61results about How to "Improve intrinsic performance" patented technology

The invention relates to a method for continuously preparing politef via suspension method, wherein said method breaks, washes, separates, dries and cools the polymerized politef, to obtain middle particles to be mixed with purified dry air; via cyclone separator, entering into the airflow breaker of fluid bed to be broken and classified; then the fine powder is collected in the collector to generate dry politef powder. The inventnion can continuously and automatically supply politef powder at high quality, in sealed tube.

The invention discloses a middle temperature high-alumina intensification ceramic and manufacturing technique, which comprises the following parts: big-same-sand, wind-transmission potash feldspar, alumina, hunan-wash-mud, Jiangxi lithium chinastone powder, Hunan blach feldspar, calcinations talcum, boundary board soil, and quartz and Guizhou soil. The manufacturing technique comprises the following steps: batching; adding in water and abrading-ball; riddling and deironing; filter-pressing; pugging; ageing scouring; forming; drying; glazing; firing by kiln oven. The veintion has high transverse strength and good heat endurance.

The invention provides a multifunctional plastic with an anti-microbial effect, an oxidation resistance and a metal-chelating property and a preparation method thereof. The plastic material is mainly prepared from the following raw materials in parts by weight: 6%-10% of active anti-microbial agent, 2%-6% of active antioxidant, 3%-8% of metal-chelating agent and the balance of macromolecule resin base membrane. The modified resin substrate has certain anti-microbial effect, oxidation resistance and metal-chelating property. A novel application material is supplied for the products, such as, electronic cigarette, and the fields, such as, food packaging. The plastic has certain various characteristic functions; on the basis of improvement for the inherent performance of the products, the plastic is endowed with a more practical characteristic; the guarantee period of the products is prolonged and the application thereof is improved, so that the market value is promoted; the original raw material cost is lowered; the market space is expanded and the incoming is increased.

The invention discloses an arranging method of a super-hydrophobic and hydrophilic double-faced heterologous cotton fabric. The method comprises the steps of spraying a silicon dioxide sol finishing agent and a water-based fluorine-containing polyacrylic acid water repellent finishing agent on the surface of the cotton fabric by using a high voltage static field, keeping low amounts of condensing liquids, controlling the finishing agent only on the single face of the cotton fabric without permeation, then steaming, baking and washing, forming a coating on one surface of the cotton fabric to rough on the single face of the fabric, reducing the surface free energy of the cotton fabric and endowing the super-hydrophobicity of single face of the cotton fabric; on the other side, the good inherent hygroscopicity can be kept to obtain the super-hydrophobic and hydrophilic double-faced heterologous cotton fabric; furthermore, the arranging method provided by the invention is convenient to operate, simple in process and good in operability; meanwhile, the amounts of condensing liquids of the cotton fabric are low, therefore the method is applicable to the single water repellent finish of uneven heavy cotton fabrics, and the prepared super-hydrophobic and hydrophilic double-faced heterologous cotton fabric can meet the special requirements on functionality and comfort.

The invention belongs to the technical field of spinning and particularly relates to a preparation method of composite yarns. Preferably, composite yarns provided by the invention are multi-element functional yarns including bamboo fibers, wool fibers, natural silk yarns and the like, and inner performances of the yarns are improved, so that a finally produced textile has the properties of softness and fineness of cotton, smoothness of hemps, moisture absorption and perspiration, antibacterial properties and sanitation and the like; and the comfort of the textile is increased. After hemp fibers and cotton fibers are subjected to modification treatment by a biological enzyme, the dyeing effect of the yarns can also be improved.

The invention discloses a preparation method of a polyimide film. According to the preparation method, the polyimide film is produced by virtue of a tape-casting method, the adopted device has high precision, the produced polyimide film has the advantages of good uniformity, clean and flat surface, unlimited length and excellent performance and can be continuously produced; and a novel material is added into an original formula so as to protect the film from damage and improve the flatness and intrinsic property of the film. The high-quality polyimide film can be produced by the preparation method which is convenient, fast, safe, efficient and the like.

The invention discloses a crushing device (3) used in PTFE resin prepared through adopting a high-pressure suspension method. The crushing device consists of an upper layer paddle blade (31) and a lower layer paddle blade (32), wherein the upper layer paddle blade (31) is a bias cutting paddle blade and consists of toothed whirling paddles arranged on a rotating shaft; the intersection angle beta between the bias cutting paddle blade (31) and a horizontal plane is between 20 and 70 degrees; the lower layer paddle blade (32) is an impact paddle blade and consists of a rotating blade (321) arranged on the rotating shaft and an arc trough-shaped gear ring (322) fixed with the rotating blade (321) concentrically; the arc trough-shaped gear ring comprises a concentric ring protruding towards the circle center along the inside ring of the gear ring and a protrusion with a recess arranged at one end of the inner ring of the ring near the circle center against the rotating direction of the rotating blade; a straight strip trough is arranged between two arc trough-shaped grooves; and the height h of the concave protrusion is between 3 and 20 mm, while the breadth b of the straight strip trough is between 2 and 20 mm.

The invention discloses a formula and a preparation method of a transparent water-based rubber parting agent. The transparent water-based rubber parting agent comprises 100 parts of water, 0.3-3 parts of fatty acid salt, 1-4 parts of fatty acid and 0.3 to 5 parts of polyol. The parting agent of the invention is an environmentally friendly rubber film parting agent, and has the processing advantages of low energy consumption, no toxicity, excellent process performance, simple operation and the like in the manufacture or use process, thus enhancing the self deterioration resistance of the parting agent, greatly prolonging the storage stable phase of slurry, improving the intrinsic property of the parting agent, being suitable for rubber with various colors, and effectively solving the quality problem that the parting agent can cause color rubber to be vulcanized and decolored. The parting agent influences neither the physical property of rubber nor the processing performance of subsequent processing. Compared with other like products, the parting agent has the advantages of good environmental protection property, no dust flying, and no corrosivity on processing tools such as conveyer belts an the like.

The invention discloses an old book refurbishing device, which comprises a base, a conveying system, a scanning system and a spray head device, and is a multifunctional machine based on a computer control system and capable of being used for processing various old book problems such as paper breakage, wrinkles, handwriting stains, character missing and the like. The working process comprises the steps that after books are conveyed into the machine through the conveying system and pages of a paper supporting plate are turned over, the scanning system analyzes and accurately locates problems existing in paper pages, the work of guniting, humidifying and drying, covering and spraying, typewriting and the like is completed in sequence according to the problem conditions, the operation is repeated till book repairing is completed, and then the books are output. The old book refurbishing machine has great significance in repairing of old books and cyclic utilization of the old books.

During bearing production, waste bearing rings with oversized outer and inner diameter in 2-8 % is produced, and the present invention provides the method of reviving these waste products. It is found that the additional tempering can alter the size of waste bearing rings, and controlling the tempering mode, temperature and time can increase or decrease the size of bearing rings. Controlling the temperature and time of tempering in hot oil can increase the outer diameter of bearing rings in 0.01-0.035 mm, and local HF tempering can decrease the inner diameter of bearing rings in0.005-0.015 mm. The principle of the present invention may be also used for other precise mechanical parts.

A motor relates to the technical field of electric tools. An iron cover of the motor is positioned on an inner cover. A gasket, a ball bush and a bush cover are sequentially arranged between the iron cover and the inner cover. A terminal and a carbon button are both installed in the inner cover, an elastic arm is positioned on the carbon button, a rivet is positioned on the elastic arm, a fan blade is sleeved on one side of a shaft, an oil changer is positioned on one side of the fan blade, a limit washer and an oil prevention washer are arranged between the fan blade and the oil changer, a fibber washer is arranged on one side of a diverter, a punched piece is arranged on one side of the fibber washer, a patent leather line is positioned on the outer side of the punched piece, insulation powder layers are arranged at two ends of the punched piece, a copper washer is arranged on one side of the punched piece, a magnet is sleeved on the outer side of the punched piece, an elastic bow is positioned on the magnet, a straight bush is positioned in the iron cover, the iron cover is sleeved on the magnet, and a magnet change ring is sleeved on the iron cover. The motor is small in size, light in weight, large in torque, long in service life, high in safety and capable of saving energy and protecting the environment.

The invention discloses a nickel alloy wire. An alloy comprises the following components in percentage by mass: 7-10% of Si, 2-3% of Cu, 1-2% of Mg, 0.1-0.2% of Ag, 0.4-0.6% of Mo, 0.01-0.02% of Ti, 0.02-0.03% of La, 0.01-0.03% of Co, 0.01-0.02% of Mn, 0.03-0.04% of Sn, and the balance of nickel and inevitable non-metallic inclusions. The invention also provides a corresponding preparation method. Products are novel and unique new products with a scientific and reasonable formula, not only have an outstanding intrinsic quality, but also have a good appearance quality; and the effect of easy operation and the capability of improving the working efficiency, reducing the pollution, and saving the cost can be achieved.

The invention relates to the field of metal machining, in particular to a manufacturing method of a continuous-cast steel billet with the optimized surface quality. The manufacturing method includes transferring molten steel with the specific elements into a middle ladle, and enabling the molten steel to flow into a crystallizer via a submerged nozzle, wherein a distance between the submerged nozzle and an outer arc side of the crystallizer is greater than that between the submerged nozzle and an inner arc side of the crystallizer. The manufacturing method has the advantage that the solidifying thickness of the molten steel in the crystallizer is evener through change on a nozzle position in the prior art, and the stress gradient of a billet shell caused by thermal contraction is decreased, so that longitudinal recesses or cracks formed in the surface of the billet shell are avoided.

The invention discloses a novel water-based adhesive for polyester filament canvas shoes and a preparation method thereof. A combined body of natural latex and an environment-friendly adhesive is usedas a main body material, and molecules of the latex are basically kept in the original shape, so that the higher initial adhesion capacity of the novel water-based adhesive for the polyester filamentcanvas shoes is ensured; asthe rubber polymer does not change, the vulcanized and cross-linked adhesive and an adhered adhesive part form a high-strength unified body and have relatively high final adhesion strength, so that the requirement on the surface viscosity of the adhered adhesive part is not high, the requirement on the temperature of the adhered adhesive part is low, and the requirementof an adhered adhesive material on the thermal insulation property is reduced. Due to the fact that the initial bonding force and affinity with the adhered adhesive part are improved, plastic flowingof molecules on the bonding surface of the adhesive part in the initial stage of high-temperature vulcanization is prevented, the adhesive part and the upper are firmly bonded together through the adhesive, and therefore the three quality problems of lace delaminating, base cloth disengaging and outsole elastic edges of the rubber shoes are effectively solved.

The invention discloses a preparation method of a high-performance black corundum abrasive. The preparation method comprises the following steps: (1) proportioning of raw materials: selecting 43-51 parts of high-alumina bauxite, 48-56 parts of high-iron bauxite and 1-2 parts of magnesium oxide as raw materials, respectively crushing the selected raw materials, and then mixing the raw materials through an automatic batching system to enable the mixed raw materials to meet a proportion requirement; (2) electric melting: adding the raw materials mixed in the step (1) into an electric arc furnace for electric melting to prepare liquid black corundum, and then cooling the liquid black corundum to obtain a semi-finished blocky black corundum product; and (3) preparation of a finished product: subjecting the semi-finished blocky black corundum product obtained after electric smelting in the step (2) to crushing, impurity removal, cleaning and sorting through a jaw crusher and a ball mill so as to obtain a finished black corundum abrasive product. According to the invention, the technical problem of increasing the performance of the common-grade black corundum abrasive within limited cost is solved, a traditional technical concept in the field is broken through, and the inherent performance of a common-grade black corundum product is greatly improved.