590 results about "Low friction" patented technology

The invention relates to the field of screw forming, and discloses a screw cold heading forming process which is characterized by comprising the following steps: step 1, wire preparation and surface pretreatment: based on the requirement of screw forming on the surface quality of raw materials, a metal wire is treated by adopting a mechanical wiredrawing and chemical phosphating and saponifying composite process, and the surface of the metal wire is treated; surface oxide skin is removed, a lubricating film layer is formed, and the forming flowability and the service life of the die in the subsequent cold heading process are effectively improved. A raw material is subjected to spheroidizing annealing treatment in a continuous spheroidizing annealing furnace, internal pearlite is converted into spherical cementite, the ductility and deformation uniformity of the material are improved, then a continuous wire drawing machine is adopted for multi-stage drawing diameter reduction, a three-stage chemical phosphating-saponification treatment process is matched, a low-friction and high-adhesion lubricating film layer is formed, and the service life of the lubricating film layer is prolonged. And a stable material basis and a lubricating environment are provided for the subsequent cold heading process, so that the problems that the friction resistance generated in the forming process of a screw material is large, and a mold is quickly worn are solved.

A cover for a support surface includes: a ticking made of a ticking material configured to enclose a support layer of the support surface, the ticking having an outer top surface configured to face a person lying on the support surface; and a friction reducing overlay on at least a portion of the outer top surface for facilitating displacement of the person on the support surface, the friction reducing overlay being made of a low friction material formed onto the ticking material, the friction reducing overlay comprising a plurality of overlay elements that are spaced apart from each other to form an overlay pattern.

The invention provides a gradient self-repairing sealing coating and a preparation method thereof, and relates to a high-temperature protection material. The gradient self-repairing sealing coating comprises a bonding layer, a gradient middle layer, a transition layer and an abradable surface layer which are sequentially arranged from a base body to the surface. A bonding layer in the gradient self-repairing sealing coating contains silicate, so that the bonding strength and the heat-resistant stability of a matrix are improved; rare earth silicate and Ir elements are introduced into the gradient intermediate layer, so that high-temperature corrosion resistance is enhanced, and thermal stress is relieved; the transition layer contains zirconium oxide and graphene and has the functions of thermal isolation and stress regulation; the abradable surface layer is formed by combining rare earth silicate and graphite, low friction and preferential abrasion are achieved, and effective sacrifice protection is provided. The overall structure can have multiple properties of heat, corrosion resistance and abrasion resistance, and is suitable for the surface protection requirement under the complex hot end working condition.

The present invention pertains to a wear pad for a telescopic boom of a work machine, comprising a base part configured to be fixedly mounted to the telescopic boom, and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. The invention further pertains to a telescopic boom assembly for a work machine, comprising a first boom segment having at least one first wear pad assembly mounted to a free end of the first boom segment, and a second boom segment having at least one second wear pad assembly mounted to a sliding end of the second boom segment, wherein at least one of the wear pad assemblies comprise a wear pad having a base part and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. Further, the present invention pertains to a work machine comprising such telescopic boom assembly.

A motion simulator system is disclosed that includes a freely rotatable movable frame supported by, but unattached to, a hemispherical base. The movable frame comprises a spherical enclosure constructed from rigid, lightweight materials such as composite materials or interlocking panels, providing unlimited 360-degree rotation in all three rotational degrees of freedom (pitch, roll, and yaw). An internal actuator system coupled to the movable frame controls attitude positioning while the center of rotation remains substantially fixed relative to the base. Low friction engagement between the movable frame and base is achieved through transfer bearings integrated into the base's outer surface or by pressure-vented air cushions. The system enables smooth, continuous rotation of the untethered movable frame for enhanced motion simulation applications.

The application belongs to the technical field of surface modification, and discloses a method for constructing a ceramic-based self-lubricating, high-wear-resistant and strong-corrosion-resistant coating based on thermal spraying technology and application. The method uses a thermal sprayed ceramic coating as a template, introduces a solid-liquid reversible lubricating phase, and after being heated and melted, the solid-liquid reversible lubricating phase is penetrated into inherent pores and micro / nano cracks in the ceramic coating through a vacuum impregnation process, and is solidified and retained in the defects after cooling, so that a new ceramic-based self-lubricating and strong-corrosion-resistant composite coating is finally obtained. The preparation method is simple, fast and efficient, and does not affect the mechanical properties of the ceramic coating, and the ceramic-based self-lubricating and strong-corrosion-resistant composite coating has low friction coefficient and excellent wear resistance and corrosion resistance.

The invention discloses a strong-combination wide-temperature-range wear-resistant composite coating, and relates to the technical field of solid lubricating materials, the composite coating comprises a transition layer, a functional inner layer, a diffusion barrier layer and a functional outer layer which are sequentially formed on the surface of a matrix, the transition layer is a Mo layer and a Mo2N layer, the functional inner layer is a MoAgN layer, the diffusion barrier layer is a Mo2N layer, the functional outer layer is a MoAgN layer, and the functional inner layer is a MoAgN layer. The functional outer layer is a MoAgN layer, and the MoAgN layer comprises a Mo2N phase and an Ag phase. The invention further discloses a preparation method of the composite coating and application of the composite coating in the field of solid lubrication protection. The composite coating is good in film-substrate binding force and low in friction coefficient and wear rate in a wide temperature range, damage to key mechanical parts in the air foil bearing caused by high-temperature lubrication failure can be avoided, and the tribological performance of the bearing parts under the working condition of the wide temperature range is improved.

The invention discloses an electroplated part, an electroplated part manufacturing method and a connector. The electroplated part comprises a base material; a nickel plating layer formed on the surface of the base material; the tin-graphite composite plating layer is formed on the nickel plating layer; the nickel plating layer is formed on the base material, the tin-graphite composite plating layer is formed on the nickel plating layer, the tin plating layer is formed on the tin-graphite composite plating layer, the nickel plating layer serves as a bottom plating layer of the base material, the tin plating layer serves as an outer plating layer of the base material, and the tin-graphite composite plating layer serves as a middle plating layer of the base material. According to the invention, the graphite particles exposed from the tin-graphite composite coating are partially or completely wrapped by the outermost tin coating, so that the graphite particles are not easy to fall off, the wear resistance and corrosion resistance of the electroplated part are improved, and the service life of the electroplated part is prolonged. In addition, the plating layer structure also has a relatively low friction coefficient, so that the insertion and extraction force of the electroplated part in the use process can be greatly reduced.

The invention provides a high-performance nylon material and a preparation method thereof. The high-performance nylon material comprises the following components in parts by weight: 30-65 parts of polyamide 66; 5 to 25 parts of special nylon resin; 30 to 35 parts of glass fiber; 0.2 to 0.4 part of an antioxidant; 0.4 to 0.8 part of a lubricant; 1 to 3 parts of compatilizer; 5-15 parts of a wear-resistant auxiliary agent; 0.6 to 1.0 part of a weather-proof auxiliary agent; and 0.3 to 0.7 part of black master batch. The nylon material prepared by the invention is suitable for performance requirements of outdoor precision bearings, and has excellent performances of low friction coefficient, low abrasion, high strength, high modulus, long-period weather resistance, long-period high temperature and high humidity resistance and the like.

The invention discloses a thin and thick paper tension stabilizing traction device, which relates to the technical field of paper traction, and comprises a bearing frame, a paper feeding roller, a threaded paper spreading and passing roller, a tension roller and a tension sensor, a swing mechanism is arranged in the bearing frame and comprises an air cylinder displacement sensor, an ultra-low friction swing rod air cylinder, a swing roller, a swing roller force arm, a swing roller balance weight rod, a low-tension position hole and a high-tension position hole, the low-tension position hole and the high-tension position hole are formed in the side edge of the swing roller force arm, and the swing roller and the swing roller balance weight rod are installed on the side edge of the swing roller force arm. Paper flattening is achieved by means of thread structures of the thread paper unfolding and passing roller and the paper feeding roller, and initial tension of different pieces of paper is accurately detected in cooperation with a tension sensor. Through the combination of the swing roller balance weight lever, the ultralow friction swing rod cylinder and the low / high tension position hole, the tension can be flexibly adjusted to adapt to different characteristics of thick paper and thin paper, and the problem that the tension of the thick paper is insufficient or the thin paper is excessively stretched is solved.

A treadmill includes a walking board assembly, and a walking belt encircling the walking board assembly. The walking board assembly includes a support plate, a wear-resistant plate mounted on the support plate, and a wax layer mounted on the wear-resistant plate. The wear-resistant plate is made of wear-resistant material with a low friction coefficient. The wear-resistant plate has a bottom face abutting the top face of the support plate. The wear-resistant plate has a top face integrally formed with multiple grooves. The wear-resistant plate has a thickness less than that of the support plate. The wax layer is coated on and filled with the grooves of the wear-resistant plate. The wax layer has a coating height at least equal to the depth of each of the grooves.

The invention relates to the technical field of track operation, and discloses a full-automatic track bolt operation maintenance device which comprises a track body, a bottom framework is arranged at the top of the track body, a control box is arranged at the top of the bottom framework, batteries are arranged at the positions, located on the two sides of the control box, of the top of the bottom framework, and a positioning sensor is further arranged on the bottom framework. Two first L-shaped plates are symmetrically distributed on one side of the bottom of the bottom framework, and a positioning wheel is arranged between the two first L-shaped plates. According to the full-automatic track bolt operation maintenance device, through the collaborative design of the positioning unit and the execution assembly, the operation safety problem under the ice surface low-friction environment is fundamentally solved. After the sucker of the positioning assembly is adsorbed on the track, the sucker and the positioning wheel can fix the bottom framework together, so that the device is prevented from slipping or displacing when bolt torque is applied, the phenomenon of false tightening is completely eradicated, namely the situation that the recorded torque of the device reaches the standard but effective torque is not actually applied to the bolt is prevented, and the potential safety hazard of line operation is eliminated.

The invention relates to the technical field of desiccant packaging equipment, and discloses a desiccant packaging supply film forming device which comprises a packaging forming device and a regulation and control conveying mechanism installed on the packaging forming device. Comprising a first rotating shaft fixedly connected with the packaging forming device and a first friction roller fixed to the first rotating shaft. Each of the two second friction assemblies comprises a second friction roller mounted on the first rotating shaft; the moving assembly is used for controlling the two second friction rollers to move; the heat dissipation assembly works in cooperation with the moving assembly and is used for enabling two second friction rollers to move in opposite directions through the moving assembly according to the friction coefficient needed by the packaging film and the material of the packaging film, and the contact area between the two second friction rollers and the packaging film is changed; for a smooth PE film, the contact area is reduced, and the friction force is reduced; for rough composite aluminum films, the contact area is increased, the friction force is improved, film material slipping or tensile deformation is avoided, and the film supply stability is ensured.

The invention provides an epoxy resin wear-resistant coating and a preparation method thereof, and belongs to the technical field of polymer composite materials. The epoxy resin wear-resistant coating is prepared from the following raw materials in parts by mass: 100 parts of epoxy resin, 2 to 20 parts of composite filler, 5 to 30 parts of curing agent, 0.2 to 4 parts of defoaming agent and 0.5 to 5 parts of flatting agent, the composite filler is PTFE and a modified inorganic filler; the modified inorganic filler is a compound system of modified nano SiO2, modified nano ZnO, modified MoS2 and modified nano Al2O3. According to the invention, the antifriction material and the reinforcing material are compounded, and the silane coupling agent is used for surface modification, so that firm combination of the filler and the epoxy resin matrix is realized. MoS2 and PTFE provide a continuous lubricating effect, and the friction coefficient is reduced; the hardness, the strength and the bearing capacity of the coating are remarkably improved through the nano oxide particles, and the coating has the characteristics of low friction and high wear resistance through the synergistic effect of the nano oxide particles and the coating.

The invention relates to a rapid and intelligent stamping method for hardware products, belongs to the technical field of intelligent stamping of the hardware products, solves the problem of resilience through the combined action of temperature gradient control and partition mechanical compensation, is provided with a heating and cooling unit at a bending station, and is pre-pressed through a low-friction coating pressure plate and a high-strength spring at an outer tension area, so that the metal products are rapidly and intelligently stamped. In the inner side pressed area, a stepped material ejecting block is designed to be matched with a multi-rigidity spring set, so that partition elastic yielding is achieved, redundant materials are absorbed, wrinkling is restrained, a wedge-shaped ejector rod and a wedge-shaped floating sliding block are designed in a transition area, and springback is counteracted through material ejecting and pressing and active pre-compression in the middle and later period of bending; besides, the bending force curve is monitored in real time through intelligent closed-loop control, theoretical value deviation is compared, temperature control parameters and the bending speed are adjusted in a self-adaptive mode till the springback value is stabilized within the error range, and the problems of how to synchronously restrain bending defects and accurately control the springback value in the continuous stamping process in the prior art are solved.

The invention relates to a portable beam anchor system configured for remote attachment and release comprising a beam clamp system, a right and left housing, and an attachment system. The beam clamp system includes a right and left clamp, a latch mechanism, a support member, and a rope attachment member. The size of the right and left clamp and support member correspond to the size of a beam. The right and left housing are positioned to substantially cover the right and left clamp. The attachment system is configured to remotely, slidably translate the right and left clamp toward one another on the support member. The low friction member is coupled to one of the right and left housing. The attachment line extends over the low friction member coupled to one of the housings and is fixably coupled to the other housing.

The invention discloses a surface coating method for realizing thrust amplification of a sail, which is characterized in that a sail blade which takes a glass fiber composite material as a basic material comprises a step of anti-drag coating of a convex surface part of the sail blade, a step of anti-drag coating of a concave surface of the sail blade, a step of special coating of a sail blade end plate and a step of special coating of a sail blade guide device. A low-friction and high-wear-resistance coating which takes modified PTFE resin as a base material and contains nano aluminum oxide and graphite micro powder is adopted for the convex surface; and the concave surface adopts a vortex breaking-strong adhesion type coating which takes fluorocarbon resin (PVDF) as a base material and contains nano silicon dioxide and hollow glass beads. According to the invention, the thrust efficiency is improved by 60-80%; the thrust stability under the wide wind speed is improved by more than 60%, the service life of the sail blades can be prolonged, the operation and maintenance cost is reduced, an existing sail can be directly transformed, and the sail has the advantages of being low in cost and high in efficiency and has economic and environment-friendly values.

The application discloses a graphene-diamond composite coating and a preparation method and application thereof, and belongs to the technical field of materials. The graphene-diamond composite coating comprises a diamond coating and a graphene coating; graphene sp2 bond structure is covalently combined with diamond sp3 bond structure; and the graphene coating has a graphene structure with non-parallel growth mainly in a vertical direction. The graphene-diamond composite coating has small lattice mismatch between the diamond and the graphene, avoids volume expansion caused in a friction heat process, and has the advantages that the diamond coating can provide a support layer for the graphene, forms super-strong C-C covalent bonds at an interface, and significantly improves the adhesion strength of the graphene; the graphene can avoid brittle fracture of the diamond, and significantly improves the lubricating performance of the surface of the diamond coating. The composite coating has better wear resistance, a low friction coefficient and excellent oxidation resistance, and can remain stable under high-temperature and high-load working conditions, so that the service life and processing efficiency of wear-resistant parts are improved.

The utility model discloses an automatic shoebox labeling machine which comprises a label releasing assembly, a material belt recycling assembly, a label stripping assembly, a label attaching assembly and a conveying assembly. The label releasing assembly drives a discharging belt and a friction wheel train to cooperatively control tension through a servo motor, and the material belt recycling assembly synchronously recycles backing paper. According to the label stripping assembly, a label tearing air cylinder is adopted for driving a paper pushing wheel to separate labels, a width-adjustable label channel (10-30 mm) is combined with a polytetrafluoroethylene coating to reduce friction, and label positioning and triggering are achieved through a label pressing block and a photoelectric sensor. The label attaching assembly adsorbs a label through a vacuum suction nozzle array, the label is accurately attached through the XY moving module, and a blocking air cylinder positions a shoe box. Through dynamic tension adjustment, self-adaptive stripping and closed-loop positioning, the problems of labeling deviation, material blocking and compatibility of traditional equipment are solved, the labeling precision is within + / -0.5 mm, the full-automatic labeling machine is suitable for various label sizes and materials, and efficiency and stability are improved.

The present invention provides a retainer for a rolling bearing that can stably maintain a low friction state even under severe lubrication conditions such as high-speed rotation by defining the surface roughness of the retainer using a plurality of three-dimensional surface roughness parameters, and a rolling bearing that uses the retainer. [Solution] The retainer 5 is a cylindrical resin retainer for a rolling bearing, and is formed with multiple pockets 6 that hold the rolling elements. The surfaces 6a that form the pockets 6 and at least one of the inner diameter surface 8 and outer diameter surface 9 of the retainer 5 have a value of A=(Sa / 10)+Str+(Spk / 10), which is calculated from the arithmetic mean height Sa, the aspect ratio Str of the surface texture, and the protruding peak height Spk, of 1.20 or more.

A dry gas seal assembly for use with a rotating machine that includes a rotating shaft, the seal assembly comprises a seal face bears a solid coating comprising molybdenum disulfide, graphene oxide, and optionally polydopamine, preferably wherein the graphene oxide to molybdenum disulfide ratio is 8:10 to 10:8. A method for making a dry gas seal assembly comprises coating a homogeneous dispersion of graphene oxide and molybdenum disulfide on a seal face.

The utility model discloses a reciprocating type product elevator, and relates to the field of product lifting, the reciprocating type product elevator comprises a frame body, a servo motor, a lifting chain and a material box used for placing products are arranged on the frame body, a conveying frame used for conveying the products is arranged on one side of the frame body, and the conveying frame and the material box are arranged in parallel; a positioning mechanism used for limiting products is arranged on the material box and comprises two limiting plates symmetrically arranged on the material box. Products are guided and centralized through the two guide plates, so that the phenomena of deviation and the like of the products can be avoided, the products can move into the material box at the moment, the positions of the products are fixed and limited through the two limiting plates, and therefore the phenomena of shaking, deviation and the like of the products during lifting can be avoided; and through the first rolling wheel, the second rolling wheel and the third rolling wheel, the product can be conveniently moved, friction force is reduced, and therefore stability and safety during operation can be improved.

We offer a gaming mouse pad with a hybrid structure that achieves a balance between smooth gliding and braking performance, while also combining visibility and aesthetic appeal. [Solution] This gaming mouse pad has a hybrid structure with an ultra-low friction material in the center and fine resistance fibers at the edges. Compared to conventional mouse pads, which had difficulty balancing gliding performance and braking performance, this mouse pad improves the balance of operability by placing an ultra-low friction material in the center and fine resistance fibers at the edges.

The invention discloses a MoS2-TiO2-polyimide composite film material and a preparation method thereof, and belongs to the technical field of polymer-based composite film materials. According to the preparation method, TiO2 nanowires are vertically grown on the surfaces of MoS2 nanosheets in an in-situ manner through MoS2-TiO2 hybridization, meanwhile, a strong heterojunction structure is constructed, a firm chemical bonding interface is formed, the excellent lubricating property of MoS2 and the excellent wear resistance and high bearing capacity of TiO2 are integrated, and functional complementation and synergistic enhancement are achieved; meanwhile, a polyimide matrix is bridged through a zinc ion coordination bond, the material is endowed with excellent mechanical strength and toughness, and due to the integrated design of lubrication, wear resistance and bearing, the material has the unique advantages of low friction coefficient, high wear resistance and high load at the same time; tests show that the MoS2-TiO2-polyimide composite film material has excellent photothermal conversion performance, mechanical property, thermal property and self-lubricating property.

The invention belongs to the technical field of high polymer materials, and particularly relates to a low-friction machinable fluorine-containing composite material as well as a preparation method and application thereof. The middle-low friction machinable fluorine-containing composite material is prepared from the following raw materials in percentage by mass: 80-95% of fusible polytetrafluoroethylene and 5-20% of filler, the filler comprises any one or more of graphite, carbon fiber and polytetrafluoroethylene (PTFE). The low-friction machinable fluorine-containing composite material provided by the invention has low friction coefficient and high compression strength at the same time.

The application discloses a drilling machine bed assembly, which comprises a long strip-shaped rack, a moving seat slidingly arranged on the rack along the length direction of the rack, a driving mechanism for driving the moving seat to slide, a guide rail and a guide piece slidingly matched and arranged between the moving seat and the rack, and a load-bearing assembly arranged on the moving seat, wherein the load-bearing assembly comprises a composite roller bearing, and the main roller and the side roller of the composite roller bearing roll on the rack along the length direction of the rack. The drilling machine bed assembly bears the pressure from the moving seat through the composite roller bearing in the load-bearing assembly, thereby reducing the friction between the moving seat and the rack, lowering the abrasion, reducing the abrasion between the guide piece and the guide rail when the moving seat moves, avoiding the shaking of the drilling tool during the movement of the drilling tool caused by the too large gap between the guide piece and the guide rail, thereby affecting the drilling efficiency, prolonging the service life of the guide piece and the guide rail, and avoiding the increase of the drilling cost caused by the frequent replacement.

The invention discloses a wide-temperature-range self-adaptive friction-reducing and wear-resistant chromium-containing refractory high-entropy alloy material and a preparation method thereof, and belongs to the technical field of wear-resistant alloy materials, and the high-entropy alloy material comprises the following raw materials in percentage by mass: Ta, Mo, Ti and Cr. The preparation method comprises the steps that Ta powder, Mo powder, Ti powder and Cr powder are weighed by mass, ball milling is conducted, then sintering is conducted through a spark plasma sintering method, and the wide-temperature-range self-adaptive anti-friction and anti-wear chromium-containing refractory high-entropy alloy material is obtained. By introducing the chromium element, the alloy can adaptively form an oxide layer with lubrication and protection effects in a wide temperature range from room temperature to ultrahigh temperature, so that the alloy shows excellent tribological performance and has extremely low friction coefficient and wear rate. The material has a wide application prospect in the fields of wear-resistant lubricating materials and high-temperature wear-resistant parts.

A device for use with a bed having a frame and a supporting surface includes a flexible sheet with a tether strap connected to the sheet and extending from the sheet. The flexible sheet has opposed top and bottom surfaces, with the top surface having a high friction material with a higher coefficient of friction as compared to the bottom surface, which includes a low friction material. The tether strap is configured for connection to the frame of the bed to secure the sheet in place. A system incorporating the flexible sheet may also include an absorbent pad configured to be placed on the top surface of the sheet, where the high-friction top surface resists sliding of the absorbent pad, as well as one or more wedges having a base wall that the wedge rests on and a ramp surface configured to confront the sheet when the wedge is placed under the sheet. The base wall and the ramp surface may also contain high friction and low friction materials, respectively.

The invention provides a high-pressure wear-resistant valve rubber. The valve rubber is prepared from the following raw materials in parts by weight: 100 parts of a polyurethane prepolymer, 20 to 30 parts of a chain extender, 12 to 18 parts of a polycaprolactone coated boron nitride / molybdenum disulfide composite material and 0.5 to 2 parts of an antioxidant. Wherein the polycaprolactone coated boron nitride / molybdenum disulfide composite material is obtained by polymerizing an amino silane coupling agent modified boron nitride / molybdenum disulfide composite material, triethyl aluminum and epsilon-caprolactone in an organic solvent at 35-45 DEG C in an inert atmosphere. A polycaprolactone-coated boron nitride / molybdenum disulfide composite material is used as a filler, and boron nitride / molybdenum disulfide as an inner core forms a synergistic structure of a reinforced substrate and a lubricating surface layer, so that high-pressure load bearing and friction coefficient reduction are facilitated; and the polycaprolactone flexible shell layer is compatible with the matrix, so that the filler is uniformly dispersed in the matrix.

This utility model discloses a telescopic pressing head for correction tape, relating to the field of correction tape technology. The telescopic pressing head provided by this utility model includes a tape outlet head, with protective plates at both ends. A sliding plate is connected to one side of the tape outlet head, and a first connecting plate is provided on the top of the sliding plate. Rotating shafts are connected to both ends of the first connecting plate, and a second connecting plate is connected to the other end of the rotating shafts. This utility model, by rotating a first rotating rod, causes a third connecting plate to rotate around the first rotating rod, causing a pulley to slide inside a first sliding groove, thereby rotating the second connecting plate and driving the sliding plate to telescopically move. The cooperation of these components results in low friction and low resistance during movement, achieving smooth movement and ensuring stable operation of the correction tape during telescopic and tape-out operations, avoiding damage caused by shaking or misalignment of the exposed tape outlet head.