芯科技,芯創(chuàng)新;燃?xì)鈮毫﹂_(kāi)關(guān),DG6S-3,84447140
U型換熱管可以放置在鋼筋籠的內(nèi)側(cè),也可以放置在鋼筋籠的外側(cè),用尼龍?jiān)鷰⑵涔潭ㄔ阡摻罨\上,并做好對(duì)U型管的保護(hù)。垂直管水平連接工藝:將垂直管引出承臺(tái)在樁口處彎曲垂直管使其從套管中穿過(guò),在承臺(tái)施工完畢后先進(jìn)行壓力試驗(yàn)再熔焊接入水平總管上,以確保接入總管上的熱交換管(D32,HDPE)的完好,無(wú)滲漏;待每根總管上的孔全部連接完畢后進(jìn)行壓力試驗(yàn)并觀(guān)察總管上與各個(gè)支管相連處的熔焊焊縫有無(wú)滲漏;然后將供回水分別接至相應(yīng)的分集水器;回填水平管,用沙子或泥土在管道層面上覆蓋15cm厚。
福建鴻飛達(dá)自動(dòng)化科技有限公司
創(chuàng)立于:2011年03月03日
位置:福州市閩侯縣新保路正榮財(cái)富中心SOHO 3棟8層;
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3E 033915 IPS KIT FOR VERT.ARM
3E 034012 A1.1-GS1.2 POWER SUP 50HZ
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3E 034415 P ADAPTER FOR FLASHDRIVE 1,8"
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3E 041187 ZENERBARRIER DC 16/100 EUROPE
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3E 041284 CABLE FOR TEACH HANDLE
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3E 041469 CABLE A1.14-PCU-X2 - TBH-X25
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為了防止“鎘脆”,鍍鎘零件的去氫處理溫度不能太高,通常為182℃。應(yīng)注意的問(wèn)題材料強(qiáng)度越大,其氫脆性也越大,這是表面處理技術(shù)人員在編制電鍍工藝規(guī)范時(shí)必須明確的基本概念。標(biāo)準(zhǔn)要求抗拉強(qiáng)度σb15kg/mm2的鋼材,要進(jìn)行相應(yīng)的鍍前去應(yīng)力和鍍后去氫處理。法國(guó)工業(yè)對(duì)屈服強(qiáng)度σs9kg/mm2的鋼件就要求作相應(yīng)去氫處理。由于鋼材強(qiáng)度與硬度有很好的對(duì)應(yīng)關(guān)系,因此,用材料硬度來(lái)判斷材料氫脆比用強(qiáng)度來(lái)判斷更為直觀(guān)、方便。
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