rrME四桁架双主梁门式焊接工艺过程卡片

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河南省大方重型机器有限公司焊接组件工艺过程卡片产品型号me型零件图号共5页产品名称双梁(四桁架)门式起重机零件名称台 车 架第1页工序号工序名称工 序 内 容加工部门设备及工艺装备辅助材料工时定额min一、材质台车架按设计选用的q235b各种厚度的钢板，均应需符合gb700-88碳素结构钢的规定。二、焊材选用q235b钢板手工焊采用e4301、e4303酸性焊条，埋弧焊采用焊剂焊丝为hj430-h08a。焊条使用前需经烘干。三、焊缝之外的各

12、表面，不得打火引弧。四、台车架备料、焊接工艺过程：1.备料：.台车架上、下盖板、立板（含铰轴孔内外加强板）、弯板、筋板所用的各种规格的钢板需用钢丝轮除锈，使钢板表面无油脂和污垢，无附着不牢的氧化皮、铁锈等附着物。描图.板材需经矫平，对厚度大于6的钢板，需用1平尺测量，波浪度应小于3。.上、下盖板下料时，先划线，长度方向各增加2的焊接收缩量。上、下盖板划线时，先描校划出上盖板纵向中心线、对称中心线及长、宽边界线。用半自动切割机下料，修磨切断面，要求平整，切断面应和板材平面垂直。下盖板两端划出切割位置线，切割出车轮安装位置。底图号两立板下料，长度方向应增加1.5焊接收缩量。划线时应以上边为基准，划

13、出其余各线，要求两边弯板位置水平切割线，应和上边缘平行，且两线应在一个水平面上。弯板两条垂直线装订号划线应用90。直角尺，检查在端部应大于90。，间隙为1，并划出立板对称中心线及各筋板焊编制（日期）校对(日期)审核(日期)会签(日期)日期标记处数更改文字号签字日期标记处数更改文字号签字日期河南省大方重型机器有限公司焊接组件工艺过程卡片产品型号me型零件图号共5页产品名称双梁（四桁架）门式起重机零件名称台车架第2页工序号工序名称工 序 内 容加工部门设备及工艺装备辅助材料工时定额min接位置线。按划线火焰切割，修磨切割断面，切割面应和立板平面垂直。止口板（键板）下料采用火焰切割，宽度留刨削余量，

14、后点焊为一体，按设计尺寸在刨床上刨至配合尺寸。内部两长筋板用剪板机下料，要求短边和相邻两边垂直，并切割出槽形缺口。上部短边两端切出2045。斜角。端板用剪板机下料，并划出缺口切割线，按线切割，清除割渣、磨平切割面、矫平。在立板上铰轴孔两侧的内外加强板计4块，统一按设计尺寸划线后，用半自动火焰切割机切割下料，割后清渣，周边用手工气割割出坡口，用磨光机修磨坡口致光整，待研配焊接。减速器固定销轴的支板用30厚钢板切割成并磨平切割面，且根据销子直径钻孔。描图夹轨器座板下料先划线，用火焰切割机切割，磨平切割面并矫平。按设计尺寸划出宽度对称中心线及各装配孔中心线，打上洋冲眼在摇臂钻床上钻孔成。描校弯板采用

15、划线、火焰切割磨平切断面，再划出压弯线，在专用压力机上压弯成。两边用直角尺检查，立边上部和直角尺间隙为1，保证焊接后弯板两面形成90。划出两面钻孔位置底图号中心线，打上洋冲眼，在摇臂钻床上钻出。各外露筋板用剪板机下料，筋板各角切剪切出1045。倒角。电机座板架用剪板机下料。装订号2.焊接工艺过程：编制（日期）校对(日期)审核(日期)会签(日期)日期标记处数更改文字号签字日期标记处数更改文字号签字日期河南省大方重型机器有限公司焊接组件工艺过程卡片产品型号me型零件图号共5页产品名称双梁（四桁架）门式起重机零件名称台车架第3页工序号工序名称工 序 内 容加工部门设备及工艺装备辅助材料工时定额min

16、.将上盖板吊放在平台上，复检原已划出的纵向中心线、对称中心线，无误后划出两立板位置线和两内筋板位置线（两内筋板位置线之间距应比设计尺寸增加1的焊接收缩量）。将两内筋板分别立于划线处，用直角尺检测应使内筋板和上盖板两面垂直，之后点焊定位。并将内筋板两侧的角焊缝按相反的焊接方向焊牢，清渣并检查焊缝质量，焊缝应无裂纹、孔穴、固体夹杂、未溶合、未焊透、漏焊等缺陷。.两立板焊接：将两立板分别吊起，立放于上盖板立板位置线上，使原已划出的立板垂直中心线对准上盖板的对称中心线，在上部和内筋板的结合处用拉筋临时点焊定位，用直角尺检测，立板应垂直于上盖板。之后将立板和上盖板及内筋板点焊定位。描图将台车架形架吊起，

17、立板面向上，放于平台上，从对称中心线向两侧先焊牢上盖板和立板角焊缝，在内筋板处，角焊缝应连续。后从上向下焊牢内筋板和立板的一侧焊缝，之后，反方描校向焊牢内筋板和立板另一边角焊缝，并从对称中心线向两侧焊牢在上面的上盖板和立板角焊缝。将台车架形架吊起翻转，立板向上落于平台上，按上述焊接顺序焊牢上盖板和立板、内底图号筋板和立板的各条角焊缝。.立板上铰轴孔内加强板焊接：装订号将备好的内加强板坡口在下放入设计位置研配，修磨周边及坡口，使内加强板平面和立板编制（日期）校对(日期)审核(日期)会签(日期)日期标记处数更改文字号签字日期标记处数更改文字号签字日期河南省大方重型机器有限公司焊接组件工艺过程卡片产

18、品型号me型零件图号共5页产品名称双梁（四桁架）门式起重机零件名称台车架第4页工序号工序名称工 序 内 容加工部门设备及工艺装备辅助材料工时定额min相应部位平面贴合，点焊定位。之后用手工焊先焊牢内加强板和上盖板的角焊缝，再从上向下焊牢内筋板和内加强板的两端角焊缝。用同样方法，焊牢另一侧内加强板。.焊接立板上各条加强筋板、铰轴孔外加强板：在立板上面划出各筋板位置，并放上各筋板，复核无误后，点焊定位，并按对称反向施焊的顺序，焊牢各条角焊缝。之后，将台车架吊起翻转180。，焊接另一面筋板角焊缝。将备好的外加强板坡口向内，放入立板外的设计位置，修磨周边及坡口，使外加强板平面和立板相应部位平面贴合，点

19、焊定位，按内加强板的焊接方法焊牢。之后焊接另一侧外加强板。.焊接下盖板：在下盖板上划出对称中心线和立板位置线。将台车架吊放在下盖板上，立板对称中心线应描图和下盖板对称中心线对准，用短直角尺检测，立板应垂直于下盖板。之后，点焊定位，并从对称中心线向两侧依次焊牢两立板下部的各角焊缝。描校.焊接两端端板：将两端板置于端部，调整使各面吻合，点焊定位并焊牢各条焊缝。底图号.弯板与台车架焊接：将台车架吊放在平台上，使上盖板在下面。用水平仪检测调整弯板焊接处立板在同一水平装订号面上。编制（日期）校对(日期)审核(日期)会签(日期)日期标记处数更改文字号签字日期标记处数更改文字号签字日期河南省大方重型机器有限公司焊接组件工艺过程卡片产品型号me型零件图号共5页产品名称双梁（四桁架）门式起重机零件名称台车架第5页工序号工序名称工 序 内 容加工部门设备及工艺装备辅助材料工时定额min用定位胎将一端两块弯板按设计间隔尺寸连接为一体。用直角尺测量两个弯板平面，