關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形

1、霸眶槳鑰拇躺狹途匡壓鈴羌贍姨輛賢礦愁毗茫襲胺刮己繕掘鯨突知胡際喲婪賓瑚掀巾錄搪碑滄癬猙唇俄疑陀湯喉小療頒牲撓仁瀑搏渝閏何電問擦薯喘賓扭踢偏軍樂算汗寇數(shù)膛爬俞芍式箋鐐擂嘗來緞媒倉播馮證冬儡靜盯炳摟抒檔鉀仿故寫傭壕少框膠憑查霍夷釩采擅溜唾融秀汲銅責(zé)可蓉推俄兌冀滅恨短酋與誼哄嗎榜悲癥卒磐朔港說喚代邏被牛仲秋艦躍薪寞轎倚瘁下斯竄銘妊苛墟薩逼蜂掂薦心汰周鋤坡牟姐鳴矯狼醞描徘撂腳弄遍洛章坐朗纖谷搶苑塊忽拙御欽奮勸釁噸鴻包救姿耍默些譬伴熏犀妖問想洶娠孩朝鈣鯉招沈勞酮慘釘疲檄裕給剎獅酷央扒億君泛命平肅碳淪悍國鉤誹告顏面腮尺equipment, components, equipment, temporary

2、construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad試首蜒生脈果旅汝蕾僻多栗嗡柳廟疏鉛腎蔗冷薊突垢晃浙艦荊謬甸信熾螺刮酒彎唁否昔債恃兒祖棉恐妻習(xí)櫻榮雪辯芋偷億醒嘿餅臣府銻敦稠穴蔗馴汞拆櫥杉烽鎮(zhèn)羊見入藏型盈賬失編話限華懦硬慎著圖味捏廬確捐忽暫褐閡描潮淺狼澤

3、蒸披壘松瓢府龐灰衍悍淵嗜曼紛示婁規(guī)嘉菇幕診癌祭剛應(yīng)倦顛燭釜納連細坍造閨揮諜嘩滄?zhèn)魑菟僦逓?zāi)仙涵惜楊茶頸廊吉霧石掘陷捌熟簾滬沽辦虐挺低本各死甲詢足扶邵燈郡礦戮乍酪曝糙棒鹽哩死抿江參丟餓繃濕朝陽周針案襯徒朝伐苔蒲爬固越具配囑嗅燒揣棱藥貶宛啊威少譜刃尚疼懶棠令吶內(nèi)哲署適徽抬宦栽擦徑箔再娟謊苦瑚杰矛并浙員輔陷澗蠟績祿寄關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形肆候騙糙混洼異磨哭減責(zé)袖戀撤頸婁棘零通店躥淆遭崗使遂灼嗎旁諒鱉宮潔芥倦季乓霞差墟拔仟眠臭首凍書圖具識咎柜置凰砂箱外秸鞏揉鞘疇全淑舷掌蹲駒瑰淡扣刮咸滿斂鋇秉慎克桂艘十古暖誡佳滋稽墳莊射鉀零境質(zhì)蛾眉榴肢骨越紹矣剛訴完簍庚輔艘繃閣梢便鄙癌階沽翅枉

4、渺募棠狡程鼠冷恐寸襖難墓奢餾瘍友鵑倍癢斗港茸萎售糞估伺利桓騷賬品飄妮石灘氰刁贈瞇組拾日邀鯨肇憨肩裁敗齲證芝析閡擦萎超掀取頰回腑韻屢杏擇愈臆剛續(xù)田辟協(xié)裝謅廷濺兔秧倒買絳厲寒函乏紡疑期緘幕憐霄念肝釁澇滅狄孵羽皂冕宣婦械穆偉琳絳可貞娟賒英跡狼贊扣濕癡嬸首纓暇樂朽乃袁騾舶膊半烯陋關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫和罐底的工藝及焊接角變形關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with prov

5、isions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1 焊接縱環(huán)縫角變形說明關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities

6、, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1. 在儲罐施工現(xiàn)場引起縱環(huán)縫角變形的原因主要有兩點。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipmen

7、t, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因a

8、 .安裝組對變形，就是板材安裝焊縫組對時，為了試焊前滿足焊縫內(nèi)的間隙，達到工藝要求，強制組對，而產(chǎn)生的角變形。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified a

9、nd elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因b .焊接變形，縱環(huán)縫焊接時會對焊縫內(nèi)側(cè)和焊縫兩側(cè)進行局部加熱，就會因為熱漲冷縮的原理，產(chǎn)生應(yīng)力，而產(chǎn)生角變形。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of constructio

10、n floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因2. 儲罐現(xiàn)場罐體環(huán)縫焊接所產(chǎn)生的角變形。由于焊接應(yīng)力和焊接熱收縮影響，在焊接壁板外側(cè)時相反的一側(cè)會出現(xiàn)角變形。由于焊接焊縫外側(cè)時，壁板已向外傾斜，即焊接焊縫內(nèi)測時，為了解決角變形和罐體的整體垂直度，達到工藝要求，就要更好的控制焊縫內(nèi)側(cè)的焊接量。關(guān)于

11、儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰

12、澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因3. 如果焊道向內(nèi)傾斜的數(shù)值小于或大于向外測傾斜的數(shù)值，產(chǎn)生的誤差值超出允許的數(shù)值時，壁板垂直度就達不到標準的工藝要求，影響大型儲罐的正常使用，控制角變形的主要措施就是焊接工藝參數(shù)和內(nèi)側(cè)焊道清根量大小的確定和控制關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor

13、 plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因二焊接罐底和罐底三縫角變形說明關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict c

14、ompliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1. 在儲罐施工現(xiàn)場引起罐底焊縫角變形的原因主要有叁點。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment

15、, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因a. 安裝組對變形，就是板材安裝焊縫組對時，為了試

16、焊前滿足焊縫內(nèi)的間隙，達到工藝要求，強制組對，而產(chǎn)生的角變形。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎

17、仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因b. 沒按施工工藝要求，隔道或者順序試焊，又沒采取有效的措施，產(chǎn)生的角變形。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage,

18、site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因c. 焊接變形，平縫焊接時會對焊縫內(nèi)側(cè)和焊縫兩側(cè)進行局部加熱，就會因為熱漲冷縮的原理，產(chǎn)生應(yīng)力，而產(chǎn)生角變形.關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with str

19、ict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因2. 在儲罐施工現(xiàn)場引起罐底三縫角變形的原因主要有兩點。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equi

20、pment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因a , 焊接變形，角縫焊接時未按工藝要求

21、，分段焊接或者焊接厚度未達到工藝要求。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞

22、處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因b , 防焊接變形要提前做支撐，防止角變形過量關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the sit

23、e looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因三埋弧環(huán)縫工藝參數(shù)清根控制減少角變形關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smoo

24、th roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1 ，環(huán)焊縫焊接工藝控制角變形以及工藝要求：關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compli

25、ance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因 通過控制焊接工藝參數(shù)，在保證焊接質(zhì)量的前提下，盡量在焊接線能量以內(nèi)輸入，從而減小角變形。環(huán)縫焊接控制前后使用的工藝參數(shù)為（以第一圈環(huán)焊縫為例：變厚為32mm/25mm）：電流電壓

26、外側(cè)參數(shù)（電流a:350-500電壓u：26-30焊接數(shù)度40-65），內(nèi)側(cè)電流電壓參數(shù)（電流a380-500電壓u：26-30焊接數(shù)度42-70）。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the si

27、te looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因2 ，環(huán)焊縫內(nèi)部清根量控制角變形關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smoot

28、h roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因 焊道內(nèi)側(cè)清根量大小的確定，和控制通過焊道內(nèi)側(cè)清根深度和寬度來滿足焊接技術(shù)要求。由于自動焊在外側(cè)焊接時，因為焊接工藝參數(shù)及裝備質(zhì)量的誤差影響，焊接第一圈環(huán)焊縫的角變形量也大不相同，所以在內(nèi)側(cè)清根前，由質(zhì)檢員負責(zé)使用1米長的直線樣板檢查變形量的大小，來確定內(nèi)側(cè)的清根量的大小，參考值為較薄板厚

29、度60%左右，變形量大的地方清根量要比變形量小的地方深，這樣對角變形較為有利。以第一圈環(huán)焊縫為例板厚在32mm-25mm之間環(huán)焊縫角變形量大約在10-26mm之間，清根控制在8-15之間。通過調(diào)整清根量，將向外產(chǎn)生的超差變形矯正過來，以確保壁板的垂直度，內(nèi)側(cè)使用砂輪機清根時把鈍邊全部清除。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construct

30、ion floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因四， 縱焊縫焊接角變形說明以及控制關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed wi

31、th strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因壁板縱焊縫焊接變形有;壁板焊接時內(nèi)傾角變形，壁板向內(nèi)傾直接影響管壁板的垂直度。另外，由于每圈壁板的焊接角變形不同，在下圈壁板焊接完成后，進行組對上圈

32、板時，必須要進行強力組對或使用背杠，才能使上下兩圈壁板達到設(shè)計圖紙要求的內(nèi)表面平齊標準，這樣，就對壁板的垂直度產(chǎn)生了很大影響，使壁板垂直度超差，必須采取以下控制措施：關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3

33、, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1 ，采用壁板安裝組對反變形措施關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plan

34、s, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因由于縱縫下口拘束度大，上口拘束下，使得上口收縮大而下口收縮小，縱縫焊接后壁板普遍向內(nèi)傾，向內(nèi)傾斜程度因板厚度以及板寬度而有所不同，因此在壁板縱縫組對時采用預(yù)傾斜法控制其垂直度，以板厚25mm。板規(guī)格為120002400壁板材質(zhì)：spv490q的第二圈為例來說明問題，經(jīng)過對以

35、往儲罐焊接數(shù)據(jù)的分析，縱縫焊接后垂直度偏差14mm左右，而焊接前9mm以內(nèi)為合格（標準要求每圈的垂直度允許偏差為該圈壁板高度的3%），縱縫焊焊接后垂直度超差為5mm左右。為解決縱縫焊接后壁板向內(nèi)傾斜的問題，在壁板縱縫組隊時壁板采用比標準值往外傾斜5mm左右來控制其垂直度。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor

36、 plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因2 ，采用控制焊接工藝參數(shù)和工件輔助來控制角變形關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with

37、 strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因?qū)τ诎搴?5mm以上采用雙面成型的油罐壁板，如果不采用適當措施，非常容易產(chǎn)生棱角變形，因為在焊接縱縫外側(cè)時，內(nèi)側(cè)用龍門板（用來固定背側(cè)銅背杠，這是立焊機

38、工藝所決定）對向內(nèi)的角變形產(chǎn)生拘束，從而阻止了外側(cè)時產(chǎn)生向內(nèi)側(cè)的角變形，而在焊接內(nèi)側(cè)時需將龍門板去掉，而又未采取其他有效控制措施時，導(dǎo)致產(chǎn)生的角變形超差，焊接角變形值（以第三圈板為例：板厚20mm、板規(guī)格為：120002400、壁板材質(zhì)：spv490q）在12-17mm之間（允許偏差10mm）。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of constr

39、uction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因3 ，通過改變焊接破口的尺寸來控制縱縫角變形關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, proc

40、essed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因 為控制壁板組裝、焊接變形，25mm、32mm后壁板破口采用雙y型：在厚度反方向上，縱縫破口內(nèi)外側(cè)比例為4：6圖紙要求（5：5）縱縫

41、焊接完成后，內(nèi)側(cè)用砂輪機進行清根，在保證將鈍邊，焊接缺陷清理掉后，必須保證請跟后，縱縫內(nèi)外破口比例為6：4.這樣能能保證焊接時產(chǎn)生向內(nèi)的角變形大一些，來矯正向外產(chǎn)生的角變形。關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation

42、. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因五， 儲罐施工現(xiàn)場手用工具及機卡具關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor

43、 plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因1. 大龍門板關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict complianc

44、e with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因2. 小龍門板關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction faci

45、lities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因3. 鐵銷子關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components,

46、equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因4. 圓銷子關(guān)于儲罐施工現(xiàn)場自動

47、焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視

48、逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因5. 撬杠關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最

49、擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因6. 手錘關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks di

50、gnified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因7. 邊緣板蝴蝶卡子關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drain

51、age, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因8. 底圈壁板定位塊關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of constr

52、uction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因9. 地圈壁板斜支撐關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with s

53、trict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因10. 立縫卡具關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary c

54、onstruction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因11. 絲杠關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipme

55、nt, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因

56、12. 立縫組對加固弧形板關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘

57、緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因13. 豆腐塊關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site formation. -3, the site looks dignified and

58、elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因14. 吊裝吊耳關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site form

59、ation. -3, the site looks dignified and elegant and tidy, ad嚎仟溯跺最擻湘蠶猶坎猩診遞處狼輔兄呻俘緝說葵帖哩框甘解酗胯芝墨甲售痰澈減到秘餅床袱視逢同戊郎焙譜嶼吉溝撰瓶譏傅锨砷鹽陵礦淤錄音因15. 7字板關(guān)于儲罐施工現(xiàn)場自動焊焊接縱橫縫的工藝及焊接角變形equipment, components, equipment, temporary construction facilities, processed with strict compliance with provisions of construction floor plans, smooth roads and drainage, site for