标准号:IS 4475 Pt.3-1989
发布日期:1990/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard ( Part 3 ) covers the requirements of hand operated geared treatment ladles (both taper and straight sided shell) suitable for S. G. iron foundries in the following two types. Treatment ladles shall be of lip-pouring and tea-spout pouring type as shown in Fig. 1 and 2.1.1.1 Plunging LadlesThese ladles can be either open top or covered as shown in Fig. 3.1.1.2 Sandwich LadlesThese ladles also can be either open top or covered as shown in Fig. 4.