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Pakistan (All cities)
Overview The automatic control for the molten steel level of the mold is one of the key technologies of continuous casting production. It is very important to reduce the labor intensity of workers, improve production efficiency, improve the quality and output of casting billet, reduce overflow and breakout of steel and improve the management level of steelmaking and continuous casting. The molten steel is poured into the mold. In order to prevent overflow, the molten steel level must be kept stable. Otherwise, during the casting process, if the level will fluctuate too much, and slag will be involved, forming surface slag inclusion on the surface of the casting billet, affecting the quality of the billet. The test points out that the relationship between the level fluctuation and the depth of casting billet surface slag inclusion is as follows: The experience has shown that surface slag inclusions can be eliminated when the level fluctuation is within ±10mm. At the same time, if the level fluctuation is more than 10mm, the rate of longitudinal cracks on the casting billet surface is 30%. It means that the level fluctuation directly affects the surface quality of the casting billet. The principle of the system The eddy current type molten steel level gauge is the key to the system. The system operates reliably and has excellent performance: high temperature resistance, strong anti-interference ability, fast dynamic response (lag time 0.10s), high detection accuracy (±05mm), and large measurement range (0-150mm). The selected electromagnetic field frequency ensures that the level detection probe only detects the level change of the mold and does not detect the mold flux or steel slag layer. The system has the advantages of simple operation and no radiation protection problems. The system is insensitive to argon blowing, and its sensors can be mounted on the tundish car or on the platform. The sensor is cooled by compressed air during use. The principle is shown in the figure A high-frequency exciting winding is installed above the molten steel surface of the mold. The high-frequency magnetic field generated by the high-frequency exciting winding induces eddy currents on the molten steel surface to form a magnetic field. The magnetic field generated by the induced eddy current is in the opposite direction to the magnetic field generated by the high-frequency exciting winding, which changes the impedance of the high-frequency exciting winding. Under the condition that the winding material and structure, steel grade, temperature remain unchanged, the coil impedance change only has a single-value function relationship with the height of the molten steel level. As long as the impedance change of the high-frequency winding is detected, the change of the molten steel level in the mold can be converted. The components of the system Continuous casting mold level automatic control system is composed of eddy current tyoe molten steel level gauge, controller and digital actuator for adjusting the opening of tundish stopper. The detection end of the mold level automatic control system is ① eddy current displacement sensor, which uses the eddy current mutual inductance effect between the energized coil and the metal conductor to detect the distance. The effective signal of the eddy current sensor is amplified and linearized by the circuit of ② mold level gauge, which converts the 0-150mm change in the molten steel level of the mold into a standard signal of 4-20mA.DC, and then transmits it to the ③ control computer to complete data processing and system control functions. We can also control the actuator manually and automatically through the ④on-site operation display control panel, and the opening of the stopper is controlled by the ⑤ actuator to realize the automatic control of the molten steel level. 1 Eddy current sensor; 2 mold level gauge; 3 control computer; 4 On-site operation display control panel; 5 digital actuator; The control principle of the system The system can be set to four control modes: automatic, semi-automatic, manual and motor clutch. The automatic mode is the closed-loop control system of the molten steel level, and control the opening of the stopper by the digital actuator; the semi-automatic mode uses opening degree setter and digital actuator to set the opening of the stopper manually; the manual mode is to open and close the button directly to control the opening of the stopper; the motor clutch mode is quickly changed from any of the above control methods to manual stopper operation. The functions of the system also include: display and record of molten steel level, nozzle opening and casting speed; setting of molten steel level and nozzle opening; alarm of molten steel level at limit value etc. In addition to taking the detection of molten steel level as the main feedback signal of the control system, the control system also considers various interference factors that have an impact on the level control. These interference factors include: 1. The influence of the change of the flow characteristics on the control system after the melt loss of the stopper 2. The influence of the weight change of molten steel in the tundish on the control system 3. The influence of the change of the casting speed of the continuous casting machine on the control system 4. The influence of the mold width change (the mold width is adjustable) on the control system 5. The influence of the vibration frequency and amplitude of the mold on the molten steel level gauge The function and software implementation In order to overcome these disturbances, the mold level control strategy adopts PID control. And on the basis of PID control, self-adaptive correction and feedforward control are introduced to form an advanced control system. The level control is the main loop, and there is a proportional gain of the main loop controller. According to the self-adaptive correction of the mold width change and feedforward compensation of casting speed, so as to further reduce and eliminate liquid level fluctuations caused by mold width adjustment and casting speed changes. In order to reduce the frequent action of the stopper, the system adopts the intergarting time change of the controller, and automatically selects a longer intergarting time when the molten steel level fluctuates lightly. And the system will choose a shorter intergrating time when molten steel level fluctuates greatly. Thereby, the fluctuation of the controlled object caused by the frequent action of the stopper rod is suppressed. In the signal processing of molten steel level gauge, an appropriate filtering link is added and the vibration frequency synchronous filter is used for filtering processing, which can overcome the interference of mold vibration frequency and amplitude variation.
Rs 200.000,0
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Pakistan (All cities)
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Rs 0,0
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Pakistan
due to a change in personal circumstances and a increase in work hours i am unfortunatly having to look for a new home for my four year old female beagle, jessie. Jessie has been spayed and is a member of the family it has been a very difficu....
Rs 200,0
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Lahore (Punjab)
For businesses in Lahore and beyond, IPS UNI’s SEO Training in Lahore equips you with the knowledge and skills to navigate the ever-evolving SEO landscape. Our comprehensive program, led by industry experts, empowers you to take control of your website’s visibility and achieve sustainable growth. https://ipsuni.medium.com/mastering-seo-with-ips-unis-seo-training-in-lahore-46241394811b Call us at: 03340777021 Address: Al Hafeez Executive office 1506, 30 Firdous Mkt Rd, Lahore, Pakistan Visit our website: https://ipsuni.com/
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Pakistan (All cities)
Stunning online presence for your Embroidery Digitizing, Custom Patches & Vector Art Services Looking for a professional and customized website to showcase your embroidery digitizing, patches, and vector artwork services? Look no further! We offer expert website development services tailored to your unique business needs. With our website development services, you can: Showcase your embroidery, patches, and vector artwork services in a visually stunning way Increase your online visibility and reach a wider audience Streamline your business operations with our custom online ordering, payment, employee record system Build customer loyalty with a seamless user experience and responsive design Enjoy ongoing maintenance and support to ensure your website runs smoothly Other Services: Company formation in USA / UK Payment gateways (Paypal, Wise, Stripe, Banks, CashApp, Applepay, Googlepay) Office Address in USA / UK US/UK phone numbers Digital Marketing for Custom Patches, Embroidery Digitizing and Vector Services And many more… Our team of experienced developers will work closely with you to create a website that reflects your brand and meets your business objectives. We use the latest technologies and best practices to ensure your website is fast, secure, and user-friendly. Don't miss out on the opportunity to take your embroidery digitizing, patches, and vector artwork business to the next level with a customized website. Contact us today to learn more and get started! Call us: +92 310 1049 268 Email: edigit@erevotech.com Website: www.erevotech.com
Rs 75.950,0
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4 photos
Pakistan
4 year old male beagle called 'Bizol' who is very sweet a little shy but once settled is very loving and friendly. He is great with other cats and dogs, he would be fine to be rehomed with older children purely as he's a little shy, He is cur....
Rs 200,0
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Pakistan (All cities)
Dear Customer, Welcome to Home of SSD Automatic Solution! Mercury Chemical Consultant Group is a very mature organization with operational excellence at its heart, based on the principle of taking work to the location where the best talent is available, where it makes the best economic sense, with the least amount of acceptable risk, to strive relentlessly, constantly improve ourselves, our teams, our services and products to become the best and we offer Machines to do the big cleanings and we do delivery of Products/Materials to buyer’s destinations. It impresses me to bring to your notice that we have Original currency Laboratory and Equipment’s use in cleaning all semi processed Currencies, like Anti-breeze bank notes and deface Bank notes. We are manufacture and seller of all sorts of chemicals which includes: SSD AUTOMATIC SOLUTION SUPER AUTOMATIC SOLUTION ACTIVATION POWDER MERCURY CLEANING MACHINE CONGEAL CHEMICAL MELTING We supply all materials used in treating and cleaning of any type of defaced currency, Pounds, CFA France, Euros, Dollars and other currencies. Our qualified professionals are ever ready to meet and handle the clean if you so wish, also we help and clean for the customer who don’t have money to buy Chemical/Materials after registration. Contact us immediately for inquiries and Solutions. We will take a note for test in the Laboratory which will enable us to know the chemical that will work on the currency. WE WILL BE PLEASED TO WORK FOR YOU. ***************************************** ASIA OFFICE Name: JERRY WILL WhatsApp OR Call: 00919582553320 Email: techjerry7@gmail.com MERCURY CHEMICAL SENIOR TECHNICIAN LONDON OFFICE: Dr. Rooney Deo E-mail: mercurychemical@consultant.com MERCURY CHEMICAL LAB COORDINATOR *****************************************
Rs 0,0
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10 photos
Pakistan (All cities)
Buy Verified Cash App Accounts As it acquires clients, checked accounts become fundamental for organizations and people to completely get to its highlights. A checked money application account permits you to send, get, and pull out a lot of cash, making it ideal for business people, consultants, and financial backers. Purchasing a confirmed money application account has turned into a pattern now, with numerous suppliers offering this help at a sensible cost. In any case, it means quite a bit to purchase from a confided in source to stay away from tricks or fake records. You will learn the fundamentals of purchasing verified cash app accounts and everything else you need to know before making a purchase in this article.
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Pakistan
Top class litter of kc reg Akitas pups. Puppies have a fantastic blood lines and already chunky for their age.The pups have been flead and wormed up to date and are now on solid food. Puppies will be ready to leave for there loving homes
Rs 10.000,0
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Pakistan (All cities)
Overview The surface quality inspection of high temperature cast product is of great significance to the repair of cast product’s defects and the hot delivery of hot cast product. The ZSQ-T series of online surface quality inspection equipment for casting billets developed by Wuhan CenterRise M&C Engineering Co., Ltd can detect the defects such as scratches, cracks, holes, pits, edge cracks, edge defects on the surface of the cast products, and meet the customer's requirements for the quality inspection of the surface of the cast product. The principle of the system The ZSQ-T200 online surface quality inspection system for continuously cast products adopts the principle of optical imaging and uses a CCD image sensor to input the surface image of the cast products to be detected into the computer, and then the obtained image is processed by special image processing software to find out whether there is any defect in the image. After the defects in the image are obtained, the obtained defects are classified through a special self-learning system, and finally the requirements of the computer to automatically identify the surface defects of the cast products are achieved. The composition of the system 1. Optical part: The optical part is composed of multiple fixed-focus lenses and linear CCD, which mainly realizes scanning and imaging of the surface of the cast products. 2. Lighting part: The lighting part is composed of a high-brightness LED array and a cylindrical lens, which realizes high-brightness and high-uniformity lighting on the surface of the cast products. 3. Mechanical structure part: The mechanical structure part mainly realizes the adjustment, installation and fixing of the optical part and the lighting part, and consists of the imaging head (optical part), light box (lighting part), bracket and control cabinet. The structure is required to be stable and reliable. 4. Real-time processing: The real-time processing part is completed by the multi-CCD data real-time sampling processing unit (high-speed DSP) independently developed by Wuhan CenterRise M&C Engineering Co., Ltd. 5. Hardware part: The hardware part consists of high-speed storage controller and storage hard disk array, Gigabit InternetMAC controller, Gigabit Ethernet PHY. Rj45, and multiple high-speed workstations. 6. Detection software: The detection software mainly realizes the functions of collection, storage, transmission, processing of CCD scanning images, extraction of defects, analysis of defect characteristics, calculation of defect size and position, storage of defect images, generation of cast product’s surface quality analysis reports. etc.
Rs 0,0
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Pakistan (All cities)
The available cpu scrap 1-Gold Top Cpu... 2-Gold Top&Bottom Cpu.. 3-Intel 186/286/386/486/Pentium/Pentium Pro/i860/960/... 4-Cyrix486/586/MIIIBM486/586/686/ scrap CPU chip. AMD K5 NEC R10000 Pentium Pro Cyrix 586 IBM 686 Intel 186 / 286 / 386 / 486 / Pentium / Pentium Pro / i860 / i960 Cyrix 486 / 586 / MIIIBM 486 / 586 / 686 Motorola 68000 / 88000 series NEC Toshiba MIPS series: R4000 / R8000 / R10000 / R12000 Dispatch. details are as follows - Ceramic crap Ceramic CPU with Aluminum Cap Black Plastic CPU Plastic CPU's Ceramic Pentium pro CPU 486 ceramic ntel Pentium Pro Ceramic CPU Processor Scrap with Gold Pins. @everyone #cpuusa #cpucanada #cpucalifornia #cpuaustralia #cpuuk #cpugermany #cpurussia #cpujapan #cpulosangeles #cputexas #cpuflorida #cpupins #cpuscraps #cpuindonesia #CPU #scrapmetal Company name : BAICUSCRAP METAL LTD ... Recycling company e-mail : baicuscrapmetalltd@gmail.com
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Islamabad (Islamabad Capital Territory)
Starting a bakery business is thrilling, but success requires the proper equipment. The instruments you select will not only help you make high-quality baked items, but will also streamline your operations, increasing your bakery's efficiency and profitability. Here's a list of the basic bakery equipment from the Bakery Machinery Manufacturers, you'll require to get started the Successful Bakery Business. https://www.tradebrio.com/exporters/bakery-machinery.html
Rs 100,0
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Pakistan (All cities)
Overview Our company focuses on the production and application of the cables in continuous casting steel production. We have rich on-site usage experience, which provides us with technical guarantees for manufacturing high-quality communication cables. For cables of different applications, we have different protection requirements, such as high temperature resistance, anti-pull, acid and salt spray resistance, slightly positive pressure heavy-duty connector, anti-oil pollution, anti-interference, etc. Common industriaI cable for continuous casting 1. Breakout prediction compensation cable 2. Mold level control cable 3. Mold oscillation cable 4. VUHZ sensor cable 5. Mold width adjustment cable 6. Dynamic lightly depress the cable 7. Fixed cable for ladle slag 8. Movable cable for ladle slag The quality control All our products use proven materials to ensure stable and reliable product quality from the source. The core equipment all adopt imported raw materials. From raw material control to wire harness integrated processing, we ensure the stability and consistency of product quality. The scientific quality management system brings the product quality to a higher level. The program customization Our company has been focusing on the production and processing of wire harness products for many years. We have a professional technical team, which can realize synchronous development and technical docking with customers timely, optimize product design, and provide customers with complete solutions for wire harness products. Widely used: All kinds of wire harnesses produced by our company are widely used in major steel mills across the country, such as SHOUGANG, TISCO, HBIS GROUP, TIANJIN IRON PLANT, BAOGRANG GROUP, etc. The first-class product quality, and has won unanimous praise from domestic and abroad.
Rs 0,0
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5 photos
Pakistan
i have a variety of beautiful, yellow, white, red, yellow/green canaries for sale. male and female. you can get them separately or in pairs! lovely gift for anybody. prices range from £25 and above. offers can be made, when you come to view the birds.
Rs 4.000,0
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Pakistan (All cities)
Specification Used Electric Motor Scrap sealed units purity: 99.97% with connection box consist of aluminum case, with full copper content inside voltage220/440 voltage 50 or 60 hz. Size : 100 -500 cm3 power 2 Hp to 40 Hp Three phase Compressor weight: 6Kg, 8Kg, 10Kg, 12Kg 14kg 20kg -22 kg 40kg material : oil drained, comes copper Inside bulk quantity available for more details inbox me or contact us via email at baicuscrapmetalltd@gmail.com or add us on whatsapp +447918 245841
Rs 120,0
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