When using steel ball bearing hinges shall comply with the technical requirements of GB / T 699-1999 and GB / T 700-2006 of the relevant provisions. When the ball joint bearing steel castings, its chemical composition, mechanical properties after heat treatment and after heat treatment and mechanical properties and impact toughness in line with relevant regulations, while the ball bearing hinge castings shall meet the following requirements; castings After the fixed hinge machined bearing sales, casting defects present on the surface of a ball joint mount and appear not allowed when using the premiere and performance, allowing repair cracks and other impermissible cast once more than the specified defects and appear member shall not use and repair. Steel castings before welding, clearly showing the defect treatment should be good metal far and away from the edge of the groove in the 30mm range and groove surface is clean, simple and honest To which the casting surface grinding to meet the quality requirements, and shall have not welding. Crack, the ball bearing slag hinge holes and other defects, pots and bottom welded ring up does not affect its mechanical properties. Cast steel castings required according to the provisions of ultrasonic visits, ball joints and bearings should reach cast requires a fixed hinge bearing, internal cracks are not allowed. Brass ball bearing hinge seal materials used in the fixed hinge bearing manufacturer, bearing Uno General brass, ball joint bearing its mechanical properties and chemical composition of indicators should be specified. Matters must be special attention before painting before painting the basic surface to be coated must be processed to reach the surface smooth and clean, is the key to ensure the coating quality. Otherwise, due to the substrate surface is not smooth, retained harmful substances, ball bearing hinge will seriously affect the adhesion of the coating, the coating peeling off prematurely and lose its protective effect. That is carried out prior to painting to perfect surface treatment, to enhance coating adhesion, better play the role of coatings to protect and prolong its life, plays an extremely important role. Ball bearing hinge protective effect is good or bad, it was considered one-third coatings, construction of six points, the extent of the visible surface treatment and fine construction directly affects the protective effect, according to the experiences, the basic surface treatment include the following. General use of organic solvent degreasing degreasing, chemical degreasing fixed damping hinge bearing suppliers, ball bearing hinge electrochemical degreasing and emulsifying cleaning degreasing and other methods. The most commonly used organic solvents and degreasing chemical degreasing. Ball bearing hinge is the use of chemical degreasing grease saponification occurs in alkaline medium were removed by saponification oil, it is also called hot alkaline degreasing method, this oil works best damping fixed hinge bearing suppliers, Zigong fixed hinge bearing, 13833855982 provided by Engineering Rubber Co., Ltd. Hengshui HaoTong. 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!