In order to promote the application of high-strength rebar, accelerate the development of rebar processing and distribution, and fundamentally solve the problem of "thin rebar". First of all, the problem of "thin steel bars" appeared in the market. "Thin steel bar" is not the first time to enter the field of public opinion. Xinhua News Agency reported that hundreds of construction sites in Xi'an used "thin steel bars", and then Shandong, Nanjing, Guangxi, Gansu and other regions reported the emergence of thin steel bars. These thin steel bars have been flowing into security houses and many civil buildings: a batch of unqualified thin steel bars appeared on the construction site of Yiba expressway; in the same year, a construction unit of Nanjing Hangzhou high-speed railway seriously elongated the steel bars for provincial cost. The report of 345 tons of "thin steel bars" flowing into the government's indemnificatory housing project in Wenchang City, Hainan Province was verified...
Building steel bars are the skeleton of the building. The quality of steel bars directly determines the quality and safety of the building and the safety of people's life and property. Pay attention to the people's livelihood. If unqualified building materials are used in the building, the "problem building" will be created, and the potential safety hazards can be imagined. "Thin steel bar" is like a time bomb in the construction industry, which will have a huge impact on the safety of people's lives and property.
In order to solve the problem of "thin steel bar" fundamentally, we should not only strengthen the supervision and inspection of the construction market, but also solve it from the source of the construction steel bar logistics, that is, the steel bar processing and distribution mechanism. The so-called steel processing and distribution is not a simple combination of the existing single machine in the factory, but the use of advanced production technology, using professional machinery and equipment to optimize raw materials to make steel products, and then distribution and installation according to the progress of the project, so as to realize the industrialization, standardization of steel processing and commercialization and specialization of steel processing and distribution.
For a long time, China's steel processing has always been in the stage of traditional manual workshop. At present, there are two ways to process steel bars in our country: one is on-site processing, that is, a grinder under a simple shed is used for cold drawing and straightening, and there are several hook cases, some of which can only be processed in the foundation pit due to the narrow construction site. Second, the traditional steel processing plant, with old equipment, low production capacity, large waste, poor product quality and high cost, generally only meets the requirements of the project contracted by the unit. Although the larger construction enterprises have their own prefabricated component factories, the processing equipment is relatively backward. The above-mentioned processing methods have the disadvantages of high labor intensity, many potential safety hazards, large land occupation, large noise, high cost, serious waste, etc. to some extent, they have seriously restricted the improvement of construction quality and become the "bottleneck" to improve the level of mechanized construction. In recent years, with the rapid development of China's national economy and the continuous increase of people's livelihood investment, in-depth implementation of people's livelihood projects, at present, some domestic enterprises and construction units began to use special equipment with high level of automation for steel processing, making steel processing factory production and commercialization become a reality. "Steel processing and distribution center" is a new industry. At present, Beijing, Tianjin, Shanghai, Hebei, Sichuan, Chongqing, Anhui, Shanxi, Guangxi, Guangdong, Heilongjiang, Liaoning and other provinces and cities have begun to process and distribute commercial steel bars. However, in general, steel processing and distribution in China is still in its infancy, and there is no substantial progress in large-scale, industrialized and market-oriented steel processing and distribution. At the technical level, there are still some unsolved problems in the automatic steel processing technology, such as the low core technology and manufacturing level of key parts restrict the development of the industry, some automatic steel processing equipment enterprises have backward manufacturing equipment, no research and development platform, rely on imitation or intermediary channels to obtain product technical information, resulting in a large number of low-quality and inefficient products in the market. Popular.
Many problems need to be solved to promote the commercialized processing and distribution of steel bars. First, to solve the problem of concept, we need to break through the traditional decentralized one-to-one simple processing mode of reinforcement on site, and establish a new concept of social division of labor and "reinforcement processing and distribution".
