The surface temperature of the slab remains constant, the quality of the slab is better, and the finishing rate of the slab is low. Xiaoma is excerpted from the "Metals of the Metallurgical Exhibition 2000". The quality of the slab of the roll gap measuring device depends largely on the continuous casting machine. The mechanical state, regular inspection of the slab guide is very important for maintenance. Finnish Lautaruji has developed a roll gap measuring device that records and analyzes the working condition of the roller as it passes through the casting machine. The roll gap measuring device automatically checks the roll gap size, roll sleeve wear, roll bending and bearing defects. .
The roll gap measuring device includes a calibration storage table for the dedicated spindle bar, as well as related instruments and auxiliary equipment.
The dedicated spindle bar consists of the following main components: pneumatically adjustable bellows components; dedicated displacement sensors; portable computers and rechargeable batteries.
The following auxiliary devices are required for display and output data: a dedicated computer compatible with IBM; a printer.
The roll gap measuring device must be aligned to the calibration station before operation. The corrugated pipe element in the spindle bar is to be pressed into the continuous casting machine from the top by means of a bridge crane before operation. Then, the pulling roller is rotated to pass the measuring device through the continuous casting machine as the roll gap measuring device passes through the casting machine, and the signal from the displacement sensor is recorded by the portable computer. After the inspection is completed, the portable computer is taken to a special computer and a printer. The pre-processed measurement data is displayed on a special computer and printed out by a printer. Xiaoma is excerpted from the "2000 Metallurgical Exhibition Exchange Materials". The CSP production line of Alexander National Steel Co., Ltd. is put into production. The CSP production line of the Alexandria National Steel Company (ANSDK) of Egypt is put into production. It was put into production on December 1, 1999. The hot rolling production equipment is made by the German mark.
Demag is built and put into use 22 months after signing the contract. This also confirms the success and close cooperation between Alexandria and the German SMS DeMarc, Siemens and Tedrit Italimpiariti.
The company's CSP production line has an annual production capacity of 1 million tons of hot-rolled coils. The caster has a single-row mill with six racks. The strip has a thickness of 1.2mm and a width of 1600mm. The line uses many modern technologies, such as Level control system, secondary process automation system, etc.
The company's leveling machine is from SMS. Provided by DeMark, the pickling line is supplied by ProEco Canada. It was also put into use before the end of last year.
The modernization of the Isk company's Newcastle plant's bloom caster is a major manufacturer of long products in South Africa. The original three 6-stream bloom casters have a radius of curvature of 12.5m in 1998. The plant has modernized and reconstructed the No. 2 and No. 3 continuous casting machines with a steel arm mouth turntable with a separate moving arm; 3 uses a large-capacity tundish; 4 improved the tundish preheating station to make it have a greater heating capacity; Install a new four eccentric crystallizer vibrator; 6 use the new VAI plate crystallizer and top billet guide section; 7 use multi-point bending and multi-point straightening system to accommodate high injection speed and high quality steel production; 8 use crystallization Automatically add slag-proof device and install electromagnetic stirring device to improve the casting machine cooling system; 0 use primary and secondary automation systems, and install billet marking devices and weighing systems.
After the transformation of the bloom casting machine, the internal and external quality of the slab will be improved; the capacity of the casting machine and the yield of the slab will be improved; and the production cost will be reduced.
Corus replaces large steel tube furnaces. Corus UK recently replaced the 50-year-old fuel heater at the Stockton plant with a gas stove from Cooperheat. This heating furnace is 5m wide and 12m long matched with the production of 2135mm diameter steel pipe equipment. It is a low heat capacity furnace. It can accommodate larger steel pipes than the original furnace. The maximum heating rate of the furnace is 500 °C / h, the maximum furnace temperature can reach 1100 °C, the heating speed is increased by 60% compared with the old furnace. The general working temperature of the new furnace is 650~ 1050 °Q. The new heating furnace is equipped with a PC management system. To make the furnace operation more precise, save labor and reduce operational errors. The PC management system monitors the temperature, sets the heating temperature and heating time for each batch of material, and records the process data in real time. Although the PC system of the new furnace is not networked, it aggregates the data weekly and provides it to the control manager, metallurgy. Engineering technicians and stored on floppy disks. If there is a problem with the PC system, the control system of the new furnace will automatically activate the traditional instrument for control. Pohang Steel will fully recycle the dust from the cork produced by Corex Pohang Steel Plant in order to effectively protect the environment and improve the waste. The utilization rate began to actively recycle waste materials such as dust generated by the new ironmaking equipment Corex. The plant's Corex equipment produces approximately 47,000 tons of dust per year. Due to their low iron content, high carbon content and 45% moisture, these dusts were all pressed into bricks until 1997 to fill the road surface in order to more effectively protect the environment and reduce unnecessary waste. Since 1998, the ironmaking department of the plant has mixed the dust generated by these dusts and sinter plants, and added some binders, cement, to make non-burning pellets, which are used as raw materials for Corex. However, since the non-burning ball has a high impurity content and a low compressive strength, the amount of utilization is small. Recently, under the cooperation of the technical research institute and the technical department of CBP manufacturers, the measures of adjusting the ratio of ingredients, reducing the impurity content, prolonging the drying time and increasing the compressive strength were taken. In May 2000, only 0.9% of the dust utilization rate was increased to 35.7% in 1998. The ironmaking department of the plant will improve the binder and adjust the ratio of ingredients in order to improve the quality of non-burning pellets; Dust dewatering device, comprehensively recovering the dust generated by the profit Xiao Li is taken from the Korean magazine "Posco Internal News" 2000-07-) 3 content stupid
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