943 results about "Metal strips" patented technology

The invention discloses a high-speed multi-photon detection system and method. The system comprises a detector and a signal processing circuit, wherein the detector is composed of a window plated with a photoelectric cathode, a micro-channel plate stack and an anode; a plurality of incident photons are converted into a plurality of photoelectrons by the photoelectric cathode, and the photoelectrons are converted into electron cloud by the micro-channel plate stack; the incident electron cloud is divided into multiple paths by three layers of staggered metal strip electrodes of the anode, and charge collection is carried out to obtain charge short pulses of each layer of electrode; the signal processing circuit converts the charge short pulses transmitted by the three layers of electrodes into digital pulse signals, obtains the centroid coordinates of the electron cloud from the digital pulse signals as the abscissa value, the ordinate value and the verification value of the incident photon position, combines the abscissa value, the ordinate value and the verification value based on the screening condition to obtain the target two-dimensional coordinates, and finally obtains the target two-dimensional coordinates. And transmitting to a terminal for imaging display. According to the invention, a plurality of synchronous photons can be detected, the overall counting rate of the detector is greatly improved, and the detection efficiency is improved.

The invention discloses deburring equipment for a metal strip of a sealing ring. The deburring equipment comprises a polishing rack; the feeding guide rail assembly is arranged on the grinding rack; the roller transmission assembly is arranged behind the feeding guide rail assembly; the roller driving assembly is arranged above the roller transmission assembly and is connected with the roller transmission assembly; the displacement driving assembly is arranged above the roller driving assembly; one end of the polishing assembly is connected with the displacement driving assembly, and the other end of the polishing assembly abuts against the strip-shaped metal material. According to the technical scheme disclosed by the invention, the strip-shaped metal material can be ground and polished, and the production efficiency is improved while the product quality is firmly guaranteed.

The application relates to the technical field of permanent magnet motors, and discloses a heat dissipation type permanent magnet motor which comprises a machine body, a cooling cover for heat dissipation of the permanent magnet motor is fixedly connected to the outside of the machine body, and a purification shell for processing flowing air is fixedly connected to the outside of the cooling cover. The heat generated by the machine body during operation can be directly conducted and dissipated to air through the heat conduction strip. The memory metal strip senses the emergency overheating of the machine body during operation, so that the bending plate moves to trigger the contact to complete the temperature sensing of the machine body. The pulp plate runs to guide the external air into the cooling channel inside the heat conduction strip to perform air cooling heat dissipation, so that the permanent magnet motor adopts the combination mode of the heat dissipation fin and the emergency air cooling heat dissipation, the heat dissipation effect of the permanent magnet motor is improved, the filter plate filters and removes dust in the flowing air, the screw rod moves to make the nozzle move to perform high-pressure air blowing on the dust filtered and gathered in the filter plate, and the air dust filtered by the air cooling heat dissipation of the permanent magnet motor is automatically cleaned.

The material sorting equipment comprises a first granularity sorting device, the first granularity sorting device is connected with a shape sorting device and a specific gravity sorting device, and the shape sorting device is connected with the first granularity sorting device; the specific gravity sorting device is connected with the second granularity sorting device, and the second granularity sorting device is connected with the first optical characteristic sorting device and the second optical characteristic sorting device. The method comprises the steps that (1) the waste assemblies enter the first granularity sorting device to be sorted; (2) the shape sorting device sorts out metal strips, and the step (1) is repeated for other substances; (3) a glass mixture and a silicon wafer mixture are sorted out by the specific gravity sorting device and enter a second granularity sorting device and a second optical characteristic sorting device respectively; 4, the silicon wafer mixture is sorted by the second granularity sorting device and enters the first optical characteristic sorting device.The device has the advantages that the recovery speed and the recovery rate of glass, silicon wafers and metal strip materials in photovoltaic module recovery are increased.

The invention belongs to the technical field of antennas, and discloses a reflection unit based on a metasurface and an array antenna thereof. Comprising a linear polarization horn antenna feed source and a metasurface reflection array. The array is composed of reflection units which are arranged periodically, and each reflection unit comprises a metal resonance layer, a dielectric substrate and a metal back plate from top to bottom. The metal resonance layer comprises a non-uniform line width structure formed by a central metal strip and two symmetrically connected arc-shaped metal arms, namely, the line width of the central metal strip is unequal to that of the arc-shaped metal arms, so that the loss of the reflection unit is effectively reduced, and coupling between amplitude and phase regulation is remarkably reduced. The reflection phase of the reflection unit is realized by adjusting the central angle corresponding to the arc-shaped arm, and the reflection amplitude is realized by adjusting the rotation angle of the whole metal resonance layer around the normal axis of the metal resonance layer. Through joint optimization of parameters and array arrangement of each unit, excellent performance of low sidelobe level, low cross polarization level and high aperture efficiency is finally realized.

The utility model relates to the technical field of nuclear fusion, and discloses an uninsulated superconducting coil which comprises a coil framework. The superconducting tape is wound on the coil framework to form a multi-turn superconducting tape winding; the metal strip is wound between turns of the superconducting strip; and a welding layer formed by a metal solder is filled between the metal belt and the superconducting belt material. The turn-to-turn resistance of the superconducting tape in the uninsulated superconducting coil can be increased through parallel winding of the metal tape and the superconducting tape, so that the time constant of the uninsulated superconducting coil in the charging and discharging process is reduced, meanwhile, a gap between the metal tape and the superconducting tape is filled with welding flux, and the metal tape and the superconducting tape are welded together through a formed welding layer. The interturn combining capacity of the non-insulation superconducting coil is enhanced, the mechanical stability of the non-insulation superconducting coil is enhanced, meanwhile, the heat capacity of the non-insulation superconducting coil can be increased and a cold conduction channel can be increased by winding and welding a metal belt between turns in parallel, so that the cold conduction effect is enhanced, and the overall performance of the non-insulation superconducting coil is improved.

This utility model discloses a spiral duct seam structure, relating to the field of ventilation duct technology. The structure includes a duct plate formed by rolling metal strip, with its seam edges connected by an interlocking structure. The interlocking structure consists of a left interlocking edge partially covering a right interlocking edge. The left interlocking edge sequentially includes a first windward section, a first double-layer pressing section, a second windward section, a first horizontal section, and a first vertical section; the right interlocking edge sequentially includes a second double-layer pressing section, a second vertical section, and a second horizontal section. The outer side of the first double-layer pressing section is pressed against the second horizontal section, the second vertical section, and the second double-layer pressing section on its upper, right, and lower sides, respectively. A reserved gap is provided between the two metal sheets of the first double-layer pressing section. By guiding and blocking dust from entering the reserved gap through the double windward sections, dust accumulation causes the gap to expand and compress the right interlocking edge, thereby adaptively enhancing the interlocking tightness and collecting dust, effectively preventing seam detachment and gas leakage, and improving ventilation quality and system safety.

The invention discloses a metal pipe fitting on-orbit winding forming simulation analysis method and device and a storage medium, and the method comprises the steps: S1, constructing a metal pipe fitting winding forming equipment finite element model, and applying constraint and load conditions at the same time; s2, according to the finite element model of the metal pipe fitting winding forming equipment, numerical simulation is conducted on the forming process of the metal pipe fitting through an explicit dynamics algorithm, and Mises stress distribution of the metal strip at different forming speeds and the length of the formed pipe fitting are obtained; and on the basis of the three-dimensional coordinates of all the nodes obtained through simulation, pipe fitting forming roundness and straightness errors are calculated respectively, and the forming feasibility of the device is verified. By adopting the technical scheme, the feasibility of a winding forming device and a simulation model can be verified, and a theoretical reference is provided for on-orbit manufacturing of the spiral locking pipe.

A filter bag edge folding metal strip cutting device comprises an unwinding device, a buffering device and a cutting device, the unwinding device is used for unwinding filter bag edge folding metal roll materials, and the cutting device is used for cutting and forming filter bag edge folding metal strips; the buffer device is arranged between the unwinding device and the cutting device and is used for buffering and reducing the conveying speed of the filter bag edge folding metal belt material; the buffering device comprises a hanging block, a lifting rope, a balancing weight and a connecting assembly. The left end and the right end of the connecting assembly are connected to the two hanging blocks respectively, one ends of the two lifting ropes are connected to the two hanging blocks respectively, and the other ends of the two lifting ropes are connected to the left end and the right end of the balancing weight respectively. According to the cutting device for the edge-folded metal strip of the filter bag, the problems that the unwinding speed of the edge-folded metal strip cutting device in the prior art cannot be adjusted while unwinding is conducted, and when the unwinding speed is larger than the cutting speed of a cutting device, the edge-folded metal strip of the filter bag is prone to being blocked and bent or folded and damaged are solved.

This invention relates to the field of cable technology and discloses a safety early warning cable with temperature sensing. The cable includes a wrapping layer containing multiple insulated power wire cores, a protective layer outside the wrapping layer, a first vibration sensing element within the protective layer, and an isolation layer between the wrapping layer and the protective layer. By incorporating a spiral metal sheath within each conductor, with thermally conductive silicone grease filling the space between the sheath's inner wall and the temperature-sensing optical fiber, rapid and direct monitoring of the conductor's core temperature is achieved. Simultaneously, heat is transferred through the conductor's copper wires in the spiral microgrooves, the thermally conductive metal strip on the surface of the insulation layer, and the thermally conductive material in the filling layer to the multimode optical fiber core in the multi-core sensing cable, forming redundant temperature measurement channels. When the temperature of a conductor is abnormal, the corresponding temperature-sensing optical fiber and the multimode optical fiber core can be cross-verified, effectively avoiding false alarms caused by single-point faults or poor local contact, significantly improving temperature measurement reliability and response speed.

According to the membrane-free electrochemical energy storage device, in the thickness direction of a partition plate, a first energy storage device and a second energy storage device are arranged on the two sides of the partition plate correspondingly and connected with the partition plate; the first energy storage device comprises a first end plate, a first sealing gasket, a first current collector, a first gas diffusion electrode, a first porous membrane, a first auxiliary electrode, a second porous membrane, a first porous electrode, a second current collector and a second sealing gasket; the second energy storage device comprises a second end plate, a third sealing gasket, a third current collector, a second gas diffusion electrode, a third porous membrane, a second auxiliary electrode, a fourth porous membrane, a second porous electrode, a fourth current collector and a fourth sealing gasket; the metal strip is connected between the first auxiliary electrode and the second auxiliary electrode. Therefore, the membrane-free electrochemical energy storage device provided by the invention can perform short-term energy storage and can also perform long-term energy storage, and the energy storage effect and the energy storage cost can be both considered.

Provided is a punching device capable of improving the production efficiency of punching.　A punching device 1A, which intermittently feeds a strip-shaped sheet 10 in the longitudinal direction thereof and sequentially feeds the strip-shaped sheet 10 into a die 73 to perform punching, includes an overlapping means (folding device 4, holding device 5) for folding a part of the strip-shaped sheet 10 to overlap another part of the strip-shaped sheet 10 before being fed into the die 73. Furthermore, it is preferable to provide an overlapping state stabilizing means (pinch roll device 6) for stabilizing the state in which part of the strip-shaped sheet 10 overlaps another part.

This utility model provides a multi-directional spotlight installation device for exhibition spaces, relating to the field of spotlight technology. It includes a track body with a through-hole at the top. Wiring blocks are installed at both ends of the track body. A conductive metal strip is installed inside the track body. Conductive copper sheets are installed on both sides of the mounting blocks. A positioning mechanism is installed inside the mounting blocks. By utilizing the positioning mechanism inside the mounting blocks, and through the cooperation between the positioning mechanisms, a telescopic spring drives the positioning blocks and plastic pads to move, making them contact and fix with the inner wall of the track body. It can automatically adapt to different track specifications, allowing for quick installation without additional tools. The operation is convenient. The elasticity of the telescopic springs can buffer vibrations, making the fixation more stable and preventing spotlight displacement. The plastic sheet also protects the inner wall of the track, reducing wear, and has good insulation, improving electrical safety.

The embodiment of the utility model provides a thermal tripping assembly and a circuit breaker. A first wire of the thermal tripping assembly comprises a first connecting end and a second connecting end. The first connecting end is electrically connected with the conductive piece. The bimetallic strip is disposed adjacent to the conductive member. The heating part of the bimetallic strip is electrically connected with the second connecting end to form a first conductive loop. One end of the first bimetallic strip is connected with the heating part, and the other end of the first bimetallic strip extends in the direction away from the heating part. The second bimetallic strip comprises a first end and a second end which are oppositely arranged. The first end is connected with the heating part. The second end is disposed adjacent to the conductive member. And the second bimetallic strip is suitable for deforming along with the temperature rise of the heating part, and the second end is suitable for being in contact with the conductive piece under the condition that the value of the current flowing through the heating part reaches a preset tripping current value, so that a second conductive loop is formed between the heating part and the conductive piece. The second bimetal strip is arranged adjacent to the first bimetal strip, and the first bimetal strip can be heated and heated under the condition that the second end is in contact with the conductive piece.

The invention discloses a thin metal strip preparation method and a thermal bimetal composite strip, and the method comprises the following steps: adopting a vacuum induction melting process to smelt all raw materials in a preset proportion to obtain alloy liquid with preset components, and pouring in a protective atmosphere to obtain an alloy ingot; the alloy cast ingot is sequentially subjected to forging, hot rolling, acid pickling and surface coping treatment, and an intermediate steel coil is obtained; the middle steel coil is subjected to multi-pass cold rolling, a strip is obtained, multi-pass cold rolling is executed through a preset deformation sequence, and at least one time of middle solution annealing treatment is conducted in the multi-pass cold rolling process; and the strip is subjected to final cold rolling and finished product solution annealing treatment, and the metal thin strip for the passive layer of the thermal bimetal composite strip is obtained. The alloy components and the purity are accurately controlled by adopting vacuum induction melting, and the corrosion resistance and the stability of thermal expansion and resistivity of the passive layer thin strip are improved by combining the multi-pass cold rolling with the preset deformation sequence and the intermediate solution annealing process.

In a manufacturing method for a rolled metal strip, the method including rolling, by a rough rolling mill 70, a cast piece cast by a continuous casting machine (CC) 12, the CC 12 is configured to be capable of selecting an endless mode in which a cast piece cast into a first thickness X is rolled by the rough rolling mill 70 without being cut and a batch mode in which the cast piece cast into a second thickness Y thicker than the first thickness X is rolled by the rough rolling mill 70 after being cut. This provides a manufacturing method for a rolled metal strip and a rolling facility that can improve the productivity of the rolled metal strip in a continuous casting facility that uses both the endless mode and the batch mode compared with conventional techniques.

The invention provides an adjustable press-fitting device and method for coating a spindle blade bearing, and relates to the technical field of press-fitting devices.The adjustable press-fitting device for coating the spindle blade bearing comprises a base, a supporting rod is fixedly connected to the upper surface of the base, and an impact seat is fixedly connected to the upper end of the supporting rod; the bottom of the impact seat is fixedly connected with an impact mechanism, the impact mechanism comprises a connecting frame, a groove is formed in the connecting frame, and a rubber cover is extruded to push a supporting rod to trigger a circuit loop composed of a pressure switch, a combined metal strip and a contact; when the indicating lamps on the two sides are turned on and the positions of the moving blocks are consistent, the bearing is horizontal and coaxial, and when the indicating lamps on the single side are turned on, it is prompted that the position of the bearing needs to be adjusted, so that the effects that the bearing is obliquely pressed and assembled, the bearing abrasion rate is reduced in follow-up equipment operation, and the service life is prolonged are achieved.

A power enhancement module comprises a circuit board frame which is composed of a circuit board frame top circuit layer, a circuit board frame substrate layer and a circuit board frame bottom circuit layer. The upper-layer circuit board is composed of an upper-layer circuit board circuit layer and an upper-layer circuit board substrate layer, and the upper-layer circuit board and the circuit board frame are welded into a whole; the circuit board further comprises two or more than two groups of MOS tubes or IGBT wafers, top surface bonding pads of the two or more than two groups of MOS tubes or IGBT wafers are welded on the circuit layer of the upper circuit board, and bottom surface bonding pads of the two or more than two groups of MOS tubes or IGBT wafers are welded on the circuit layer of the upper circuit board. And a metal strip or a metal wire is welded and connected with a corresponding bonding pad in a group of bonding pads on the circuit layer of the upper circuit board, and is located in a space enclosed by the circuit board frame and the upper circuit board. The wafer is packaged in the module by adopting the laminated circuit board, so that the system effect can be optimized, and the manufacturing cost can be reduced; and by adopting the circuit board with high heat dissipation capability, the efficiency of the power device can be improved.

The utility model discloses a slitting line cutting device, which belongs to the technical field of metal processing and comprises a frame, a first conveying component arranged on the frame, a bearing component arranged in the middle of the frame, a second conveying component arranged on one side of the frame far away from the first conveying component, and a limiting component arranged on the second conveying component. The cutting assembly is arranged above the bearing assembly, the phenomenon that in the traditional cutting process, the length error phenomenon is likely to be caused in the manual marking and cutting process can be avoided, fixed-length cutting of the metal strip is achieved, and the product consistency is improved.

The invention relates to a working roll for rolling metal products, in particular for rolling metal strips, comprising: a metal matrix; and a wear-resistant protective layer at least partially arranged on the base body, the wear-resistant protective layer being a thermally sprayed protective layer; wherein the particle size of the wear-resistant protective layer is less than or equal to 50 m, preferably less than or equal to 45 m, particularly preferably less than or equal to 30 m or less than or equal to 20 m.

The utility model discloses a blocky metal strip cutting machine, which relates to the technical field of industrial processing equipment and comprises a base, supporting legs are fixedly mounted on two sides of the top of the base at equal intervals in a linear arrangement manner, and a top seat is fixedly mounted at the tops of the supporting legs. By the adoption of the structure, a metal block to be machined is placed on the top of the bearing plate, the second motor is started, the motor drives the lead screw to rotate, the two sliding blocks connected with the lead screw are driven to slide oppositely or oppositely due to the fact that the screwing directions of threads at the two ends of the lead screw are opposite, and therefore the clamping frame moves synchronously, clamps and fixes the metal block accurately and can be flexibly matched with the metal blocks of different sizes; during strip cutting, the electric push rod is started to push the blanking knife to move downwards for cutting, the bearing plate provides stable supporting, meanwhile, the first motor is started to drive the rotating table to rotate, the metal block rotates in a reciprocating mode and cooperates with the electric push rod for blanking, automatic circulating cutting is achieved, and the machining efficiency and stability are improved.

The invention relates to a device (1) for the dielectric insulation of an object (50), in particular a hydrogen fuel cell stack, comprising a metal strip (10) for fixing the object (50), and a plurality of insulating blocks (20) arranged between the metal strip (10) and a surface of the fixed object (50) and attached at selected locations on the metal strip (10). According to the invention, the insulating blocks (20) are arranged on the metal strip (10) such that they ensure dielectric resistance only at critical surface areas of the fixed object (50). The insulating blocks (20) can be attached to the metal strip (10) by snapping or clipping them in, thus enabling easy adaptation to different design requirements and cost-effective production.

The utility model discloses a bandage type CT puncture marker, and belongs to the technical field of medical instruments. Comprising metal connecting chains on the two sides, a plurality of positioning metal strips are evenly arranged between the metal connecting chains, and the metal digital marker further comprises a connecting bandage and a plurality of metal digital markers corresponding to the positioning metal strips. According to the CT puncture marker, a traditional positioning metal frame and a hook-and-loop fastener bandage are combined, the positioning metal frame can be rapidly placed and fixed on the body surface of a patient, the position can be conveniently adjusted, and the tedious step of fixing through an adhesive tape is omitted; meanwhile, the metal digital markers are arranged on one side, so that medical staff can quickly determine the positioning points without needing to determine the positioning points by counting positioning metal strips, the problem that the positioning points are easy to confuse is solved, the operation efficiency of clinical CT puncture is improved, the design is scientific and reasonable, and the practicability is high.

The invention discloses a wide-angle-domain polarization conversion metasurface with an ultra-wideband characteristic and electronic equipment, the wide-angle-domain polarization conversion metasurface with the ultra-wideband characteristic is formed by periodically arranging a plurality of polarization conversion metasurface units, each polarization conversion metasurface unit comprises two dielectric plate layers and three metal layers, the three metal layers are arranged to be a top-layer metasurface, a middle-layer metasurface and a bottom-layer metal floor from top to bottom, the two dielectric plate layers are arranged among the three metal layers at intervals, and two metal holes are formed in the longitudinal central axis of a metal strip of the top-layer metasurface. And each metal hole penetrates through the upper-layer dielectric plate and is in short circuit with the two rectangular metal patches in the middle of the middle-layer metasurface to form a magnetic resonator. Efficient cross polarization conversion can be achieved within the ultra-wideband range of 9.79-20.62 GHz, the polarization conversion rate is always kept to be 0.9 or above within the wide angular domain of 0-42 degrees, and the ultra-wideband high-polarization-conversion-efficiency ultra-wideband antenna has the advantages of being ultra-wideband, high in polarization conversion efficiency and stable in wide angular domain performance.

The invention relates to the field of metal heat treatment equipment, in particular to an improved reference adjustment type metal strip annealing furnace mouth sealing method and device. Two sealing compression rollers which are arranged up and down are arranged at a furnace opening of the annealing furnace, the lower sealing compression roller is arranged to be of a horizontal adjusting structure with the fixed height position and the adjustable horizontal position, and the upper sealing compression roller is arranged to be of an inclined adjusting structure with the adjustable height position and the adjustable horizontal position; the position of the upper sealing compression roller and the position of the upper sealing compression roller in the horizontal direction can be adjusted. The fixed height of the lower sealing compression roller is used as an adjusting reference, and a gap between the upper sealing compression roller and the lower sealing compression roller is adjusted by adjusting the height position of the upper sealing compression roller, so that an improved reference adjusting type sealing structure is formed; and the height position of the upper sealing compression roller is adjusted according to the thickness specification of the workpiece, so that the gap between the upper sealing compression roller and the lower sealing compression roller is the minimum gap allowing the workpiece to pass through. The device has the characteristics of convenience in adjustment, good sealing effect, low use cost and the like.

The invention relates to a circuit breaker applied to the technical field of circuit breakers, and the circuit breaker comprises a shell, a switch body, a thermal tripping metal sheet, an electronic module, a notch cavity, a reflection cylinder, a root temperature measurement module and a reflection diaphragm. Even if the thermal tripping metal sheet is bent and deformed due to heating, the output end of the root temperature measurement module still keeps stable contact with the thermal tripping metal sheet, and heat is selectively reflected back to the active layer sheet and the passive layer sheet of the thermal tripping metal sheet by adjusting the vector angle of the reflection diaphragm in the reflection cylinder, namely, when the reflected heat is concentrated on the active layer sheet, the heat is effectively reflected. When reflected heat is concentrated on the passive layer sheet, the thermal tripping metal sheet is easy to bend due to heat, otherwise, when reflected heat is concentrated on the passive layer sheet, the thermal tripping metal sheet is not easy to bend due to heat, thermal deformation regulation and control of the thermal tripping metal sheet are achieved, and overload protection threshold adjustment of the circuit breaker is achieved.

The invention relates to the technical field of chemical batteries, in particular to a preparation method of a high-performance lithium primary battery positive plate. The method comprises a process of coating slurry on a metal belt to prepare a pole piece, and the metal belt is prepared by the following steps: S1, carrying out roughening treatment on the surface of a stainless steel belt; s1, the stainless steel band obtained in the step S1 is subjected to punching and drawing to be machined into a rhombic metal net; s2, the metal net obtained in the step S2 is placed in an acid solution to be cleaned, surface impurities are removed, and S3, aluminum plating is conducted on the surface of the cleaned metal net. The aluminum-plated composite net is used in the positive plate, part of manganese dioxide is embedded into an aluminum layer in the rolling process of a compression roller after slurry coating, an active matter is in closer contact with a current collecting net, and the contact resistance is further reduced. Therefore, the positive plate is high in density and low in internal resistance, and the obtained battery is high in capacity, high in energy density and high in large-current load capacity.

The present invention discloses a frequency-tunable MEMS planar resonator based on VO2, comprising: a SiO2 substrate; the SiO2 substrate being located at the bottom of the resonator; a bottom electrode being located above the SiO2 substrate; a Si3N4 double-ended fixed plate being located above the SiO2 substrate and the bottom electrode; a top electrode being located above the Si3N4 double-ended fixed plate and corresponding to the bottom electrode; a Si3N4 insulating layer being located above the Si3N4 double-ended fixed plate and the top electrode; a heating resistor being located above the Si3N4 insulating layer, with its maximum resistance region located in the middle region of the Si3N4 double-ended fixed plate; a VO2 layer being located above the Si3N4 double-ended fixed plate and the heating resistor; the heating resistor is made of Pt to increase its ability to withstand high temperatures, and the heating resistor is composed of Pt metal strips of different widths to ensure that the resistance value is maximized in the middle plate region of the Si3N4 double-ended fixed plate.

The utility model relates to a metal strip cold rough rolling on-line air cooling temperature control device in the technical field of metal strip processing, which comprises a fixed bottom block which is arranged on the outer side of the top of a metal strip conveying belt through a bolt, a guide groove is formed in the top of the fixed bottom block, and through holes are symmetrically formed in the top of the fixed bottom block; the air cooling mechanism is movably clamped to the top of the fixed bottom block, through mutual cooperation of the fixed bottom block, the air cooling mechanism and the connection limiting mechanism, the bottom end of the air cooling mechanism can be clamped into the inner side of a guide groove in the top end of the fixed bottom block, so that preliminary connection limiting is carried out, then the connection limiting mechanism is adjusted, and the air cooling mechanism and the connection limiting mechanism are connected in a clamped mode; the connecting limiting mechanism can be automatically inserted into the inner side of a through groove in the top end of the fixed bottom block under the action of gravity, so that connecting and fixing are conducted, and the air cooling mechanism can conduct air cooling temperature control treatment on the metal strip located on the inner side of the conveying belt; the metal strip can be conveyed into the cold rough rolling device through the conveying belt to be machined, and operation is convenient.

The invention provides a metal strip straightening rolling mill, and belongs to the technical field of aluminum alloy rolling mills, the aluminum alloy strip straightening rolling mill comprises: a frame assembly, the frame assembly comprises two side plates and a plurality of cross beams, the plurality of cross beams are fixedly connected to the close ends of the two side plates respectively; the rolling assembly comprises limiting sliding grooves, cambered surface sliding blocks, rolling rollers and a rotating shaft, the number of the rolling rollers, the number of the limiting sliding grooves and the number of the cambered surface sliding blocks are all two, the two limiting sliding grooves are formed in the two side plates correspondingly, and the two cambered surface sliding blocks are slidably connected into the two limiting sliding grooves correspondingly; one rolling roller is rotationally connected to the ends, close to each other, of the two cambered surface sliding blocks; by using the device, before the aluminum alloy strip is rolled, the adjusting assembly is controlled to operate, and the distance between the two rolling rollers is adjusted, so that the distance between the two rolling rollers is suitable for strips of different specifications so as to adapt to different products, and the adaptability is higher.