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28 results about "Wear loss" patented technology

Bearing bush parameter determination method and device and bearing bush parameter determination system

The invention provides a bearing bush parameter determination method and device and a bearing bush parameter determination system.The method comprises the steps that design parameters of a bearing bush are obtained, and the design parameters at least comprise one or more of the curvature radius, the oil film thickness of lubricating oil, the oil film pressure and the viscosity of the lubricating oil; the abrasion loss of the bearing bush is obtained, and the abrasion loss is the material loss amount caused by abrasion of the bearing bush due to the friction effect; a target optimization algorithm is adopted for optimization, the design parameters are adjusted until the abrasion loss reaches the minimum value of the abrasion loss, the updated design parameters are obtained, and the updated design parameters are used for constructing the bearing bush. The method solves the problem of poor wear resistance of the bearing bush in the prior art.
Owner:WEICHAI POWER CO LTD

Lubricating coating and preparation method thereof

The invention provides a wear-resistant coating and a preparation method thereof, relates to the technical field of air bearings, and solves the technical problems that an existing air bearing coating is large in friction coefficient, insufficient in high temperature resistance, large in wear-resistant weight loss value and incapable of meeting the requirement for long start-stop service life. According to the wear-resistant coating, alcohol-soluble silane resin and high-temperature-resistant resin in a specific proportion are used as binder matrixes, lubricating wear-resistant fillers such as molybdenum disulfide and polytetrafluoroethylene are compounded, and a solvent and assistant system is optimized. The coating provided by the invention has the characteristics of low friction, high wear resistance and high temperature resistance, and can meet the use requirements of the air bearing under severe working conditions.
Owner:GREE (CHENGDU) ELECTRIC APPLIANCES CO LTD +1

Antibacterial and wear-resistant functional integrated PP plastic part for automotive trim and preparation method of antibacterial and wear-resistant functional integrated PP plastic part

PendingCN121699287APolymer sciencePolyolefin
The invention discloses an antibacterial and wear-resistant functional integrated PP plastic part for an automotive trim and a preparation method of the antibacterial and wear-resistant functional integrated PP plastic part, and belongs to the technical field of automotive trim materials. The plastic part is composed of a modified PP matrix, a coated antibacterial system, a synergistic wear-resistant system and an auxiliary agent, the modified PP matrix is a homopolymerized PP and copolymerized PP blend, the antibacterial system is coated and compounded by nano-silver-zinc and maleic anhydride grafted PP, and the wear-resistant system is formed by synergism of modified talcum powder and polyolefin wax micro-powder. The preparation method comprises the steps of antibacterial agent pretreatment, premixing, blending extrusion and injection molding. The antibacterial rate is larger than or equal to 99%, the 200,000-time friction wear loss is smaller than or equal to 0.04 g, the antibacterial rate after 800-time friction is still larger than or equal to 96%, meanwhile, the notch impact strength is larger than or equal to 12 kJ / m < 2 >, the VOC release amount is smaller than or equal to 0.4 mg / m < 3 >, the problems that an existing PP interior trim part is poor in antibacterial dispersion and unbalanced in wear resistance and toughness are solved, and the PP interior trim part is suitable for high-frequency contact interior trim parts.
Owner:SHANGHAI PRET COMPOSITES +3

Multi-purpose testing device and method suitable for medium and large-size radial spherical plain bearings

The invention discloses a multipurpose testing device and method suitable for medium and large-size centripetal spherical plain bearings. The device is mainly composed of a base, a test bearing device, an axial loading assembly and a radial loading assembly, wherein the test bearing device, the axial loading assembly and the radial loading assembly are installed on the base. Wherein the test bearing device integrates a test base, a transmission rotating shaft, a front-middle-rear three-section type supporting assembly, a to-be-tested bearing assembly, a torque sensor and a wear loss measuring assembly; the axial loading assembly and the radial loading assembly can operate independently and can also work cooperatively, and the combined load can be applied to the bearing accurately. The device has the basic advantages of being stable in structure and high in bearing capacity, can simulate complex combined load working conditions, achieves multi-parameter real-time monitoring, can be adapted to tests of medium and large radial spherical plain bearings of various specifications, and is of great significance in promoting research and development and performance verification of high-end spherical plain bearings.
Owner:SHANDONG HALIN BEARING IND

Equipment key component wear prediction method based on multi-physical model fusion

The invention discloses an equipment key component wear prediction method based on multi-physical model fusion, and relates to the technical field of equipment key component wear prediction, and the method comprises the steps: firstly constructing a plurality of physical wear models representing the wear loss evolution under processing parameters in the cutting process of an equipment key component; a plurality of physical wear models are integrated into the same physical information neural network (PINN) in parallel, so that each physical wear model can reflect the wear extent evolution of the key parts of the equipment under any processing parameter, and the weight of each empirical formula is adaptively adjusted through an attention mechanism; according to the method, a multi-physical wear model fused physical information neural network model is formed, and the model can consider the influence of different processing conditions such as cutting speed, feed rate and cutting depth on the wear of the key parts of the equipment at the same time, so that the model can perform high-precision prediction on the wear loss of the key parts of the equipment under complex working conditions.
Owner:XIAN UNIV OF POSTS & TELECOMM

Lubricating and cooling fluid for an electric motor system having an auxiliary fluid pumping system

A durable lubricating and cooling fluid for an electric motor system including an auxiliary pumping mechanism. The fluid includes a lubricating base oil, a sulfur system, a nitrogen system, and a phosphorous antiwear system. The lubricating and cooling fluid includes selected amounts of sulfur, nitrogen, and phosphorus provided by the system to provide acceptable wear and friction performance, electrical conductivity, and the ability to minimize wear loss of pumping components making the fluid suitable for use in electric motor system.
Owner:MERCEDES BENZ GROUP AG +1

Cr-fe alloy layer for barrel life extension and method of making the same

The application belongs to the technical field of alloy materials, and relates to a Cr-Fe alloy layer for prolonging the service life of a barrel and a preparation method thereof. The Cr-Fe alloy layer comprises Cr: 45-85wt%, Fe: 14-54wt%, C: 0-1.2wt%, and O content is less than or equal to 0.3wt%; the Cr-Fe alloy layer is prepared by laser processing, the microstructure is mainly BCC phase, and 3-8% of Cr 23 strengthening phase is uniformly precipitated; the Cr-Fe alloy layer is metallurgically combined with the barrel substrate, the surface Vickers hardness is 400-600HV, and the mass loss is less than or equal to 0.01g in 500 high-temperature erosion wear cycle tests. The Cr-Fe alloy layer with specific components is formed by optimizing laser processing parameters, microcracks of the hard chromium plating layer are effectively repaired, the high-temperature erosion wear loss rate is reduced, and the service life of the barrel is prolonged.
Owner:NINGBO UNIV +2

A distributed detection combination jaw plate and jaw crusher

ActiveCN224541812UReflect wear and tearStrain gaugeMechanical engineering
The utility model discloses a kind of distributed detection combination jaw plate, including jaw plate body, data collection module, computing module, multiple first strain gauges and multiple second strain gauges, multiple first strain gauges are scattered and attached to the back of jaw plate body, the back of jaw plate body is scattered and is equipped with multiple bosses, multiple second strain gauges are attached to the side of multiple bosses, each first strain gauge and each second strain gauge are connected with data collection module, data collection module is connected with computing module, computing module can carry out wear loss calculation according to the data collected by data collection module, so wear loss obtained can be judged whether it needs to be replaced jaw plate body, and will not be affected by the movement of jaw plate body in the work of crusher and dust, can timely and accurately reflect the wear condition of jaw plate body. The utility model discloses a kind of jaw crusher including above-mentioned distributed detection combination jaw plate.
Owner:JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD +1

High-pressure roller mill wear prediction and service life evaluation method based on DEM-FEM coupling simulation

The invention discloses a high-pressure roller mill wear prediction and service life evaluation method based on DEM-FEM coupling simulation. The method comprises the following steps: constructing a roller mill simplified model through modeling software; the method comprises the following steps: simulating crushing and contact behaviors of grinding material particles based on a discrete element method (DEM), and quantifying interaction between the particles and interaction between the particles and a roller surface by adopting a Hertz-Mindlin contact model and a Tavaries crushing model; analyzing stress and deformation characteristics of a roll shaft structure based on a finite element method (FEM), mapping particle contact force output by discrete elements into a distributed load of a finite element model by utilizing a mechanical equilibrium equation, and solving roll shaft contact stress, strain and plastic deformation distribution; and calculating the instantaneous wear loss based on an Archard wear model, converting the instantaneous wear loss under multiple working conditions into a damage index in combination with a linear cumulative damage theory, and judging the service life of the roller surface when the total damage index reaches a threshold value. According to the invention, accurate prediction of roller surface wear and scientific evaluation of service life under the action of multiple working conditions are realized.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

A method for preparing wear-resistant and corrosion-resistant composite coating on the surface of titanium alloy

The application discloses a preparation method of a wear-resistant and corrosion-resistant composite coating on a titanium alloy surface. The titanium alloy substrate is subjected to laser fusion treatment to prepare laser fusion TiN, and particle reinforced metal-based powder is used to prepare a particle reinforced metal cladding layer on the titanium alloy surface through laser cladding. The reinforcing particles are cBN, TiN, TiB2 or CrB2 particles, and the metal base is a high-entropy alloy of NiCr, CoCr, CoCrFeNiTi or AlCrFeNiTi. In the wear-resistant and corrosion-resistant composite coating prepared on the titanium alloy surface, the heat stress in the cladding layer during the subsequent laser cladding process is relieved, the forming quality of the cladding layer is excellent, and the composite coating has excellent wear resistance. The wear loss is 2.02*10 ‑8 g / N*m, which is only 6.2% of the substrate wear loss. The substrate surface is subjected to laser fusion treatment, and the negative influence of the composite coating on the tensile strength and thermal stress zone of the substrate is effectively relieved.
Owner:SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP

High-thermal-conductivity high-hardness plastic mold die steel and preparation method thereof

The application discloses a high-thermal-conductivity and high-hardness plastic mold steel and a preparation method thereof. In view of the low thermal conductivity, insufficient hardness and poor wear resistance of the existing plastic mold steel, the application realizes the optimization of the comprehensive performance of the material by directional modification of nano silicon nitride, titanium alloy powder and graphene, in combination with a specific component proportion and a preparation process. The mold steel is composed of a 42CrMo steel base body, modified nano silicon nitride, modified titanium alloy powder, modified graphene and alloy elements such as vanadium iron and niobium iron. The preparation process comprises the steps of batching, mixing, vacuum induction smelting, forging, heat treatment and finishing. Through the synergistic effect of the modified material and the alloy elements, the hardness of the mold steel reaches 62-65HRC, the thermal conductivity is 48-55W / (mK), the tensile strength is 1250-1300MPa, the impact toughness is 25-28J / cm 2 , and the wear loss is 6.8-8.5mg, the interface compatibility of the reinforced phase and the base body is improved, and the balance among the thermal conductivity, the hardness, the toughness and the wear resistance is realized.
Owner:YANTAI UNIV

Plunger pair abrasion process test method considering three-body abrasion caused by pollution particles

The invention provides a plunger pair abrasion process test method considering three-body abrasion caused by pollution particles, and belongs to the field of fluid pressure and the field of abrasion friction tests. According to the method, on the basis of a single plunger pair test bed with controllable pollution degree, the oil pollution degree is monitored in real time through an online particle counter, the oil pollution degree is regulated and controlled through a reversing valve and a filter, so that the test oil pollution level is stabilized in a set range, and a plunger pair abrasion test is carried out under the condition; and through staged wear morphology and wear loss measurement and analysis, a wear evolution rule of adding the pollution particles under a specific pollution condition is obtained. According to the invention, on the premise of not being interfered by other friction pairs, quantitative evaluation and comparative research of single-friction plunger pair pollution three-body wear can be realized, the influence of pollution particles on the wear process is explored, and a test method is provided for pollution control, material and surface engineering anti-attrition and wear-resistant verification and life evaluation.
Owner:ZHEJIANG UNIV

High-strength wear-resistant plastic material and method for producing same

The application relates to the technical field of polyethylene, and discloses a high-strength wear-resistant plastic material and a preparation method thereof, wherein 50-70 parts of polyethylene resin, 3-8 parts of polybutadiene grafted polysiloxane, 6.2-10.7 parts of fillers, 30-50 parts of silicone rubber and the like are mixed and vulcanized to obtain the high-strength wear-resistant plastic material. The polybutadiene grafted polysiloxane plays a role in compatibilizing the polyethylene and the silicone rubber, improves the interfacial compatibility of the polyethylene and the silicone rubber, significantly improves the tensile strength and impact strength of the plastic material, the compatibility of the silicone rubber and the polyethylene is good, the silicone rubber is uniformly dispersed in the polyethylene matrix, the friction and wear loss of the polyethylene is reduced, and the wear resistance is improved.
Owner:DONGGUAN DAYUAN PLASTICS TECH CO LTD

Al2O3-TiB2 double-phase composite titanium-based coating and preparation method thereof

The invention belongs to the technical field of double-phase composite titanium-based coatings, and relates to an Al2O3-TiB2 double-phase composite titanium-based coating and a preparation method thereof. The Al2O3-TiB2 double-phase composite titanium-based coating is prepared from the following raw materials: titanium-based powder, Al2O3 powder and TiB2 powder; based on the total weight of the raw materials of the Al2O3-TiB2 double-phase composite titanium-based coating, the content of the TiB2 powder is 25-50 wt%, the content of the Al2O3 powder is 15-25 wt%, and the balance is the titanium-based powder. According to the formula of the high-proportion Al2O3-TiB2 double-phase composite titanium-based coating, the hardness of the double-phase composite titanium-based coating prepared through laser cladding according to the formula can be 3 times that of a TC4 substrate, the abrasion loss of the double-phase composite titanium-based coating can be 0.12 times that of the TC4 substrate, and the double-phase composite titanium-based coating has good abrasion resistance and high hardness. The preparation method provided by the invention is simple and operable, and can realize large-scale production.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Unmanned vehicle tire replacement method and device and unmanned vehicle

The invention discloses an unmanned vehicle tire replacement method and device and an unmanned vehicle, and belongs to the field of unmanned driving. The tire replacement method comprises the steps that after the remaining life of each tire on the unmanned vehicle is obtained, the life difference degree of the unmanned vehicle is determined based on the remaining life, and when the life difference degree is larger than the corresponding preset life difference degree, a tire replacement decision is triggered. According to the scheme, whether the tire is replaced or not is judged according to the service life difference degree, the problem that tire replacement and the like completely depend on subjective judgment in a traditional tire management technology is solved, and when the service life difference degree is larger than the corresponding preset service life difference degree, the tire replacement time is shortened, and the tire replacement efficiency is improved. The tire replacement decision is triggered at the moment, so that the small wear loss difference between the tires can be ensured, and the actual service life of the tires is prolonged.
Owner:EACON TECHNOLOGY CO LTD

Lubricating and cooling fluids for electric motor systems with auxiliary fluid pumping systems

A durable lubrication and cooling fluid for an electric motor system including an auxiliary pumping mechanism. The fluid comprises a lubricating base oil, a sulfur system, a nitrogen system, and a phosphorus antiwear system. The lubricating and cooling fluid contains selected amounts of sulfur, nitrogen, and phosphorus provided by the system to provide acceptable wear and friction performance, electrical conductivity, and ability to minimize wear loss of pumping components, making the fluid suitable for use in an electric motor system.
Owner:AFTON CHEM GMBH +1

Method for the collaborative control of a multi-channel braking system of a mining conveyor machine

Method for the collaborative control of a multi-channel braking system of a mining hoist, wherein the control method is based on the multi-channel braking system, the multi-channel braking system comprises eight channels, a disc brake (3) is arranged on each of the channels, and eight disc brakes (3) are symmetrically distributed on both sides of a brake disc (2), wherein each of the disc brakes (3) is controlled by an independent proportional control valve (4), and an oil pressure sensor (5) and a displacement sensor (6) are arranged on each of the disc brakes (3), and the control method comprises the following steps: Step S1, respective measurement, using the displacement sensor (6), an initial position information x is0 and x iy0 a brake shoe and an initial thickness Δ i0 the brake shoe in a case in which each of the disc brakes (3) is fully released or compressed, where i denotes an i-th disc brake (3); Step S2, recording, using the displacement sensor (6), a position x is the brake shoe with the disc brake fully released (3) before a brake command is issued, and a position x iy the brake shoe with the disc brake fully compressed (3) after the braking command has been issued when a conveying system is put into operation in practice; Step S3, calculating an abrasion loss Δ i the brake shoe and a total abrasion loss Δ sum = ∑ i = 1 n Δ i of the brake shoe in the brake system according to the measured position information of the disc brake (3), where n denotes a number of disc brakes (3) and an average wear loss of the brake shoe is defined as Δ avg = ∑ i = 1 n Δ i / n This refers to calculating a percentage share λ. avgof the average wear loss of the brake shoe in relation to the total wear loss of the brake shoe according to the physical quantities, wherein a calculation formula for the percentage share λ avg is: λ avg = Δ avg Δ sum = 1 n , Step S4, Calculating a percentage λ i of an abrasion loss of the brake pad of the i-th disc brake (3) in relation to the total abrasion loss and an abrasion loss rate η i the brake shoe of the i-th disc brake (3), wherein the calculation formulas for the percentage λ i and the wear loss rate η i ring: λ i = Δ i Δ sum = ( xiy − xis ) − ( xiy 0 − xis 0 ) ∑ i = 1 n Δ i , η i = Δ i Δ i 0 ; Step S5, Subdivision of a wear loss degree of the brake pad of the disc brakes (3) by comparison of λ i with λ avgin three abrasion loss levels; classification in the case of λ i ≤ k1λ avg , as abrasion loss level I, classification in the case of k1λ avg < λ i ≤ k2λ avg , as abrasion loss level II and classification in the case of λ i > k2λ avg , as abrasion loss stage III; application of three different distribution agents to a required total braking force F ref corresponding to the different wear loss levels of the brake shoe of the disc brakes (3), where k1 and k2 each denote coefficients for subdividing the wear loss level of the brake shoes; Step S6, with a total braking force F sum , which follows a principle of equal distribution, setting a braking force distribution value F i the disc brakes (3) as F i = F sumn in a case where the wear loss level of the brake shoe of the disc brakes (3) is wear loss level I; Step S7, with a total braking force F sum , which follows a proportional distribution principle, determining the braking force distribution value F i the disc brakes (3) as F i = F sum ⋅ Δ i 0 − Δ i ∑ i = 1 n ( Δ i 0 − Δ i ) in a case where the wear loss level of the brake shoe of the disc brakes (3) is wear loss level II; Step S8, with a total braking force F sum , which follows an index distribution principle, determining the brake force distribution value F i the disc brakes (3) as F i = F sum ⋅ e ( Δ i 0 − Δ i ) ∑ ine ( Δ i 0 − Δ i ) in a case where the wear loss level of the brake shoe of the disc brakes (3) is wear loss level III; Step S9, Implementing a closed tracking control of the disc brake (3) for the brake force distribution value F controlled by a proportional directional control valve (4). iusing a pressure signal feedback from the oil pressure sensor (5) arranged on an oil inlet chamber of the disc brake (3), after a distribution of brake pressure for the disc brake (3) has been completed; and Step S10, completing a braking task, implementing a dynamic distribution of the braking force and repeating steps S1 to S9 in a case where a subsequent braking operation is required.
Owner:CHINA UNIV OF MINING & TECH

Lubricant and coolant for an electric motor system with an auxiliary pump system

PendingDE102024139923A1AdditivesElectric machineBase oil
Long-life lubricating and cooling fluid for an electric motor system with an auxiliary pump mechanism. The fluid contains a lubricating base oil, a sulfur system, a nitrogen system, and a phosphorus anti-wear system. The lubricant and cooling fluid contains selected amounts of sulfur, nitrogen, and phosphorus, supplied by the system, to ensure acceptable wear and friction properties, electrical conductivity, and the ability to minimize wear loss in pump components, thus making the fluid suitable for use in an electric motor system.
Owner:AFTON CHEM GMBH +1

Sc, zr composite microalloyed high temperature wear-resistant 6061 aluminum alloy and its preparation method by deformation aging

The application discloses a kind of Sc, Zr composite microalloying high-temperature wear-resistant 6061 aluminum alloy and its deformation aging preparation method.The aluminum alloy is composed of the following components: Sc, Zr, Mg, Si, Cu, the balance is Al and inevitable impurities.Preparation method includes: smelting casting→homogenization→solid solution treatment→cold rolling→aging treatment.The application forms Al3(Sc,Zr) core-shell nano precipitate phase by Sc, Zr synergistic microalloying, combined with dislocation strengthening introduced by deformation aging, solves the defect of abnormal deterioration of single Sc microalloying in 120℃ medium temperature zone wear resistance, the tensile strength of the obtained alloy is increased by ≥23% compared with conventional 6061 aluminum alloy, and the wear loss at 150℃ is reduced by ≥26%, suitable for high-temperature heavy-load working conditions of aluminum alloy moving parts.
Owner:GUANGXI UNIV

A multi-tread new process pneumatic tire and a preparation process thereof

The application relates to the tire manufacturing technical field and discloses a multi-tread new-process pneumatic tire and a preparation process thereof, which comprises the following component materials: 8-19 parts of silica rubber, 6-17 parts of butadiene-acrylonitrile rubber, 12-28 parts of base rubber, 1-4 parts of adhesive rubber sheet, 4-18 parts of cross-linking agent, 2-8 parts of filler A, 2-8 parts of filler B, 3-7 parts of filler C, 4-8 parts of adhesive, and 1-10 parts of adhesive aid. Through the multi-tread process, the improved multi-tread pneumatic tire shows better wear resistance, the wear loss is obviously reduced, the tire sample has a longer service life in the use process, and through the cooperation of the silica rubber and the butadiene-acrylonitrile rubber, the improved multi-tread pneumatic tire can increase the tire grip and the anti-skid performance while the wear is controlled, and the multifunctionalization of the tire is realized.
Owner:BLACK CAT TIRE (FUJIAN) CO LTD

Tire wear prediction method and device, electronic equipment and computer program product

The invention discloses a tire wear prediction method and device, electronic equipment and a computer program product. The method comprises the steps that the longitudinal acceleration, the slip angle and road spectrum excitation data of a to-be-detected tire of a vehicle are obtained, the longitudinal acceleration is used for determining the tire longitudinal force of the to-be-detected tire, and the road spectrum excitation data is used for determining the tire normal force of the to-be-detected tire; determining slip rates corresponding to the tire longitudinal force and the tire normal force according to a preset slip rate table; the slip angle and the slip rate are analyzed by adopting a friction energy model under a preset composite slip condition, the friction energy density of the contact surface of the tire to be detected on the unit area is obtained, and the friction energy density is a direct physical representation of the wear rate; and predicting the wear of the tire to be detected according to the friction energy density. The technical problem of low prediction precision of tire wear in the prior art is solved.
Owner:SAILUN GRP CO LTD

Method for synergistically preparing wear-resistant coating slurry based on high and low molecular weight surface activity

The invention discloses a method for synergistically preparing wear-resistant coating slurry based on high and low molecular weight surface activity, which comprises the following steps: compounding sodium methylene bis-naphthalene sulfonate, DOE120, SPAN-40 and PEO4000 into a synergistic active agent, adding Al (HPO) and ZrOCl8HO, carrying out 80W ultrasonic deagglomeration for 10 minutes, carrying out 300rmin planetary ball milling for 60 minutes, adjusting the pH value to 6-7, and standing for 24 hours to obtain the slurry. The average particle size of the slurry is 0.21-0.24 [mu] m, the hardness of the coating is 2-3H, and the wear resistance reaches 0.12-0.15 g. When the coating is applied to a wind power blade, the annual abrasion loss is reduced to 0.15 mm, and the maintenance period is prolonged by 300%; the abrasion of the power battery bottom plate is greatly reduced, and the service life exceeds 5 years. The problems that traditional slurry is poor in stability and high in wear rate are solved, the slurry adapts to extreme working conditions, the equipment operation and maintenance cost is remarkably reduced, and the slurry has important industrial application value.
Owner:FUJIAN YUANSHENG AUTO PARTS TECH CO LTD

Clutch full life cycle prediction method, device and equipment

The invention discloses a clutch full life cycle prediction method, device and equipment, and relates to the technical field of automobile transmission systems.The method comprises the steps that clutch full life cycle prediction related data is collected, and a load signal weighted average value is obtained through calculation; based on the collected environment real-time temperature and vehicle real-time load data, a coupling wear coefficient between the temperature and the load is calculated; on the basis of the load signal weighted average value, the coupling wear coefficient and clutch pedal stepping time data, real-time wear loss and accumulated wear loss of a set unit mileage are obtained through calculation; calculating a correction coefficient according to the actual wear detection values under different mileages so as to correct the real-time wear loss of the set unit mileage, thereby correcting the accumulated wear loss; according to the corrected accumulated abrasion loss, the real-time abrasion loss of the set unit mileage and the total design abrasion loss of the clutch, the residual life of the clutch in the full life cycle is predicted. The service life of the clutch can be accurately predicted.
Owner:DONGFENG COMML VEHICLE CO LTD

High-wear-resistance plug valve

The invention discloses a high-abrasion-resistance plug valve, and belongs to the technical field of plug valves, the high-abrasion-resistance plug valve comprises a plug valve mechanism and a valve control mechanism, a valve adjusting mechanism is arranged in the plug valve mechanism, the plug valve mechanism comprises a control valve body, and two limiting sleeves are fixedly connected to the upper portion of the control valve body; through rotation of the wear-resistant valve element, the wear-resistant valve element generates upward thrust on the protruding seat through the valve wheel on the lower portion, the middle of the wear-resistant valve element and the middle of the control valve body are in the trapezoid design with the narrow upper portion and the wide lower portion, then wear of the wear-resistant valve element can be reduced, the wear resistance of the wear-resistant valve element is guaranteed, and meanwhile more reliable sealing can be achieved by moving the wear-resistant valve element upwards; and after long-term use, even if the wear-resistant valve element is worn to a certain extent, the wear-resistant valve element can move upwards through adjustment of the bottom adjusting assembly, so that the wear loss is compensated, it is ensured that the wear-resistant valve element and the control valve body are always kept in close contact, and the problems that leakage is prone to occurring due to wear and the replacement cost is high are solved.
Owner:YONGFENG (CHONGQING) NEW MATERIALS TECH RES INST CO LTD

Additive for improving abrasion resistance of ultrathin asphalt layer

The invention discloses an additive for improving the abrasion resistance of an ultrathin asphalt layer and application of the additive, and belongs to the technical field of road engineering materials. The additive is prepared by compounding 50%-60% of plasma grafting modified nano electric arc furnace steel slag clusters, 20%-30% of steel slag epoxy microcapsules and 3%-5% of a silane coupling agent. The additive is doped in an amount which is 0.5 to 1.0 percent of the total mass of the ultra-thin asphalt mixture, the initial hardness and the wear resistance of a base layer are remarkably improved by nano steel slag clusters, and microcapsules are broken under the triggering of induction heating to release an epoxy repairing agent to realize damage self-healing. The invention also provides a corresponding mixture formula and a special construction process comprising low-temperature microcapsule addition and later induction activation. The Cantabro abrasion loss of the ultra-thin asphalt layer formed by the invention is less than or equal to 5%, the abrasion recovery rate after induction healing is more than or equal to 80%, and the ultra-thin asphalt layer can be repeatedly healed for multiple times, so that the service life of a pavement is greatly prolonged.
Owner:GUANGDONG UNIV OF TECH

Fe-Ni-based alloy coating with high hardness, high wear resistance and high impact toughness as well as preparation method and application of Fe-Ni-based alloy coating

The invention discloses a Fe-Ni-based alloy coating with high hardness, high wear resistance and high impact toughness as well as a preparation method and application thereof, and belongs to the technical field of metal surface modification. The alloy coating comprises the following components in percentage by weight: multicomponent alloy elements such as Ni, Cr and the like, rare earth oxides of Y2O3 and La2O3, and the balance of Fe; the preparation method comprises the steps of matrix pretreatment, powder preparation, infrared preheating, laser cladding, multi-stage heat treatment and post-treatment. The coating is high in hardness, large in impact toughness and small in abrasion loss, the contradiction that a traditional coating is hard and brittle can be effectively solved, the coating can be suitable for being manufactured into an integral wear-resisting plate and can also be manufactured into prefabricated plate pieces in special shapes, and the service life is prolonged.
Owner:JIAHE FEIHENG ALLOY CASTING CO LTD

Wear self-testing eccentric roller type crusher lining plate structure and wear measuring method thereof

The invention relates to the technical field of crusher lining plate abrasion monitoring, in particular to an eccentric roller type crusher lining plate structure with an abrasion self-testing function and an abrasion measuring method of the eccentric roller type crusher lining plate structure. The plurality of wear detection rods are embedded into the arc-shaped lining plate in a matrix form and are used for monitoring the wear condition of the arc-shaped lining plate in real time; a plurality of ultrasonic thickness measuring devices are embedded into the side, making contact with the arc-shaped lining plate, of the adjustable rack in a matrix mode, and the measuring end faces of the ultrasonic thickness measuring devices face the arc-shaped lining plate and are used for measuring the thickness of the arc-shaped lining plate in real time; and the upper computer is in communication connection with the ultrasonic thickness measuring equipment and the wear detection rod and is used for reading the wear condition and the thickness of the arc-shaped lining plate. According to the invention, by combining the advantages of two measurement modes of ultrasonic thickness measurement and synchronous wear measurement, the wear loss distribution condition of the crusher lining plate is output in real time.
Owner:JILIN UNIVERSITY

Abrasion compensation method for grinding sleeve

The invention relates to a grinding sleeve wear compensation method which comprises the following steps: 1, in an offline preparation stage, carrying out model parameter calibration to obtain specific numerical values of a wear coefficient, a temperature correction coefficient, a feed rate correction coefficient and a viscosity correction coefficient, and storing the specific numerical values to an equipment control module; 2, in the online operation stage, real-time data collection is carried out, and collected data comprise grinding contact pressure, the rotating speed of a grinding shaft, the temperature variation, the workpiece feeding speed and the viscosity of a grinding medium; 3, according to the established actual wear predicted value model, carrying out real-time prediction calculation on the wear loss to obtain an actual wear predicted value; 4, a compensation algorithm is selected and executed, if the equipment is pressure controllable equipment, a pressure compensation algorithm is executed, and if the equipment is pressure fixed equipment, a feeding speed compensation algorithm is executed; and 5, carrying out iterative optimization on the precision of the actual wear predicted value model. The problems that a traditional grinding sleeve is large in abrasion prediction deviation and poor in compensation algorithm adaptability are solved, and the method is particularly suitable for scenes such as precise grinding of ship inertial navigation equipment and the like with extremely high machining precision requirements.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST +1