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![MLC V235 Continuous Casting Mold Level Control System MLC V235 Continuous Casting Mold Level Control System](https://img.clasf.pk/2024/08/16/mlc-v235-continuous-casting-mold-level-control-system-pakistan-202408160616366207020000.jpg)
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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![Adorable Litter Of Beagle PuppiesBeagle Puppies Adorable Litter Of Beagle PuppiesBeagle Puppies](/static/img/noimagesearch.png)
Pakistan
Ready for their new home now pure breed beagles puppies. Both male and females available. They are all tri colour and are use to children. Mum is here to be seen with the puppies. For any further info please feel free to contact me. [Bizarte Beagles] Tri-colour Beagle Puppies male and female available.All Registered,pedigree and come with dew claws removed,free for MLS,NCCD by parentage,fully wormed,fully vaccinated with Contra.... ....
Rs 200,0
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![Elegant Handbags & Clutches at Baglore.com – Handcrafted to Perfection Elegant Handbags & Clutches at Baglore.com – Handcrafted to Perfection](https://img.clasf.pk/2024/12/03/elegant-handbags-clutches-at-baglorecom-handcrafted-to-perfection-rawalpindi-202412031348015507020000.jpg)
Rawalpindi (Punjab)
Discover a curated selection of stylish, handcrafted handbags and clutches at Baglore.com. Each piece is meticulously designed to blend traditional artistry with contemporary flair, offering timeless elegance for every occasion. Whether you need a chic clutch for a special event or a practical yet stylish handbag for everyday use, our collection provides the perfect accessory. Explore Baglore.com now and elevate your fashion statement with unique, high-quality handcrafted bags.
Rs 3.800,0
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16 photos
![Best Digital Marketing Company in India: Innovative Solutions for Modern Brands Best Digital Marketing Company in India: Innovative Solutions for Modern Brands](https://img.clasf.pk/2024/07/19/best-digital-marketing-company-in-india-innovative-solutions-for-modern-brands-pakistan-202407190824091071600000.jpg)
Pakistan (All cities)
As the best digital marketing company in India, we are dedicated to helping your website reach new heights! At our Online Digital Marketing Agency in India, we offer creative and effective solutions designed to make your brand shine. Here’s how we can help: Effective Social Media Management: Build your online presence with expert social media strategies. Innovative Marketing Campaigns: Unique strategies to captivate your audience and stand out online. Comprehensive Analytics: Track performance and get insights to keep your marketing efforts on track. Let us help you attract more visitors, boost your online presence, and achieve your business objectives. Ready to transform your online presence? Contact us today and let’s start building your success story. For more visit us : https://sapttechlabs.com/digital-marketing-agency-in-india/
Rs 0,0
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![manpasand shadi uk manpasand shadi londan manpasand shadi dubai manpasand shadi sudia norwy itly manpasand shadi uk manpasand shadi londan manpasand shadi dubai manpasand shadi sudia norwy itly](https://img.clasf.pk/2024/08/19/manpasand-shadi-uk-manpasand-shadi-londan-manpasand-shadi-dubai-manpasand-shadi-sudia-norwy-itly-pakistan-202408191809310609340000.jpg)
Pakistan (All cities)
manpasand shadi uk manpasand shadi londan manpasand shadi dubai manpasand shadi sudia norwy itly manpasand shadi uk manpasand shadi londan manpasand shadi dubai manpasand shadi sudia norwy itly
Free
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20 photos
![Household Cleaning Products in Pakistan Household Cleaning Products in Pakistan](/static/img/noimagesearch.png)
Badin (Sindh)
Al Nazafat is a marketing and distribution company for various health & hygiene products, for household, commercial and industrial consumption, in addition we are general order supplier for all kind of chemicals which may be imported or locally produced. Visit https://alnazafat.com/
Free
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![Online Silver Anklet in Jaipur Online Silver Anklet in Jaipur](https://img.clasf.pk/2024/11/23/online-silver-anklet-in-jaipur-ahmadpur-east-202411230755110867080000.jpg)
Ahmadpur East (Punjab)
Online Silver Anklet in Jaipur – Chic, Elegant, and Comfortable Step up your accessory game with our gorgeous collection of online silver anklets in Jaipur at thelilacc. Crafted from 925 sterling silver, our anklets are designed to enhance your natural beauty with a perfect blend of sophistication and charm. Whether you prefer a simple design or one with delicate embellishments, our anklets add a graceful touch to any outfit, making them ideal for both everyday wear and special occasions. Why Choose Our Online Silver Anklets in Jaipur? Premium 925 Sterling Silver: Made from high-quality 925 silver, our anklets offer durability and a lasting shine that’s resistant to tarnish. Variety of Styles: From minimalist chic to ornate, detailed designs, our anklets come in a wide range of styles to suit your unique taste. Comfort and Fit: Designed for all-day wear, our anklets are lightweight, comfortable, and easy to adjust for a perfect fit. Perfect for Any Occasion: Whether you're dressing up for a celebration or adding a finishing touch to your daily look, our anklets are versatile enough for any occasion. Convenient Online Shopping: Browse and buy from the comfort of your home, with secure payment options and fast delivery across Jaipur. Shop online silver anklets in Jaipur at thelilacc and bring home the elegance and beauty of finely crafted silver jewelry. Order today and add timeless grace to your style!
Rs 3.541,0
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3 photos
![MAC G320 Automatic Mold Powder Feeding Machine MAC G320 Automatic Mold Powder Feeding Machine](https://img.clasf.pk/2024/08/19/mac-g320-automatic-mold-powder-feeding-machine-pakistan-202408190147330092370000.jpg)
Pakistan (All cities)
Overview MAC-G320 automatic mold flux feeding system is a new generation product of automatic adding mold flux, which is independently developed by Wuhan CenterRise M&C Engineering Co., Ltd. According to different steel grades, casting speed, vibration and other process parameters, then the system can analyze and calculate the accurate mold flux addition amount through intelligent software. Then the system sends out signals to control the mold flux addition process and mold flux addition amount, and designs appropriate nozzles and propellers according to the fluidity of molten steel in the mold and the ductility of mold flux. After the system setting is completed, there is no manual intervention is required. It completely replaces the whole process of manual addition of mold flux, and realizes the automation of mold flux addition. The features of the system 1. The system automatically controls the amount, process and time of adding mold flux according to the process requirements of automatic mold flux addition, so as to maintain the physical state of the mold flux and prevent it from being broken. 2. The user can match different parameters according to actual needs, so as to change the length of the mold flux feeding time and the amount of mold flux, which can suit for the use of different segments and different casting speeds. 3. The casting speed signal is used and the amount of adding mold flux can be automatically adjusted according to the casting speed. The mold flux can be added timely and evenly, which can improve the quality of the billet and reduce labor intensity. 4. The time is controlled by PLC, no manual intervention is required. The adjustment is very convenient. It has manual, automatic, local and remote control modes. 5. The system has reliable performance and simple structure, and can be adapted to powder and granular mold flux. 6. It has a special anti-blocking nozzle and backflushing design to overcome the phenomenon of pipeline blockage. 7. Strong operability, simple and convenient maintenance, and low maintenance cost. 8. It can maintain the even distribution of the flux layer in the mold. The composition of the system The system consists of feeding trolley, feeding bucket, swing arm and feeder motor, swing arm transmission device, PLC and control equipment. 1. The feeding trolley is the support and walking equipment of the mold flux feeder. The basic equipment of the adding mold flux machine is installed on the feeding trolley. At the same time, the trolley can easily make the mold flux feeder walk to the working position or the parking position. 2. The feeding bucket is a device for holding mold flux. The mold flux is pre-filled in the feeding bucket and is evenly output through the feeder. The feeding bucket is provided with alarm contact of mold flux level limit.. 3. The swing arm and the feeder motor form a feeding and conveying device. The mold flux is evenly transmitted to the feed opening at the front end of the swing arm through the screw distributing device controlled by the motor. Then the mold flux can be used for mold distribution. 4. PLC and control equipment adjust and control the mold flux feeding speed, operation mode and control mode of the mold flux feeding machine, and realize various control modes and rates. 5. The swing arm transmission device controls the reciprocating motion of the swing arm according to the size of different molds, so that the mold flux is evenly distributed in the mold. The technical parameter Mold width: 500-2000mm Mold thickness: 100-500mm Type: screw conveying type mold flux feeding machine Heating method: stirring electric heating Arrangement location: on the pouring platform (with its own wheels to move) Adding capacity: 0.5~7.5L/min, continuously adjustable feeding tube Molding flux storage tank: 300 L, with material level detection and alarm Control mode: local/remote control, automatic /manual mode Molding flux type: granular flux or powder flux flux adding method: spiral swing adding flux Casting speed interlock: yes Mould size setting: yes Signal transmission: DP/Industrial Ethernet
Rs 0,0
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![Top Class perritos Litera De AKC Akita Reg Top Class perritos Litera De AKC Akita Reg](/static/img/noimagesearch.png)
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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![Motor scrap is available for sell Motor scrap is available for sell](https://img.clasf.pk/2024/08/14/motor-scrap-is-available-for-sell-pakistan-202408140745063756010000.jpg)
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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![Lovley 'bizol' Needs Adopted Lovley 'bizol' Needs Adopted](/static/img/noimagesearch.png)
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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![Buy Verified Cash App Accounts Buy Verified Cash App Accounts](https://img.clasf.pk/2024/10/08/buy-verified-cash-app-accounts-pakistan-202410081004310761990000.png)
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.
Free
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![Beautiful Canaries For Sale Beautiful Canaries For Sale](/static/img/noimagesearch.png)
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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![English Lesson Plans by Ziyyara: Your Secret Weapon for Exam Success English Lesson Plans by Ziyyara: Your Secret Weapon for Exam Success](https://img.clasf.pk/2024/06/25/english-lesson-plans-by-ziyyara-your-secret-weapon-for-exam-success-pakistan-202406250540021037940000.jpg)
Pakistan (All cities)
Unlock exam success with Ziyyara's English lesson plans, your secret weapon. Our friendly and expert tutors craft personalized lessons just for you. With our engaging online classes for English, learning becomes enjoyable and effective. WHat we offer our students: Personalized learning: Tailored English lesson plans to meet your unique needs. Expert tutors: Friendly and experienced instructors to guide you. Convenient online classes for English: Learn from the comfort of your home. Join our English tuition classes and confidently ace your exams in no time. Let's achieve greatness together. Book a demo class for english grammar classes Call us @ +91 9654271931. For more visit: https://ziyyara.com/online-tuition-for-english
Rs 0,0
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![Silver Spotted & Brown Spotted Bengal Babies Silver Spotted & Brown Spotted Bengal Babies](/static/img/noimagesearch.png)
Pakistan
We have 6 kittens that will be available as pets, they will be ready to leave home on 7 April 2016. There are 3 boys and 3 girls. Silver spotted and Brown spotted. Mum is a gorgeous Silver Marbled F6 and Dad is a stunning tarnish free Silver spotted boy. If you are interested in these babies, please contact me as there is always a great demand for these babies from this pairing. They always make fabulous big kittens and this is probably the last time that these two are paired together due to the age of Oliver. Viewings start at 8 weeks of age after their 1st vaccination when we will require a non-refundable deposit to secure your kitten. We can also early neuter your boys before they leave us, this will be chargeable, please ask us about this. Individual photos will be taken in a few weeks when kittens are weaning. Please note that some of the kittens are in the fuzzies so markings will not clear for a few weeks yet: Beige Collar - Cool Brown Boy Blue Collar - Silver Boy Green Collar - Silver Boy Purple Collar - Brown Girl Yellow Collar - Stunning Cool Brown Girl Pink Collar - Silver Girl
Rs 5.000,0
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