The Sand Mold Centrifugal-Casting Gray Cast Iron Pipes
-
摘要: 用稀土硅鐵處理的砂型離心灰鑄鐵管、管體抗拉強度可提高25.9%(沖入法)和42.4%(噴吹法),其平均管體抗拉強度達到214N/mm2(沖入法)、242N/mm2(噴吹法),都超過了國際(ISO13-78)標準所規定的砂型離心鑄鐵管的指標(180N/mm2),達到了金屬型離心灰鑄鐵管的抗拉強度要求(200N/mm2)。該鑄鐵管管壁厚度比國際標準規定的薄2.2mm(14.1%)。Abstract: The body tensile strengh of the centrifugal-casting gray cast iron pipes treated with RE can be improved to 25.9%(pouring of ladle) or 42.4% (spraying process), while their average values are 214N/mm2, and 242N/mm2 respectively. Both surpass the (ISO13-78) specification (180N/mm2) and reach the requirement of metal mold centrifugal-casting gray cast iron pipes. The cast iron pipe thickness is 2.2mm(14.1%) thinner than the international standard.
-
Key words:
- rare earth /
- gray cast iron /
- centrifugal-casting pipe /
- sand mold
-

計量
- 文章訪問數: 209
- HTML全文瀏覽量: 60
- PDF下載量: 10
- 被引次數: 0