di垂直气电焊专用焊接工艺.doc

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1、warm Franco-Prussian peace and harmony and the new year greeting cards, and the publicity photo gallery and the 2015 law and usage, law-abiding Holler, promotional materials such as calendars, market day, Festival Community law, legal in rural activities. Meanwhile, the County 9 townships (towns) Le

2、gal Office 85 villages, 4 community two committees cadre carried out against the peoples mediation law and standardized legal documents, the rural land contracting law and the rule of law training tour of the Marriage Act and other laws and regulations. Meanwhile, the party members of the party scho

3、ol teaching resources and annually to the village (community) the favorable opportunity for the County Clerk training 23,000 rural pave the way for the law and the 1972 legal advocacy Center legal publicity and education, increase their use of legal means to manage rural services, the ability to pre

4、vent and deal with conflicts and disputes. (Assessment points 3 points, since assessment 3 points) 13. increased on farmers workers Franco-Prussian education efforts, regularly in-depth to farmers workers concentrated live to, and work places and the main activities places carried out regular of rul

5、e of law education; insisted who competent who Franco-Prussian, and who labor who Franco-Prussian of work principles, State-owned enterprises, labor units established has farmers workers continues to Franco-Prussian education system, regularly or not regularly organization carried out education trai

6、ning. Franco-Prussian Union-related functions in the County Fairgrounds, station distribution center for migrants, legal service through the establishment of enquiry points and propaganda materials, sent out vans, station electronic display rolling, installation of car popularization anime and other

7、 forms of floating on the rule of law publicity and education activities. Positive return during the legal education of migrant workers, improve migrant workers law concept and awareness of labor rights according to law. For five years, and floating population of migrant workers, the rule of law pub

8、licity and education activities reached more than 600 times, issue the labor contract law, the census law, literature, more than 10,000 copies. (Assessment points 3 points, since assessment 3 points) three, and to innovation seeking development, further deepening rule of law publicity education of w

9、ay method, solid advance 65 Franco-Prussian target task of completed (assessment points 30 points, since assessment 30 points) 1. to legal six into activities for carrier, to I County 193 support rule of law publicity literary team for relies on, take masses joy Le see of national dance, and sketch,

10、 publicity way, active advance area within rule of law publicity education activities, County minority masses, and Religious clergy and religious peoples legal awareness is increased further. (Check with 3 points, scoring 3 points) 2. promote legal six kinds of entering activities, and vigorously ex

11、pand law six kinds of entering connotation and extension activities, establish a legal six kinds of entering model typical, typical leading and exemplary role in promoting the rule of law publicity and education work in our County, the County set up legal six kinds of entering model typical of 11. (

12、Check with 3 points, self-evaluation-3) 3. carrying out who is in charge of who Franco-Prussian, who law enforcement who legal principle, enactment of the XX County implement who is in charge of who垂直气电自动焊专用焊接工艺 共 7 页 第 7 页 JIANGDONG SHIPYARDMARINE TECHNOLOGY STOCK CO. LTD江东船舶技术股份有限公司FAX/TEL: 0086-5

13、53-5727420/0086-553-5727606 E-MAIL JDJDSHIPYARD.COM1 / 6WEIGHT重量PAGE 页数船号SCALE 比例ECHO SOUNDER WELDING PROCEDUREDATE 日期REVISION OR APPROVAL BASISQUANTITYEDITION MARKREVISERAPPROVAL图 号: 57000t散货船多 用 途 船生产设计 WORKING DESIGNDATE底 图 总 号旧 底 图 总 号SC4241-101-01JSVERIFIED 会签DESIGNED 编制CHECKED 校对APPROVED 审核CHE

14、CKED OF STA. 标检垂直气电自动焊专用焊接工艺CLASS 船级社: Germanischer LloydBUILDER:船 厂:Jiangdong S/Y 江东船厂1 概述1.1 本工艺主要针对大合拢垂直接头采用垂直气电焊而编制,规定了CO2气电垂直自动焊的焊接前准备、人员、工艺要求、工艺过程及检验,焊接施工时应严格按此工艺执行。1.2 本垂直气电自动焊工艺适用于板厚1025mm,倾斜度在7590的向上立对接接缝的焊接,特别是对我厂目前的高强度钢板状况焊接接头间隙和坡口角度不得有超出此范围现象,严格按此工艺进行。1.3 垂直气电自动焊接采用1.6mm药芯焊丝,CO2气体做保护,并对焊

15、接熔池强制一次成形的方法来完成,焊缝的前后面分别用水冷铜滑块和带有钢衬套的梯形凹槽衬垫,以保持熔池稳定和成形良好。见图1图1 焊接示意图2坡口型式和间隙:垂直气电自动焊接缝均采用V型坡口,其角度根据板厚而定,具体要求见图2、表1。图2表1 坡口型式板厚t(mm)坡口角度板边差(mm)间隙p(mm)标准值允许范围标准值允许范围标准值允许范围1018405 00+1.506+4.0-2.0192535+2.0-2.03 焊接材料 4.1 焊丝采用垂直气电焊专用焊丝:DWS-43G 4.2 CO2气体纯度99.5%。 4.3 衬垫采用JN-1001垂直气电焊专用衬垫。4 焊前准备4.1 焊丝应包装完

16、好,随用随拆,选用的衬垫应随用随拆,如拆封后未用完,储放时间过久,必须经200250培烘后才能使用。4.2 垂直接缝装配时,应在坡口背面构架处装上“”形马,“”形马之间的距离值为300400mm。每只衬垫至少有两只“”形马,马的尺寸如图3。图3 形马尺寸4.3 无余量板材装配后按坡口标准修正,有余量板材装配后现场切割,但切割前要求纵向纵骨接缝暂不焊接,切割后坡口尺寸必须符合公差要求。如遇相邻两板厚度不等时,应将高出不平部分批斜磨平,其斜度尺寸为6080mm。4.4 为保证随机头一起上升的铜滑块顺利畅通,板边差应控制在第2条范围以内,坡口边缘两侧50mm范围内应用风动砂轮清除气割毛刺、马脚、金属

17、飞溅物以及纵向接缝的焊缝余高,确保正面水冷滑块顺利滑移和反面衬垫贴紧,还应清除铁锈、水分、油污等,并保证清洁和干燥,以免影响焊接质量。4.5 安装衬垫时必须保证成形槽与坡口中心一致,衬垫之间推紧无间隙,衬垫紧贴钢板背面。 4.6焊接设备安装要求4.6.1 垂直气电自动焊设备由电源、送丝机构、焊接机头、水冷机头组成,垂直自动焊采用平特性直流反极电源。4.6.2将垂直自动焊设备吊在甲板上合适的位置,并装好气管、水管、控制线及电缆线等,长度应满足整条长接缝的焊接需要。4.6.3利用升降装置将导轨安置在距接缝200mm处(指钢板边线)并要保证导轨之间的可靠连接。安装导轨前必须清除钢板表面的灰尘、垃圾和

18、污物。4.6.4将垂直自动焊机安放在焊道的起始点后,用离合器锁紧待用,并要检查和清除焊机道路中的障碍物。4.6.5将CO2送丝机构的所需焊丝消耗量带上吊架升降装置,并使CO2送丝机构固定在合适位置,同时准备好防风帘使用。4.6.6 检查并安装成形滑块至焊缝中心位置,要求滑块、通气口清洁,成形槽光滑,滑块顶紧适中。选用的滑块焊缝成形宽度需与工件厚度相匹配。见图表2。表2 滑块尺寸板厚121416202225滑块尺寸24、2828、324.6.7 将送丝软管接至焊接机头SG2Z装置的弯管上,检查导电咀,并将弯管固定在装置上,送丝后要确保一定的焊丝长度和角度。4.6.8 如需焊丝摆动,可将摆幅与两端

19、停留时间在焊前预先调整好。4.7 焊前应首先检查全套设备的运行状况,若焊接时中途熄弧,必须对接头进行彻底修补。4.8 参加气电垂直自动焊接的焊工,必须经过专门培训和考试合格,经有关船级社认可,发给合格证书的CO2焊工持证上岗。5 工艺要求5.1 焊接规范参数如下:表3 焊接规范参数板厚(mm)电流(A)电压(V)速度(cm/min)1214290350293510131620360380323481021253335675.2 电弧电压的选用值须与焊接电流相匹配,在其它规范参数不变的情况下,电弧电压增大,焊缝宽度增加,过高的电弧电压会出现焊缝咬边。但过低的电弧电压会使电弧燃烧不稳定。因此在保证

20、焊接过程稳定和焊缝成型良好的情况下,应尽量降低电弧电压对防止气孔和减少合金元素的烧损都是有利的。5.3 焊接速度合适的焊接速度视焊丝熔化速度而定。焊接速度过快,滑块内金属液面逐渐降落,焊丝伸出长度增加,易使焊缝产生气孔。焊接速度过慢,电弧燃烧不稳定。甚至会迫使焊接过程中断。 5.4 焊丝摆幅采用摆动器焊接时,电弧稳定,飞溅小,焊缝截面上温度均匀,熔池金属结晶状态得到改善,晶粒度细,有利于得到致密焊缝。垂直气电焊焊枪可作适当的摆动。板厚为9-14mm时,不需摆动;板厚为16-20mm时,可采用摆动,但厚板(大于20mm)焊接时必须摆动,摆动幅度及焊丝前后停留时间根据电弧位置而定。 5.5 焊丝伸

21、出长度:一般要求伸出长度为3035mm。 5.6 气体流量:一般外场作业条件下的CO2气体流量为2530L/min。6 工艺过程6.1 接通水、电、气,将SG-2Z焊接装置开至焊缝始端。6.2 将电弧电压电位器、焊接电流电位器、焊丝伸出长度控制电位器均调至预定位置后,按起动按钮,开始焊接。若厚板要摆动焊接,则在熔池建立后,再按焊丝摆动按钮。6.3 在焊接过程中,根据实际坡口和间隙随时观察焊丝对中和焊缝热量分布情况,修正焊接规范。随时通过机械装置将电弧调整到正确位置,同时还要用绝缘棒随时除掉铜滑块保护气体盒里的飞溅物。6.4 焊接停止时,按停止按钮和摆动停止按钮,使小车和焊丝送丝停止,然后电弧熄

22、灭。待熔池凝固后,放开铜滑块并去除上面的飞溅物,把焊炬从支架上取下。7 检验及修补7.1 焊缝表面应均匀、致密,无裂纹、咬边、气孔等缺陷,焊缝应平滑地向母材过渡,焊缝外形尺寸要求见表4。 表4 焊缝外形尺寸板厚(mm)正面焊缝宽 度正面焊缝高 度背面焊缝宽 度背面焊缝高 度121624282101821625283214227.2 中间起弧、熄弧及接头处均应用气刨刨清后修补,补焊长度约100mm左右。尤其背面焊穿处,用气刨刨清缺陷后,再用手工电弧焊或CO2气体保护焊填满缺陷空隙,重新起弧焊接。7.3 对焊缝中各种缺陷,如表面粗糙、满溢、咬边、气孔、未熔合、宽度高度不足、不成形等缺陷,用气刨刨清

23、缺陷后,再用手工电弧焊或CO2气体保护焊修补。7.4 检验及验收按CSQS及JSQS执行。Franco-Prussian, who law enforcement who legal literacy of the application of the principles at work (law Pu (2013), 6th) issued the single . Is the backbone area the rule of law publicity and education. (Assessment-2-, self-evaluation-2) 7. 65 Franco-Pru

24、ssian work yilai, I County active using 3.8 womens day, and March fully rule publicity months and 3.15 consumers interests protection day, and five or four youth day, and 6.24 international drug day, and 6.25 land day for opportunity, combined 12.4 national Constitution Day cum national rule of law

25、publicity day, major activities, and important node, using fair day carried out forms of rule of law publicity topic activities, on women interests guarantees method, and marriage method, and land method, and water And the law on notary, the peoples mediation law and other professional law legal adv

26、ocacy work. In five years, distribute all kinds of rule of law information materials (126,700), accepts all kinds of legal advice 18,000 visitors, posting signs more than 4,000 articles, achieve legal literacy does not remain dead, keep. (Check with 3 points, self-evaluation-3) 8. solid advance rule

27、 of law culture construction activities, 65 Franco-Prussian work yilai, in County carried out has Chinese soul? flying dream rule of law reading activities; September 2014, rule of law culture construction model base in mill black town middle school tone established, Franco-Prussian do, and Judicial

28、 Council gift youth legal reading more than 1000 more than this; 2015 television opened rule of law XX column, total making broadcast 4 period, 16 article rule of law news program. And give full play to 193 of the county supported the rule of law role of literary propaganda through popular and acces

29、sible essays, Allegro, dancing a variety of theatrical interpretation of laws and regulations promote the rule of law, they performed as the couple mahjong and the conciliation officers patrol in mind, collection and other programmes are well received by the masses. (Check with 3 points, self-evalua

30、tion-3) 9. increase grass-roots mass culture of rule of law activities of the guidance, support, and training grass-roots cultural awareness cultural backbone of rule of law, the County year-round theatrical performance teams a total of 31 total support rule of law, mass culture of rule of law activ

31、ities and healthy development. (Evaluation of 3 minutes, scoring 3 points) 10. active use of the Web site, television, mobile phones and other new media law publicity and education activities carried out. In June 2013, XX law popularization network officially opened, its built and opened, XX is the

32、rule of law propaganda education implementation of networked communication, actively develop Franco-Prussian governance according to law, innovation is a new initiative of the Franco-German forms of governance according to law; departments of industry and commerce, taxation, society set up the rule of law promotion portal

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