361results about How to "Improve extrusion resistance" patented technology

The invention relates to the field of the processing of lithium-ion battery diaphragms, and discloses a preparation method for a microporous diaphragm. The preparation method for the microporous diaphragm includes the following steps: 1) a principal polyolefin resin and an auxiliary additive are uniformly stirred through a stirring mixer to obtain a mixture I; 2) the obtained mixture I is added into an extruder to be uniformly melted and plasticized into a melt; 3) an intermediate diaphragm is prepared from a cast piece of the melt extruded from a die head; 4) annealing treatment is performed on the intermediate diaphragm under bi-directional micro-tension; 5) the annealed intermediate diaphragm is stretched longitudinally to prepare the diaphragm with a microporous structure. The invention further discloses the microporous diaphragm prepared through the method, which consists of the principal polyolefin resin with a weight percentage of 75 to 99.9 percent and the auxiliary additive with a weight percentage of 25 to 0.1 percent. The preparation method disclosed by the invention has the advantage that the lithium-ion battery diaphragm with a uniform structure, the specific microporous structure and high safety performance can be prepared.

The invention discloses an adhesive for a road antiskid layer. The adhesive is formed by mixing 7-10 parts of modified epoxy resin, 3-5 parts of a modified epoxy curing agent and 10-14 parts of talcum powder in parts by weight, wherein the modified epoxy resin is prepared by dissolving a toughening agent, a coupling agent and an anti-aging agent into 80-120 parts of Bisphenol-A epoxy resin and 40-100 parts of soft epoxy resin; the modified epoxy curing agent is prepared by adding a dispersing agent and a defoaming agent into an epoxy curing agent which is 4-8% of the total volume of the Bisphenol-A epoxy resin and the parts of soft epoxy resin. In the prepared method disclosed by the invention, the preparation technology and operation are very simple and convenient and each step is finished at normal temperatures and pressures, so as to bring convenience to industrial production; the prepared adhesive has excellent mechanical property, deformation property, durability and anti-pollution property and can be well bonded with the original road; the adhesive can be well bonded with stones so that the stones are not easy to come off; and the adhesive has low temperature flexibility and does not crack after extrusion.

The invention relates to the processing field of lithium ion battery diaphragms and discloses a high-puncture-strength lithium ion battery diaphragm. The high-puncture-strength lithium ion battery diaphragm consists of 75 to 99.9 weight percent of main body olefin resin and 25 to 0.1 weight percent of an auxiliary additive. The invention further discloses a method for preparing the high-puncture-strength lithium ion battery diaphragm, which comprises the following step: carrying out transverse stretching on a micropore diaphragm which is longitudinally stretched, wherein the traveling speed of the micropore diaphragm is 0.5 to 200 mm/min, the stretch temperature is 100 to 150 DEG C and the stretching multiplying power is 0.5 to 3.0. According to the invention, one step of transversely stretching is added on the basis of one-way stretching in an existing dry method; and by transverse stretching according to a certain ratio, under the condition of not influencing basic performance of the micropore diaphragm (air permeability, porosity and the like), the transverse intensity of the micropore diaphragm is improved, i.e. the puncture-resistant intensity of the micropore diaphragm is improved, so that the diaphragm can be better suitable for assembling of a battery, the micro short circuit problem caused by lithium dendrite puncture is reduced or avoided and safety of the battery is improved.

The invention relates to a separation membrane for a gel-state polymer lithium-ion battery. The separation membrane is prepared by using a separation membrane body made of polypropylene and polyethylene materials as a substrate, and coating a layer of polymer colloid material and inorganic filler coating on the surface of substrate. The thickness of the polymer colloid material and inorganic filler coating is 1-5 mu m, and porosity of the separation membrane subjected to coating treatment ranges from 30%-50%. The polymer colloid material is a mixture composed of polyvinylidene fluoride, vinylidene fluoride-hexafluoropropylene copolymer, polyacrylonitrile and polymethyl methacrylate. The inorganic filler is composed of nanoscale inorganic powder material aluminium oxide, silica or their mixture, and the granularity ranges from 50nm to 200nm. The lithium-ion battery manufactured by the separation membrane is good in safety, short circuit resistance, needling resistance, impact resistance and extrusion resistance of the battery are improved, and the separation membrane for the gel-state polymer lithium-ion battery can be widely used in the field of electromobiles, electric motor cars, electric bicycles, large-medium type energy-storage batteries, photovoltaic stations and the like.

The invention discloses a mining anti-extrusion high-wear-resistance cable comprising a supporting core, a connecting ring, a supporting rod, a cable core, multiple axes, an insulating layer, a jacket layer, an armored layer and a filling body, wherein the jacket layer comprises the following raw materials in parts by weight: 90 parts of butadiene-nitrile rubber, 45 parts of chloroprene rubber, 40 parts of ethylene propylene diene rubber, 35 parts of chlorinated polyethylene, 19 parts of maleic anhydride grafted EVA (ethylene vinyl acetate copolymer), 7.5 parts of zinc oxide, 3 parts of chlorinated paraffin, 5.5 parts of calcium stearate, 7.5 parts of white carbon black, 10 parts of talc powder, 9 parts of active kaolin, 5 parts of antimony trioxide, 4.5 parts of triphenyl phosphite, 4 parts of magnesium hydroxide, 4.5 parts of aluminum oxide, 5.5 parts of an anti-aging agent RD, 3.5 parts of an N,N'-di-sec-butyl-p-phenylenediamine antioxidant, 4 parts of a curing agent DTDM and 5.5 parts of a curing agent PDM. The cable is excellent in extrusion resistance and wear resistance.

The invention discloses a method for preparing a lithium ion battery diaphragm. The diaphragm is an insulated coating arranged on the surface of an anode plate or a cathode plate. The method comprises the following steps of: (1) dissolving 3 to 7 weight parts of polyvinylidene fluoride into 40 to 60 weight parts of organic solvent, adding 1 to 3 weight parts of inorganic powder, and mixing uniformly to obtain slurry; (2) spraying the slurry to the surface of the anode plate or the cathode plate, and placing the anode plate or the cathode plate in a box with the relative humidity of 85 to 98 percent for 2 to 5 minutes; and (3) taking the anode plate or the cathode plate out of the box, and baking the anode plate or the cathode plate at the temperature of between 80 and 150 DEG C till the anode plate or the cathode plate is dried. The method for preparing the diaphragm is simple, easy to implement and convenient for industrialized production; and because inorganic particles are doped in the diaphragm to form a skeleton, the extrusion resistance of the diaphragm is improved, shrinkage of the diaphragm at a high temperature can be prevented, and the safety of the lithium ion battery is improved.

The invention discloses a ceramic composite grinding roller of a medium speed coal grinding mill, which comprises an arc-shaped lining board formed by casting high-chromium alloy, wherein the arc-shaped lining board is provided with a through hole inside which oxide, nitride or carbide ceramic rod is embedded via adhesive, the arc-shaped lining board and the ceramic rod form a metal ceramic composite plate, the metal ceramic composite plate is adhesively connected with a roller core via the adhesive, the metal ceramic composite plate is provided with a bolt through hole, the bolt through hole is internally provided with a bolt which is directly fastened with the roller core and coated with threaded adhesive, and a ceramic cover is inlaid above the head of the bolt. The ceramic composite grinding roller is reasonable in structure and outstanding in shear resistance, extrusion resistance and abrasive resistance.

The invention discloses a high speed data cable. It includes sheath and many pairs of cable. Each pair of wire is formed by two insulation cores wires. A separation rib is set in the sheath. And the separation rib is foam structure. The twin is symmetrically set at the both sides of the separation rib. The foam structure is that some dry bubble are uniformly scattered in the section of the separation rib. The surface of the separation rib is concavo convex. The advantages are stable and reliable structure flexible, and easy to bend.

A method for manufacturing a fishing rod, which relates to a method for manufacturing a fishing tool. According to the size required by the design, at least two main cloths with an included angle of 5°-25° between the reference side and the carbon fiber pattern of the carbon fiber cloth are cut out; the main cloths are superimposed Lay together, the carbon fiber lines of the two adjacent main fabrics are in a cross shape; on the mold, use a carbon tape to form an inner winding layer at an angle of 10°-30° to the radial direction of the mold to form an inner winding layer; The final main cloth roll is rolled on the inner winding layer; then an outer winding layer is wound clockwise with a carbon tape and the radial direction of the mold at an angle of 10°-30°; finally, the BOPP release tape is wound and baked at high temperature. Exit the mold, remove the BOPP release tape, trim, polish, paint, and assemble to become a fishing rod. The fishing rod has good toughness, high strength, good conductivity to force, high sensitivity, and good pressure resistance. The tip of the fishing rod is not easy to break when it is twisted by force, and the rod body is not easy to break when it is squeezed by external force.

The invention discloses a cell carrier particle aggregate and a preparation method thereof. The cell carrier particle aggregate is formed by aggregating cell carrier particles and has specific shapes;the specific shapes include a sheet shape and a block shape. The cell carrier particle aggregate has excellent rehydration property and good dispersibility after rehydration. The cell carrier particles in the cell carrier particle aggregate have porous connectivity inside, and have great elasticity and extrusion resistance. After the aggregate is prepared by pressing, a very small amount of liquid carrier particles can be quickly dispersed into a single carrier stent without any change in physicochemical properties; no other component is added, powder does not exist on the surface of the aggregate obtained by the forming method, so that the static electricity of the aggregate is reduced as much as possible, and the loss caused by the static electricity of a powder product is avoided. Besides, single-piece quantitative sterilization storage in the form of a medicine plate can be achieved, the aggregate can also be quantitatively sterilized and stored in multiple pieces in a bottled form, independent packaging and sterilization are achieved, and aseptic operation of cell culture is facilitated.

The invention discloses a heat preservation technology for a continuous dip bleaching stage of a one bath one step method for cotton fabric and cotton blended fabric. According to the heat preservation technology, based on the prior art, a structure comprising a boiling box and a washing machine is improved to a sealed drum structure with an impeller so that the fabric can be fully spread and will not cluster or gather or form a pile in the processing process, and the boiling off effect and the blenching effect are good; the fabric is boiled and blenched at a low temperature firstly and then boiled and blenched at a high temperature, so that the decomposition rate and the decomposition products of hydrogen peroxide are effectively controlled, various kinds of processing liquid flow in the direction opposite to the movement direction of the fabric in a drum, and therefore the processing effect is further improved; through the continuous production mode, the good boiling-off effect and the good blenching effect are achieved, the degree of oxidative damage to fibers is reduced to the greatest extent, the production efficiency is high, the consumption of water, electricity and steam is low, technical control is simple, adjustment is convenient, and flexible production can be achieved.

The invention discloses a fruit and vegetable storage and transportation fresh-keeping box with the functions of sterilization and pesticide residue degradation, comprising a box body and a box cover, wherein the box cover hermetically covers on an upper opening of the box body; a heat insulating layer is coated on the inner side wall of the box body, and an anti-oxidation layer is coated outside the heat insulating layer; the box cover is provided with a small-size ozone generator capable of continuously generating ozone; the bottom of the inner side of the box body is provided with a partition rack; the partition rack is provided with a through hole; a fluid refrigerant bag is arranged on the lower part of the partition rack at the bottom inside the box body; and the inner side surface of the box cover is provided with the small-size ozone generator. The invention has good green physical fresh-keeping effect on fruits and vegetables, repeated use and extrusion resistance and is beneficial to assembly and disassembly; ozone generated by an ozone generating device inside the box body has the functions of sterilization, pesticide residue degradation, the removal of ethylene generated by the fruits and the vegetables, and the like, therefore the purpose of green safe fresh-keeping of the fruits and the vegetables can be realized through the ozone; the through hole of the bottom partition rack is beneficial to the circulation of the ozone inside the fresh-keeping box, therefore the fresh-keeping effect of the fruits and the vegetables is enhanced; in addition, the effect of temperature reduction can be realized through the repeatedly used fluid refrigerant bag.

The invention discloses a flexible cable used for a new energy automobile. The cable comprises a conductor and an insulation layer used for wrapping the conductor. The outer part of the insulation layer is provided with a cooling layer in a wrapped manner, and at least one cooling medium channel extended along the length direction of the insulation layer is disposed in the cooling layer, and is used to introduce the cooling medium for the cooling and the heat dissipation of the insulation layer. Heat energy radiated by the insulation layer outwardly is effectively, reliably, quickly, and greatly eliminated by the cooling medium, and then the heat energy radiated on the outer part of the cooling layer is reasonable, controllable, and safe, and then the special use requirement of the new energy automobile is satisfied. The flexible cable is in service and operated reliably, safely, and stably in various severe environments, and has advantages of simple structure, convenient forming, small forming difficulty, low forming costs, compact structure, good flexibility, excellent heat dissipation effect, high flame resistant performance, high reliability, good safety performance, and strong practicability.

The invention discloses a high-strength tooth-form composite halogen-free photovoltaic line cable, and the cable comprises an elastic support, conductor core wires, a fluoroplastic insulating layer, a buffering layer, a steel wire braiding armored layer, an insulating silica gel heat dissipation layer, and a heat dissipation belt. The plurality of conductor core wires are twisted together to form three bundles, and are uniformly the elastic support in a peripheral direction from the inside to the outside. A mineral substance fire-insulating material is placed in a gap between the elastic support and the conductor core wires. The outer side of the elastic support is sequentially wrapped by a metal shielding layer, the fluoroplastic insulating layer, a magnesium and silica alloy braided layer, a buffering layer steel wire braiding armored layer, an insulating silicon gel heat dissipation layer, and a heat dissipation layer. A tooth-shaped projection at an outer layer of the cable is equivalent to a limiting strip. For a plurality of parallel cables, the cable effectively avoid the twisting and mixed winding of cables because the tooth-shaped projection among cables plays a good effect in limiting and fixing, and brings convenience for wiring.

The invention discloses a touch screen, which comprises a circuit layer and a lead wire led out from the circuit layer. The touch screen is characterized by also comprising an upper line ITO film attached to the upper surface of the circuit layer, a mirror face attached to the upper surface of the upper line ITO film through a non-carrier optical adhesive tape, a lower line ITO film attached to the lower surface of the circuit layer, and a support plate attached to the lower surface of the lower line ITO film through the non-carrier optical adhesive tape. The invention also discloses a corresponding touch screen manufacturing method. The touch screen is thin and has extrusion resistance and high lead wire bending degree.

The invention relates to a novel double-compacted steel wire rope and a production technology thereof, and aims to provide a steel wire rope which is stable in physical property and is compacted tightly as well as a production technology of the steel wire rope. All pickled and phosphatized steel wires are drawn for the first time, then annealed, dried and drawn again after dried, and various finished steel wire products are formed. Third center steel wires, inner-layer steel wires, filling steel wires and third outer-layer steel wires are twisted and then rolled, steel wire rope first outer-layer strands are produced and twisted on the outer side of a rope core in a wrapping manner, a steel wire rope is twisted, the twisted steel wire rope is forged, and the forged steel wire rope is warehoused. The section area of each steel wire rope first outer-layer strand after rolling is 8%-10% smaller than that before rolling, and the section area of the steel wire rope after forging is 10%-13% smaller than that before forging. The rope core adopts 7*7 independent steel cores.

The invention discloses a corrosion resistant and squeezing highly resistant oil casing pipe and a preparation method thereof. The oil casing pipe comprises, by weight percentage, 0.22%<=C<=0.30%, 0.15%<=Si<=0.35%, 0.40%<=Mn<=0.60%, S<=0.003%, P<=0.01%, 0.02%<=Al<=0.04%, 0.75%<=Cr<=1.20%, 0.25%<=Mo<=0.55%, Ca<=0.0025%, N<=0.08% and the balanced Fe and unavoidable impurities. The oil casing has theadvantages that the squeezing resistant strength of the prepared oil casing pipe is 30% or above higher than the squeezing resistant strength required by API 5C3 standards, the hydrogen sulfide corrosion resistance performance is conformed to demands in API 5CT (45 edition) PSL3, and the oil casing pipe can be extensively applied to the exploitation of oil and gas wells of acid medium deep wells, ultra-deep wells and the like with complicated geological conditions

The invention discloses a functional composite coated controlled-release fertilizer with a polyolefin wax as a priming coat. The functional composite coated controlled-release fertilizer comprises fertilizer granules and a coating material, wherein the coating material is sprayed to the surfaces of fertilizer granules; the coating material is composed of a polyolefin wax coating, a starch-based polyurethane layer and an epoxy resin layer which are sequentially sprayed to the surfaces of the fertilizer granules; biological stimulin is sprayed between the polyolefin wax coating and the starch-based polyurethane layer or between the starch-based polyurethane layer and the epoxy resin layer. By adopting the functional composite coated controlled-release fertilizer disclosed by the invention, the technical difficulties that a conventional international controlled-release fertilizer is single in function, high in cost and hard to popularize, the controlled-release effect of the fertilizer can be seriously affected by extrusion abrasion in the transportation process, soil pollution can be caused by harmful dyes, sustainable development is hard to achieve as the fertilizer depends on petrochemicals, and excessive residual macromolecule membranes are resulted and are slow to degrade, can be solved, moreover, the problems that the biological stimulin is liable to deactivation when beingin direct contact with soil and fertilizers, release paces of nutrients and stimulin are hard to regulate and control, and the like, can be solved.

The invention relates to a sliding ball pin assembly applicable to a thrusting rod of a heavy loading vehicle balance rear suspension, which comprises a ball pin metal joint bearing and end covers, wherein the ball pin metal joint bearing comprises a ball pin and a friction pair outer ring; the middle part of the ball pin is spherical; the outside of the ball pin is assembled with the friction pair outer ring matched with the outside of the ball pin; the ball pin and the friction pair outer ring form a friction pair in a universal moving mode; the twisting and deflecting of the thrusting rod can be converted into relative movement of the friction pair; and the outer circumferential surface of the friction pair outer ring is provided with a layer of polyurethane which sulfates the friction pair outer ring and two end covers into a whole. When the ball pin performs the actions and bears impact, the polyurethane elastic body only bears extrusion; because the stress is simplified and the ball pin only bears the pressure subjected by the elastic body, the service life is greatly prolonged.