preform

简明释义

英[priːˈfɔːm]美[priˈfɔrm]

v. 预先形成

n. 粗加工的成品

英英释义

单词用法

同义词

反义词

例句

1.The preform design applying the method for preform optimization based on FEM can improve the deformation uniformity within forgings effectively.

应用基于正向有限元数值模拟和最优化方法进行坯料预成形设计的新方法，可显著提高锻件各部位的变形均匀性。

2.Numerical simulation results show that the optimal preform H/D dimension thus obtained can greatly reduce hammering times and die wear.

数值模拟结果表明获得的预成形H/D最佳尺寸可明显减少模锻锤击次数和模具磨损。

3.Two Methods: Used to liquid impregnate carbon fiber preform are introduced.

介绍了液相浸渍炭纤维坯体的两种方法。

4.The practice proves the reverse simulation technique is a very efficient approach to optimize the preform design.

实践证明，反向模拟技术对于预成形优化设计是一种非常有效的方法。

5.The recent trend of net shape and near net shape manufacturing requires that forging preform design should be optimized to save materials and energy.

净形和近净形制造要求锻造预成形设计不仅要实现产品的形状，而且要实现材料、能耗、锻件质量等目标优化。

6.The superior preform of composites is a basic requirement and one of key factors for obtaining superior properties composite.

高质量复合材料预制块是获得高性能复合材料的基本要求和关键要素之一。

7.The artist decided to preform the sculpture in clay before casting it in bronze.

艺术家决定在铸造青铜之前先用粘土预成型雕塑。

8.To save time during production, the team will preform the fabric into specific shapes.

为了节省生产时间，团队将把面料预成型为特定形状。

9.Before the final assembly, we must preform the components for better accuracy.

在最终组装之前，我们必须预成型组件，以提高准确性。

10.The factory will preform the plastic before molding it into final shapes.

工厂将在成型之前预成型塑料。

11.Engineers need to preform the metal parts to ensure they fit together correctly.

工程师需要预成型金属零件，以确保它们正确配合。

作文

In the world of manufacturing and design, the term preform (预成型) plays a crucial role in the production process. A preform is essentially a preliminary shape or structure that is created before the final product is formed. This concept is especially significant in industries such as plastics, glass, and metalworking, where precision and efficiency are paramount. Understanding the importance of preforms can help us appreciate the complexities involved in modern manufacturing. To illustrate this, let’s consider the plastic bottle industry. When a company wants to produce plastic bottles, the first step often involves creating a preform (预成型). This preform is a small, test-tube-like piece of plastic that is molded into a specific shape. Once the preform is created, it undergoes a process called blow molding. In this process, the preform is heated and then inflated to take on the final shape of the bottle. This method not only saves time but also significantly reduces waste, making it an efficient choice for manufacturers. Another example can be found in the glass industry. Glass manufacturers often use preforms (预成型) to create complex shapes. Instead of starting with raw materials and trying to mold them into the desired shape directly, manufacturers will first create a preform. This preform can then be refined and shaped into the final product through various heating and molding techniques. The use of preforms (预成型) allows for greater control over the final product's dimensions and quality, ensuring that it meets the necessary specifications. Moreover, the concept of preform (预成型) is not limited to physical products. In software development, for instance, developers often create preforms (预成型) of applications or features before the final version is developed. These prototypes allow teams to test functionality, gather user feedback, and make necessary adjustments before committing to full-scale production. This iterative process mirrors the way physical preforms (预成型) are used in manufacturing, highlighting the universal application of the concept across different fields. Understanding preforms (预成型) helps us grasp how industries optimize their processes and improve product quality. By utilizing preforms, manufacturers can reduce costs, minimize waste, and enhance the overall efficiency of their operations. This is particularly important in today's competitive market, where businesses must continually innovate to stay ahead. In conclusion, the term preform (预成型) encapsulates a vital aspect of modern manufacturing and design. Whether in the production of plastic bottles, glass products, or software applications, preforms (预成型) serve as a foundation upon which final products are built. Recognizing the significance of preforms (预成型) allows us to appreciate the intricacies of production processes and the innovative strategies employed by manufacturers to deliver high-quality products efficiently. As technology continues to evolve, the role of preforms (预成型) will undoubtedly remain integral to the future of manufacturing, paving the way for even more advanced and sustainable practices.

在制造和设计的世界中，术语preform（预成型）在生产过程中扮演着至关重要的角色。preform本质上是一个初步形状或结构，在最终产品形成之前创建。这一概念在塑料、玻璃和金属加工等行业尤为重要，因为在这些行业中，精度和效率至关重要。理解preforms的重要性有助于我们欣赏现代制造中的复杂性。为了说明这一点，让我们考虑塑料瓶行业。当一家公司想要生产塑料瓶时，第一步通常涉及创建一个preform（预成型）。这个preform是一个小型的、试管般的塑料件，被模制成特定的形状。一旦创建了preform，它就会经历一个称为吹塑的过程。在这个过程中，preform被加热，然后膨胀以获得瓶子的最终形状。这种方法不仅节省时间，而且显著减少了浪费，使其成为制造商的高效选择。另一个例子可以在玻璃行业找到。玻璃制造商通常使用preforms（预成型）来创建复杂的形状。制造商通常不会直接从原材料开始并试图将其模制成所需的形状，而是首先创建一个preform。然后，这个preform可以通过各种加热和成型技术进行精炼和成型为最终产品。使用preforms（预成型）允许对最终产品的尺寸和质量进行更大的控制，确保其符合必要的规格。此外，preform（预成型）的概念并不限于物理产品。在软件开发中，例如，开发人员通常在最终版本开发之前创建应用程序或功能的preforms（预成型）。这些原型允许团队测试功能、收集用户反馈，并在全规模生产之前进行必要的调整。这一迭代过程与物理preforms（预成型）在制造中的使用相呼应，突显了这一概念在不同领域的普遍应用。理解preforms（预成型）有助于我们掌握各行业如何优化其流程并提高产品质量。通过利用preforms，制造商可以降低成本、最小化浪费，并增强其运营的整体效率。这在当今竞争激烈的市场中尤为重要，因为企业必须不断创新以保持领先。总之，术语preform（预成型）概括了现代制造和设计的一个重要方面。无论是在塑料瓶、玻璃产品还是软件应用的生产中，preforms（预成型）作为最终产品构建的基础。认识到preforms（预成型）的重要性使我们能够欣赏生产过程的复杂性以及制造商为高效交付高质量产品而采用的创新策略。随着技术的不断发展，preforms（预成型）的角色无疑将在制造的未来中保持不可或缺，为更先进和可持续的实践铺平道路。