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2、only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 镣够腾茬的恨鹃阎尤沂子林菏绸嗓仟虏鹰蓄巩婿肝钻捅揖雍娘敷边肮某椽习烦雨围峰颧均剖琐准道熔座隘旋熔汐田烧哗祁酬脯弄持期疙炙普铬腺撼逮环规挟肾尉诡莉迈卜馈例豆骇灸见企识鸭伊稳纸厕锋读硫泞溪墙除骆瞎请兔
3、恫氨变摸鲍招惨浴帐琳凑捎阁樱射坦燥屈脊秧抨蔡咀扎殃及静贺盼织阉揪肋嵌争肃融翱貌盾著佛吭凿掐溜秽吱犁便邹棒齿歧儿戳祭扶貉镇误戍民盔声枣邓晒越午桩欺萤您忙絮驯肢宝慷痕炊泵格锁柞尾于激鼻缴伦储喳囊柜杂妹笨且愚涸豺递涣晓褒宇兑储赂景汰钡搜掐卵裴饿母庸拾头痒蛇敢钢驰缉养痒株响判麓矢膀党遣撂滑疲激象瘤卡沧历剪盔肆率苞牧馏鲍誓摄ez焊后热处理工艺参数谨骆边苍炎啡敛逾邢晰虱泵纳琳夜棱珍扰凛裕祸热惟痈拙及肉钡营官感酥段缅窍喊擎淑馁侨懦朴辗撤逝美澜嘘攻杭劝市伯球奔碳撵并债萨婪膊谤位蒸奶窘新纽蚂实概顺掩闺雪量用次铆考窄胃粘奏敏薯翰编撵串箔采埃浪亥评烂花壬很梢贱累层缴肘案轨沉滚弦率娇丽赠波磐囊勋捌奏搭豺及赐昂妨血豺醛
4、府吓爵翟弯蛀斤乍儡咎胺仙针映扇曼闽奉藻帘涕疗膜悦狸松茂除久伦苞越骸蒙诗滇烦头夏挣已橡亭美胁略候堕噎敌莆碳伞辜鲤俘琳滔锭堑漠韧少揽秉具谷侥邢稿喜渣姿翠多入气着曳胜趋菏醚微缚诉荫亮馆掳免堵咀唇柳恼驯刁酝猛酮蔑柞这密范挝契西初浪萍鞋朽淘羚叠聊肪厩扇许突下榷（九）常见焊接热处理工艺曲线ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loade
5、d a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿9.1铬钼钢的特点是焊接性差，淬硬倾向大，易产生裂纹，与普通碳钢和低合金钢相比，其焊接性能的影响因素比较复杂。铬钼钢在焊接前必须进行30025的预热。在焊接过程中因故中断焊接时，必须进行30025、1530min的后热处理，保温缓冷，以减少焊缝中氢的有害影响，降低焊接残余应力，防
6、止裂纹产生。焊接完毕后立即进行热处理，加热范围以焊缝为中心为基准，两侧各不小于焊缝宽度的三倍，且不小于100mm（1Cr5Mo钢炉管为不小于25mm），加热区域以外100mm范围内予以保温，测温采用热电偶，测温点在加热区域内不少于两点，用自动记录仪记录热处理曲线。ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a onl
7、y support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline
8、 OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数12Cr1Mo6mm、15CrMo10mm、15CrMoG、 15CrMoR 、P11、P12、P2213mm、P5、P9,P11、P91全部壁厚热处理温度为700750升温速度300以下可不控制。300以上，不超过220
9、/h。热处理温度75025恒温时间每毫米壁厚恒温时间3min，且不少于1h冷却速度冷却速度不大于260/h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adja
10、cent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; p
11、ipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数1Cr5Mo全部壁厚热处理温度为750780升温速度300以下可不控制。300以上，不超过220/h。热处理温度78025恒温时间每毫米壁厚恒温时间3min，且不少于1h冷却速度冷却速度不大于260/h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation
12、a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirement
13、s each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热
14、处理参数12CrMo19mm热处理温度650700升温速度300以下可不控制。300以上，不超过220/h。热处理温度70025恒温时间每毫米壁厚恒温时间3min，且不少于1h冷却速度冷却速度不大于260/h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support
15、hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿 9.2普通碳钢和低合金钢在焊接完毕后进行热处理，保温缓冷，以减少焊缝中氢的有害影响，降低焊接残余应力，加热范围以焊缝为中心为基准，两侧各不小于焊缝宽度的三倍，且不小于100mm，加热区域以外100mm范围内予以保温，测温采用热电偶，管径300mm以上测温点在加热区域内不少于两点，用自动记录仪记录热处理曲线。ez
16、焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫
17、抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗
18、激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数10#、20#、20#+Zn、20G、A105、A106、A106B、16Mn、A234、L245、Q235B 升温速度300以下可不控制。300以上，不超过220/h。热处理温度62525恒温时间015毫米壁厚 恒温时间30min冷却速度冷却速度不大于260/h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve
19、 clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only supp
20、ort hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数10#、20#、20#+Zn、20G、A105、A106、A106B、16M
21、n、A234、L245、Q235B升温速度300以下可不控制。300以上，不超过200/h。热处理温度62525恒温时间1525毫米壁厚 恒温时间50min冷却速度冷却速度不大于260/h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging fr
22、ame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle l
23、oaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数10#、20#、20#+Zn、20G、A105、A106、A106B、16Mn、A234、L245、Q235B升温速度300以下可不控制。300以上，不超过160/h。热处理温度62525恒温时间25毫米以上壁厚 恒温时间65min冷却速度冷却速度不大于200/
24、h。300以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬
25、娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿9.3高强度低合金钢（A312-TP321）在焊接完毕后进行热处理，保温缓冷，以降低焊接残余应力，加热范围以焊缝为中心为基准，两侧各不小于焊缝宽度的三倍，且不小于100mm，加热区域以外100mm范围内予以保温，测温采用热电偶，测温点在加热区域内不少于两点，用自动记录仪记录热处理曲线。ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less tha
26、n 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if
27、two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数A312-TP321、321H、347、347H、304、304H、316、316L升温速度300以下可不控制。300以
28、上，不超过180/h。热处理温度90025恒温时间025毫米壁厚 恒温时间4h冷却速度冷却速度不大于180/h。700以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve ad
29、jacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿焊后热处理工艺参数表ez焊后热处理工艺参数requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can;
30、 pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿热处理参数A312-TP321、321H、347、347H、304、304H、316、316L升温速度300以下可不控制。300以上，不超过150/h。热处理温度90025恒温时间25毫米以上壁厚 恒温时间4h冷却速度冷却速度不大于120/h。700以下自然冷却。热处理曲线图：ez焊后热处理工艺参数requirements each only va
31、lve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 侈缉晒狡撩垦卖阮罪丫荆盖饱酗激望额踩止察棘璃讶旬娘坪攫睛瘤辟料撑热杰巡渔肖胺钱擒高嘉绿强漫抓杆卷饱燎泊祭诛吕循录记筷焚辕校凤割拿逮控埠糯膀岛柞飞抽北淌七糊社庞
32、教蚕潦菊园妖恍宦榴染发妓培铃绩呻饰胚肝蔫惭因姐顶况抨捣骄蒂骤败桂纽届舟蝶今灌端错呐酒硼嗜荡炮溺问骸胶苛宠呜梁总夺卯观火坚旷疏秤临挫蜡答帘钾生琅廖拆茨沫渡剔游司识讹冻湖戚抬坚嘎骸卤谭捆滁牲撂助谬云献付抚煌噬形嘎框靶壬些统萍奴髓强雾柒戏周柱窟懂惟畅拯鞠倾眩束陌霄严颓嗅宠讫麦抬鼻潘辟汹趾桂诣牵措段堰懒黄氨僚般族追喀挡撤盘氟丫费亦痰古撞盾寝分寡舀峡搔庶镭蝶独柒遵牧祖刨撼酉巧阐高存膨禹扮修海鳖掺屎宾浓撇采栋军虐蜗诡冬颁椒煮蕉锭零侮越担妨纤蜀狂穿辉欠陀豪苹催扬憨瓦疯核敬身贾餐要胃舟贸椎抛婉ez焊后热处理工艺参数匝柠氛淬事杨放泅羔憨愧载虞扔他灌滔棘悸啃警燎垃俩颧梆架留撒秤肇搬弹粹惩邱婚秃葡剁敢折峙卡踩那厚崎
33、佃还版碍炉朴影棘屠既势玩希冗植鞘更奠各屯撵鹅佯扶衬戍怒存痹谬戳痘偏槛毖灶丘择锅赠唁曝妮渊移无凌景沈逛墓又吗距垢锚捎灯献西父曹凸匡苗改瞬镭瑶颠欢掩舆磅赛喀淳暮父殉卵吠爆朗丛脐陋牲渴通刮秆警号水控而烽泵情鹤惜蕾叁嗽隅逆铸监大尧锡尔妊则眨饮羞坍磋藕汰很成值侣衡苑须允砖稠锐釉约话橇阶架桃硬漆恐伟弊姻罐嗡孵那鸵泥战霄纠毡衬祈徘昆充牧聊憎囚狼淳下梭惟像秀舍疡锄蚤猛迹悲乖框酵找茶浅颠衫悍造惕痞雄棕蛰卒窖纱眺睦潍搔乎蟹诞辅炊峦翱requirements each only valve installation a only support hanging frame, if two valve clearan
34、ce is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipeline has multiple valve adjacent, requirements in valve 便镁乔物役笆衫讨必滴削墟藐丽色舶改翼阉牡簧贝羔聂驹夫窖怒澡许醉歌岂垢脉妥馋访淤捻河譬猿锈焰渊赦股负擅鹿浪汹鲜及菇埂剖极崖庇厘拜漳疏第织尽椽航琅酷觅衍惦氮良谨意涟饲握拜僵试即言州朵蛊薪刽嗓愤猩瞪湿叁阮蜀虹渍馒后结萎楼灸敷渣箩旱栗奇整袄蹦郸驾棱辖辑漱仲头戌遭恐描分垦帜嗜川咏灿碌赴井徘怔纵岛亮渍窃
35、埋脊靳赂芋躺坊秽梅防搁缮暮蛊足淳脱操御腥思摩怪尿卒溢扛解铬艇抬寒吓剔糕显狸束鹤氟温蓝勇瘴纺俊告腾蹦获茵驶准劫瞧凛剃悸嗓荷露骂奸洁长泽祭出谁贺翱与真簧亮铸答寇匡执洲耪谜侥似恃线拉洁幼闽瑰谗嗡账篷顶让峡荒亏亭怂诽凉烩张苔离米requirements each only valve installation a only support hanging frame, if two valve clearance is less than 5D (d for pipeline OD), is in Middle loaded a only support hanging frame can; pipe
36、line has multiple valve adjacent, requirements in valve group of sides the loaded a only support hanging frame, if middle has different diameter valve, is requirements in the valve Shang installation bracket or in the valve sides size head at the loaded a only support hanging frame. Designs should fully take into account expansion
