Universal wheel and repair methods?

Castor wheels, adjustable feet manufacturers of traditional repair method is close to the outer wall of heavy duty castor wheels directly welded steel casing shall be reinforcing, universal wheel heavy universal wheel are heavy on the production process of heavy duty castor wheels of all kinds of defects. Not only difficult to operate and risk, and to bend and shape irregular for heavy duty castor wheels on all kinds of defects, the traditional repair method is close to the outer wall of heavy duty castor wheels directly welded steel casing shall be reinforcing, not only difficult and risky operation, and to bend and shape irregular section can not be implemented and kept losing would not be allowed to change. Via a pipeline safety evaluation and the development of science and technology center for many years research and development of epoxy composite steel shell casing technology can solve this problem completely, and can effectively restrain the corrosion process, heavy universal wheel so as to realize the line kept losing cases of permanent repair without maintenance. Pipeline oil transportation and the finished product fluid ( Such as gasoline, kerosene, diesel oil, etc. ) Natural gas is the most economic and reasonable transportation mode, but such piping within the medium inflammable, explosive and toxic, therefore, the safe operation is very important. Especially since the 1950 s, countries around the world with a large number of oil and gas pipelines laid, pipeline accident to happen from time to tome, sometimes with disastrous consequences. Heavy duty castor wheels also need not frequent replacement of reinforcing repair. At the same time, because of the epoxy adhesive has good chemical resistance, therefore, corrosion in pipe wall thinning or corrosion perforation can effectively inhibit corrosion intensifies. Heavy universal wheel rolling process analytical technology of heavy universal wheel rolling processing parsing technology since the late 1980 s began to widely used finite element method ( FEM recently, with the development of computer output parsing techniques has been developed from 2 d to 3 d senior deformation analysis. Thus improve the dimensional precision and quality of the product, the following introduce the typical analytical technology. Extended analytical technology of rolling mandrel rolling mill rolling with mandrel and roller, and therefore different from rolling, roll on the roll direction and core rod without the free deformation of contact area. Due to the free deformation zone is a rack are rolling, so for the correct understanding of core rod rolling mill of comprehensive characteristics, including the free deformation zone deformation it is very important to predict the complex deformation prediction if the cache implementation algorithm of the past is unable to obtain high accuracy, high precision is required resolution. Considering the direction of rolling shear deformation, using common expansion plane deformation analytical approximate 3 d. The result shows that calculation value and experimental value is consistent. Recently, with the development of computer technology, accelerate the full 3 d finite element analytic technology development, also can be used to frame the influence of tension between the analytical and roll the speed difference between the billet and interpretation. Sizing rolling parsing technology using sizing rolling due to the inside have no tool, so when rolling thick wall pipe rolling the interior surface of irregular shape. Using three roller mill, rolling the inside of a hexagonal shape. By using three dimensional finite element method analysis, made clear the inside edges happening mechanism and the countermeasures should be taken. Adopt the near perfect circle ellipticity = 0. 986 pass can obtain the basic uniform wall thickness, but in the near perfect circle ellipticity = 0. Came in a 960 pass six edges and corners clear inside.