cold flow

简明释义

冷流

英英释义

例句

1.In high-temperature applications, cold flow 冷流 can affect the integrity of seals.

在高温应用中，冷流 冷流可能影响密封件的完整性。

2.Engineers must account for cold flow 冷流 when designing components that will be under constant pressure.

工程师在设计将承受持续压力的组件时，必须考虑到冷流 冷流。

3.The material exhibited significant cold flow 冷流 under prolonged stress.

该材料在长时间应力下表现出显著的冷流 冷流。

4.The cold flow 冷流 of the polymer can lead to dimensional changes over time.

聚合物的冷流 冷流可能导致尺寸随时间变化。

5.To minimize cold flow 冷流, we selected a more rigid material for the application.

为了最小化冷流 冷流，我们为该应用选择了更刚性的材料。

作文

In the world of materials science and engineering, the term cold flow refers to the phenomenon where a material undergoes permanent deformation under stress at temperatures below its melting point. This behavior is particularly significant in polymers and certain metals, where the application of stress causes the material to slowly change shape over time. Understanding cold flow is crucial for engineers and designers, as it can impact the performance and longevity of components used in various applications.For instance, consider a plastic component used in an automotive assembly. When exposed to varying loads and environmental conditions, the material may experience cold flow, leading to dimensional changes that could affect the fit and function of the part. If the component is designed without accounting for this property, it may fail prematurely or cause malfunctions in the overall system. Therefore, engineers must carefully consider the potential for cold flow when selecting materials and designing components.Additionally, cold flow can also be observed in metals, especially those that are subjected to continuous loads over extended periods. For example, structural steel beams in a building may experience cold flow under constant weight, leading to sagging or warping. To mitigate these effects, engineers often incorporate safety factors into their designs, ensuring that the materials used can withstand not only the expected loads but also any potential deformations due to cold flow.Moreover, the understanding of cold flow extends beyond just mechanical properties; it also involves thermal and environmental considerations. Temperature fluctuations can exacerbate the cold flow phenomenon, as materials may soften or harden depending on their thermal history. This interplay between temperature and stress highlights the importance of conducting thorough testing and analysis during the design phase to predict how materials will behave in real-world conditions.In conclusion, cold flow is a critical concept that engineers must grasp to ensure the reliability and durability of their designs. By recognizing the potential for permanent deformation in materials, engineers can make informed decisions about material selection, design parameters, and safety factors. Ultimately, a comprehensive understanding of cold flow contributes to the development of safer, more efficient products that stand the test of time.

在材料科学和工程的领域中，术语冷流指的是一种现象，即材料在低于其熔点的温度下，在应力作用下发生永久变形。这种行为在聚合物和某些金属中尤为重要，当施加应力时，材料会随着时间的推移缓慢改变形状。理解冷流对工程师和设计师至关重要，因为它可能影响各种应用中组件的性能和寿命。例如，考虑一个用于汽车装配的塑料组件。当暴露于不同的负载和环境条件时，材料可能会经历冷流，导致尺寸变化，这可能会影响部件的适配性和功能。如果组件的设计没有考虑到这一特性，它可能会过早失效或导致整体系统中的故障。因此，工程师在选择材料和设计组件时，必须仔细考虑冷流的潜在影响。此外，冷流也可以在金属中观察到，特别是在那些在长时间内承受持续负载的金属中。例如，建筑中的结构钢梁在恒定重量下可能会经历冷流，导致下垂或变形。为了减轻这些影响，工程师通常在设计中引入安全系数，确保所用材料不仅能够承受预期负载，还能抵御因冷流造成的任何潜在变形。此外，对冷流的理解还超越了机械性能；它还涉及热和环境的考量。温度波动可能会加剧冷流现象，因为材料可能根据其热历史而软化或硬化。这种温度与应力之间的相互作用突显了在设计阶段进行彻底测试和分析的重要性，以预测材料在实际条件下的行为。总之，冷流是工程师必须掌握的一个关键概念，以确保其设计的可靠性和耐久性。通过认识到材料在应力下可能发生的永久变形，工程师可以做出明智的材料选择、设计参数和安全系数的决定。最终，对冷流的全面理解有助于开发出更安全、更高效的产品，经得起时间的考验。