166 results about "Titanium plate" patented technology

This invention provides an automatic rolling method for titanium plates suitable for hot rolling mills, comprising: S1, starting the system; S2, zeroing the mill; S3, setting rolling parameters according to the incoming plate material; S4, performing reversible rolling; S5, automatically detecting the thickness of the rolled plate to obtain the actual plate thickness A; S6, rolling the plate with a small reduction amount according to the actual plate thickness A and the target plate thickness B until the rolling target requirement is met; S7, slitting and blanking. This invention, on the one hand, enables more precise correction and adjustment of plate thickness, improving the accuracy of titanium plate thickness control, and also helps to improve the plate thickness correction efficiency and plate production efficiency. On the other hand, it enables automatic and accurate adjustment of the reduction amount according to the actual plate thickness, which helps to improve the automation level of the hot rolling mill, making the quality of the finished plate more stable and helping to maintain the consistency and continuity of good product quality.

The present application belongs to the technical field of rare metal material modification, and particularly relates to a production method for refining coarse grains of a titanium material welding seam, selects TA1 titanium plate as a research object, processes an X-shaped groove on the titanium plate, adopts manual tungsten argon arc welding to perform multi-pass welding on the TA1 titanium plate, adopts multi-pass cold pressing to perform deformation treatment on the titanium plate after butt welding, and finally performs annealing heat treatment, so as to obtain a welding seam structure similar to a base material structure. The method is beneficial to refining grains in a welding seam area and a heat affected zone, and reducing differences between grains in each area of the welding seam and base material grains.

The utility model relates to the technical field of aluminum foil formation processing, and discloses a middle and high voltage resistant feed titanium plate for aluminum foil formation, which comprises an upper feed titanium plate and a lower feed titanium plate, the upper feed titanium plate and the lower feed titanium plate form a feed titanium plate body, an interlayer is arranged between the upper feed titanium plate and the lower feed titanium plate, and the middle and high voltage resistant feed titanium plate is arranged between the upper feed titanium plate and the lower feed titanium plate. A shielding layer is arranged on the feed titanium plate body, warps and wefts are arranged on the feed titanium plate body, the warps and the wefts form a titanium mesh, a long-edge clamping groove is formed in the side face of the long edge of the feed titanium plate body, a short-edge clamping groove is formed in the side face of the short edge of the feed titanium plate body, a long-edge clamping block is arranged in the long-edge clamping groove, and a short-edge clamping block is arranged in the short-edge clamping groove. A short side frame is fixed between the long side clamping blocks, a long side frame is fixed between the short side clamping blocks, and the long side frame and the short side frame form a retainer. According to the middle and high voltage resistant feed titanium plate for aluminum foil formation, the service life of the feed titanium plate can be prolonged through the titanium mesh, the capacity can be uniformly distributed through the shielding layer, and the use performance of the feed titanium plate is improved.

The invention discloses a 3D printing method for an osteogenesis technology and a personalized box-type titanium plate, and relates to the field of manufacturing of medical instruments, and the 3D printing method specifically comprises the following steps: S1, obtaining and preprocessing three-dimensional data of a jaw bone of a patient; s2, three-dimensional reconstruction and virtual repair of an ideal contour before bone defect; s3, digitally designing the personalized box type titanium plate; s4, the personalized box type titanium plate is manufactured through 3D printing; and S5, clinical application in an operation. According to the 3D printing method for the osteogenesis technology and the personalized box-type titanium plate, the personalized box-type titanium plate can be passively placed in place in an operation, that is, the shape of the personalized box-type titanium plate is naturally matched with a bone defect area, and an ideal bone arch outline can be perfectly recovered after the personalized box-type titanium plate is placed. The dependence on the personal skill of doctors is reduced, the operation result has predictability and repeatability, and the fixing stability of the box-type titanium plate is far better than that of a bone block because the box-type titanium plate is directly fixed on the residual healthy basal bone through the screws.

This invention provides a collaborative optimization method for titanium plate annealing process parameters using multi-agent reinforcement learning, belonging to the field of reinforcement learning technology. The method includes collecting and standardizing annealing process data, encoding process parameters through a multi-layer feature extraction network, and constructing a parameter coupling perception matrix to quantify the collaborative strength. A dual-branch encoding structure is used to extract single-parameter features and interaction features, and the fusion weights are dynamically adjusted based on the coupling perception matrix to complete the state collaborative representation. The collaborative representation is input into a constraint-aware policy network to generate adjustment decisions, which are then executed in a real-world scenario and feedback is collected. Based on the feedback, a reward value is calculated, and training samples are sampled with priority to construct a composite loss function. A gradient projection method is used to update the policy network parameters to within the process feasible region, achieving continuous optimization of the policy network.

This invention relates to the field of electrochemical polishing of cobalt-based alloys, specifically to an environmentally friendly electrochemical polishing solution and polishing method for a cobalt-chromium-tungsten-nickel alloy. The cobalt-based alloy has the following chemical element mass percentages: Cr: 15.0%–25.0%; W: 10.0%–20.0%; Ni: 0.0%–15.0%; the balance being Co and unavoidable impurities such as O, N, and H. The environmentally friendly polishing solution has the following chemical composition and molar percentages: ChCl: 0.5–2 mol / L; ethylene glycol: 0.7–1.0 L; ethanol: 0–0.3 L; glacial acetic acid: 0.1–0.3 L; and a small amount of citric acid as an additive. The electrochemical polishing uses the alloy as the anode and a U-shaped titanium plate as the cathode, with a voltage of 40–60 V and a current density of 0.5–2 A / cm². 2 The polishing temperature is room temperature. The advantage of this invention is that it uses an environmentally friendly electrolyte, which can polish the surface of cobalt-chromium-tungsten-nickel alloy, avoiding the pollution of traditional chromium oxide system and acidic electrolyte system, reducing the need for repeated cleaning processes, and improving the precision control of materials.

The utility model relates to the technical field of medical instruments, in particular to a positioning device for assisting reduction and fixing acromioclavicular dislocation, which comprises a base plate, an acromion end positioning plate is arranged at one end of the base plate, and a clavicle end positioning block is arranged at the other end of the base plate. Holes are formed in the acromion end positioning plate, acromion end fixing guide needle sleeves are fixedly connected to the positions corresponding to the holes, a plurality of holes are formed in the base plate, and a first coracoshoulder ligament fixing guide needle sleeve, a second coracoshoulder ligament fixing guide needle sleeve and a clavicle end guide needle fixing sleeve are fixedly connected to the positions corresponding to the holes respectively. The positioning device can achieve accurate positioning, damage to blood vessels, nerve tracts and surrounding tissues below the coracoid process is avoided, and operation bleeding is reduced. Due to the fact that the individualized bone tunnel is established, the position where the belt carrier titanium plate is placed is appropriate, the osteolysis phenomenon is reduced, and meanwhile the risk of coracoid fracture is reduced. According to the operation method adopting the positioning device, the operation difficulty is remarkably reduced, the operation time is shortened, and the learning curve of young physicians is reduced.

To obtain a vanadium sulfuric acid solution from vanadium pentoxide powder with high efficiency, without using a calcination furnace or reducing agent. [Solution] A cell stack comprising a plurality of unit cells, each comprising a positive electrode cell, an ion exchange membrane, a negative electrode cell, and a bipolar plate in order from the first end, wherein the bipolar plate comprises, in order from the first end, a negative electrode electrode which is a graphite molded plate containing 70% by mass or more of graphite and a positive electrode which is formed by coating a titanium plate with a platinum group metal oxide, and carbon felt is arranged in the negative electrode cell; a positive electrode tank connected to each of the positive electrode cells so as to be able to circulate fluid; a negative electrode tank connected to each of the negative electrode cells so as to be able to circulate fluid; and a reaction tank for reacting vanadium pentoxide powder with a vanadium sulfuric acid solution, is provided as an apparatus for producing a vanadium sulfuric acid solution for a vanadium redox flow battery.

The invention relates to the field of medical instruments, in particular to a device for adjusting the stress state of a titanium plate, and the device comprises a shell which is internally provided with a placing groove for placing the interior of the device along the length direction; the at least two adjusting rods are arranged in the shell in a penetrating manner; the moving assembly is arranged on the adjusting rod and meshed with the adjusting rod, the moving assembly can enable the adjusting rod to move in the length direction of the containing groove, and scale marks are arranged on the side, connected with the moving assembly, of the adjusting rod; the fixing piece is arranged at one end of the shell, and the fixing piece is used for enabling the shell to be connected with a patient joint; the thread hanging hooks are arranged at the ends of the adjusting rods, a knotted thread can be hung on the thread hanging hooks, and a sliding groove for the thread hanging hooks to slide is formed in the shell. It can be further guaranteed that the sutures on the two sides of the titanium plate with the stumbles are subjected to the same stress, and then the influence on an operation is reduced.

A first water inlet pipe of a first titanium plate heat exchanger of the system is connected with a water taking well, a first water outlet pipe of the first titanium plate heat exchanger is connected with a first water inlet pipe of a second titanium plate heat exchanger, and a first water outlet pipe of the second titanium plate heat exchanger is connected with a recharge well. The second water outlet pipe is connected with a first water inlet pipe of a steam type lithium bromide heat pump unit, a first water outlet pipe of the steam type lithium bromide heat pump unit is connected with a second water inlet pipe of a second titanium plate type heat exchanger, and the second water inlet pipe is connected with a heat supply network water return pipe and a heat supply pipe. A second water inlet pipe of the first titanium plate type heat exchanger is connected with a heat supply network water return pipe, a second water outlet pipe is connected with a heat supply pipe, a third water outlet pipe of the steam type lithium bromide heat pump unit is connected with a drain cooler, and the first titanium plate type heat exchanger is connected with the drain cooler. And waste heat is fully recovered.

The application discloses a method for avoiding intermetallic compound generation at the interface of a titanium-steel composite plate, which comprises the following steps: S1, decarburization annealing is performed on a steel plate so that a decarburization layer is formed on the surface of the steel plate to be compounded; S2, the surfaces to be compounded of the steel plate and a titanium plate are attached and the periphery is welded to form a first group of blanks; and S3, the first group of blanks is heat rolled after being kept at 800-880 DEG C, and then a titanium-steel composite plate without TiC, FeTi and Fe2Ti intermetallic compounds at the interface is obtained. The method can avoid intermetallic compound generation at the interface of the titanium-steel composite plate without adding an intermediate layer metal, and has the advantages of simple process, low production cost and easy industrial popularization.

The invention provides an electrochemical filtering device suitable for an electroactive membrane. The device mainly comprises a conductive titanium plate, a conductive titanium ring, a cross flow path and a device body made of an acrylic material. The device is low in cost and simple and convenient to design, one part of inflow water can flow through the membrane surface through the cross-flow path, the other part of inflow water directly flows out through the membrane, and filtering is achieved. In the electrochemical filtering device, the electroactive membrane can transmit electricity through the conductive titanium ring to serve as an anode, the conductive titanium plate serves as a cathode, and antibiotics are efficiently removed after an electric field is formed in an aqueous solution.

The present application relates to the technical field of cathode roller titanium ring preparation, and discloses a preparation method of a welded and formed cathode roller titanium ring, comprising the following method steps: step one: opening a groove at both ends of a TA1 titanium plate raw material, and butt jointing through a four-roll plate rolling machine; step two: using plasma automatic welding to weld a longitudinal seam under high-purity argon protection; step three: placing the welded and formed titanium ring into an electric heat treatment furnace for high-temperature homogenization heat treatment; step four: using a ring rolling machine to roll and deform the titanium ring after heat treatment, with a deformation amount of greater than or equal to 40%; step five: correcting the shape of the titanium ring after rolling, and performing overall recrystallization annealing heat treatment; and step six: after annealing, using a numerical control vertical lathe to perform turning processing on the inner wall of the titanium ring, and waiting for subsequent hot charging processes to be used. Compared with the spinning forming process commonly used in China at present, the process flow of the present application is short, the production efficiency is high, the axial and radial directions of the semi-finished titanium ring are fixed through one driving source, the operation is simple, and the manufacturing cost is lower.

The invention discloses a preparation method of a composite target inlaid with a non-metallic material and the composite target, and relates to the technical field of physical vapor deposition coating target materials, the preparation method comprises the following steps: a titanium plate and a copper plate are subjected to explosive welding to form a base material, and a plurality of blind holes are formed in the surface of the titanium plate of the base material; processing a to-be-inlaid non-metallic material into a shape matched with the blind hole; coating conductive silver adhesive in the plurality of blind holes, and placing the to-be-inlaid non-metallic material in the plurality of blind holes to obtain a to-be-cured composite target material; and the to-be-cured composite target material is put into a vacuum curing furnace to be subjected to stepped heating, heat preservation and curing treatment, and the target composite target material is obtained. The technical problems of poor conductivity and target explosion of the target material in the prior art are relieved.

The present invention discloses an electro-assisted tension-compression cyclic loading device and testing method for ultra-thin titanium plates. The device comprises a composite tension-compression specimen, wherein a lateral force is applied to both sides of the composite tension-compression specimen; two pairs of electro-assisted fixtures, respectively clamping both ends of the composite tension-compression specimen, include two oppositely arranged clamping heads. The clamping surface of the clamping heads have a conductive structure, and the conductive structure is connected to an external power source, so that when the composite tension-compression specimen is clamped on the clamping head, the conductive structure contacts the composite tension-compression specimen to transfer current to the composite tension-compression specimen through the conductive structure to heat it. The clamping head is further connected to the loading end of a universal testing machine. The present invention can avoid torsional deformation of the ultra-thin titanium plate specimen during the test.

This invention provides a titanium plate and a method for threading its matching wires. The titanium plate has a fixing hole and a traction hole at both ends of its surface. Between the fixing hole and the traction hole are a set of self-locking holes (first and second), a return hole, and a through hole. The two self-locking holes and the return hole are located near the end of the titanium plate where the fixing hole is located, and the line connecting the center points of the two self-locking holes and the return hole forms a triangle. The through hole set is located near the end of the titanium plate where the traction hole is located, and the number of through holes is even. The titanium plate of this invention possesses all the functions of existing titanium plates. In particular, the matching wires of this invention can self-lock at the two self-locking hole positions through a special threading method, eliminating the need for additional knotting fixation and allowing the ligament graft to have a certain degree of positional adjustment within the bone tunnel.

The invention belongs to the technical field of metal material processing, and discloses a method for preparing a high-strength and high-plasticity titanium alloy plate through deep low-temperature and high-speed pre-rolling, which comprises the following steps: selecting a TA2 industrial pure titanium plate with a strong basal texture as an initial material, and carrying out high-speed multi-pass small-deformation rolling at a liquid nitrogen temperature (77K) to obtain the high-strength and high-plasticity titanium alloy plate. High-density {11-24} and {11-22} compression twin crystal structures are effectively excited in the plate, and a twin crystal network which penetrates through crystal grains and even spreads across a crystal boundary is formed. The twin crystal structure effectively coordinates stress and inhibits dislocation slippage, so that the tensile strength of the titanium alloy plate is remarkably improved, and meanwhile excellent plasticity is kept. The method is simple and controllable in process and suitable for large-size preparation of high-performance titanium plates.

This invention belongs to the field of composite material technology, specifically relating to a method for preparing a high-strength, high-plasticity, and high-toughness multilayer titanium-aluminum composite plate. The steps of this invention include: first, preparing aluminum and titanium plates as raw materials; then, after surface treatment of the raw materials, combining and fixing them; after heat preservation, rolling the fixed plates; and finally, performing solution aging treatment to obtain a multilayer titanium-aluminum composite plate. Through alternating layer design, a three-layer (aluminum-titanium-aluminum), three-layer (titanium-aluminum-titanium), or five-layer (titanium-aluminum-titanium-aluminum-titanium) composite structure is constructed. With a simple preparation process, this invention achieves a significant improvement in plasticity and toughness. This invention provides a low-cost, simple, and mass-producible high-performance composite plate preparation scheme, offering a new material option for lightweight design in aerospace, transportation, and other fields.

The utility model relates to the technical field of water electrolysis hydrogen production, in particular to a stackable electrolytic bath with a voltage detection plate. The electrolytic tank unit comprises an electrode frame, a membrane electrode and a middle electrode plate, an inner frame is arranged in the center of the electrode frame in a hollowed-out mode, the two ends of the inner frame are each provided with a flow guide structure and a hydrogen through opening, and a micropore titanium plate and a titanium mesh are arranged in the inner frame from top to bottom; the upper electrode frame is provided with an anode sealing edge along the inner frame, the lower electrode frame is provided with a cathode sealing edge along the inner frame, the back surface of the upper electrode frame is attached to one side of the membrane electrode, the other side of the membrane electrode is attached to the back surface of the lower electrode frame, one surface of the electrode frame is attached to the middle electrode plate, and the middle electrode plate is provided with a water outlet, a water inlet and a hydrogen port. Compared with the prior art, superposition of a plurality of electrolytic tank units is achieved, the requirements for different oxyhydrogen gas flows are met, electrolysis voltage detection is achieved, the multiple units can be detected respectively, and the technological requirements for assembly and the like are lowered.

The invention discloses a titanium-aluminum composite plate production process which comprises the following steps: S1, base material pretreatment: selecting a titanium plate and an aluminum plate as a composite base material, carrying out plasma etching treatment on a composite surface of the titanium plate, carrying out sand blasting treatment on a composite surface of the aluminum plate, carrying out ultrasonic cleaning by adopting absolute ethyl alcohol after sand blasting on the composite surface of the aluminum plate, and drying for later use; the pretreated titanium plate and aluminum plate are aligned and overlapped, high-temperature-resistant sealant is smeared on the end face of the titanium plate and the end face of the aluminum plate, and the titanium plate is arranged on the upper portion and the aluminum plate is arranged on the lower portion. Compared with the prior art, the method has the beneficial effects that plasma etching treatment is conducted on the composite face of the titanium plate, an oxidation film and oil dirt can be thoroughly removed, meanwhile, rough interface morphology is formed, and the service life of the titanium plate is prolonged; and after the aluminum plate composite surface is subjected to sand blasting treatment, the surface roughness is improved, impurities are further removed through absolute ethyl alcohol ultrasonic cleaning, the cleanliness of the composite surface is guaranteed, and a good foundation is laid for subsequent interface bonding through precise pretreatment of the two base materials.

The utility model discloses a kind of stamping die of self-bonding amorphous material, it includes the upper die and lower die of being suitable, the upper die includes male die and stripper plate, the lower die is equipped with the female die of being suitable with the male die, the male die can be close to or away from the female die to stamping amorphous material and form amorphous wafer, the blade edge of the male die and / or the female die is treated by titanium plating. The blade edge of male die and / or female die is treated by titanium plating to delay the wear rate of the blade edge of male die and female die, and then prolong the service life of stamping die, realize mass production.

The cathode plate comprises a conductive beam, an aluminum plate and two titanium plates, the lower end of the conductive beam is fixedly connected with the upper end of the aluminum plate, the upper portion of the side wall of the aluminum plate is connected with the two titanium plates through a plurality of screws, the top of the conductive beam is fixedly connected with two lifting lugs, one end of the conductive beam is fixedly connected with a conductive head, and the other end of the conductive beam is fixedly connected with the aluminum plate. The end, away from the conductive head, of the conductive beam is sleeved with an insulation sleeve. The cathode plate is easy and convenient to manufacture, the titanium plate can be repeatedly used and can also be directly applied to an existing cathode plate made of a pure aluminum material, and the problems that the cathode plate made of the pure titanium material is high in cost, poor in electric conductivity and firm in adhesion of separated zinc are solved. The two titanium plates are located above and below the liquid level line of the aluminum plate, the corrosion resistance and the knocking resistance of the cathode plate are improved through the liquid level upper part, zinc is conveniently separated out to be opened in the titanium plates through the liquid level lower part, the labor intensity of workers is reduced, mechanical zinc stripping is facilitated, the service life of the cathode plate can be prolonged, the production cost is saved, and the economic benefits are improved.

The invention belongs to the new technical field of white spirit brewing, and particularly relates to a method for accelerating aging of white spirit through a hydrothermal synergistic electro-catalysis process, which specifically comprises the following steps: introducing newly-brewed white spirit into an aging container, carrying out electro-catalysis treatment, selecting titanium-plated platinum as an electrode material, and carrying out hydrothermal reaction synergistic treatment at the same time; after electro-catalysis treatment, constant-temperature water bath treatment is conducted, the operation is repeated for 3-5 times, and the treatment interval is 30-50 min. The content of acetal in the white spirit treated by the method is increased, the content of ester substances such as ethyl hexanoate and ethyl acetate is obviously increased, and irritant components such as low-grade saturated fatty aldehyde and fusel oil are reduced. The treated white spirit has the aroma of aged white spirit, tastes soft and soft, contains typical aromatic odor of the white spirit, has prominent flavor and is mellow and pleasant during drinking, and is equivalent to natural ageing for 1-3 years, so that the ageing period of the white spirit is greatly shortened, and the ageing cost of the white spirit is reduced.

The utility model discloses a composite metal plate with a steel plate and a titanium plate, which comprises a composite metal plate body, a base layer is arranged in the composite metal plate, the upper end of the base layer is connected with a transition layer, the upper end of the transition layer is provided with a functional layer, and the surface of the functional layer is provided with a decorative layer. The utility model has the beneficial effects that the steel plate and the titanium plate are combined by arranging a group of transition layers made of nickel alloy, so that the interface combination strength of the steel plate and the titanium plate can be effectively improved, the layering phenomenon caused by large physical difference of the steel plate and the titanium plate is avoided, the service life of the device is prolonged, and the use effect of the device is improved.

This invention provides a titanium plate grinding machine, comprising a gantry frame, a grinding assembly, and a drive assembly. The drive assembly is mounted on the gantry frame. The grinding assembly includes a grinding head beam mounted on the drive assembly and a grinding head assembly mounted on the grinding head beam. The grinding head assembly is a four-grinding-head structure, including a first grinding head, a second grinding head, a third grinding head, and a fourth grinding head. The drive assembly includes a traveling motion device, a lateral movement device, and a lifting device for driving the grinding head assembly to move in three-dimensional space. This invention employs a four-grinding-head structure, coupled with an inverted T-shaped grinding head beam, significantly improving grinding efficiency and equipment stability, and avoiding tool marks. All motion axes are upgraded to servo control, improving grinding accuracy and uniformity. The grinding wheels are locked with flange bolts, simplifying disassembly and assembly and ensuring grinding quality. A new spray cooling system and a removable sludge tank are added to achieve centralized waste removal and water resource recycling.

The application discloses an electrolytic water device, which comprises a first end plate, a first insulating layer, an anode plate, a second insulating layer, a third insulating layer, a neutral plate, a fourth insulating layer, a fifth insulating layer, a cathode plate, a sixth insulating layer and a second end plate, a first electrolytic tank, a second electrolytic tank, a first proton exchange film, a first microporous titanium plate, a first multi-layer filter screen group, a second proton exchange film, a second microporous titanium plate, a second multi-layer filter screen group, a water inlet joint, a first gas outlet joint, a second gas outlet joint, a first water inlet hole, a first water inlet channel, a second water inlet channel, a first gas outlet hole, a first exhaust channel, a second exhaust channel, a second gas outlet hole, a third exhaust channel and a fourth exhaust channel. The application fills the corresponding multi-layer filter screen group in the electrolytic tank, so that water is uniformly distributed in the whole first electrolytic tank and the second electrolytic tank, the problems of blockage, insufficient water pressure and dry burning are avoided, the hydrogen production effect is ensured, and the product reaches the use requirement.

The utility model relates to a titanium and titanium alloy scrap recovery processing line which comprises a crusher, a cleaning device, a stoning machine, a color sorter, a distributing machine and an electric control system, the crusher, the cleaning device, the stoning machine, the color sorter and the material distributing machine are all in control connection with the electric control system; the cleaning device comprises an ultrasonic cleaning machine, a high-pressure roller cleaning machine and a roller type drying machine; the crusher is sequentially connected with the ultrasonic cleaning machine, the high-pressure roller cleaning machine, the roller type drying machine, the stoning machine, the color sorting machine and the material distributing machine; the titanium and titanium alloy scrap recycling device is reasonable in design, scraps generated in the machining process of titanium ingots, titanium plates and Taiwan bars are subjected to crushing, screening, ultrasonic cleaning, drying, color sorting and material distribution recycling, titanium and titanium alloy scraps are recycled, the titanium and titanium alloy scrap recycling quality is improved, waste is completely eradicated for enterprises, and expenditure is saved.

The invention relates to the technical field of belt carrier titanium plates for ligament reconstruction, in particular to a self-adaptive adjusting belt carrier titanium plate for ligament reconstruction, which comprises a self-adaptive adjusting mechanism comprising a non-metal coil used for pulling a ligament graft to a corresponding preset reconstruction position and transmitting stretching torque to the ligament graft, the metal coil is used for converting the horizontal movement moment into a stretching moment; the limiting assembly is used for limiting the distance between the metal coil and the bone tunnel outlet; the limiting assembly comprises a limiting cylinder used for changing the position of the metal coil in the bone tunnel and a driven limiting gear used for limiting the elongation of the limiting cylinder; the titanium plate comprises a titanium plate body and a driving limiting gear block used for limiting the rotating radian of the driven limiting gear; the positioning needle is used for limiting the penetrating direction of the self-adaptive adjusting mechanism and the titanium plate in the bone tunnel. According to the invention, the accuracy of self-adaptive adjustment of the ligament graft is improved.

The invention discloses a coal slime rare earth leaching method which comprises the following steps: S1, dispersing coal slime, conductive carbon black and a binder in a solvent to obtain a slurry-shaped electrode material; coating the slurry electrode material on the surface of a titanium plate, and drying to obtain a coal-based electrode plate; and S2, carrying out electrochemical treatment by taking the coal-based electrode plate as an anode, a blank titanium plate as a cathode and a mixed solution of sulfuric acid and hydrogen peroxide as an electrolyte, and then collecting the electrolyte. According to the application, Fe < 2 + > of the coal slime is utilized, and the applied electric field and H2O2 in the electrolyte solution generate a synergistic effect, so that on one hand, the circulation of iron is maintained in the electrode process; and on the other hand, Fe < 2 + > dissolved out in situ from the coal slime and H2O2 construct a Fenton reaction system, and mineral lattices loaded with rare earth elements in the coal slime are effectively destroyed through the synergistic strengthening effect of the electric field effect and the Fenton reaction, so that green and efficient leaching of the rare earth elements is achieved.