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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
KC BRITISHPRIDE BRED English Bulldog Hes The son of Britishpride Royal Ascot. available for STUD. HE IS A PROVEN STUD DOG producing quality puppies.
Free
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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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Pakistan (All cities)
GCSE online tuition can be a game-changer for your child's education! At Ziyyara, we offer personalized support to help your child tackle challenging subjects with confidence. Our friendly and experienced tutors make learning engaging and fun, ensuring that your child stays motivated and on track. Whether they need help with tricky topics or a boost in confidence, our online GCSE tuition is here to guide them every step of the way. Ready to see your child succeed and thrive in their studies? Let’s get started on this exciting journey together. Book your Demo today Call us at +91 9654271931(India), +971-5055 93798 (UAE). Or visit: https://ziyyara.com/online-tuition-for-gcse-board
Rs 0,0
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Islamabad (Islamabad Capital Territory)
Apple Hair Color Price In Pakistan - Quickon.pk Apple Hair Color PriceIn Pakistan offers a natural and effective solution for achieving vibrant, long-lasting hair color while maintaining the health and integrity of your hair. With its blend of conditioning agents and natural extracts, it provides a nourishing and protective coloring experience. By following the usage instructions and being mindful of potential side effects, users can enjoy salon-quality results in the comfort of their own home. Whether you are looking to refresh your current color or try a new shade, Apple Hair Color Price In Pakistan is a valuable addition to your hair care routine. FAQs About Apple Hair Color Price In Pakistan: What is Apple Hair Color? Apple Hair Color is a natural hair dye formulated with ingredients derived from apples and other natural sources. It is often used as an alternative to chemical hair dyes. Is Apple Hair Color safe for all hair types? Apple Hair Color is safe for all hair types. Does Apple Hair Color contain any harsh chemicals? Apple Hair Color is usually free from harsh chemicals like ammonia and parabens, making it a gentler option compared to conventional hair dyes. How long does Apple Hair Color last? The longevity of Apple Hair Color varies depending on the hair type and care routine. On average, it lasts for 4-6 weeks before fading. Can Apple Hair Color cover gray hair effectively? Yes, Apple Hair Color can cover gray hair, although the coverage may be less intense compared to synthetic dyes. Multiple applications might be needed for full coverage. Is Apple Hair Color suitable for sensitive scalps? Apple Hair Color is often marketed as suitable for sensitive scalps due to its natural ingredients. How should I prepare my hair before applying Apple Hair Color? It's recommended to wash your hair with a mild, sulfate-free shampoo and avoid using conditioner before applying the hair color for better absorption. Can I use Apple Hair Color on chemically treated or colored hair? Yes, Apple Hair Color can be used on chemically treated or colored hair. How often can I reapply Apple Hair Color? You can reapply AppleHair Color every 4-6 weeks, or as needed, to maintain the desired shade. Are there any special aftercare instructions for Apple Hair Color? To prolong the color, use sulfate-free shampoos, avoid excessive heat styling, and protect your hair from direct sunlight. For more details: WhatsApp: +923001819306 Website: quickon.pk Product Link: https://quickon.pk/ https://quickon.pk/product/apple-hair-color-price-in-pakistan https://quickon.pk/product/luvvel-hair-darkening-shampoo-price-in-pakistan https://quickon.pk/product/navratna-oil-price-in-pakistan https://quickon.pk/product/german-hair-color-gel https://quickon.pk/product/zinc-shampoo-price-in-pakistan https://quickon.pk/product/catherine-slimming-tea https://quickon.pk/product/lichen-hair-color-gel
Rs 3.500,0
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Askoley (Northern Areas)
Buy Verified Cash App Accounts https://buy5stareviewer.com/product/buy-verified-cash-app-accounts/ As it acquires clients, verified accounts become essential for businesses and individuals to fully access its features. A verified Cash App account allows you to send, receive, and withdraw substantial amounts of money, making it ideal for entrepreneurs, freelancers, and investors. The verification process ensures that the account is legitimate, reducing the risk of fraud and providing peace of mind for users. Verified Cash App accounts offer several advantages. Firstly, they enable higher transaction limits, allowing users to manage larger sums of money. This is particularly beneficial for businesses that need to process significant payments. Secondly, verified accounts provide enhanced security features, such as two-factor authentication, which helps protect against unauthorized access. Lastly, having a verified account can improve your credibility and trustworthiness when dealing with clients or customers. When purchasing a verified Cash App account, it is crucial to choose a reputable source. Look for sellers who offer guarantees of authenticity and provide excellent customer service. Conduct thorough research and read reviews to ensure you are making a safe and reliable purchase. Contact Info:: Telegram:@BBuy5stareviewer WhatsApp :+1(470) 745-6499 Skype :Buy5stareviewer live:.cid.e4c6455dd0c7f99e Email:buy5stareviewer@gmail.com
Rs 250,0
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Pakistan (All cities)
We are Manufacturer of garden benches. We have wide range of garden and Park benches with weather resistant, Durable and Long lasting. Widely used in Societies, University's, Farm house's. Delivery Available all across Pakistan. Contact us on What's App. [redacted phone number]
Rs 11.000,0
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Pakistan (All cities)
Himalayan Chef Whole Wheat Flour is a premium quality flour made from 100% whole wheat grains sourced from the fertile lands of Pakistan. Our unbleached and unenriched flour is packed with fiber, protein, and essential nutrients, making it an ideal choice for health-conscious consumers. https://wbm.com.pk/product/whole-wheat-flour-40-lbs-1814-kg-himalayan-chef?srsltid=AfmBOooL_2OymlrRGa_iNHxMLfYjoVR1LhxPTyj5-vkxlZgANSgS57R6
Free
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Gujranwala (Punjab)
I am a professional logo designer with 4 years of experience, specializing in creating unique and memorable brand identities. My expertise lies in designing logos that effectively communicate your brand’s values and vision. Over the years, I’ve worked with various industries, delivering tailored designs that stand out. I prioritize client satisfaction by ensuring clear communication and timely delivery. My design process is detail-oriented, combining creativity and strategy to create impactful logos. Whether you’re launching a new business or rebranding, I can help elevate your visual presence. Let’s collaborate to bring your ideas to life!
Rs 999,0
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Pakistan (All cities)
Discover the top 10 servo voltage stabilizers for industrial applications in 2025, engineered to ensure precise voltage regulation and protect sensitive equipment from fluctuations. These high-performance stabilizers improve operational efficiency, reduce downtime, and extend the life of machinery. With advanced features like automatic voltage correction and robust build quality, they are essential for industries looking to maintain optimal power stability and safeguard valuable assets. https://voltsine.in/product/servo-voltage-stabilizer/
Free
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Pakistan
imported Friesian 4 yr old mare for sale. This filly has been backed a few months ago in Holland just for 2 weeks and then came to the uk. advertised due to her needing more one to one. the most amazing mover and really one to be graded and could do well. sad sale as just overstocked. no bargain hunters need to inquire pls as I won't accept offers price is firm. No novices pls. this mare is not for the pussy due to being a little worried with mounting but will settle quick. extremely low inbreeding only 0.39% her sire is the top stallion Sjouke 453 dam is Katrina who is out of Sierk 326
Rs 50.000,0
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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
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
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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Pakistan
Our amazing litter was born on 18th of December mum is stunning tri colour and dad is a lemon and white tri both pedigrees dad has five generations blood line with his papers to prove. We have a litter of 9 chunky playful pups all wormed and....
Rs 200,0
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