1549 results about "Microcrystalline" patented technology

The invention discloses a glass ceramic thickness detection method and a related device, and the method comprises the steps: obtaining a vibration signal generated in a glass ceramic thinning and grinding process, and extracting a vibration dominant frequency, a frequency spectrum centroid frequency and a frequency band energy distribution ratio as thickness characteristic parameters through fast Fourier transform processing; three-dimensional position coordinates of the grinding head are obtained, space mapping and weighted average processing are conducted on the thickness characteristic parameters, and space distribution of the thickness characteristic parameters is obtained; performing process interference compensation and sliding window time sequence smoothing processing according to the grinding process parameters to obtain stable thickness characteristic distribution; based on the stable thickness feature distribution and the current grinding process, final thickness distribution is predicted, and a thickness qualification pre-judgment result is obtained; and extracting a time sequence change characteristic of the thickness characteristic parameter as a vibration evolution index, and performing comprehensive quality evaluation in combination with a thickness eligibility pre-judgment result. According to the scheme, the thickness can be detected in real time in the thinning and grinding process of the microcrystalline glass, and the production efficiency is improved.

The application provides a microcrystalline glass product, and components of the microcrystalline glass product are shown in percentage by weight, and the microcrystalline glass product contains SiO2: 40-55%; Al2O3: 15-30%; Li2O: 0.1-6%; ZnO: 9-20%; MgO: 0.1-6%; and TiO2: 0.5-7%. Through reasonable component design, the microcrystalline glass product obtained by the application has excellent mechanical properties and is suitable for display devices or electronic devices.

The present application relates to the technical field of glass-ceramics, in particular to a lithium-free transparent spinel glass-ceramics, a preparation method and application thereof. The lithium-free transparent spinel glass-ceramics is obtained by heat treatment of a base glass, and spinel crystal is the main crystal phase. The composition of the glass-ceramics contains the following oxides in mol%: SiO2 38.00-48.00%, Al2O3 25.50-30.00%, ZrO2 3.00-5.00%, MgO 5.00-8.00%, ZnO 8.00-14.00%, Na2O 7.20-14.00%, B2O3 3.00-8.00%, K2O 0-2.00%, and Y2O3 0-1.00%, and basically no Li2O. The glass-ceramics of the present application does not use high-cost lithium, and can obtain excellent surface and deep stress characteristics and excellent drop impact resistance through chemical strengthening.

The invention relates to the technical field of microcrystalline glass detection, in particular to a microcrystalline glass panel structural strength detection device. Comprising a driving mechanism, an impact head, a test board, a first container and a second container. The test bench is used for installing a to-be-tested microcrystalline glass panel. The driving mechanism is in transmission fit with the impact head, so that the impact head can periodically impact a to-be-tested glass ceramic panel mounted on the test board. The impact head is provided with an internal flow channel. The first container is used for containing hot fluid media, and the second container is used for containing cold fluid media. And the first container and the second container are communicated with the internal flow channel through a switch control mechanism. The switch control mechanism is used for alternately communicating one of the first container and the second container with the internal flow channel so as to adjust the temperature of the impact head. The structural strength of the microcrystalline glass panel can be specifically tested according to the application scene in the actual use process, the integrating degree of the test process and the actual application scene is higher, and the test result has higher reference value.

The invention relates to the technical field of temperature control, in particular to a nanocrystalline glass annealing treatment temperature dynamic monitoring control method and system, and the method specifically comprises the steps: capturing an unsteady thermal radiation signal in a glass internal microcrystalline phase change process in real time, and synchronously obtaining three-dimensional residual stress distribution data; dividing the annealing process into gradient crystallization control units according to the time-temperature transition characteristic of the glass; constructing a crystal phase evolution model, and dynamically analyzing the coupling relationship between the microcrystal nucleation rate and the residual stress of each gradient crystallization control unit; and a multi-target particle swarm optimization algorithm is adopted, and temperature field gradient distribution is corrected in real time in combination with grain boundary migration kinetic parameters. According to the invention, the problem of residual stress accumulation and grain size mismatch in a nanocrystalline glass annealing process in the prior art is solved.

The invention discloses a combined passivation back contact battery which comprises an N-type silicon wafer, a second intrinsic amorphous silicon layer, a microcrystalline silicon layer, an anti-reflection layer, a second semiconductor opening region, a first semiconductor opening region and a transition region, the anti-reflection layer is a single-layer amorphous silicon carbonitride layer or a laminated structure composed of an amorphous silicon carbide layer and an amorphous silicon carbonitride layer, and the second semiconductor opening area is composed of a first intrinsic amorphous silicon layer, a P-type amorphous silicon layer, a transparent conductive film and a metal electrode which are sequentially arranged on the back face of the silicon wafer. The first semiconductor opening area is composed of a tunneling oxide layer, an N-type polycrystalline silicon layer, a transparent conductive film and a metal electrode which are sequentially arranged on the back face of the silicon wafer, and an opening is etched in the transparent conductive film on the surface of the transition area to form an insulation groove. Amorphous silicon carbonitride or amorphous silicon carbide / amorphous silicon carbonitride laminated layers are adopted as the anti-reflection layers, so that reflection loss is reduced, the reliability and durability of the cell are improved, and the conversion efficiency of the cell is improved.

The invention relates to the technical field of coating testing devices, and particularly discloses an induction cooker glass ceramic functional coating testing device which comprises a base and a detection box located on the base, a detection cavity is formed in the detection box, a testing table is arranged in the detection cavity, and the testing table comprises a testing execution mechanism and a testing placement seat; the test execution mechanism comprises a friction disc, an electromagnetic coil is arranged in the friction disc, and a groove which is spirally distributed is formed in the bottom of the friction disc; the test placement seat comprises a loading table of which the middle of the top is provided with a to-be-tested coating panel in a position corresponding to the friction disc, the periphery of the top of the loading table is provided with a convex check ring, the upper part of the convex check ring is provided with a nozzle corresponding to the to-be-tested coating panel, and the nozzle is communicated with a storage tank arranged at the bottom of the loading table through a pressurizing pipeline; a magnetorheological abrasive is stored in the storage tank; the device has the advantages of high test precision and real test simulation.

The invention discloses a porous ceramic filter for liquid magnesium alloy purification and a preparation method thereof, and the porous ceramic filter comprises the following raw materials in percentage by mass: 70-85wt% of ceramic particles, 8-15wt% of multi-element oxide system microcrystalline glass brazing filler metal and the balance of a binder, al2O3-B2O3-SiO2-MgO-CaO multi-element oxide system microcrystalline glass brazing filler metal is adopted, under the condition of air atmosphere high-temperature calcination, a compact reaction layer containing a low-melting-point glass phase, an aluminum oxide phase, a magnesium aluminate spinel phase, a calcium aluminosilicate phase, a borate phase and a silicate phase is generated on the surfaces of ceramic particles of a porous ceramic filter through a chemical reaction; the magnesium alloy filter has high strength and good high-temperature stability, and the problems that the filter loses efficacy and magnesium alloy melt is polluted due to the fact that the filter is eroded by magnesium alloy liquid are effectively solved.

A high-strength, highly transparent nanocrystalline glass, a preparation method therefor, and a use thereof. The high-strength, highly transparent nanocrystalline glass uses precursor minerals mainly comprising synthetic aluminum-rich feldspar-like ceramic glass material, β-spodumene material, cordierite material, synthetic β-dicalcium silicate material, and magnesium aluminum spinel material for the main body of a feldspar-like matrix glass having a stable structure. Ultrafine zirconia powder having a particle size of less than 10 nm is used as a nucleating agent and microcrack damping and pinning agent, to control the formation of nanocrystals smaller than 100 nm in the glass body formed after melting. The volume percentage content of the nanocrystals is 50%-95%, and the nanocrystals together with the matrix glass form a high-strength, highly transparent nanocrystalline glass having a uniform microstructure. The obtained nanocrystalline glass has high hardness, high fracture toughness and high light transmittance, and is suitable for manufacturing various types of optical glass.

The invention discloses a microcrystalline texture glass cover plate and a preparation method thereof. The microcrystalline texture glass cover plate comprises a glass body; a series of surface microstructures are arranged on the surface of the glass body, the section of each surface microstructure is in a wave shape, compared with a common glass cover plate, the glass cover plate is endowed with more excellent optical and mechanical performance due to the special structure of the microcrystalline glass, and the requirements of high-end markets are better met when the glass cover plate is applied to consumer electronics cover plates. The diversification of the MASK design provides diversification of the texture effect of the microcrystalline glass, and specific requirements are met. And the surface of the microcrystalline glass is processed more accurately by the yellow light development technology and reaches the micron level. Pyramid morphology of particles on the surface of the microcrystalline glass is regulated and controlled through a wet etching process, uniform etching is carried out, the texture effect is brighter, and the hand feeling is finer and smoother.

A coating composition for a substrate, which includes: a microcrystalline cellulose composition, at least one silane, at least one acid catalyst, a liquid dispersion phase, and optionally at least one inorganic filler. Also, the use of this composition for the release coating of a substrate such as a paper surface or a metal surface. Finally, an article having at least one surface is coated with the coating composition.

The invention relates to the technical field of rock plates, and particularly discloses a microcrystal colored crystal rock plate and a production process thereof, and the production process comprises the following steps: S1, cooling a pressed green body, and then spraying ground glaze; s2, a pattern layer is printed on the ground coat layer in an ink-jet mode, digital glue is printed after positioning, colored crystal dry particles are applied, drying is carried out after redundant dry particles are removed, transparent microcrystal dry particles are applied after fixing protection glue is sprayed, and drying is carried out after fixing protection glue is sprayed; and S3, polishing after firing. The rock plate has diamond-like gloss through the high refractive index of the colored crystal particles, the microcrystal dry particles can achieve fine texture and high glossiness, and the fixing protection glue is applied to the microcrystal dry particles and the colored crystal dry particles, so that the effect of fixing the dry particles can be achieved, and the wear resistance and the antifouling property can be improved.

The invention discloses a negative electrode material and a preparation method and application thereof. The negative electrode material comprises an inner core and a coating layer coated outside the inner core, the inner core is microcrystalline graphite with a porous structure, the coating layer is a carbonized material and comprises a cross-linking layer and a compact layer, the surface of the microcrystalline graphite is coated with the cross-linking layer, and the surface of the cross-linking layer is coated with the compact layer; wherein the cross-linking layer is formed by carbonizing heavy components in a coating agent on the surface of the microcrystalline graphite, the compact layer is formed by carbonizing weak polar groups in the coating agent, and the graphitization degree of the compact layer is greater than or equal to 94%. The negative electrode material disclosed by the invention can effectively reduce side reaction and structural breakage in the charge-discharge process, enhance the overall conductivity, and finally improve the first efficiency, the specific capacity and the cycling stability of the battery.

The invention discloses compression-resistant glass and a preparation method thereof, and relates to the technical field of special glass. When the compression-resistant glass is prepared, an anorthite crystal phase is used as a main material, a wollastonite crystal phase is used as an auxiliary material, and zinc, barium, boron, sodium, antimony and titanium elements are added, so that the compression-resistant glass ceramic is prepared; the preparation method comprises the following steps: mixing tetraethoxysilane, zirconium oxychloride octahydrate and 3-glycidyl ether oxypropyl trimethoxy silane, adding hydrochloric acid, and stirring to obtain modified sol; the preparation method comprises the following steps: mixing hydroxyl-terminated polysiloxane, trimethyl ethyoxyl silane, methyl triethyoxyl silane and octadecyl triethyoxyl silane, adding a hydrochloric acid solution, and reacting to prepare an organosilane modified solution; mixing the modified sol and the organosilane modified solution, coating the surface of the compression-resistant microcrystalline glass with the mixture, and curing to obtain the compression-resistant glass. The compressive glass prepared by the invention has the advantages of high compressive strength, hydrophobicity, wear resistance and high surface hardness.

The utility model provides a crystallization roller way kiln for improving crystallization warping of microcrystalline glass. The crystallization roller way kiln comprises a furnace body with a hearth, an inlet is formed in one side of the furnace body, and an outlet is formed in the other side of the furnace body; a conveying device for conveying from the inlet to the outlet is arranged in the hearth; a temperature control system and a temperature control device matched with the temperature control system are arranged in the hearth; from the inlet to the outlet, the temperature control system comprises a heating unit and a cooling unit which are connected in sequence; the temperature control device comprises a top temperature control device and a bottom temperature control device which operate independently; and the conveying device is arranged between the top temperature control device and the bottom temperature control device. According to the crystallization process of the microcrystalline glass, the crystallization roller kiln disclosed by the utility model not only solves the problem that the microcrystalline glass is warped in the crystallization process, but also can correct and repair the warped microcrystalline glass by independently regulating and controlling the temperatures of the tops and the bottoms of the heating unit and the cooling unit.

The invention belongs to the technical field of aluminum alloy material preparation, and particularly relates to an optical microcrystalline aluminum material, a preparation method and application, an aluminum alloy ingot is extruded twice to obtain an extruded bar, the extrusion temperature is 275-325 DEG C and the extrusion ratio is 2-8 during primary extrusion, and the extrusion temperature is 375-425 DEG C and the extrusion ratio is 20-30 during secondary extrusion; the extruded bar is sequentially subjected to annealing treatment, drawing treatment and stabilizing heat treatment, the optical microcrystalline aluminum material is obtained, and the temperature of the stabilizing heat treatment is 90-240 DEG C; the grain size and the surface roughness are reduced, and meanwhile the hardness is improved.

The invention discloses a method for preparing black microlite from molten ferronickel slag, which comprises the following steps: mixing the molten ferronickel slag with a hardening and tempering agent, and carrying out melting and heat preservation to obtain a homogenized molten mass; casting the homogenized molten mass into a mold to obtain a formed sample; carrying out crystallization treatment on the formed sample under the condition of a non-oxidizing atmosphere, and cooling to obtain black microlite; and the utilization rate of the ferronickel slag is effectively improved.

The invention relates to the technical field of arc-shaped microcrystalline panels, in particular to an arc-shaped microcrystalline glass plate and a preparation method and application thereof. The roughness of the inner and outer surfaces of the arc-shaped microcrystalline glass plate is less than or equal to 0.06 mu m; the radial unevenness A of the arc-shaped microcrystalline glass plate is less than or equal to 0.4%, and A = h / L * 100%; the axial unevenness B of the arc-shaped microcrystalline glass plate is less than or equal to 0.4%, and B = d / L * 100%. The arc-shaped microcrystalline glass plate provided by the invention has a flat and smooth surface, can avoid optical scattering, meets the visibility requirement, and has the advantages of good flatness, low radial unevenness and axial unevenness, no warping angle phenomenon and obvious visual distortion.

The utility model discloses a heterojunction cell and a photovoltaic module, and relates to the technical field of photovoltaics. The heterojunction cell comprises a first transparent conductive layer, an n-type microcrystalline silicon layer, a first intrinsic amorphous silicon layer, an n-type monocrystalline silicon layer, a second intrinsic amorphous silicon layer, a p-type microcrystalline silicon layer and a second transparent conductive layer which are stacked in sequence. The heterojunction cell also includes a first electrode connected to the first transparent conductive layer and a second electrode connected to the second transparent conductive layer. Wherein the first transparent conductive layer comprises a first zinc oxide layer, a first indium tin oxide layer and a first titanium oxide layer which are stacked in sequence. The transparent conductive layer is arranged to be a composite layer structure made of three materials, so that the use amount of expensive indium tin oxide can be remarkably reduced, and the cost is reduced. The first conductive film with the composite layer structure can also relieve the problem of ultraviolet-induced degradation of the heterojunction cell, improve the performance stability of the cell and prolong the service life of the cell.

The invention provides a photosensitive glass ceramic with lower visible light absorption loss, which comprises the following components in molar percentage: cation components: 50-65% of Si < 4 + >; 25 to 38% of Na < + >; 2-6% of Zn < 2 + >; 3-9% of Al < 3 + >; 0.001 to 0.1% of Ag < + >; 0.001 to 0.08% of Ce < 4 + >; 0.02 to 0.2 percent of Sb < 3 + >; the negative ion component comprises 88 to 98 percent of O < 2->, 0.001 to 0.09 percent of Sn < 4 + > and 88 to 98 percent of Sn < 4 + >; f-: 2 to 10%; and 0.05 to 2 percent of Br <->. Through reasonable component design, the obtained photosensitive microcrystalline glass is low in visible light absorption loss and can be used for preparing glass elements such as volume Bragg gratings with low optical loss and high diffraction efficiency.

The embodiment of the invention relates to the photovoltaic field, and provides a back contact solar cell, a preparation method thereof and a photovoltaic module, and the back contact solar cell comprises a substrate; the first doped regions and the second doped regions are alternately arranged on the backlight surface of the substrate; wherein the first doped region comprises a tunneling oxide layer and a first doped layer, the first doped layer is located on the side, away from the substrate, of the tunneling oxide layer, and the first doped layer is a polycrystalline silicon doped layer; the second doped region comprises an intrinsic amorphous silicon layer, a second doped layer and an insulating structure, the second doped layer and the insulating structure are located on the side, away from the substrate, of the intrinsic amorphous silicon layer, the insulating structure is located between the second doped layer and the first doped layer, and the doping type of the second doped layer is opposite to that of the first doped layer; and the second doping layer is an amorphous silicon doping layer or a microcrystalline silicon doping layer. The back contact solar cell provided by the invention is at least beneficial to avoiding electric leakage of the back contact cell.

Disclosed in the present application are a solar cell and a manufacturing method therefor, and a photovoltaic module. The solar cell comprises: a semiconductor substrate, which has a first surface and a second surface opposite to each other; and a first semiconductor layer, which is arranged on the first surface, and comprises a first part and a second part that is closely adjacent to the first part in a second direction, wherein the degree of crystallization of the first part is greater than that of the second part, and the first semiconductor layer is made of at least one of amorphous silicon, nanocrystalline silicon and microcrystalline silicon. By providing a rational crystallized area and a rational non-crystallized area on the first semiconductor layer, the overall cell efficiency of the solar cell is optimized by means of the higher degree of crystallization of the first part, thereby improving the cell efficiency; in addition, the passivation effect of the second part is ensured by means of the lower degree of crystallization of the second part, thereby preventing electric leakage.

The present invention provides a glass ceramic and a glass ceramic product having excellent mechanical properties. The microcrystalline glass product comprises the following components in percentage by weight: 40-55% of SiO2; 15 to 30 percent of Al2O3; 0.1 to 6 percent of Li2O; 9% to 19% of ZnO; 0.1 to 6 percent of MgO; and 0.5 to 7 percent of TiO2. Through reasonable component design, the obtained microcrystalline glass product has excellent mechanical properties and is suitable for display equipment or electronic equipment.

The invention relates to the technical field of coatings, and discloses a wear-resistant thin-layer water-based coating and a preparation method thereof.The water-based coating is prepared from, by weight, 100 parts of waterborne polyurethane, 5-25 parts of sodium sulfonate modified cellulose, 0.6-1 part of a defoaming agent, 3-5 parts of a coalescing agent, 5-8 parts of pigment filler and 1.4-2.3 parts of a dispersing agent. The modified cellulose contains a sodium sulfonate hydrophilic group, the water solubility of the cellulose is improved, the cellulose is better in dispersity in the water-based paint and free of precipitation, the storage stability of the paint is excellent, and microcrystalline cellulose is uniformly dispersed in the water-based paint and has a good enhancement effect on a polyurethane paint film; meanwhile, cellulose contains a rigid phenyl maleimide ring, so that the structural stability is high, the strength is high, and the impact resistance, the hardness and the wear resistance of a paint film are favorably improved.

The invention relates to an electronic component material technology, and aims to provide an LTCC (Low Temperature Co-Fired Ceramic) material with low dielectric constant and low dielectric loss and a preparation method thereof. The LTCC material is prepared from zinc borosilicate glass and zinc borosilicate microcrystalline glass with different softening point ranges, a ceramic filler, silicate and a metal oxide through ball milling, mixing, modeling and sintering, and the material contains Zn2SiO4 with a devitrified phase. According to the invention, two kinds of zinc borosilicate glass with different softening points are adopted as cooling assistants, and a devitrified phase Zn2SiO4 is generated through reaction in the sintering process, so that the problem of large dielectric loss of a composite system caused by more glass phases can be effectively improved; by flexibly regulating and controlling the content of each component and the components of the auxiliary materials, the sintering characteristics of the glass internal component regulation and control material are optimized, and the success rate of matching and co-firing of the material and silver is further improved; meanwhile, the sintering window is relatively wide, so that good quality stability of the product is favorably kept; the dielectric loss of the composite system is reduced by doping the nucleating agent, and the volume shrinkage process of the material is regulated and controlled.

The invention relates to the technical field of metal powder material preparation, and particularly discloses antimony-doped cesium terbium chloride microcrystalline powder and a preparation method thereof. The chemical composition of the microcrystalline powder is Cs < 5 > Tb < 1-x > Sb < x > Cl < 8 >. 6H < 2 > O, wherein x is equal to 0.05 to 0.30. The preparation method comprises the following steps: mixing cesium chloride, terbium chloride hexahydrate and antimony trichloride according to a molar ratio of 5: 0.8: x; adding pyridine hydrochloride as a chlorine element supplement, wherein the dosage of the pyridine hydrochloride is that 0.05-0.20 mmol of Py.HCl is used for every 1 mmol of CsCl; adding stearic acid as a process dispersant; and through combined treatment of mechanical ball milling and freeze drying, antimony-doped cesium-terbium-chlorine microcrystal powder with regular morphology and good dispersibility is obtained. The method is simple in process and mild in condition, particle aggregation can be effectively inhibited, the crystallinity and dispersion uniformity of the powder are improved, and the prepared microcrystal powder shows excellent optical performance.

This disclosure provides a microcrystalline scintillation glass array and a scintillator detector, relating to the field of radiation detection technology. The microcrystalline scintillation glass array includes: at least one layer of microcrystalline scintillation glass array, each layer comprising multiple microcrystalline scintillation glasses, each microcrystalline scintillation glass comprising a glass substrate and multiple microcrystals coated on the glass substrate; wherein the fabrication process of the microcrystalline scintillation glass includes incorporating microcrystals into the glass, and the material used to form each microcrystal includes a scintillator. Since the scintillator in the microcrystalline scintillation glass array is only incorporated into the glass in the form of microcrystals, the amount of scintillator required to fabricate the microcrystalline scintillation glass array is small, resulting in low cost. Furthermore, in the microcrystalline scintillation glass, the glass coating of the microcrystals provides a sealed environment for the microcrystals, making them less prone to deliquescence, and the protective effect of the glass broadens the application environment of the microcrystalline scintillation glass.

The present application relates to the technical field of sodium-ion batteries, in particular to a sodium ion battery cathode material, a preparation method thereof, and a sodium ion battery, in an XRD spectrogram of the cathode material, the characteristic diffraction peak A of (003) crystal plane and the characteristic diffraction peak B of (104) crystal plane are arranged at 2θ of 15-19° and 39-44°, respectively; wherein the microcrystalline size DA of the characteristic diffraction peak A and the microcrystalline size DB of the characteristic diffraction peak B satisfy the following condition: 1.3≤DA / DB≤2.5, wherein DA and DB correspond to the microcrystalline sizes of the (003) crystal plane and the (104) crystal plane in the perpendicular line direction, respectively.

The invention provides an arc-shaped microcrystalline glass plate structure performance detection system, and belongs to the technical field of material performance testing. The system comprises a rack, a sample table, an impact mechanism, a swing rod, a swing part, a driving assembly and a medium taking and supplying assembly, the sample table is provided with an arc-shaped supporting surface and a medium cavity; the impact mechanism is positioned above the arc-shaped supporting surface; the swing rod is provided with a sliding channel. The bottom end of the swinging piece is used for driving the sample table to rotate; the driving assembly comprises a rotating output shaft, a transmission arm and a transmission sliding block which are connected in sequence, the rotating output shaft is connected to the rack and is parallel to the rotating shaft of the swing rod, and the transmission sliding block is contained in the sliding channel in a sliding mode; the medium taking and supplying assembly comprises a piston barrel and a piston rod, the piston barrel is fixedly connected with the swing rod and provided with a one-way inflow port and a one-way outflow port communicated with the medium cavity, a piston of the piston rod is slidably sealed with the piston barrel, and a rod body is in transmission connection with the transmission sliding block. The system can realize multi-position and variable-temperature detection, and the detection reliability is higher.

The invention discloses an EU-1 molecular sieve and a synthesis method thereof, and belongs to the field of EU-1 molecular sieves. According to the EU-1 molecular sieve disclosed by the invention, the EU-1 molecular sieve is in a tetragonal shape; the average grain size of grains of the EU-1 molecular sieve is less than or equal to 600nm, the specific surface area SBET of the EU-1 molecular sieve is more than or equal to 390m < 2 > / g, and the micropore volume Vmicro is more than or equal to 0.22 cm < 3 > / g; the synthesis method of the EU-1 molecular sieve comprises the following steps: mixing a template agent, a silicon source, an aluminum source, an alkali source and a solvent I, aging, and carrying out segmented crystallization to obtain the EU-1 molecular sieve, according to the synthesis method of the EU-1 molecular sieve, disclosed by the invention, the EU-1 molecular sieve can be induced to form nucleated microcrystals to modulate within a very wide range by controlling crystallization time and temperature, so that a nanoscale product, namely the EU-1 molecular sieve, is obtained; in addition, the EU-1 molecular sieve crystal grain morphology can have a specific square morphology by regulating and controlling the proportion of cations in the crystallization system.