【機(jī)械類(lèi)畢業(yè)論文中英文對(duì)照文獻(xiàn)翻譯】板坯表面清理跟蹤試驗(yàn)報(bào)告【word英文502字5頁(yè)word中文翻譯840字5頁(yè)】

【機(jī)械類(lèi)畢業(yè)論文中英文對(duì)照文獻(xiàn)翻譯】板坯表面清理跟蹤試驗(yàn)報(bào)告【word英文502字5頁(yè)word中文翻譯840字5頁(yè)】,機(jī)械類(lèi)畢業(yè)論文中英文對(duì)照文獻(xiàn)翻譯,word英文502字5頁(yè),word中文翻譯840字5頁(yè),機(jī)械類(lèi),畢業(yè)論文,中英文,對(duì)照,對(duì)比,比照,文獻(xiàn),翻譯,表面,清理,清算,跟蹤,試驗(yàn)報(bào)告,word,英文,中文翻譯 附錄一： 板坯表面清理跟蹤試驗(yàn)報(bào)告 王瑩冰 [提要] 本文敘述丁我廠連鑄板坯表面清理的跟蹤試驗(yàn)情況攜 表面清理后的鋼坯，軋制 后鋼板上的裂紋及其他缺陷的出現(xiàn)率均減少．鋼板質(zhì)量提高。 關(guān)鍵詞 板坯 表面清理 鋼板質(zhì)量 我廠連鑄板坯清理工序于1992年l1月初開(kāi)始投入工作．為了弄清清理效果和正確掌握清理后的驗(yàn)收標(biāo)準(zhǔn)．1992年12月成立丁由質(zhì)管處、技術(shù)處、轉(zhuǎn)爐分廠、中板分廠參加的跟蹤試驗(yàn)組。現(xiàn)將跟蹤試驗(yàn)情況總結(jié)如下。 1 試驗(yàn)方案 (1)在半成品檢驗(yàn)站挑選5爐表面缺陷多的板坯進(jìn)行火焰清理，并詳細(xì)記錄表面缺陷的名稱、分布及清理情況，然后按爐發(fā)往中板切割，再根據(jù)清理面的大小，從大到小編上序號(hào)，并記錄每塊小板上的清理情況．最后按序號(hào)進(jìn)爐(清理面大的先進(jìn)爐)進(jìn)行跟蹤軋制。 (2)選5爐表面缺陷多的板坯(因臨近春節(jié)，只選到4爐)，不經(jīng)清理，按爐軋制．然后與經(jīng)清理的坯進(jìn)行比較。 2 板坯表面概況 (1)清理過(guò)的5爐(用火焰槍清理，清理寬度為lO0~300mm)，情況見(jiàn)表1。 (2)未清理的板坯表面質(zhì)量情況見(jiàn)表2 3、 鋼板表面缺陷 鋼板表面缺陷情況見(jiàn)表3。 4、 結(jié)論與建議 從跟蹤軋制的記錄統(tǒng)計(jì)分析看出： (1)板坯上肉眼可見(jiàn)的缺陷主要是裂紋(以縱裂紋為主，且多出現(xiàn)在連鑄機(jī)外弧面上)，其次是結(jié)疤、翻皮。 (2)火焰清理后的表面不太理想，有的地方吹得過(guò)深(達(dá)lO~20mm)，邊緣不夠平滑，使鋼板上出現(xiàn)鱗層、凹坑缺陷。如2—1—43爐第五塊上表面吹后有深度大于lOmm 的坑，軋后板上仍有凹坑，因此必須提高清理技術(shù)水平，力求處理后的表面平滑無(wú)棱角，最大深度不超過(guò)lOmm。 (3)表面清理對(duì)提高鋼板質(zhì)量、減少表面缺陷是有效的，經(jīng)清理的鋼坯軋制后鋼板上的裂紋出現(xiàn)率為8 ，而未經(jīng)清理的達(dá)4O．38 ，其它缺陷的出現(xiàn)率也有減少 清理后的5爐鋼坯，軋成鋼板裂紋出現(xiàn)率由84降至8 。 (4)板坯上輕微的細(xì)裂紋可以不清理，如1—9—185爐上表面全爐縱裂，但軋后只有一塊上表面出現(xiàn)裂紋(占l1 )。 (5)這次試驗(yàn)的鋼坯，軋制后鋼板上出現(xiàn)的缺陷主要是夾雜，其次是分層。而這兩種缺陷常常在坯表面是看不出的，它主要存在于鋼坯內(nèi)部，只有通過(guò)改進(jìn)煉鋼、連鑄工藝，提高鋼質(zhì)來(lái)解決。 附錄二：英文翻譯 The Report on the Slab Surface Cleaning Tracking Test Wang Yingbing Abstract: This paper describes slab surface cleaning butyl our factory with the tracking test after cleaning the surface of the billet, rolling on the plate after the emergence of crack and other defects as the rate reduced. Steel quality improvement. Key Words: Slab Surface Cleaning Steel Quality Our factory slab cleaning process began devotion work in the November of 1992. In order to understand cleaning effect and correctly grasp the acceptance standard after clearing. December 1992 established by tube place, butyl nidalai, converter factory, the tracking in plate group subsidiaries. Will now tracking test summary below. 1.Test Plan (1) Choose 5 furnace in semi-finished inspection offices of slab surface defects of flame clean-up and detailed records of surface defects name, distribution and clean situation, then press the furnace plate cutting, then send to the size, according to clear from large to small serial number, and record on every small plate. Finally the cleaning according to the serial number into the furnace (cleaning face big advanced furnace) for tracking rolling. (2) Choose 5 furnace more surface defect of slab (for near the Spring Festival, choose only to 4 furnace), with no clear, press furnace with the rolling. Then compared the billet clear. 2. Slab Surface Profile (1) The 5 furnace (cleaning a gun cleaning, cleaning with flame for lO0 ~ 300mm width), see table 1. (2) Not cleaning the surface quality situation of slab in table 2. 3. The Steel Plate Surface Defects The steel plate surface defects to table 3. 4. The records from tracking that rolling statistical analysis: (1) Slab on visible defects is mainly crack (with longitudinal crack appeared in the main and many outside surface caster), the second is scarred. (2) Flame cleaning surface after not ideal, some local blow too deep (20mm), lO ~ 20 of plate edge smooth, make enough to appear on the scale layer, indentation defects. Such as 2-1-43 furnace DiWuKuai surface blow lOmm pit depth greater than after the rear panel, rolling are still, so must raise pits to clear the technical level, the processed surface smooth without edges, no more than lOmm maximum depth. (3) To improve surface cleaning plate quality, reduce surface defect is effective, the cleaning plate after the billet rolling crack in the rate of 8, and appear without clearing reach 4O. 38, other defect rates have reduce clearing appeared in the five furnace, rolling ChengGangBan crack billet fell to appear by 84 rate of 8. (4) Slab of fine cracks on minor, such as 1 May not be clear -- 9-185 furnace surface all furnace longitudinal crack, but only a piece of a surface after rolling cracks (accounted for 11) (5) This experiment, the billet rolling plate after the defects is mainly on inclusion, followed by stratification. But these two kinds of defects in slab surface is often couldn't see, it mainly exist in the inside, it is only through the improvement of billet continuous casting technology, improve steel, steel to solve.