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舊 2012-09-14, 11:13   #8
A-YUNG
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上面文中所提到的p38是grade 136,如果作者沒有記錯,應該就是章醫師所提到的不銹鋼級別304,306,316,其中的316。我以前只常聽過machine的動詞,多半是指車床加工,如果該作者沒有弄錯,316早已在龍洞歷煉多年了!

我去搜尋了grade 136,找到一些相關資料,其中136主要又分136L和136H,也就是標準的之外,又分低含碳的和高含碳的。不過136和136H含碳量一樣,機械性能強度似乎也是相當(在以下連結可以看到相關資料)。

另外,以下主要提到,136無法藉熱處理去強化硬度。銲接電阻較高,比同級要求更高功率的設備。第三段提到經過"Ugima"處理後(UGITECH公司出產的),機械性能更高。但我們如果是加熱到136熔化的溫度,而破壞其材料結構,也許還是可行的。


http://www.azom.com/article.aspx?Art...863#_Machining

Heat Treatment
Solution Treatment (Annealing) - Heat to 1010-1120°C and cool rapidly. These grades cannot be hardened by thermal treatment.

Welding
Excellent weldability by all standard fusion methods, both with and without filler metals. AS 1554.6 pre-qualifies welding of 316 with Grade 316 and 316L with Grade 316L rods or electrodes (or their high silicon equivalents). Heavy welded sections in Grade 316 require post-weld annealing for maximum corrosion resistance. This is not required for 316L. Grade 316Ti may also be used as an alternative to 316 for heavy section welding.

Machining
A “Ugima” improved machinability version of grade 316 is available in round and hollow bar products. This machines significantly better than standard 316 or 316L, giving higher machining rates and lower tool wear in many operations.
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此文章於 2012-09-14 21:41 被 A-YUNG 編輯. 原因: 補充
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