| Customized by pressing plate manufacturer of Sanyi railway in Hai'an |
| ¡¡Hits£º1730¡¡AddTime£º2020/5/19 9:58:51 |
| Haian Sanyi Forging Co., Ltd. is an enterprise mainly engaged in precision forging, specializing in the production of all kinds of railway gusset plates, mining machinery, bridges, electric power, highways, railways, ships and other industries. The company covers an area of 10000 square meters, with a variety of professional production equipment nearly 100. With a professional and excellent production management team, professional technical research and development, production management, quality assurance, especially the production of various forging parts, railway gusset plate, etc., are in the forefront of similar products in China. Our products have been exported to North America, South America, Europe and Southeast Asia for many times, and have been highly praised. Segment bolt type: 1. Double head straight segment bolt, 2. Double head arc segment bolt, 3. Hexagon head arc segment bolt, 4. Hexagon head arc thread segment bolt, 5. Hexagon flange face arc thread segment bolt, 6. Non-standard segment bolt. Segment bolt grade, material and surface treatment. Segment bolt is designed to have different strength grade as other bolts and fasteners according to different application environment and stress conditions. Commonly used are: 5.8, 6.8, 8.8. The corresponding production materials are: Q235, 45 ¡Á steel, 40Cr and other materials. The common surface treatment of segment bolt includes: hot-dip galvanizing (hot-dip galvanizing), Dacromet (commonly known as zinc based chromate), powder zincification, multi-component composite powder zincification, etc. The surface treatment of segment bolt is very important. Because the segment bolt is installed underground, it plays the role of connecting segments. It is located in a humid environment, which is easy to cause bolt corrosion and rust. Therefore, if the surface treatment of the bolt fails to meet the design requirements, resulting in rust and other phenomena during the use of the bolt, the mechanical properties and tensile strength of the bolt will be affected after the corrosion to the inside of the bolt. Carbon nano spring, whose diameter can be up to 100 microns and length can be up to several centimeters, has a broad application prospect. It is expected to be used in the fields of retractable conductor, flexible electrode, micro strain sensor, super capacitor, integrated circuit, solar cell, field emission source, energy dissipation fiber, etc. for the preparation of visible carbon nanotubes Electronic devices provide the possibility and hope to be used in instruments, such as tension sensing bandages. The new structure can also be developed into multi-functional carbon nanotube fiber composite for utilization. Now, the electro-hydraulic control automatic turnout has replaced the backward human basin. Because of the large number of joints and complex curve in the turnout area, it is often the high incidence area of traffic safety accidents. The commonly used types of turnouts include single turnout, three turnout, cross turnout, junction basin and crossover basin. See Fig. 1 for the structure of various basins. (1) The single turnout has main line and side line. The turnout can be opened through the action of switch rail. The opening of side line and main line are controlled by transfer machine. Single turnout is a typical turnout type which is widely used on site. The function of railway track fastener system, railway rail fastener is the part on the track used to connect the rail and sleeper (or other types of under rail foundation), also known as the intermediate connection part. Its function is to fix the rail on the sleeper, keep the gauge and prevent the rail from moving in the longitudinal and transverse direction relative to the sleeper. The railway rail fastening system is divided into three parts: spring piece fastening system, fastening plate fastening system and spring strip fastening system. The high strength fishbolt can bear more load than the common bolt of the same specification. The material of ordinary bolt is Q235 (A3). The material of high-strength bolt is 35 steel or other high-quality materials. After being made, it is heat treated to improve the strength. Material comparison: high strength fishbolt is made of high strength material. The screw, nut and washer of high-strength bolt are made of high-strength steel, commonly used 45 steel, 40 boron steel, 20 manganese titanium boron steel, 35CrMoA, etc. Ordinary bolts are usually made of Q235 steel. From strength grade comparison, high strength fishbolt is widely used. The strength grades of 8.8s and 10.9s are commonly used, of which 10.9 is the most. The strength grade of common fishbolt is much lower, generally 4.8 and 6.8. From the stress characteristics comparison: high strength fishbolt applied pretension and friction transfer external force. The shear force of common fishtail bolt connection is transmitted by the shear resistance of bolt rod and the pressure of hole wall. When tightening the nut, the pretension is very small, and its influence can be ignored. In addition to its high material strength, the high-strength bolt also exerts a lot of pretension force on the bolt, so that there is extrusion pressure between the connecting members, so that there is great friction force perpendicular to the screw direction, and the pretension force, anti slip coefficient and steel type directly affect the bearing capacity of the high-strength fishbolt. From the use comparison: common fishbolt can be reused, high-strength fishbolt can not be reused. The company covers an area of 10000 square meters, with a variety of professional production equipment nearly 100. With a professional and excellent production management team, professional technical research and development, production management, quality assurance, especially the production of various forging parts, railway gusset plate, etc., are in the forefront of similar products in China. Our products have been exported to North America, South America, Europe and Southeast Asia for many times, and have been highly praised. Haian Sanyi team will be professional in production technology and management, looking forward to your drawings, samples or materials processing, we will serve you wholeheartedly, looking forward to creating brilliant career with each friend. |
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HAIAN SANYI FORGING CO.,LTD
MOBILE:18936109298
CONTACT£ºMR CHA
TEL:0513-88600106
FAX:0513-88600108
E-mial£ºsales01@hasanyi.com
Address£º189 Renmin East Road, Qutang Town, Hai'an City
Website£ºwww.hasanyi.com