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1、东莞市嘉润喷雾有限公司www.jiarco.com101323055A一种重燃喷嘴体焊接工艺，其特征在于：所述重燃喷嘴体焊接工艺包含有如下步骤并依次执行：主体喷嘴壳体焊接步骤、中心气路壳体焊接步骤、整体喷嘴壳体焊接步骤。本发明喷嘴体的焊接技术填补国内空白。可以应用于重型燃气轮机。Theinventionrelatestoaweldingtechnologyforre-ignitionnozzlebodies,whichischaracterizedinthat,theweldingtechnologyforre-ignitionnozzleb
2、odiescomprisesthefollowingstepswhicharecarriedoutinsequence:theweldingofthemainnozzlehousing,theweldingofthecentralgaspathhousingandtheweldingofthewholenozzlehousing.Theweldingtechnologyfornozzlebodiesoftheinventionhastheadvantagesthat,thedomesticgapinthisfieldisfilled,andt
3、heinventioncanbeappliedtoheavydutygasturbines.101323056A一种锡球，其中，锡球的锡核由纯锡金属制成，且该锡核外围包覆二种以上金属形成的合金焊料层。本发明中锡球的锡核为纯锡，纯锡的柔软度优于一般以合金作为锡核的锡球的焊点，锡核可以吸收大部分的外力，进而提高了锡球焊点的耐冲击性；其次，纯锡锡核不存在形成介金属化合物的问题，不会有晶粒扩大导致焊点破裂的问题，进而提高了锡球焊点的耐热疲劳性；另外，纯锡锡核锡球在表面焊接过程中可以熔融，可以随着电连接器的翘曲而变形(拉长或压扁)，故易于在电连接器和电
4、路板之间形成焊点。因此，使用本发明锡球的电连接器也具有较佳的电气连接性能。
Theinventionrelatestoatinball,whereinthetincoreofthetinballismadefrompuretin,andthethincoreisenvelopedbyanalloysolderlayermadefrommorethantwotypesofmetals.Thetinballhastheadvantagesthat,thetincoreofthetinballismadefrompuretin,andastheso
5、ftnessofpuretinisbetterthanthesolderpointofthetinballusingalloyasthetincore,thetincorecanabsorbmostexternalforce,andthereforetheimpactresistanceofthesolderpointofthetinballisincreased;secondly,puretincoredoesnotforminter-metalliccompounds,andsolderpointfracturecausedbygrain
6、expansioncanbeavoided,thereforethethermalfatigueresistanceofthesolderpointofthetinballisimproved;inaddition,tinballwithpuretincorecanmeltduringthesurfaceweldingprocessandcandeform(becomelongorflat)withthewarpofanelectricalconnector,sosolderpointcanbeeasilyformedbetweentheel
7、ectricalconnectorandacircuitboardtherefore,theelectricalconnectorprovidedwiththetinballoftheinventionalsohasgoodelectricalconnectionproperty.101323057A一种高强度金属芯型无缝药芯焊丝，涉及焊接材料技术领域；本发明可采用现有的钢管拉拔法或在线焊接法无缝药芯焊丝制造技术进行制造，将钢管直径缩小至可获得规定填充率的填充直径，利用振动填充方式从钢管的一端填入填充料后，利用轧辊群和拉丝模具群进行拉丝加工，
8、期间进行中间退火(650℃×2小时)，本发明的高强度金属芯型无缝药芯焊丝能够满足屈服强度大于785MPa可满足高强度结构钢焊接的需求。Theinventionrel
