rr四桁架雙主梁門分式焊接工藝過程卡片

1、pushing ahead, east, north, west development, facilitating shanty, complete xincheng west road, stability and reconstruction of the street, star ding garden built century garden district, subject public housing construction, heating the gas expansion accelerated implementation, jing rui river and br

2、idge style line solid shaft, further expanded the town development. beautiful country adhere to the advance and typical for a group to lead. according to ecological lay based, and industry increased income, and live upgrade civilization, and culture rich connotation of thought, caught built beautifu

3、l village, and whole village advance, and easily relocation, and five modified three built, project near 30 a; depth into ecological, and industry, and culture, and tourism, elements, high standards caught party original city liu, and jade are xia ao, model village, in province city set has benchmar

4、k. four is equal benefits to promote sharing, coordinated development of various social undertakings. in the case of rigid spending slowing revenue growth, increase, financial 75% to the peoples livelihood, the masses have more access in the sharing. cuoban something good and benefit. adhere to the

5、affordable, best, carefully cuoban village oil, water and heat, cultural, city and county columns practical, developments benefit families, bring more welfare to the masses. development of social convenience. acceptance of balanced development of compulsory education through the national assessment,

6、 the county vocational education center was named top school of vocational education in china, the third batch of national reform and development model through provincial . five is to deepen reform and innovation to break bottlenecks and endogenous development of effective fire. as an engine of dyna

7、mism, adding reform key to adopting reform measures stress energy and break bottlenecks and promoting development. pay close attention to the key areas of reform. conscientiously implement the provincial deployment and cancel, adjustment, to undertake the administrative approval items according to r

8、egulation 347 to further improve administrative efficiency continuing deepening reform for poverty alleviation, speeding up rural land right registration certification pilot project, encouraging the orderly transfer of land management, utilize the land resources, in order to promote scale management

9、 laid the foundation. actively cultivate the market. firmly establish a market-oriented, nurturing family farms, industrial users, professional cooperation organization new market management main body 456, effectively improve the industry, intensive and marketization of encouraging support social ca

10、pital into the small micro-credit, urban development, culture and tourism, public services and other areas, easing development shortfall. to promote mass innovation. to support the rural sector to use new thinking and new ideas, creative work incentives such as actively promoting financial intermedi

11、ation, bring added 159 in non public enterprises, individually-1540, created a河南省大方重型機器有限公司焊接組件工藝過程卡片產(chǎn)品型號me型零件圖號共5頁產(chǎn)品名稱雙梁(四桁架)門式起重機零件名稱臺 車 架第1頁工序號工序名稱工 序 內(nèi) 容加工部門設(shè)備及工藝裝備輔助材料工時定額min一、材質(zhì)臺車架按設(shè)計選用的q235b各種厚度的鋼板，均應(yīng)需符合gb700-88碳素結(jié)構(gòu)鋼的規(guī)定。二、焊材選用q235b鋼板手工焊采用e4301、e4303酸性焊條，埋弧焊采用焊劑焊絲為hj430-h08a。焊條使用前需經(jīng)烘干。三、焊縫之外的各

12、表面，不得打火引弧。四、臺車架備料、焊接工藝過程：1.備料：.臺車架上、下蓋板、立板（含鉸軸孔內(nèi)外加強板）、彎板、筋板所用的各種規(guī)格的鋼板需用鋼絲輪除銹，使鋼板表面無油脂和污垢，無附著不牢的氧化皮、鐵銹等附著物。描圖.板材需經(jīng)矯平，對厚度大于6的鋼板，需用1平尺測量，波浪度應(yīng)小于3。.上、下蓋板下料時，先劃線，長度方向各增加2的焊接收縮量。上、下蓋板劃線時，先描校劃出上蓋板縱向中心線、對稱中心線及長、寬邊界線。用半自動切割機下料，修磨切斷面，要求平整，切斷面應(yīng)和板材平面垂直。下蓋板兩端劃出切割位置線，切割出車輪安裝位置。底圖號兩立板下料，長度方向應(yīng)增加1.5焊接收縮量。劃線時應(yīng)以上邊為基準(zhǔn)，劃

13、出其余各線，要求兩邊彎板位置水平切割線，應(yīng)和上邊緣平行，且兩線應(yīng)在一個水平面上。彎板兩條垂直線裝訂號劃線應(yīng)用90。直角尺，檢查在端部應(yīng)大于90。，間隙為1，并劃出立板對稱中心線及各筋板焊編制（日期）校對(日期)審核(日期)會簽(日期)日期標(biāo)記處數(shù)更改文字號簽字日期標(biāo)記處數(shù)更改文字號簽字日期河南省大方重型機器有限公司焊接組件工藝過程卡片產(chǎn)品型號me型零件圖號共5頁產(chǎn)品名稱雙梁（四桁架）門式起重機零件名稱臺車架第2頁工序號工序名稱工 序 內(nèi) 容加工部門設(shè)備及工藝裝備輔助材料工時定額min接位置線。按劃線火焰切割，修磨切割斷面，切割面應(yīng)和立板平面垂直。止口板（鍵板）下料采用火焰切割，寬度留刨削余量，

14、后點焊為一體，按設(shè)計尺寸在刨床上刨至配合尺寸。內(nèi)部兩長筋板用剪板機下料，要求短邊和相鄰兩邊垂直，并切割出槽形缺口。上部短邊兩端切出2045。斜角。端板用剪板機下料，并劃出缺口切割線，按線切割，清除割渣、磨平切割面、矯平。在立板上鉸軸孔兩側(cè)的內(nèi)外加強板計4塊，統(tǒng)一按設(shè)計尺寸劃線后，用半自動火焰切割機切割下料，割后清渣，周邊用手工氣割割出坡口，用磨光機修磨坡口致光整，待研配焊接。減速器固定銷軸的支板用30厚鋼板切割成并磨平切割面，且根據(jù)銷子直徑鉆孔。描圖夾軌器座板下料先劃線，用火焰切割機切割，磨平切割面并矯平。按設(shè)計尺寸劃出寬度對稱中心線及各裝配孔中心線，打上洋沖眼在搖臂鉆床上鉆孔成。描校彎板采用

15、劃線、火焰切割磨平切斷面，再劃出壓彎線，在專用壓力機上壓彎成。兩邊用直角尺檢查，立邊上部和直角尺間隙為1，保證焊接后彎板兩面形成90。劃出兩面鉆孔位置底圖號中心線，打上洋沖眼，在搖臂鉆床上鉆出。各外露筋板用剪板機下料，筋板各角切剪切出1045。倒角。電機座板架用剪板機下料。裝訂號2.焊接工藝過程：編制（日期）校對(日期)審核(日期)會簽(日期)日期標(biāo)記處數(shù)更改文字號簽字日期標(biāo)記處數(shù)更改文字號簽字日期河南省大方重型機器有限公司焊接組件工藝過程卡片產(chǎn)品型號me型零件圖號共5頁產(chǎn)品名稱雙梁（四桁架）門式起重機零件名稱臺車架第3頁工序號工序名稱工 序 內(nèi) 容加工部門設(shè)備及工藝裝備輔助材料工時定額min

16、.將上蓋板吊放在平臺上，復(fù)檢原已劃出的縱向中心線、對稱中心線，無誤后劃出兩立板位置線和兩內(nèi)筋板位置線（兩內(nèi)筋板位置線之間距應(yīng)比設(shè)計尺寸增加1的焊接收縮量）。將兩內(nèi)筋板分別立于劃線處，用直角尺檢測應(yīng)使內(nèi)筋板和上蓋板兩面垂直，之后點焊定位。并將內(nèi)筋板兩側(cè)的角焊縫按相反的焊接方向焊牢，清渣并檢查焊縫質(zhì)量，焊縫應(yīng)無裂紋、孔穴、固體夾雜、未溶合、未焊透、漏焊等缺陷。.兩立板焊接：將兩立板分別吊起，立放于上蓋板立板位置線上，使原已劃出的立板垂直中心線對準(zhǔn)上蓋板的對稱中心線，在上部和內(nèi)筋板的結(jié)合處用拉筋臨時點焊定位，用直角尺檢測，立板應(yīng)垂直于上蓋板。之后將立板和上蓋板及內(nèi)筋板點焊定位。描圖將臺車架形架吊起，

17、立板面向上，放于平臺上，從對稱中心線向兩側(cè)先焊牢上蓋板和立板角焊縫，在內(nèi)筋板處，角焊縫應(yīng)連續(xù)。后從上向下焊牢內(nèi)筋板和立板的一側(cè)焊縫，之后，反方描校向焊牢內(nèi)筋板和立板另一邊角焊縫，并從對稱中心線向兩側(cè)焊牢在上面的上蓋板和立板角焊縫。將臺車架形架吊起翻轉(zhuǎn)，立板向上落于平臺上，按上述焊接順序焊牢上蓋板和立板、內(nèi)底圖號筋板和立板的各條角焊縫。.立板上鉸軸孔內(nèi)加強板焊接：裝訂號將備好的內(nèi)加強板坡口在下放入設(shè)計位置研配，修磨周邊及坡口，使內(nèi)加強板平面和立板編制（日期）校對(日期)審核(日期)會簽(日期)日期標(biāo)記處數(shù)更改文字號簽字日期標(biāo)記處數(shù)更改文字號簽字日期河南省大方重型機器有限公司焊接組件工藝過程卡片產(chǎn)

18、品型號me型零件圖號共5頁產(chǎn)品名稱雙梁（四桁架）門式起重機零件名稱臺車架第4頁工序號工序名稱工 序 內(nèi) 容加工部門設(shè)備及工藝裝備輔助材料工時定額min相應(yīng)部位平面貼合，點焊定位。之后用手工焊先焊牢內(nèi)加強板和上蓋板的角焊縫，再從上向下焊牢內(nèi)筋板和內(nèi)加強板的兩端角焊縫。用同樣方法，焊牢另一側(cè)內(nèi)加強板。.焊接立板上各條加強筋板、鉸軸孔外加強板：在立板上面劃出各筋板位置，并放上各筋板，復(fù)核無誤后，點焊定位，并按對稱反向施焊的順序，焊牢各條角焊縫。之后，將臺車架吊起翻轉(zhuǎn)180。，焊接另一面筋板角焊縫。將備好的外加強板坡口向內(nèi)，放入立板外的設(shè)計位置，修磨周邊及坡口，使外加強板平面和立板相應(yīng)部位平面貼合，點

19、焊定位，按內(nèi)加強板的焊接方法焊牢。之后焊接另一側(cè)外加強板。.焊接下蓋板：在下蓋板上劃出對稱中心線和立板位置線。將臺車架吊放在下蓋板上，立板對稱中心線應(yīng)描圖和下蓋板對稱中心線對準(zhǔn)，用短直角尺檢測，立板應(yīng)垂直于下蓋板。之后，點焊定位，并從對稱中心線向兩側(cè)依次焊牢兩立板下部的各角焊縫。描校.焊接兩端端板：將兩端板置于端部，調(diào)整使各面吻合，點焊定位并焊牢各條焊縫。底圖號.彎板與臺車架焊接：將臺車架吊放在平臺上，使上蓋板在下面。用水平儀檢測調(diào)整彎板焊接處立板在同一水平裝訂號面上。編制（日期）校對(日期)審核(日期)會簽(日期)日期標(biāo)記處數(shù)更改文字號簽字日期標(biāo)記處數(shù)更改文字號簽字日期河南省大方重型機器有限公司焊接組件工藝過程卡片產(chǎn)品型號me型零件圖號共5頁產(chǎn)品名稱雙梁（四桁架）門式起重機零件名稱臺車架第5頁工序號工序名稱工 序 內(nèi) 容加工部門設(shè)備及工藝裝備輔助材料工時定額min用定位胎將一端兩塊彎板按設(shè)計間隔尺寸連接為一體。用直角尺測量兩個彎板平面，