It has been a long time since the cold drawing pipe was used in our country. The design of cold drawing machine should actively absorb the feedback from various enterprises, and use modern computer design method to optimize the design of each system of cold drawing machine more scientifically and improve its reliability. Due to the late development of high-precision cold-drawn aluminum alloy pipe, there are few domestic production enterprises, and the scale is small. Generally, there is only one cold-drawn machine in the enterprise. The specifications and varieties of aluminum alloy cold-drawn pipe are limited, and the aluminum alloy grades used to produce cold-drawn pipe are few. Look at some advanced domestic enterprises, their investment level is on the basis of the world average level of half of the average, and then half of the average, that is, with the world average level of a quarter of the money can be built out of production capacity, you want to run how low the cost, how can there be no competitiveness? This constitutes a cold-drawn varieties of good quality, and Low energy consumption.
Cold-drawn pipe industry develops rapidly, but because there is no specialized market of a certain scale, it can not attract tourists from all over the world, so the production enterprises can only set up operations throughout the country, which not only increases the cost of enterprises, but also hinders the development of enterprises. If a professional market is built and the production and sales services are integrated, the enterprises will have a real foothold, go to the whole country and rush out of the country. With the increasingly fierce competition, the profit margin of the steel market is getting lower and lower, and the price transparency is increasing. Cold-drawn pipes only have high profits in high precision. Liaocheng Qianyi Company focuses on high-precision, high-quality cold-drawn products, and strives to open up high-end market. In recent years, the effect is obvious. With the cold weather in the north, site procurement decreased, building materials prices continued to decline, indicating the off-season effect gradually appeared. However, due to a new round of stable and moderately rising ex-factory prices of leading steelmakers such as WISCO, Shougang, Anshan Iron and Steel Co., Ltd., the cost of arrival in the latter part of the market will increase, coupled with the shortage of some market resources has not eased, Hebei Iron and Steel Co., Ltd. in northern China has implemented price capping measures, and the probability of steelmakers'prices falling sharply is not high.
The cold drawing pipe is a honing head made of 4~6 sand bars for finishing the inner hole. Stainless steel basket company reminds: honing not only high productivity, but also high machining accuracy, general dimensional accuracy can reach IT5-IT6, surface roughness can reach 0.8-0.1 micron, and can correct the geometric deviation of the hole. In order to further improve the honing productivity, the honing technology is developing towards the direction of strong honing, automatic honing with automatic size control, electrolytic honing and ultrasonic honing. The working pressure of honing machine oil stone has great influence on honing cutting performance, which directly affects cutting efficiency, honing oil stone wear and workpiece precision and roughness. Stainless steel basket company reminds: when the working pressure of honing is high, the honing cutting amount and the abrasion amount of honing oil stone are large, and the machining accuracy and surface roughness are also poor. When the working pressure of honing is small, the cutting amount and the wear amount of honing oil stone are small, and the machining precision and surface roughness are good.
Cold drawn pipe industry actively promotes technological progress, product innovation, energy conservation and emission reduction. Since the commissioning of Bayuquan cold drawn pipe New District, the coke ratio and PCI ratio of BF ironmaking have been greatly improved. The dry cleaning and seawater purification of the 5500 cubic meter blast furnace of Shougang Jingtang cold drawing pipe company has reached the international level. High grade silicon steel has been replaced by WISCO and Baosteel. In the first 11 months of 2009, the energy consumption and sulphur dioxide emissions of the cold drawn pipe industry decreased. At present, the development trend of cold-drawn pipe industry is realized under the background that the international cold-drawn pipe market continues to be depressed, the export of cold-drawn pipe is blocked, and the import impact is not small, and the market uncertainties are still many, which is really hard to come by. Therefore, China's precision cold-drawn pipe manufacturing industry should strengthen integration in its own field, there is no need for excessive competition, the division of labor and cooperation in technological development, the relevant industries and enterprises should take a long-term view, concentrate on new technology and new process research, and gradually form a division of labor, cooperation, multi-field, all-round. The research and development pattern has introduced the precision cold drawn tube products with independent intellectual property rights.
