1.1 这些激冷试验方法适用于铸件中无激冷的灰铸铁和铸件中具有特定激冷深度的冷硬铸铁。确定铸铁冷却倾向的两种试验方法如下。对于许多应用，如果选择适当尺寸的试件，则任何一种试验方法都是令人满意的。 1.1.1 试验方法A，楔形试验- 本试验适用于更高强度的灰铸铁。通过设计试样，加速冷却速度以形成冷铁。该试验方法比试验方法B简单，因为无需维护冷却块或板。 1.1.2 试验方法B，低温试验- 该试验适用于较软等级的灰铸铁，如果铸件具有规定的冷铁深度，则应使用该试验。 这种试验中的冷激是通过将试样的一个边缘浇铸在金属或石墨冷却板或块上而引起的。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准的一部分。 1.2.1 中的度量等价图 无花果。1和 2. 仅供参考。 在里面 毫米 在里面 毫米 在里面 毫米 1. / 32 0.8 3. / 8. 9.5 1. 25.4 1. / 16 1.6 7. / 16 12.1 1. 1. / 4. 31.8 3. / 32 2.4 1. / 2. 12.7 1. 1. / 2. 38.1 1. / 8. 3.2 9 / 16 14.3 1. 3. / 4. 44.4 3. / 16 4.8 11 / 16 17.5 2. 50.8 1. / 4. 6.4 3. / 4. 19 2. 1. / 2. 63.5 5. / 16 7.9 13 / 16 20.6 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 These test methods for chill testing apply to gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. Two test methods for determining the chilling tendencies of cast iron are covered as follows. For many applications, either test method will be satisfactory if test pieces of the proper dimensions are selected. 1.1.1 Test Method A, Wedge Test— This test is adapted for the higher-strength gray irons. The accelerated cooling rate to induce the formation of a chill is brought about through the design of the test specimen. This test method is simpler than Test Method B since maintenance of chill blocks or plates is not necessary. 1.1.2 Test Method B, Chill Test— This test is adapted for the softer grades of gray iron and should be used if the casting is to have a specified depth of chill. The chill in this type of test is induced by casting one edge of the test specimen against a metal or graphite chilled plate or block. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered to be part of the standard. 1.2.1 The metric equivalency charts in Figs. 1 and 2 are provided for information only. in. mm in. mm in. mm 1 / 32 0.8 3 / 8 9.5 1 25.4 1 / 16 1.6 7 / 16 12.1 1 1 / 4 31.8 3 / 32 2.4 1 / 2 12.7 1 1 / 2 38.1 1 / 8 3.2 9 / 16 14.3 1 3 / 4 44.4 3 / 16 4.8 11 / 16 17.5 2 50.8 1 / 4 6.4 3 / 4 19.0 2 1 / 2 63.5 5 / 16 7.9 13 / 16 20.6 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.