Straightener machine for metal profiles, bars, tubes, wire, etc. straightening equipment. Straightener straightening roller by squeezing on the bar, etc. to change the straightness. Generally have two rows of straightening rollers, the number of ranges. There are two roller straightening machine, rely on two rollers (the middle concave, hyperbolic roll) of the angle on the different diameters of material straightening. Straightener main types of pressure, balance roller straightening machine, shoe roller straightening machine, straightening machine and so on rotating-bending.

       Then we look at the internationally renowned straightener:

       Comparison of well-known international manufacturer of steel rolling equipment, mainly in Germany, Japan and other Western capitalist countries. Such as Germany, Demag, Simak, Japan's Mitsubishi Heavy Industries and other large groups. (1) MDS MDS made straightener straightener is the world's largest manufacturing companies, since 1982 all over the world providing a total of 22 sets of plate straightening machine, the more typical cold roller straightening machine, 9 ( put into operation in 1997 in Austria), 15 h cold straightening machine (production in Sweden in 1998) and 1993 in China Taiwan's 11 roll thermal straightening machine. (2) SMS SMS straightener made design and manufacture of heavy plate straightener less, only 6 units, and more for the cold straightening equipment. Since the 90s, for the generous offer of the cold mill straightening equipment are HPL (High Performance Leveller) type. (3) MHI MHI straightener made since 1984, a total of 3 sets in Japan and South Korea to provide 3 sets of heavy plate mill of hot straightening machine, 3 sets of different types (see Table 3), of which the famous Kawasaki Mizushima Plant 15, retractable roller straightening machine, straightening force reached its maximum 41000 kN, is the world's first heavy-duty straightening machine was.

        That straightener What are the characteristics of it? Straightener features are as follows:
       1 plate production process control system in the various processes of theory, Straightening relatively weak. For two reasons: First, before straightening machine as a production aid were not taken seriously; second straightening process is relatively complex and difficult theory.
       2 powerful leveler generally used as controlled cooling plate production, control, hot Straightener temperature gradually decreased after the cold plate in heat straightening has become an important means to improve product quality, heat treatment line Cold straightening machine has become the necessary equipment. Some of the techniques varying from. 
       3 roll plate manufacturers, with varying roll away from the straightening machine, straightening thickness in order to expand the scope and production needs of high-strength steel. This form of straightening machine production is equivalent to the plate thickness and plate straightener straightener straightener range of two, give full play to the straightener straightening capabilities. Change from the leveler rolls due to the high cost performance, and widely prospect. Meanwhile, the change in the existing plate from the roller straightening machine has a strong practical reform.

        In fact, there are some good country straightener, and I also believe that our domestic straightener is definitely a great prospect, we are all to look forward to it!