30results about How to "No sticking problems" patented technology

The invention provides a method for preparing artificial rutile. The method comprises the following steps: titanium concentrate is subjected to oxidizing roasting and reducing roasting for removing impurities in oxidizing roasting products; and the products of which the impurities are removed are calcined, wherein the oxidizing roasting is performed in the presence of oxidizing gas, the reducing roasting is performed in the presence of reducing gas, and the oxidizing roasting and the reducing roasting are performed in a fluidized bed reactor. By adoption of the method, the high-grade artificial rutile can be prepared by adopting coarse fraction titanium concentrate as a raw material and can also be prepared by adopting micron-sized fraction titanium concentrate as the raw material.

The invention discloses a graphite-oxide composite solid lubricant for a hot-rolled seamless steel pipe and a preparation method thereof. The composite solid lubricant is mainly prepared by taking graphite, boric acid, serpentine, potassium titanate crystal whiskers and mica as main raw material and soluble silicate as adhesive agent by sufficiently stirring and mixing. The composite solid lubricant provided by the invention has high load-carrying capability, good frictional wear reduction performance and long wearing life, and overcomes the following frequently occurring problems of single-graphite solid lubricant: the vibration and noise are large, and the core rod is easy to adhere. During the application process, no noise is detected, the vibration of a rolling mill is small, the steel pipes and the core rods do not adhere, and the rod wrap accident is avoided. In addition, by using the composite solid lubricant, the steel pipe has smooth surface and is suitable for industrial production.

The invention discloses a road occupation information determination method and device, belongs to the field of computer vision, and can be used for auxiliary driving and automatic driving. The method comprises the steps that a first image is acquired, a first region of interest (ROI) is determined according to the first image, and the first ROI comprises at least one construction area marker; obtaining a first binary image of the ROI; performing edge enhancement processing on the at least one construction area marker in the first binary image to obtain a second binary image; obtaining a junction point set of the at least one construction area marker and the road surface according to the second binary image; and determining road occupation information of the at least one construction area marker according to the junction point set of the at least one construction area marker and the road surface, and sending the road occupation information. According to the method, the accuracy of determining the road occupation information of the construction area markers is improved, so that the decision-making accuracy of the vehicle in auxiliary driving and automatic driving is improved.

The invention discloses carrageenan and a preparation method thereof. The carrageenan is prepared by carrying out alkali treatment on seaweed, washing, boiling glue, filtering, salting out precipitate, carrying out filter pressing, drying and crushing; in the steps of cleaning, carrying out alkali treatment, washing and boiling glue of the seaweed, the prevention step of avoiding the seaweed being wound on a stirring shaft and going bad is also performed. The prevention step refers to using an overload regulation mechanism to determine the amount of the seaweed on the stirring shaft; when too much seaweed is accumulated, a cutting mechanism is automatically started for cleaning the seaweed on the screw type stirring shaft, so that the seaweed is prevented from going bad, and the high quality of the carrageenan is guaranteed.

The invention relates to double-layer bletilla striata dressing, and belongs to the technical field of biological medicines. The double-layer bletilla striata dressing is composed of a surface layer and a dressing layer, wherein the surface layer is composed of a hemostatic material poorly soluble or insoluble in water, the dressing layer is composed of a bletilla striata porous material having good biocompatibility and being easily soluble in water, for the structural design of interpenetrating network connection between the surface layer and the dressing layer, the integrated forming methodis adopted for realizing physical embedding, and a freeze-drying method is adopted for obtaining a lower dressing layer. The design has the advantages that structure is reasonable, the combination isfirm, the realization is easy, due to the poorly soluble surface layer, the problems that the dressing is difficult to take for use, easily has adhesion, has difficulty in applying, and is large in waste, are solved, due to the porous structure of the easily soluble dressing layer, the dressing rapidly dissolves for forming a protection film, thus the hemostasis efficacy is realized, and the optimal environment for wound healing is created. The dressing is integrally composed of the degradable and absorbable material, and is suitable for being applied to the fields of functional dressing and tissue engineering.

The invention discloses a glassware coated with a non-sticky coating layer. The glassware coated with a non-sticky coating layer comprises a glass base body; the glass base body possesses an internalsurface; the internal surface is coated with the non-sticky coating layer; the non-sticky coating layer and the internal surface of the glass base body are connected through a binding layer; the non-sticky coating layer comprises a bottom layer and a surface layer; and preferably, the glass base body is prepared from high borosilicate glass. The invention also discloses preparation technology of the glassware. The preparation technology comprises steps of glassware internal surface pre-treatment, binding layer spraying coating, bottom layer spraying coating, surface layer spraying coating, andsintering, so that a finished product is obtained at last. According to the preparation technology, glass surface sand-blast treatment is avoided, and coating of the binding layer is adopted, the entire effect is improved, the non-sticky coating layer possesses excellent combination force with the glass base body, the glassware surface is not sticky, is convenient to clean, possesses corrosion resistance and high temperature resistance, and is long in service life.

The invention relates to a filtering check valve and a side block with the filtering check valve. The filtering check valve is used on a spray gun for spraying rapid solidification materials such as polyurethane foam and polyurea. The invention aims to solve the problem that the side block is difficult to disassemble and easy to damage. In order to achieve the purpose, a side sealing box and a filtering check valve in the side block are each provided with an O-shaped ring which is matched with a side block shell in a sealing mode, the installation positions of the O-shaped rings are closer to fluid than threads, and therefore the fluid cannot make contact with the threads at the fixing positions of the side sealing box, the filtering check valve and the side block shell. Therefore, the problem of thread adhesion caused by crystallization and solidification of components such as resin or isocyanate at the thread is solved, so that the thread is very labor-saving to disassemble, and the thread is not damaged.

The invention discloses a full-width manufacturing method of a diamond picture, and aims to provide the full-width manufacturing method of the diamond picture, and the full-width manufacturing method not only can greatly reduce gaps among diamonds on the diamond picture and enable the diamonds on the diamond picture to be densely arranged according to requirements so as to improve the picture effect of the diamond picture, but also can solve the problem of sticking of the diamonds during manufacturing of the diamond picture. The method comprises the following steps that A, diamond screening through a diamond screening machine, wherein diamond screening through the diamond screening machine comprise single-row template diamond screening and double-row template diamond screening; and B, pasting single-row diamonds and double-row diamonds, and pasting the single-row diamonds and the double-row diamonds in sequence, wherein a plurality of rows of diamonds formed on an adhesive layer of drawing paper in the step of pasting the single-row diamonds and a plurality of rows of diamonds formed on an adhesive layer of drawing paper in the step of pasting the double-row diamonds are sequentially and alternately arranged and distributed.

The invention discloses a capacitive pressure sensor with high linearity. The pressure sensor comprises a silicon substrate layer, a silicon dioxide layer and a polysilicon layer which are successively arranged from bottom to top. The silicon substrate layer is provided with a first cavity and four lower electrodes. The silicon dioxide layer is provided with a polysilicon supporting layer and a second cavity. The second cavity is connected to the first cavity. The polysilicon layer comprises a movable sensitive film layer, four upper electrodes and a polysilicon anchor area. One end of each upper electrode is connected to one end surface of the movable sensitive film layer through a connecting rod. The other end of each upper electrode is connected to the polysilicon anchor area through an elastic component. The lower electrodes are located below the connecting rod. End surfaces of the upper electrodes, which are close to the movable sensitive film layer, and end surfaces of the lower electrodes, which are far away from the first cavity, are in a same surface. The pressure sensor converts a longitudinal displacement change into a transverse area change so that the high linearity is possessed. Simultaneously, upper and lower pole plates of the pressure sensor are non-contacted so that device reliability is increased.

The invention provides an aqueous polyamide dispersion. The aqueous polyamide dispersion comprises the following components in parts by weight: 25-35 parts of polyamide micropowder, 2-6 parts of an emulsifier, 1-3 parts of an emulsifying dispersing agent, 1-3 parts of a wetting agent and 60-65 parts of water. The invention also provides a preparation method of the aqueous polyamide dispersion. Themethod comprises the following steps of: 1, adding 25-35 parts of the polyamide micropowder to 60-65 parts by weight of the water; 2, adding 2-6 parts by weight of the emulsifier to an aqueous polyamide micropowder solution prepared in the step 1; 3, adding 1-3 parts of the emulsifying dispersing agent to a solution prepared in the step 2; and 4, adding 1-3 parts of the wetting agent to a solution prepared in the step 3. The aqueous polyamide dispersion provided by the invention has the beneficial effects that the smoothness and the wearing easiness of a PVC (Poly Vinyl Chloride) labor protection glove are improved and the compatibility with other substances in a powder-based water slurry product is good.

The invention relates to a related device for chemical engineering, in particular to a stirring device for chemical engineering, which comprises a cylinder body, a cooling mechanism, a power mechanism and a stirring mechanism, the cooling mechanism is slidably installed in a groove arranged on the cylinder body, the cylinder body is in threaded connection with the cooling mechanism, the power mechanism is fixedly installed on the cylinder body, and the stirring mechanism is fixedly installed on the cylinder body. The stirring mechanism is mounted in a groove formed in the power mechanism in a sliding manner, and the stirring mechanism is meshed with the power mechanism; according to the device, vortexes of different sizes can be formed for stirring, various stirring requirements are met, newly-added powdery materials can be rapidly fed into the middle position of liquid, material mixing is accelerated, the dust phenomenon of a material adding opening is avoided, the liquid near the inner wall of the cylinder body can be kept to flow all the time, the uniform mixing speed is increased, and the stirring efficiency is improved. And meanwhile, the device can perform cooling treatment.

The invention discloses a method for treating valuable secondary materials such as electronic waste through an oxygen inclined blowing rotary converter. The method comprises the following steps: (1) material preparation: pretreating valuable secondary materials such as electronic wastes; (2) burdening: burdening the following components in percentage by mass: 62-92% of valuable secondary materials such as electronic wastes, 5-20% of scrap iron or iron shots, 2-10% of quartz stone or silicon powder and 1-8% of limestone; (3) smelting and deslagging: continuously adding materials, smelting under an oxygen-enriched condition, pouring out slag when the quantity of melt in the furnace is close to the position of a furnace mouth, continuously feeding and smelting, and repeating the operation for multiple times until crude copper liquid in the furnace is close to the furnace mouth; (4) blowing: blowing industrial oxygen or oxygen-enriched air into the furnace, blowing for 30-120 minutes, sampling and observing, and finishing blowing after conditions are met; and (5) discharging: pouring out the crude copper liquid through a furnace mouth, casting the crude copper liquid into an ingot shape, and leaving furnace slag in the furnace to enter the next operation furnace period. The method is efficient, energy-saving, environment-friendly, high in recovery rate and high in raw material adaptability.

The invention discloses an anti-adherence protection patch for electronic product package. The patch comprises an HC (Hydrocarbon Compound) layer, an OCA (Optically Clear Adhesive) layer, an optical PET (Polyethylene Glycol Terephthalate) layer, a silica gel layer and a release membrane which are arranged in sequence. The anti-adherence protection patch has high permeability and haze, problems that a conventional protection patch for electronic product package has long-term transportation abrasion, scratching damage caused in use, electrostatic adherence, and the like, can be solved, the problem that a common HC is adhered to a packaging box since a surface is particularly flat can be avoided because of a designed planar microcosmic concave-convex structure, meanwhile, the flexibility of the protection patch can be improved, then the patch can be easily fitted with an electronic product with radians or curved surfaces, and in addition, the silica gel layer is easy in adherence and goodin bubble elimination effect and can be repeatedly used.

The invention discloses a scribing method for a wafer with a double-sided structure, and relates to the technical field of semiconductors, and the method comprises the steps: obtaining the wafer with the double-sided structure; providing a UV film, and performing pre-curing treatment on a specified area of the UV film; enabling one side of the wafer to be attached to the UV film, so that the pre-cured designated area completely covers the chip area on the wafer; scribing the wafer attached with the UV film to complete the separation of the chips on the wafer; and carrying out secondary curing treatment on the UV film, and taking down the chip. According to the method for pre-curing the designated area of the UV film, the viscidity in the designated area of the UV film is reduced to the degree that the structural surface of the wafer cannot be damaged, and the viscidity of the UV film outside the designated area is not reduced, so while the structural surface is protected, the effect of fixing the wafer can be achieved, and after final cutting, the problem that the structure of the chip is stuck by the UV film is avoided, and the yield is improved.

The invention relates to a porous material syringe needle-free static spinning apparatus characterized in that a spinning buffering cylinder of a spinning system is cylindrical; the upper and lower ends of the spinning buffering cylinder are conical; a liquid outlet is formed in the lower end of the spinning buffering cylinder; the diameter of the hole is 3 to 20mm; a porous medium sleeve is arranged on the lower end of the spinning buffering cylinder; the spinning buffering cylinder is connected with a power device via a copper core clamp; an outward extraction electrode of a copper core of the copper core clamp is connected with a power supplying system; an aperture formed in the top end of the spinning buffering cylinder is connected with a liquid discharging end of a liquid supplying device via a liquid supplying pipeline; a liquid charging end of the liquid supplying device is connected with a liquid storage case; and a receiving plate faces right under the liquid outlet formed in the lower end of the spinning buffering cylinder. Special spinning assemblies are employed, so spinning quality can be greatly improved and spinning evenness can be guaranteed; and the porous material syringe needle-free static spinning apparatus is characterized by simple technology, easy industrial application and wide application range.