How about WISCO cold rolling mill?

Not bad. The cold rolling general factory is divided into three branches. Three times cold rolling is the best. Please see official website's introduction below.

Brief introduction of WISCO cold rolling general factory

1. Overview

This cold rolling plant is one of the main plants of WISCO's "One meter seven" project, which was approved by the first generation of party leaders such as Mao Zedong and Zhou Enlai in the 1970s.

Construction started in 1973, officially completed in 1975, put into trial operation in 1978, and realized the design output of 6,543.8+100,000 tons in 1986. It took eight years from debugging to successful design and production. During this period, the cold rolling mill eliminated the interference and influence of the Gang of Four, persisted in reform and opening up, vigorously carried forward the spirit of hard struggle, extensively carried out technical training and on-the-job training, and worked hard to digest and absorb new technologies, technologies and equipment imported from West Germany, and successively achieved major victories such as installation and commissioning, successful production, design exceeding production level, and enterprise rectification and acceptance. The success of the design of the cold rolling mill reached 6.5438+0 million tons, which indicates that the cold rolling mill has entered a brand-new development period from the initial stage. These eight years are eight years of ideological emancipation, eight years of hard struggle and eight years of entering the ranks of metallurgical modern enterprises in China.

Since 1987, the cold rolling mill has accelerated the pace of enterprise management mechanism reform. By 1997, WISCO Cold Rolling Mill Co., Ltd. was established, which has passed 1 1 years. During this period, the cold rolling mill developed with the construction of WISCO; With the reform of WISCO, it has become more powerful. In the past eleven years, the cold rolling mill has experienced the transformation from planned economy to market economy, the severe test of market economy, the divestiture of the main body and the reorganization of enterprises, and grasped the two "wheels" of technological progress and technological transformation with one hand, realizing a new take-off. The success of the shareholding system reform in the cold rolling mill marks that the cold rolling mill has achieved a historic leap and opened a new historical period for the cold rolling mill. These eleven years are eleven years of deepening the reform and development of cold rolling mills; This is an eleven-year period in which the technical progress and technical transformation of cold rolling mill have continuously achieved results; In the past eleven years, the comprehensive competitive strength of cold rolling enterprises has been continuously enhanced. The establishment of modern enterprise system in cold rolling mill has injected new vitality into the reform, development and production of cold rolling mill.

From 1998 to 2008, the cold rolling mill spent eleven years innovating its business model and implementing the management system of the general plant. During this period, the cold rolling mill has continuously improved and strengthened the construction of modern enterprise systems to ensure that all systems are in line with international standards. Adhere to the principle of market orientation and maximum benefit, implement the boutique brand strategy, and make new achievements in production, operation and reform and development. Especially since the 16th National Congress of the Communist Party of China, the cold rolling mill has conscientiously implemented Scientific Outlook on Development, made every effort to promote the three development strategies of "optimizing varieties, improving quality, building a world-class automobile plate base, strengthening the construction of talent team, improving the overall quality of employees, deepening system reform and establishing a scientific management system", and achieved a new round of reform and development. These years are the years when the management of cold rolling mill has been continuously improved and the management level has been continuously improved. These years are the years when cold rolling mills seize development opportunities, promote all-round innovation and create new glories. These years are the period of the fastest development, the biggest technological change, the best economic benefit and the most benefit for workers in the history of cold rolling mills.

You reap as much as you plant. In the past 30 years, the cold rolling mill has gone through a difficult road of entrepreneurship, development and innovation. Since that year, it has filled the gap of scarce steel products in China, and gradually developed into today's national automobile plate base. From thirteen main production lines in a factory in those years, it has gradually developed into thirty-eight main production lines in three branches of a general factory today; The output and quality of products have been continuously improved, and the varieties of "double high" have been increasing; At the same time, the cold rolling mill has created a team of high-quality cadres and workers and trained a large number of cold rolling technical personnel for all parts of the country. Thirty years of wind and rain have recorded the vigorous growth of cold rolling mills; The brilliant achievements of 30 years condense the hard work and wisdom of cold-rolled people.

Recalling the past, cold-rolled people are surging; Looking at the present, cold-rolled people are passionate; Show the future, cold-rolled people are full of ambition.

At present, the company is planning the fourth cold rolling. Under the guidance of the spirit of the 17th National Congress of the Communist Party of China and Scientific Outlook on Development, the Cold Rolling General Factory will continue to grow and develop, and its tomorrow will be even more brilliant.

2. Introduction of the first factory

The No.1 branch of the Cold Rolling General Factory is one of the main factories of the 1.7-meter mill project, which is located in the southeast of WISCO, starting from the new batching station in the east, reaching the hot strip steel mill in the west, the east trunk line in the south and the second steelmaking plant in the north. The first factory covers a total area of 400,000 square meters, with a total construction area of 200,000 square meters, of which the main workshop area is 1.49 million square meters. The main workshop is 786 meters long and 2 18 meters wide, divided into 16 spans.

In the 1970s, with the personal approval of the first generation leaders Mao Zedong and Zhou Enlai, the first factory was introduced from the former Federal Republic of Germany. It had advanced technology level in the world in 1970s, and was the most modern continuous wide-band mill factory at that time. On March 27th, 1974 formally negotiated with foreign businessmen, and signed the agreement of "1700mm broadband" with demark, Schloman and Simak. 1978 in the fourth quarter, all production lines were put into trial operation one after another, and 1978 began to fully debug production. 198 1 on September 28th, the first cold-rolled plate was rolled and put into production. Computer control technology was adopted for the first time in the branch factory, which initiated the cold rolling industry in China and filled the gap that cold-rolled sheet, galvanized sheet and tinned sheet could not be produced by tandem cold rolling in China. It has a continuous pickling line, a 1700 mm five-stand tandem cold rolling line, a continuous electrolytic degreasing line, a 100 nitrogen-hydrogen hood annealing furnace, a 1700 mm single stand temper mill, a 1420 mm double temper mill and a secondary cold rolling mill, and 1# and 2#. There are 13 sets, including continuous tin-plating units, with a total investment of 9 1 100 million yuan, total fixed assets of 830 million yuan, and designed annual output of 654,380+0,000 tons, mainly producing three major products: cold-rolled sheet, continuous hot-dip galvanized sheet and continuous tin-plated sheet.

In order to broaden the variety and expand the production capacity, a color-coated steel plate production line with the level of 80' s was introduced from England in 1984, and it was officially put into production in 1988. 1987 introduced a HC rolling mill production line from Germany, which was officially put into operation in 1989. 1990 imported a longitudinal and transverse shearing line for tinplate and two flying shears for hot cold-rolled plates from Germany. Up to now, the production scale of five series of products, including cold-rolled sheet, continuous hot-dip galvanized sheet, continuous tinned sheet, color-coated steel sheet and non-oriented electrical steel, has been formed, which has met the needs of users and the products have been serialized and specialized.

In September, 2003, the cold rolling mill took the opportunity of technical transformation from a high starting point, and raised 2.26 billion yuan to carry out large-scale overall transformation of the branch factory, so as to expand the production scale, improve product quality, increase product varieties and specifications and meet the needs of different customer groups. On June 28th, 2004, 65438+20041October 28th, the acid rolling line reached the design level three days ahead of schedule, which exceeded the production level of domestic similar reformed units for more than one year, and reached the international advanced level in terms of process technology, automatic control, hydraulic transmission and detection means, with the characteristics of large-scale, continuous, automation and high speed. While updating a series of related equipment, the main production units are pickling-five-stand cold rolling line, galvanizing line, 48 ordinary nitrogen-hydrogen bell-type annealing furnaces, tinning 1# shearing line, 3# transverse shearing line and longitudinal shearing line. A set of push-pull pickling line, a set of rewinding line, a set of continuous decarburization annealing line for silicon steel and two sets of shearing lines were newly built, so that the first branch factory has 65438+.

3. Introduction of the Second Factory

The second branch factory is a key supporting project and benefit project in WISCO's "Tenth Five-Year Plan" to "build a boutique base, upgrade product grades and focus on building a broadband steel production line". The second branch factory is located in the new steel rolling area south of WISCO No.3 Steelmaking Plant, with a total area of 280,000 square meters, and the main workshop covers a total area of 265,000 square meters. The main workshop is mainly composed of 9 spans, including raw material rolling span, pickling span, rolling span, post-rolling span, hot galvanizing unit span, continuous annealing unit span, rewinding and packaging unit span. The layout of the device strives for smooth process flow and leaves some room for development.

Construction of the second plant began in 2002, and the first import contract-acid rolling combined plant was signed on September 26th, 2003. In June 2004, the company signed equipment contracts with foreign parties for all production devices and entered the stage of full implementation. In February 2005, the acid rolling mill was put into full-scale linkage test run and achieved success. The main key equipment of the newly-built second cold rolling mill is imported from Germany (Simak, Demag, Siemens, Alstom, etc.), and its precision level is world-class, which ensures the accuracy of process parameters and the stability of product quality, and can produce high-tech and high-value-added products (the width of automobile plate can reach 2080mm) required by automobile, household appliances and other industries, in which the automobile plate fills the gap in the domestic market, and its quality, performance, specifications and precision are equally treated. The main production units include 13 main production lines, including pickling-rolling combined unit, continuous annealing unit, 3 galvanizing units, color coating unit, rewinding inspection unit, 1 rewinding slitting unit, 2 crosscutting units and 2 automatic packaging units, as well as 1470 sets of various professional equipment. The total investment of the second plant is 8 billion yuan, and the annual design capacity is 210.5 million tons/year, including 900,000 tons/year for cold-rolled products, 0.5 million tons/year for galvanized products and 200,000 tons/year for color-coated products.

4. Brief introduction of the third branch factory

The third branch factory project is one of the key projects of WISCO's 11th Five-Year Plan, and it is also one of the key projects of WISCO's great development at present, which is directly related to the improvement of the company's overall benefit and the accelerated construction of WISCO's automobile board base. The land area of the third branch factory is 260,000m2, the main workshop area is 8 1580.5 m2, and the site leveling elevation is initially determined as 321m..

The third factory project mainly adopts domestic technology integration and independent innovation. WISCO is the main company, and more than ten equipment manufacturers and manufacturers, such as MCC South General Contractor, Zhong Yi, Wuhan Institute and Siemens Aogang Union, participate in the design and manufacture. The unit requires to ensure advanced and reliable technology and equipment, and to ensure the stable production of domestic first-class automobile panels and high-quality household appliances. The main units include seven main production lines, including pickling-rolling combined unit, continuous annealing unit, hot dip galvanizing unit, rewinding inspection and rewinding cutting, two packaging lines and supporting public and auxiliary facilities. The total investment of the third plant is 3.5 billion, and the annual design capacity is 165438+ 10,000 tons, including 750,000 tons of cold-rolled coils and 350,000 tons of hot-dip galvanized coils. The first coil of steel is scheduled to be rolled by the third cold rolling mill in June 2009.

The Cold Rolling General Factory has technical support for the whole process of automobile plate production and all-round support for entering the automobile plate market. The key equipment adopts the world's most advanced control technology and hardware configuration, and is equipped with the world's leading equipment and instrument detection technology, such as laser welding machine, shallow groove turbulent pickling, full hydrogen bell furnace, ceramic furnace roller, tension leveler, automatic shape control, roller fine cooling, Siemens modern second-flow automatic thickness control, online roller changing, etc. All kinds of energy, logistics, process and process control parameters are equipped with advanced measuring and testing equipment, which has been effectively controlled, so that the overall production process level and product quality of our factory have reached the domestic leading level, laying a solid foundation for the construction of WISCO automobile board base and home appliance board base.