Research on Fault Diagnosis of Electric Actuator

Author: Ran Ying; high Shao Kun Abstract: For the past Actuator Fault Diagnosis is based primarily on the level of simulation, but it is not ideal in practical applications. In view of the above situation, some practical diagnostic methods and troubleshooting methods are put forward by deeply analyzing the fault characteristics of actuators. These methods do not need to establish a complex mathematical model of the actuator, but through the analysis of the input signal and output signal characteristics of the fault diagnosis, with the simple operation, quick judgment, low cost. These troubleshooting methods, as long as the appropriate signal acquisition fault diagnosis can be applied to electric actuators and other types of actuators. 0 Introduction With the rapid economic development in our country, modern industrial and mining equipment are increasingly oriented towards large-scale, complicated and intelligent development. In modern manufacturing processes such as large-scale thermal power plants, the control system often includes hundreds of control loops. Traditional parameter alarm and chain protection systems can no longer meet the needs of modern production processes. In today's computer control systems, hardware and software reliability and stability have been very high, and sensors and actuators have become the main reason for the control system failure. According to statistics, the sensor and actuator failures accounted for about 80% of the total failure. In this case, it is very important to diagnose the fault of the control system [1]. In the past, the failure analysis of the implementation was mainly based on the simulation level or the corresponding model was established for analysis [2-3]. Such studies tend to get better results in the simulation process, but they do not meet the needs of production [4]. This article focuses on the study of the actual actuator principle, based on the analysis of the principle of the actuator and the cause of the failure, put forward some practical solutions. 1 actuator works Actuators are divided into pneumatic actuators, electric actuators and hydraulic actuators, this mainly introduces dkj angular actuator [5]. dkj angle travel electric actuator principle shown in Figure 1. Figure 1, the working principle of the electric actuator Figure 1: ii for the input current that is instructions; if for the transmitter feedback current; output θ for the actuator rotation angle [1]. Overflow: hidden;} [Buy] Fire Pump, Spray Pump, Sewage Pump [Buy] Bearing Accessories [Buy] Air Lock Valve [Buy] Signal Amplifier [ Purchase】 valve 【Purchase】 Centrifugal pump 【Purchase】 Vertical multi-stage pump 【Purchase】 Cylinder 【Purchase】 Speed ​​?? inverter motor Previous: Installation, maintenance and operation of the valve Next: Installation instructions of the valve (in English and Chinese ) Var cpro_id = "u2852961"; Especially recommended resistance Chi single screw pump advantages and main purposes High-quality plunger pump enterprise "beachhead battle" Shanghai Shenfu Li plastic industry new benchmark valve Market Analysis: Valve market turnover of up to 150 billion yuan 2018 Xiamen International vending machines and self-service products Exhibition Venue - Time related articles Product Guide Technical Interpretation Media Focus Exhibition Information Interpretation Electric actuator causes shocks and coping methods Electric actuator control precision What are the factors? · Interpretation of the reasons for the electric actuator vibration and coping methods · Electric actuators affect the control of what are the factors? · 20DBM permanent magnet stepper linear motor actuator with excellent performance · Pneumatic Actuator working principle (single role, double acting) · Maxtor debut 2016 multinational instrumentation exhibition to help pneumatic actuator industry development · Maxtor debut Multi-national instrumentation exhibition, and promote the development of pneumatic actuator industry · China's pneumatic actuator market road wider and wider · Pneumatic actuator working principle and basic structure Compared with the electric actuator pneumatic actuator What are the advantages? Pneumatic actuator advantages and disadvantages comparison · Compared with the electric actuator pneumatic actuator What are the advantages? · Comparison of the advantages and disadvantages of pneumatic actuators · Analysis of the control methods of pneumatic actuators · Pneumatic actuators also have far-reaching significance of energy conversion · How to revitalize the pneumatic actuator industry? · Pneumatic actuators have far-reaching value for energy conversion · Pneumatic actuator industry trends · Pneumatic actuators technical interpretation Interview with enterprises News Industry Research Exhibition Style Chengdu speed up the construction of the exhibition ecosystem Ecology strive to form a billion industry in 2020 Xinhua News Agency Interview with Yao Rui, Curator of China Pavilion, Astana Expo · Chengdu Accelerates Ecosystem Construction of Convention Complex, Striving to Create Hundreds Billions of Industries by 2020 · Xinhua News Agency Issues China Pavilion, Astana Expo Hall Interview with Chang Yao Rui · Interview with Wang Dongxu: "Hui Exhibition" devotes itself to provide "intelligent information" service for the exhibition · Interview with Pan Jianjun: Miao Convention & Exhibition to create "upgraded version" · Northeast Light Alloy Company Casting Plant Yang Haifeng: Light and New Technology · Exclusive Interview with FICO General Manager Zhu Longwei: Pumps Need to Keep Up and Down the Line · Young Technicians Bravely Consider Designing Vibration Molds to Succeed · Wheel Motorists: Transformation and Upgrading Need Foresight Thinking OSON Pumps Industry - China's national brands of industrial pumps: large-diameter diesel self-priming sewage pump technology to fill the domestic Bai Ousun pump through audits in the petrochemical audit, the official became the long-axis pump, and other material procurement suppliers · Olsen Pump - the national brand of industrial pumps in China: Large-diameter diesel self-priming sewage pump technology to fill gaps in the domestic · Olsen pump Industry through the audit of Sinopec audits, the official became the long axis of the petrochemical pump and other material procurement suppliers · 7 contained a strong rise of innovation Chiafei pump Qiaotuo membrane pump market · Shanxi Yu fiber pump independent research and development of carbon fiber pump to break the monopoly of European and American countries · High-concentration brine immersion electrodialysis process Liaoning Yi Chen Mead Tim green industrial water treatment · Secret Hualing superhard latest R & D products: Casting grinding tools · Blue collar environment: to seize the environmental protection equipment manufacturing technology Heights · Generous technology into the ammonia escape monitoring market Peak turn around the valve Market Analysis: Valve market turnover of up to 150 billion yuan What is distributed photovoltaic? How the industry prospects? · Valve market analysis: the valve market turnover of up to 150 billion yuan · Marine compressors are still opportunities! What is distributed photovoltaic? How the industry prospects? · Environmental protection equipment manufacturing industry huge industry output value scale will reach trillion yuan · Volatile organic matter management situation analysis focus and difficulty respectively where? · Products and services are air heat pump distributors to open up the market the biggest backing · Environmental protection industry promising growth rate of over 20% Environmental protection concept can be layout in advance · Has started commercial super battery What? How far away from the realization of industrialization of hydrogen fuel cell? 2016 Yiwu Fair is about to close the scene is still lively extraordinary Hydrogen fuel cell from the realization of the industrialization development how far? · Yiwu Fair loading the upcoming closing of the exhibition site is still lively and extraordinary · I am in Yiwu fair site where are you? · With you to feel the distinctive 2016 Yiwu Exposition · Fifth China Asia Europe Exposition Pavilion exhibition site · 2016 Xiamen 98 CIFIT interesting rich featured booth full of wonderful ideas · 2016 Xiamen 98 CIFIT scene Eye-catching exotic models · 2016 Xiamen 98 CIFTS abnormally hot video broadcast project policies and regulations Exhibition News Hai'an CNC die forging hammer CT88KA-80 forging production line forging Aiwa Bearing · MSC CNC forging hammer CT88KA-80 transformation tools Forging production line · Aihua Bearing · ORT-250 electric balers electric steel balers imported electric balers · ZP323 Shanghai balers Shanghai strapping machine straw baler · KZ-32-19 pneumatic combination strapping machine combined steel balers Combination of steel balers · Pneumatic plastic band balers · Shanghai separate steel balers · Metal buckle steel balers manufacturers of submersible sewage pump tender procurement (CRUCG-CSYHY-AZWZCG-007) Flexible PI vacuum drying equipment bidding · Jinjiang City Grass Road Yonghe section engineering survey and design, survey supervision and design review (Consultation) Tender Notice · Yongchun County Dangshan Center kindergarten new campus project · Yongchun Wuli Street Town Spring Walled Zhaiimen, Zhaiqiang and other restoration works · Dehua Pengxiang Secondary Construction Supervision Tender Notice · Xi'an Electric Power Machinery Co., Ltd. Seamless with gold procurement · RFQ:-cgzxxc-xj476 (Construction - Taicang -18.449 Fang Guan) · Shaanxi Future Energy Chemical Co., Ltd. Coal Oil Branch of the roof of the gas plant required procurement of exhaust fans - Tender Notice · Procurement of Roots Blower National Weighing Metering Technology Committee recently released "non-automatic weighing general technical requirements" Exposure Draft National Pressure Metering Technology Committee released the "double-piston pressure vacuum gauge verification procedures," Draft for Consultation · Ministry of Environmental Protection issued "Key Basin Water Pollution Prevention and Control Plan (2016-2020)" · "People's Republic of China Environmental Protection Tax Law" will be 2018 January 1 formally implemented · Detailed Explanation "about accelerating the development of environmental protection equipment manufacturing industry guidance," What are the implications? · Ministry of Industry and Information Technology "Guiding Opinions on Speeding up the Development of Environmental Protection Equipment Manufacturing Industry" Full Text · National Time and Frequency Regulatory Commission Issues "Standard for Calibration of Pulse Distribution Amplifiers" Draft for Opinion · SAWS Issues 13th Five-Year Work Safety Standards Involving a total of 362 · Heilongjiang issued "on the classification of good job of garbage" notice · National Weighing Measurement Technology Committee recently released "non-automatic weighing instrument general technical requirements" draft for comment 2018 Xiamen International vending machines and self-service products Exhibition Venue - Time 2018 Xiamen Smart Retail Terminal Conference Venue - Opening Hours - Contact Information - Exhibitor Fee * 2018 Xiamen International Vending Machine and Self-service Products Exhibition Venue - Opening Hours · 2018 Xiamen Smart Retail Terminal Conference Venue - Opening Hours - Contact Information - Exhibitor Fee · 2018 The thirteenth western boiler heating ventilation and air conditioning and refrigeration equipment exhibition · 2018 The 14th Huabei boiler HVAC equipment exhibition · IE expo 2018 The 19th China World Expo · 2018 Kunming Beauty Expo Registration Contact - Venue - Organizing Time · 2018 Kunming Beauty Expo Venue - Organized Room - Registration Contact Information - Participation Fee 2018 Wuhan Beauty Expo Registration Contact - Location - Time of the Organization Popular Tags Fluid Machinery Original Call for Papers _ Contributing to the headline is so simple _2016 China Yiwu International Equipment Fair 【2017 Exhibition Info】 2017 Exhibition_International Exhibition Info Summary Thanksgiving 10 years, 10 times the return_Asia Fluid Network 10 years Thanksgiving special feedback 2016 Xiamen 98 CIFIT & China International Investment and Trade Fair is not just the Olympic gold medal , 2016 Rio Olympic Fluid Mechanics Escorting 2016 (2nd) Innovations in China's Internet and Industrial Integration Summit 2016 Shanghai Pump Pipe Valve Exhibition - Phase 5 of Anshun Industrial Development Park Industry Center Construction Project Large-Scale Procurement 2016 Seventeenth China Shanghai World Expo _ Topic 2016 Xiamen Industry Fair _ 厦门 工 博会 _ 流体 机械 网 Special Report March 8 International Women's Day _ Tribute to the elite women in the industry Focus on the 2016 Beijing Petroleum Exhibition (cippe2016) Vane pump slide Valve pump big move solution Variable piston pump common fault Wear-resistant decay resistant liquid pump A novel pump: multi-stage pipeline pump can not Generation of pumps: electric diaphragm new look: self-priming centrifugal pump to solve the selection of sewage submersible pump trouble chemical pump a full range of energy-saving pump pneumatic double diaphragm failure solution to a comprehensive interpretation of high-pressure centrifugal pump water pump technology a comprehensive analysis of fire pump Engineering Plastics Diaphragm Pump The latest pump standard teach you to use metering pump Different models of single-stage single-suction centrifugal pump Introduction Today, users concerned about the valve market analysis Self-service retail terminal Oil and gas lubrication Oxygen special valve Three comprehensive test chamber Micro oil mist lubrication Lubrication plasma Cutting dust control plasma cleaner soldering dust purification machine biomass boiler dust collector and coal-fired boiler precipitator vacuum isolation shut-off valve low temperature angle of the cut-off valve DC lining fluorine shut-off valve lined with fluorine angle cut-off valve threaded stop valve UV photo-oxygen purification Alloy Steel Ball MQL Sewage Pump Threaded Gate Valve Copyright & Disclaimer Asia Fluid Network All rights reserved Worldwide by law, all information that is readable and visible on this website is protected by intellectual property laws and no entity or individual Company authorization shall not be marketed under the name of the Company and all its websites Commercial or non-commercial activities. Unless otherwise noted or authorized to use. All other Asian Fluid Networks trademark and product names that do not have the right to claim may be the trademarks or registered trademarks of their respective owners without the written consent of Asia Fluid Network or other third parties that have the right to use the trademarks on this website It should not be understood as authorizing the use of any trademark displayed on this website. Chengdu to speed up the construction of the exhibition eco-circle and strive to form a multi-billion industry in 2020 Xinhua News Agency published an interview with the executive director of China Pavilion Astana Expo 2010 Interview with Yao Rui Media Focus Exhibition Information Product Guide National Environmental Chemistry Metrology Technical Committee released "Mining Hydrogen sulfide gas detector, "the test procedures for micro-plastic pollution control breakthrough draft advice artificial intelligence nano-machine implantation will likely lead to a wave of unemployment · Yichang City, issued in 2017 soil pollution prevention and control work points · Ministry optimistic about the prospects of environmental protection equipment industry is expected to 2020 The output value will reach trillion · 34 provinces in 8 provinces set off the autumn and winter of 2017 "Blue Sky Battle" · National Environmental Chemistry Metrology Technical Committee released the "mining hydrogen sulfide gas detector" verification requirements Draft · Shandong want to vote 5.3 billion construction 353 Hazardous waste disposal project · breakthrough in micro-plastic pollution control · Development and Reform Commission for non-residents of urban water out of new regulations · the State Council promulgated the "Notice on the Third National Land Survey" · artificial intelligence nano-machine implantation will likely lead to a wave of unemployment · New hydraulic pump can work at 1400 ℃ will be used for solar hair · Stanford recently successfully developed ultra-cheap batteries instead of lithium-ion batteries · Jiangxi introduced measures to control the whole industry chain of rare earth REA crack down on illegal activities · "People's Republic of China Environmental Protection Tax Law" January 1, 2018 release "China Ambient Air Quality management evaluation report (2017) "issued a lot of pm2.5 decreased significantly ·" Soil Pollution Prevention Law "is about to start second trial soil repair market bullish 2018 Xiamen International Vending Machine and self-service products Exhibition Venue - Time 2018 Smart Retail in Xiamen Terminal Conference Venue - Time - Register Contact Us - 2018 Kunming Beauty Expo Registration Contact - Venue - Time 2018 Xiamen International Vending Machine and Self-service Products Exhibition Venue - Organizing Time · 2018 Xiamen Smart Retail Terminal Conference Venue - Time - Registration Contact - Exhibitors Fees 2018 The thirteenth Western Boiler Heating Ventilation and Air Conditioning and Refrigeration Equipment Exhibition · 2018 The 14th North China boiler HVAC Equipment Exhibition · IE expo 2018 The 19th China Central Bo Will · 2018 Kunming Beauty Expo Registration Contact - Venue - Organizing Time · 2018 Kunming Beauty Expo venue - Time - Registration Contact - Participation Fee 2018 Wuhan US Fair Registration Contact - Location - Time 2018 Wuhan Beauty Expo where? · 2018 Wuhan Beauty Expo venue - Registration Contact - Time - Participation Fee 2018 Wuhan Beauty Expo Registration Contact - Location - Time - Participation Fee · 2018 February US International Water Treatment Environmental Exhibition · February 2018 Mexico Industry Manufacturing Exhibition · 2018 February India International Machine Tool and Molding Equipment Exhibition · February 2018 Turkey International Pump Valve Water Treatment and Air Conditioning and Refrigeration Exhibition JY-Q201 ultrasonic rubber cutter working principle Fine concrete mortar pump Features Which? What is a small secondary structural column pump? · Brief JY-Q201 ultrasonic rubber cutter working principle · What are the characteristics of fine aggregate concrete mortar pump? · What is a small secondary structure column pump? What are the requirements for gear pump maintenance? · Brief description of high and low temperature test chamber energy efficiency test methods have? · What is a constant temperature and humidity chamber? Selection of what are the requirements? · A variety of incubator use and purpose analysis · What is the key load displacement curve? · What is cement than long instrument? Cement than the length of the instrument Technical parameters Introduction · What is the carbon-sulfur analyzer? What are the main points of maintenance and repair? Detailed on-line densimeter product features and technical parameters Noise monitoring system What are the advantages? · Interpretation of G-type single-screw pump product features and technical parameters · WQD automatic submersible sewage pump product features and uses what? · Detailed rubber pressure testing machine structure, technical parameters and characteristics of resistance Chi single screw pump advantages and main purposes High quality piston pump enterprise "beachhead battle" Shanghai Shen Fu Li plastic industry, a new benchmark I also want to appear here Recent show Exhibition Recommended Exhibition 2018 London International Building Materials Exhibition 2018 Birmingham International Kitchen & Bath Show Qingdao International Metal Processing Equipment and Technology Exhibition May 2018 Ghana Agricultural Machinery Exhibition · May 2018 Ghana Daily Living Exhibition · 25th International Exhibition on Packaging and Printing Industry in Iran - 5th China International Paper Industry Exhibition · 18th International Exhibition on Plastics and Rubber Industries · 2018 Kenya Auto Parts Exhibition · 2018 June South Africa Home Appliances Fair · 2018 Norwegian Offshore Oil Natural Gas Exhibition 2018 Dortmund, Germany Tobacco Show - Beijing Ying Run 2018 Verona, Italy Electronic Cigarette Exhibition - Beijing Ying Run 2018 Shanghai International Container Bag, Woven Bag and Valve Pockets Exhibition · CIPPME 2018 Shanghai International Packaging Products and Materials Exhibition · 2018 Shanghai International Amusement Equipment Exhibition · 2019 Hanover Industrial Fair in Germany · 2020 American Transmission and Distribution Show · American International Medical Equipment Exhibition (FIME 2018) 2018 15th Singapore-Asia Maritime Exhibition 2018 Turkey Eurasian International Industry Exhibition 2018 Philippine Building Materials Exhibition 2018 15th Singapore-Asia Maritime Exhibition 2018 Turkey Eurasia International Exhibition · 2018 Philippine Building Materials Exhibition · 2018 Middle East Oman International Building Materials Exhibition · 2018 Nuremberg Windows and Doors and Curtain Wall Exhibition · 2018 Beijing Rubber & Plastics Industry Exhibition · Turkey International Medical Devices Medical Diagnostic, Supplies, Health and Rehabilitation Equipment Exhibition 2018 Turkey Eurasia International Industry Exhibition 2018 Hannover Messe Germany · Turkey International Medical Devices Medical Diagnostic, Supplies, Health Care and Rehabilitation Equipment Exhibition · 2018 Shanghai Surface Materials Exhibition · 2018 Istanbul, Turkey Medical Equipment Exhibition · Mumbai, India Medical Device Exhibition 2018 Milan, Italy International HVAC Refrigeration and Sanitary and Energy Exhibition 2018 China (Beijing) International Printing and Packaging Industry Exhibition 2017 'China International Graphene Innovation Conference 2017 (GRAPCHINA 2017) The 3rd 2017 China (Yangquan International Coal Industry Equipment and New Energy Industry Exhibition 2017 Shanghai International Central Kitchen Equipment and Hospitality Equipment Expo · 2017 'GRAPCHINA 2017' · The Third 2017 China (Yangquan) International Coal Industry Equipment and New Energy Industry Exhibition · 2017 Shanghai International Central Kitchen Equipment and Hotel Equipment Expo · 2017 Eighth (Shanghai) Food Packaging and Processing Machinery Exhibition · 2017 19th Zhejiang (Xiaoshan) Machinery and Equipment Exhibition · 2017 Shenzhen International Fasteners, Springs and Manufacturing Equipment Exhibition · Section Third China (Kunshan) International Fan Industry Exhibition · 2017 15th China Dairy & Beverage Industry Exhibition · 2017 China International Auto Commodity Fair (CIAPE) · The Third Chengdu International Auto Parts and Accessories Exhibition and Service 2017 · Tenth The 7th Shanghai International Automotive Industry Exhibition · 2017 (6th) International Bridge and Tunnel Technology Conference (2nd Notice) · 2017 The 2nd Northeast Asia (Shenyang) International Environmental Protection Expo · The 9th China (Shanghai) International Large- Tank exhibition · Ninth China International Offshore Oil and Gas Exhibition New Products Recommended Products Hot Products Full level sensor Holzer magnetoresistive switch plastic hexagon socket head cap screws hexagonal screw hexagonal screw hexagonal bolt plastic screws Pegasus (Victor) power inverter module PCB repair rohrs high life combination spring - Henan Henan drum triloba Roots Fan US Hypertherm power main control board chopper motherboard maintenance level sensor full polarity Hall magnetoresistive switch plastic hexagon socket head cap screws hexagonal screw hexagonal screw hexagonal bolt plastic screws Pegasus (Victor) power inverter module PCB repair rohrs high life combination of spring - Henan, Henan drum trilobal Roots blower US Hypertherm power main control board chopper motherboard repair automatic head machine engineering wholesale Mona Lisa bathroom factory direct toilet wholesale centrifugal oil purifier, centrifugal Oil Purifier, Oil Purifier, Oil Purifier High and Low Pressure Control Hydraulic System Stainless Steel Booster Pump Vertical Single-stage Corrosion-resistant Industrial Water Pipeline Booster Pump Pipeline Centrifugal Pump Small Domestic Pipeline Booster Pump Clean Water Do not Leak Circulation Centrifugal Pump Energy-efficient Household Zhejiang Jiangmei Electrical Co., Ltd. Slurry pump, submerged pump, chemical pump, self-priming pump, Jingjiang Huaqiang pump multi-stage submerged pump, long axis liquid Pump, Jingjiang JAC Pump Co., Ltd. Jingjiang Jinqiao Pump Co., Ltd. · 2018 Jinan US EXPO Venue - Time - Sign up Contact - Participation Fee · 2018 The 12th Huazhong International Beauty & Cosmetics Expo Time - Venue - Application Contact Information - Exhibiting Fees · International Exhibitions in Nuremberg, Germany · Promoting Green Chemical Industry and Recycling Economy · 2017 CIIF Helps Clients Transform from Traditional Industry · Xiamen MICE Industry Urges Expansion to Expand 300,000 Sq. Meters · International Aviation Exhibition Committee China headquarters settled in Chengdu · The 19th China International Industry and Trade Fair in 2017 Safe and secure Secured off-line experience · 2018 The 21st Beijing, China Science and Technology Expo · 2018 Beijing International Air Purification and Water Purification Equipment And fresh air Exhibition time - Location - Scope of Exhibits - Introduction of charges · 2018 Eighth Beijing International Hospitality Fair held time - Location - Registration - Charges Introduction · 2018 12th China Energy Conservation Exhibition prominent brand Effect · 2017 The tenth North China fresh air purification water show held in Hebei in early · 2017 ninth China (Wuxi) International New Energy Conference & Exhibition · 2017 China (Guangxi) Graphene Innovations Exchange Exhibition will be held on November 10 · 2017 Fifth China Organic Agricultural Products Exhibition cum China Green (M) Bricks tea fair signed more than 4.6 billion · 2017 Eighth Global Procurement (Wuhan) Forum and Procurement Expo held in Wuhan · 2017 twenty-fourth China Yangling Agricultural Hi-Tech Achievements Expo held recently · Thousands of experts and scholars gathered in Xiamen Explore the future of the Convention and Exhibition in Xiamen · Hainan Provincial Department of Commerce for the first time to participate in the 2017 Global Association of Exhibition Industry (UFI) Global Congress · 2017 Boao Forum for Asia Summit Smart city construction and development in Asia · Call nineteen Interest in China change? EV Charging Expo is coming! The original tease can play this · 2018 China's northern region heating heating - Xinjiang Forum held at the end of March Graph Jiangsu electric actuator dzw45-24-wk2 manufacturers auma electric actuator belimo execution Am230, nru24-sr Germany ps electric actuator belimo actuator nmu230sr, nmu24-sr var num = $ (". Detailnr"). Find ("table"). Length; var tabletot find ("table"). eq (i; n); table_array ; table (); table (); table () (); table () .find ("table"). eq (i) .html (tableclearhtml [i]); $ (". detailnr"). find ("table"). eq (i) .find ("tr: first"). removeAttr ("style"); // $ (".detailnr").find("table td"); css ({"background": "# f60", "color": "#fff"}); /$(".detailnr").find("table td "). css ({" background ":" #eee "}); jQuery (". rightk "). slide ({titCell:" .rkti li ", mainCell: ".rkcon1"}); jQuery (".lek"). slide ({titCell: ".lkti h3", mainCell: ".lkconqh" slide ({mainCell: ".gunsq1", autoPage: true, autoPlay: true, effect: "top", vis: 1 ".rkti1 a", mainCell: ".rkcon1" var oHeight = objImg.height (); if (oWidth> width || oHe};) () () {function limitImgSize (objImg, width, height) var nRate = parseInt (100 * width / height) / 100; if (oRate height) objImg.height (height);} else {if (o objImg.css ("margin-top", mgn + "px");} objImg.width (width);}}; var mgn = parseInt ((height - objImg.height ()) / 2) $ (". img184_147"). Each (function () {limitImgSize ($ (this), 184, 147); $ (this) .show ();}); // eof load}); In Procurement Projects Success Stories Subscribe to Fluid Machinery Marketplace Open Shops Post Products Shop Promotion Find Industry Fairs VIP Channel VIP Membership Become VIP Members Member Consultation Fluid Machinery Purchasing Release Purchase Commission Purchase Fluid Machinery Specialty Stores Find Products Find Brands Find Manufacturers Recommended Product Recommended Brand Recommended Manufacturers Other Services Free Agent Purchasing Service You Purchasing I Gifts I want to go to the exhibition Fair to promote the exhibition Fair Management Registration Management Looking for customers Looking for buyers Looking for suppliers to find other exhibitions Exhibition News Exhibition News Common sense Will be Hall of Fame 2017 Fair Daquan Exhibitor Directory Publish Procurement: Immediately Post Procurement Procurement Find Products Fluid Network Set up for the bridge Membership package Member consultation Help Center Industry Trends Hot Articles Hot Video Hot sourcing Hot topics I am the supplier I am the sourcing Vendor I am an exhibitor Hotspot Tracking I'm a Vendor I'm a Buying Lead I'm Show Traders Hot Tracks jQuery ("bottomfd"). Slide ({}); $ (document) .ready (function () {$ (". $ (". fdon"). toggleClass ('fdon'). click (function () {$ (". fdcont"). slideToggle (); $ (". fdtab"). addClass ('hd' $ (". fdtab"). Toggle ('.db'); $ (". conbtn0"). mouseenter (function $ (". fdon"). addClass ('fdoff'); $ (". fdtabh"). hide (); $ (". showbtn0"). addClass ('on'); $ (". showbtn0"). siblings (). removeClass ('on'); $ (". ulbtn0"). show (); $ (". ulbtn0"). siblings (). hide ();}); $ (". conbtn1"). hide (); $ (". fdtabh"). hide (); $ (". fdtabh" .showbtn1 "). addClass ('on'); $ (". showbtn1 "). siblings (). remo $ (". conbtn2"). mouseenter (function (( $ (". fdtab"). show (); // $ (". fdon"). addClass ('fdoff' siblings (). removeClass ('on'); $ (". ulbtn2"). show (); $ (". ulbtn2"). siblings () mouseenter (function () {$ (". fdcont"). show (); // $(".fdon").toggleClass('fdoff '). $ (". conbtn3" $ (". fdtabh"). hide (); $ (". showbtn3"). addClass ('on'); $ (". showbtn3"). siblings (). removeClass ('on' mouselave (function () {$ (".fdcont"). show (); $ (". ulbtn3"). siblings (). hide ();}); $ (". bottomfd"). show (); // $ (".fdon").removeClass('fdoff ');});}); / * liuti System The bottom of the legacy page 2018/1/19 * / var cpro_id = "u3190860"; / * Liuti system The bottom of the old version of the page shared ads created in 2018/1/19 * / var cpro_id = "u3190860"; precision procurement | Suppliers find products commissioned procurement supply quality | mass suppliers settled in the procurement I want to open the shop I want to supply Subscribe to purchase information Professional | Authoritative market price policy Dividend fluid video The latest products I want to submit Exhibition selection | Courier release Exhibition 2016 exhibition Daquan Pavilion Daquan I want to show I want to exhibit service Sincere | Intimate Help Center Credit certification Product navigation Advertising cooperation Recharge points National Customer Service Hotline Service Hours: 8: 00-24: 00 Fluid Network WeChat About Fluid Network | Payment Terms | Terms of Service | Disclaimer | Special reports | Exhibitions | Links | Site Map | Recruitment | Feedback | Buy | Bidding Information | Spot Supply Service Hotline: Buyer Service: I want to be VIP member: Exhibition cooperation: Complaint Proposal: Ministry of Industry and Information Technology Innovation pilot enterprise integrating Internet and industry China Internet and Industrial Integration Innovation Alliance Director Unit Value-added telecommunications business license (ICP / EDI): Fujian B Copyright © 2006 -2017 All Rights Reserved. Industry Internet (Xiamen) Technology Co., Ltd. Copyright Var uid = 0; var _hmt = _hmt || []; _hmt.push (["_ setUserId", "{{" + uid + "}}"]); (function () {var hm = document.createElement ( "script"); hm.src = "http://hm.baidu.com/hm.js?81bdcef0eb28ee5474f0981d06c7ccc1"; var s = document.getElementsByTagName ("script") [0]; s.parentNode.insertBefore (hm, s) ;}) (); // Call user portraits API $ (function () {$ .get ("/ public / BaiduPortrait", {userId: uid}, function (data) {console.info ("userid:" + uid + ", baiduAPI:" + data);});}); window._bd_share_config = {"common": {"bdSnsKey": {}, "bdText": "", "bdMini": "2", "bdMiniList" : "false", "bdPic": "", "bdStyle": "0", "bdSize": "16"}, "slide": {"type": "slide", "bdImg": "0", "bdPos with (document) 0 [(getElementsByTagName ('head') [0] || body) .appendChild (createElement ('script')). src = ': "left" "bdTop" '+ ~ (-new Date () / 36e5)]; // auto-push code start (var bp = document.createElement (' script '); var curProtocol = window.location.protocol.split ') [0]; if (curProtocol ===' https') {bp .src = ''} else {bp.src = ''; vars = document.getElementsByTagName ("script") [0]; s.parentNode.insertBefore (bp, s);}) (); // Auto-push code end // auto-include function starts (function () {var src = (document.location.protocol == "http:")? "": ""; Document.write (''); ; // auto-collection ends var SearchType = ''; (function (i, s, o, g, r, a, m) {i ['GoogleAnalyticsObject'] = r; i [r] = i [r] function () {(i [r] .q = i [r] .q || []). push (arguments)}, i [r] .l = 1 * new Date (); a = s.createElement (o, m = s.getElementsByTagName (o) [0]; a.async = 1; a.src = g; m.parentNode.insertBefore (a, m)}) (window, document, 'script', ' //', 'ga'); ga ('create', 'UA-1', 'liuti.cn'); ga ('send', 'pageview');