795 results about "Lubricant" patented technology

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

A system for preventing wear during a wash of a gas turbine engine is provided. The system includes an accessory gearbox, a transfer gearbox drivingly coupled to the accessory gearbox, and a lubrication system fluidly coupled to the accessory gearbox and the transfer gearbox. The lubrication system includes a supply circuit for supplying lubricant from a lubricant reservoir to the accessory gearbox and the transfer gearbox. The lubrication system further includes a return circuit for returning the lubricant from the accessory gearbox and the transfer gearbox to the lubricant reservoir. The lubrication system further includes a wash bypass line extending from the return circuit to the supply circuit.

This invention discloses an MPP pipe for power cables and its preparation method, relating to the field of polymer materials technology. The invention comprises, by weight, 80-90 parts of a toughening nucleating agent; 40-45 parts of an insulating nucleating agent obtained by in-situ composite and gradient temperature imidization treatment of a polyamic acid prepolymer prepared from hexagonal boron nitride nanosheets (prepared by surface modification with dopamine hydrochloride, followed by modification with octyltriethoxysilane) to obtain a silanized boron nitride suspension; 40-45 parts of melamine cyanurate; 2.1-2.4 parts of an antioxidant; 2.6-3 parts of a light stabilizer; 8-9 parts of a lubricant; and 1340-1500 parts of polypropylene. The introduction of the toughening nucleating agent and insulating nucleating agent in this invention effectively improves the flame retardancy, low-temperature rigidity-toughness balance, and aging resistance of the MPP pipe.

Electrosurgical lubricants, sterilized kits including the lubricants, methods for using the lubricants, and methods for preparing sterilized kits having the lubricants therein. Electrosurgical devices utilize a high frequency electrical current to cut and to coagulate tissue during surgery. A problem of the electrosurgical devices is that the heat thereof causes tissue, such as that of a human being, to remain on the device and is generally difficult to remove, even with repeated washings. The electrosurgical lubricants have been found to considerably reduce the amount of eschar that builds up on electrosurgical devices, decrease the tendency of electrodes to stick to tissues at the surgical site, and prevent damage to the surface of the electrosurgical device.

This application belongs to the field of polymer materials technology, specifically disclosing a modified PC / ABS alloy and its preparation method. By weight, it comprises: polycarbonate: 50-80 parts; ABS resin: 15-40 parts; comb-shaped reactive compatibilizer: 3-8 parts; halogen-free flame retardant: 8-18 parts; nano-talc powder: 3-10 parts; core-shell toughening agent: 2-8 parts; antistatic agent: 0.5-3 parts; antioxidant: 0.2-0.8 parts; lubricant: 0.2-1.0 parts. The tensile strength (56.3-66.8 MPa), flexural strength (88.4-98.5 MPa), flexural modulus (2480-2780 MPa), and notched impact strength (23℃: 52.4-62.5 kJ / m) are also disclosed. 2 -30℃: 28.5~36.2kJ / m 2 Heat distortion temperature (110~125℃), limiting oxygen index (30.0~32.0%), flame retardant rating (V-0), and surface resistivity (5.2×10⁻⁶) are also specified. 9 ~2.5×10 10 In terms of Ω), it is better, and the high performance of PC / ABS alloy is achieved by using reactive compatibilizers, nano talc powder, phosphorus-nitrogen-silicon ternary synergistic flame retardant system, core-shell toughening agent and polymeric antistatic agent.

System, comprehensive: a shaft assembly comprising a shaft outlet flange, a shaft inlet flange and an insert arranged in an internal volume formed by the shaft outlet flange and the shaft inlet flange, wherein the shaft inlet flange has an internal volume with internal surfaces in flush contact with a lance, and the shaft inlet flange is radially supported by a bearing; and a vent located in the shaft inlet flange at a point upstream of the bearing and the internal volume with respect to a lubricant flow direction.

The application relates to the technical field of magnetic materials, in particular to a preparation method of high-performance heavy-rare-earth-free neodymium iron boron magnets; the preparation method comprises the following steps: rapidly quenching a main phase alloy into a flake, obtaining coarse powder after hydrogen breaking; immersing the coarse powder in an ethanol mixed solution containing lanthanum nitrate and cerium nitrate, drying the pretreated coarse powder after ultrasonic-magnetic stirring cooperative treatment; adding an antioxidant and a lubricant into the pretreated coarse powder, preparing fine powder with an average particle size of 2-3.5 microns through airflow milling; performing magnetic field orientation compression molding on the fine powder under nitrogen protection, improving the density through cold isostatic pressing; finally, performing vacuum sintering and step-by-step tempering treatment to obtain the high-performance heavy-rare-earth-free neodymium iron boron magnets; wherein the main phase alloy is composed of the following components with mass percentage: 28-31wt.% Pr25Nd75, 0.88-1.2wt.% B, 0-0.1wt.% Al, 0.05-0.3wt.% Ti, 0.05-0.4wt.% Cu, 0.5-1.4wt.% Co, 0.1-0.4wt.% Ga, and the balance is Fe; the prepared neodymium iron boron magnet has the dual characteristics of high coercivity and high remanence, and effectively guarantees the performance and quality.

The present invention relates to an automotive pendulum-slider pump (10, 10') for providing pressurized lubricant. The automotive pendulum-slider pump (10, 10') includes a non-rotatable rotor housing (12); a rotatable rotor ring (20, 20') that rotates within the rotor housing (12) and surrounds a pumping chamber (25) having an intake opening (18) and an exhaust opening (19); a rotatable rotor hub (35) that is rotatably connected to the rotor ring (20, 20'); and a plurality of pendulum blades (30) arranged at equal angles on the circumference of the rotor ring (20, 20') and each blade (30) is pivotally hinged by a separate pendulum hinge (32) at the rotor ring (20, 20'). The vanes (30) divide the fluid in the pumping chamber (25) into multiple pumping compartments (40), wherein the pumping chamber (25) is equipped with an automatically switching pressure matching valve (50, 50') for pre-opening the fluid connection between at least one pre-openable pumping compartment (40B) and the discharge opening (19) just before the pumping compartment (40B) has reached the discharge opening (19). The pre-opening fluid connection provides pressure matching between the pre-openable pumping compartment (40B) and the discharge pressure to reduce noise emissions caused by pressure pulsations resulting from sudden pressure equalization that occurs when the pumping compartment (40) reaches the discharge opening (19).

The application relates to the technical field of shoe sole materials, in particular to a foamed composite material and application of the foamed composite material in shoe materials, which comprises EVA resin, ethylene-propylene-diene rubber, wear-resistant particles, a filler, a foaming agent, a crosslinking agent, a lubricant and an activator; wherein the wear-resistant particles are modified porous corundum, which is obtained by in-situ ring-opening polymerization of flexible PCL chains in and outside the pores of the porous corundum after surface activation; and the flexible PCL chains further have polyethylene glycol-stearic acid polymer brushes. Compared with the prior art, the application has the beneficial effects that: the EVA provides good processability and elasticity, the ethylene-propylene-diene rubber endows the material with excellent low-temperature performance and aging resistance; the corundum core of the modified porous corundum provides a high-hardness wear-resistant framework, significantly reduces the abrasion amount in a unit volume, the polycaprolactone main chain and the polyethylene glycol-stearic acid side chain compensate the rigidity of the corundum, and guarantee the high resilience, especially the low-temperature resilience, of the EVA material.

A durable biomimetic concave lubricating oil wetting surface design method includes the following steps: designing a concave structural surface to ensure stable distribution of lubricating oil within the structure, reducing loss and improving surface durability; establishing a lubricating oil wetting mechanism by decomposing and calculating the forces acting on the gas-liquid interface to allow lubricating oil to wet the interior of the structure; establishing a lubricating oil loss mechanism by comparing the static contact angle and the tilt angle of the top edge of the structure relative to the vertical direction, determining the degree of concavity and oil-locking ability of the concave structural surface, determining the shape coefficient of the concave structural surface, and obtaining a concave structural surface with excellent performance in both lubricating oil wetting and lubricating oil loss.

The present invention relates to a dental article comprising: an application device (20) having a compartment (30) having an inner surface (31); a piston assembly (40) movably located in the compartment (30), the piston assembly (40) including a piston body (41); a seal A (42) located at a front end of the piston body, the seal A having one or more gaps (43); a seal B (44) spaced apart from the seal A; a collection reservoir (45) adapted to collect a lubricant composition during dispensing of dental material; a dispensing section (50) located at a distal end of the compartment; a lubricant composition (60) located on the inner surface of the compartment; and dental material (70) located in the compartment in contact with the lubricant composition.

The application discloses a kind of corrosion-resistant double-armored submarine cable and preparation method thereof, it is related to submarine cable technical field.The corrosion-resistant double-armored submarine cable includes outer sheath layer, water barrier layer, double-armored layer, insulating inner liner, filling layer, insulating layer, copper conductor in turn from surface to inside;The outer sheath layer is obtained by extruding coating on the surface of double-armored layer by corrosion-resistant submarine cable material;The corrosion-resistant submarine cable material includes the following raw material components: by mass parts, 75-90 parts of high-density polyethylene, 30-50 parts of ultra-high molecular weight polyethylene, 10-25 parts of modified microfiber, 8-15 parts of ethylene-vinyl acetate copolymer, 0.2-0.5 parts of antioxidant, 1-1.2 parts of lubricant.The application optimizes sheath layer material, solves the problems of existing double-armored submarine cable corrosion failure, short service life, unstable performance and other problems, meets the demand of long-term service reliability.

The application provides a high-strength and high-toughness PVC profile and a preparation method thereof. The high-strength and high-toughness PVC profile comprises a first high-strength layer, a first fiber layer, a PVC layer, a second fiber layer and a second high-strength layer in sequence. The first high-strength layer and the second high-strength layer each comprise the following components in parts by weight: PVC resin 100-150 parts, calcium-zinc stabilizer 3-5 parts, reinforcing particles 15-20 parts, internal lubricant 0.5 part, external lubricant 0.5 part and stearic acid 0.2 part. The reinforcing particles are modified waste rubber particles. The first fiber layer and the second fiber layer are formed by rolling PVC slurry on fiber fabric, so that the comprehensive performance of the PVC profile is effectively improved.

This application relates to the field of fireworks molding technology, specifically disclosing a high-strength fireworks molding agglomerate based on in-situ whisker toughening and staged curing, and its preparation method. It includes the following components: calcium carbonate powder, micron-sized gypsum whiskers, virgin cassava flour, a gelatinization-coking regulator, wood fiber, lubricant, and water; the gelatinization-coking regulator is a compound of polyol and pH buffer salt. This solves the technical problem mentioned above where the existing fireworks molding agglomerates, due to the introduction of anhydrous gypsum and cassava flour, are prone to defects such as large bubbles, microcracks, or delamination during the production process, leading to defective products, low yield, and serious constraints on product quality stability.

The present invention relates to a head for manufacturing a piston (2) for a die-casting press. The head comprises at least one ring seat (14) suitable for receiving each seal ring (16), from which at least one ring lock projection (4) suitable for engaging with each through-opening (6) provided in the seal ring (16) extends. A lubrication circuit (20) is formed inside the head. The lubrication circuit comprises at least one lubrication end duct (22) leading to the base of the ring lock projection (4), thereby allowing lubricant to escape from the piston head through the gap (23) between the ring lock projection (4) and each through-opening (6) when the ring is attached to the head.

This invention discloses a low-VOCs, low-odor environmentally friendly material for the production of sealing strips for passenger vehicles and its preparation method, belonging to the field of polymer materials technology. The technical solution includes the following raw materials in parts by weight: 100 parts PVC resin; 5 parts stabilizer; 40-60 parts plasticizer; 0.4-0.6 parts lubricant; 1.3-1.5 parts antioxidant; 0.3-0.4 parts ultraviolet absorber; 0.3-0.5 parts deodorizer A; 0.8-1.0 parts deodorizer B; 10-25 parts light active calcium carbonate; 1.0-1.2 parts pigment; deodorizer A is a complex of zinc amino acid, and deodorizer B is benzoic anhydride-intercalated modified aluminum-magnesium hydrotalcite. This invention can capture free, irritating small-molecule alcohols and convert them into esters with milder odors, effectively preventing alcohols from being converted into irritating ethers and ketones during processing, thus reducing the odor and VOCs of passenger vehicle sealing strips.

A squeeze film damper assembly for a turbine engine includes an annular bearing support and an annular damper housing. The annular bearing support includes an inner support segment and an outer support segment located radially outward of the inner support segment. The inner support segment and the outer support segment are spaced apart to define a support channel therebetween. The annular damper housing is at least partially received in the support channel to define an inner damping chamber and an outer damping chamber, the inner damping chamber being radially inward of the outer damping chamber, the inner damping chamber and the outer damping chamber each capable of being filled with an amount of lubricant to provide a squeeze film damper at the inner damping chamber, the outer damping chamber, or both.

This invention relates to an EV cable material for charging piles. It comprises the following components and parts by weight: 45-55 parts polyvinyl chloride (PVC), 5-10 parts stabilizer, 35-50 parts plasticizer, 25-50 parts P83 rubber, 2-5 parts flame retardant, 10-20 parts propylene diene monomer (PPD) rubber, 10-25 parts TPU, 0.1-0.4 parts lubricant, 0.2-0.8 parts antioxidant, and 1-2 parts anti-aging agent. The EV cable material of this invention is soft to the touch, has good oil resistance, high tear strength, is lightweight, and has good flame retardancy. It does not require radiation cross-linking and can meet the long-term operating requirements of cables at 125°C, achieving a truly environmentally friendly flame-retardant material. Compared with thermosetting low-smoke halogen-free materials and other materials, it is a cost-effective alternative.

The application relates to the technical field of high polymer materials, and particularly discloses a high-toughness rubber glove material and a preparation method thereof, the high-toughness rubber glove material comprises the following raw materials: a base material, nano silicon dioxide, a multifunctional crosslinking agent, a peroxide initiator, a lubricant and an antioxidant; the base material is composed of alpha-olefin ethylene copolymer, ethylene propylene diene rubber and hydrogenated styrene-butadiene block copolymer in a mass ratio of 5-7:2-3:1-2. The hydrogenated styrene-butadiene block copolymer is introduced as a physical compatibilizer, macroscopic phase separation in a dynamic crosslinking process is effectively inhibited, and crystal point defects are eliminated; the multifunctional crosslinking agent is used for micro-crosslinking, so that the material can dissipate strain energy through molecular chain stretching when subjected to external force, the tensile strength, the elongation at break and the tear strength of the glove are significantly improved under the premise of keeping soft, and excellent barrier blocking performance is endowed.

The present invention particularly relates to a rotating apparatus for a container processing plant. The rotating apparatus includes a support frame having a notch and an annular lubricant channel surrounding the notch. The rotating apparatus includes a rotor plate arranged in the notch for rotation relative to the support frame, and the rotor plate has an annular collar extending from above into the lubricant channel.

The present invention relates to PI particles as lubricant additives.

The application relates to the technical field of road engineering machinery, in particular to a separating agent spraying device for a rubber-tired road roller and a spraying control method. The device comprises an information acquisition unit, a spraying device and a controller. The controller dynamically determines a target spraying amount and controls the spraying device to execute based on the rubber wheel surface adhesion state information acquired by the information acquisition unit in real time, forming a real-time feedback control closed loop. The controller has a built-in mapping relationship model, and the model is iteratively updated after each spraying according to the state information collected again as effect data, realizing self-learning and continuous optimization of the system. The scheme realizes the leap of separating agent spraying from a fixed mode to dynamic and accurate regulation and control through the construction of an intelligent closed loop of "perception-decision-execution-optimization", solves the problem of material waste; at the same time, by introducing the model online updating mechanism, the system has self-adaptive ability and can continuously optimize the control strategy according to the working conditions, realizing long-term optimal control performance and material utilization.

The application relates to the technical field of injection molding demolding master batches, in particular to a polyester transparent injection molding demolding master batch and a preparation method and application thereof. According to mass proportions, 85% to 97% of a carrier and 3% to 15% of a lubricant are included; the lubricant includes zinc bungarotoxin, zinc cinnamate and octadecyl octadecanoate with a mass ratio of (2 to 6):(2 to 6):(1 to 4). The lubricant with the specific component ratio improves the fluidity and demolding property of the polyester product and reduces the haze.

The utility model relates to the technical field of coating tests, and discloses a low-light particle size analyzer for a powder coating test, which comprises an analyzer body, the outer side of the analyzer body is fixedly connected with a frame body, a base is fixedly mounted in the frame body, the top of the base is fixedly connected with a uniform mixing barrel, and the uniform mixing barrel is fixedly connected with the bottom of the analyzer body. A vibration machine is fixedly installed in the base, a vibration excitation mechanism is fixedly installed on the outer side of the vibration machine, a vibration excitation rod is fixedly installed in the vibration excitation mechanism, a vibration excitation ball head is fixedly installed at the top end of the vibration excitation rod, an isolation layer is fixedly connected to the interior of the uniform mixing barrel, and a first pump body is fixedly installed on the inner wall of the uniform mixing barrel. The powder coating mixing device has the following advantages and effects that the powder coating at the top of the isolating layer and a lubricant can be fused and uniformly mixed, and the powder coating and the lubricant are uniformly mixed through excitation in the process, so that the damage to the essence of the powder coating is reduced, and the experiment quality is improved.

A cage is for a bearing including an inner body having an inner raceway surface, an outer body disposed about the inner body so as to define an annular space, the outer body having an outer raceway surface, and a plurality of rolling elements disposed within the annular space and rollable simultaneously upon the inner raceway surface and the outer raceway surface. The cage includes an annular body disposeable within the annular space between the inner body and the outer body, having a centerline and including a plurality of pockets spaced circumferentially about the centerline. Each pocket is defined by a separate radial surface and is configured to retain a separate one of the plurality of rolling elements. At least one radial hole intersects the radial surface of one of the plurality of pockets and provides a storage space for lubricant.

The present application belongs to the field of pipeline, disclose a kind of whisker reinforced double-wall corrugated pipe, by weight parts, including following raw material components: polypropylene 40~60 parts, polyethylene 40~80 parts, talcum powder 10~20 parts, stearic acid 1~5 parts, filler 15~20 parts, toughening agent 2~5 parts, lubricant 1~3 parts, antioxidant 1~5 parts, color masterbatch 5~10 parts, whisker 8~20 parts.The raw material of the present application is added in corrugated pipe, can be good to strengthen the use intensity of corrugated pipe, avoid rapid aging cracking.The present application further discloses a kind of whisker reinforced double-wall corrugated pipe production process, combination whisker corrugated pipe.

A fluorine-containing ether compound represented by the following formula. R1—CH2—R2a—CH2—R3a—CH2—R2b—CH2—R3b—CH2—R2c—CH2—R3c—CH2—R2d—CH2—R4 (R2a, R2b, R2c and R2d are each a perfluoropolyether chain, R3a, R3b, and R3c are each a divalent linking group having one or more polar groups, at least one of R3a, R3b, and R3c is represented by —OCH2CH(OH)CH2O—, and R1 and R4 are each a terminal group having 1 to 50 carbon atoms and one or more polar groups, and may be the same as or different from each other).

The present invention relates to a drive system for a rear wheel (7) of an electrically assisted bicycle, comprising: a rear arm (3) adapted to support said rear wheel (7), and an electric motor adapted to be coupled to the crankset (8) to drive said crankset in rotation, said motor comprising a stator (45), a rotor (46), and a transmission device arranged to transform a rotary motion of the rotor (46) into a rotary motion of the crankset, the crankset being adapted to cause rotation of the rear wheel (7) by means of a drive means (70), wherein the rear arm (3) comprises a first housing (40) in which the rotor (46) and the stator (45) are arranged, and a second housing (50) in which the transmission device is arranged, said second housing (50) containing a lubricant and being sealed from the lubricant to the first housing (40). Figure for the abstract: Fig. 2

According to the method of the invention, a lubricant is supplied incrementally to a rotary bearing (1) while the bearing is in operation i.e. rotating at a given rotational speed. The lubricant is supplied in a sequence of consecutive steps so that at each step a subportion of a prescribed amount of lubricant is supplied to the bearing, followed each time by an ultrasound measurement. A first ultrasound measurement is performed before the first supply step, and starting from the second supply step, each measurement result is compared at least to the previous result, in order to evaluate the bearing condition and decide on the basis of this evaluation whether to continue the sequence or stop the sequence. The stopping of the sequence is decided when the lubrication of the bearing is assessed as lubrication success, lubrication failure or overlubrication. The invention is equally related to a system for lubricating one or more bearings, applying the method of the invention to each of said bearings.

The application discloses an anti-wear and friction-reducing agent for a humanoid robot lubricating grease and a preparation method thereof, and particularly relates to the technical field of lubricant materials, and the anti-wear and friction-reducing agent is a composite material formed by in-situ growth of amorphous manganese oxide two-dimensional sheets on the surface of carbon nanotubes; the XRD pattern of the amorphous manganese oxide presents characteristic diffraction peaks of the carbon nanotubes and amorphous packages, and does not present characteristic diffraction peaks of crystalline manganese oxide; the selected area electron diffraction presents a diffuse halo ring, and is chemically bonded with the carbon nanotubes through Mn-O-C. The preparation method comprises the following steps: dispersing the carbon nanotubes in deionized water, adding a potassium permanganate solution, stirring and reacting at room temperature for 2-5 min, not adding an additional reducing agent, only using the carbon nanotubes as a reducing agent, and then performing centrifugation, washing and drying. The anti-wear and friction-reducing agent has excellent shear stability, significantly improves the anti-wear and friction-reducing performance of the lubricating grease, and has the advantages of simple process, rapidness, low cost and suitability for applications such as humanoid robot joints.