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所在平台: Udemy |
课程主页: https://www.udemy.com/course/material-of-construction-valves/
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**Coursera课程内容摘要：阀门材料与ASTM标准：选材、等级与应用** 本课程深入探讨了阀门材料选择的关键要素，重点关注ASTM（美国材料与试验协会）标准及其在不同材料等级中的应用。 **核心内容概览：** 1. **阀门材料分类：** 课程首先将阀门材料划分为四个主要类别，并基于其机械和化学性质进行解释，同时阐述这些分类在不同压力和温度条件下的相关性。 2. **锻造与铸造：** 课程对比了阀门制造中锻造和铸造工艺的关键区别、优缺点及适用场景。在此基础上，重点介绍了8项ASTM标准及其相关的20种材料等级，并对这些选定的等级进行了分类。 3. **ASTM标准与材料等级详解：** 课程对不同类型的钢材及其相应的ASTM标准和等级进行了详细讲解，包括： * **碳钢：** 如ASTM A216 WCB、A105等。 * **高温钢：** 如ASTM A217 WC6、WC9等。 * **低温钢：** 如ASTM A352 LCB、LCC等。 * **不锈钢：** 如ASTM A351 CF8、CF8M、CF3M等。 4. **应用指南：** 课程最后提供了实用的应用指导，涵盖了材料与流体类型、温度和压力的兼容性，以及在闸阀、截止阀、球阀和止回阀等常见阀门类型中的典型用法。同时，也指出了在材料选择时常见的错误及避免方法。 **目标受众：** 本课程特别适合管道工程师、机械工程师、维护专业人员和工程专业的学生，旨在为其在设计或使用阀门系统方面提供必需的实践和理论知识。
Valves are critical components in any piping system. Their proper functioning ensures flow control, pressure regulation, and overall safety of industrial operations. But selecting the right valve material is not just about compatibility-it requires deep knowledge of material behavior, ASTM standards, and application-specific conditions such as temperature, pressure, and fluid type.This course provides an in-depth understanding of valve materials, ASTM material standards, and their use in carbon steel, high-temperature steel, low-temperature steel, and stainless steel valve applications. You will learn how materials are classified, how to refer to ASTM standards properly, and how to select the correct grade for different operating environments.If you're a piping engineer, mechanical engineer, maintenance professional, or engineering student, this course is tailored to provide both practical and theoretical knowledge essential to designing or working with valve systems.1.Division of Materials in four categories2.Based on forging and casting, the selection of 8 ASTM standards and 20 associated grades3.Discussion on selected grades & ASTM in details:•Carbon steel•High temperature steel•Low temperature Steel•Stainless steelCourse Content:Section 1: Introduction to Valve MaterialsImportance of valve material in design and performanceOverview of piping system compatibilitySection 2: Division of Materials in Four CategoriesGrouping based on mechanical and chemical propertiesRelevance in different pressure and temperature conditionsSection 3: Forging vs. Casting in Valve ManufacturingKey differences, advantages, and use casesSelection of 8 ASTM standards and 20 grades (with classification)Section 4: ASTM Standards & Material Grades (Detailed Discussion)Carbon Steel (e.g., ASTM A216 WCB, A105)High-Temperature Steels (e.g., ASTM A217 WC6, WC9)Low-Temperature Steels (e.g., ASTM A352 LCB, LCC)Stainless Steels (e.g., ASTM A351 CF8, CF8M, CF3M)Section 5: Application GuidanceMaterial compatibility with fluid type, temperature, and pressureTypical usage in gate, globe, ball, and check valvesCommon mistakes in selection and how to avoid them
