21results about How to "Solve thermal deformation" patented technology

A method for depositing a metal compound coating on the surface of a polymer base material at low temperature comprises the following steps: placing the polymer base material in an atomic layer deposition chamber, vacuumizing, and adjusting the temperature and pressure of the chamber; activating the surface of the polymer base material by using plasma; injecting a metal organic precursor into the reaction cavity in a pulse manner at the temperature lower than 300 DEG C, and forming a uniform metal compound coating through plasma enhanced atomic layer deposition; and the redundant precursor is purged through gas, and the steps are repeated until the coating with the target thickness is obtained. According to the method, the surface of the plastic base material is modified under the condition that the temperature is lower than 300 DEG C through a plasma enhanced atomic layer deposition (PEALD) technology, the metal compound coating which is uniform in thickness and controllable in component is obtained, and the requirement for improving the biocompatibility of the surface of the implant in the medical field is met.

The invention provides machine tool equipment and a machine tool cooling method. The machine tool equipment comprises a machine tool body, and a cooling channel structure is arranged on the machine tool body; the cooling equipment is provided with a medium supply unit, and a cooling medium is conveyed into the cooling channel group through the medium supply unit so as to cool the machine tool body; the cooling channel structure comprises a first channel unit and second channel units which are communicated, the first channel unit is located in the middle of the machine tool body, the second channel units are arranged on the two sides of the machine tool body, and the circulation section of the first channel unit is larger than that of the second channel units. The problem that in the prior art, thermal deformation can occur in the using process of a machine tool is solved.

The invention discloses a plate reinforcing material integrated lightweight structural material based on a composite material and a ship deck structure manufactured by using the same. The composite-material-based plate-reinforcing-material-integrated lightweight structural material according to the present invention performs the function of a plate reinforcing material substantially by forming a plurality of protrusions at certain intervals below a flat plate portion, since the protrusions are integrally manufactured within the structure without a separate bonding process such as welding or bolting, thereby improving the strength of the plate reinforcing material. Therefore, the thin plate is ultra-light, thin in thickness and excellent in structural performance, can be manufactured into a large-span structure, can be used as a thin plate structure of a ship, and can also be widely used as a building material.

The utility model provides an optical cement unloading device. Comprising an optical cement device plate, a plurality of sets of hole structures are arranged on the optical cement device plate, each set of hole structure sequentially comprises a first through hole, a second through hole and a third through hole, and the second through hole is located between the first through hole and the third through hole; the three through holes penetrate through the plate face of the optical cement device plate, the first through hole, the second through hole and the third through hole are formed in the same arc, and the second through hole is located in the arc. Glue can be poured into the through holes, and the optical cement workpiece is pasted on the surface of the optical cement device plate. According to the lower disc device, the structure of an optical cement device plate is improved, a workpiece is optically cement on the optical cement device plate, and the workpiece covers the position of a hole structure. And hot air only needs to be conveyed into the through hole from the other side of the optical cement during disc unloading, so that the local position, covering the through hole, of the workpiece is heated, disc unloading of the workpiece is facilitated, and deformation of the workpiece in the disc unloading process is avoided.

The invention provides a cutting device for aluminum alloy door and window machining, and belongs to the technical field of metal cutting equipment. The device comprises a mounting frame, and a limiting sliding groove and a reciprocating lead screw which are arranged on the mounting frame; through cooperation of the cutting and abutting device, the clamping and cleaning device, the lubricating and cooling device, the triggering device and the like, automatic cutting of the aluminum alloy door and window can be achieved, gas sprayed out of an airflow nozzle can blow away cuttings, meanwhile, the temperature of a cutting area can be reduced, a telescopic device can elastically abut against the upper side wall of the aluminum alloy door and window, and the cutting efficiency is improved. A flow guide hole with a port arranged in a big-in and small-out mode can filter lubricating liquid in a liquid storage box, the lubricating liquid can be shaken up through rotation of a cutting wheel disc, along with continuous rising of heat, a pneumatic floating plate can drive a pressure contact piece to make contact with a bearing contact piece under pushing of gas, at the moment, an electromagnetic valve is opened, and the lubricating liquid in the liquid storage box can be cut off; and the lubricating liquid can flow out from the corresponding flow dividing grooves, so that accurate cooling and lubricating treatment can be carried out on tooth spaces of the cutting wheel disc.

This invention relates to the field of pump equipment technology, specifically to a high-temperature dual-suction centrifugal pump combined flushing structure, comprising: a dual-suction centrifugal pump, connected to a sealed cavity and a drive component; a first cyclone self-cleaning heat exchanger and a second cyclone self-cleaning heat exchanger, respectively connected to both ends of the sealed cavity, a cooling water inlet, and a cooling water outlet; a first liquid storage tank and a second liquid storage tank, respectively connected to both ends of the sealed cavity, a cooling water inlet, and a cooling water outlet; and a level gauge, a pressure detection element, and a thermometer, all mounted on the first and second liquid storage tanks. By integrating a self-cleaning structure that utilizes the kinetic energy of the flushing fluid to continuously peel off polymer deposits on the pipe wall, an anti-clogging cooling flow channel with online self-sustaining capability is established, fundamentally eliminating the flushing flow rate attenuation problem caused by localized cooling and coking of aromatics, ensuring that the inner mechanical seal always receives stable and sufficient cooling and lubrication throughout the entire operating cycle.

The invention provides an assembly structure of a stator and a shell, a motor, a compressor and an assembly method thereof, and the assembly structure of the stator and the shell comprises the shell, the stator and a bolt. The stator is sleeved with the shell, the bolts are inserted between the stator and the shell in the axial direction of the stator, the number of the bolts is more than two, and the bolts are distributed in the circumferential direction of the stator; each bolt is inserted and fixed between the stator and the shell in an interference fit manner; each bolt becomes thinner along the axial direction of the stator, the insertion depth of each bolt is adjustable, and the bolts are matched to adjust the radial position of the stator in the shell by adjusting the insertion depth, so that the air gap between the stator and the rotor in the circumferential direction is more uniform, and the vibration noise is reduced.

The utility model discloses a kind of main shaft of high-speed four-roll centrifuge, including center spindle and cooling assembly, the center spindle non-bearing end end portion is provided with cooling cavity, the cooling assembly is located inside cooling cavity, the cooling assembly includes water inlet pipe and the water outlet pipe of sleeve joint in water inlet pipe outside, the water outlet pipe outer surface is provided with multiple groups of cooling groove in axial arrangement, a group of cooling groove is multiple and is arranged relative to water outlet pipe center circumference, the cooling groove one end is provided with the branch pipe of water inlet pipe through arrangement, the cooling groove other end is provided with backflow port.Cooling liquid enters cooling groove from water inlet pipe through branch pipe, after heat absorption, it is discharged reversely by backflow port into water outlet pipe, form the circulation path of water inlet pipe-cooling groove-water outlet pipe, cooling liquid is absorbed by heat exchange The heat generated by center spindle and centrifugal roller due to high-speed friction, heat radiation of molten body, avoid the thermal deformation problem generated by thermal stress in center spindle inside.

The invention provides a welding device and method for machining a precision steel pipe for a vehicle. The invention discloses a welding device and method for machining of a precise steel pipe for a vehicle. The welding device comprises an outer side box body, a sliding groove is formed in the inner surface of the outer side box body, a temperature sensor is fixedly connected to the inner surface of the outer side box body, a glass panel is arranged on the front surface of the outer side box body, and a semitransparent glass plate is arranged in the glass panel. According to the welding device and method for machining the precision steel pipe for the vehicle, through the structures such as the outer side box body, the temperature sensor and the glass panel, the requirement for the environment is effectively lowered, welding operation can be conducted in more diverse working environments, and the gas storage tank body and the guide pipe system ensure stable supply of gas and conduct local cooling; and the stability and the adaptability of the device are greatly improved.

The invention relates to the technical field of five-axis machine tools, in particular to a five-axis machine tool rotary table driving device which comprises a rotary table, a sliding base and a machine tool body, the rotary table is rotationally connected to the sliding base along the vertical rotation axis, and the sliding base is slidably connected to the machine tool body in the X-axis direction. The linear driving device has the beneficial effects that the detection precision, the driving precision and the driving stability of the linear driving device are improved through the precise alignment of the reference point of the reading head assembly and the rotation center and the cooperative matching of rigid locking and thermal extension self-adaptive release functions realized by the clamp at the tail end of the lead screw; therefore, the adaptability of the linear driving device to use scenes with high precision requirements is improved, and the requirements for high-precision machining in the high-end manufacturing fields such as aerospace and mold manufacturing are met.

This invention provides a rotating feed platform system and its sealing method for high-temperature and high-corrosion environments. The system, located in an external furnace cavity, includes a graphite plate, a rotating graphite shaft, a rotating metal shaft, an inverted "convex"-shaped double-layer jacketed furnace cover, insulation felt, a labyrinth seal device, an air curtain seal device, a magnetohydrodynamic seal, and a drive component. The furnace cover is fitted onto the rotating metal shaft to form a cavity, within which the insulation felt, labyrinth seal device, and air curtain seal device are installed sequentially from top to bottom. This invention achieves decoupling of high-temperature load-bearing capacity and precision transmission through a segmented graphite-metal shaft; it uses gradient insulation formed by the cooling of the insulation felt and the furnace cover jacket to control the temperature of the sealing area to ≤60℃; and it achieves zero intrusion of corrosive gases through a three-stage series seal composed of a labyrinth seal, a reverse inert gas curtain, and a magnetohydrodynamic seal. Therefore, this invention effectively solves the technical problems existing in the prior art of rotating feed platform systems under high-temperature and high-corrosion environments.

The invention provides a seed crystal plate detection device and method.The device is characterized in that a crucible system comprises a crucible body and a crucible cover arranged at the upper opening end of the crucible body in a covering mode, and a supporting piece is located on the upper portion of an inner cavity of the crucible body and fixedly installed on the inner side wall of the crucible body; the seed crystal plate covers the upper opening end of the crucible body; the lower end of the supporting cylinder is lapped on the supporting piece, the upper end of the supporting cylinder extends to a position close to the seed crystal plate, and a measuring gap is formed between the upper end of the supporting cylinder and the seed crystal plate; and the detection piece is graphite paper, is horizontally arranged in the measurement gap and is connected to the seed crystal plate in an attached manner. The method comprises the following steps: installing a detection piece in a measurement gap space, installing a no-load crucible system in a heat preservation chamber, and simulating a crystal growth process by adopting a process which is completely the same as that of crystal growth; and taking out the seed crystal plate after cooling, observing and measuring the deformation amount of the detection piece, and if the deformation amount does not exceed a set deformation threshold value, determining that the seed crystal plate meets the preset production requirement. The device and the method can accurately detect the deformation of the seed crystal plate.

The application provides a laser scribing method and system of a perovskite solar module, and a solar cell, and belongs to the technical field of solar cells. The method comprises the following steps: after forming various functional layers on a transparent conductive oxide layer, firstly performing P2 scribing to form a P2 channel in the various functional layers, and exposing a local area of the transparent conductive oxide layer at the bottom of the P2 channel; the functional layers comprise an electron transport layer, a perovskite active layer and a hole transport layer; forming a top electrode layer on the functional layer after the P2 scribing is completed, and filling the top electrode layer into the P2 channel and connecting with the exposed local area of the transparent conductive oxide layer; after forming the top electrode layer, under the condition that the relative positions of a P1 scribing laser beam and a P3 scribing laser beam are fixed, synchronously performing P1 scribing and P3 scribing. The application eliminates systematic alignment errors, can greatly improve the yield, improve the module efficiency, and reduce the cost.

The utility model discloses an anti-expansion slag falling pipe structure of a circulating fluidized bed boiler, and solves the problem of how to avoid cracking of a welding part of a slag falling pipe and an air distribution plate due to expansion displacement of the slag falling pipe. A slag falling pipe (6) is arranged between the slag falling pipe lower through hole (4) and the slag falling pipe upper through hole (5), an annular reinforcing hoop (10) is fixedly arranged on the outer side wall of the slag falling pipe (6) in the slag falling pipe upper through hole (5), an annular sealing box (7) is movably connected to the slag falling pipe (6) below the slag falling pipe lower through hole (4) in a sleeved mode, and a sealing ring (8) is movably connected to the slag falling pipe (6) below the annular sealing box (7) in a sleeved mode. An expansion joint (8) and an expansion joint bottom end connecting annular plate (9) are sequentially connected in a sleeved mode, the lower end of the expansion joint (8) is connected with the top end face of the expansion joint bottom end connecting annular plate (9) in a welded mode, and the expansion joint bottom end connecting annular plate (9) is connected with the outer side face of the slag falling pipe (6) in a welded mode. And the normal operation of the circulating fluidized bed boiler is ensured.

The invention provides a fluoride-free oil-proof agent, a preparation method and application in paper pulp molding manufacturing, and belongs to the field of fluoride-free oil-proof agents. The preparation method of the fluoride-free oil-proof agent comprises the following steps: preparing the modified filler, carrying out binary composite treatment, carrying out ternary composite treatment and mixing the preparation. According to the fluoride-free oil-proof agent, the preparation method and the application of the fluoride-free oil-proof agent in paper pulp molding manufacturing, the binding performance of the fluoride-free oil-proof agent and paper pulp molding slurry can be effectively improved, the oil-proof performance of a paper pulp molding product after application is improved, meanwhile, the thermal deformation problem of the paper pulp molding product is avoided, and the service life of the product is prolonged. Good physical performance and oil-proof performance can be kept in a high-temperature environment or after high-temperature food is contacted; and the application stability of the fluorine-free oil-proofing agent in the slurry is improved.

The utility model discloses a laser cladding plane processing deformation restraining device which comprises an arch-shaped platform, a cooling pipe installation groove is formed in the upper surface of the arch-shaped platform, a cooling pipe is installed in the cooling pipe installation groove, a cooling water inlet is formed in one end of the cooling pipe, a cooling water outlet is formed in the other end of the cooling pipe, and a cooling water outlet is formed in the other end of the cooling pipe. A water cooling machine body is installed on one side of the arch-shaped platform, a water pump is installed at the front end of the water cooling machine body, a controller is installed on the lower surface of the arch-shaped platform, and electric push rods are installed at the four corners of the lower portion of the arch-shaped platform. According to the deformation restraining device for laser cladding plane machining, a plane workpiece is pre-bent through the arch-shaped platform and the fixed suction cup, the bending direction is opposite to the heated deformation direction, and therefore the heated deformation force of the plane workpiece is counteracted; and meanwhile, a circulating water cooling pipe is arranged in the device and is externally connected with a water cooling machine body, and the base platform and the plane workpiece clamped on the surface of the base platform are continuously cooled in the laser cladding machining process.

The utility model belongs to the technical field of drilling rig equipment, and particularly relates to a detachable rod loading and unloading device for a water well drilling rig, which comprises a support structure, a centering disc, a tower fixing seat and a drill rod unloading mechanism, the support structure is provided with a stepped groove and a first positioning hole and is detachably connected with the water well drilling rig through the first positioning hole, and the centering disc is clamped in the stepped groove. The tower fixing seat is provided with a through hole, the support structure is detachably connected with a water well drilling rig, a drill rod unloading mechanism hydraulic oil cylinder support, an adjustable hydraulic oil cylinder and a drill rod unloading plate fork through the tower fixing seat, the hydraulic oil cylinder support is fixedly connected with the support structure, and the two ends of the adjustable hydraulic oil cylinder are hinged to the hydraulic oil cylinder support and the drill rod unloading plate fork respectively through movable pin shafts. The device has the beneficial effects that the problem of uncontrollable concentric accuracy caused by thermal deformation in an integrated welding structure is solved, and the modular production and disassembly and assembly of the device are facilitated at the same time.

The invention provides a reflector adjusting device and a moving table positioning device, and the reflector adjusting device comprises a support seat, a first flexible part, a first adjusting assembly, a second flexible part, a second adjusting assembly, and a reflector. According to the reflector adjusting device, by means of the adjusting effect of the first adjusting assembly on the first flexible part and the adjusting effect of the second adjusting assembly on the second flexible part, multi-degree-of-freedom micro and accurate adjustment of the displacement amount of the reflector in the n direction and the rotation amount of the reflector in the Rm direction is at least achieved; and the micro accurate adjustment of the distance and the angle of the reflecting mirror relative to the laser interferometer is at least realized. According to the reflector adjusting device, multi-degree-of-freedom micro-precise adjustment of the pose of the reflector can be achieved, the problems that the reflector keeps the pose under high acceleration and deceleration and thermal deformation of the reflector is caused by a laser heat source are solved, the pose accuracy of the reflector is improved, it is guaranteed that a laser interferometer does not lose light during measurement, and the measurement precision is improved. The positioning precision of the motion table is improved.

The utility model discloses stretching positioning equipment for manufacturing a motor shell, which comprises a base, a stretching driving mechanism arranged above the base, a central positioning module, a multi-stage positioning mechanism and an elastic compensation component, the multi-stage positioning mechanism and the elastic compensation component are distributed on the base in an annular array, and the base is provided with a guide rail connected with the multi-stage positioning mechanism. And through the multi-dimensional positioning and elastic compensation design, the precision and reliability of stretching machining of the motor shell are remarkably improved. A radial telescopic clamping piece of the center positioning module is matched with a stepped positioning face of the multi-stage positioning mechanism, synchronous and accurate positioning of an inner hole and an end face is achieved, and particularly, due to the adaptive design of a first positioning step face to the thickness of a flange, the problem that deviation is prone to being generated in a traditional single positioning mode is effectively solved. A spiral spring and a damper of the elastic compensation assembly are of a coaxial nested structure, the design of a compensation included angle ranging from 5 degrees to 15 degrees is combined, the tolerance of a workpiece can be compensated in a self-adaptive mode, vibration is buffered, and deformation caused by stress concentration is avoided.

This utility model relates to a positioning device for precision machining of metal castings. It includes a base plate, a support platform for supporting the metal casting, positioning elements for positioning the metal casting, a swing rod for moving the positioning elements, a turntable for swinging the swing rod, a rotating rod for rotating the turntable, and a transmission device mounted on the base plate. The support platform is mounted on the top of the base plate; both ends of the support platform have sliding openings; two sets of symmetrically arranged positioning elements are simultaneously slidably connected to the two sets of sliding openings; the turntable is arranged around the rotating rod. This invention solves the technical problem that existing positioning devices struggle to quickly adapt to the machining needs of castings of different models and sizes while ensuring machining accuracy. Furthermore, the positioning plates of existing devices often use welded or integral structures, requiring the disassembly of numerous related components when replacing the positioning plate to accommodate castings of different shapes, making maintenance and replacement extremely difficult.