33results about How to "No significant increase in production costs" patented technology

The invention relates to the fields of composite materials and medical equipment, in particular to a method for preparing high-strength and high-isolation condoms by utilizing a modified graphene / latex composite material. The method comprises the following steps: preparing modified graphene into a stable dispersion liquid, then carrying out direct recombination after latex compounding and prevulcanization curing period, or vulcanization recombination is finished at the same time in the period, and finally a compound rubber emulsion is finally obtained. After the curing of the compound rubber, the condom product is prepared by adopting a mold impregnating method. Compared with existing products, the grapheme compounded condom prepared by the invention has the advantages that the permeance of small-size viruses can be effectively blocked and the performance indexes such as tear resistance, blasting volume and ultimate elongation under same thickness are obviously improved. The method disclosed by the invention has the advantages of scientific principle, obvious characteristics, non-toxicity, innocuity, stable performance, high matching degree with prior art for condom production and the like.

The invention discloses a catalyst used for preparing trifluoroethylene by hydrogenating and dechlorinating trifluorochlor oethylene, comprising a first catalyst, a second catalyst and an assistant, wherein the first catalyst is one or combination of more than two of palladium, ruthenium and platinum, the second catalyst is Fe and / or Cu, and the assistant is selected from one or combination of more than two of V, Bi and K. The invention also discloses an activated carbon carrier preprocessing method of the catalyst for preparing the trifluoroethylene by hydrogenating and dechlorinating the trifluorochlor oethylene and an application of the prepared catalyst in trifluoroethylene preparation. The catalyst prepared by the method disclosed by the invention has the advantages of high catalytic activity and catalyst efficiency, good trifluoroethylene selectivity, strong reaction stability, mild reaction condition, simple catalyst preparation and processing process and the like.

The invention discloses a production method of composite phosphate. The production method includes: using monomer phosphate or physically-mixed phosphate as the raw material, controlling the temperature to be at 200-40 DEG C, adding a certain proportion of water under a stirring state, controlling the temperature of the phosphate in different ranges, and using the hydrolysis of the phosphate to produce the composite phosphate of different proportions and properties according to different water adding proportions and temperatures. The production method has the advantages that the dissolving speed of the produced composite phosphate can reach the dissolving speed of chemical mixing, caking of the produced composite phosphate in water is avoided, the high-concentration composite phosphate is fast in dispersing, and the normal-concentration composite phosphate is fast in dissolving; the phosphate production cost of factories is not increased evidently, and only the cooling equipment of an original phosphate production line needs to be slightly modified.

The invention discloses a power lithium battery tab thermal composite molding process. The process specifically comprises the following steps: step one, preparing a metal conductor strip; step two, preparing tab tape; step three, heating the prepared metal conductor strip, and feeding the prepared tab tape to a surface of the heated metal conductor strip to perform thermal-compression, and stopping heating the metal conductor strip after the thermal-compression is finished. The tab obtained through the power lithium battery tab thermal composite molding process is stable in structure, and thethermal conductivity and the insulativity exceed the like products on the market, and the production cost is free from great increasing.

The invention relates to a corundum cooling medium which is a silicon carbide ball, carbon fiber-enhanced silicon carbide ball or graphite fiber-enhanced silicon carbide plate. The invention further provides a preparation method of the carbon fiber-enhanced silicon carbide ball or the graphite fiber-enhanced silicon carbide plate, an application of the silicon carbide ball, the carbon fiber-enhanced silicon carbide ball or the graphite fiber-enhanced silicon carbide plate used as the corundum cooling medium in the cooling of the corundum, a corundum quick cooling method, an obtained corundum abrasive material, and a mould made by the corundum abrasive material. According to the corundum cooling medium, the method and the application, the corundum is cooled by the corundum cooling medium, the cooling is quick, no potential safety hazard exists, the investment is little, and the cost is reasonable, an obtained corundum product is small in crystal size, and the product cost of the obtained corundum product can not be obviously increased, so that the corundum cooling medium, the method and the application are suitable for large-scale popularization and application.

A piezoelectric substrate is provided with interdigital transducer electrodes including a first electrode layer, a second electrode layer, and a third electrode layer that is principally made of aluminum. The piezoelectric substrate has a stepped structure on the surface of the piezoelectric substrate, the stepped structure including terraces each having a width of about 50 nm or less and steps each having a width of a mono-molecular layer (e.g., about 14 ANGSTROM).

A manufacturing process of shoe with fabric upper (10) that is internally provided with a waterproof coating layer (10a) made of plastic material. The process comprises the step of piercing of the upper (10) in order to inject plastic material in an intermediate space (4a) between a core (1) of a mold (S) and the upper (100).

The invention provides a thermal treatment method for inhibiting and eliminating a banded structure in a low-alloy and heatproof steel tube. The method comprises the following steps: sampling low-alloy and heatproof steel tubes which are subjected to smelting and rolling, performing metallographic structure observation and grading the banded structure; machining the low-alloy and heatproof steel tubes which are rolled in a thermal mode to manufacture a cylindrical sample with the diameter of 3mm and the length of 12mm, and welding a K-type thermocouple in a central position along the length direction of the cylindrical sample; heating at a warming speed from the temperature of 20-50 DEG C to 880-910 DEG C and performing heat preservation for 8 minutes to ensure that the cylindrical sample structure is completely austenitized; cooling the cylindrical sample at the cooling speed of 20-100 DEG C / S by jetting nitrogen at a high speed; performing air cooling on the cylindrical sample till reaching the room temperature. The method has the beneficial effects that by using the thermal treatment method, the structure after thermal treatment is a ferrite pearlite, and the banded structure formed in the hot-rolling formation process can be effectively eliminated, and the increase of the production cost is avoided, so that the method is an economic and effective treatment method.

A shafting-free outer rotor permanent magnetic synchronous motor capable of reducing a slot effect belongs to the field of motors and solves the problem that motor performance is reduced due to the fact that the existing permanent magnetic synchronous motor with a slot structure has the slot effect. The shafting-free outer rotor permanent magnetic synchronous motor comprises a stator casing, a stator and a rotor. The stator casing is arranged on an inner circle surface of the stator, the stator is arranged inside the rotor, and an even air gap exists between the stator and the rotor. The stator comprises a stator yoke, stator slots, stator windings and slot wedges. A plurality of stator slots are arranged inside the annular stator yoke along the peripheral direction evenly, the stator windings are embedded in the stator slots, and the slot wedges are arranged between openings of the stator slots and the stator casing and used for fixing the stator windings. The rotor comprises a rotor yoke and a plurality of rotor magnetic poles. A plurality of rotor magnetic poles are arranged on an inner circle surface of the rotor yoke evenly.

The invention provides a modified soy protein adhesive and a preparation method thereof. A preparation process is as below: (1) adding the defatted soybean flour, water, sodium dodecyl benzene sulfonate and alkali into a reactor, stirring for 5 min, adding ethylene glycol and silicone oil, rising the temperature to 90 DEG C, insulating and stirring for 3 h, cooling, and discharging the materials, so as to obtain a soybean protein pre-hydrolyzed solution; and (2) before usage, adding a homemade or purchased melamine-formaldehyde resin into the soybean protein pre-hydrolyzed solution as a crosslinking agent for the soybean protein, and uniformly mixing at room temperature. The modified soybean protein adhesive by the invention has simple technology, simple and flexible operation and moderate cost. The adhesive has excellent water resistant property, and a prepared poplar glued board test piece has bond strength no less than 0.7 MPa after impregnation in water at (63+ / -3) DEG C for 3 h, shows no glue phenomenon, and has reached the requirements of national standard type II GB / T9846.3-2004 for glued boards.

The invention discloses a power lithium battery tab thermal composite molding process, which specifically includes the following steps: step 1, preparing metal conductor strips; step 2, preparing tab glue; step 3, heating the prepared metal conductor strips, The prepared tab glue is fed to the surface of the heated metal conductor strip for thermocompression bonding, and the heating of the metal conductor strip is stopped after the thermocompression bonding is completed. The tab thermal composite molding process of the power lithium battery of the present invention has a stable tab structure, thermal conductivity, and insulating shoes that exceed similar products on the market, and the production cost does not increase significantly.

The invention discloses a preparation method for modified polyethylene double-wall l corrugated pipe drying agent. The preparation method comprises the following steps: an expanded vermiculite processing step, wherein the expanded vermiculite is processed into vermiculite powder of 800-1200 meshes by a jet mill; and the vermiculite powder is added with 1%-10% of oleic acid, 1%-5% of EVA (Ethylene-Ethyl Acetate) resin particles or EVA emulsion and 5%-15% of polyethylene resin particles in percentage by weight; a mixing and heating-up process, wherein the formed mixture is put to a mixer with the speed of 200-260 revolutions / minute for mixing, stirring, fractioning and heating up to 40 DEG C to 60 DEG C; a water-absorbing composite forming step, wherein the mixture is added with 3%-17% of sodium silicate powder in percentage by weight, the mixture added with the sodium silicate powder is put to the mixer with the speed of 200-260 revolutions / minute for stirring and mixing until the temperature is 80 DEG C to 110 DEG C, and then cooled to 40-45 DEG C; and a pelletizing step. The drying agent disclosed by the invention has the advantages that the water absorption capability is strong, the materials are easy to prepare, the price is low, the energy consumption in the process is less, the investment is small, and the operation is simple.

The invention discloses a dual-component polyurethane waterproof paint, a B component, a B component stabilizing agent and a preparation method. The preparation method of the B component stabilizing agent of the dual-component polyurethane waterproof paint comprises the following steps: 1)mixing 30-35% of polyether glycol, 16-20% of plasticizer and 5.0-7.0% of toluene diisocyanate and reacting to obtain a material liquid A; and 2)mixing the material liquid A, 0.01-0.02% of catalyst and 40-45% of diluent, reacting until the NCO% content is 1.0-1.05% to obtain the product. The B component stabilizing agent can greatly improve the stability of the B component, deposition generation can be effectively reduced, and the expiration date of the paint is prolonged. The B component enables long-term stabilization and storage under high temperature and low temperature. The cost production of the dual-component polyurethane waterproof paint is not obviously increased, and the product comprehensive property is high. The preparation method of the invention has the advantages of stable technology, easy realization of industrial production, low cost and environmental protection.

The invention provides a thermal treatment method for inhibiting and eliminating a banded structure in a low-alloy and heatproof steel tube. The method comprises the following steps: sampling low-alloy and heatproof steel tubes which are subjected to smelting and rolling, performing metallographic structure observation and grading the banded structure; machining the low-alloy and heatproof steel tubes which are rolled in a thermal mode to manufacture a cylindrical sample with the diameter of 3mm and the length of 12mm, and welding a K-type thermocouple in a central position along the length direction of the cylindrical sample; heating at a warming speed from the temperature of 20-50 DEG C to 880-910 DEG C and performing heat preservation for 8 minutes to ensure that the cylindrical sample structure is completely austenitized; cooling the cylindrical sample at the cooling speed of 20-100 DEG C / S by jetting nitrogen at a high speed; performing air cooling on the cylindrical sample till reaching the room temperature. The method has the beneficial effects that by using the thermal treatment method, the structure after thermal treatment is a ferrite pearlite, and the banded structure formed in the hot-rolling formation process can be effectively eliminated, and the increase of the production cost is avoided, so that the method is an economic and effective treatment method.

The invention discloses a ceramic body reinforcing agent, which comprises the following ingredients in parts by weight: 3-15 parts of carboxymethyl cellulose, 13-25 parts of sodium tripolyphosphate, 4-12 parts of sodium silicate, and 5-20 parts of bentonite 40-73 parts and wollastonite. The ceramic body strengthening agent of the present invention can significantly improve the wet body strength of the ceramic body with high content of barren materials; it can be ball milled together with the ceramic green body raw materials, so that the raw materials can be fully mixed evenly, thereby ensuring the uniformity of the wet body strength ; and the raw materials are easy to obtain, low in cost, and environmentally friendly, and do not significantly increase the production cost of ceramic products. At the same time, its addition and use process is very simple, and industrial production can be realized. At the same time, the invention also provides a preparation method and application of the ceramic body reinforcing agent.

The invention belongs to the technical field of food science and discloses a method for promoting Dunaliella to accumulate carotenoids and β-carotene by using β-ionone. The method: the Dunaliella cells to be induced are induced and cultured in a medium containing β-ionone, the carotenoids and the β-carotene in the carotenoids are accumulated in the algae cells, and then the pigment is extracted; The induced Dunaliella cells are Dunaliella cells in logarithmic growth phase and / or stationary phase. The invention is simple, easy to implement, low in cost, can significantly increase the output of total carotenoids and β-carotene, and Dunaliella is extremely salt-tolerant single-celled green algae with simple culture conditions and is not easy to be polluted by other microorganisms, which is beneficial to Large-scale breeding meets the standards of industrialized large-scale production.

A method of manufacturing a shoe having an inner waterproof textile upper (10) with a waterproof covering layer (10a) made of plastic material inside. The method comprises the step of piercing the upper (10) to inject plastic material into the intermediate space (4a) between the core (1) and the upper (10) of the mold (S).

The invention relates to a short fiber spinning method which comprises a cotton blending process, a coiling process, a slivering process, a drawing process, a combing process, a roving process and a fine yarn spinning process. The short fiber spinning method is characterized by further comprising a maintenance process positioned between the roving process and the fine yarn spinning process, wherein the maintenance process means that rough yarns obtained by the roving process are put in an airtight space, and steam is injected into the airtight space to improve moisture content of fibers in the rough yarns and moisture content of capillaries among the fibers. By means of the short fiber spinning method, the maintenance process is added between the roving process and the fine yarn spinning process, and the rough yarns are wetted preliminarily before further processing. In the yarn spinning process, the rough yarns are kept to be wet in the whole process of processing the rough yarns into fine yarns by means of a spraying device arranged on a fine yarn machine. Therefore, the moisture content in different stages of short fiber spinning is increased, internal stress among fiber aggregation in different stages of spinning is eliminated, cohesive force among the fibers is increased, and quality indexes of the yarns are increased. The short fiber spinning method can be widely applied to the short fiber spinning process.