62results about How to "Flexible size control" patented technology

The invention relates to a synthesized multilevel structure ZSM-5 zeolite molecular sieve with intracrystalline meso pores and intercrystalline meso pores, as well as a synthetic method and an application thereof. Except micropores of the zeolite structure, the multilevel structure ZSM-5 zeolite molecular sieve comprises the intracrystalline mesoporous and intercrystalline mesoporous structure, wherein primary nanometer crystal grain size is 40-500nm, and secondary accumulated particle size is 500nm-5[mu]m. The structure greatly improves diffusion performance and the catalyst activity of the molecular sieve, reduces possibility of generation of side reaction and carbon deposit, improves carbon accommodating capability of the molecular sieve catalyst, and prolongs life of the catalyst.

The invention discloses single frame non slot rolling large size square steel method. It adopts big delivery head two-high reversing blooming mill system. Each of blank side is repeatedly made into roller pressing underside and free spread side, processed reciprocating many passes non slot rolling by the horizontal mill to form finished product. It uses critical percent of reduction control method to control the size of the single and double drum ratio in the approved range, control width to height ratio to remove rolling off square. Thus the invention can reduce pass positioning, produce the large square steel product with high quality and flexible size by using non slot rolling technique.

The invention belongs to the technical field of preparation, and particularly relates to a preparing method for CdSe@CdS core-shell structure quantum dots. The preparing method includes the steps that CdSe quantum dots are synthesized in a microemulsion system containing thiourea, a selenium source and excessive Cd2+ ions, then hydro-thermal treatment is conducted on the reaction system, a CdS layer is formed on the surface of CdSe with S2- generated by thiourea decomposition through epitaxial growth, and then the CdSe@CdS core-shell structure quantum dots are formed. A microemulsion and a hydro-thermal treatment method are combined, one-step charging and two-stage reacting are adopted to prepare the CdSe@CdS core-shell structure quantum dots which are small and uniform in size, high in crystallization degree and good in monodispersity, the particle size is easy to control, technological operation is simple, and the requirement for equipment is low.

The invention discloses a thermal processing method for suspension electron beam melting molybdenum-rhenium alloy ingot. The method obtains rod-shaped ingot by melting a molybdenum-rhenium alloy sintered bar through suspension electron beam. The high temperature rolling is carried out by the first fire, the parallel ingot is axially fed, with a rolling speed ranging from 300 to 400mm/min, the temperature is kept for 1 hour; the ingot is rolled to the set thickness through rolling for three times and heated at high temperature for the second time, the temperature is kept for 1 hour, with a rolling speed ranging from 300 to 400mm/min; the ingot is rolled to the set thickness after inverting the direction; the ingot is heated at high temperature for the third time, the temperature is kept for half an hour; the ingot is rolled to the set thickness through 3 rolling for three times and is carried for cold rolling after annealing. The thermal processing method provided by the invention reduces the dislocation movement for single sliding and the speed of the dislocation movement, controls the direction of the dislocation movement, avoids the cracking at crystal boundary owing to the accumulation of the dislocation; besides, the thermal processing method ensures cogging of the ingot but not cracking, and ensures heating processing to go on smoothly. By the thermal processing method, accepted plank stuff characterized by fine crystal particles and uniform sizes can be made, with purity over 99.99 percent.

The invention discloses a yaw control device, an executive device and a yaw system and method. The yaw control device comprises a measuring unit, a yaw controller, an electric power conversion unit and an electric executive unit, wherein the measuring unit is used for measuring current wind power parameters and current yaw parameters of a wind generating set; the yaw controller is used for obtaining a current damping control electric power value for execution of damping action, and sending a damping control instruction used for performing damping control according to the current damping control electric power value to the electric power conversion unit and the electric executive unit; the electric power conversion unit is used for responding to the damping control instruction and converting a current electric power value into the current damping control electric power value; and the electric executive unit is used for responding to the damping control instruction and sending the damping action instruction used for executing the damping action on the wind generating set according to the current damping control electric power value. According to the yaw control device, the executivedevice and the yaw system and method provided by the embodiment of the invention, the damping torque at different time points can be flexibly and precisely controlled, the wind generating set can frequently track the wind direction, accordingly, the wind energy can be better captured, and the service life of equipment is guaranteed.

The invention discloses a construction method of a graphene protecting structure, namely a preparation method of a graphene sponge/rigid foam composite structure. The method comprises the following specific steps: entirely soaking hydrophilic rigid foam into a dispersion liquid of oxidized graphene, then carrying out freeze drying to the product, and at last utilizing hydrazine steam to reduce the product. With application of the method, the graphene is added with the rigid foam skeleton or external skeleton to protect the graphene sponge. The construction method disclosed by the invention is to build the protecting structure for graphene for the first time, so as to retain the original excellent properties such as the ultrahigh specific surface area of the graphene sponge, greatly improve the mechanical properties at the same time, and obviously improve the shear resistance; meanwhile, the size of the graphene can be flexibly controlled through change of pore size of the rigid foam, so that the various application requirements are met.

The invention provides a combustion furnace structure of a biomass combustor. The combustion furnace structure is spanned at the two ends of a body through a beam, the beam is connected with the body, a cooling liquid capable of being circulated is provided inside the beam; the beam is communicated with a liquid layer on the inner wall of the furnace body to achieve a radiating effect; a ring-shaped tube is connected with the body, the cooling liquid capable of being circulated is filled inside the ring-shaped tube; the ring-shaped tube is communicated with the inner wall of the furnace body to achieve the radiating effect; meanwhile, the size of the ring-shaped tube can be flexibly designed according to the dimension of the body; besides, the beam and the ring-shaped tube can be used for supporting and placing refractory bricks, so that the refractory bricks are guaranteed to be spliced very well. Compared with the prior art, not only can the limitation of jointing with fewer refractory bricks be avoided, but also the combustion furnace structure with a certain size can be completed, so that the furnace top lid cannot be applied to a greater combustion furnace. Through the beam and the ring-shaped tube, the size of the combustion furnace structure can be flexibly controlled to adapt to combustors with different sizes.

The invention discloses a gynecologic inflammation detecting bar which comprises an extracting bar body, a first handle, a cylinder and a top cover. The extracting bar body is welded to one end of thefirst handle. A temporary storage box is arranged in the front end of the extracting bar body. A storage box is arranged at the rear end of the temporary storage box. The cylinder is movably arrangedin the first handle and the extracting bar body. The front end of the cylinder is arranged in the storage box in the extracting bar body. The rear end of the cylinder penetrates through the first handle to extend outward. The front end of the cylinder is connected with a rubber expansion block. A cotton ball is attached to the outer end of the rubber expansion block. The rubber expansion block isconnected with a nozzle through a folding telescopic rubber pipe. The front end of the extracting bar body is sleeved with the top cover. A piston is arranged in the cylinder. A connecting column isconnected with one end of the piston. The outward extending top end of the connecting column is fixedly provided with a first pull handle. By arranging the rubber expansion block and the cotton ball,detection is more convenient, rapid and precise, and the treatment quality is greatly improved.

The invention discloses a mini shower for infants, which includes a shower body, and is characterized in that: the shower body includes two parts: a nozzle and a nozzle; the nozzle and the nozzle are connected by threads The connection is realized in a manner; the internal thread of the nozzle is connected with a purification core; the purification core includes a carbon fiber layer, a ceramic particle layer and a nano-membrane; the upper end of the nozzle is threaded with a metal ring; The upper end is threadedly connected with an adjustment switch; the edge of the nozzle is covered with a bath flower ball. The present invention is simple in structure, easy to operate, small and light, and easy to control. Contact, massage and scrubbing solve the burden of insufficient manpower, purify the water source, improve the safety of water, and reduce the irritation to the skin of infants and young children.

The invention discloses an auxiliary feeding system for a gantry cutting machine. The auxiliary feeding system comprises a feeding station and a discharging station, wherein the inner side of the feeding station is fixedly mounted on a rack; a feeding roller is arranged on the outer side of the feeding station; a discharging roller is arranged between the discharging station and the rack; a feeding platform is arranged between the feeding roller and the rack, and is formed by mounting a loading plate and a cutting plate in a combined manner; both ends of the feeding platform are fixedly mounted on the feeding station via rotating shafts; a joint gap of the loading plate and the cutting plate is formed in the middle of the feeding platform; hydraulic lifting rods are arranged on both sides of the joint gap, and are respectively mounted below the loading plate and the cutting plate; a blower nozzle facing up vertically is arranged under the joint gap; a height limiting baffle is arranged above the cutting plate. According to the auxiliary feeding system, dust on the upper surface of a product can be removed conveniently, while for dust on the lower surface of the product, the feeding platform is adjusted to ensure that a certain gap is formed between the lower surface of the product and the feeding platform, and the dust on the lower surface of the product in the gap is removed via air flow, so that the operation is simple and convenient.

The invention discloses a combined-type autoclaved aerated concrete floor slab. The combined-type autoclaved aerated concrete floor slab is formed by splicing a plurality of autoclaved aerated concrete slabs, and steel bar trusses used for bearing are buried in the autoclaved aerated concrete slabs so as to ensure that the autoclaved aerated concrete slabs meet the bearing capacity of 200 kg or above per square meter. On the premise that bearing performance is met, complete overall prefabrication of the floor slab is achieved, the manufactured floor slab is low in weight, high in strength andeasy to fabricate, a steel structure frame does not need to be arranged in advance, the construction efficiency is greatly improved, and the construction cost is remarkably reduced.

According to the microfluidic switch based on the photophoresis effect, the positions of the absorptive particles are controlled through the photophoresis force borne by the absorptive particles in liquid, and the function of opening and closing a microfluidic channel is achieved. According to the optical fiber microfluid switch based on the photophoresis effect, the photophoresis force for controlling the absorptive particles is determined by heat exchange between the particles and surrounding media, and the optical fiber microfluid switch comprises a laser device, a transmission optical fiber, a microfluid laser coupling device, an optical fiber with a hole, the absorptive particles, a microfluid guide pipe and a microinjection pump. According to the invention, the photophoresis effect of the absorptive particles is utilized to achieve the light-operated microfluidic switch, the opening and closing of the microfluidic channel can be flexibly controlled on line in real time, and the microfluidic switch is simple in structure, easy to realize integration, low in cost and convenient to operate.

The invention discloses a power distribution system for optimizing the power consumption efficiency of a residential area. A first pair of guide rails includes two first guide rails arranged in parallel and at intervals. A second pair of guide rails includes two second guide rails arranged in parallel and at intervals. The second pair of guide rails moves towards or away from the first pair of guide rails. A first electrode plate is installed between the guide rails in the first pair of guide rails, and the first electrode plate includes several first sub electrode plates. The position of thefirst first sub electrode plate is fixed, and the second to last first sub electrode plates slide between the guide rails in the first pair of guide rails. A second electrode plate is installed between the guide rails in the second pair of guide rails, and the second electrode plate includes several second sub electrode plates. The position of the first second sub electrode plate is fixed, and thesecond to last second sub electrode plates slide between the guide rails in the second pair of guide rails. Each pair of first sub electrode plate and second sub electrode plate at corresponding positions moves synchronously along the lengthwise direction of the guide rails. The technical problem that reactive power compensation for the power grid of a residential area is inconvenient is solved.

The invention discloses a winding type iron core magnetically controlled saturated reactor, and belongs to a power grid automatic reactive power compensation device. The reactor comprises winding type iron cores, an alternating-current working winding, direct-current exciting windings and partial saturation windings. The iron cores include the two winding type iron cores which are adjacently placed. The alternating-current working winding is wound around the adjacent portions of the iron cores and wound on the two iron cores. The two direct-current exciting windings are connected in series and symmetrically wound on the two iron cores respectively. Four symmetrical holes in the same size are reserved in the adjacent portions of the two iron cores. The partial saturation windings penetrate through the holes to be wound on the iron cores and are used for generating partial saturation equivalent gas gaps. The adjustable reactor is simple in structure and easy to machine, the linear regulation range of the reactance value is wide, and the large overload capacity is achieved.

The invention provides a double-flash mainboard, electronic equipment applying the same and a design method of the double-flash mainboard, the double-flash mainboard comprises a programmable logic device, the mainboard further comprises a master flash and a slave flash, the master flash is provided with a first BIOS mirror image and a first BMC mirror image, and the slave flash is provided with a second BIOS mirror image and a second BMC mirror image; and the programmable logic device is used for gating of the master flash and the slave flash. According to the invention, the main flash and the slave flash are arranged on the mainboard, and each flash is provided with the BIOS mirror image and the BMC mirror image, so that the requirement of double flashes of devices on the mainboard is met, the requirement can be realized by arranging only two flashes on the mainboard, and the number of the devices on the mainboard is reduced; in addition, the gating function of the master flash and the slave flash is integrated into the programmable logic device, so that the number of devices on the mainboard is further reduced. The number of solid parts on the mainboard is reduced, the space of circuit layout is optimized, the wiring difficulty is reduced, and the placing elasticity of the parts is improved.

The invention provides an optical fiber coupling alignment structure of an optical fiber-to-optical waveguide structure, a preparation method and a method for coupling an optical fiber to an optical component, the preparation method of the optical fiber coupling alignment structure comprises the following steps: an optical fiber groove, the optical waveguide structure and an auxiliary alignment part are prepared in a substrate, the shape of the longitudinal cross section of the optical fiber groove includes a square; the alignment base surface of the auxiliary alignment part is attached to thecoupling end surface of the optical fiber, the three surfaces of the optical fiber groove are in contact with the optical fiber to be coupled, and the optical fiber to be coupled can be automaticallyaligned with the optical waveguide structure in the vertical direction and the horizontal direction, and the optical fiber groove with the square section with the side wall perpendicular to the bottom can be prepared based on a dry etching process. The preparation of the optical fiber alignment coupling structure is compatible with other processes (such as an MEMS process), and the size of the optical fiber groove can be flexibly controlled according to the size of the optical fiber. According to the invention, the optical fiber groove, the optical waveguide structure and the auxiliary alignment part can be formed based on the same photoetching process, thereby facilitating the precise alignment of the to-be-coupled optical fiber and the optical waveguide structure.