- 类型:
- 煤矿
- 型号:
- 齐全
- 规格:
- 标准
Railway sleepers are materials used for the laying of railways, special track profile equipment and load-bearing equipment. Railway sleepers are also called track sleepers, rail sleepers or wooden sleepers.
Wooden sleepers are made of wood, and more than % of the wooden sleepers are made of pine. Pine wood is divided into radiata pine, Douglas fir, larch, sylvestris pine, etc. We call untreated wooden sleepers For plain sleepers, sleepers that have been treated with oil-immersed anti-corrosion treatment are also called anti-corrosion sleepers, oil-immersed sleepers and oil-filled sleepers.
The wood used to make wooden sleepers must be tough and elastic, and is often made of wood such as pine. Wood sleepers are called oil sleepers after anti-corrosion treatment, which can extend their service life. Wooden sleeper dimensions vary depending on the type of wood, production volume, and the load it is subjected to. Most of the wooden sleepers in China's railways are made of pine. The wooden sleepers on the trunk lines are . meters long and have a rectangular cross-section. The base width of the cross-section is cm and the height is cm.
Characteristics of anti-corrosion sleepers
Good elasticity, light weight, simple production and good insulation performance. The connection between the fasteners and the wooden sleepers is simple, and the laying, maintenance and repair, and transportation are convenient. There is a large friction coefficient between the wooden sleepers and the gravel ballast. Wooden sleepers are rich in ductile corrosion and can absorb the weight generated by train running better than other sleepers and are not easy to break. However, the disadvantages of anti-corrosion sleepers are that they have a short service life and consume a large amount of wood. Wooden sleepers are prone to decay, mostly due to insect pests, environmental and climate influences, and the spike holes on the wooden sleepers will loosen due to long-term use, so general anti-corrosion sleepers only have a lifespan of more than ten years at most.
Anti-corrosion sleeper treatment technology and materials
Anti-corrosion sleepers are treated with chemical methods. The wood sleepers are immersed in a mixed solution of coal tar and anthracene oil. After high temperature and high pressure, the wood is saturated with this The preservatives make it very hard, not only not easy to rot, but also waterproof? So the sleepers that have been treated with antiseptics are not afraid of water.
Nowadays, the stronger and more durable Pinus sylvestris and larch wood are often used on railways as the wood for making sleepers. Wooden sleepers are rich in corrosion resistance and can absorb the weight of trains better than other sleepers
I The oil-immersed anti-corrosion sleepers produced by the company are impregnated with a mixture of anti-corrosion oil and coal tar. The proportion of anti-corrosion oil must not be less than %, and the degree of anti-corrosion must comply with national standards.
Sleeper sales hotline
Contact person Liu Yanyan
Shandong Shengmei Mining Machinery Co., Ltd.
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