62results about How to "Good mechanical quality" patented technology

The carbonization of cellulose fiber fabric comprises an initial stage of heat treatment up to 250° C. to 350° C., with a relatively high mean temperature rise speed of 10° C. / min to 60° C. / min, an intermediate stage up to 350° C. to 500° C. with a lower mean temperature rise speed of 2° C. / min to 10° C. / min, and a final stage up to 500° C. to 750° C. with a mean temperature rise speed that is again raised to 5° C. / min to 40° C. / min.

Probe-based methods are provided for wire bonding and joining of structures. The wire bonds are formed via a meniscus-confined electrodeposition technique. The electrodeposition technique of the invention can also be used for fabricating one or more nano-sized or micro-sized elongated structures. The structures extend at least partially upwards from the surface of a substrate, and may extend fully upward from the substrate surface. Apparatus suitable for use with the electrodeposition technique are also provided.

The present invention relates to a reinforced magnetic resonance imaging catheter. The catheter comprises a medical device having at least one lumen extending therethrough. The elongated body also includes a proximal end, a distal end, and circumference, a longitudinal axis running between the proximal and distal ends, and a coaxial layer that incorporates at least one elongated ceramic member that is substantially covered with a coating. An antenna is operably disposed proximate the distal end the medical device.

A flexible hose of multilayer plastics material for transporting fluids, the hose comprising from the inside towards the outside:an inner layer of a polyolefin that is inert relative to water;a bonding layer having adhesive properties relative to the polyolefin and to the flexible polyvinyl chloride;a layer of flexible polyvinyl chloride; andtubular reinforcement in contact with the polyvinyl chloride.

The invention discloses an ultrasonic atomizer. The ultrasonic atomizer comprises sequentially connected power line for providing electrical energy, an ultrasonic source signal generator for receiving the electrical energy and converting the electrical energy to an electrical signal, an ultrasonic transducer for receiving the electrical signal and converting the electrical signal to high frequency oscillation, an ultrasonic atomization working cavity filled with liquid and an atomization air outlet pipe for discharging mist converted from liquid with high frequency oscillation. The external wall of the ultrasonic atomization working cavity is provided with an air inlet. The atomization air outlet pipe is inserted into the ultrasonic atomization working cavity and is provided with a through hole corresponding to the air inlet. The ultrasonic atomizer that omits fan and reduces the volume of the whole device has the advantages of simple structure, convenient operation, low energy consumption and cheap price. The atomized particles are smaller than 5 micrometers.

A multilayer hose made of plastics material for transporting highly solvent chemicals such as paint, the hose including, from the inside to the outside, a polyamide / polyolefin alloy layer, a polyurethane-based adhesive layer, a flexible plasticized layer of polyvinyl chloride, and tubular reinforcement in contact with the polyvinyl chloride.

The present invention relates to a composition and a process for the production of a molding made of high-purity transparent quartz glass, by means of additive manufacturing.

The invention relates to an ultrasonic flat type piezoelectric vibrator which is made of niobium zinc-niobium lead stannate. The chemical molecular formula is Pb(Zn1 / 3Nb2 / 3)x(Sn1 / 3Nb2 / 3) yTizZr1-x-y-zO3. A proportioning test is carried out by setting x and y in the molecular formula of the niobium zinc-niobium lead stannate material to be within the ranges of 0<x<0.1 and 0<y<0.1 and respectively setting Ti and Zr to be within the range of 0.4 to 0.44; and the numerical values of x, y and z are determined from a test result, namely, the optimal proportion of each component is determined. In the design scheme, utilization performance is largely enhanced, service life is largely prolonged, the mechanical quality, the factor and the tensile strength of piezoelectric ceramics which are finished are improved, the sensibility of the ultrasonic flat type piezoelectric vibrator is enhanced, the loss is reduced, the tensile strength is improved, and the aging performance is improved. Piezoelectric ceramic chips and a silver electrode are connected through a red copper film the surface of which is coated with a stannum layer, thus, defects such as convex welding points, higher resistance and the like of a traditional product are avoided. The vibrator can carry heavier current, is difficult to break or burn out, and has excellent consistency and reliability; and the rate of finished products is increased to 99% from original 92%.

An improved method and an improved apparatus are provided for producing a thin glass ribbon, which provide borders at the edges of the ribbon. The edges formed are of high mechanical quality and a formation of new secondary borders after the severing or at least the thickness of such secondary borders is reduced compared to the original borders. The method includes drawing the thin glass ribbon from a molten glass or from a preform, severing the borders, and cooling the resulting glass ribbon. The severing is effected at a location along the moving direction of the thin glass ribbon and at a time at which during the cooling of the thin glass ribbon the viscosity of the glass is in a range from 107 dPa·s to 1011 dPa·s, so that the edges of the thin glass ribbon newly produced by the severing of the borders are rounded off.

The invention discloses a modification treatment method for enhancing the antibacterial property of polyester fiber, comprising the following steps: (1) pretreatment of the polyester fiber, (2) preparation of composite soaking liquid, and (3) modification treatment. Special modification treatment is performed on the polyester fiber, and obviously enhances the antibacterial ability of the fiber, and the fiber has good antibacterial stability, strong washing fastness, good mechanical quality, great market competitiveness, and great production and processing benefits.

The invention discloses a stacked combined type heavy hammer sheet and a manufacturing method thereof and belongs to the technical field of hammer manufacturing. The heavy hammer sheet comprises heavyhammer sheet bodies, wherein a square groove is formed in an upper surface of each heavy hammer sheet body, a connecting rod mounting groove is formed in the middle of each heavy hammer sheet body, the multiple heavy hammer sheet bodies are arranged in an overlapped mode, butt joint pieces are symmetrically mounted on two sides of the connecting rod mounting groove in the middle of each heavy hammer sheet body, and the butt joint pieces are symmetrically distributed with the circle center point of each heavy hammer sheet body as the center. The stacked combined type heavy hammer sheet is advantaged in that the whole combined heavy hammer sheet is integrated into a whole, overall stability is improved, after the heavy hammer sheets are combined, the combined heavy hammer sheets are arranged on the cable, the heavy hammer sheet is convenient to assemble and disassemble, high in bonding strength, high in use stability and high in practicability, shock resistance is improved, use safety is improved, compactness and waterproof performance of a coating can be effectively improved, connecting friction force is increased when the square connecting rod mounting groove polished by a file ismounted, and mounting stability is improved.

The invention discloses a preparation method of corrosion-resistant high-strength metal fiber felt. The preparation method comprises the following steps: (1) preparation of metal fiber; (2) preparation of semi-finished metal fiber felt; (3) sintering treatment; (4) rolling treatment; (5) modification treatment; and (6) drying treatment. The invention provides the preparation method of the metal fiber felt, the process is standard, the steps are reasonably matched, the overall preparation cost is low, and the preparation method is convenient for large-scale popularization and application, and the prepared metal fiber felt has good mechanical use quality, strong temperature resistance and corrosion resistance, and good market competitiveness and production efficiency.

The invention discloses a water boiling device, which comprises a water tank, an electric heating element, ultrasonic generators, a high-water level probe, a low-water level probe, a temperature controller, a faucet, a water inlet, a drain outlet, an exhaust hole, a controller and a support, wherein the water tank has a hollow structure made of stainless steel or aluminum alloy and is arranged on the support; one ultrasonic generator is arranged on the wall of the water tank and extends into a water body, or a plurality of ultrasonic generators are distributed on the outer wall of the water tank; the ultrasonic generators transmit ultrasonic waves with the frequency of between 20 and 40kHz and the power of between 200 and 1,000W; and the electric heating element is fixed on the water tank. According to the water boiling device, energy generated by the ultrasonic generators is transferred to 12 water molecular groups, so that the water molecular groups are converted into small micro (small) water molecular groups; the water boiling device is descaled by utilizing the ultrasonic waves; and after the water boiling device runs for 15 days, a scaling layer on the boundary surface of the electric heating element is only 0.001 millimeters, and the middle part of the electric heating element is still kept smooth, so the aims of scale prevention and descaling are well fulfilled.

The invention provides a piezoelectric ceramic material and a piezoelectric vibrator manufactured by the same. The piezoelectric ceramic material has four components of niobium zinc acid lead, niobium tin acid lead, lead zirconate and lead titanate. The piezoelectric ceramic material contains main components represented by a chemical general formula Pb(Zn1 / 3Nb2 / 3)x(Sn1 / 3Nb2 / 3)yTizZr1-x-y-zO3. Performance test proves that the material is superior to like materials in the country and approaches or achieves world standard in relative dielectric constant, piezoelectric constant and mechanical quality factor. The piezoelectric ceramic vibrator prepared by the piezoelectric ceramic material remarkably prolongs service life and accuracy, so that the piezoelectric ceramic material has wide application prospect.

A material can be molded into part made of a biocompatible binder containing one or several compounds for adding calcium and phosphorus It has been subjected to a surface pickling operation intended to ensure surface application and hence surface access of the elements added to the binder, in particular calcium and phosphorus. This material may advantageously be used for the realization of endo-bone implants or bone prostheses.

The invention discloses a thermal spraying treatment process. The thermal spraying treatment process comprises the following steps of (1) metal surface pretreatment, (2) coating treatment, (3) thermalspraying treatment and (4) cooling treatment. According to the thermal spraying treatment process, thermal spraying treatment processes are reasonably improved and adjusted, the thermal spraying treatment effect is improved, a thermal spraying coating which is compact in structure, good in mechanical quality and high in abrasion resistance and corrosion resistance is formed on the surface of a metal matrix, the protection effect on metal is improved, the service life of metal is prolonged, and the thermal spraying treatment process has application and popularizing value.

The invention discloses a preparation technology of a high-strength fireproof dustproof safety rope net which comprises the steps: firstly, performing gamma ray irradiation treatment on polyethylene fiber; then improving an inorganic filler preparation method and adding a rhizoma coptidis extracting solution and zinc hydroxystannate in an inorganic filler preparing process, wherein a synergistic effect of the rhizoma coptidis extracting solution and the zinc hydroxystannate can obviously improve fire resistance and strength of a rope net product; then injection molding, drawing and stretchingto prepare net lines; finally, twisting the net lines through a twisting machine and putting the net lines on a net weaving machine to be woven into a safety rope net after performing hot steaming treatment. Compared with an existing product, the product disclosed by the invention has the characteristics of high strength, light net weight, thermal insulation, ventilation, light transmission, fireresistance, dust prevention, noise reduction and the like; meanwhile, the product further has stronger wear resistance, corrosion resistance and acid-base resistance; in addition, the safety rope netdisclosed by the invention has an obvious dustproof effect and can remarkably reduce the dust content in construction regions.

The invention concerns an apparatus for beam deflection, in particular for scanning microscopy, a light beam being deflectable by a mirror arrangement that is alternatingly rotatable by a rotary drive. The apparatus for beam deflection makes possible maximum variability in terms of frequency range and maximally achievable oscillation frequency, and is thus usable in flexible and versatile fashion. It moreover allows almost any desired angular offset from the zero point position to be established, and is characterized in that the rotary drive comprises two mutually independent drive units which rotate the mirror arrangement, together or mutually independently, about a rotation axis.

The invention discloses dust removal equipment with high efficiency and a strong purification effect. The dust removal equipment comprises a housing, a control device and a gas collection chamber; a rotating mechanism is arranged in the housing, the rotating mechanism is composed of an inner rotating mechanism and an outer rotating mechanism, an external gas chamber is formed between the outer rotating mechanism and the housing, an internal gas chamber is formed between the outer rotating mechanism and the inner rotating mechanism, gas introduction plates, rotating wheels and partition platesare arranged at the bottom of the external gas chamber, a first filter mechanism is arranged on a bottom isolation wall between the external gas chamber and the internal gas chamber, and a second filter mechanism is further arranged at the top of the housing. The dust removal equipment is high in dust removal efficiency and good in purification effect, is stable in use quality and has great marketcompetitiveness.

The invention relates to aluminum oxide powder, and an aluminum oxide ceramic and a preparation method thereof, and provides aluminum oxide ceramic powder, which comprises the following components inparts by weight: 100-115 parts of aluminum oxide, 23-28 parts of aluminum hydroxide, 5-6 parts of magnesium oxide, 6-7 parts of titanium dioxide powder, 1-5 parts of magnesium silicon nitride powder,10-15 parts of a silane coupling agent, 3-4 parts of a binder, 15-20 parts of zirconium oxide, 2-6 parts of aluminum nitride powder, 1-2 parts of a defoaming agent and 5-8 parts of AlF3. According tothe invention, the raw material components of the aluminum oxide ceramic are reasonably matched, so that the use quality of the aluminum oxide ceramic powder is optimized; and the green body is kept in a certain shape and has high density and compactness by virtue of the interaction force among aluminum nitride, aluminum oxide, zirconium oxide and magnesium oxide, so that ceramic sintering is facilitated, the sintering temperature can be reduced, and the ceramic density is improved.

The invention discloses a method for prolonging the service life of wood. The method comprises the following steps: (1) cutting and washing treatment; (2) steam explosion treatment; (3) primary modification treatment; (4) secondary modification treatment; (5) drying treatment. According to the method disclosed by the invention, the wood is specially treated, the comprehensive quality of the wood is effectively improved, the service life of the wood is prolonged, the market competitiveness of the wood is well improved, and great popularization and application value is obtained.

The invention discloses a process for firing ancient building grey tiles in double roasting atmospheres, and belongs to the technical field of grey tile processing and manufacturing. The process comprises the following steps:(1)weighing raw materials,(2)carrying out ball milling treatment,(3)preparing a green body,(4)carrying out drying treatment,(5)carrying out roasting treatment, and(6)cooling.The process is reasonable in step matching, low in production cost, environmentally friendly and beneficial to application and popularization, and the prepared grey tile is good in mechanical qualityand high in corrosion resistance and weather resistance.

The invention discloses a processing method capable of enhancing the dyeing ability of a woody woven material. The method comprises the following steps: (1) cleaning treatment, (2) blasting treatment,(3) first drying treatment, (4) composite modification treatment and (5) secondary drying treatment. Special treatment is performed on the woody woven material, the processability, dyeing ability andmechanical quality of the woody woven material are improved effectively, the service life is prolonged, the use grade is enhanced, and high competitiveness on the market is achieved.

The invention discloses a high-performance long-service-life EPDM pump valve body material. The material is prepared from ethylene propylene rubber, nano white carbon black, calcium carbonate, epoxy soybean oil, a plasticizer, an activating agent, a vulcanizing agent, a promoting agent and modified filler. The material has the advantages that raw material components of the EPDM pump valve body material are optimized and improved, the using performance of the EPDM pump valve body material is well improved, the mechanical quality of the EPDM pump valve body material is improved, the service lifeof the EPDM pump valve body material is prolonged, the marketing competition performance and the production efficiency are improved, and the EPDM pump valve body material has high popularization andapplication value.

The invention discloses a wire harness protection piece, which belongs to the technical field of pressure-sensitive adhesives. The wire harness protection piece is particularly is formed by forming non-woven fabric composed of mixed fibers containing polypropylene resin fibers, modified polylactic acid fibers and modified basalt fibers into a preset shape. According to the invention, the componentcomposition of the wire harness protection piece is changed; the polypropylene resin fibers, the modified polylactic acid fibers and the modified basalt fibers are mixed to prepare the non-woven fabric, the use quality of the wire harness protection piece is effectively improved, the polypropylene resin fibers serve as a main body, the cost is reduced, the two kinds of modified fibers are added,and the overall strength, weather resistance and temperature resistance are improved; after the three fibers are mixed and woven into the non-woven fabric, the overall mechanical quality, the use stability and the like of the non-woven fabric are remarkably improved, and the protection on the wire harness is effectively enhanced.

The invention discloses a preparation method of high-stability conductive plastics with good mechanical property. The preparation method comprises the following steps of (1) preparation of a characteristic filler; (2) weighing of raw materials for standby; (3) blending treatment; and (4) extrusion molding. The method provided by the invention is reasonable in technological step matching, relatively low in production cost, convenient in large-scale production, popularization and application, good in conductivity of the prepared conductive plastics, excellent in mechanical quality and stable inuse characteristic and has great market competitiveness and processing production benefit.

The invention discloses a dyeing treatment method of a nylon fishing net thread, and belongs to the technical field of fishing net thread processing. The dyeing treatment method comprises the following steps: (1) surface pretreatment, (2) variable pressure treatment, (3) surface soaking treatment, and (4) cleaning and drying treatment. The dyeing treatment method is simple in overall process and easy to popularize and apply, and the treated nylon fishing net thread is good in dyeing effect, high in use stability and good in mechanical quality.

The invention discloses a damper with adjustable hammer head spacing and a manufacturing process thereof, which belong to the technical field of damper manufacturing. The damper comprises a damper body, the damper body is composed of a fixing base, a connecting rod and semicircular damper bodies. The two sides of the two ends of the fixing base are connected with two connecting rods, the front ends of the connecting rods are connected with semicircular hammer bodies respectively, a fixing steel rod is welded to the inner end face of the fixing base, the fixing steel rod is sleeved with a movable steel pipe, the movable steel pipe is arranged in an adjusting box, a connecting ring is fixedly installed above the adjusting box, and a position adjusting groove is formed in the adjusting box. The invention discloses a damper with adjustable hammer head spacing and a manufacturing process thereof. The damper body is good in mechanical quality, high in use stability and high in practicability, the toughness and the hardness of the whole movable steel pipe are guaranteed, the stability in the moving process is improved, the spacing can be adjusted according to wind power, the damper can better counteract vibration caused by wind power to a cable, and the service life of the cable is prolonged.

This invention relates a fully drawn high tenacity yarn and a process for making the same from a partially oriented polyester feed yarn in a drawing process comprised of two stages.

The invention discloses a composite rubber material with an electromagnetic shielding function. The composite rubber material is prepared from nitrile butadiene rubber, silicone rubber, natural rubber, fluorine rubber, stearic acid, sulfur, kaolin, mica powder, polyvinyl alcohol, sodium pyrophosphate, antioxidant, accelerator and modified functional filler. The rubber material has the advantages of simple raw material composition, wide source, very high electromagnetic shielding performance, high temperature resistance, high corrosion resistance, high permanent deformation resistance, high mechanical quality, long service life, high stability, high comprehensive quality, and great market competitiveness and production application value.