694results about How to "Simplify processing steps" patented technology

The invention discloses a low-smell toughening polyamide (PA)6 material. The low-smell tougheningPA6 material comprises the following raw materials in part by weight: 60 to 95 parts of nylon 6 resin, 5 to 40 parts of polyolefin, 0.5 to 5 parts of maleic anhydride, 0.1 to 0.5 part of peroxide and 0.2 to 5 parts of other additive. By the preparation method, the processing step of preparing toughening polyamide (PA)6 material is simplified, namely the primary two steps are combined into one step, and the preparation of the toughening polyamide (PA)6 material is realized by controlling a processing temperature. The production cost is reduced by the method; the prepared toughening polyamide (PA)6 material is excellent in performance and low in smell, has a certain practicability and commercial value and can be applied in fields, such as vehicles, electronics/electrical appliances and the like.

The invention discloses hemp-stem active carbon, of which the specific surface area is 800-3,000m<2>/g, the total pore volume is 0.5-1cm<3>/g and the pore diameter is 0.5-4nm. The hemp-stem active carbon has a layered micropore-mesopore structure. The invention further discloses a preparation method of the hemp-stem active carbon, a forming method of hemp-stem active carbon and application of formed hemp-stem active carbon in preparation of a filter element of a water purifier. The hemp-stem active carbon provided by the invention has a layered micropore-mesopore structure, a super-large specific surface area and a high pore volume and can absorb various impurities in water more easily.

The invention provides a pearl drilling-threading integrated device. The pearl drilling-threading integrated device comprises a frame; a hopper, a feeding mechanism, a clamping mechanism, a drilling mechanism and a threading mechanism are mounted on the frame; the feed mechanism is composed of a guide pipe and a feeding component; the clamping seat of the clamping mechanism is provided with a feeding hole, a clamping position and a discharge hole; the clamping position comprises a positioning cavity, a cover, a cover lifting mechanism, a hold-down head and a hold-down cylinder; each of the first drilling unit and the second drilling unit of the drilling mechanism is composed of a drilling motor, a drill bit and a feeding cylinder, and the drill bit is aligned to the clamping position; the first drilling unit and the second drilling unit are used for drilling holes alternately; the threading mechanism comprises a first threading manipulator and a second threading manipulator, a transmission mechanism, a power part and a needle; the first threading manipulator and the second threading manipulator are used for clamping the needle alternately. The pearl drilling-threading integrated device is capable of realizing automatic drilling and threading on pearls.

The invention relates to a pearl drilling and threading integrated device which comprises a frame, wherein the frame is provided with a hopper, a charging mechanism, a clamping mechanism, a drilling mechanism and a threading mechanism, wherein the charging mechanism consists of a feeding pipe and a charging assembly; the clamping mechanism is provided with a clamp base which is provided with a feed inlet, a clamping station and a discharge opening; the clamping station comprises a positioning nest, a baffle hood, a baffle hood lifting mechanism, a compressing head and a compressing air cylinder; the drilling mechanism comprises a drilling motor, a drill and a feeding air cylinder; the threading mechanism comprises a first threading mechanical arm, a second threading mechanical arm, a transmission mechanism, a power piece and a needle; the threading mechanism has a threading man-hour and a needle return man-hour, the first and second threading mechanical arms in the two man-hours are close firstly and then are kept away from and the two threading mechanical arms alternately clamp the needle; the first threading mechanical arm in the threading man-hour feeds the needle to the second threading mechanical arm; and the second threading mechanical arm in the needle return man-hour feeds the needle to the first threading mechanical arm. The pearl drilling and threading integrated device provided by the invention has the advantages of automatically drilling and threading pearls.

The invention discloses a deep hole machining process. The deep hole machining process includes: step one, drilling: machining deep holes to be machined on a numerical control machine tool by a connecting rod drill; step two, broaching: replacing a cutting drill of the connecting rod drill in the step one with a broach drill, and then machining drilled holes obtained in the step one by the numerical control machine tool; and step three, reaming: machining holes obtained in the step two on the numerical control machine tool by a long-rod reamer. The connecting rod drill comprises the cutting drill, a first handle, and a first connecting rod mounted between the cutting drill and the first handle coaxially. The long-rod reamer comprises a reamer head, a second handle, and a second connecting rod mounted between the reamer head and the second handle coaxially. The deep hole machining process is simple in steps, simple and convenient in actual operation, low in input cost, high in machining quality and quick in machining speed, and the problems that machining is inconvenient, actual operation is not easy to control, machining efficiency is low, machining precision is hard to guarantee and the like in the existing deep hole machining process by drilling prior to boring can be solved effectively.

The invention provides an internal and external ring fixed piezoelectric-drive multi-ring gyroscope and a preparation method for the same. The gyroscope comprises a multi-ring resonator with 5 to 8 rings, a plurality of groups of spokes positioned between every two adjacent rings of the multi-ring resonator, a fixed sliding chute for supporting an external ring of the multi-ring resonator, a stepped cylindrical support rod for supporting an internal ring of the multi-ring resonator and discrete electrodes positioned on the upper surface of the multi-ring resonator, wherein an angular difference is formed between every two adjacent groups of spokes; the outermost ring of the multi-ring resonator is fixed, the innermost ring of the multi-ring resonator is fixed by the stepped cylindrical support rod, and only the middle rings can rotate freely. According to the gyroscope and the preparation method for the same, the internal and external rings of the multi-ring resonator are fixed, the electrodes are arranged on the upper surface of the multi-ring resonator, and the gyroscope has the advantages of small size, stable structure, sensitivity in response and the like, and has high symmetry, so that higher performance can be achieved.

The invention provides a machining method of a high-precision deep and long hole thin-walled sleeve part. The machining method comprises the following steps that a rod is clamped and subjected to rough-machining forming, the machining allowance is reserved, and a process chuck is reserved; a roughly-machined workpiece is subjected to thermal treatment aging; and the process chuck of the workpieceis clamped by a lathe, finish machining of the workpiece is completed during primary clamping machining according to a workpiece drawing, and finish machining is divided into the following working steps that a core shaft, a lining and a screw are manufactured; the process chuck is clamped on the lathe, the core shaft is crammed into roughly-machined inner holes of the workpiece, and an outer circle of the part is machined to the required dimension; the screw is screwed into a core shaft threaded hole, and the core shaft is taken out of the workpiece; the lining sleeves the machined outer circle of the workpiece, the outer end face of the workpiece is machined, and the large and small inner holes and the bottom face are bored; tool setting is conducted from the bottom face, the outer end face of the workpiece is machined, and the length dimension L2 of the workpiece is ensured; and the workpiece is cut off, and the total length L1 of the workpiece is ensured. According to the machiningmethod of the high-precision deep and long hole thin-walled sleeve part, the rigidity of the part is improved, machining deformation of the part is reduced, vibration during thin-walled part machiningis reduced, and the machining quality and surface roughness are improved.

The invention discloses a middle frame manufacturing method and a middle frame structure and belongs to the technical field of 3C small household electrical appliances. The middle frame manufacturing method provided by the invention comprises the following steps: after splicing a plurality of bottom borders and a plurality of side borders, which are manufactured by punching metal profiles, into an outer border and conducting pressure casting on a metal plate to manufacture a middle plate, fixing the middle plate in a die cavity, carrying out primary injection molding to form a plastic part, then conducting glue binding on the outer border, the middle plate and the plastic part to form the middle frame structure, and finally carrying out secondary injection molding and surface treatment on the middle frame structure. As for the method, by adopting a metal plate pressure casting and injection molding technology, processing steps are simplified, the processing difficulty is lowered, the processing time is saved, the utilization ratio of raw materials is also increased, and thus the processing cost is lowered. The middle frame structure processed and formed by the method has attractive, fashionable, high-end and elegant appearance and has the advantages of simple structure, strong integrality, low cost, good heat dissipation performance, high whole strength and the like.

To provide a process for making a lithographic printing plate that exhibits safety, and excellent developability and processing capacity in single solution processing using a processing solution having a pH in a weakly alkaline region, and preferably a pH of 8.5 to 10.5. A process for making a lithographic printing plate, the process including a preparation step of preparing a lithographic printing plate precursor having above a hydrophilic support an image-forming layer that contains an infrared-absorbing agent, a polymerization initiator, an ethylenically unsaturated compound, and a binder polymer, an exposure step of imagewise exposing the lithographic printing plate precursor, and a processing step of processing the imagewise exposed lithographic printing plate precursor using a processing solution containing carbonate ion, bicarbonate ion, and a water-soluble polymer compound.

The invention relates to a martensite broad hot strip with tensile strength of 1500MPa level and a production method of the martensite broad hot strip. The martensite broad hot strip comprises C (carbon), Si (silicon), Mn (manganese), P (phosphorus), S (sulphur), Nb (niobium), Ti (titanium) , B (boron), AlS (acetolactate synthase) and N (nitrogen), with the balance being Fe and inevitable impurity elements. Weight percentages of the C, the Si, the Mn, the Nb, the Ti, the B and the AlS are 0.13-0.17%, 0.40-0.60%, 1.30-1.60%, 0.020-0.050%, 0.02-0.05%, 0.0010-0.0030% and 0.010-0.060% respectively. Weight percentages of the P, the S and the N are smaller than or equal to 0.025%, 0.020% and 0.005% respectively. The production method includes smelting molten steel according to the set components, and subjecting the molten steel to continuous casting to obtain a plate blank; heating the plate blank to 1240-1300 DEG C, and performing high-pressure water descaling, controlled rolling, control-rolled cooling and reeling to obtain the broad hot strip. The produced broad hot strip has the advantages that yield strength is larger than 1000MPa, tensile strength is larger than 1500MPa, and ductility is larger than 10%; the broad hot strip is applied to hot-rolled plates of shear blades of excavators, a quenching process is omitted, and production cost is saved.

The invention provides an outer edge fixed type electrostatic driving multi-ring gyroscope and a preparation method thereof. The gyroscope comprises a multi-ring resonator, a fixed sliding groove, a plurality of spokes, a cylindrical supporting rod and dispersive electrodes, wherein the multi-ring resonator contains five to eight rings; the fixed sliding groove supports the multi-ring resonator; the spokes are positioned between every two adjacent rings of the multi-ring resonator and are used for connecting the two adjacent rings of the multi-ring resonator; an angle difference exists between the positions of every two adjacent rings; the cylindrical supporting rod is positioned in the center of the multi-ring resonator; a central shaft of the cylindrical supporting rod is coincided with that of the multi-ring resonator; the dispersive electrodes are positioned on the cylindrical supporting rod; the outermost ring of the multi-ring resonator is fixed, and only radial free vibration is retained. Due to the fact that the outer edge of the multi-ring resonator is fixed and the dispersive electrodes are arranged in the center of the inner ring, the outer edge fixed type electrostatic driving multi-ring gyroscope has the advantages of small size, stable structure, sensitive response and the like, and is high in symmetry, so that higher performance can be achieved.

The invention discloses a method for producing industry molybdenum oxide from molybdenum concentrate, which comprises the following steps of: 1, crushing and grinding the molybdenum concentrate; 2, performing temperature rise leaching by adopting acid liquor; 3, performing heat filtration; 4, washing powder; 5, pressurizing for oxidization; 6, filtering, and correspondingly obtaining a filter cake and filter liquor; 7, washing the filter cake: washing the filter cake by using water, collecting the washing solution after the washing, mixing the washing solution and the filter liquor in the step 6, obtaining molybdenum solution, taking 10 to 50 percent of the molybdenum solution as pressurized oxidization additive solution for the next pressurized oxidization; and 8, drying and preparing the industry molybdenum trioxide. The method has the advantages of reasonable design, simple processing steps, convenient implementation, good using effect, high economic value, and the molybdenum recovery rate of over 99 percent, and can effectively solve the problems of low molybdenum recovery rate, serious pollution of flue gas and smoke, difficulty in producing acid from the generated low-concentration sulfur dioxide and the like in the process of producing the industry molybdenum oxide from the high-lead molybdenum concentrate in the prior art.

The invention provides a disc multi-ring outer S-shaped flexible beam resonator gyro and a preparation method thereof. The resonator gyro comprises: a substrate; a disc multi-ring outer S shaped flexible beam resonator, which includes a most peripheral ring, a plurality of concentric rings, a plurality of S-shaped flexible beams and multiple groups of spokes, wherein the most peripheral ring is connected to the substrate, the concentric rings are connected through the multiple spokes, and both ends of the plurality of S-shaped flexible beams are all connected to the inside of the most peripheral ring and the outside of the concentric rings' largest ring; and a group of electrodes that are distributed on the inside edge of the disc multi-ring outer S-shaped flexible beam resonator, with each electrode being connected to the substrate respectively. The disc multi-ring outer S-shaped flexible beam resonator gyro provided by the invention has the advantages of small volume, stable structure, and sensitive response, etc., and has good symmetry, thus being able to achieve high performance.

The invention provides a piezoelectric driving multi-ring gyroscope with fixed outer edge and a preparation method of the piezoelectric driving multi-ring gyroscope. The piezoelectric driving multi-ring gyroscope comprises a multi-ring resonator with 5-8 rings, a fixed chute for supporting the multi-ring resonator, a plurality of groups of spokes arranged between every two adjacent rings of the multi-ring resonator and used for connecting the rings of the multi-ring resonator, a dispersed electrode positioned on the surface of the inner ring of the multi-ring resonator, wherein certain angle difference exists between every two adjacent groups of spokes, the outermost ring of the multi-ring resonator is fixed, and only radial vibration freedom is kept. According to the invention, the outer edge of the multi-ring resonator is fixed, the dispersed electrode is arranged in the center of the ring, and the piezoelectric driving multi-ring gyroscope has the advantages of small volume, stable structure, sensitive response and the like, and has good symmetry and high performance.

The invention relates to a preparing method of a 3D printing intelligent deforming material. The method aims at printing complex irregular shapes such as a gradient structure, a biology structure, a spiral structure and a microstructure, the method is precise and efficient, simple and easy to implement, and the 3D printing intelligent deforming material of a complex structure and with large deforming is prepared, and the method comprises following steps of firstly, preparing of polymer wires, and secondly, 3D printing of the intelligent deforming material. On the basis of the 3D printing technology, polyether-ether-ketone powder and a carbon fiber serve as the main material, through control design of the printing shape in the 3D printing process, the path can be programmed, the crossed angle between layers can be changed, the pre-deformed structure is more complicated and diverse, deforming is benefited due to being parallel to the printing path, the larger deforming and the deformingrestore rate can be obtained, through the preparing method, the machining step is simplified, production cost is saved, and machining efficiency is improved.

The invention provides a motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot. The motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot comprises a drivingpart and an executing part; the driving part includes a shoulder rotating motor, elbow flexion and extension pneumatic muscle, wrist flexion and extension pneumatic muscle; the executing part includesa seat, a shoulder part and upper limb mechanical arms; the seat includes an upper seat back, a lower seat back, a seat back height adjustment mechanism, handholding handles, a seat cushion, a seat cushion height adjustment mechanism and a bottom moving support; the shoulder part includes a shoulder part motor fixing mechanism and a motor rotating mechanism; the shoulder part motor fixing mechanism is fixedly connected with the upper end of the seat back of the seat in an adjustable mode, and a rotating mechanism is fixedly connected with the mechanical arms; and the upper limb mechanical arms include upper arms, small arms and hand part fixing mechanisms, and the upper arms include upper arm fixing mechanisms. According to the motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot, the horizontal rotation of a left arm or a right arm around a shoulder joint can be realized, the three-free-degree movement of the flexion and extension of a elbow part and the flexionand extension of a wrist part can be achieved, safety is high, bionic performance is high, weight is light, the cost is low, and the application range is wide.

The invention discloses a preparation method of a C/C composite tube of an optical telescope. The method comprises the following steps: 1) carbon fiber fabrics and carbon fiber felts are spread layer by layer, needle-punching is performed on each layer to prepare a preformed reinforcement body, the density of the preformed reinforcement body is estimated before layer spreading and the radial density of the preformed reinforcement body is calculated according to the estimation result; 2) composite densifying is performed; 3) high temperature treatment is performed; and 4) the subsequent treatment is performed. The densifying process comprises the following steps: 201) performing gas-phase carbon-settling densifying treatment, namely using a gas-phase carbon-settling device to perform gas-phase carbon-settling treatment; and 202) performing resin impregnation, curing and carbonization treatment, namely performing further densifying treatment on the preformed reinforcement body after thegas-phase carbon-settling densifying treatment. The method has reasonable design, simple processing steps, low input cost, simpleness in operation and convenience in quality control; and the processed C/C composite tube has good performance, higher overall strength and stability and an ultralow thermal expansion coefficient.