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48t砧座属于典型的厚大类铸钢件,在生产过程中铸件很容易产生组织疏松、尺寸胀大和粘砂等铸造缺陷,铸造难度很大。此铸件的成功生产对大型铸钢件的发展具有十分重要的意义。一、铸件结构特点及技术难点4 8 t砧座最大外形轮廓2500mm x 2200mm x 2120mm,最大壁厚2120mm?是大型锻压机(见图1)的重要组成部件,在使用过程中承受高达5MN以上的频繁冲击力,对铸件质量要求很高,需进行整体超声波检测。在生产过程中铸件很容易产生组织疏松、尺寸胀大及粘砂等铸造缺陷,尤其是铸件表面可能出现的大面枳粘砂导致产品报废,以上问题的存在制约了大型
48t anvil is a typical thick steel castings, castings in the production process is very prone to loose tissue, size expansion and sticky sand and other casting defects, casting a great difficulty. The successful production of this castings is of great importance to the development of large castings. First, casting structural features and technical difficulties 4 8 t anvil largest outline 2500mm x 2200mm x 2120mm, the maximum wall thickness of 2120mm? Is a large forging press (see Figure 1) an important component in the process of using up to 5MN or more Frequent impact on the castings of high quality, the need for overall ultrasonic testing. Casting in the production process is very prone to loose tissue, the size of the expansion and sticky sand and other casting defects, especially the castings may appear on the surface of Trichosanthes sticky sand products lead to scrap, the existence of the above problems have restricted the large