting multiple strands of filaments to interlacing treatment through an interlacing jet; winding and storing. The method can be used for recycling of various waste beverage bottles and textile offcut materials, and environmental friendliness and low energy consumption are realized.

A fiber cutting method comprising the steps of: A, stripping the outer structure of the fiber (3), and leaving only the coating layer (2) outside the segment where the fiber is to be cut; B, clampingat least one end of the fiber (3), stripping the coating layer (2) around the fiber to be cut; and C, clamping through both ends of the segment and applying tension to the fiber (3) by a clamping member (1), and cutting the fiber (3) to be cut from which the coating layer (2) has been stripped. For the fiber cutting method, the clamping surface precision requirement for the clamping member (1) isreduced to reduce the cost and reduce the requirement for the operating environment during the cutting process, thus increasing the success rate of the fiber (3) cutting and increasing the efficiency.

The invention discloses automobile safety air bag hinge net cloth of a warp knitting structure. The automobile safety air bag hinge net cloth consists of two net cloth regions and one fiber storage region connected with the two net cloth regions, wherein the fiber storage region is used as a hinging part. The automobile safety air bag hinge net cloth is characterized in that each of the two net cloth regions and the fiber storage region is completed by at least three groups of yarns by using a warp knitting process; the intensity of the first group of yarns is greater than the pulling force when an automobile air bag is opened through blasting; the intensity of the second group of yarns and the third group of yarns is smaller than the pulling force when the automobile safety air bag is opened through blasting; in the two net cloth regions, the second group of yarns, the third group of yarns and the first group of yarns are connected in a winding or hooking winding way at the connectorposition so as to form the required lattice region; in the fiber storage region, the first group of yarns form the storage of the first group of yarns through the continuous transverse movement. The automobile safety air bag hinge net cloth of the warp knitting structure changes the conditions that at the single fiber looped storage region form in the existing hinge net cloth, the fiber material is not limited, and the net cloth structures in other forms are instable.

The invention provides a double power supply switching mechanism and an automatic change-over switch. The double power supply switching mechanism includes a rotating disc and pushing pendulums symmetrically arranged at two sides of the rotating disc, the rotating disc drives the push pendulums to swing, and the double power supply switching mechanism also includes an adjusting pendulum rotatably fixed on one side of the rotating disc away from the pushing pendulums, and elastic pieces connected and arranged between one ends of the adjusting pendulums close to the rotating disc and the pushing pendulums. The abovementioned double power supply switching mechanism can utilize the elastic pieces to automatically adjust the adjusting pendulums according to the actual stroke of a breaker handle in a load buckling process, so that the breaker handle can be reset through load buckling, and does not break due to a too large load, and compared with using screws to adjust stroke allowances of pushing pendulums in the prior art, time is saved.

The invention discloses a high-energy density polymer lithium ion power battery negative electrode tab. The high-energy density polymer lithium ion power battery negative electrode tab sequentially comprises a copper-plated nickel metal sheet tab, a welding overlap joint region and an aluminum metal sheet for connection, wherein PP polypropylene modified region is fixedly arranged on the copper-plated nickel metal sheet tab. During fabrication, an aluminum material is cut to required length according to demand, the copper-plated nickel tab is positioned on a die, so that the aluminum metal sheet is positioned onto copper-plated nickel, and aluminum metal sheet and the copper-plated nickel are overlapped to form the welding overlap joint region; and two types of metal are rapidly molten bylaser welding equipment so that the two types of metal are pasted. By the negative electrode tab, the integral energy density index of a battery pack is improved, the material density is 2.7g / cm<3>, and the whole weight of the power battery is reduced by 6kg or above; the problem of series and parallel welding of the power battery in subsequent assembly is solved; and after the aluminum sheet is connected with the copper-plated nickel, subsequent welding with an aluminum pole post becomes easier and reliable, the metal constituents are consistent, a welding point after welding is firm to forma whole, and a key effect on prolonging the service lifetime of the battery is achieved.

The invention relates to the field of steel wire ropes, in particular to a high-tenacity optical fiber steel wire rope. The high-tenacity optical fiber steel wire rope comprises an outer-layer strand, an inner-layer strand, a central strand and an optical fiber strand, wherein the outer-layer strand and the inner-layer strand are respectively formed by weaving and twisting a plurality of strand ropes, each strand rope is formed by weaving and twisting a strand core and a strand surface, and the optical fiber strand is arranged at any strand rope of the outer-layer strand. The central strand comprises a hollow steel wire body, and the hollow inside of the hollow steel wire body is filled with an adhesive part. The optical fiber strand comprises an outer shell and an optical fiber bundle, and the space between the outer shell and the optical fiber bundle is filled with an adhesive part. The inside of the optical fiber steel wire rope is filled with the adhesive parts, the tenacity of the optical fiber steel wire rope is improved, the high-tenacity optical fiber steel wire rope is not broken immediately when a steel wire rope is broken, and a good buffering function is achieved.

The invention relates to the field of medical instruments, in particular to a tissue defect closing instrument. The closing instrument comprises a closing unit and a releasing unit, wherein the closing unit comprises a connecting unit and a locking unit connected with the connecting unit, the locking unit is located in the near-end area of the connecting unit, and the releasing unit is located in the near-end area of the locking unit; the connecting unit at least comprises one or more connecting pieces; the locking unit at least comprises one or more locking pieces; and the releasing unit is operated to drive the locking pieces to rotate, the connecting unit is tensioned, the locking pieces get close to each other and achieve self-locking, and then tissue defect closing is achieved. The locking unit and the releasing unit are of an integrated structure, and when the locking pieces achieve self-locking, the releasing unit is further operated, so that the releasing unit and the locking unit are broken and separated.

The invention discloses a traction device and an automobile. The traction device comprises a towing hook and a protective tube, wherein the protective tube is provided with a connecting section and aninserting section; the connecting section is connected to the towing hook, and the inserting section is in inserting fitting with an anti-collision beam; a first weakening part is formed in the inserting section; a second weakening part is formed between the first weakening part and the connecting section; the tensile strength of the first weakening part is less than that of the second weakeningpart; and the bending strength of the second weakening part is less than that generated through the first weakening part and the anti-collision beam by inserting fitting. According to the traction device, the towing hook is connected to the anti-collision beam through the protective tube; the protective tube is provided with the first weakening part and the second weakening part; when the tractionforce applied to the protective tube meets that the tension force applied to the first weakening part is beyond the maximum borne tensile strength, the first weakening part is broken; when the traction force applied to the protective tube meets that the bending torque applied to the second weakening part is beyond the maximum borne bending strength, the second weakening part is broken, and weld joints in an automobile body cannot be broken.

The present invention discloses a flat combination drag chain cable and a preparation method thereof. The flat combination drag chain cable comprises a plurality of wire cores, and at least one steel wire embedded among a plurality of the wire cores; protective layers coat the wire cores and the steel wire; the wire cores are formed by twisting a plurality of insulation core wires and at least one adhesive tape; the insulation core wires include a group of conductors, formed by kinking a plurality of conductors, and an insulation layer coating outside the group of conductors; the conductors are formed by bunch stranding of a plurality of copper wires, the diameter of each wire of the copper wires is less than 0.2mm, and the twisting direction of the bunch stranding of a plurality of copper wires is the left direction. The flat combination drag chain cable provided by the invention has high anti-bending capability and is not able to break after more than million of times of back-and-forth bending motions, so that the physical property and the electrical property of the cable are not influenced.

The invention relates to the field of paper containers, in particular to a powerful shaping process for a disposable paper container. The powerful shaping process comprises the following steps of (1) cutting a paperboard and pressing an indentation line so as to form the bottom, the slope surface and the wheel gallery of the end edge of the paper container; ((2) pre-forming the product manufactured in the step (1) to a required height, so that forming the bottom and the slope surface of the paper container; and (3) pressing strong indentation lines and / or elegant curves on the bottom and / or the slope surface and / or the end edge of the product manufactured in the step (2), and performing horizontal shaping, so that shaping the end edge of the paper container, and the problem of fiber recovering after paperboard forming is solved.

The invention discloses a method for producing brass wires for videos. The specific production method includes the steps that firstly, raw materials are selected, and specifically, pure copper and zinc are used as the raw materials for production; the raw materials of the brass wires are improved; red copper and brass scrap are previously used for production; pure red copper and zinc are currentlyused; the purity is high; the impurity content is low; and when the wire drawing control is very fine, the stress is applied, copper wires are not easy to break, and the requirements of customers canbe met; secondly, at the time of take-up, workers take up rolls and make the rolls durable in the past; the take-up is changed naturally now; and the gaps between the wires are large, so that when annealing, the temperature goes in and the annealing effect is good; and thirdly, in the annealing process, wire diameters are directly pulled from 8.0 millimeters to 3.0 millimeters; a large processingrate is continuously pulled and backed; the annealing is reduced once than before; the improved processing rate is 85%; in the process of 8.0-3.0 millimeters, it is seen whether the wires are brokenor not; and if the wires are not broken at such a large processing rate, in the subsequent processing, the wires cannot be broken.

The application discloses an anesthesia catheter, which includes a catheter body. The catheter body has a tube wall that encloses a drug channel. The anesthesia catheter also includes a metal wire that is fixedly connected in the tube wall. The metal wire is linear and runs along the catheter wall. The length of the body extends; the tensile strength of the metal wire is less than that of the catheter body. The metal wire is linear, and the tensile strength of the metal wire is less than that of the catheter body, so that during the process of pulling out the catheter, if the anesthesia catheter is stuck by human bones or knotted in the body, resulting in greater resistance , if still using a larger force to pull the anesthesia catheter, the metal wire will break first than the catheter body. At this time, the medical staff can get a greater force feedback, that is, feel the feeling of the wire breaking, and the medical staff can Stop the pull-out action, adjust the patient's position in time to remove the anesthesia catheter, or temporarily suspend the removal process, and wait for a better opportunity to avoid catheter breakage.

The invention relates to a method for preparing DMF (2,5-dimethylfuran) from HMF (5-hydroxymethylfurfural) by catalytic hydrogenation. According to the method, a Co / rGO (cobalt and reduced graphene oxide) composite is used as a catalyst, the Co / rGO catalyst does not need reduction pretreatment, the conversion rate of HMF can reach 100% at 140-200 DEG C and under 1-2 MPa hydrogen pressure, and theyield of DMF exceeds 90%. The Co / rGO catalyst is cheaper than noble metal catalysts such as Pt and Pd, only C=O / C-O bond is dissociated, and the furan ring and C-C bond are not damaged, so that the catalyst has high selectivity to DMF, does not need pre-reduction treatment and has industrial application value.

An anti-fracture structure of a folding plastic box folding line, the structure includes a plurality of plastic box sheets formed by folding on each side of the box body and the folding lines between each box sheet, it is characterized in that the folding line is made of alternating convex and concave along a straight line An intermittent indentation line formed by a plurality of convex portions and a plurality of concave portions arranged in a row. The recess is a groove lower than the surface of the cassette, the cross-sectional shape of the groove is arc, rectangle, taper or polygon, the groove is arranged along the folding direction of the cassette, and the length of the groove is equal to the width of the fold line. The folding line of the present invention is soft and full of toughness, is easy to fold, and will not be broken or broken due to repeated folding and bending, and the folding line presents a lace shape.