The yield stress of steel ball bearings seismic characteristics of the temperature dependence of the level of lead is affected by temperature to 15 ℃ prevail, early 0 ℃ is increased by 15%. 30 ℃ is down 12%. For stiffness after yielding, low temperature shock lead ball bearing steel prices, and features almost the same as natural rubber. Vertical shear deformation and residual compressive relationship LRB relationship vertical stiffness and shear deformation, as bearing shear deformation increases, reduced vertical stiffness. Seismic steel ball bearing vertical compressive load ultimate strength ultimate compressive strength of seismic steel ball bearing vertical load under no final conclusion lxqz steel ball bearings, a shape factor = 35, the second shape factor = 5:00, anti- Ultimate Compressive Strength of reach 49Mpa above, with respect to the use of stress is a greater safety factor. Seismic steel ball bearing gravity filling carefully checked after bearing a central location and elevation, with a gravity perfusion non-shrink grout cement mortar method, conducted in the following manner: grouting rock template with the top surface of the pad should take credible measures damping grid steel ball bearings to prevent leakage of plasma when gravity grouting. In sealed bearings around the mold, the filling tube inserted into the seat next to the center position, from the bearing center to the surrounding grout, remove air bubbles and ensure all voids are filled with mortar. Non-shrink cement mortar layer on the lower surface of the bearing surface of the anchor plate is flush with or slightly below the surface. Preliminary calculations before grouting should grout slurry required amount, the actual number of perfusion slurry should not be calculated excessive errors, prevent missing middle pulp. Seismic steel ball bearing LRB usually made of natural rubber, rubber hardness of 45 to 50 degrees, than the average of laminated rubber bearing to be softer. Mainly because LRB to adapt to the earthquake, (350%) there is a greater need for bearing shear deformation. The chemical composition of natural rubber, request content of the polymer is above 50%, the content of carbon black content of 10% to 35%, ash content of 10% or less. Seismic analysis showed that the ball bearing steel bridge for damping effect, significantly better than the laminated rubber bearings. Under the same premise, the same seismic waves, using laminated rubber bearing is adopted when the response steel bearing 502% to 70%, while the use of LRB response peak is 50% laminated rubber bearing ~ 45%, steel bearing 25% to 50%, fully embodies the characteristics of seismic damping steel ball bearings and energy dissipation capacity. Using coatings to protect steel structures, steel construction is a method currently the most commonly used. The corrosion resistance of the film is an important reason for this is as a coating polymer film, to varying degrees, can slow the corrosion resistance factor of water, oxygen and ions through the order to play the role of rust and corrosion. In addition, the stability of the coating film corrosive medium, and adhesion and mechanical properties of the substrate corresponding to the anti-corrosion coatings have a significant impact. Steel coating protective effect on the main three, shielding effect, cathodic protection and corrosion inhibition. 1. After a good shielding effect coating construction steel ball bearing, covering the steel surface, the steel can be effectively isolated from contact with the outside corrosive environment. That is, the coating prevents the oxygen in the atmosphere, water vapor and other corrosive ions for steel erosion. All coatings have a fundamental role in shielding. Grid damping steel ball bearings | Guangrun design and production of finished products | steel ball bearings provided by Hengshui Rubber Co. Guangrun. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) (www.grgcxj.cn) Hebei Hengshui, a leader in site construction materials, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In Guangrun Rubber Company leadership with the staff warmly welcome all inquiries negotiations to create Guangrun Rubber Company a better future. You can also access (www.grgcxj.cn/supply_details_46352075.html), for more information about the company.