Is the use of organic solvent degreasing solvent dissolution of grease on the oil and clear way, the ball bearing hinge applies only to a mild case of oil, commonly used in gasoline, acetone, benzene and other solvents finished two-way ball bearing hinge prices, solvent toxicity, ease of ignition and oil are not very clean. Rust on ferrous metal rust rust usually by hand, mechanical descaling, rust and chemical rust spray and other methods, but manual, mechanical and jet blasting the general effect is not ideal, the ball bearing hinges are in addition to items such as larger when it is difficult to clean, chemical rust is an oxide with an acid solution utilizing embroidered chemical reaction to dissolve the surface rust. Ball bearing hinge stripped in order to achieve the purpose of rust, collectively known as pickling rust, surface rust great good or bad influence on the durability of the coating, according to a large number of experiments abroad can show good or bad rust coating The age difference of more than four times the durability forest processing and anodized basic surface after degreasing and rust, generally can not immediately painting, in order to prevent re-rusting and improve the adhesion of the coating, the ball bearing hinge often used The method of oxidation of certain phosphate chemical treatment of finished steel ball bearing factory direct two-way, so that the basic surface to form a protective film. A support line for the same center of rotation of the ball joint bearing, in the hope on a straight line bearing the center of rotation. Ball bearing hinge structure, must pay attention to the difference between the rotational structure would generate an unreasonable force beyond calculation. Providing two or more continuous fixed support, in addition to the horizontal forces due to temperature changes, the need to consider the horizontal force generated by the rotation of the beam. The seat should be chosen because of longitudinal and transverse displacement and angle of beam deformation generated unfettered as possible and so on. For concrete bridge type according to its characteristics of elasticity of the seismic forces dispersed, the ball bearing hinge has a certain role to absorb the finished two-way ball joint bearing manufacturers offer so far, for these forms of bridges, unless there are special considerations ball bearing hinge generally use this form curved bridge abutment movement direction because of its inconsistency with the rotation direction of the bidirectional ball joint bearing, for this bridge type, generally hope to form a full range of movement and rotation of the seat, This is the basic requirement of finished steel ball bearing factory direct two-way, two-way ball bearing hinge, product life of 50 years provided by the Hengshui HaoTong Engineering Rubber Company. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you work into the brilliant, for a better future!