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Pakistan (All cities)
Overview Mold is the casting billet forming equipment in continuous steel casting, and it is also the core equipment and key technology of continuous casting machine. Its function is to forcibly cool the high-temperature molten steel continuously injected into its inner cavity through the water-cooled copper plate to export its heat and to gradually solidify it into a casting billet with the required cross-sectional shape and billet shell thickness. And the casting billet, which is still in liquid state, is continuously pulled out from the lower nozzle of the mold to create conditions for casting billet to be completely solidified in the subsequent secondary cooling area. The main function of the mould oscillation device is to make the mould perform mechanical movement according to the given characteristics of amplitude, frequency and waveform deflection. The purpose is to facilitate demoulding and prevent the occurrence of sticking and breakout accidents due to the bonding of the casting billet with the copper wall of the mold during the solidification process. MOC-K100 mould oscillation online monitoring system can three-dimensionally detect the positive and negative frequencies and waveform characteristics of the mould oscillation. The online changing data is provided in real time, which provides convenient and effective detection methods for on-site inspection personnel. The meaning of the system 1. When the continuous casting machine is not working properly, the billet quality problems (such as unstable oscillation marks, edge cracks, etc.) occur. According to the monitoring results of the system, we can combine with the actual on- site situation to analyze the cause of the failure, and efficiently evaluate and solve the problem of the oscillation table to improve product quality. 2. During the normal operation of the equipment, with the fatigue and wear of the mechanical structure of the mold, the expected oscillation parameters of the mold and the actual oscillation parameters will have a oscillation difference with time change, resulting in the internal process parameters’ changing of the continuous casting machine. Timely and accurate monitoring of changes in these parameters is helpful to schedule maintenance. 3. Transfer equipment maintenance from regular maintenance to state maintenance, do not repair when there is no problem, and arrange maintenance according to production needs when abnormal signs appear. Prevent over-repair and under-repair. 4. According to the monitoring results of the equipment, the on-site working parameters are adjusted in time to avoid adopting inaccurate or large-error oscillation to work and prevent the "breakout" accident. 5. We can timely find out that the oscillation is not stable or out of control in a small range, so as to avoid the formation of unevenness and unstable oscillation marks on the surface of the slab during the solidification of molten steel into the slab, and improve the surface quality of the product. 6. Adjust the working parameters reasonably according to the monitoring results, avoiding the use of excessive safety factor, making the entire assembly line play a normal working efficiency, increasing the output of billets, and create favorable conditions for increasing the casting speed. The functions of the system (1) Overview of monitoring parameters: Provides an overview of real-time monitoring parameters in the full screen, displaying all real-time data including oscillation parameters and process parameters. (2) Time domain waveform: This function mainly displays the oscillation waveforms of multiple measuring points and one channel standard waveform in real time, and simultaneously displays the three elements of oscillation of each measuring point in real time. (3) Waveform superposition: The difference between this function and the time domain waveform is that the waveforms of multiple measuring points are superimposed on a graph with lines of different colors on the same scale, and the oscillation difference of each channel can be calculated and displayed intuitively. (4) FFT: This functional module completes the calculation and display of the oscillation spectrum in real time. It is used to evaluate the waveform distortion of the entire oscillation table and to determine whether there is a problem with the installation of the oscillation device. (5) Bar graph: The oscillation of each measuring point is indicated by a bar graph of peak value and sensor gap voltage, which is more intuitive. (6) Trend: After starting this module, the operator can search the historical records in the database, analyze the changing trend of each parameter, and use it to analyze the rationality of the steel quality and processing parameter settings for different steels under the oscillation conditions. The parameters of the system 1. Number of measurement channels: According to the mold design, up to 16 sensors can be arranged 2. Sensor: three-dimensional oscillation sensing (X, Y, Z three axes) 3. Sensitivity: 1000mV/g 4. Frequency range: 0.04~10HZ 5. Frequency accuracy: ±0.01 Hz 6. Amplitude accuracy: 0.005mm 7. Transmission mode: wired digital transmission, wireless transmission 8. Host: 3U standard rack, handheld device 9. Sensor power supply: 24V.DC 10. Host power supply: 220V.AC/50Hz Mold oscillation curve The structure of the system The main components of the continuous casting mould online oscillation detection system are: 1. Three-dimensional oscillation measurement sensor 2. Handheld oscillation sensor calibrator 3. Dedicated signal connection cable 4. Preamplifier 5. Operation processing unit 6. Graphic display terminal 7. Industrial Ethernet (TCP/IP) or PROFIBUS-DP communication components 8. Control cabinet
Rs 200.000,0
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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)
The composition of the system The photoelectric strip automatic center position control system is mainly composed of sensors, amplifiers, PLC controllers, hydraulic control and other parts. System composition block diagram The main technical parameters 1. Detection width: 300-2800mm 2. Detection light source: 220VAC. (100VAC) 30W. High frequency white light works continuously 3. Photodetector: precision die-casting components, time constant 20ms 4. Maximum working voltage: 50VDC 5. Distance from receiver to emitter: 300-1000mm 6. Operating temperature: 0℃-60℃ 7. Resolution: 0.5mm 8. Linearity: ±1%F.S (after linearization) 9. Repeatability error: △R1%, F.S 10. Servo-valve working signal: ±10V 11. Rated pressure (oil pressure): 4.5Mpa 12. Rated flow: 30L/min 13. Symmetry: 10%
Rs 0,0
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Pakistan
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Rs 200,0
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Askoley (Northern Areas)
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Rs 250,0
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Lahore (Punjab)
shorthand classes, shorthand speed classes, basic shorthand classes, newspaper dictation, new groups start, morning evening classes, township lahore
Rs 54.770,0
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Pakistan (All cities)
Overview The WGS-L200 Laser Slab/ Plate Steel Width Measuring System adopts the principle of double laser triangulation reflection to process the online measurement of the steel plate on the roller bed, and combines the high-speed digital signal processing technology and programming software to process the signal correspondingly, and displays the relevant data and measurement curve, so as to realize the accurate control for steelmaking process during the production. The WGS-L200 Laser Slab/Plate Steel Width Measuring System is mainly composed of computing processing software and hardware systems such as testing equipment, computing equipment. The hardware system consists of 2 sets of laser triangulation rangefinding system, on-site signal acquisition and transmission system, operation unit, host analysis and control alarm system, etc. The software of WGS-L200 laser slab/ plate steel width measuring system mainly includes data acquisition and analysis, alarm software and data visualization operation software in the host system. The data analysis system analyzes and converts the data transmitted by the signal acquisition and analysis system into the visual data of the main control room, and completes the width measurement monitoring work in the slab production operation through the set alarm threshold. The measuring principle of the system The WGS-L200 Laser Slab/Plate Steel Width Measuring System is mainly composed of computing processing software and hardware systems such as testing equipment, computing equipment. The hardware system consists of 2 sets of laser triangulation rangefinding system, on-site signal acquisition and transmission system, operation unit, host analysis and control alarm system, etc. The software of WGS-L200 laser slab/ plate steel width measuring system mainly includes data acquisition and analysis, alarm software and data visualization operation software in the host system. The data analysis system analyzes and converts the data transmitted by the signal acquisition and analysis system into the visual data of the main control room, and completes the width measurement monitoring work in the slab production operation through the set alarm threshold. The features of the system 1. Using the principle of laser triangulation reflection, it is very suitable for dynamic measurement, and the dynamic measurement accuracy is high. 2. Non-contact type, namely, the laser rangefinding sensor is installed on the upper and lower sides of the strip conveying guide groove, and the width measurement device is not in direct contact with the strip. 3. Continuous and fast sampling measurement, the sampling frequency is 300Hz-2000Hz. The measurement frequency can be set freely to realize high-speed width detection. 4. It can effectively identify and compensate the beating, inclination, side deflection and profile of the tested plate; 5. Excellent mathematical model realizes accurate width detection of the bad profile; 6. The software interface is good, powerful, easy to operate and maintenance-free; 7. The software has self-diagnosis function; 8. Full digital detection, automatic calibration system; 9. High measurement accuracy and fast response; 10. Using optical fiber signal transmission; 11. Quality control alarm; The technical parameters Measuring distance: 0.5-0.8m (according to the on-site environment) Resolution: ±0.1mm Repeatability: 0.2mm Measurement output frequency: 100-3KHz Laser class: 2 (IEC60825-1:2014) Protection class: IP65 Communication method: TCP/IP communication
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Pakistan (All cities)
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Rs 0,0
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Pakistan (All cities)
Overview In order to meet the needs of producing various specifications of continuously cast products, shorten the time for replacing the mold, and improve the production capacity and production efficiency of the continuous casting machine, the mold online width adjustment system is the key technology for efficient continuous casting. The online mold width adjustment system enables the two narrow sides of the continuous casting slab mold to move inward or outward in small steps until the predetermined width is reached. During the production process, the adjustment of the mold’s width can be completed without stopping the machine. Generally, the online width adjustment of the mold needs to be connected with the online taper measurement of the mold. Only with adjustment and detection can the online adjustment range of the mold be accurately controlled. Fig 1 Mold online width adjustment system The components of the system Workstation: host system, system width adjustment control, taper detection. On-site operation box: real-time display of the current control status, manual operation to adjust parameters. Digital Electric Cylinder: Precise digital control of electro-hydraulic drive cylinder, which can achieve high-precision quantitative control. On-line measurement of taper: Install it on the narrow-face copper plate of the mold, and monitor the taper of the narrow-face copper plate in real time. Cooperate with the detection feedback control of the width adjustment system, so as to achieve high-precision adjustment. FIG 2 System block diagram The technical parameters Adjustable range: 0-1250mm (unilateral) Control accuracy: 0.02mm/0.05mm/0.1mm Step resolution: 0.01mm/0.02mm Running speed: 0-10mm/s Power: 3.5KWl 16-bit encoder: 65536 pulses Weight: 25Kg Shell: high-strength aluminum alloy FIG 3 Syetem software interface The functions of the system Realize online width adjustment function Realize the online real-time monitoring function of mold taper Continuous casting production adjustment and non-stop production One-key operation in the main control room, automatic completion High adjustment accuracy and fast speed The interlock control of the continuous casting steelmaking system can realize automatic steel pouring
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Pakistan (All cities)
Overview In order to ensure the quality of the slab, it is necessary to strictly control the performance and various parameters of the CCM’s guide roll within a certain error range. Due to the continuous casting machine (CCM) is large and in a harsh production environment, it is difficult to measure the performance of the continuous casting machine manually, and many parameters are difficult to measure. Therefore, it is very important to have a set of equipment that can simulate drawing of steel billet to realize the measurement of CCM’s various parameters and performance. The multifunctional strand condition monitor uses various sensors to realize the measurement of CCM’s roll gap value, the arc value of continuous casting section, the rotation quality of the rolls, and the water spray pressure under the condition of simulating drawing of steel billet. Therefore, the CCM’s quality can be controlled in real time, and it is convenient for the maintenance personnel to analyze the CCM’s measurement results. The problem areas of the casting machine equipment can also be found. If these problems doesn’t be found in time, it will cause the bad quality of CCM’s products, the steel breakout in pouring process, surface and internal cracks and centerline deviation. The measurement of the strand condition monitor Roll gap value: By measuring the distance between a series of inner arc guide rolls and outer arc guide rolls on the CCM’s roller bed. It can be used to set the correct roll gap spacing for each pair of guide rolls in the slab caster. Arc condition of guide roller : Measuring the position between the position of the CCM’s outer arc guide roll and the two adjacent guide rolls and then measuring the deviation compared with the origical position of CCM’s guide roll, we can obtain the arc condition of the outer arc guided roller. Guided roller rotation: It is possible to know whether each guided roller can rotate freely by measuring. Water spray pressure: The operation of the water spray cooling system can be judged by measuring the situation of secondary cooling water spray at different positions of CCM's width direction. Then we can accurately locate whether the water spray at a certain point is normal. The main components of the strand condition monitor 1. The main body of the strand condition monitor used to measure the continuous casting sector 2. The connecting chain between strand condition monitor and dummy bar 3. The storage rack chain of strand condition monitor 4. Battery charger: 24V 5A 5. Calibration equipment 6. Remote control 7. Laptop 8. Printer 9. Data communication cable The technical parameter 1. The measurement range of roll gap: 210mm, 230mm (can be customized according to requirements) 2. The measurement accuracy of roll gap: 0.01mm 3. The arc measurement range: ±80° 4. The arc measurement accuracy: 0.01° 5. The spray measurement range: 0-10 6. The spray measurement accuracy: ±1 7. The battery usage times: 3 times
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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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Multan (Punjab)
Hazrat Syed Sakhi Zain ul Abideen (RA) migrated from Baghdad to Saudi Arabia and spent 22 years in Madina Munawara.One night, holy Prophet hazrat Mohammad (may peace be upon him) appeared in a dream and instructed him to go to India, convince the people to the right path, preach or spread the teachings of Islam.Obeying the orders of the holy Prophet Hazrat Mohammad (may peace be upon him), the Sufi Saint left Madina Munawara and came to Shahkot. The Sufi saint is the father of a famous Sufi Hazrat Syed Ahmad Sultan, known as Sakhi Sarwar, the bountiful Chief, shrine at Sakhi Sarwar Pakistan. Hazrat syed sakhi Zain ul Abideen (RA) practised austerities and prayers in shahkot, The great renowned Sufi saints paternal genealogy is directly related ten generation up with Ameer ul Momeneen (commander of faithful) Hazrat Imam Ali Ibne Abu Talib R.A, thus he was a direct descendant of the holy Prophet Hazrat Mohammad (may peace be upon him). The name Zain ul Abideen was selected by his father Syed Umar due to the deep love and devotion with Imam Zain ul Abideen (A.S). Specification. Object Name: Seal stamp Description: Syed Zain ul Abideen Shah"Sultan Sarwar" Inscription Script : Arabic Inscription Technique: Engraved Date Period: A D 13th Century 1248 Time period: A D 13th Century Geography: Indian Subcontinent (Central Asia) Culture/period: Islamic Condition: Excellent Relics of the Islamic saints strengthens spiritual beliefs, inspire people and give them comfort in tough times. The holy seal is a precious asset handed down from generation to generation, extremely rare and a genuine masterpiece regarding the sacred relics of the early Islāmic saints.
Rs 100,0
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Pakistan (All cities)
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Pakistan (All cities)
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Rs 5.599,0
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Pakistan
6 left in total 4 youngsters and one proven pair Youngsters 4000 each all gorgeous pastel colours long tail feathers . All closed rung breeding pair at 4000 pair 4 young plus proven pair 5000
Rs 4.000,0
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