Many people may have special feelings for the cold roll forming machine, but at present, many cold roll forming machines in China are importing some foreign technologies. How about technology of the cold roll forming machine China and how is its development? Let's talk about it today.
In China, since the construction of cold roll forming units in the late 1950s, it has experienced a tortuous process of development and adjustment. In the late 1970s, there were only six cold-formed sections in China. In the 1980s, China's cold-formed steel developed rapidly, with a production capacity of only 16,000 tons in 1982. By 1989, there were more than 20 manufacturers in China, and the output of cold-formed steel has grown to more than 300000 tons. What's more, the design capacity has reached more than 600,000 tons. Among them, there are 14 key metallurgical plants with 45 sets of roll forming units. The varieties and specifications of cold-formed steel are also increasing, and now there are over 800 kinds. By taking advantage of reform and opening up, new requirements for the variety and quality of steel has been put forward to serve the national economic construction . The advantages of cold-formed steel are gradually recognized and accepted by people, and the production of cold-formed steel has made great progress. Up to now, there are more than 100 sets of cold roll forming units, with an annual production of 1.5 million tons and a total of more than 1,000 varieties and specifications.
Overview of technology:
(1) The rough forming section adopts the combination of shared roll and replaced roll. When changing the specification of the product, the rolls of some parts of the frame do not need to be replaced, which can reduce the reserve of some rolls.
(2) The flat roll is composed of combined roll, and six stands are used in the rough forming section. The vertical roll groups are arranged obliquely. The turning roll has a small volume. Compared with the traditional roll forming machine, the weight of rolls are reduced by more than 1/3, and the equipment structure is more compact.
(3) The curve of the roll profile is simple, and it is convenient to manufacture and repair a roll. And the reuse rate of rolls is high.
(4) The forming is stable, and the cold-formed steel machine has a wide range of specifications for making thin-walled and back wall tubes. However, there is still a gap between China and developed countries in terms of output, quality, variety, consumption and application, the whole equipment and technology. But it is certain that the cold-formed steel will develop better in China.
The above is an overview of the technology of the cold roll forming machine China. I'd like to know your opinion about this. Welcome to leave a message or put forward your views. And if you want to buy such an equipment, I hope you can have a look at our company's relevant introduction in this aspect, and I hope this will be helpful for your purchase!
