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41results about How to "Meet the needs of different levels" patented technology

High light-flux anti-glare polycarbonate and method for preparing same

InactiveCN101792586AEliminate glareLight transmission continuumGlobesPolycarbonateLight flux
The invention discloses high light-flux anti-glare polycarbonate and a method for preparing the same. The method for preparing the high light-flux anti-glare polycarbonate comprises the following steps of preparing polycarbonate resin light diffusion master batch from 94.7-99.8 percent by weight of polycarbonate resin, 0.1-5 percent by weight of astigmatism agent and 0.1-0.3 percent by weight of antioxidant and weighting 30.6-92.9 percent by weight of polycarbonate resin, 6.5-66 percent by weight of polycarbonate resin light diffusion master batch, 0.1-0.5 percent by weight of light guiding agent, 0.3-0.6 percent by weight of ultraviolet absorbent, 0.1-0.3 percent by weight of antioxidant and 0.1-2 percent by weight of mould releasing agent. In the invention, the light ray is distributed two times or more to eliminate the blinding glare, and the light is transmitted continuously to the maximum extent. The anti-glare polycarbonate has low optical loss and high light flux, can meet the need of different level of various environment and application situations, can be used for producing the shell of the lighting lamp, is convenient to prepare with simple process and is suitable for industrial production.
Owner:广州金园聚合物挤出成型科技有限公司

Riemerella anatipestifer antibody indirect ELISA method detection kit and application thereof

The invention relates to a riemerella anatipestifer antibody indirect ELISA method detection kit and an application thereof; the kit comprises: a) an antibody detection plate, b) enzyme conjugate working fluid, c) a positive control, d) a negative control, e) a sample diluent, f) 10X concentrated washing liquid, g) a substrate coloured solution A, h) a substrate coloured solution B, and i) a stopping solution; the beneficial and positive effects of the invention are that: the kit is simple in operation; the requirements for apparatuses needed are not high; the kit can be operated by everyone, can meet the requirements with different levels such as epidemic disease monitoring, hygienic epidemic prevention, intensive culture, and individual culture, is suitable for large-scope popularization and application, and has wide market prospects.
Owner:INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI

Crystal-granular sweetener for dining, and preparation method thereof

ActiveCN102228175AAdjustable sweetnessAchieve sweetness modificationFood preparationSucroseFluidized bed
The invention provides a crystal-granular sweetener for dining, and a preparation method thereof. The sweetener is prepared from the materials of, by weight: 82.5 to 99.89% of alditol, or a mixture of alditol and sucrose; 0.1 to 10% of a sweetening agent; 0 to 5% of amino acid; and 0.01 to 2.5% of a binder. The particle size of alditol is 10 to 80 meshes. The sweetener is prepared with a fluidized bed coating technology. The specific steps of the method are that: the sweetening agent, or a mixture of the sweetening agent and amino acid is dissolved, the binder is added to the dissolved material, the material is uniformly coated on alditol granules or alditol and sucrose mixed granules by spraying, and the coated granules are dried by baking, such that the crystal-granular sweetener for dining is obtained. The crystal-granular sweetener provided by the present invention has a crystal form similar to sucrose crystals. The crystal grains have advantages of well-distributed sizes, good stability, high fluidity, and low calorie or no calorie. The sweetener is non-hygroscopic, and is a healthy edible sweetener for dining. The production technology of the sweetener is simple and feasible, and the method is suitable for industrialized productions.
Owner:NEWTREND TECHNOLOGY CO LTD

Voice note system and implementing method thereof

The present invention relates to the voice short message system field, which discloses a voice short message system and the implementation method. Adopting the system and method, the users can send the contents needing sending to the system adopting the text input and electronic document file input ways through WEB pages on the internet. The system extracts text from the documents sent, and converts the text into voice, and sends the voice messages to the designated users or groups through the calling system. The users can convert the long paragraph text or electronic document into voice type through the system and method to send voice messages to the designated users or groups. By using the stored text and the existing electronic documents of the computer, the present invention directly plays text content or document content to the phone terminal, which saves a great deal of labor power and materiel power for recording, and can quickly finishes the document playing.
Owner:ZTE CORP

Beidou foundation enhancement system covering trunk line of Yangtze River and construction method

The invention discloses a Beidou foundation enhancement system covering the trunk line of the Yangtze River and a construction method. The Beidou foundation enhancement system comprises a base stationsubsystem, a broadcasting station subsystem, an integrity monitoring subsystem, a data processing subsystem, an equipment monitoring subsystem, a network transmission subsystem and a support guarantee subsystem. According to the invention, a reference station network reasonably distributed in the Yangtze River trunk line area is constructed so thatobservation data of Beidou satellite data information is obtained. Data deviation observation information within a certain period of time is obtained to provide basic data for eliminating interference of ionized layers and tropospheric layers on satellite signals, an AIS broadcasting station is constructed, Beidou differential positioning service is provided for Yangtze River inland river sailing ships, RTK data service is provided through a private network or a public network, and Beidou differential positioning service is provided for the Yangtze River inland river sailing ships. The system meets the requirements of different levels, monitors the integrity of the system, monitors the overall effectiveness and availability of the system and the precision of the whole network, and has an alarm function, thereby guaranteeing that reliabledifferential positioning information is provided for a user.
Owner:交通运输部长江通信管理局 +3

Charging method based on user experience quality strategy in next generation network

The invention relates to a charging method based on a user experience quality strategy in a next generation network, comprising the following processing steps: (1) when a user uses network service, applying for a higher service level if the user does not satisfy the service quality in the present period or needs higher service quality; (2) after QoS substitutes QB to receive a resource application of a user terminal QC of the QoS, transmitting a QoS message with higher service quality to a network resource control functional entity NRCFE; (3) feeding back an usability checking result of a QoS resource to the QB by the NRCTE; (4) receiving a resource applying reply of the QB by the QC to experience; (5) before a specified physical examination period delta t is finished, determining whether the user satisfies the level service or not by the QC; (6) transmitting a user service flow, and controlling the user by the QB through using the executed strategy; (7) after the user service is finished, releasing the network resource by the QB; (8) releasing the network resource by the QB through the NRCFE, and transmitting a QoE charging message of the user to a BF system.
Owner:NANJING UNIV OF POSTS & TELECOMM

Intelligent body examination instrument based on face recognition and body examination method based on face recognition

The invention provides an intelligent body examination instrument based on face recognition and a body examination method based on the face recognition. The intelligent body examination instrument comprises a support, a controller arranged in the support, a face acquisition module used for acquiring face data, a human body data detection module used for detecting human body data, and a display screen. The face acquisition module,, the human body data detection module and the display screen are all mounted on the support and connected with the controller. The face acquisition module is used foracquiring the current face data of users, the current face data of the users is bound with the current human body data obtained after body examination, each user is uniquely authenticated through theface recognition technology, operation steps for the users to use the intelligent body examination instrument for the second time can be effectively simplified, then the requirements of different customers on different levels are met, and the user experience is improved.
Owner:上海幸卓智能科技有限公司

Ether energy and preparation method and application thereof

The invention discloses ether energy and a preparation method and application thereof. The preparation method comprises the following steps of: adding water to dissolve monosaccharide, oligosaccharide or sugar alcohol of monosaccharide or oligosaccharide serving as raw materials in a solid state; and adding a catalyst of which the mole number is 1 to 3 times that of free hydroxyl groups in sugar or sugar alcohol and an etherification reagent of which the mole number is 1 to 3 times that of free hydroxyl groups in sugar or sugar alcohol, performing reaction with stirring at the temperature of between 80 and 160 DEG C, and separating and purifying to obtain an ether compound of sugar or sugar alcohol. The preparation method has obvious advantages and simple and rapid process. The ethers obtained after the reaction are convenient to separate from alkali liquor on the lower layer due to automatic demixing. The residual alkali liquor after separation can be reused. The preparation method has low discharge of waste and waste liquor and is environmental-friendly. The ether energy obtained by the preparation method can be easier to burn, has low solidifying point and is favorable for being used in the low temperature environment.
Owner:JINAN UNIVERSITY

Bilateral control intelligent monitoring power distribution system

The invention discloses a bilateral control intelligent monitoring power distribution system. The bilateral control intelligent monitoring power distribution system is characterized by comprising a monitoring host and a control center. The monitoring host and the control center are connected to an industrial Ethernet switch through a communication cable in parallel. The industrial Ethernet switch is connected with a human-machine interface, a communication controller and a communication gateway through a communication cable in parallel. The human-machine interface, the communication controller and the communication gateway are connected in parallel. The monitoring host and the control center are additionally arranged, the state of the power distribution system can be operated, monitored and controlled remotely, and adjustment can be made in time. By means of the additionally-arranged human-machine interface, a user can monitor and control the power distribution system used by the user, and the user can carry out selection flexibly to meet demands in different levels. The human-machine interface is further connected with a microprocessor protection device and a temperature and humidity controller, the using risk is reduced for the user, and the safety performance in the using process is guaranteed.
Owner:STATE GRID CORP OF CHINA +1

Cursor synchronization method, and related equipment and system

The embodiment of the invention discloses a cursor synchronization method, related equipment and a cursor synchronization system, applied to intelligently achieving synchronization of a server cursorand a client cursor, and meeting different layers of requirements of users on synchronization of the server cursor and the client cursor. The method provided by the embodiment of the invention comprises the steps of when a target process starts or target equipment is enabled, judging whether the target process or the target equipment is in a preset white list; if yes, acquiring real-time information of a server cursor during a target process execution period or a target equipment using period; and sending the real-time information of the server cursor to the client.
Owner:SANGFOR TECH INC

Porcine circovirus 2-type antigen or antibody colloidal gold fast detection test strip and method

InactiveCN110687302AImprove recognition rateSolve the technical problem that the antigenic mass cannot be identifiedVirus peptidesBiological material analysisAntigen epitopeAntigen testing
The invention discloses a porcine circovirus 2-type antigen or antibody colloidal gold fast detection test strip and method. The test strip comprises a PVC plate, a sample pad, a gold standard pad, anitrocellulose membrane, a water absorption pad, a C-line and a T-line, wherein gold standard protein, namely CAP recombinant protein is adopted in the colloidal gold test strip, is dominant antigen epitope peptide of a denucleation positioning signal and is provided with an His label; the CAP recombinant protein is low-temperature induced and expressed to supernatant through a prokaryotic expression system; and anti-porcine circovirus 2-type CAP recombinant protein polyclonal rabbit serum marked on the T-line (antigen detection test strip) or the C-line (antibody detection test strip) is purified after being coupled to the CAP recombinant protein through CNBr activated agarose gel FF. Through the test strip, an antigen or antibody in porcine serum can be quickly detected, sensitivity is high, specificity is strong, good stability is achieved, operation is simple, different levels of demands can be well met, and popularization to a basic level is easy.
Owner:ZHEJIANG ACAD OF MEDICAL SCI

Preparation method of high purity quartz, and quartz tube for low temperature heat exchanger and preparation method thereof

The invention discloses a preparation method of high purity quartz, and a quartz tube for a low temperature heat exchanger and a preparation method thereof. The preparation method of the high purity quartz provided by the invention mainly comprises the following steps: preparing a quartz powder with particle not more than 40 mesh; adding sodium nitrate into the quartz powder and mixing; conducting high temperature calcination on the quartz powder and soaking the quartz powder with mixed acid; cleaning and drying; adding aluminum nitrate or a hydrate thereof in the quartz powder; and then conducting high temperature calcination, cleaning with mixed acid and drying. The preparation method of the quartz tube for low temperature heat exchanger is as below: adding a binder into the high purity quartz prepared by the above preparation method, mixing, melting at high temperature, and drawing and cutting into a quartz tube. Comparing with the prior art, the high purity quartz prepared by the invention has greatly improved corrosion resistance especially acid resistance, and the quartz tube prepared by the invention gains strengthened corrosion resistance, acid resistance and mechanical strength, and is especially suitable for the low temperature heat exchanger.
Owner:连云港市盛昌照明电器有限公司

Feature extraction method of three-dimensional point cloud under persistent homology

The invention discloses a feature extraction method of a three-dimensional point cloud under persistent homology. According to the invention, a CCAC feature is added on the basis of the zeroth-dimensional betti number; subsequent evolution information of point cloud nested replication is further estimated; a novel integrated persistent feature IPF and a single-variable topological feature SIP which is obtained through coacervation of the IPF are provided; the betti number is expanded theoretically; the method can represent a spatial evolution process of nested replication more completely. Themethod can be used for measuring the topological structure change of the complex point cloud, has better statistical performance than the characteristics based on the graph theory, and can become a very effective method for extracting the potential imaging biomarker of the Alzheimer's disease. The invention provides a feature representation method which is wide in applicability and high in robustness, and can meet the requirements of different levels in practical application.
Owner:TAIYUAN NORMAL UNIV

Cooling office bed

The invention discloses a cooling office bed which comprises a bed board and adjustable bearings. Grooves are arranged in four corners of the reverse side of the bed board, and revolving holes are arranged in two sides of each groove; each adjustable bearing comprises a rotating shaft, a strut, a pin roll and a support pipe, a plurality of pin holes are arranged in the strut at intervals in the lengthwise direction, a through hole communicating the support pipe is arranged in the top of the support pipe, the rotating shaft is vertically connected with the strut, the central line of the rotating shaft is perpendicular to the central line of the strut, the strut inserts in the inner hole of the support pipe, the pin roll penetrates the through hole of the support pipe and the pin hole of the strut, the adjustable bearings are mounted in the grooves of the bed board, two ends of the rotating shaft are respectively and rotatably connected with the revolving holes in the sides of the grooves, a single-chip microcomputer, a cooling chip and a temperature sensor are arranged inside the bed board, and a touch screen is arranged on the side face of the bed board. The bed board can be taken as a sleeping bed and ca be adjustable in height relative to the ground floor, and the cooling chip is used for cooling the bed board.
Owner:湖南睿众文化发展有限公司

Engine oil recovery and pretreatment device of vertical retired passenger car

The invention discloses an engine oil recovery and pretreatment device of a vertical retired passenger car. The engine oil recovery and pretreatment device comprises a physical and chemical property detection unit, an abrasive particle analyzing and filtering unit and a grading recovery unit, wherein the physical and chemical property detection unit is composed of a waste engine oil deposit tank (23) and a waste engine oil diluting cylinder (24) which is communicated with the waste engine oil deposit tank (23) through a conduit; the abrasive particle analyzing and filtering unit is composed of an abrasive particle analyzing and filtering cylinder (25) and a drive shaft (15); the grading recovery unit is composed of a centrifugal separating cover (16), and a waste engine oil grading recovery cylinder (18) embedded at the bottom of the separating cover through a locating round slot (51); a plurality of abrasive particle analyzing and filtering rotary layers (13) driven by the drive shaft are arranged inside the abrasive particle analyzing and filtering cylinder; a centrifugal separating layer (34) driven by the drive shaft is arranged at the bottom; annular drainage baffles (14) are distributed at the periphery of the abrasive particle analyzing and filtering cylinder; the abrasive particle analyzing and filtering cylinder is arranged at the lower end of the waste engine oil diluting cylinder; and the upper part of the centrifugal separating cover is connected with the bottom of the abrasive particle analyzing and filtering cylinder. The engine oil recovery and pretreatment device has the advantages of being simple in structure, good in practicability, significant in filtering and recovering effects and the like.
Owner:WUHAN UNIV OF TECH

Stomach-nourishing health-care pasty herbal tea and preparation method thereof

InactiveCN106135580AGood effect on protecting gastric mucosaGood effect on gastric mucosaTea substituesHouttuyniaLophatherum
The invention discloses stomach-nourishing health-care pasty herbal tea. The stomach-nourishing health-care pasty herbal tea comprises the following components in parts by mass: 5-9 parts of a mixed aqueous extract from 15 Chinese herbs, 2-6 parts of lentinan, 0.2-1 part of sea cucumber polysaccharide and 20-40 parts of agar, wherein the 15 Chinese herbs are centella asiatica, couchgrass roots, an emilia sonchifolia water extract, lophatherum gracile, houttuynia, abrus cantoniensis hance, hypericum japonicum, lotus leaves, honeysuckle, momordica grosvenori, wild chrysanthemum, urena lobata, mussaenda philippica, ilex chuniana and caesalpinia minax. The stomach-nourishing health-care pasty herbal tea is applicable to special people with cold spleens and stomachs, and in the formula, the polysaccharides such as the lentinan and the sea cucumber polysaccharide which have a relatively good effect of protecting gastric mucosae are added. Tests show that after addition of the lentinan and the sea cucumber polysaccharide, the stomach-nourishing health-care pasty herbal tea can effectively improve discomfort caused by long-term drinking to the people with bad spleens and stomachs; in addition, the invention provides a novel herbal tea product form, which is welcomed by consumers and has a good prospect in market popularization.
Owner:ZHAOQING MEDICAL COLLEGE

Wool felt-resistant two-component water-based paint and preparation method thereof

The invention provides a wool felt-resistant two-component water-based paint and a preparation method thereof. The raw materials comprise component A: acrylic resin I, acrylic resin II, polyurethane resin, a base material wetting agent, an antifoaming agent, a dispersing agent, a delustering agent, a coalescing agent, a leveling agent, a wear-resistant additive, deionized water, water-based resin-free color paste and a thickener; and component B: aliphatic isocyanate. The preparation method comprises the following steps: uniformly dispersing the acrylic resin I, the acrylic resin II and the polyurethane resin, adding the base material wetting agent, the defoamer, the dispersant, the coalescing agent and the deionized water, uniformly dispersing, adding the delustering agent, dispersing until the fineness is qualified, adding the leveling agent, the deionized water, the wear-resistant aid, the thickener and the color paste, and uniformly dispersing; and discharging to obtain the component A, and uniformly mixing the component A with the component B aliphatic isocyanate to obtain the wool felt-resistant double-component water-based paint. The preparation method is simple, and the coating has excellent wear resistance, chemical resistance and the like.
Owner:卡秀万辉(无锡)高新材料有限公司

Comprehensive utilization method of seed watermelons

The invention provides a comprehensive utilization method of seed watermelons. After the method is adopted, sodium copper chlorophyllin, seeds of the seed watermelons, juice of the seed watermelons, moisturizing lotion and anti-inflammatory lotion can be obtained; furthermore, a processing method is simple, and the additional value of a product is high. The comprehensive utilization method of theresource of the seed watermelons is simple and efficient.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Desliming double-reverse flotation method for reducing impurity elements of phosphorite

The invention discloses a desliming double-reverse flotation method for reducing the impurity content of phosphorite. The desliming double-reverse flotation method comprises the steps that crushed phosphorite is firstly subjected to wet screening, and oversize materials enter a flotation section after being ground to the qualified particle size; undersize materials are subjected to grading and tailing pre-discarding, and graded coarse-particle-size materials are subjected to ore grinding or flotation operation according to conditions. And the flotation operation can be performed by firstly performing magnesium and iron removal reverse flotation and then performing silicon and aluminum removal reverse flotation on the product in the tank, or can be performed by firstly performing silicon and aluminum removal reverse flotation and then performing magnesium and iron removal reverse flotation on the obtained silicon and aluminum removal rough concentrate to obtain the flotation concentrate. According to the method, different process routes are selected according to the properties of selected ores by reasonably utilizing the difference of physicochemical properties of gangue minerals and phosphorite minerals, and the desliming operation with lower cost is combined with the reverse flotation silicon and aluminum removal operation with stronger adaptability and the reverse flotation magnesium and iron removal operation, so that the magnesium and iron impurities can be efficiently removed; and meanwhile, a cation flocculation reverse flotation process is introduced to solve the problems of foam fluidity and ore adaptability in a desilicication and aluminum reverse flotation operation section. Phosphorus concentrate products of different grades can be produced, and different levels of requirements of downstream phosphorus chemical industry are met.
Owner:BLUESTAR LEHIGH ENG INST CO LTD

Automatic packing unit for injection molding machine

The invention discloses an automatic packing unit for an injection molding machine. The unit comprises a four-axis robot packing device, a detection device, an injection molding machine body, a workpiece storage box and an unqualified workpiece storage box, wherein the four-axis robot packing device is located at the side edge of the injection molding machine body, the defection device is fixed atthe side edge of a conveying sliding rail, and is parallel to the conveying sliding rail, and the storage box is located below a four-axis robot, and is used for receiving a working conveyed by the four-axis robot. Compared with the prior art, the automatic packing unit for the injection molding machine can be fully automatically connected to the injection molding machine and a product full-automatic assembly line through the AGV trolley, can scan the workpiece in a packing process, obtain actual data of the workpiece, compare the actual data with preset data, detect a defect of the workpiece, and determine a quality level of the workpiece, quality inspection and packing processes are organically combined, so that the working efficiency is improved, and by detecting a superior product rate in the workpiece storage box in real time, placement of workpieces with different quality grades is controlled.
Owner:东莞市恒明机器人自动化有限公司

Roof for sun room or canopy

The invention discloses a roof for a sun room or a canopy. The roof is characterized by comprising more than two parallel connection members and light transparent components which are fixed between two adjacent connection members. A left wing beam and a right wing beam of the roof are hinged together through main bolts, and the angle can be changed according to terrain and environment without field survey, furthermore, the area of light transmitting sheets in the roof is not limited by a steel frame, thus, the roof is standardized in production and is capable of satisfying different needs.
Owner:黄海清

Method for preparing cristobalite micropowder from melted quartz crucibles used during polycrystalline silicon ingot casting

The invention belongs to the technical field of energy conservation, environmental protection and resource recycling and relates to a method for preparing cristobalite micropowder from melted quartz crucibles used during polycrystalline silicon ingot casting. The method specifically comprises steps as follows: 1) the crucibles are primarily crushed; 2) crushed crucible fragments are put into water or weak acid to be soaked and primarily washed; 3) the soaked crucible fragments are subjected to ultrasonic cleaning; 4) a jaw crusher is used for secondary crushing; 5) an internal type inverted rotary ball mill is used for ball milling the crucible fragments; 6) cristobalite micropowder is subjected to ultrafine gradation, that is, different grades of cristobalite micropowder products with the particle size ranging from 800 meshes to 3,000 meshes are obtained. The melted quartz crucible used during polycrystalline silicon ingot casing is used effectively, the cost of polycrystalline production enterprises in treatment of the waste quartz crucibles is saved, the cristobalite micropowder is prepared from the waste quartz crucibles, resource recycling is realized, and the method accords with the development trend of current cyclic economy and has significant economic and social value.
Owner:JIANGSU UNIV

Imaging device, communication peripheral device, imaging equipment, and driving recorder

The present invention provides an imaging device, a communication peripheral device, imaging equipment and a driving recorder. The imaging device comprises a main control module for controlling the transmission and reception of signals and the configuration of functions, a detection module which is controlled by the main control module to transmit an identity detection signal and receive an identity signal as a feedback and is connected to the main control module, and a configuration module which is controlled by the main control module to configure the functions of the imaging device according to the identity signal and is connected with the main control module. According to the invention, the user cost can be saved, and the different needs of a user are satisfied.
Owner:DDPAI DONGGUAN VISUAL EQUIP CO LTD

Monitoring system and monitoring method

A monitoring system comprises: a WEB service module which relays the contents inputted by a monitoring party to a first conversion module, and converts the equipment data of a monitored terminal from a third conversion module into information with predetermined format and sends the information to a WEB interface; the first conversion module which converts the contents from the WEB service module into corresponding instruction information, and converts the instruction information into short messages and sends the instruction information in form of short messages to the second conversion module through a short message network system; the second conversion module which reduces the instruction information in form of short messages into the instruction information and sends the reduced instruction information to the monitored terminal, and converts the equipment data generated by the monitored terminal according to the instruction information into the equipment data in form of short messages and sends the equipment data in form of short messages to the third conversion module through the short message network system; and the third conversion module which reduces the equipment data in form of short messages into the equipment data and sends the reduced equipment data to the WEB service module.
Owner:ZTE CORP

High-purity quartz preparation method and quartz tube for low temperature heat exchanger and preparation method

The invention discloses a preparation method of high purity quartz, and a quartz tube for a low temperature heat exchanger and a preparation method thereof. The preparation method of the high purity quartz provided by the invention mainly comprises the following steps: preparing a quartz powder with particle not more than 40 mesh; adding sodium nitrate into the quartz powder and mixing; conducting high temperature calcination on the quartz powder and soaking the quartz powder with mixed acid; cleaning and drying; adding aluminum nitrate or a hydrate thereof in the quartz powder; and then conducting high temperature calcination, cleaning with mixed acid and drying. The preparation method of the quartz tube for low temperature heat exchanger is as below: adding a binder into the high purity quartz prepared by the above preparation method, mixing, melting at high temperature, and drawing and cutting into a quartz tube. Comparing with the prior art, the high purity quartz prepared by the invention has greatly improved corrosion resistance especially acid resistance, and the quartz tube prepared by the invention gains strengthened corrosion resistance, acid resistance and mechanical strength, and is especially suitable for the low temperature heat exchanger.
Owner:连云港市盛昌照明电器有限公司
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