33results about How to "Strong resistance to crushing" patented technology

The invention provides a method for preparing black monodisperse polymer microspheres. The method comprises the following steps: by taking polymer seed microspheres as raw materials and oil-soluble aniline black as a black dye, dyeing the polymer seed microspheres by using a seed swelling polymerization method, thereby preparing polymer microspheres; and activating black dyes adsorbed by the black polymer microspheres through a chemical reaction so as to form an activated reaction intermediate, realizing chemical bond connection between the black dye and the polymer microspheres, thereby obtaining the black monodisperse polymer microspheres. The black monodisperse polymer microspheres prepared by the method are different from common dyed microspheres and have certain resistance to pressure, namely excellent mechanical property. Moreover, the black microspheres are smooth in surface without agglomeration, uniform in particle size and narrow in particle size distribution range and have high dispersity, and the CV value of the black microspheres is less than 3 percent.

The invention discloses a specific cutting knife-material of semiconductor material wire (6H-SiC), which comprises the following steps: 1. grinding through cyclone; grading flow; 2. grading water pretreatment; grading finely for overflow; 3. wetting to blend; dehydrating eccentrically; separating; 5. drying through microwave continuously; 6. blending dryly. The invention is compatible with flexibility of black carbofrax, which improves anti-grinding property obviously.

The invention relates to a packaging method of an MEMS sensor, which comprises the following steps: providing a multilayer circuit board, carrying out cleaning and drying, printing bonding pad for leads on the multilayer circuit board, and welding gold balls on the pads for leads; providing an MEMS sensor chip, printing a chip bonding pad on the back face of the MEMS sensor chip, and depositing multiple layers of metal films on the chip bonding pad through sputtering; inversely arranging the MEMS sensor chip on the multilayer circuit board; bonding a bonding pad for the leads and a chip bonding pad by using a hot-pressing bonding technology by taking the welding gold ball as a salient point, and filling a filler between the bonding pad for the leads and the chip bonding pad; bonding a protective cover on the front surface of the MEMS sensor chip by using an adhesive; and providing an elastic cover of which the upper surface is covered with a glass film, and adhering the elastic cover to the protective cover by adopting an adhesive to obtain the MEMS sensor. Compared with the prior art, the invention has the advantages of low production cost, easiness in batch production, good air tightness and the like.

The invention discloses a control system for safety inspection of a vehicle bottom. The control system comprises a controller for controlling signal input and output, a scanning-imaging device for scanning the vehicle bottom, a system host for controlling the scanning-imaging device and the controller, a displayer for displaying vehicle information, a sensor for judging whether a vehicle enters or exits from a detection range, a scene camera for monitoring and videoing the whole inspection process, and a vehicle identity recognizer for recognizing the vehicle identity, wherein the controller is connected with the scanning-imaging device, the system host and the sensor respectively; the scanning-imaging device is connected with the system host; and the system host is connected with the displayer, the scene camera and the vehicle identity recognizer respectively. The control system saves electric energy, prevents illegal vehicles from sneaking into, improves safety and eliminates inspection omission; and the image resolution of a vehicle bottom image reaches up to millions even hundreds of billions pixels, so that the inspection efficiency is high and the control system meets the requirements of various inspection processes.

The invention discloses a method for preparing an iron-titanium-vanadium ternary polymeric flocculant through a hydrochloric acid dissolution vanadium titano-magnetite one-step method, and belongs to the technical field of flocculant preparation. According to the method, vanadium titano-magnetite concentrate is used as a raw material, dried and ground into powder, the powder is placed in a three-neck flask reactor, hydrochloric acid is added for a leaching reaction, the reaction temperature, the reaction time, the hydrochloric acid concentration and the liquid-solid ratio are controlled, and the leaching reaction process is carried out under normal pressure under magnetic stirring. After the reaction is completed, leaching liquid in the reactor is subjected to suction filtration to obtain filtrate, the concentration of dissolved-out metal ions is measured through an inductively coupled plasma spectrum generator, sodium hydroxide with different volumes and specific concentrations is added for alkalization, and after further aging, storage in a glass container at normal temperature is conducted. The method is stable in reaction, simple to operate, easy to control and free of high temperature, the obtained inorganic polymeric flocculant is good in stability, the removal effect on organic matter is better than that of a conventional aluminum flocculant, cost is low, and the method has a certain application prospect in the area where vanadium titano-magnetite is convenient to transport.

The invention relates to a method for controlling a vehicle bottom safety inspection control system. By the method, a sensor, a scene camera and a vehicle identifier are utilized; scan imaging equipment can be started only when required, so that electric energy is saved; an inspection process is monitored and recorded, so that an inspection range is enlarged, the interfusion of illegal vehicles can be prevented, and the safety is improved; the whole inspection process is automatically finished within a short time, and a vehicle bottom is integrally imaged, so that the phenomenon of inspection leakage is prevented; and the image resolution rate of a vehicle bottom picture reaches millions and even hundreds of billions of pixels, so that the method is high in inspection efficiency and meets the requirements of various inspection processes.

The invention relates to healthcare vermicelli containing mantis shrimp heads and mantis shrimp shells and a preparing method thereof. The healthcare vermicelli comprises following raw materials by weight: 55-75% of composite starch, 5-10% of mantis shrimp enzymatic hydrolysis protein liquid, 3-5% of calcium ascorbate, 0.1-0.5% of Chinese honey locust gum, 10-15% of common bluebeard herb, 5-10% of carpesium cernuum, 1.5-3% of celery seed oil and 0.4-1.5% of a selenium salt. The raw materials are prepared into the vermicelli through a plurality of processing manners. The problem that the mantis shrimp enzymatic hydrolysis protein liquid is strong in bitter and fishy taste and cannot be adopted as a food base material is overcome. The vermicelli has higher nutritional and healthcare value and has characteristics of high eating safety, good toughness and boiling fasteness, delicious taste and better mouthfeel. Frequent easting of the vermicelli is capable of replenishing a plurality of nutrition elements essential to human bodies, regulating body immunity, strengthening tendons and bones, invigorating brain, reinforcing intelligence, delaying senescence, resisting mutagenesis, and preventing occurrence of various diseases of human bodies. Waste materials are utilized comprehensively. The vermicelli and the method have great social, ecological, environmental and economic benefit.

The invention discloses a large-diameter ultra-thin resin cutting grinding wheel. The large-diameter ultra-thin resin cutting grinding wheel comprises a reinforcing layer and a grinding layer; the reinforcing layer is glass fiber gridding cloth, the grinding layer is formed by combining abrasive material, a binding agent, padding and pigment according to the weight ratio of 90-130:10-35:3-20:0.2-3. The large-diameter ultra-thin resin cutting grinding wheel is obtained through mixing, forming and curing. The diameter of the large-diameter ultra-thin resin cutting grinding wheel ranges from 300to 500 mm, the thickness is 1.8+/-0.3 mm, the production cost is reduced, the cutting opening is small, the cut material loss is reduced, the cutting efficiency is high, and the service life is long.

The invention discloses an intumescent fireproof glue for fireproof doors and a preparation method thereof, relates to the field of fireproof materials, and comprises the following raw materials in parts: 65~75 parts of rubber, 55~65 parts of flame retardant microcapsules, liquid silicon 50~53 parts of sodium bicarbonate, 47~49 parts of expanded graphite, 40~45 parts of glycerin, 36~38 parts of spherical closed-cell expanded perlite, 30~35 parts of hypophosphite, 15~20 parts of additives and 45~ 65 servings. The invention is easy to construct, and can expand violently under flame or high temperature to form a fire-resistant and heat-insulating layer to prevent flame and smoke from spreading and achieve ideal fireproof performance.

The invention relates to the field of intelligent traffic, in particular to a rolling sensing device and a signal processing method thereof. The rolling sensing device comprises a sensing band composed of a plurality of sensors connected in parallel, a signal processing module and a micro-control unit (MCU); the sensing band, the signal processing module and the MCU are electrically connected; thesensing band processes a collected signal and sends the signal to the signal processing module; after receiving the signal, the signal processing module processes the signal and sends the signal to the MCU; and the exterior of the sensing band is provided with a protective shell covering the sensing band. According to the device, the plurality of rolling sensors are connected in parallel, so thatthe problem of low identification precision in the prior art is solved; the protective shell is arranged on the outer layer of the sensing band, so that ground mounting can be achieved, and the problem of difficulty in laying in the prior art is solved; and the laying cost is low, so that large-area laying is facilitated.

The invention specifically discloses a road crossing device of a ground cross-hole resistivity CT (Computed Tomograpphy) measurement cable. The device comprises a plurality of split elements, a plurality of jointing elements and a plurality of fixing devices, wherein the split elements are connected by virtue of the jointing elements; the fixing devices are used for fixing the split elements and the jointing elements; the cross sections of the split elements are triangular strip-type steel structures; and the inner sides of the split elements are provided with cable fixing devices. The device has the following beneficial effects: the device can be used for simultaneously measuring drilled holes on two sides after being arranged on a road surface; after measurement, the cable is taken out, the fixing devices are detached, the whole device is detached into split devices, is small in size after detachment, and convenient to carry; each connection part of the device is a movable connection which is convenient and reliable and can be easily detached and maintained; and the whole measurement device (comprising the connecting elements) is made of a rigid metal material, is strong in anti-compaction capability, and can be moved on the road conveniently.

The invention discloses a monodisperse polymer microsphere for a dry spraying machine, which takes a monodisperse polymer microsphere as a matrix, the surface of the microsphere is connected with a silane coupling agent for chemical modification, and finally, the material is subjected to atomization treatment by spray drying equipment. The microspheres are high in crosslinking degree and high in pressure resistance, so that the excellent thickness of a liquid crystal box of a liquid crystal display can be kept, and due to the fact that one end of the connected silane coupling agent contains ahydrophobic group, the hydrophilicity of the spheres is reduced, and agglomeration is effectively improved; meanwhile, due to special chemical modification, the surface of the ball body is smoother, sufficient and uniform electric quantity is guaranteed, and spraying uniformity is achieved. The residual water on the surfaces of the spheres is reduced through atomization drying, and particle aggregation in the storage process is effectively avoided.