235results about How to "Avoid cumbersome procedures" patented technology

An automatic straightening machine for a shaft tube part comprises a rack, an electric cylinder, a floating work table, a left rotating device, a right clamping device, a supporting seat and a detecting sensing device. The rack is of a frame structure, the electric cylinder and the floating work table are arranged on an upper transverse beam and a lower transverse beam of the rack correspondingly,and the left rotating device and the right clamping device are arranged on the left side and the right side of the floating work table correspondingly. The supporting seat is arranged in the centralposition of a lower fixing plate of the floating work table, and the detecting sensing device is arranged in the supporting seat. According to the automatic straightening machine for the shaft tube part, in the straightening process, a to-be-straightened piece is clamped at a time so as to achieve the multi-time detecting and straightening functions, and the tedious work procedures that during straightening, after deflection measurement is completed every time, clamping tips need to be loosened, and then the to-be-straightened piece is placed on a V-shaped block to be straightened are avoided;and meanwhile, the problem of maximum deflection face deviation when the clamping tips are loosened to enable the to-be-straightened piece to be placed at the support point is solved, and the efficiency of the straightening machine and the accuracy of straightening are improved.

The present invention provides an assembly type solar photovoltaic power generation road surface module and application thereof. The module comprises at least the following structures from bottom to top: an insulated sealing layer, a solar photovoltaic panel layer, and a transparent anti-slide wearing layer. The module is mainly used for solar photovoltaic power generation. The assembly type solar photovoltaic power generation road surface module can meet both the road bearing demand and the solar photovoltaic power generation demand, and has a broad market prospect.

The invention discloses a radial-reverse combination extrusion forming mold of a thin-wall cylindrical piece with an outer boss. The mold comprises an upper mold assembly, a lower mold assembly, a male mold, a female mold, a mandrel, a core support, an extrusion ring, an ejection block and a movable block, wherein the male mold is mounted on the upper mold assembly, the core support is mounted atthe bottom of the mandrel, the mandrel drives the core support to slide and stretch out and draw back of the male mold, and the extrusion ring sleeves the part stretching out of the core support; thefemale mold is mounted on the lower mold assembly, a cavity and a movable block groove are arranged in the female mold, the core support and the cavity are located on the same central shaft, after themovable block groove allows the movable block to be placed and is filled with the movable block, the shape of the cavity is a full cylinder shape, the ejection block is arranged in the cavity, the height of the ejection block is smaller than the height of the cavity, the upper part of the movable block protrudes out of the ejection block, the side surface forms an inwards-concaved boss cavity, and the outer diameter of the extrusion ring is the same as the diameter of the female mold cavity. The radial-reverse combination extrusion forming mold of the thin-wall cylindrical piece with the outer boss can directly form the thin-wall cylindrical piece with any position, size and number of bosses at one step, and the mechanical performance of the thin-wall cylindrical piece is greatly improved.

The invention discloses a radial-reverse combined extrusion molding method for a thin-walled cylindrical piece with outer bosses. A radial-reverse combined extrusion mold for the thin-walled cylindrical piece with the outer bosses is related in the method. The mold comprises a male mold, a female mold, a mandrel, a core support, an extrusion ring, a top block and a movable block. The core supportis installed at the bottom of the mandrel. The extrusion ring is connected to the extending outer portion of the core support in a sleeving mode. A cavity and a movable block groove are formed in thefemale mold. The upper portion of the movable block protrudes out of the top block. An inwards-concave boss type cavity is formed in the side face of the top block. The method includes the steps thatthe male mold downwards presses the extrusion ring and a hollow blank, the blank flows in the radial direction to fill in the boss type cavity, then the extrusion ring is omitted, the hollow blank moves down along with the male mold to be extruded into the thin-walled cylindrical piece, the thin-walled cylindrical piece is reversely extruded to rise, the movable block is driven to move up together, and the height of the thin-walled cylindrical piece is increased. By means of the scheme, the thin-walled cylindrical piece with an arbitrary number of bosses with arbitrary sizes at arbitrary positions can be directly formed at a time, and the mechanical performance of the thin-walled cylindrical piece is greatly improved.

Provided are a structure of an alternative folding flange type steel plate shear key and a construction method thereof. The steel plate shear key includes a ribbed plate which has semicircular holes,trapezoidal flange plates alternatively folding, and semicircular end plates. The semicircular hole is internally provided with a horizontal through rebar. A vertical bending rebar is arranged among the flange plates. An upper concrete panel is poured on a steel beam top plate, and the upper concrete panel completely covers the steel plate shear key. The construction method comprises the followingsteps: cutting and forming steel plates used in the shear key, alternatively folding the trapezoidal flange plates and the end plates, welding the ribbed plate integrally with the steel beam top plate, placing the horizontal through rebars and the vertical bending rebar, binding the structure using a reinforcing mesh, pouring the upper concrete panel and normally maintaining to set time, dismounting a formwork. The alternative folding flange type steel plate shear key is welded integrally with a steel beam, cooperative work of upper concrete and a lower steel beam is realized. The structure is advantaged by simple structure, convenient and fast construction, and little steel material waste, and is beneficial for popularization and application of a steel-concrete combined bridge.

The invention belongs to the technical field of road engineering, and particularly relates to a road reflection crack welding material and a construction process thereof. The road reflection crack welding material is prepared by the following components in weight percentage: 80-85% of aggregate, 10-15% of high polymer material and 3-5% of additive; and road reflection cracks are repaired by such processes as detecting, sorting, cleaning, punching, welding and testing. The road reflection crack welding material uses the high polymer material as adhesive so as to be effectively combined with an asphalt surface layer and a base layer to form a whole, so that the cracks can be repaired and a structural damage problem generated from the cracks can be solved; and the construction is carried out under normal temperature without heating, and not affected by the season, air temperature and environment, so that the cracks can be repaired from bottom to top. The road reflection crack welding material has low production cost, a simple proportioning and construction process and extensive construction conditions, and is firm and wearable, and can be combined with the road surface to form the whole.

The invention relates to a multi-hook-face titanium alloy part forming device and method. According to the technical scheme, a male die is pressed to coarsely manufacture a workblank into a multi-hook-face titanium alloy part with the unfolded appearance; deburring, washing, lubricant coating are carried out; the device is arranged on a heat engine to be pre-heated into 550 DEG C to 600 DEG C, and meanwhile the workblank is pre-heated into 550 DEG C to 600 DEG C; the pre-heated workblank is arranged between a blank holder and a female die, and after the blank holder and the female die are combined tightly, the temperature ranging from 550 DEG C to 600 DEG C is kept, the clamping pressure is 40 t, the female die slowly descends at the descending speed ranging from 5 mm/min to 6 mm/min, the female die stays for three minutes to five minutes after descending for three to five minutes every time, the process is executed three times till the female die and the male die are closed, and the pressure is kept for four minutes to five minutes; the appearance is manufactured, and checking is carried out. The workblank in the non-working area is clamped tightly through the blank holder force of the blank holder, and wrinkles and cracks produced by tremendous changes of the plate face of the workblank when the dies are closed are avoided.

The invention discloses a feed particle-producing machine used for agricultural machinery. The machine includes a housing body, a screw-shaft motor, a first extrusion hole and a second extrusion hole.A hopper is arranged on the upper side of the housing body. A support column is arranged under the left end of the housing body. A wheel is arranged under the support column. A high-pressure water pump is arranged on the right side of the support column. A water tank is arranged on the right side of the high-pressure water pump. A power switch is arranged on the upper left end of the water tank.A plurality of improvements are made in the prior feed particle-producing machines. Through the arrangement of the water tank, the water pump, a flow meter and a heater, feed particles of different sizes can be produced by the machine. Feeding water into a feed inlet and performing heating can endow feed with uniform water content and a moderate aging degree and can kill other pathogens like parasites in the feed so as to avoid the feed with excessively high or excessively low water content causing the produced feed particles with excessively more powder which cause extrusion hole blockage andinconvenient transportation and storage.

The invention relates to a pre-tightening force measurement device of a high-strength bolt. The pre-tightening force measurement device comprises a first strain gage, a second strain gage and a rigid sleeve. The first strain gage and the second strain gage are symmetrically attached to the two sides of a screw, the screw is sleeved with the rigid sleeve, a first hole and a second hole corresponding to the first strain gage and the second strain gage are formed in the two sides of the rigid sleeve respectively, and therefore the first strain gage and the second strain gage are connected with a strain tester after being connected in parallel. The screw and the rigid sleeve are screwed together through a nut. On the premise of guaranteeing that a bolt bar is not damaged, the pre-tightening force measurement device can achieve real-time and accurate measurement of pre-tightening force of the bolt, and therefore the service condition at the connection portion of a connection component of the high-strength bolt can be monitored and detected.

The invention discloses an in-situ preparation method for a cubic copper oxide/graphene aerogel composite material. The method comprises the following steps of: S1) putting a copper net into 1-3M hydrochloric acid, absolute ethyl alcohol and deionized water in turn, performing ultrasonic cleaning and then drying; S2) dispersing graphene oxide into the deionized water and ultrasonically treating for 1-3 hours, thereby acquiring a graphene oxide dispersion liquid in the concentration of 1-5mg mL-1; S3) pouring the graphene oxide dispersion liquid acquired in the step S2) into an autoclave liner, putting the copper net acquired in the step S1) into the autoclave liner and performing hydrothermal reaction, wherein the temperature of the hydrothermal reaction is at 120-200 DEG C and the reaction time is 6-15h; and S4) taking out the product acquired from the step S3), quenching and performing freeze drying, thereby acquiring the copper oxide/graphene aerogel composite material, wherein the freeze drying time is 12-48h, the freeze drying temperature is at -30 to -50 DEG C and the vacuum degree is at 10-30Pa.

The invention relates to a preparation method of large-particle-size hollow polymer microspheres. The preparation method comprises the following steps: preparing a metal hydroxide colloidal dispersant by the prior art, sequentially adding an oil phase (which is composed of a vinyl aromatic monomer, methyl acrylate (MA) and/or ethyl acrylate (EA) and contains an oil-soluble peroxide initiator) and a water phase containing a small amount of polymerization inhibitor into the metal hydroxide colloidal dispersant, carrying out high-speed shear emulsifying dispersion, transferring the emulsified dispersion solution into a reactor, and carrying out microsuspension polymerization to finally obtain the large-particle-size hollow polymer microspheres. The technique is one-step synthesis, is simple to operate and mild in reaction conditions, does not use any organic solvent as a pore forming agent, and has the advantages of environment friendliness and low pollution. The obtained large-particle-size hollow polymer microspheres are easy to separate.

The invention relates to a selective chemical plating method for polymer substrate surfaces. The method includes the steps: (a) performing pretreatment for the polymer substrate surfaces; (b) printing base coat on the polymer substrate surfaces by the aid of a coating process, and drying; (c) selectively printing sensitizing solution on the polymer substrate surfaces; (d) immerging polymer substrates into activating solution to activate; (e) chemically plating to obtain surface selectivity metallization polymer substrates. The method is simple in process and low in cost and has excellent selectivity and application prospects in fields such as flexible printed circuit boards and integrated circuits.

The invention discloses a post-earthquake self-recovery embedded energy dissipating steel column base. The post-earthquake self-recovery embedded energy dissipating steel column base comprises an upper column section, a lower column section, a buckling-restrained energy dissipating plate and a high-strength steel rod; the upper column section is located on the upper part of the lower column section, the high-strength steel rod is arranged in the upper column section and the lower column section, and the buckling-restrained energy dissipating plate is fixed to the connection of the upper columnsection and the lower column section. The post-earthquake self-recovery embedded energy dissipating steel column base has the advantages that two-way bearing is high, two-way energy consumption is high, two-way post-earthquake self recovery is carried out, the stress is simple and clear, excessive local stress after the column base is pried is avoided, on-site construction is convenient, the usefunction of the building cannot be affected.

The invention discloses a decorative sheet for coating. The decorative sheet comprises a decorative surface and a sheet body; the sheet body is located on the decorative surface and provided with coating grooves; and one surface of each coating groove is in a step shape. According to the decorative sheet for coating, a force bearing section is formed through the step-shaped surfaces, so that the strength for bending the decorative surface is relieved through the force bearing section when the decorative surface is bent, and a right angle even an acute angle can be formed when the decorative sheet is bent; original wood veneer coating is changed, and a base material is directly coated with the decorative sheet; and as the decorative surface can be subjected to paint surface processing through a roller painting technology, the paint spray technology can be achieved mechanically in a batch mode, and the processing convenience of furniture is greatly improved.

The invention relates to the technical field of polishing, and discloses an electrochemical polishing device and polishing method for a vascular stent. The polishing device comprises a lifting assembly, an anode assembly, an adjusting assembly and a cathode assembly; the lifting assembly comprises a lifting frame and a first driving mechanism; the anode assembly comprises an anode, an elastic piece, a vibration source and a metal wire which are connected in sequence; the metal wire is used for mounting the vascular stent and has a contracted state and an expanded state, wherein in the contacted state, the metal wire is movably connected with the vascular stent, and in the expanded state, the metal can be fixedly connected with the vascular stent; the adjusting assembly comprises a first supporting frame and a second driving mechanism, and the first supporting frame is connected with the metal wire and provided with a vertical position where the metal wire can be in the contracted stateand a horizontal position where the metal wire can be in the expanded state; and the cathode assembly is arranged below the anode assembly and comprises a polishing barrel containing a polishing solution and a cathode arranged in the polishing barrel. The electrochemical polishing device is simple and compact in structure, convenient to operate, uniform in polishing, good in polishing effect andhigh in efficiency.

The invention relates to a concrete prefabricated groove. The concrete prefabricated groove comprises a groove body. The groove body is formed through opposite lap joint of two L-shaped components in parallel. A sewer pipe is perpendicular to the bottom of the groove body and is arranged at the lap joint position of the two L-shaped components. The upper portion of the groove body is covered with a cover plate. The concrete prefabricated groove can adapt to different cable trench widths, and the research and development number of dies is reduced. The size is small, the concrete prefabricated groove is easier to tidy and stack during transportation compared with U-shaped components, and the transportation cost is effectively reduced; and assembling is flexible, and the concrete prefabricated groove can adapt to the arrangement of different lines.

An anti-blue-ray protective film comprises a transparent substrate, an anti-blue-ray layer and a hardening protective layer, wherein the anti-blue-ray layer and the hardening protective layer are sequentially laminated; the anti-blue-ray layer is prepared by coating with a coating solution and then carrying out thermal curing, the coating solution comprises the following components in parts by weight: 2-10 parts of thermosetting resin, 0.5-3 parts of nano metal oxide, 80-98 parts of an organic solvent, 0.3-1.6 parts of a dispersing agent and 0.4-1.1 parts of a curing agent; the difference between the refractive index of the nano metal oxide and the thermosetting resin is 0.1-1.3, the viscosity of the thermosetting resin is 5000 cps-10000 cps, parameters in curing are successively as follows: in the first step, the curing temperature is 40 DEG C-60 DEG C, and the curing time is 1 min-5 min; in the second step, the curing temperature is 60 DEG C-90 DEG C, and the curing time is 1 min-5 min; in the third step, the curing temperature is 90 DEG C-110 DEG C, and the curing time is 1 min-5 min; in the fourth step, the curing temperature is 110 DEG C-150 DEG C, and the curing time is 1 min-3 min. According to the invention, an internal structure in which a high refractive index is matched with a low refractive index is formed, so that the transmittance of blue ray with the wavelength of 400 nm-450 nm is less than 40%, and a good anti-blue-ray effect is achieved.

The invention provides a one-step press forming process and a manufacturing method of a CPU (Central Processing Unit) back board. The one-step press forming process is a method which makes different thicknesses by a same material for one step, and comprises the following steps of: measuring the original thickness and area of a to-be-thinned part of the material so as to obtain the original volume of the to-be-thinned part of the material; calculating the thickness and area of the to-be-thinned part of the material after treatment so as to obtain the volume of the to-be-thinned part of the material after treatment; subtracting the volume of the to-be-thinned part of the material after treatment from the original volume of the to-be-thinned part of the material so as to obtain a to-be-removed volume; and removing the to-be-removed volume from the to-be-thinned part of the material; and pressing the to-be-thinned part of the material. The one-step press forming process provided by the invention has the advantages of simplifying a process and saving cost.

The invention discloses a preparation method of a SiC/ZrO 2 protective coating. The method includes the following steps that 1, raw material pre-mixing treatment is performed, wherein 32-85 parts by mass of micrometer-grade zirconia, 0.1-0.6 part by mass of micrometer-grade molybdenum disulfide, 12-38 parts by mass of polycarbosilane precursors and 5-35 mass parts of ethanol solution are weighed and put into a vacuum ball mill tank respectively, and uniform mixing is conducted; 2, vacuum ball milling is conducted, wherein the vacuum ball mill tank is vacuumized after raw material pre-mixing treatment, and a planetary ball mill is used for wet ball milling for 2-4 hours for continuous reaction; 3, discharge treatment is conducted, wherein cooling by reducing temperature is performed after the continuous reaction of the second vacuum ball mill treatment is completed, pressure relief, discharge and drying are conducted on the vacuum ball mill tank, ethyl alcohol is removed, and the SiC/ZrO2 protective coating can be obtained. The method has the advantages of low energy consumption, high production efficiency, good product consistency and small potential safety hazards.