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【求助】誰(shuí)能提供一些30mm板厚的焊接熱循環(huán)曲線
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我準(zhǔn)備對(duì)30mm板厚的ASTM4130鋼做焊接熱模擬試驗(yàn)。通過(guò)理論計(jì)算的高溫停留時(shí)間和t8/5不能確切反映實(shí)際焊接熱循環(huán)曲線,特別是較低峰值溫度下這兩個(gè)參數(shù)無(wú)法計(jì)算,所以不能通過(guò)理論計(jì)算得出熱循環(huán)曲線。 就想問(wèn)問(wèn)誰(shuí)能提供一些30mm板厚的實(shí)際焊接熱循環(huán)曲線,我要做的參數(shù)是焊接線能量E=12、20、28KJ/cm,峰值溫度Tm=1350、1200、950、800、700℃。 我知道大家不太可能有完全一樣試驗(yàn)參數(shù)的焊接熱循環(huán)曲線,所以只要近似就行。比如說(shuō),試驗(yàn)材料材質(zhì)可以不同,E值靠近就行,Tm值想差不大。 謝謝了,一點(diǎn)金幣略表心意。 我的郵箱297122973@qq.com [ Last edited by yanghao381 on 2009-4-14 at 09:55 ] |
木蟲(chóng) (正式寫(xiě)手)
木蟲(chóng) (正式寫(xiě)手)
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can you let me know the pre-heat temperature? How about the arc efficiency (dependent on welding method)? I should be able to give you some answer. By the way, you do not use t800/500 to simulate Tp=800C and Tp=700C. Sorry, I cannot type Chinese with my computer at the moment, I will install it ASAP. |
木蟲(chóng) (正式寫(xiě)手)
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There are some welding modelling work you can use to calculate the welding thermal profile, such as Rykalin, Rosenthal, Hannerz, I found that Rykalin model is very good, the calculated results are extremly close to measured data. Enclosed are my calculations (Rykalin 3D program) for Tp1350C with three different heat inputs 12kJ/cm, 20kJ/cm and 28kJ/cm, you will need excel to plot them. |
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