Bolt cement sleepers, spring cement sleepers manufacturers

规格：

600,762,900

价格：

量多优惠

产品：

水泥轨枕

Bolt cement sleepers, spring cement sleepers manufacturers
Cement sleepers, mining cement sleepers, cement sleeper prices, Shanxi cement sleepers, Shaanxi cement sleepers, mining cement sleeper models, cement sleepers manufacturers, cement sleeper pictures,
Rule cement sleepers,
Rule cement sleepers
Tai'an Dingxin Mining Equipment Co., Ltd. can customize various types of sleepers according to user needs. The user can also provide drawing parameters and construct according to the drawings. Users can also put forward specific requirements and develop new products that meet user requirements. And ensure that the quality is excellent, in line with national standards, and achieve user satisfaction and ideal results. Action is worse than excitement, pick up your phone and order now, Taian Dingxin looks forward to cooperating with you.
Although - and II-type pillows each have their own advantages, they also have shortcomings that are difficult to overcome. The new type II pillow successfully developed by Tai'an Dingxin Mining Equipment Co., Ltd. overcomes various shortcomings and can be produced without changing the process.
Advantages: ① Under the condition that the load-bearing capacity of the section under the rail does not change much
, the load-bearing capacity of the middle section is significantly improved (increased by . and . respectively). This solves the problem of insufficient load-bearing capacity of the middle section of type II pillows.
② Under the condition that the static load cracking strength of the section under the rail is almost equal, the middle section has a greater improvement (. and .3 respectively). The static load inspection standard is under the condition that the section under the rail remains unchanged. The middle section is raised from to.
③The maximum preloading stress value of concrete in the main section
The maximum preloading stress in the section under the rail is lower than the corresponding values of the other two type II sleepers. And. The maximum preloading stress in the middle section is lower than the other two type II sleepers. The corresponding values for the profile pillow decrease by . and . It is helpful to prevent the occurrence of internal micro-cracks (especially longitudinal cracks) in sleeper concrete caused by excessive pre-pressure stress.
④The enlargement of the cross-section solves the problem that the thickness of the concrete protective layer and the net spacing of the prestressed steel wires of the other two type II sleepers cannot meet the corresponding provisions of the current "Specifications", and can prevent the steel wires from expanding and cracking the ends of the sleeper. occur.
⑤ The stress increment of the cracked fatigue steel wire in the rail lower section decreases by . The crack width must increase the number of fatigue times or increase the load, thereby achieving the purpose of strengthening the middle section and extending its service life.
⑥So the performance ranking of these type II pillows is: new type II pillow rrr-type pillow rrr II-type pillow. Therefore, it is recommended to promote the application of the new Type II sleeper as soon as possible to strengthen the track and reduce the workload of maintenance and repair.
⑦ Another suggestion is that users have the most say. While the inspection agency conducts quality supervision of the factory, a user acceptance system for the quality of concrete sleepers should be established.
⑧The calculated base area of a single sleeper of the new Type II sleeper is increased, and the calculated compressive stress on the top surface of its track bed under the same train load is about lower than that of the other two types of sleepers.
⑨ The weight of a single sleeper is approximately 100% greater than that of Type II sleeper. It is possible to reduce the number of sleepers laid per kilometer when laying new Type II sleepers under the same operating conditions and track structure. The number of new type II sleepers laid per kilometer can be appropriately reduced without affecting the stability of the track. Obviously, the stability of the track will be improved without reducing the number of rails laid per kilometer.
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Tai'an Dingxin Mining Equipment Co., Ltd. looks forward to cooperating with you. Welcome to contact us by phone.
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Hu Yanyan
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