In the past few years, cold roll forming machine products have been used as key equipment in the industires of electronics and machinery manufacturing alike. The products applied range from components and parts like ordinary guide rails, doors and windows, to some special profiles manufactured for special purposes, which are widely used. The section performance of cold roll forming steel's per unit weight works better than that of hot-rolled steel products. And it has high surface finish and dimensional accuracy. Cold-formed steel can replace hot-rolled steel to achieve the dual effect of saving raw materials and resources. Therefore, great attention has been paid to the development of cold roll forming steel. It is the customer's constant desire for the types, specifications, quality and the like of cold roll forming steel products that have led to the rapid development of the processing techniques of the cold roll forming machine.
The general processing techniques of cold roll forming machine process include: single sheet forming, roll forming, continuous forming and combined forming.
The single sheet forming process is to cut the sheet into a specified length in advance, and then send the sheet into the forming machine through a material selection roller. After rolling, the profile can be directly collected and stored, which is especially suitable for products that are easily deformed after the sheet being formed. Thus, the sheet metal roll forming machines are mostly used for small batch production. Simple equipment, low investment, and small covering area are their advantages.
The process of roll forming and recoiler forming is basically the same. The difference between them is: the joints of the recoiler-formed plates must be welded to make the plates continuously formed; the roll forming is applied in a single roll. The equipment investment and floor space required by these two processes are relatively large.
The combined forming is a kind of forming technique for special steel materials. Structural steel has special requirements on the forming techniques. It requires complex-forming equipment, which is suitable for the processing of high-strength plates. The equipment requirements are complex and the investment is also high.
