35results about How to "No wire breakage" patented technology

The invention provides a preparation method of a circular truncated cone-shaped side net for a semi-submersible aquaculture platform. The preparation method comprises anti-fouling monofilament bundlepreparation, anti-fouling net sheet preparation, and circular truncated cone-shaped side net preparation. Preparation raw materials comprise PP resin, dioctyl phthalate, polyethylene glycol fatty acidester, cetyl phosphate, a grafted polyguanidine salt / polyethylene granular material, and surface modified copper-nickel alloy nanoparticles. When the anti-fouling net sheet is prepared, first the antifouling monofilament bundle is twisted to obtain an antifouling strand with the Z twist direction, then three antifouling strands with the Z twist direction are processed into an antifouling twistedthread with the S twist direction, then the antifouling twisted thread with the S twist direction is processed into a net sheet with double dead knots, and finally the net sheet is subjected to heat-setting with 0.22 times the longitudinal breaking strength of the net sheet as a pre-tension. When the circular truncated cone-shaped side net is prepared, knotting is performed in a circulation mannerof "single dead knot-single dead knot-double dead knot-double dead knot", then a net sheet is subjected to fan ring-shaped cutting, edge line and net line assembly, and edge strengthening, then mother lines at the left and right side of a fan ring-shaped net sheet are butted and stitched, and double dead knots are knotted at the same distance when butting and stitching are performed.

The invention discloses a processing method for antifouling melt spinning for a far-reaching-sea net cage or a floating-rope surrounding net. The processing method is characterized by including the steps that UHMWPE powder, nanometer Cu powder, HDPE powder, silicone powder, antioxidant B225, assistant antioxidant DLTP, hydroxy stearic acid, nanoscale white carbon black, nanoscale kieselguhr, nanoscale aedelforsite, ethylene-vinyl acetate copolymer and turpentine assistant are weighed in the formula, then premixed to be poured into a high-speed kneading pot and subjected to high-speed kneading, and a blending-modification UHMWPE material is obtained; the blending-modification UHMWPE material is belted and extruded through a double-screw extruder, the extruded substance is metered through a metering pump additionally arranged through a double-screw outlet and belted and extruded through a spinneret hole, the extruded primary raw silk is cooled and pre-drafted, the pre-drafted silk is subjected to heat setting, then tows are winded through a silk winding machine of a torque motor, and are subjected to silk dividing through a silk dividing machine, and the antifouling melt spinning for the far-reaching-sea net cage or the floating-rope surrounding net is obtained.

The present invention provides a polyphenylene sulfide synthetic hair filament. The synthetic hair filament comprises (A) a polyphenylene sulfide resin; and (B) an inorganic particle quencher additive, wherein said PPS resin melt index range is 60~110, wherein said inorganic quencher additive is added at 0.1~2.0 parts by weight on a 100 parts by weight PPS resin. The synthetic hair filament has a filament size of about 30 to about 80 dtex. The polyphenylene sulfide resin (A) has a p-phenylene sulfide repeating unit above 85% mole. The inorganic particle quencher additive may be of silicon dioxide, talc or the combinations thereof. A suitable inorganic particle quencher additive has an average diameter range of 0.01~3.0 [mu]m.

The invention relates to a heating device of a screw extruder, which comprises heat-conducting oil body arranged inside an interlayer of a machine body shell, a pipeline, a valve and a heat-conducting oil heating device, and is characterized in that the heat-conducting oil heating device comprises a heating oil tank, an electric heater, an oil pump and an electrical control system, wherein the electric heater and the heating oil tank are inserted and connected with a flange and jointed for location; and the electrical control system is controlled by a control cabinet according to the information given by a temperature sensor, an electro connecting pressure gauge and the like. The heating device of the screw extruder has simple structure, convenient maintenance and use, even heating temperature and low equipment investment; and by adopting the heating device, the quality of silk product produced by the extruder is improved, and the electricity is saved by more than 30% compared with the existing way.

The invention discloses a preparation method of steel for a flux-cored wire. According to the preparation method, the low-carbon component design is adopted, on the premise that solution strengthening elements are not increased, the content range of all elements is strictly controlled, the content of inclusions in the smelting and casting process is controlled, the steel quality is pure, meanwhile, the initial rolling temperature, the final rolling temperature and the coiling temperature in the rolling process are controlled, the total rolling reduction rate and rolling reduction of acid rolling, cover recrystallization annealing is used, and flattening rolling is carried out to obtain the cold-rolled steel strip with excellent tensile property.

The invention discloses a starch-modified polylactate monofilament for a fishing net. The monofilament is characterized by comprising the following components in parts by weight: 100 parts of polylactic acid, 1-5 parts of starch, 1-5 parts of nanometer white carbon black and 0.1-0.5 part of antioxygen 1010. The starch-modified polylactate monofilament for the fishing net can be prepared by sequentially performing high-speed kneading, extrusion pelleting, melt spinning and stretching on the corresponding materials. The invention also discloses a preparation method of the starch-modified polylactate monofilament for the fishing net. According to the method provided by the invention, improved toughening modification is performed on the polylactic acid matrix by using the starch, the nanometer white carbon black and the antioxygen 1010, and thus breaking strength and knot strength of the monofilament are effectively improved. The preparation process is also controlled via parameters such as time, temperature and stretching times, influence of the preparation process on the breaking strength and knot strength of the monofilament is reduced, and the condition that the produced monofilament is good in spinnability and comprehensive performance is ensured, and the phenomenon of breaking wires does not occur in industrial production.

The invention provides a processing method of fibers for a grid type purse net fishing net. The processing method is characterized by comprising the following steps: pre-mixing UHMWPE (Ultrahigh Molecular Weight Polyethylene) powder, silicone powder, nano silicon dioxide, HDPE (High-density Polyethylene) powder, a nano titanium dioxide silver-loaded antibacterial agent, an antioxidant B225, hydroxystearic acid, nano-grade diatomite, nano-grade white carbon black, nano-grade wollastonite and an ethylene-vinyl acetate copolymer, which are weighed according to a formula, and pouring the mixture into a high-speed kneading pot and carrying out high-speed kneading to obtain a UHMWPE modified material; fusing and extruding the UHMWPE modified material through a double-screw-rod extruder; fusing and extruding an extruded product from a spinneret hole through a metering pump which is additionally arranged on a double-screw-rod outlet; cooling, pre-stretching and hotly setting extruded freshly formed filaments and winding a fiber bundle through a fiber winding machine which utilizes a torque motor; dividing the fiber bundle into fibers through a fiber dividing machine, so as to obtain the fibers for the grid type purse net fishing net.

Olive green fiber for net weaving to reduce the water resistance of the mesh, using LLDPE resin, PP resin, olive green pigment, auxiliary agent, antioxidant 1010, wire collecting machine, wire dividing machine, mixer, single screw extruder and two drafts Electric heating drawing machine, characterized by mixing PP resin, LLDPE resin, antioxidant 1010, olive green pigment, and white oil additives, stirring with a mixer until the materials are evenly stirred to obtain blended pellets; the blended pellets are passed through a single screw The extruder is melted and extruded, and the melted and extruded as-spun yarn is cooled and pre-drawn by the low-temperature water in the cooling water tank and the first drafting roller, and the pre-drawn yarn is passed through the high-temperature first drafting water bath and the second drafting roller, The high-temperature second drafting hot oil bath and the third drafting roller carry out two hot drafts, and the total drafting ratio is controlled at 9.5 times to 10.2 times, and the fiber tow is rewound by a torque motor winding machine; The machine-separated yarn is olive green fiber for weaving nets that can reduce the water resistance of the mesh.

The invention discloses a machining method for a rope for distant-water fishery. The machining method is characterized by comprising the following steps: pre-mixing UHMWPE powder, silicone powder, an antioxidant 1010, a nano-silver-loaded titanium dioxide antibacterial agent, hydroxy stearic acid, nano-scale white carbon black, antioxidant aid DLTP, ethylene-vinyl acetate copolymer, nano-scale diatomaceous earth and white oil which are weighed according to a formula, and then pouring the mixture into a high-speed kneading pot for performing high-speed kneading to obtain a UHMWPE-modified compound material; melting and extruding the UHMWPE-modified compound material through a double-screw extruding machine; metering an extrudate through a metering pump which is additionally mounted at the outlet of the double-screw extruding machine, and melting and extruding the extrudate from spinning holes; cooling and pre-stretching the extruded as-spun fibres; after the pre-stretched fibres are subjected to heat setting, winding melt-spinning tows by a fibre winding machine using a torque motor; performing primary twisting on the melt-spinning tows to obtain an S-directional rope strand; machining three S-directional rope strands into a Z-twisted rope for the distant-water fishery through a three-strand rope twisting machine.

The invention discloses a polyoxymethylene monofilament for fishing, which is made of the following components in parts by weight: 75-90 parts of polyoxymethylene, 0.5-3 parts of graphene, 7.5-17 parts of thermoplastic polyurethane, and 0.5 parts of antioxidant 3 parts, 0.5-1 part of formaldehyde absorbent, 0.5-1 part of formic acid absorbent, 0.5-1 part of lubricant. The polyoxymethylene monofilament for fishery provided by the present invention uses graphene and thermoplastic polyurethane to blend and then strengthens and toughens the polyoxymethylene. Polyoxymethylene monofilament has the advantages of simple operation process and low production cost. The reinforced and toughened polyoxymethylene monofilament for fishery prepared by the invention can be used in polyoxymethylene rope nets, ocean-going trawls, breeding nets, polyoxymethylene ropes and the like.

The invention relates to a production process of colored stainless steel microwires capable of drawing φ0.018mm stainless steel microwires, which includes a stainless steel wire drawing machine, and raw material selection: select φ0.2mm stainless steel wires as raw materials and draw them to φ0.035mm by the stainless steel wire drawing machine , as a blank wire drawing φ0.018mm~0.015mm; mold matching: a set of multiple wire drawing dies is matched with the forming die, and the inner diameters of the multiple wire drawing dies are 0.030, 0.027, 0.025, 0.023, 0.021, 0.020 , 0.019; Or 0.030, 0.027, 0.025, 0.023, 0.021, 0.020, 0.019, 0.018, 0.017, 0.016, the inner diameter of the forming die is 0.018 or 0.015, and the blank wire is drawn to obtain microfilaments through the above-mentioned cover die and forming die. The microfilaments pass through the high-temperature oxidizing atmosphere at a speed of less than 10 meters per second, and a transparent film with a thickness of tens to hundreds of nanometers is formed on the surface of the microfilaments. Films with different thicknesses and different compositions present different colors.

The invention discloses a processing method for antifouling melt spinning for a far-reaching-sea net cage or a floating-rope surrounding net. The processing method is characterized by including the steps that UHMWPE powder, nanometer Cu powder, HDPE powder, silicone powder, antioxidant B225, assistant antioxidant DLTP, hydroxy stearic acid, nanoscale white carbon black, nanoscale kieselguhr, nanoscale aedelforsite, ethylene-vinyl acetate copolymer and turpentine assistant are weighed in the formula, then premixed to be poured into a high-speed kneading pot and subjected to high-speed kneading, and a blending-modification UHMWPE material is obtained; the blending-modification UHMWPE material is belted and extruded through a double-screw extruder, the extruded substance is metered through a metering pump additionally arranged through a double-screw outlet and belted and extruded through a spinneret hole, the extruded primary raw silk is cooled and pre-drafted, the pre-drafted silk is subjected to heat setting, then tows are winded through a silk winding machine of a torque motor, and are subjected to silk dividing through a silk dividing machine, and the antifouling melt spinning for the far-reaching-sea net cage or the floating-rope surrounding net is obtained.

The invention discloses a polyoxymethylene monofilament, which is made of the following components in parts by weight: 100 parts of polyoxymethylene, 5-25 parts of polyethylene octene copolymerized elastomer, 0.5-10 parts of nano silicon dioxide, anti-oxidation 0.1-1 part of anti-oxidant, 0.1-1 part of antioxidant, 0.1-0.5 part of lubricant. The invention also discloses a polyoxymethylene wear-resistant rope for ecological fences prepared from the polyoxymethylene monofilament. The obtained rope has the advantages of good safety, low price, excellent wear resistance and high breaking strength, and has a certain Antibacterial antifouling effect.

The invention discloses a method for preparing ultra-tensile strength fibers of ultra-high molecular weight polyethylene and isotactic polypropylene blends. In the method, ultra-high molecular weightpolyethylene resins and isotactic polypropylene resins are included. The ultra-high molecular weight polyethylene resins and isotactic polypropylene resins are blended at a certain ratio to form a mixture resin material, and then the resulting mixture resin is placed in an injection molding machine, followed by extrusion and wire drawing, to obtain the ultra-tensile strength fibers of ultra-high molecular weight polyethylene and isotactic polypropylene blends. In the invention, the mixed synthetic resin is easy to prepare fiber filaments, with stable diameter control, uniform thickness, no wire breakage during the preparation process, extremely fast drawing speed, and no deterioration of the environment. The prepared ultra-tensile strength fibers have the tensile strength and modulus not less than the ultra-high molecular weight polyethylene fibers.

The invention provides a hollow fiber ultrafilter membrane, which is obtained by a following mixture after film forming treatment: 14wt%-25wt% of film forming polymer, 0.1wt%-15wt% of meta aramid fiber, 6wt%-10wt of pore forming agent and 59wt%-80wt% of solvent. The invention also provides a preparation method of the hollow fiber ultrafilter membrane. The meta aramid fiber possesses high strength, and enables mutual interpenetration of different polymer chains, is capable of enhancing the mechanical strength of the film forming polymer, so that the hollow fiber ultrafilter membrane possesses high mechanical strength without wire facture, thereby the service life can be prolonged, the daily maintenance frequency can be minimized, and the water treatment cost can be reduced; The meta aramid fiber can increase the hydrophilic performance of the hollow fiber ultrafilter membrane, so that the contamination resistance is good, the flux is high and the attenuation speed is slow. The meta aramid fiber can enhance the heat resistance of the hollow fiber ultrafilter membrane and is more suitable for usage under rigorous condition.

The invention provides a method for preparing a cylindrical box body for deep-sea net cages with antifouling properties, including A, preparation of antifouling net clothing, including preparation of modified high-density polyethylene composite materials, preparation of antifouling monofilament bundles, and antifouling Three aspects of dirty net processing; B. Anti-friction net preparation, made of polyamide net coated with polyurea coating; C. Cylindrical box preparation, including side net processing, bottom net processing and cylindrical box Three aspects of processing. According to the preparation method of the present invention, the cylindrical box body with antifouling performance for deep-sea net cages can greatly improve the antifouling performance of the cylindrical box body under the premise of keeping the strength of the side nets constant. It can also reduce the water resistance of the cylindrical box and the area of ​​fouling organisms, which can greatly reduce the fouling of the cylindrical box and the fish escape accidents caused by broken nets under harsh sea conditions. Green development and modernization.

The invention relates to a manufacturing method of superstrong-bacterium-inhibiting melt-spun filaments for krill fishery or aquaculture purse seines. The manufacturing method is characterized by including: premixing UHMWPE powder, HDPE powder, nano titanium dioxide silver-loaded antibacterial agent, nano titanium dioxide, hydroxy stearic acid, ethylene-vinyl acetate copolymer, silicone powder, antioxidant 1010, nanoscale diatomite, nanoscale white carbon black, assistant antioxidant DLTP and white oil weighed according to the formula, and pouring into a high-speed kneading pot to perform high-speed kneading to obtain a UHMWPE composite material; extruding the UHMWPE composite material with a double-screw extruder in a melt manner, using a measuring pump mounted at the a double-screw outlet to measure the extruded material, extruding the measured material from a spinneret orifice in a melt manner, cooling and pre-drafting the extruded spun filaments, subjecting the pre-drafted filaments to thermoforming, using a filament collecting machine using a torque motor to wind melt-spun tows; separating the melt-spun tows with a filament separator to obtain the superstrong-bacterium-inhibiting melt-spun filaments for the krill fishery or aquaculture purse seines.