填料环在运载型号导管全位置焊接中的应用研究
Research on the Packing Rings of Full-position Welding in Launch Vehicle Dynamic Pipe
- 2025年55卷第11期 页码:17-22
收稿:2025-02-09,
修回:2025-03-21,
纸质出版:2025-11-20
DOI: 10.7512/j.issn.1001-2303.2025.11.03
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收稿:2025-02-09,
修回:2025-03-21,
纸质出版:2025-11-20
移动端阅览
随着导管自动焊工艺的发展,薄壁不锈钢导管的全位置焊接技术逐渐得到发展和应用。针对导管全位置焊接中设备空腔狭小导致填丝操作受限问题,提出以填料环替代传统焊丝的焊接方案,研究填料环对1Cr18Ni9Ti不锈钢薄壁无缝钢管全位置焊接的影响,并与应用成熟的手工氩弧焊工艺进行对比。通过优化填料环结构设计、密闭空腔装夹定位及分区段全位置焊接参数设定,实现了填料环代替焊丝在导管全位置焊接中的应用。结果表明,填料环可有效替代焊丝,获得成形饱满、无内部缺陷的焊缝。添加填料环得到的焊缝抗拉强度平均值可达617 MPa,略高于手工氩弧焊,断裂位置均位于母材。其断口韧窝高倍扫描下显示出密集蜂窝状,韧窝深度较大。使用填料环全位置焊和手工氩弧焊得到的导管耐高压爆破压力相当,可达到17 MPa,撕裂位置均位于母材薄弱处,撕裂方向为轴向开裂。本研究为狭小设备空间内导管全位置填丝加强焊接提供了可行技术路径。
With the development of automatic welding technology for pipes
the full-position welding technology for thin-walled stainless steel conduits has gradually been developed and applied. Faced with the current situation of narrow equipment cavities that cannot achieve wire filling welding
this paper studied on the influence of packing rings in full-position welding of 1Cr18Ni9Ti thin-wall pipe
and compared with SMAW (shielded metal arc welding). By designing the packing ring
clamping and positioning in the sealed cavity
and setting the welding parameters for full-positions in different sections
the application of packing ring instead of welding wire in the all position welding of pipes is achieved. The results show that packing rings can effectively replace the welding wire to achieve full forming and good internal quality weld seam. The average tensile strength of the weld seam reaches 617 MPa
higher than SMAW
and the fracture location is on the base mental. The fracture surface shows dense cellular structures with deep dimples. The weld seam burst pressures of packing rings full-position welding and SMAW are equivalent that reaches 17 MPa. The tearing positions are all located at the weak points of the base mental,and the tearing direction is axial cracking. This provides feasible experience for the full-position welding of pipes in narrow equipment spaces to achieve wire reinforcement welding.
冯苏乐 , 赵毕艳 , 罗益民 , 等 . 液力成形在运载火箭增压输送系统中的应用 [J]. 航天制造技术 , 2014 ( 5 ): 38 - 42 .
FENG S L , ZHAO B Y , LUO Y M , et al . Application of Hydraulic Forming in the Boosting and Conveying System of Launch Vehicles [J]. Aerospace Manufacturing Technology , 2014 ( 5 ): 38 - 42 .
郭敬 , 宋晶晶 , 孔凡超 . 发动机推进剂增压输送系统建模仿真技术综述 [J]. 火箭推进 , 2015 , 41 ( 5 ): 1 - 6 .
GUO J , SONG J J , KONG C F . Overview of Modeling and Simulation Technology for Engine Propellant Boosting and Delivery System [J]. Journal of Rocket Propulsion , 2015 , 41 ( 5 ): 1 - 6 .
杨诗君 . 大径厚比薄壁圆钢管受弯性能研究 [D]. 黑龙江 : 哈尔滨工业大学 , 2014 .
YANG S J . Research on the Bending Performance of Thin walled Circular Steel Tubes with Large Diameter to Thickness Ratio [D]. Heilongjiang : Harbin Institute of Technology , 2014 .
全辰生 . 锅炉、压力容器和管道焊接技术的新发展 [J]. 科学技术创新 , 2012 ( 02 ): 110 .
QUAN C S . New developments in welding technology for boilers, pressure fuses, and pipelines [J]. Scientific and Technological Innovation , 2012 ( 02 ): 110 .
胡德虎 , 李博锋 . 小直径管材全位置自动对接焊工艺及接头组织与性能 [J]. 机械制造 , 2020 ( 4 ): 25 - 30 .
HU D H , LI B F . Small diameter pipe all position automatic butt welding process and joint structure and properties [J]. Machinery , 2020 ( 4 ): 25 - 30 .
韩赞东 , 都东 , 陈强 , 等 . 管道全位置焊接参数控制系统 [J]. 焊接学报 , 2023 , 24 ( 5 ): 1 - 4+9 .
HAN Z D , DU D , CHEN Q , et al . Pipeline all position welding parameter control system [J]. Transactions of the China Welding Institution , 2023 , 24 ( 5 ): 1 - 4+9 .
高亮 , 王广海 , 崔雷 . 自动环焊机在航空发动机中的应用 [J]. 电焊机 , 2017 , 47 ( 09 ): 39 - 42+49 .
GAO L , WANG G H , CUI L . Application of Automatic Ring Welding Machine in Aircraft Engines [J]. Electric Welding Machine , 2017 , 47 ( 09 ): 39 - 42+49 .
史春山 . 高温合金导管全位置自动焊接工艺 [J]. 电焊机 , 2018 , 48 ( 12 ): 109 - 112 .
SHI C S . Automatic welding process for high temperature alloy conduits at all positions [J]. Electric Welding Machine , 2018 , 48 ( 12 ): 109 - 112 .
何瑞芳 . 管子根部焊道环形衬垫的选用 [J]. 焊接 , 1982 ( 4 ): 30 - 31 .
HE R F . Selection of circular gaskets for the root weld of pipes [J]. Welding & Joining , 1982 ( 4 ): 30 - 31 .
谢峰 , 张凌云 , 厉克勤 . 铝合金小直径薄壁管的全位置焊工艺研究 [J]. 宇航材料工艺 , 2000 ( 4 ): 58 - 61 .
XIE F , ZHANG L Y , LI K Q . Research on All Position Welding Process of Aluminum Alloy Small Diameter Thin Wall Tube [J]. Aerospace Materials & Technology , 2000 ( 4 ): 58 - 61 .
郑韶先 , 徐龙强 , 杜宝峰 , 等 . 1Cr18Ni9Ti不锈钢脉冲超窄间隙焊接头的组织及耐腐蚀性能 [J]. 机械工程材料 , 2021 , 45 ( 4 ): 13 - 18 .
ZHENG S X , XU L Q , DU B F , et al . Microstructure and corrosion resistance of 1Cr18Ni9Ti stainless steel pulse ultra narrow gap welded joint [J]. Materials and Mechanical Engineering , 2021 , 45 ( 4 ): 13 - 18 .
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