32results about How to "Not prone to wire breakage" patented technology

The invention relates to a rinsing and hot drawing device for fibre tow spinning. The device comprises a box body, a heat source supply device arranged outside the box body, a plurality of transmission devices which are fixed on the box body and arranged in the box body and a waste heat collecting device arranged on the top of the box body, wherein each transmission device contains a transmission shaft and a transmission roller sleeved on the transmission shaft; the transmission roller is prepared from a porous material; the transmission shaft is of a hollow structure; a plurality of liquid outlet holes are uniformly distributed on the side wall of the transmission shaft; and the heat source supply device is communicated with a plurality of transmission shafts respectively. By adopting the rinsing and hot drawing device, the technical problems that the existing rinsing and hot drawing device for fibre tow spinning damages the fibre tow and has low drawing efficiency can be solved. The invention provides the rinsing and hot drawing device for fibre tow spinning which can realize that the high strength of the carbon fibre precursor tow can be ensured and the filaments can not be broken easily under a large drafting force.

The invention discloses a preparation method of a PVDC (polyvinyl dichloride) composition for spinning. The preparation method of the PVDC composition for the spinning comprises the following steps of carrying out a polymerization reaction on the following raw materials in parts by weight: 49 to 60 parts of deionized water, 20 to 30 parts of vinylidene chloride monomers, 3 to 9 parts of vinyl chloride monomers, 0.06 to 0.3 parts of initiator, 0.02 to 0.04 part of pH (potential of hydrogen) value buffer conditioning agent and 0.01 to 0.05 part of dispersing agent, after the reaction is carried out for 25 hours to 35 hours, terminating the polymerization reaction, separating out residual monomers in a vacuum manner, and cooling, discharging, centrifuging and drying an obtained material; adding 0.5 to 0.8 part of plasticizer and 0.05 to 0.2 part of lubricating agent into the dried material, and mixing and curing an obtained mixture, so as to obtain a PVDC composition product for the spinning. The PVDC composition prepared by the preparation method of the PVDC composition for the spinning has favorable heat stability and spinning processing performance.

The invention provides circular loom magnetic shuttle power assistance unit, comprising the following solving scheme: the shuttle is settled in the orbit of a circle; the pushing bodies is connected with principal axis through handspikes; in the rump of the shuttle there are permanent-magnets which are fixed in the pushing bodies and the two poles of the permanent-magnets nearby are of the same homonymy; there is a nonmagnetic lead-thread frame is equipped outside of the shuttles and in the rump of the shuttle there is an aluminium alloy back bracket, and upon the back bracket there is a eccentric fixed wheel. The invention is simple in the structure, convenient to use, hard to see the phenomenon of silk breaking, improves the efficiency of loom, and suits for any type of looms.

The invention discloses a dragging twist-resistant metallic shield flexible cable for mining equipment. The flexible cable comprises a protective sleeve, a plurality of power wire cores and a plurality of ground wire cores, high-strength fibers and control wire cores, wherein each control wire core comprises a conductor, a high-elasticity rubber insulation layer and a heat-resisting thin slip band layer; the conductor is wrapped with the high-elasticity rubber insulation layer and the heat-resisting thin slip band layer; the high-elasticity rubber insulation layer is located between the conductor and the heat-resisting thin slip band layer; each power wire core comprises a conductor which is wrapped with a heat-resisting semiconductor nylon shield strip layer, an insulation layer and a heat-resisting semiconductor nylon shield strip, metal and fiber fixing weaving layer sequentially from inside to outside; each ground wire core comprises a conductor and a semiconductive elastic rubber layer, and the conductor is wrapped with the semiconductive elastic rubber layer; and outer sides of the plurality of the power wire cores and the plurality of the ground wire cores, the high-strength fibers and the control wire cores are wrapped with the protective sleeve, so that a whole is formed. The dragging twist-resistant metallic shield flexible cable is good in flexibility, tensile resistance and twist resistance and longer in service life.

The invention relates to a method for preparing spandex fibers with low breaking rate, in particular to a method for manufacturing spandex by introducing a blend solution of an abrasion-resistant agent and a flow promoter into a polyurethane urea spinning solution; the method includes: 1) blending and dissolving the abrasion-resistant agent and the flow promoter in an organic solvent to obtain a blend solution A; 2) adding the blend solution A into the polyurethane urea spinning solution B to prepare a spinning dope C, and performing spinning and winding with the spinning stock solution C. Themethod herein is simple and convenient to implement and can be widely applied to spandex fibers of different varieties, and the breaking condition of the prepared spandex fibers is obviously alleviated.

The invention discloses a high-speed environmental-friendly tinning machine and a smooth-transition method. The high-speed environmental-friendly tinning machine comprises an emptying device, a guiding device, an acid pickling device, an ultrasonic cleaning device, a high-temperature annealing and drying device, a tin furnace and a winding device connected sequentially, wherein the guiding deviceis provided with a first wire passing area; the acid pickling device is provided with a second wire passing area; the ultrasonic cleaning device is provided with a third wire passing area; the high-temperature annealing and drying device is provided with a fourth wire passing area; the tin furnace is provided with a fifth wire passing area; and the first, the second wire passing area, the third wire passing area, the fourth wire passing area and the fifth wire passing area coexist on one horizontal plane and are matched to form a linear wire passing area. According to the smooth-transition method, a copper wire moves smoothly, and a tin liquid level is improved. According to the high-speed environmental-friendly tinning machine and the smooth-transition method provided by the invention, the production speed can be improved, the cost is reduced, the phenomenon of wire fracture cannot occur easily, the production quality is stable, the service life is long, the method is simple, and theresistance to copper wire movement can be greatly reduced.

The invention provides an antistatic bamboo charcoal fiber for underwear, and belongs to the field of textiles. A preparation method of the fiber includes a carbonization process for high temperaturecarbonization of moso bamboos, a homogenization process for bamboo charcoal obtained after carbonization, a preparation process of a spinning solution, and a spinning process. The bamboo charcoal fiber obtained by the spinning process has dry tensile strength of 2.0-4.5 cN / dtex and wet tensile strength of 1.8-3.8 cN / dtex. The bamboo charcoal fiber can prevent surface charge accumulation, and has enhanced antistatic effect and antistatic endurance, excellent shaping durability and shape retention, reinforced heat and washing resistance, and improved wearing comfort; the preparation method can improve the tensile strength of the fiber, especially the wet tensile strength, breakage and blockage can be prevented during spinning, damage to the fabric due to exposure to the blazing sun can be alleviated, and the fiber can be resistant to scrubbing and twisting and does not deform, so that the spinnability of the fiber and the quality of fiber products are improved.

The invention discloses a PET color master batch for water-based superfine fibers. The PET color master batch comprises the following raw materials in percentage by mass: 30-80% of a carrier, 10-50% of a coloring agent, 3-15% of a dispersing agent, 3-15% of a compatibilizer, 3-10% of a slip agent, 3-20% of an antistatic agent, 0.5-20% of modified inorganic filler and 0.1-1% of an antioxidant. By adopting the PET color master batch for water-based superfine fibers, the performances of superfine fiber spinning, non-woven fabric processing and the like are guaranteed, and the problems of coloringand color migration of a final product are solved. The PET color master batch for water-based superfine fibers is low in cost, strong in coloring agent and carrier effect, good in coloring effect, simple in production and preparation process, small in environmental pollution, good in compatibility and liquidity in the spinning process and not prone to yarn breakage, and the final product is stable in hue and free of color migration.

The invention relates to the technical field of 3D printers, in particular to a 3D printer for printing carbon fibers, including a frame body, a printing platform, a mixing box, a discharge end, a lifting platform, an electric heating layer, a conveyor belt, and a resin liquid storage box And the control cabinet, the X-axis guide rail, the Y-axis guide rail and the Z-axis guide rail are installed on the frame body, the X-axis guide rail and the Y-axis guide rail are vertically intersected on the horizontal plane, and the printing platform is located on the plane where the X-axis guide rail and the Y-axis guide rail are located, and The printing platform can reciprocate along the X-axis guide rail and the Y-axis guide rail. The lifting platform is located on the Z-axis guide rail, and the lifting platform can reciprocate along the Z-axis guide rail. A mixing box is installed on one side of the middle part. In the present invention, a conveying trough is provided in the middle part of the conveyor belt, and the carbon fiber filaments can be clamped in the conveying trough for conveying, which is convenient for continuous feeding and is not prone to broken wires.

The invention discloses a double-main-filament primary-assistant triple-helix energy-saving lamp filament and a manufacturing method thereof, which is spirally wound by a filament secondary winding body (4), and the filament secondary winding body (4) consists of The filament primary winding body (3) is helically wound; the filament primary winding body (3) is composed of two main tungsten wires (1) and molybdenum wire (7) and two main tungsten wires (1) ) and one or more auxiliary tungsten wires (2) on the molybdenum wire (7). The invention has the characteristics of higher reserves of electronic powder, stronger bombardment resistance, high thermal effect, faster temperature rise and long service life, and the winding speed is faster during production, the winding efficiency is higher, and the winding is not easy to cause broken wires. The product qualification rate is high.

The invention discloses a method for manufacturing a large cross-section and high-resolution flexible optical fiber image transmission bundle. An optical fiber monofilament with two claddings is drawn by a three-crucible or rod-tube method. The rigid optical fiber image transmission unit body with a regular polygonal cross-section is drawn by wire drawing, and the hard optical fiber image transmission bundle with a large cross-section is obtained after the second wire arrangement of the unit body, and the hard optical fiber image transmission bundle is thermally fused at the end Afterwards, the middle part is placed in an acid solution to dissolve the acid-soluble layer to obtain a flexible optical fiber image transmission bundle. Using the manufacturing method of the present invention can produce a circular section or a regular polygonal section, the size of the regular hexagonal section is 8.8 mm, the size of the square section is more than 5 mm, the length can reach 6 meters, and the resolution can reach up to 191 lp / mm. High resolution flexible fiber optic imaging bundle.

The invention discloses a production technology of a copper braided wire. The production technology comprises the step of arranging a pay-off stand: bobbin copper wires are fixed on the pay-off stand,the bobbin is released and the copper wire connector penetrates through a sliding wheel; the step of wire scutching: the copper wires are pulled out of the pay-off stand to be wound on a spindle for3-4 circles in a clockwise way, all the copper wires are adjusted to be on the same plane and consistent in degree of tightness and wire scutching is performed; the step of arranging the spindle: thespindle after processing of the step of wire scutching is arranged on a braiding machine, the copper wires penetrate through the middle of the spindle to be pulled to a driving wheel and then compressed by a rolling wheel in the middle of the driving wheel; the step of gear adjustment: the power is disconnected and the size and the tooth space of the gear are adjusted; the step of braiding: the braiding machine is started to perform braiding, and the thickness, the uniformity and the appearance of the braided wire are inspected; and the step of wire leading: the braided copper braided wire isled to a rubber roller to perform coiling. With application of the production technology of the copper braided wire, the phenomenon of wire fracturing is not liable to occur in the production process,and the copper braided wire obtained through braiding is uniform without the situation of burrs or wire fracturing.

The invention provides a woven type venae cava filter. The woven type venae cava filter is characterized by comprising a filter part, a fixing part and connecting parts, wherein the filter part, the fixing part and the connecting part are woven together and distributed in sequence from a heart near end to a heart far end; the filter part comprises N1 Y-type woven structures distributed in the circumferential direction; the fixing part comprises N1 ridges distributed in the circumferential direction; the connecting parts are of conical woven structures which are formed by extending directly the N1 ridges of the fixing part and ligating by second steel bushings or conical woven structures which are formed by extending the N1 ridges of the fixing part, then weaving, and then ligating by the second steel bushings. Another technical scheme of the invention provides a weaving method of the woven type venae cava filter. The venae cava filter, provided by the invention, can intercept larger size internal clots in the pulmonary embolism dangerous period, prevents venae pulmonales embolism, keeps smooth for a long term by shear force, can be taken out by an interventional operation after passing the pulmonary embolism dangerous period, and also can remain in a patient's body for a long term.

The invention discloses a dragging twist-resistant metallic shield flexible cable for mining equipment. The flexible cable comprises a protective sleeve, a plurality of power wire cores and a plurality of ground wire cores, high-strength fibers and control wire cores, wherein each control wire core comprises a conductor, a high-elasticity rubber insulation layer and a heat-resisting thin slip band layer; the conductor is wrapped with the high-elasticity rubber insulation layer and the heat-resisting thin slip band layer; the high-elasticity rubber insulation layer is located between the conductor and the heat-resisting thin slip band layer; each power wire core comprises a conductor which is wrapped with a heat-resisting semiconductor nylon shield strip layer, an insulation layer and a heat-resisting semiconductor nylon shield strip, metal and fiber fixing weaving layer sequentially from inside to outside; each ground wire core comprises a conductor and a semiconductive elastic rubber layer, and the conductor is wrapped with the semiconductive elastic rubber layer; and outer sides of the plurality of the power wire cores and the plurality of the ground wire cores, the high-strength fibers and the control wire cores are wrapped with the protective sleeve, so that a whole is formed. The dragging twist-resistant metallic shield flexible cable is good in flexibility, tensile resistance and twist resistance and longer in service life.

The invention discloses a cable solder wire for a CMT welding system. The solder wire comprises a central solder wire. The outer side of the central solder wire is provided with a spiral solder wire which is twined tightly around the central solder wire in a spiral manner. The outer side of the spiral solder wire is provided with a protection ring. The inside of the spiral solder wire is provided evenly with 4 subordinate solder wire groups. The subordinate solder wire groups are tangentially arranged. The inside of each subordinate solder wire group is provided with a first solder wire, a second solder wire, a third solder wire and a fourth solder wire. The fusion depth in the welding operation is deep. This structure can reduce the quantity of overlapping welding seams layers and can fundamentally increase the welding efficiency, reduce the production costs with negligible splashes. The high mechanical property of the welding seam and the tight binding structure of the solder wire stabilize the solder wire feeding process, enhances the welding property of the cable solder wire and makes the CMT welding system to render a better soldering effects.

The present invention relates to a method for preparing spandex fiber with a low breakage rate, and more particularly, to a method for manufacturing spandex by introducing a blended solution of an anti-wear agent and a flow promoter into a polyurethaneurea spinning solution, 1) By blending and dissolving the anti-wear agent and the flow promoter in an organic solvent, a blended solution A is prepared; 2) the above-mentioned blended solution A is added to the polyurethaneurea spinning solution B to prepare a spinning dope C, Spinning and winding of the above-mentioned spinning dope C were carried out. The manufacturing method has a simple and convenient implementation process, and can be widely applied to different varieties of spandex fibers, and the situation of the prepared spandex fibers being broken is obviously reduced.

The invention discloses a preparation method of a PVDC (polyvinyl dichloride) composition for spinning. The preparation method of the PVDC composition for the spinning comprises the following steps of carrying out a polymerization reaction on the following raw materials in parts by weight: 49 to 60 parts of deionized water, 20 to 30 parts of vinylidene chloride monomers, 3 to 9 parts of vinyl chloride monomers, 0.06 to 0.3 parts of initiator, 0.02 to 0.04 part of pH (potential of hydrogen) value buffer conditioning agent and 0.01 to 0.05 part of dispersing agent, after the reaction is carried out for 25 hours to 35 hours, terminating the polymerization reaction, separating out residual monomers in a vacuum manner, and cooling, discharging, centrifuging and drying an obtained material; adding 0.5 to 0.8 part of plasticizer and 0.05 to 0.2 part of lubricating agent into the dried material, and mixing and curing an obtained mixture, so as to obtain a PVDC composition product for the spinning. The PVDC composition prepared by the preparation method of the PVDC composition for the spinning has favorable heat stability and spinning processing performance.

The invention relates to a rinsing and hot drawing device for fibre tow spinning. The device comprises a box body, a heat source supply device arranged outside the box body, a plurality of transmission devices which are fixed on the box body and arranged in the box body and a waste heat collecting device arranged on the top of the box body, wherein each transmission device contains a transmission shaft and a transmission roller sleeved on the transmission shaft; the transmission roller is prepared from a porous material; the transmission shaft is of a hollow structure; a plurality of liquid outlet holes are uniformly distributed on the side wall of the transmission shaft; and the heat source supply device is communicated with a plurality of transmission shafts respectively. By adopting the rinsing and hot drawing device, the technical problems that the existing rinsing and hot drawing device for fibre tow spinning damages the fibre tow and has low drawing efficiency can be solved. The invention provides the rinsing and hot drawing device for fibre tow spinning which can realize that the high strength of the carbon fibre precursor tow can be ensured and the filaments can not be broken easily under a large drafting force.

An adhesive used for electronic grade glass fiber yarn and a preparation method thereof belong to the technical field of electronic grade glass fiber. The following raw materials are included in parts by weight: 1-2 parts of ethyl cellulose, 6-8 parts of ethanol aqueous solution, 2-3 parts of sodium carboxymethyl cellulose, and 0.5-1.0 parts of dibutyl phthalate. The preparation method comprises the following steps: 1) mixing and stirring ethanol and ethyl cellulose to obtain an ethyl cellulose solution; 2) mixing and stirring ethanol and sodium carboxymethyl cellulose to obtain a sodium carboxymethyl cellulose solution; 3) ) Pour the sodium carboxymethyl cellulose solution into the ethyl cellulose solution, and stir for 2 to 3 hours to obtain a mixed solution; 4) Add dibutyl phthalate to the mixed solution in parts by weight, and stir evenly to obtain an adhesive agent. The adhesive used for the electronic grade glass fiber yarn of the present invention has strong adhesive force and high temperature resistance, and the joint is not easy to harden after bonding, and is not easy to change color and remain.

The invention discloses a filter membrane assembly with one ends of a membrane component and a membrane filament being movable and belongs to the technical field of environment-friendly sewage treatment. A membrane unit is arranged in a framework and is immersed in sewage in a MBR aerobic biochemical tank, and includes the membrane component, a framework, a membrane filament horizontal pipe or vertical pipe, a fixed horizontal plate or vertical plate, a moving system and an aeration system. In the invention, one end of the membrane component is arranged in a rotation manner, so that the part,at the rotation position of the membrane component, of the membrane filament is loose and movable; during air purification, the membrane filament at the rotation position can swing and accumulation ofpollutants is avoided; by means of vertical or transversal movement of the moving system, the looseness of the membrane filament is kept during the air purification, and the membrane filament can swing at a large amplitude, so that the pollutants are not liable to accumulate at the membrane bundle and the two ends of the membrane bundle in the filter membrane assembly. During water production operation after the air purification, by means of vertical or transversal reverse movement of the moving system, the membrane filament is tensioned, and the swing amplitude of the membrane filament is low, so that a problem of filament breaking can be solved.