pour point

简明释义

零

英英释义

例句

1.The oil's pour point is crucial for determining its usability in cold climates.

油的倾点对于确定其在寒冷气候中的可用性至关重要。

2.The pour point of this diesel fuel makes it unsuitable for use in extremely cold conditions.

这种柴油的倾点使其不适合在极冷条件下使用。

3.To ensure the engine runs smoothly, we must check the pour point of the lubricating oil.

为了确保发动机平稳运行，我们必须检查润滑油的倾点。

4.A low pour point indicates that the oil will remain fluid at lower temperatures.

低倾点表明油在较低温度下仍然保持流动状态。

5.During winter, it's important to choose a motor oil with a suitable pour point.

在冬季，选择具有合适倾点的机油非常重要。

作文

In the world of lubricants and fuels, understanding the physical properties of these substances is crucial for their effective application. One such important property is the pour point, which refers to the lowest temperature at which a liquid remains pourable or can flow under the influence of gravity. This property is particularly significant in industries that rely on oils and fuels, as it determines how well these substances can perform in cold environments. When the temperature drops below the pour point, the liquid begins to solidify or thicken, making it difficult to pump or use effectively.The pour point is essential for various applications, especially in the automotive and aerospace industries. For instance, engine oils must maintain a low pour point to ensure that they can circulate properly in engines during cold starts. If the oil thickens too much, it can lead to increased wear and tear on engine components, ultimately affecting performance and longevity. Similarly, fuels used in colder climates must also have a low pour point to prevent issues such as fuel line blockages and inefficient combustion.To measure the pour point, standardized testing methods are employed. The most common method involves cooling a sample of the liquid at a controlled rate and observing the temperature at which it ceases to flow. This measurement is vital for manufacturers who need to formulate products that will meet the demands of different environmental conditions.In addition to its practical applications, the pour point also has implications for environmental considerations. For example, when dealing with crude oil or other petroleum products, understanding the pour point can help in assessing the risks associated with spills in cold environments. If the oil has a high pour point, it may solidify quickly upon contact with cold water, making recovery efforts more challenging.Moreover, the pour point can vary significantly depending on the composition of the liquid. For instance, additives can be used to lower the pour point of certain oils, enhancing their performance in low-temperature applications. These additives work by disrupting the crystalline structure that forms as the temperature drops, allowing the oil to remain fluid at lower temperatures.In conclusion, the pour point is a critical factor in the performance and usability of lubricants and fuels, particularly in cold weather conditions. Its significance spans across various industries, impacting everything from engine efficiency to environmental safety. By understanding and optimizing the pour point, manufacturers can create better products that meet the needs of consumers and industries alike. This knowledge not only enhances product performance but also contributes to safer and more efficient operations in challenging environments.

在润滑剂和燃料的世界中，理解这些物质的物理特性对于其有效应用至关重要。其中一个重要特性是倾点，它指的是液体在重力作用下保持可倾倒或流动的最低温度。这个特性在依赖油和燃料的行业中尤为重要，因为它决定了这些物质在寒冷环境中的表现。当温度降到倾点以下时，液体开始固化或变稠，使其难以有效泵送或使用。倾点对各种应用至关重要，尤其是在汽车和航空航天行业。例如，发动机油必须保持低倾点，以确保在冷启动时能够正常循环。如果油变得过于稠厚，可能会导致发动机部件的磨损加剧，最终影响性能和寿命。同样，在较冷气候中使用的燃料也必须具有低倾点，以防止燃料管道堵塞和燃烧效率低下等问题。为了测量倾点，采用标准化的测试方法。最常见的方法涉及以受控速率冷却液体样本，并观察其停止流动的温度。这一测量对需要制定适应不同环境条件的产品的制造商至关重要。除了实际应用外，倾点还对环境考虑产生影响。例如，在处理原油或其他石油产品时，了解倾点可以帮助评估在寒冷环境中泄漏的风险。如果油的倾点较高，它可能在接触冷水后迅速固化，从而使回收工作更加困难。此外，倾点因液体的组成而有显著变化。例如，可以使用添加剂来降低某些油的倾点，增强其在低温应用中的性能。这些添加剂通过破坏随着温度下降而形成的晶体结构，使油在较低温度下保持流动。总之，倾点是润滑剂和燃料性能及可用性的关键因素，特别是在寒冷天气条件下。它的重要性跨越多个行业，影响从发动机效率到环境安全的方方面面。通过理解和优化倾点，制造商可以生产出更好的产品，以满足消费者和各行业的需求。这一知识不仅提升了产品性能，还促进了在严峻环境中更安全、更高效的操作。