The 315 evening party that ended a few days ago revealed many unknown and heinous business behaviors in many industries, and also let words like fire extinguishers that are bigger and bigger as the fire is extinguished, fireproof glass that is not fireproof, starch intestines made of bone mud, and donkey meat burning without donkey meat refresh people's three views. In the current consumer environment, we need to learn how to distinguish. Taking the oil immersed sleepers familiar to Qingdao Tiehan as an example, oil immersed sleepers play an important role in railway turnout engineering. The word "oil immersed" also comes from the high-temperature and high-pressure immersion anti-corrosion oil treatment carried out to prevent moisture, corrosion, and prolong the service life of sleepers.
After being soaked in oil, the surface of the sleepers is mostly black, and the shiny black appearance gives a solid and durable feeling. However, there is still a "disguiser" in the market for anti-corrosion sleepers. This type of sleeper is not treated with oil immersion, but simply by applying anti-corrosion oil to the surface of the wood, it can also achieve a black and shiny appearance on the surface. Of course, there are significant differences and advantages between these types of painted sleepers and genuine oil immersed sleepers. Next, Qingdao Tiehan will briefly analyze where these differences and differences are reflected.
Just now we mentioned that the painted sleepers, in simple terms, are evenly coated with anti-corrosion oil on the dry surface of the wooden sleepers, forming a protective layer on their surface, which plays a role in moisture prevention and corrosion resistance. This processing method is simple and cost-effective, but its protective effect is relatively poor and its durability is short, making it easy to be affected by the external environment and fail. After long-term use, the anti-corrosion oil applied will gradually be worn, peeled off, and peeled off, causing the sleepers to lose their anti-corrosion ability, thus requiring regular maintenance and replacement.
In contrast, oil immersed sleepers adopt more advanced processing techniques. The production process involves placing wooden sleepers in specially designed containers, allowing anti-corrosion oil to fully penetrate the interior of the wood through high temperature and pressure, ultimately forming a solid and durable oil immersed sleeper. This treatment method can not only effectively prevent moisture and corrosion, but also improve the strength and hardness of the sleepers, extending their service life. The protective effect of oil immersed sleepers is more long-lasting, not affected by the external environment, and does not require frequent maintenance and replacement, saving manpower and costs.
The difference between the two is so significant that we naturally need to understand how to distinguish them. To avoid some unscrupulous merchants selling painted sleepers to us as oil soaked sleepers without realizing it. There are many ways to distinguish, among which the most direct and accurate are drilling sampling and cross-sectional inspection. The wood chips in the color of the logs indicate that they were painted, as the interior of the wood cannot be painted. If the color of the wood chips is close to the surface color of the sleepers and appears brownish black, it can be basically concluded that they are oil immersed sleepers.
To sum up, oil immersed sleepers have many advantages over painted sleepers, such as longer lasting protective effects, greater durability, and longer service life. In railway turnout engineering, the correct selection of oil immersed sleepers can not only improve the quality of railway construction, extend the service life of sleepers, but also enhance the safety and reliability of railway lines. Therefore, the application prospects of oil immersed asphalt sleepers are broad and worthy of further promotion and application by railway workers.
