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43results about How to "Dimensionally stable and reliable" patented technology

Preparation method for cuprous oxide micron/nano crystal with controllable morphology

InactiveCN102583499AGood dispersionControl growth characteristicsNanotechnologyCopper oxides/halidesMicro nanoWatch glass
The invention relates to a preparation method for cuprous oxide micron/nano crystal with controllable morphology, relating to the preparation method for the cuprous oxide micron/nano crystal. The invention mainly solves the technical problems of high cost and environmental pollution in the preparation process of the micron/nano cuprous oxide. The method comprises the following steps of: 1, dissolving copper salt into ultrapure water, pouring lactic acid, continuously stirring, regulating a pH value, cooling to the temperature of 25 DEG C, keeping constant volume, measuring the pH value, and obtaining solution A; 2, moving the solution A to a hydrothermal reaction kettle, sealing the reaction kettle, putting the hydrothermal reaction kettle into a drying oven, keeping the temperature, naturally cooling to a room temperature, centrifugally washing by using the ultrapure water, centrifugally washing by using anhydrous ethanol, transferring the reaction kettle onto watch glass, and drying the reaction kettle in the drying oven; and thus obtaining the cuprous oxide micron/nano crystal. The preparation method for the cuprous oxide micron/nano crystal with the controllable morphology has the advantage of simpleness and practicability, simple equipment operation, low raw material price, easy synthesis, less pollution to environment and high synthetic concentration, the problem of the cost of the morphology control and industrialized large-scale synthesis in the prior art is solved, and the industrial production is facilitated.
Owner:HARBIN INST OF TECH

Steering engine controller structure

The invention relates to a controller structure, in particular to a steering engine controller structure which solves the problems that an existing steering engine controller is large in boundary dimension and cannot meet the miniaturization design requirement, and even if the dimension of the existing steering engine controller is reduced to be within the design requirement range according to theexisting structure, the existing steering engine controller cannot work reliably. The controller structure comprises a control circuit board, two driving circuit boards, a controller shell, a first connector, four second connectors and an internal wire harness; the controller structure is characterized by further comprising a connecting circuit board; the control circuit board, the connecting circuit board and the two driving circuit boards are sequentially and coaxially arranged, and every two adjacent boards are connected through an installation column. Wiring holes are formed in the centers of the surfaces of the control circuit board, the connecting circuit board and the two driving circuit boards, and annular bonding pad areas coaxial with the wiring holes are arranged on the outer sides of the wiring holes; the control circuit board, the connecting circuit board, the two driving circuit boards and the internal wiring harness are positioned in the controller shell; the first connector and the four second connectors are installed on the controller shell.
Owner:XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST

Tensioning steel wire seal and processing method thereof

The present invention provides a steel wire seal, comprising a lock head and a steel wire with one end connected on the lock head. The lock head is provided with a lock cylinder hole for inserting the steel wire and a marble hole for containing the marble and a spring; the hole diameter of the marble hole is matched with the diameter of the marble; the front part of the marble hole is obliquely penetrated through the middle part of the lock cylinder hole; the size of an area of which the marble hole and the lock cylinder hole penetrate is less than the diameter of the marble. The seal is characterized in that the lock cylinder hole and the marble hole are composed by enclosing a hole wall on the lock head and the surface of an internal core; the internal core is located at the tail end between two holes and is fixedly connected with the lock head; the part where the internal core located at the tail end of the marble hole and the spring form a stop structure; the processing method comprises the steps as follows: compression molding the lock head, the parison comprising a big hole cavity, then filling with the marble and the spring and inserting in the big hole cavity by the specific internal core, and then fixedly connecting the lock head and the steel wire, thereby avoiding the secondary drilling process of the marble hole; the seal has the advantages of accurate size of eachhole, good performance and convenient process.
Owner:黄山亿利工贸集团有限公司

Positioning clamp for Macpherson suspension body and tower body welding

The invention discloses a positioning clamp for Macpherson suspension body and tower body welding. The clamp comprises a tower body positioning mechanism and a suspension body positioning mechanism which are fixed on a clamp table top. The tower body positioning mechanism is provided with a positioning and clamping unit, an auxiliary supporting unit and a horizontal sliding unit, the positioning and clamping unit and the auxiliary supporting unit are installed on the horizontal sliding unit, and the positioning and clamping unit is provided with a power source, a positioning and clamping module and a supporting and clamping module. After the power source is fixedly connected with the positioning and clamping module, the power source is connected with the supporting and clamping module through a connecting base and a guiding shaft, so that clamping and positioning of a tower body are achieved. The tower body positioning mechanism and the suspension body positioning mechanism are each provided with an angle adjusting structure, so that the angles of all the mechanisms on the X-Y plane and the X-Z plane are adjustable, accurate positioning after the tower body and a suspension body are assembled is controlled, and the opening size and the shape and position precision of a control arm mounting position after welding are achieved. By means of the positioning clamp, the first time quality of products is improved, and quality is stable and reliable.
Owner:郭兵

Device and method for machining reinforcing steel bar shaped like the Arabic number 8

The invention discloses a device and method for machining a reinforcing steel bar shaped like the Arabic number 8 and belongs to the technical field of tunnels. The device is composed of an 8 shape forming device and an arch back forming device. The 8 shape forming device is composed of a work platen, a hydraulic arm, a limiting board, a telescopic clamping board, an inner sliding 8 shape shaping die, a limiting suspension resistant clamping board, an outer sliding forming template A, an outer sliding forming template B and an 8 shape forming inner sliding die base board. The arch back forming device is mainly composed of a door frame, a hydraulic arm, a movable downward-pressing beam, an ejection head and a stamping table. The method comprises the steps that the inner sliding 8 shape shaping die is sleeved with a machined rectangular reinforcing steel bar and an 8 shape is formed through the outer sliding forming template A and the outer sliding forming template B. The machined reinforcing steel bar shaped like the Arabic number 8 is horizontally placed on the stamping table of the arch back forming device and stamped through the movable downward-pressing beam and the ejection head so that an arch back can be formed. The device for machining the reinforcing steel bar shaped like the Arabic number 8 has the advantages of being high in pass percent, high in production efficiency, good in machining quality and good in safety and reliability.
Owner:CHINA RAILWAY NO 8 ENG GRP CO LTD

Double box opening model of auxiliary valve body of ball valve and casting process

The invention provides a double box opening model of an auxiliary valve body of a ball valve. The double box opening model comprises an upper box, a lower box and a top core, the upper box and the lower box are divided from the inner side of a side flange of the auxiliary valve body, the upper box is subject to mold splitting from the inner side of an end flange, a top riser is arranged on the upper end face of the end flange, a chiller is allocated, and a side riser is arranged on the outer side of the side flange; a bottom mold filling pouring scheme is adopted; the top riser of the end flange and a solidification temperature field of the chiller are designed to be in axial symmetry, the top riser, the chiller and the upper end face of the end flange are jointly formed through the top core on the model, and the top core can move in a 360-degree manner in the axial direction; the side riser of the side flange is designed to be in a sinking and thermal center connection manner, and a bright casting and riser boundary is formed; and meanwhile, the uniform and in-order solidification temperature field is formed, coarse grain and solidification front secondary oxidation caused by local overheating of castings are avoided, and the reliability of the internal quality of the castings is guaranteed.
Owner:NINGXIA LANGSHENG PRECISION MFG TECH CO LTD

Sound barrier acoustic board installing structure

The invention discloses an acoustic board installing structure. The sound-facing surface of each acoustic board consists of a plurality of concave-convex arc-shaped structures or concave-convex trapezoidal structures which are transversely arranged at equal intervals, and two sides of the sound-facing surface of each acoustic board are fixed to supporting rib columns through expansion screws boltsby two installing blocks; each installing block is an eccentric block of a cylinder structure; an eccentric hole of a through hole structure is formed in the circle center side of the cylinder; the two installing blocks at the same side are tightly matched with and fixed to the rib columns through arc-shaped or trapezoidal vertically symmetrical inclined planes of the acoustic board; and each installing block is of a cylinder structure made of elastic materials. According to the acoustic board installing structure, the eccentric blocks made of the elastic materials are used for fixing the acoustic boards with symmetrical slope structures; the back side bonding mode is assisted; the acoustic boards can be stably and firmly fixed to the supporting rib columns; and due to the characteristicsof the eccentric blocks, the acoustic boards can be balanced and stable, so that a sound barrier can realize good self-adaptive stability in a complicated environment.
Owner:CHENGDU ZHONGHONG RAIL TRANSIT ENVIRONMENTAL PROTECTION IND

Bending forming die tool for bus roof through beam

The invention discloses a bending forming die tool for a bus roof through beam. The tool comprises an upper die and a lower die which are mutually matched for work, wherein each of the upper die and the lower die comprises a bottom plate, and two rows of opposite bolts are arranged on the bottom plate; a row of upper reinforcing plates and a row of lower reinforcing plates are welded on the bottom plates of the upper die and the lower die respectively; an upper die arc plate is welded on each of two sides of the upper reinforcing plates, each of two ends of one upper die arc plate is connected with the corresponding end of the other upper die arc plate through an upper baffle plate, and the upper die arc plates and the upper ends of the upper reinforcing plates are spliced through an upper arc plate; a lower die arc plate is welded on each of two sides of the lower reinforcing plates, each of two ends of the one lower die arc plate is connected with the corresponding end of the other lower die arc plate through a lower baffle plate, and the lower baffle plates and the upper baffle plates are oppositely arranged; the lower die arc plates and the upper ends of the lower reinforcing plates are spliced through a lower arc plate. The die tool has sufficient strength and rigidity, is simple in structure and is light; under the premise that the strength and the rigidity are guaranteed, the structure is simple and compact as far as possible, the size is small, the mass is light, and workpiece loading and unloading are facilitated.
Owner:ANHUI ANKAI AUTOMOBILE

Personalized Clothing Method Based on 3D Body Scanner

The invention discloses a personalized garment manufacturing method based on a three-dimensional human body scanner. The personalized clothing manufacturing method comprises the following steps that S1, an electronic human body model is generated, the three-dimensional human body scanner is adopted to acquire user body data, and a complete electronic human body model consistent with a customer in figure characteristic is generated; S2, a garment type is determined; S3, garment manufacturing data is generated, the electronic human body model is measured through an electronic measurement system, and the garment manufacturing data is generated according to the garment type; S4, a two-dimensional garment manufacturing drawing is generated; S5, a three-dimensional effect drawing is generated; S6, a customization effect is showed, namely an electronic garment wearing effect drawing of a garment worn on the electronic human body model is generated according to the three-dimensional garment manufacturing effect drawing, and after the user selects the electronic garment wearing effect drawing, the two-dimensional garment manufacturing drawing corresponding to the electronic garment wearing effect drawing is determined; S7, garment manufacturing is performed, namely the garment manufacturing is performed according to the two-dimensional garment manufacturing drawing determined in the step S6.
Owner:XIAN SUANIER ELECTRONICS TECH

Automobile lower lining limiting support

Disclosed is an automobile lower lining limiting support. The automobile lower lining limiting support is characterized by comprising a lower lining limiting support body (1) and a lower lining limiting support division part (2), the lower lining limiting support division part (2) is located at the right end of the lower lining limiting support body (1) and welded with the lower lining limiting support body (1), three welding flanges (3) are arranged on the lower lining limiting support division part (2), two welding flanges are arranged at the upper end of the lower lining limiting support division part (2) side by side, the other one welding flange is arranged at the lower end of the lower lining limiting support division part (2), and the length of the two welding flanges (3) arranged at the upper end of the lower lining limiting support division part (2) side by side is 27 mm. According to the automobile lower lining limiting support, due to the fact that the flanges on the two sides of the automobile lower lining limiting support division part (2) are lengthened by 10 mm, the welding length of a welding robot is increased, welding heat can be effectively diffused evenly, the welded deformation quantity is greatly reduced, the size is more easily ensured, and working efficiency is improved.
Owner:WUHAN HUIHENG IND

A sheet material winding high temperature tensile test fixture for architectural membrane materials

InactiveCN107860650BPrevent influence of tensile test resultsStretch continuous smoothMaterial strength using tensile/compressive forcesEngineeringStructural material
The invention provides a coiling type high-temperature stretching test clamp for a sheet-shaped material, relates to a stretching test clamp, and aims at solving the problem of the conventional building structure material high-temperature mechanical performance test that the true length variation in the stretching process cannot be detected and a normal-temperature stretching test clamp cannot beused normally. The coiling type high-temperature stretching test clamp for the sheet-shaped material comprises an upper clamp body, a lower clamp body and a test part, wherein the upper end of the upper clamp body and the lower end of the lower clamp body are connected to a stretching tester; the lower end of the upper clamp body is connected to the upper end of the lower clamp body through the test part. The coiling type high-temperature stretching test clamp for the sheet-shaped material is reasonable in size, simple, easy, reliable for high-temperature stretching test of the sheet-shaped material such as a building film, and capable of effectively performing high-temperature stretching test; the problem of effective clamping of the sheet-shaped material at the clamping end and the clampsize fitting can be solved; the clamp is applicable to the sheet-shaped material stretching test.
Owner:HARBIN INST OF TECH

Cutting method for copper clad aluminum busbar

The invention relates to a cutting method for a copper clad aluminum busbar, which gives comprehensive consideration to different strength characteristics of the two metals of copper and aluminum, a press-type angle of an aluminum clad aluminum busbar, press-type pressure, press-type speed, the thickness of copper outer cladding layer, the thickness of inner aluminum core and the like, achieves the fact that the copper outer cladding layer wraps the inner aluminum core full and tight at the end face press-type cutting position through a special copper clad aluminum busbar cutting device after the copper clad aluminum busbar is cut off, and meets the requirements that the copper outer cladding layer has no breakage, the end face has no exposed aluminum core and the like. Therefore, the cutting method for the copper clad aluminum busbar ensures that when surface treatment of the copper clad aluminum busbar is conducted, the problems that an aluminum layer cannot be treated with a tinning process and the aluminum layer is prone to corrosion are resolved, corrosion resistance of the copper clad aluminum busbar is improved, and electric conduction of the electric conduction is ensured to be safe and reliable. In addition, by means of the special copper clad aluminum busbar cutting device, the copper clad aluminum busbar end face is led to form a press-type sharp angle and have guiding performance so that butt-joint installation of busbar products is facilitated.
Owner:江苏睿正华鹏成套电气股份有限公司

Tensioning steel wire seal and processing method thereof

The present invention provides a steel wire seal, comprising a lock head and a steel wire with one end connected on the lock head. The lock head is provided with a lock cylinder hole for inserting the steel wire and a marble hole for containing the marble and a spring; the hole diameter of the marble hole is matched with the diameter of the marble; the front part of the marble hole is obliquely penetrated through the middle part of the lock cylinder hole; the size of an area of which the marble hole and the lock cylinder hole penetrate is less than the diameter of the marble. The seal is characterized in that the lock cylinder hole and the marble hole are composed by enclosing a hole wall on the lock head and the surface of an internal core; the internal core is located at the tail end between two holes and is fixedly connected with the lock head; the part where the internal core located at the tail end of the marble hole and the spring form a stop structure; the processing method comprises the steps as follows: compression molding the lock head, the parison comprising a big hole cavity, then filling with the marble and the spring and inserting in the big hole cavity by the specific internal core, and then fixedly connecting the lock head and the steel wire, thereby avoiding the secondary drilling process of the marble hole; the seal has the advantages of accurate size of each hole, good performance and convenient process.
Owner:黄山亿利工贸集团有限公司

Special fixture for machining the round cap of special-shaped integrated parts

The invention discloses a special machining fixture for round caps of special-shaped integrated components. The special machining fixture comprises a flat cylindrical fixture body, a positioning block, a balance bolt and a balance block. The positioning block, the balance bolt and the balance block are arranged on the upper surface of the fixture body, the positioning block and the balance block are respectively arranged on the left side and the right side of the balance bolt, a workpiece round cap accommodating station is formed between the positioning block and the balance block, the balance bolt is arranged in the middle of the upper surface of the fixture body and corresponds to a boss of a workpiece round cap, the positioning block comprises a block-shaped body, a workpiece shaft positioning hole and a seam, the workpiece shaft positioning hole is perforated through the block-shaped body in the left-right direction, the seam is perforated through the rear side surface of the workpiece shaft positioning hole and the rear side surface of the block-shaped body, a clamping screw hole which is perpendicularly perforated through the seam is formed in the block-shaped body, and a clamping bolt is arranged in the clamping screw hole. The special machining fixture has the advantages that the special machining fixture is reasonable and simple in structure, low in cost, high in clamping force, easy to maintain in follow-up procedures and applicable to large-scale production, and brings convenience for clamping operation, to-be-machined workpieces can be quickly clamped by the special machining fixture, machined workpieces are dimensionally stable and reliable, and the production cost can be effectively reduced.
Owner:上海华验精密机电科技有限公司
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