30results about How to "Accelerated quenching" patented technology

A fluid mover (1) includes a passage (3) of substantially constant cross section into which supersonic steam is injected through an annular nozzle (16) as a transport fluid to contact a working fluid, e.g. a liquid, to be treated, the passage further including a mixing chamber (3A) downstream of the steam injection where the mixture is accelerated upon the creation of a low pressure zone occasioned by the condensation of the steam, a dispersed droplet regime and a shock wave being generated downstream of the nozzle (16). A pseudo-convergent / divergent section is created and provides a flexible boundary in the absence of physical constraints to yield an improved performance by combining shear dispersion and / or disassociation with the effects of the shock wave. The fluid mover (1) may be used in a wide variety of applications for pumping, heating, mixing, disintegrating, classifying and separating among others.

The invention relates to an ohmic heating method and an ohmic heating device. Through the ohmic heating method and the ohmic heating device, the quenching or annealing of the back surface and tooth surface of a workpiece can be carried out in a roughly continuous operation period, and the high-precise quenching or annealing quality is easily obtained on the back surface or tooth surface while striving to improve the efficiencies of quenching or annealing. The ohmic heating method is characterized by comprising the following steps that a switching device is switched to a back surface side, so that one pair of first touch points contact the two ends of the heating range in the length direction of the back surface of the workpiece supported by a support device, the regulated frequency and output current for the back surface are supplied to the touch points from a power supply device, and then ohmic heating is carried out on the back surface; and after the step, the switching device is switched to a tooth surface side, so that one pair of second touch points contact the two ends of the heating range in the length direction of the tooth surface of the workpiece, the regulated frequency and output current for the tooth surface are supplied to the touch points from the power supply device, and then the ohmic heating is carried out on the tooth surface.

The invention relates to the technical field of heat treatment of metals, and especially relates to a horizontal quenching furnace; the horizontal quenching furnace has the advantages that the heating is more uniform, the operating efficiency is higher, the temperature can be conveniently adjusted, and the temperature control accuracy is high, so that the usage reliability is increased; the horizontal quenching furnace comprises a furnace body, an electric heating plate and a thermometer, a furnace chamber is arranged in the furnace body, an access opening is arranged at a left end of the furnace chamber, the access opening is communicated with the furnace chamber, and a door plate is arranged at the access opening; the horizontal quenching furnace also comprises a servo motor, a base plate, a left bracing frame, a right bracing frame, a left front threaded rod, a left rear threaded rod, a right front threaded rod, a right rear threaded rod, a left front screwed pipe, a left rear screwed pipe, a right front screwed pipe, and a right rear screwed pipe, and the gears are respectively arranged at an inner side at top and bottom of the left bracing frame as well as the inner side of the top and the bottom of the right bracing frame, a conveyor belt is arranged outside the gears, the conveyor belt passes through the outside part of the gears and is contacted with the gears; and the horizontal quenching furnace also comprises a intelligent display, two sets of thyristors, and electric connection wires.

The invention discloses a method for molding an automobile transmission gearbox gear stand through powder metallurgy. The method comprises the steps of raw material mixing, pressing, drying, sintering, quenching, tempering, finishing, rust prevention and the like. Raw materials comprise, by weight part, 100-120 parts of iron powder, 1.0-2.0 parts of graphene, 1.0-2.0 parts of nickel powder, 1.0-2.0 parts of manganese powder, 0.5-0.6 part of a lubricating agent, 0.1-0.2 part of a silane coupling agent, 3-4 parts of copper powder, 0.5-1.0 part of chromium powder, 1.0-1.5 parts of zinc powder, 0.1-0.15 part of silicon dioxide, 1-2 parts of tungsten carbide and 0.5-1.0 part of titanium powder. According to the method, the raw material formula is reasonable, the process is simple, and the production efficiency is high. The automobile transmission gearbox gear stand prepared through the method has the beneficial effects of uniform in overall density, good in strength and hardness, good in rust prevention performance and the like.

The invention provides a measurement method for concentration of bisphenol S, and relates to the technical field of chemical analysis and detection. The measurement method comprises the following steps of S1, preparing a blank solution through a sulfuric acid solution, a Fenton reagent and a fluorescent probe solution; S2, preparing multiple standard working solutions through the sulfuric acid solution, the Fenton reagent, the fluorescent probe solution and bisphenol S standard solutions in different concentrations; S3, respectively measuring optical indexes of the blank solution and multiplestandard working solutions, and building a standard curve according to the optical indexes and the concentration of the bisphenol S in the multiple standard working solutions; and S4, measuring an optical index of a to-be-measured sample, and obtaining the concentration of the bisphenol S in a to-be-measured sample according to the optical indexes of the to-be-measured sample and the standard curve. With the measurement method for the concentration of the bisphenol S, provided by the invention, the concentration of the bisphenol S can be rapidly and sensitively measured according to the structure characteristic of sulfuryl contained in the bisphenol and the oxidization characteristics of the Fenton reagent.

The invention discloses an anti-electromagnetic interference socket device assembly. An electromagnetic shielding cover body covers the socket device assembly; the electromagnetic shielding cover body which is of a sandwich structure specifically comprises two layers of permalloy plates and a layer of foamed aluminum-copper-nickel alloy sandwiched between the two layers of the permalloy plates and can realize a good shielding effect for electromagnetic waves at a low frequency band and a high frequency band; meanwhile, pollution from electromagnetic radiation of the socket device assembly to the environment is prevented, and interference from outer electromagnetic waves to the socket device assembly is also reduced; furthermore, a nanosheet super-hydrophobic structure is formed after the surface of the permalloy plate of the cover body is subjected to a hydrochloric acid treatment, so that a self-cleaning, anti-fogging, anti-icing and erosion-resisting protective effect is played, and the service life of the socket device assembly can be prolonged.

The present invention concerns a method of detection of an analyte in which a protein capable of binding the analyte and comprising a fluorescent energy label and an energy acceptor moiety capable of accepting energy emitted by the label or protein by Forster energy transfer (FRET), is exposed to incident electromagnetic energy to excite the protein or label, and the fluorescent emission of the label is measured; characterised in that the protein is encapsulated in a biocompatible, optically transparent matrix which is permeable to the analyte, and in that the protein undergoes no substantial conformational change during the method; further characterised in that the energy acceptor moiety has a more active and less active state, which is determined by the presence of analyte, and the emission from the label is indicative of the presence of analyte. A biocompatible optically transparent matrix in which a protein capable of binding an analyte is also provided.

The invention relates to the technical field of semiconductor photoelectrons, in particular to a negative feedback type single photon avalanche photodiode and a manufacturing method thereof. The negative feedback type single photon avalanche photodiode comprises a substrate, a buffer layer, an absorption layer, a gradient layer, a charge layer and a cap layer, wherein an incident light window andN electrodes are arranged below the substrate, and the N electrodes are symmetrically distributed around the incident light window; the buffer layer, the absorption layer, the gradient layer, the charge layer and the cap layer are sequentially arranged above the substrate; a P-type doped region with a stepped structure is arranged on the cap layer, and a P electrode grows on the P-type doped region; a dielectric film is arranged on the upper surface of the cap layer, a negative feedback resistor of a semi-closed convolution annular structure is arranged in the middle of the dielectric film, abonding pad is arranged on the dielectric film, one end of the negative feedback resistor is connected with the P electrode, and the other end is connected with the bonding pad. Rapid quenching and rapid recovery of single photon avalanche photodiode SPAD Geiger avalanche can be realized so that the photon detection rate of the SPAD can be enhanced, the post-pulse effect can be reduced and the photon detection function of unpredictable arrival time can be realized.

The invention discloses a basket type automatic quenching treatment system. The basket type automatic quenching treatment system comprises a quenching furnace, a quenching slot, a plurality of baskets, a post-treatment assembly and a basket transfer assembly, wherein the quenching slot is in butt joint to a discharge hole of the quenching furnace; the post-treatment assembly is arranged at one side, away from the quenching furnace, of the quenching slot; the basket transfer assembly is arranged on a position, on the top of the post-treatment assembly, in the quenching slot; the baskets are driven by the basket transfer assembly; and the baskets in the quenching slot are in butt joint to the discharge hole of the quenching furnace to receive materials. The basket type automatic quenching treatment system disclosed by the invention can effectively avoid dropping and mixing phenomena, and is high in quenching and post-treatment efficiency.

The invention discloses the preparation of a two-dimensional Cu-MOF nanosheet and its application in fluorescence detection of TNP. Copper chloride and polyvinylpyrrolidone are completely dissolved in ultrapure water, and sodium hydroxide aqueous solution is added dropwise. Add ascorbic acid aqueous solution drop by drop, centrifuge to obtain the first product, wash to obtain cuprous oxide nanocubes; disperse cuprous oxide nanocubes in ethanol solution to obtain a mixed solution; 2-aminoterephthalic acid is completely dissolved in N,N ‑dimethylformamide to obtain an organic phase solution; the mixed solution was added to the organic phase solution, left to stand, and centrifuged to obtain the second product, washed, solvent removed, and dried to obtain a two-dimensional Cu‑MOF nanosheet. The nanosheet is applied to the fluorescence detection of TNP. The nanosheet synthesized by the solvothermal method has ultra-thin thickness, directional growth and excellent crystallinity. The nanosheet fluorescent probe has good stability, is easy to store, and has good selectivity to TNP.

The invention discloses an anti-electromagnetic interference type vacuum circuit breaker. A shield with an electromagnetic shielding function covers the vacuum circuit breaker body and is of a sandwich structure, and particularly, the sandwich structure is formed by sandwiching a foamed aluminum-copper-nickel alloy layer between two permalloy layers. The anti-electromagnetic interference type vacuum circuit breaker has the advantages that low-frequency-band and high-frequency-band electromagnetic waves can be well shielded, environmental pollution caused by electromagnetic radiation of the vacuum circuit breaker is prevented, and interference of external electromagnetic waves on the vacuum circuit breaker is weakened; further, the permalloy surface of the shield is subjected to hydrochloric acid treatment to form a nanosheet super-hydrophobic structure, so that self-cleaning, antifog, anti-freezing and anticorrosive protection effects are achieved, and service life of the vacuum circuit breaker can be prolonged.

The invention discloses a building external wall with the good anti-electromagnetic radiation performance. An electromagnetic shielding material is pasted on the outer surface of the building external wall. The electromagnetic shielding material is of a sandwich structure, and specifically formed by sandwiching a layer of foamed aluminum-copper-nickel alloy between two layers of permalloy plates. The electromagnetic shielding material has good shielding effects on low-frequency-band and high-frequency-band electromagnetic waves, avoids indoor electromagnetic information leakage and reduces interference of outside electromagnetic waves on the indoor environment. Further, the surfaces of the permalloy plates of the material are subjected to hydrochloric acid treatment to form nanosheet super-hydrophobic structures, so that the self-cleaning, anti-foggy, anti-frozen and anti-corrosive protective effects are achieved, and the service life of the building external wall can be prolonged.

The invention provides a high-elasticity oil seal spring and a production technology of the spring, and relates to the field of spring machining and manufacturing. The spring comprises, by mass percent, 0.05% to 0.08% of C, 0.74% to 0.92% of Si, 1.44% to 1.83% of Mn, 17.22% to 17.52% of Cr, 10.00% to 10.86% of Ni, not larger than 0.030% of S, not larger than 0.035% of P and the balance Fe. The production technology comprises the steps of firstly, spring steel wire producing according to the raw material proportion, secondly, straightening and tailoring, thirdly, spring coiling, fourthly, heat treatment, fifthly, circle connecting, sixthly, paint spraying treatment and seventhly, drying and packaging. Through re-combination of all elements and the technology, the plasticity and toughness of the oil seal spring are effectively improved, and therefore the service life of the oil seal spring is prolonged.

The invention discloses a modular internal concave type flame retardant device. The modular internal concave type flame retardant device comprises more than one single three-dimensional flame retardant channel formed by overlapping two flame retardant pieces, flow turbulent columns are arranged on the flame retardant pieces, and the flow turbulent columns comprise windward sides and lee sides; thewindward sides of the flow turbulent columns are of an internal concave type structure, or the lee sides of the flow turbulent columns are of an internal concave type structure, or the windward sidesand the lee sides of the flow turbulent columns are of an internal concave type structure; and the flow turbulent columns at the front raw are located at front center of a gap of the two adjacent flow turbulent columns at the rear row, and the gap of the two adjacent flow turbulent columns at the rear row is smaller than the width of the flow turbulent columns at the front raw. The modular internal concave type flame retardant device has compact structure, high quenching and out-flame efficiency, stable performance, modular design and convenient maintenance.

The invention relates to an ohmic heating method and an ohmic heating device. Through the ohmic heating method and the ohmic heating device, the quenching or annealing of the back surface and tooth surface of a workpiece can be carried out in a roughly continuous operation period, and the high-precise quenching or annealing quality is easily obtained on the back surface or tooth surface while striving to improve the efficiencies of quenching or annealing. The ohmic heating method is characterized by comprising the following steps that a switching device is switched to a back surface side, so that one pair of first touch points contact the two ends of the heating range in the length direction of the back surface of the workpiece supported by a support device, the regulated frequency and output current for the back surface are supplied to the touch points from a power supply device, and then ohmic heating is carried out on the back surface; and after the step, the switching device is switched to a tooth surface side, so that one pair of second touch points contact the two ends of the heating range in the length direction of the tooth surface of the workpiece, the regulated frequency and output current for the tooth surface are supplied to the touch points from the power supply device, and then the ohmic heating is carried out on the tooth surface.

The invention discloses an electromagnetic-interference-resistant transformer. An electromagnetic shielding cover covers the outside of the transformer and is of sandwich structure, specifically, an aluminum-cooper-nickel alloy layer is sandwiched between two permalloy plates. Electromagnetic waves in low frequency range and high frequency range can be shielded well, environment pollution caused by electromagnetic radiation of the transformer is prevented, and interference to the transformer by outside electromagnetic waves is reduced; further, a super-hydrophobic structure of nano sheets is formed on the surface of each permalloy plate of the cover through hydrochloric acid treatment, so that self-cleaning, fog-proof, freezing-proof and corrosion-resistant protecting effect is realized, and service life of the transformer can be prolonged.

The invention discloses a high voltage power distribution cabinet with good shielding performance. An electromagnetic shielding cover body is attached to the surface of the cabinet body of the high voltage power distribution cabinet. The cover body has a sandwich structure, and particularly, a layer of foam aluminum-copper-nickel alloy is clamped between two layers of permalloy plates. Electromagnetic waves in a low frequency band and a high frequency band can be well shielded, electromagnetic radiation of the high voltage power distribution cabinet can be prevented from polluting the environment, and interference of external electromagnetic waves on electrical equipment inside the power distribution cabinet can be reduced; and further, after the surface of the permalloy plate of the cover body is subjected to hydrochloric acid treatment, a nanoplate super hydrophobic structure is formed, self-cleaning, anti-fog, anti-freezing and anti-corrosion protection roles can be played, and the service life of the high voltage power distribution cabinet can be prolonged.

The invention discloses a high voltage switch cabinet with good shielding performance. An electromagnetic shielding cover body is attached to the surface of the cabinet body of the high voltage switch cabinet. The cover body has a sandwich structure, and particularly, a layer of foam aluminum-copper-nickel alloy is clamped between two layers of permalloy plates. Electromagnetic waves in a low frequency band and a high frequency band can be well shielded, electromagnetic radiation of the high voltage switch cabinet can be prevented from polluting the environment, and interference of external electromagnetic waves on electrical equipment inside the switch cabinet can be reduced; and further, after the surface of the permalloy plate of the cover body is subjected to hydrochloric acid treatment, a nanoplate super hydrophobic structure is formed, self-cleaning, anti-fog, anti-freezing and anti-corrosion protection roles can be played, and the service life of the high voltage switch cabinet can be prolonged.

A quench protection arrangement for a superconducting magnet is disclosed. The arrangement comprises: a superconducting magnet comprising a plurality of magnet sections; a plurality of varistors, wherein each of the plurality of varistors is electrically connected in parallel across a respective one of the plurality of magnet sections; and a heater arrangement electrically connected to the plurality of varistors and configured to apply heat to each of the plurality of magnet sections in response to a change in a voltage across any one or more of the plurality of varistors. A method of protecting a superconducting magnet is also disclosed.

The invention discloses an electric power conversion device resistant to electromagnetic interference. The electric power conversion device is covered with a cover for electromagnetic shielding, the cover adopts a sandwich structure, specifically, a layer of foamed aluminum-copper-nickel alloy is sandwiched between two layers of permalloy plates, electromagnetic waves at low and high bands can be well shielded, meanwhile, pollution caused by electromagnetic radiation of the electric power conversion device to the environment is prevented, and interference of external electromagnetic waves to the electric power conversion device is reduced; further, super-hydrophobic structures of nanosheets are formed on surfaces of the permalloy plates of the cover through hydrochloric acid treatment, self-cleaning, anti-fog, anti-freezing and corrosion-resistant protection roles are played, and the service life of the electric power conversion device can be prolonged.

The invention discloses an ecological building with good anti-electromagnetic radiation performance. An electromagnetic shielding material is pasted on the outer surface of the ecological building. The electromagnetic shielding material is of a sandwich structure, and specifically formed by sandwiching a layer of foamed aluminum-copper-nickel alloy between two layers of permalloy plates. The electromagnetic shielding material has good shielding effects on low-frequency-band and high-frequency-band electromagnetic waves, avoids indoor electromagnetic information leakage and reduces interference of outside electromagnetic waves on the indoor environment. Further, the surfaces of the permalloy plates of the material are subjected to hydrochloric acid treatment to form nanosheet super-hydrophobic structures, so that the self-cleaning, anti-foggy, anti-frozen and anti-corrosive protective effects are achieved, and the service life of the ecological building can be prolonged.

The invention belongs to the technical field of powder metallurgy, and particularly relates to a process for preparing a powder metallurgy material. The process comprises the following specific steps that S1, a rotating shaft is rotated through a large servo motor, and when the rotating shaft rotates, a circular plate and a stirrer are driven to rotate, so that the rotating circular plate moves a smelting box body to a position below a feeding hole, and a plurality of groups of materials are correspondingly put into a crucible; and S2, when the materials are put into the smelting box body, the materials in the crucible are molten through a first induction coil and a first magnet yoke until the materials in the crucible are changed into liquid, so that the different materials are separately molten, and after the materials are changed into the liquid, a rotating plate on a rotating shaft is rotated through a small servo motor. According to the process, alloy particles are prepared through a granulation structure, so that the alloy has the effect of being small in size, the rolling efficiency can be improved, and the quenching and tempering efficiency can be improved.

The invention discloses an electrical equipment inspection system with good anti-electromagnetic radiation performance.The electrical equipment inspection system is covered with an electromagnetic shielding cover body which is of a sandwich structure, and particularly, a layer of foamed aluminum-copper-nickel alloy is clamped between two permalloy plates; by means of the cover body, a good shielding effect on low-frequency section and high-frequency section electromagnetic waves can be achieved, pollution of electromagnetic radiation of the electrical equipment inspection system to the environment is prevented, and interference of external electromagnetic waves to the electrical equipment inspection system is reduced; furthermore, the surface of each permalloy plate of the cover body is treated with hydrochloric acid, nanosheet super-hydrophobic structures are formed, the self-cleaning, anti-fog, anti-freezing and anti-corrosion protection effects are achieved, and the service life of the electrical equipment inspection system can be prolonged.

The invention discloses a flame retardant piece for a modular internal concave type anti-explosion valve. The flame retardant piece is in a round ring shape, more than one flow turbulent columns are arranged on the flame retardant piece, and the flow turbulent columns comprise windward sides and lee sides; the windward sides of the flow turbulent columns are of an internal concave type structure,or the lee sides of the flow turbulent columns are of an internal concave type structure, or the windward sides and the lee sides of the flow turbulent columns are of an internal concave type structure; the flow turbulent columns at the front raw are located at front center of a gap of the two adjacent flow turbulent columns at the rear row, and the gap of the two adjacent flow turbulent columns at the rear row is smaller than the width of the flow turbulent columns at the front raw; and four installation holes are formed in the center of the flame retardant piece. The flame retardant piece for the modular internal concave type anti-explosion valve has the characteristics of compact structure, high heat transmission efficiency, high flame quenching speed, stable performance, modular designand convenient maintenance.

The invention discloses an indented flame-retardance anti-explosion valve. The indented flame-retardance anti-explosion valve comprises a valve cover, a valve disc, a valve base, a conical spring, a sealing ring, flame retarding pieces, an inner flame retarding ring, an outer flame retarding ring and a bolt; the inner flame retarding ring and the outer flame retarding ring are mounted between thevalve cover and the valve base; more than one annular flame retarding pieces are mounted between the inner flame retarding ring and the outer flame retarding ring; multiple turbulent flow columns aremounted on the annular flame retarding pieces; the turbulent flow columns comprise windward surfaces and leesides; the windward surfaces of the turbulent flow columns are of indented structure, or theleesides of the turbulent flow columns are of indented structures, or the windward surfaces and the leesides of the turbulent flow columns are both of indented structures; the turbulent flow columnson the previous rows are positioned in the front centers of gaps between two adjacent turbulent flow columns on later rows; and the gaps between two adjacent turbulent flow columns on the later rows are smaller than the widths of the turbulent flow columns on the previous rows. The indented flame-retardance anti-explosion valve has the characteristics of compact structure, high heat transfer efficiency, high flame quenching speed, stable performances, modular design and convenience to maintain.

The present invention discloses an anti-electromagnetic interference variable frequency transformer control system. An electromagnetic shielding cover body covers the variable frequency transformer control system, the cover body is a sandwich structure, and the sandwich structure is that: a layer of foamed aluminum-copper-nickel alloy is arranged between two layers of permalloy plates, so that the cover body with the sandwich structure is able to shield low-frequency stage and high-frequency stage electromagnetic waves, prevent the environment from pollution caused by electromagnetic radiation of the variable frequency transformer control system and reduce the interference of external electromagnetic waves in the variable frequency transformer control system; and moreover, the surfaces of the permalloy plates of the cover body forms a nanosheet super-hydrophobic structure after being processed by hydrochloric acid, so that the self-cleaning, anti-fog, anti-icing and erosion-resisting protection effects are realized, and the service life of the variable frequency transformer control system is prolonged.

According to the organic light-emitting compound and the self-light-emitting display device provided by the invention, holes and electrons injected from a first electrode and a second electrode are compounded in an emission layer, and light is emitted from a light-emitting material including the organic compound in the emission layer for display. By selecting a specific heterocyclic ring combination, the obtained organic light-emitting compound improves the electron transmission efficiency after being applied to an electron transmission layer of the organic electroluminescent device, and an ytterbium ion modified tin dioxide film is attached to the electron transmission layer, and an Ir (Me-ppy) 3 light-emitting doping material is added, so that the electron transmission capability is greatly improved, and the organic electroluminescent device has the advantages of high light-emitting efficiency, high light-emitting efficiency and the like. Holes and electrons in the device are balanced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The present invention discloses an anti-electromagnetic leakage quick-charge station. An electromagnetic shielding cover body with a sandwich structure is pasted on the surface of the cabinet body of the quick-charge station, the sandwich structure of the electromagnetic shielding cover body is that: two one layer of foamed aluminum-copper-nickel alloy is arranged between two layers of permalloy plates, and the electromagnetic shielding cover body is able to shield the electromagnetic waves of low-frequency stages and high-frequency stages, prevent the environment from pollution caused by electromagnetic radiation of the quick-charge station and reduce the interferences of external electromagnetic waves to electrical devices in the quick-charge station; and moreover, a nanosheet super-hydrophobic structure is formed on the permalloy plates surface of the cover body through the hydrochloric acid processing so as to have self-cleaning, anti-fog, anti-icing and anti-caustic protection effects, therefore the service life of the quick-charge station is prolonged.