503results about How to "No warping" patented technology

The invention discloses a melt differential three-dimensional printer. The melt differential three-dimensional printer mainly comprises a material melting unit, a micro-droplet jetting unit, a cylindrical-coordinate system molding unit and a rack, wherein a servo motor drives a screw rod to rotate in the material melting unit; a heater, which is fixedly arranged inside a machine cylinder, ensures that granules are entirely plastified through temperature regulation; a molten material is transmitted by the screw rod to the micro-droplet jetting unit; in the micro-droplet jetting unit, the molten material is transmitted into a valve body through a hot runner in a runner plate; a linear servo motor drives a valve needle to do reciprocating motion in the valve body so as to quantitatively and intermittently squeeze the molten material out of a nozzle to form melt micro-droplets; in the cylindrical-coordinate system molding unit, the molten micro-droplets are injected to a bearing table for cooling and deposition molding; the servo motors in the left-right direction and in the vertical direction are respectively engaged with the corresponding screw rod to rotate so as to drive the material melting unit and the micro-droplet jetting unit to move along the left-right direction and the vertical direction; a circumference servo motor drives the bearing table with a worm gear to rotate through a worm rod so as to realize three-dimensional movement under a cylindrical-coordinate system.

The present invention provides ultra-thick bamboo/wood and solid wood composite panels, comprising core board, surface board and back board; said core board is composed of ultra-thick peeling veneers with the thickness of 6 to 12 mm, both said surface board and back board are made of bamboo or wood; said core board comprises several layers of said ultra-thick veneers, and the veneers of contiguous layer are assembled with parallel structure; glue layer is arranged between contiguous said veneers, the adhesive in the glue layer is the aqueous macromolecule isocyanate adhesive; said ultra-thick veneers of the core layer are the veneers with stress degradation treatment, i.e., punctate or line segment cracks are formed along the grain of said veneer loose side in each layer. The glue spread amounts of said composite panels are obviously less than that of the existing composite panels with the same thickness, and the composite panels are without warping or deformation. The present invention also provides the manufacturing method of the above composite panels.

The invention relates to a lightweight wear-resistant density-gradient foamed sole material and a preparation method thereof. The lightweight wear-resistant density-gradient foamed sole material is mainly composed of EPDM, ethylene-octene copolymer, low density polyethylene, a cross-linking agent, a filling material, a foaming agent and a foaming promoter. On the basis of foaming of EPDM, POE and LDPE and through control of a foaming ratio and density difference values of each layer of materials, a heterogeneous expandable rubber compound composed of a plurality of layers and having quasi-continuously changing performances in the thickness direction of the materials are subjected to one-shot mould pressing, foaming and moulding so as to prepare the foamed sole material, and function gradient differences of density, hardness and wear resistance are realized. Due to gradual change of density, stress concentration is mitigated, and the prepared foamed sole material does not warp. The foamed material has low density at one side close to the vola while the foamed material has high density at one side close to the outer sole, so the foamed sole material has good wear resistance, reduces the weight of the sole and has improved wearing comfortableness.

The invention relates to deformation-resistant high-yield-point and light zirconium boron-alumina silicate glass and particularly relates to alumina silicate glass containing ZrO2 and B2O3. The glass has the characteristics that the elasticity modulus E is more than or equal to 60 GPa and less than or equal to 78 GPa after the glass is chemically tempered; the yield point At is more than or equal to 620 DEG C and less than or equal to 850 DEG C; the coefficient of thermal expansion (CET) is more than or equal to 7.5*10<-6>/K and less than or equal to 9.8*10<-6>/K; the density is less than or equal to 2.5 g/cm<3>; the surface pressure stress is at least 700 MPa; and the thickness of a surface stress layer is at least 25 microns. The glass has deformation resistance, is high in yield point and is light in weight.

The invention relates to a wiring method and a manufacturing method of a capacitive touch screen, wherein the wiring method comprises the step of arranging two groups of wire transparent conducting films in X and Y directions, an insulating film and a bridging film on a basal plate, wherein the surface resistance of the bridging film is lower than the surface resistance of the transparent conducting films, an intersection structure of the transparent conducting films in the two directions comprises continuous connection and bridging connection, wherein the continuous connection structure is a continuation of transparent conducting film material at two sides of the intersection point, and the bridging connection structure has the structures that the transparent conducting film in X or Y direction is continuously connected and positioned on the basal plate at the intersection point, the transparent conducting film in the other direction is disconnected at the intersection point, the insulating film is covered on the transparent conducting films that are continuously connected at the intersection part, and the bridging film stretches over the transparent conducting films that are continuously connected at the intersection point and is covered on the insulating film and connected with the transparent conducting film disconnected at the intersection point; and the method comprises the step of manufacturing two groups of wire conducing film, the insulating film and the bridging film. The invention can avoid color difference and improve the sensitivity, the standard ratio and the quality of the touch screen.

The invention discloses a paint component, which comprises thermoplastic resin which is chosen from poly-cycloolefine resin, polyester resin, polyacrylic ester resin or polyacrylic ester mixture, radiating cured resin which comprises acrylic acid series monomer which has one or several functional groups as polymerization unit, oligomer which has ethylene unsaturated functional group, and initiating agent, wherein the weight of radiating cured resin is 220-1000 weight percentage relative to the weight of thermoplastic resin. The paint component can increase the hardness of the paint component, prevents base plate from scoring and damaging in operation, and has the properties of high transparent, and no warping.

A scratch proof film is prepared for arranging a microstructure layer at bottom side of base material and a scratch proof layer on top side of base material, setting concave-convex structure on scratch proof layer, making scratch proof layer have fog degree of 30-98% and surface resistivity of 10 to the power 8-10 Omega/„ as well as pencil hardness of 3H.

The invention discloses three-dimensional forming equipment capable of preparing a soft-hard compound polyurethane product. The equipment mainly consists of a material conveying unit, a screw extrusion unit, a three-dimensional forming platform unit and a safety equipment unit, wherein in the material conveying unit, a variable pump conveys an isocyanate mixture and polyol at different ratios to the extrusion unit; in the extrusion unit, a screw comprises a conveying section and a stirring section, wherein the stirring section is used for fully stirring the materials; in the three-dimensional forming platform unit, polyurethane is extruded to a carrying table to be deposited and formed. The safety equipment unit capable of preparing the soft-hard compound polyurethane product disclosed by the invention consists of an exhaust fan, an exhaust pipeline and a pair of rubber gloves; the exhaust pipeline can be used for discharging smell volatilizing in a reaction process of toluene diisocynate and polyol; by using the rubber gloves, the operator can directly take down articles from a forming platform without touch by hands. The safety forming unit is equipped, so that the safety and physical health of the operator are well protected.

The log dyeing method is one circular hot pressing dyeing and normal temperature and pressure dyeing method on log with water content not higher than 8 % and in proper length. The log dyeing process includes the following steps: compounding acid dye aqua; soaking at room temperature for 120-480 min; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; lowering to room temperature; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; and so on until reaching the total dyeing time of 600-900 min; washing with water; drying at 25-120 deg.c to water content not higher than 8 %; and discharging. The log dyeing maintains the natural grains of log, raises the density of timber, homogenizes the color of timber, and raises the value of timber.

Disclosed is a conductive composition useful for the preparation of electrically conductive structures on a substrate comprising a plurality of metal particles, a plurality of glass particles and a vehicle comprising at least one cellulose derivative and at least one solid organopolysiloxane resin dissolved in a mutual organic solvent. The solid organopolysiloxane resin acts as adhesion promoter and assists in stably dispersing the metal and glass particles to avoid an agglomeration of such particles without degrading the rheological properties. From such conductive compositions uniform well adherent electrically conductive structures essentially free from defects in the form of cracks, bubbles or coarse particulates can be prepared on dielectric or semiconductor substrates such as silicon wafers in an efficient and cost-saving manner e.g. by screen printing, drying and sintering while inducing only low warping of the substrate. These characteristics render said conductive compositions particularly useful for the fabrication of electrodes of a semiconductor solar cell helping to increase the cell conversion efficiency.

The invention belongs to the field of rolling of metal composite plates, and particularly relates to a method for smoothing continuous ply rolling of metal-based composite plates. The method comprisesthe steps of rolling a blank by using a two-roll mill with corrugated rolls on the top and the bottom to obtain a corrugated composite plate of which the upper surface and the lower surface are corrugated; carrying out annealing treatment; heating or cooling the annealed composite plate to a required temperature according to process requirements; and rolling and flattening the composite plate byusing a two-roll mill or four-roll mill with common flat rolls on the top and the bottom to obtain a corrugated flattened composite plate of which the upper surface and the lower surface are planes. During first-pass rolling through the corrugated rolls, rolling force changes in a stepped manner, thus, large stress can be generated at a position of a trough of a rolled piece, metallurgical bondingof metals is promoted and is gradually diffused towards two sides, during second-pass rolling through the flat rolls, the original wave crest position with small stress can generate peak stress againdue to increasing of rolling reduction, and metallurgical bonding on a whole contact surface is promoted again.

The invention relates to environmental protection paint, in particular to nano shell powder ecological functional flatly painted coating. The coating is prepared from shell powder (calcined), ash-calcium, kaolin, heavy calcium carbonate, hydrated magnesium silicate, titanium dioxide, vinyl acetate, hydroxyethyl cellulose, polyving akohol, polydimethylsiloxane, a water reducer and a defoamer. The coating solves the problem that indoor ornament or decoration paint is not environment-friendly. The coating has the characteristics that the coating is antifungal, purifies the air, prevents mildew, adopts a spiral pore structure, is 3.0mm in press coating thickness and high in glossiness, does not has obvious color aberration, is resistant to shock, abrasion, water, high and low temperature weather and aging, and ensures that the service life of a product reaches more than 20 years.

The invention relates to an insole material of a sneaker and a preparation method thereof, and particularly relates to a functional gradient insole material of the sneaker and the preparation method thereof. The sole material mainly comprises ethylene-vinyl acetate copolymer (EVA), ethylene-octene copolymer (POE), a crosslinking agent, a filler, a foaming agent, and a foaming promoter. Two-layer or multi-layer heterogeneous expandable rubber compound of which the performance continuously changes in the thickness or length direction of the material is foamed and molded to prepare the foamed sole material in a once mold pressing manner on the basis that EVA and POE are foamed. The foamed sole material has the advantages that (1) the functionality (for example, rebound resilience and hardness) of the prepared foamed sole material forms gradient change along the thickness direction, the hardness of the foamed material at one side near pelma is small, the rebound resilience is high, energy feedback is facilitated, the foamed material at one side near outsoles is large and the elasticity is low so as to provide enough support, thus, the foamed sole material is more comfortable to wear in maximal extent; (2) compared with the comfortable foamed sole material in the market at present and the preparation method, the material cost of the binder is saved, labor charges are saved, the molding period is shortened, and environment protection is facilitated.

The invention discloses a ceramic part 3D (three dimensional) printing method based on a photocuring adhesive. In a first curing system, a photosensitive resin-based adhesive solidifies quickly under the irradiation of ultraviolet light, bonds powder so as to take shape and has high curing efficiency; only when the photosensitive resin-based adhesive encounters the ultraviolet light, the photosensitive resin-based adhesive solidifies; and as the photosensitive resin-based adhesive is not likely to encounter the ultraviolet light in a spray nozzle, the photosensitive resin-based adhesive is not likely to solidify and block the printing spray nozzle. In a second curing system, an epoxy resin-based adhesive can also solidify quickly by adding polymercaptan serving as a solidification triggering agent; and as the epoxy resin and the polymercaptan triggering agent are in different spray nozzles and do not contact with each other, the epoxy resin-based adhesive is not likely to solidify and block the spray nozzle. As the adhesives of the dual curing systems are resin-based adhesives and no water is added all the time in the preparation process, the adhesives of the dual curing systems can be used for bonding water-solubility ceramic powder; and the green bodies of ceramic parts formed by the dual curing systems have very high strength and forming accuracy.

The invention belongs to the technical field of high-thermal-conductivity silicon nitride ceramic substrates, and particularly relates to a high-thermal-conductivity silicon nitride ceramic substrateand a preparation method thereof. The high-thermal-conductivity silicon nitride ceramic substrate is formed by stacking a plurality of silicon nitride tape casting biscuits layer by layer, a middle layer is arranged between every two adjacent silicon nitride tape casting biscuits, each middle layer is composed of two graphite plates and two graphite strips which are located between two ends of thetwo graphite plates respectively to form a cavity, the graphite plates are provided with a plurality of holes communicating with the cavities, and slurry separation layers are arranged between the graphite plates and the corresponding silicon nitride tape casting biscuits. The silicon nitride ceramic substrate prepared by the preparation method disclosed by the invention is relatively good in purity and performance, and particularly has relatively high heat conductivity and excellent mechanical properties.

The invention belongs to the technical field of processing of titanium alloy materials, and relates to a processing method of an SP700 titanium alloy sheet for superplastic forming. The processing method comprises step I, carrying out heating number casting around a beta phase transformation point, and carrying out water cooling to obtain an intermediate billet; step II, carrying out first hot rolling, so as to obtain a first hot rolled plate blank; step III, carrying out second hot rolling, so as to obtain a second hot rolled plate blank; step IV, carrying out intermediate annealing treatment; step V, carrying out cold rolling, so as to obtain a hot rolled plate blank; and step VI, carrying out annealing treatment on a finished product, so as to obtain the SP700 titanium alloy sheet of which the thickness is 0.5 mm to 1.2 mm. According to the processing method, operation is simple, the technology is stable and controllable, and the prepared SP700 titanium alloy sheet is uniform in structure, fine in grains and good in performance consistency, and meets the relative technological requirement of superplastic forming.

The invention provides a vacuum adsorption device of a battery pole piece, which is suitable for laser cutting operation and has simple structure and strong practicality. The device comprises a sealed cavity which is provided with vents communicated with a vacuum generator; the key point is that the top surface of the cavity is a plane substrate provided with plural adsorption through holes; the substrate is provide with an indent clearance groove along the cutting line of the battery pole piece; the cavity and the vacuum generator form a vacuumizing device; under the vacuumizing action of the vacuum generator, the battery pole piece can be tightly adsorbed on the substrate without lifting and bending or collapsing; the substrate is provided with the indent clearance groove along the cutting line of the battery pole piece, thus avoiding the uneven substrate as the substrate is cut and scratched when laser light beams cut the substrate during laser cutting, ensuring the cutting quality of subsequent battery pole pieces, and prolonging the service life of the substrate. The device has simple and reasonable structure, favorable adsorption effect and better popularization and application values.

The invention provides an ink composition for 3D ink-jet printing, an ink kit and a preparation method thereof. The ink composition comprises the following components in parts by weight: 45-75 parts of an acrylic acid oligomer, 20-45 parts of an acrylic monomer, 1-9 parts of an ultraviolet photoinitiator, 0.2-10 parts of aids and 0-4 parts of a coloring agent, wherein the acrylic acid oligomer is selected from one or more of polyurethane acrylate, polyester acrylate and polyether acrylate. At the temperature of 25 DEG C, the viscosity of the ink composition is 25-70cps; at the temperature of 40-60 DEG C, the surface tension of the ink composition is 20-35dyn; and under at least one temperature of 40-60 DEG C, the viscosity of the ink composition is 9-14.5cps. The ink composition disclosed by the invention is simple in constitution, and the service life of a printing head can be prolonged. Moreover, the curing process is simple, emission of VOCs (Volatile Organic Compounds) is avoided, pollution is eliminated, and buckling deformation is avoided in the preparation.

The invention relates to a high-temperature resistant protecting film of an electronic circuit board. The high-temperature resistant protecting film comprises a base material layer and an adhesive layer coated on the base material layer. The high-temperature resistant protecting film is characterized in that the adhesive layer is composed of the following components in parts by weight: 100 parts of mixed type organic silicon raw rubber, 0.1-5 parts of polydimethylsiloxane and 0.1-5 parts of Pt catalyzer. Compared with the prior art, according to the high-temperature resistant protecting film, the mixed type organic silicon raw rubber is adopted so that the protecting film can be automatically wetted and pasted on the surface of a pasted object, the protecting film can not contract or raise after being pasted for more than 200 hours at the high temperature of 250 DEG C, and the surface of the pasted object does not have oxidation, pollution or residual adhesive.

The invention discloses a reverse thermal bonding technology for making micro and nano fluid system with controllable size. The technology comprises steps of: coating a pretreated grating template with a layer of SU 8 photoresist; copying a graph to the SU-8 photoresist through a reverse embossing technology; then tearing off the cured SU-8 photoresist by using an adhesive UV tape according to different adhesion among interfaces, so as to successfully transfer the graph to a flexible UV adhesive tape; spinning a thin layer of SU-8 photoresist on another Si sheet to form a sealing layer Si substrate; covering the prepared SU-8 adhesive graphic structure layer on the Si substrate; and preparing the micro and nano fluid system through the reverse bonding technology. The invention combines an embossing technology and a bonding technology together, and has advantages of simple operation, no requirement on high temperature and high pressure, controllable channel size and no clogging; and a low manufacturing cost is conducive to mass production.