200 1 After retirement, Gu Fenglan, who has always dreamed of it, founded his own Tianjin Zhongzhong Science and Technology Engineering Co., Ltd. (hereinafter referred to as Zhongzhong Science and Technology), and led many technicians to inspect the markets and equipment of various H-beam production enterprises in China, and always followed and paid attention to the development trend and market effect of universal rolling mills at home and abroad. In 2003, Zhongchong Company began to carry out in-depth and substantial research and development on the short stress line universal mill, and designed the first generation of short stress line universal mill with only a few pictures of foreign universal mills and some simple reference materials. Later, with the development of domestic steel market and the perfection of our technical reserves, we won the spring of H-beam universal rolling mill production line.
In 2004, the first generation universal rolling mill was manufactured for Tianjin Jiangtian section steel, and qualified H section steel was successfully rolled.
June 5438+October 2005 10, the "Universal Roughing and Finishing Equipment of 1070H Section Steel Production Line" of China Science and Technology Corporation was recognized as "Tianjin Scientific and Technological Achievements".
In 2006, Zhongjing Technology's "1070 Universal H-beam Roughing and Finishing Equipment" won the "National Torch Program Project Certificate".
In August 2007, our company signed a contract with Tangshan Sheng Da Iron and Steel Company for the production line of 400H section steel.
In March 2008, we signed an order contract with Dalian Zheng Da Wheel Co., Ltd. for a small H-beam production line.
In September, 2008, Tangshan Sheng Da successfully carried out the thermal load test, and the first steel was successfully rolled into 400*200 GB H-beam.
On June 9th, 2008, 10, China Metallurgical News reported that the 400 * 200mm H-beam production line designed and manufactured by Zhongjing Technology was successfully put into trial production in Sheng Da, Tangshan. It marks that China has got rid of the dependence on imported 400*200H steel equipment.
On June 5438+065438+ 10, 2008, China National Intellectual Property Administration issued three patents at the same time, namely, axial locking structure of roll system of section steel mill, reduction of reduction load of universal mill to prevent the center line of horizontal roll gap from shifting, and circumferential anti-rotation structure of vertical roll shaft of universal mill. These three patents have created huge economic benefits for users and also saved energy to a great extent.
June 5438+October 2009 10, Dalian Zheng Da successfully rolled the world's thinnest high-strength H-beam with a web thickness of only 2.3mm, and the product was successfully exported to the United States as a light automobile beam.
On June 22nd, 2009, China Metallurgical News reported that the high-strength ultra-thin hot-rolled H-beam designed and manufactured by China Science and Technology was successfully trial-produced.
On February 26th, 2009, China Metallurgical News reported an article entitled "Industrial Revitalization Planning Helps Independent Research and Development of High Performance Universal Rolling Mill". The course and achievements of independent research and development of Huazhong universal rolling mill are reported.
In July 2009, in order to meet the market demand, the second phase of Sheng Da Tangshan Iron and Steel Co., Ltd. was transformed by Zhongjing Technology, and three rolling mills were added. National standard products such as 500*200H beams, 250*250 columns and 56# I-beams have been successfully rolled, and thin beams with a negative tolerance of 8% can be rolled according to users' needs, all of which meet the national standards, thus winning 8% more benefits for users in the market competition.
In July 2009, we signed an order contract with Anshan Baode for 500H section steel equipment. The designed output is 6.5438+200,000 tons, and the design specifications are 500*200H section steel and large and medium-sized section steel products.
In August, 2009, we signed an order contract with Anshan Zizhu Science and Technology Section Steel (Anshan No.3 Rolling Mill) for large-scale section steel equipment. The main products are positioned as the maximum specification of steel sheet piles 120Kg/m and below, the maximum unequal angle steel 400*200, the maximum H-beam 600*200, the maximum I-beam 63# and the maximum channel steel 40#. Anshan Zizhu has become the first semi-continuous rolling-universal rolling heavy rail enterprise at home and abroad. Once it is successfully developed, it will fill the gap in China and become a major event in the history of domestic steel rolling.
From June 2009 to October 2009 10, Zhongjing science and technology developed a large-scale steel universal rolling mill with reference to the universal rolling mill imported from domestic large-scale rail beam factories. By May 2065, 438+00 has been designed and is being communicated with large domestic enterprises. It is planned to roll 100 meter heavy rail for China with domestic equipment to fill the domestic blank.
20 10, Anshan Baode and Zizhu steel production lines were put into use at the same time.
20 10 10 Anshan zizhu was successfully put into production, which is the first enterprise in China to roll heavy rails by semi-continuous rolling process. The experience meets the new standards of China high-speed rail in 2007. Purple bamboo products have been successfully exported to the United States, Europe and other countries, and won unanimous praise from users.
20101012010 In June, Zhongjing Technology and Tangshan Tianxing Section Steel Co., Ltd. signed a general contract for machinery, electricity and liquid of 500H section steel production line. The contract amount is about 300 million yuan.
20 1 1 in may, China metallurgical newspaper reported that "the first domestic self-developed heavy-duty universal rail beam production line was successfully developed", which attracted wide attention at home and abroad.
20 1 1 On May 27th, 2008, the project of "Rough and Finishing Equipment for Heavy Semi-continuous Short-stress Universal Rail Beam Production Line" declared by Zhongzhong Technology passed the acceptance of relevant state departments, which indicated that the universal rail beam production line independently developed by China was recognized by relevant state departments.
On May 27th, 2065438+0/KLOC-0, China CCTV reported the successful development of the first heavy-duty universal rail beam production line in China, which attracted wide attention from Tianjin municipal government and major media.
The full text of the report is as follows:
A few days ago, the domestic heavy-duty universal rail beam production line designed and manufactured by Tianjin Zhongzhong Science and Technology Engineering Co., Ltd. with completely independent intellectual property rights was successfully put into operation. The successful production of this production line has broken the monopoly of foreign rail beam production equipment technology and market, and changed the situation that all the main rail production equipment in China is imported from abroad.
20 1 1 On June 22nd, 2008, the universal mill designed and manufactured by China Science and Technology Co., Ltd. successfully trial-produced a series of hot-rolled steel sheet piles in Anshan Zizhu Science and Technology Section Steel Co., Ltd., and mass production was formed. This indicates that Zizhu Group has the production capacity of steel products with high added value, high technology and high efficiency, which fills the domestic gap.
20 1 1 On July 8th, 2000, the10.2 million ton H-beam production line designed and manufactured by Zhongjing Technology for Anshan Baode was successfully put into one-time thermal load test, and the qualified rate of the first batch of 350* 175 H beams was 100%.
Zhongjing Technology has created many firsts in the field of H-beam, and has become the leader of domestic H-beam equipment. It was reported by well-known domestic media such as CCTV, China Metallurgical News, Tianjin Daily, China Iron and Steel Internal Reference, China Iron and Steel News Network, China Metal Network and HC Network.
The achievements made by Zhongjing Technology in the research and application of universal rolling mill have attracted the attention of metallurgical enterprises at home and abroad. At present, many well-known steel enterprises at home and abroad are negotiating with China Science and Technology on the universal section steel production line project.
Zhongjing Technology is the only enterprise in China that independently develops, designs and manufactures universal rolling mills, covering a full range of specifications from 100 to 900H steel. The development of this series of products fills the gap in the R&D and manufacturing of universal rolling mills at home and abroad.