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1、东莞市嘉润喷雾有限公司101323055A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。The invention relates to a welding technology for re-ignition nozzle bodies, which is characterized in that, the welding technology for re-ignition nozzle bodies comprises th
2、e following steps which are carried out in sequence: the welding of the main nozzle housing, the welding of the central gas path housing and the welding of the whole nozzle housing. The welding technology for nozzle bodies of the invention has the advantages that, the domestic gap in this field is f
3、illed, and the invention can be applied to heavy duty gas turbines.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路板之间形
4、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。The invention relates to a tin ball, wherein the tin core of the tin ball is made from pure tin, and the thin core is enveloped by an alloy solder layer made from more than two types of metals. The tin ball has the advantages that, the tin core of the tin ball is made
5、 from pure tin, and as the softness of pure tin is better than the solder point of the tin ball using alloy as the tin core, the tin core can absorb most external force, and therefore the impact resistance of the solder point of the tin ball is increased; secondly, pure tin core does not form inter-
6、metallic compounds, and solder point fracture caused by grain expansion can be avoided, therefore the thermal fatigue resistance of the solder point of the tin ball is improved; in addition, tin ball with pure tin core can melt during the surface welding process and can deform (become long or flat)
7、with the warp of an electrical connector, so solder point can be easily formed between the electrical connector and a circuit board therefore, the electrical connector provided with the tin ball of the invention also has good electrical connection property.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
8、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，期间进行中间退火(6502 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。The invention relates to a high strength metal core type seamless flux-cored welding wire belonging to the technical field of welding materials
9、; the invention can be manufactured by the present steel tube drawing or in-service welding seamless flux-cored welding wire manufacturing technology; the diameter of the steel tube is reduced to the extent that the filling diameter of a specified filling rate can be acquired; by using the vibration
10、 filling pattern, filler is filled from one end of the steel tube; wire drawing processing is performed by a roller group or a wire drawing die group, and during the period intermediate annealing is carried out (650 DEG C two hours). The high strength metal core type seamless flux-cored welding wire
11、 of the invention has the advantage that, yield strength is larger than 785MPa, and the requirements of high strength structure steel welding can be satisfied. 101323058A本发明属于焊接材料技术。提出的酸性药皮超级双相不锈钢焊条采用2507 双相不锈钢丝作为焊芯，焊条药皮成分及含量的质量百分比为：金红石3540，钛白粉37，钾长石1520，金云母13，大理石510，金属粉1620，氟化稀土0.51.5，冰晶石23，铬绿58，纯碱
12、0.51.0，铁合金1.53.5。本发明焊条进行工艺性、金相观察、力学性能和耐蚀性试验的结果显示：焊条具有极佳的焊接工艺性能，焊接时电弧稳定，基本无飞溅，焊缝成型好，脱渣性良好，焊条操作性能优异。经金相观察，焊缝组织中铁素体的含量为4060 ，相比例满足工程应用要求。焊接出的焊缝具有优异的力学性能，抗拉强度可达800MPa以上，良好的低温韧性。焊缝的耐应力腐蚀性、耐点蚀性能优异。The invention relates to an acidic coating super duplex stainless steel welding rod belonging to welding mate
13、rial technology, which is characterized in that, the invention adopts 2507 duplex stainless steel wire as the welding core; the components and the weight percentages of the components of the welding rod coating is that: rutile 3040, titanium dioxide 37, potash feldspar 1520, phlogopite 13, marble 51
14、0, metal powder 1620, rare earth fluoride 0.51.5, cryolite 23, chrome green 58, soda 0.51.0 and ferroalloy 1.53.5. The welding rod of the invention has the advantages that, the test results of manufacturability, metallographic observation, mechanical property and corrosion resistance show that, the
15、welding rod has extremely good welding technical property; electric arc is stable during welding, and basically spattering does not exist; weld formation is good; slag detachability is good; the manipulability of the welding rod is excellent; through metallographic observation, the content of ferrit
16、e in the weld structure ranges from 40% to 60%, and the phase ratio can meet engineering application requirement; the welded welding seam has excellent mechanical property, and tensile strength can be more than 800 MPa; low temperature toughness is good; the stress corrosion resistance and pitting corrosion resistance of the welding seam are excellent. 101323059A内生Cu6Sn5颗粒增强锡银基无铅复合钎料合金及其制
