36results about How to "Lower working conditions" patented technology

The invention provides high-strength low-temperature-resistant steel. The steel is composed of, by mass, 2.0-7.05% of nickel, 0.02-0.1% of carbon, 0.02-0.1% of silicon, 0.60-8.00% of manganese, 0.3-0.5% of chrome, 0.05-0.6% of molybdenum, 0.02-0.3% of copper, 0.03-2.0% of aluminum, smaller than or equal to 0.010% of phosphorus, smaller than or equal to 0.002% of sulfur, 0.004-0.010% of nitrogen, 0.0005-0.002% of oxygen, 0.0005-0.005% of calcium, and the balance iron. The invention further provides the heat processing technology and application of the high-strength low-temperature-resistant steel. By the adoption of the high-strength low-temperature-resistant steel and the heat processing technology thereof, low-temperature toughness is high, structural steel used in a low-temperature environment can be manufactured, application cost is reduced, and economical applicability is high.

The invention, belonging to the field of construction engineering, relates to an anti-stripping warm mix asphalt additive agent comprising surfactant, its preparation method and application. The anti-stripping warm mix asphalt additive agent disclosed in the invention comprises polyvinyl acetal, polyacrylamide, fatty acid anhydride ester surfactant, polyoxyethylene acid ester surfactant and water. The warm mix asphalt additive agent disclosed in the invention can enhance the bonding of stone, rock flour and asphalt, so as to get the purposes of high strength and preventing stripping. The requirements of the technical characteristics of the warm mix asphalt is realized by spraying the additive agent with the content of 5-6% of the weight of the asphalt when the temperature of the asphalt reaches 120-130 DEG C, and then carrying out blending and operation as routine asphalt. The warm mix asphalt additive agent disclosed in the invention has no substances which are harmful to the human body and environment, with being environmentally friendly, and is an excellent product with energy saving and emission reduction.

The invention relates to an electrode for a discharge lamp (I) with a cylindrical shaft (12) and a tip (11) which adjoins the cylindrical shaft (12), wherein a first material region (13) forming a core is formed in the longitudinal direction (A) of the electrode (1), and the core is surrounded, at least in regions, by a second material region (14) forming a casing. The invention also relates to a discharge lamp having such an electrode and to a method for producing an electrode for a discharge lamp.

The invention discloses a construction method of a warm mix asphalt concrete pavement of a municipal road. The construction method comprises the following steps: 1, reforming and adjusting the traditional mixing equipment; 2, determining the construction temperature of a warm mix mixture; 3, mixing the mixture; 4, transporting the warm mix mixture to the construction position; 5, paving the warm mix mixture; 6, compacting the paved warm mix asphalt mixture. Compared with the prior art, the construction method has the beneficial effects that the mixing cost and production consumption of the asphalt mixture are lowered, the ageing is alleviated, the pavement performance is improved, the emissions of harmful gas and dust are reduced, the environmental pollution is lowered, and the working environment quality of a worker is improved.

The invention discloses a spectral lamp for a rubidium atomic frequency standard. A sapphire glass sheet is adhered into a glass sheet clamping opening in the top of a lamp base cover through silicone rubber. A coupling coil is closely wound on the upper part of a bulb. One end of the coupling coil is welded with a core wire of a coaxial wire, and the other end of the coupling coil is welded with the outer wall of the coaxial wire. The coaxial wire penetrates through the lamp base cover, a transition circuit board, a shielding box and a radio frequency circuit board, and is welded at the ground ends of the transition circuit board and the radio frequency circuit board. The lamp base cover is fixedly arranged on the transition circuit board through screws. Leading wires of a heating coil and a temperature sensing element are welded on the transition circuit board. The lamp base cover is fixedly arranged on the transition circuit board through the screws at the bottom of the lamp base cover. The transition circuit board is fixedly arranged on a lamp bracket through screws. The lamp bracket is fixedly arranged on the shielding box through screws. The radio frequency circuit board is fixedly arranged in the shielding box through screws. The spectral lamp is simple in structure, easy to machine, stable in performance and high in environmental adaptability, and can be directly applied to the rubidium atomic frequency standard.

The invention provides a metal mold low-pressure casting process for a cast-aluminum gearbox body of a high-speed train. The process comprises the following steps of S1, three-dimensional modeling; S2, determining of casting process parameters; S3, drawing of a cast blank three-dimensional drawing and determining of a final casting process scheme; S4, design of the modeling of a casting mold; S5, manufacturing of a metal mold low-pressure mold and an inner-cavity resin sand hot box mold; S6, pressing of inner-cavity sand cores, maze sand cores, oil return groove sand cores and oil baffle sand cores of a resin sand gearbox; S7, preheating of the whole molds; S8, adding of smelted casting alloy material into a low-pressure casting machine maintaining furnace; S9, mounting of the inner-cavity sand cores, the maze sand cores, the oil return groove sand cores and the oil baffle sand cores manufactured in S6 on a low-pressure casting machine; S10, product pouring according to the casting process parameters obtained through S2; and S11, obtaining of a final product after T6 thermal treatment on a product obtained in S10. The casting cast through the process is compact in structure, clear in contour, smooth in inner and outer surface, stable in mechanical property and good in size stability and uniformity.

The invention discloses a control device for intelligently supplying power to a circuit breaker control unit, which comprises a current transformer and an auxiliary power supply, wherein the current transformer and the auxiliary power supply provide electrical energy for an electronic controller by a power supply. The electronic controller processes a current signal detected by a signal acquirer,and an information processing unit transmits a control instruction by an execution driving unit according to a fault current signal to drive the tripping operation of a circuit breaker. The power supply comprises a main loop current detection circuit and an auxiliary power supply detection circuit which are connected with the transformer and the auxiliary power supply respectively. The output ends of the main loop current detection circuit and the auxiliary power supply detection circuit are connected with the signal input end of the information processing unit respectively. After being powered on, the power supply provides the electrical energy required by a basic protection function for the electronic controller, and provides the electrical energy required by an auxiliary protection function for the electronic controller in stages according to a current detection signal of a self-generating power supply and a detection signal indicating whether the auxiliary power supply is switchedon or not, so that the electronic controller can automatically realize switching between a low-power consumption operating mode and a high-power consumption operating mode.

The invention discloses an aluminum alloy metal mold low-pressure casting technological method for a collaborative robot arm. The method comprises the following steps of 1, three-dimensional modelingof the arm; 2, design of a casting technological scheme; 3, mold flow analysis; 4, design of a metal mold low-pressure casting mold and an arm inner chamber hot box mold; 5, manufacturing of the metalmold low-pressure casting mold and the arm inner chamber hot box mold; 6, manufacturing of an arm inner chamber film-coated sand core, and surface coating; 7, sand blasting and paint spraying of themetal mold low-pressure casting mold; 8, smelting and feeding of a metal mold low-pressure casting alloy; 9, mounting of the sand core through metal mold low-pressure casting; 10, pouring of metal mold low-pressure casting castings; and 11, heat treatment of the metal mold low-pressure casting castings. The collaborative robot arm manufactured through the method has the beneficial effects of beingsmall in weight, high in rigidity, high in inner chamber precision and attractive and delicate in outer surface.

The invention relates to a vertical reaction furnace for continuous production of carbon nanotubes with a preset catalyst. The reaction furnace comprises a heating furnace, a reaction chamber, a collecting chamber, a carbon nanotube growth plate, a growth plate support column, a growth plate push rod, and a pneumatic push rod valve, etc. The reaction chamber is located in the heating furnace, and the carbon nanotube growth plate is located at the center of the reaction chamber. The carbon nanotube growth plate and the growth plate support column are in hinged connection, and the growth plate support column is vertically fixed at the center of the collecting chamber base plate. One end of the growth plate motion push rod is in hinged connection with the carbon nanotube growth plate, and the other end is in hinged connection with the pneumatic push rod valve. The reaction furnace provided by the invention can realize continuous production of carbon nanotubes, and can effectively and fully exert the catalytic efficiency of the catalyst in a carbon nanotube deposition process. The tail gas of carbon nanotube deposition is utilized, the energy consumption for production of unit weight carbon nanotube can be reduced, the carbon nanotube production cost is lowered, and the equipment structure is simpler.

This invention is high temperature heat treatment low alloy antifriction cast steel preparation technique. It is a low energy consumption, high mechanical properties low alloy antifriction cast steel. Tiny or few elements added in the alloy batching can make heat treatment C curve shift right liquid steel qualified is added into casting mold to control solidification temperature of casting, casting is taken out from casting mold when the temperature is down to certain value and quenched in water. It is taken out from water when temperature is down below 1000C, and back fire at 00~3000C. High temperature heat treatment is removed in this invention, so a great deal of electric energy or fuel can be saved and high temperature heat treatment can be eliminated. Working condition can be improved, oxidation and burning loss of alloy material during heat treatment is avoided. Production cycle of casting is shortened, labor productivity is highly improved. metal material loss can be reduced, and environmental pollution by heat treatment is reduced.

The invention discloses a concrete matte surface treating agent and the preparation method and application thereof, the agent is prepared by neutral or alkaline solution, bond earth and water, the natural or alkaline solution is prepared by the neutralization reaction between the lemon acid solution and the carbonate solution and the pH value is 7-8.5. The preparing method comprises the following steps: preparing neutral or alkaline solution; adding bond earth and water into the solution and mixing to uniform; inputting the mixture into a distillation container for reacting, distilling and the powder preparation is prepared after crushing and sieving. And the application comprises the following procedures: preparing the mixed serum; preparing the powder preparation with water by weight and mixing; before the primary agglomerating of the surface of the concrete to be processed coating the mixed serum thereon; and finally flushing with the pressure water when the concrete has agglomerated for seven days. The treating agent of the invention has the advantages of simple producing process, low cost, convenient using of the prepared product, compendious and convenient application at the matte surface of the concrete, good treating effect and effectively settling the corresponding question existing in the matte surface treatment.

The invention discloses an automatic silicon crystal plate counting and integer packaging device. The automatic silicon crystal plate counting integer packaging device comprises a first conveyor, a first photoelectric induction switch, a second conveyor, suction cup moving devices, a second photoelectric induction switch, a distribution box, an infrared induction counter, a first lifting machine,a dragging plate moving device, a weight inductor, a packaging conveyor, a second lifting machine and triangular iron blocks. The first conveyor and the second conveyor are vertically connected, the right side of the first conveyor is connected with the first lifting machine, the suction cup moving devices are arranged on the two sides of the first conveyor, the suction cup moving devices stretchacross the second conveyor, the dragging plate moving device is arranged on the first lifting machine, the right side of the first lifting machine is connected with the packaging conveyor, the tail end of the packaging conveyor is connected with the second lifting machine, a material plate is arranged on the packaging conveyor, and the front end and the rear end of the material plate are fixedly provided with the triangular iron blocks. According to the device, cost is saved, and use is convenient.

The invention discloses a preparation method and application of acid-process cold core box resin for casting, and belongs to the technical field of casting materials. The preparation method aims at preparing the cold core box resin for casting, which is prepared by the preparation method, with the advantages of high production efficiency, energy conservation, high sand core size precision, low gasevolution, long core box service life and small deformation. A casting is smooth in surface, high in dimensional precision, small in gas evolution, non-toxic, tasteless and unique in high-temperaturecharacteristic, a sand mold core made of cold core box resin has secondary hardening characteristic during high-temperature pouring, an acid curing gas source such as acetic acid and oxalic acid is adopted, natural decomposition is achieved, non-toxicity and harmlessness are achieved, and therefore the defects of hot cracking, burrs and the like of the casting can be prevented; and the cold corebox resin self-hardening sand has low gas evolution and good collapsibility.

The invention discloses an optical undersampling frequency recovery method based on remainder matching, which summarizes the relationship among repetition frequency, the maximum value of frequency to be measured, the measurement error of a receiver and the error rate of a system by researching the characteristics of the remainder of the frequency to be measured, and designs a frequency calculation program. The algorithm has universality for the magnitude of the undersampling repetition frequency difference, not only can be applied to the small repetition frequency difference condition accurately controlled by a laboratory, but also can be applied to the large repetition frequency difference condition of a fixed-frequency light source, and has important significance for rapid measurement of a field electric field.

The invention discloses an optical under-sampling frequency recovery method based on remainder matching. By studying the characteristics of the remainder of the frequency to be measured, the relationship between the repetition frequency, the maximum value of the frequency to be measured, the receiver measurement error and the system error rate is summarized. And design the frequency calculation program. The algorithm of the present invention has universal applicability to the size of the under-sampling repetition frequency difference, not only can be applied to the situation of small repetition frequency difference accurately controlled in the laboratory, but also can be applied to the situation of large repetition frequency difference of fixed-frequency light source. The rapid measurement of field electric field is of great significance.

The invention relates to a portable mobile protection device for an abrasive wheel cutting machine. The portable mobile protection device comprises a machine frame and a protection cover. The machine frame is provided with a guide rail, a filtering net, a water tank, a limiting assembly and a grounding device. The water tank is movably connected with a poking assembly and a drainage pipe. A fireproof plate is arranged in the protection cover which is provided with a control groove. The portable mobile protection device has the advantages that the abrasive wheel cutting machine is installed on the guide rail of the machine frame and is effectively prevented from generating smoke, smog and dust through the protection cover during operation, so that the requirement for dust removal is met; noise is remarkably lowered when the abrasive wheel cutting machine operates, so that the requirement for noise reduction is met; electric spark splashing generated in the cutting process is effectively reduced and even avoided, so that the fire risk is completely eradicated; threats to safety of operators from blade breaking, alloy tool bit breaking and splashing and the like possibly occurring when the abrasive wheel cutting machine operates are effectively reduced; by the arrangement of the machine frame, the working condition of operators is improved, and labor of operators is saved.

The embodiment of the invention provides a welding thermal crack control device. The welding thermal crack control device comprises a welding gun, a preheating coil and heating equipment, wherein thewelding gun and the preheating coil are arranged at the position right above a welding seam of a workpiece to be welded, the preheating coil is arranged on one side of the welding gun, and the heatingequipment is used for controlling the preheating coil to heat the workpiece to be welded according to preset induction heating frequency, preset heating temperature and preset heating time. Accordingto the welding thermal crack control device provided by the embodiment of the invention, in the welding process, the preheating coil firstly preheats the welding seam of the workpiece to be welded, the working condition is not deteriorated, the welding is carried out by using a small current, and the welding thermal crack tendency is reduced; the temperature gradient of the whole or local part ofthe workpiece to be welded is reduced, and the production of columnar crystals with large thickness and obvious crystallization direction can be prevented and controlled beneficially; and meanwhile,the improvement of welding line energy for preventing and treating welding the thermal crack is avoided, the structure of a near seam region is not overheated, and the mechanical property of the structure of the near seam region is guaranteed.

The invention belongs to the field of food processing and relates to highly digestible sweet soup balls and a preparation method thereof. The highly digestible sweet soup balls are characterized by being prepared from components by weight as follows: 40-70 parts of glutinous rice flour, 28-35 parts of wheat starch, 7-12 parts of lotus root starch, 3-8 parts of sucrose, 60-75 parts of water, 0.15-0.25 parts of hydroxypropyl distarch phosphate starch, 0.01-0.02 parts of monoglyceride, 0.03-0.05 parts of sucrose ester, 0.1-0.25 parts of ascorbic acid and 0.05-0.2 parts of composite phosphate. A traditional technology is adopted and tightly combined with a modern production technology, and production cost can be reduced substantially. The sweet soup balls prepared with the formula are easy toform and are full, besides, frost cracking rate and water loss rate of the quick-frozen sweet soup balls are greatly reduced, time for cooking is shortened, soup obtained after cooking cannot be turbid, and the digestive rate is increased by 10.5%.

The invention discloses a spectral lamp for a rubidium atomic frequency standard. A sapphire glass sheet is adhered into a glass sheet clamping opening in the top of a lamp base cover through silicone rubber. A coupling coil is closely wound on the upper part of a bulb. One end of the coupling coil is welded with a core wire of a coaxial wire, and the other end of the coupling coil is welded with the outer wall of the coaxial wire. The coaxial wire penetrates through the lamp base cover, a transition circuit board, a shielding box and a radio frequency circuit board, and is welded at the ground ends of the transition circuit board and the radio frequency circuit board. The lamp base cover is fixedly arranged on the transition circuit board through screws. Leading wires of a heating coil and a temperature sensing element are welded on the transition circuit board. The lamp base cover is fixedly arranged on the transition circuit board through the screws at the bottom of the lamp base cover. The transition circuit board is fixedly arranged on a lamp bracket through screws. The lamp bracket is fixedly arranged on the shielding box through screws. The radio frequency circuit board is fixedly arranged in the shielding box through screws. The spectral lamp is simple in structure, easy to machine, stable in performance and high in environmental adaptability, and can be directly applied to the rubidium atomic frequency standard.

The invention discloses an atomic vapor sampling method and an atomic vapor sampling device based on electro-deposition and electro-heat. The atomic vapor sampling method based on the electro-deposition and the electro-heat is characterized in that a sample enters an electrolysis cavity; elements to be detected are deposited on heating wires under the electrolysis effect, and waste liquid is discharged; the heating wires are heated for drying the electrolysis cavity under the assistance of carrier gas and are gradually heated until high-temperature evaporation and atomization are completed; and the carrier gas loads substances to be detected and atomic vapor to the next step. The elements to be detected are elements capable of forming sediments on the surface of an electrode under the electrolysis effect. The atomic vapor sampling method and device based on the electro-deposition and electro-heat provided by the invention can be used for realizing the enrichment and separation of the substances to be detected; the sensitivity can be effectively improved, the matrix interference is reduced, and the memory effect is reduced; and the atomic vapor sampling method and device based on the electro-deposition and electro-heat provided by the invention has no need of a desolvation device, has small size and is beneficial to miniaturization and portability of the instrument.

The invention discloses a concrete matte surface treating agent and the preparation method and application thereof, the agent is prepared by neutral or alkaline solution, bond earth and water, the natural or alkaline solution is prepared by the neutralization reaction between the lemon acid solution and the carbonate solution and the pH value is 7-8.5. The preparing method comprises the followingsteps: preparing neutral or alkaline solution; adding bond earth and water into the solution and mixing to uniform; inputting the mixture into a distillation container for reacting, distilling and the powder preparation is prepared after crushing and sieving. And the application comprises the following procedures: preparing the mixed serum; preparing the powder preparation with water by weight and mixing; before the primary agglomerating of the surface of the concrete to be processed coating the mixed serum thereon; and finally flushing with the pressure water when the concrete has agglomerated for seven days. The treating agent of the invention has the advantages of simple producing process, low cost, convenient using of the prepared product, compendious and convenient application at thematte surface of the concrete, good treating effect and effectively settling the corresponding question existing in the matte surface treatment.

The invention discloses a sealing machine for marine biological food packaging, which comprises a former, a motor, a lever of a sealing and cutting part, a display screen, a rubber fixing block and a hot-melt side gear, and the former is connected with a box shell through screws. The upper part of the box shell is fixedly provided with a sealing and cutting lever, and the middle part of the box shell is provided with a vibrating plate receiving material. The upper part of the blanking box is provided with a weight sensor, the lower part of the blanking box is provided with a sealing part, and the left side of the sealing part is provided with a hot-melt edge gear, and the lower part of the box shell is connected with a motor through bolts and nuts. , The sealing machine used for marine biological food packaging is equipped with a hot-melt side gear, which can adjust its own temperature according to the sealing effect, which can greatly reduce packaging materials and labor costs. It is equipped with a weight sensor, which does not require manual operation and improves Working conditions can avoid direct contact with food by hand.

This invention is high temperature heat treatment low alloy antifriction cast steel preparation technique. It is a low energy consumption, high mechanical properties low alloy antifriction cast steel. Tiny or few elements added in the alloy batching can make heat treatment C curve shift right liquid steel qualified is added into casting mold to control solidification temperature of casting, casting is taken out from casting mold when the temperature is down to certain value and quenched in water. It is taken out from water when temperature is down below 1000C, and back fire at 00~3000C. High temperature heat treatment is removed in this invention, so a great deal of electric energy or fuel can be saved and high temperature heat treatment can be eliminated. Working condition can be improved, oxidation and burning loss of alloy material during heat treatment is avoided. Production cycle of casting is shortened, labor productivity is highly improved. metal material loss can be reduced, and environmental pollution by heat treatment is reduced.

The invention discloses an optical under-sampling multi-frequency frequency calculation method based on a remainder difference characteristic value, which is used for effectively grouping down-conversion signals with different frequencies and further realizing frequency calculation by researching the characteristics of remainder differences of frequency points to be measured. The method provided by the invention has strong universality for sampling repetition frequencies of different sizes, and has important significance for realizing rapid measurement of a multi-frequency electric field with field broadband distribution.

The invention discloses a control device for intelligently supplying power to a circuit breaker control unit, which comprises a current transformer and an auxiliary power supply, wherein the current transformer and the auxiliary power supply provide electrical energy for an electronic controller by a power supply. The electronic controller processes a current signal detected by a signal acquirer,and an information processing unit transmits a control instruction by an execution driving unit according to a fault current signal to drive the tripping operation of a circuit breaker. The power supply comprises a main loop current detection circuit and an auxiliary power supply detection circuit which are connected with the transformer and the auxiliary power supply respectively. The output ends of the main loop current detection circuit and the auxiliary power supply detection circuit are connected with the signal input end of the information processing unit respectively. After being powered on, the power supply provides the electrical energy required by a basic protection function for the electronic controller, and provides the electrical energy required by an auxiliary protection function for the electronic controller in stages according to a current detection signal of a self-generating power supply and a detection signal indicating whether the auxiliary power supply is switchedon or not, so that the electronic controller can automatically realize switching between a low-power consumption operating mode and a high-power consumption operating mode.

The invention discloses a method for preparing an acid-process cold box resin for casting and its application. The invention belongs to the technical field of casting materials. The cold box resin for casting prepared by the preparation method disclosed in the invention has high production efficiency and energy saving , the sand core has high dimensional accuracy, low gas generation, long life of the core box, small deformation, smooth surface of the casting, high dimensional accuracy and small gas generation, non-toxic and tasteless, and has unique high temperature characteristics. The sand core made of cold box resin is It has secondary hardening characteristics when pouring at high temperature. It adopts acid curing gas source, such as acetic acid, oxalic acid, etc., and it is naturally decomposed, non-toxic and harmless, so it can prevent castings from defects such as hot cracks and burrs. Cold box resin no-bake sand has relatively low Low gas generation and good collapsibility.

The invention provides high-strength low-temperature-resistant steel. The steel is composed of, by mass, 2.0-7.05% of nickel, 0.02-0.1% of carbon, 0.02-0.1% of silicon, 0.60-8.00% of manganese, 0.3-0.5% of chrome, 0.05-0.6% of molybdenum, 0.02-0.3% of copper, 0.03-2.0% of aluminum, smaller than or equal to 0.010% of phosphorus, smaller than or equal to 0.002% of sulfur, 0.004-0.010% of nitrogen, 0.0005-0.002% of oxygen, 0.0005-0.005% of calcium, and the balance iron. The invention further provides the heat processing technology and application of the high-strength low-temperature-resistant steel. By the adoption of the high-strength low-temperature-resistant steel and the heat processing technology thereof, low-temperature toughness is high, structural steel used in a low-temperature environment can be manufactured, application cost is reduced, and economical applicability is high.

This invention discloses a kind of electric four-way change valve used in air-condition air flow reversing. The valve is consisted main by a valve body, a motor, a ceramic valve core. The core has a kinetic block and a static block. The static block has high voltage interface and low voltage interface that connected to the compressor, in-house interface that connected to in-house coil pipe interface, outdoor interface that connected to outdoor coil pipe interface. The motor is driven by the motor; it has a high voltage slot and a low voltage slot. The high voltage interface is connected to the high voltage slot correspondently; the low voltage interface is connected to the low voltage slot correspondently. The in-house pipe interface and the outdoor pipe interface are connected to the high voltage slot and low voltage slot, and the in-house pipe interface and the outdoor pipe interface will change their relation to the high voltage slot and low voltage slot on the movement of the kinetic block. This invention is no leaking, and it doesn't dirty plug, oil plug, and ice plug. The reversing is stable, and the versatility is good, the range of endurance of temperature is wide. It doesn't need cooling system when install anti.