Article(id=1320423100571829015, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1001-4837.2026.03.003, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1767110400000, receivedDateStr=2025-12-31, revisedDate=1769184000000, revisedDateStr=2026-01-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1792742999451, onlineDateStr=2026-10-23, pubDate=1774800000000, pubDateStr=2026-03-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792742999451, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792742999451, creator=13701087609, updateTime=1792742999451, updator=13701087609, issue=Issue{id=1320423063842304050, tenantId=1146029695717560320, journalId=1319355204128309394, year='2026', volume='43', issue='3', pageStart='1', pageEnd='86', issueExtLink='null', onlineDate='null', pubDate='1774800000000', pubDateStr='2026-03-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1792742990694, creator='13701087609', updateTime=1792745289363, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320432705251165019, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320432705251165020, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=25, endPage=41, ext={EN=ArticleExt(id=1320423101049979672, articleId=1320423100571829015, tenantId=1146029695717560320, journalId=1319355204128309394, language=EN, title=Study on hot melt welding process and mechanical properties of plastic liner with single‑side weld bead for type Ⅳ cylinder, columnId=1320422992476226524, journalTitle=Pressure Vessel Technology, columnName=Experimental Researches, runingTitle=null, highlight=null, articleAbstract=

To address the forming challenges of plastic liners for type Ⅳ hydrogen storage cylinders with large diameter and large length‑to‑diameter ratio,a hot melt welding process with unique low‑cost advantages is adopted to solve the comprehensive optimization problem of weld quality.Taking weld strength and weld morphology as the core optimization objectives,the coupled influence of key process parameters including liner groove size,heating temperature,welding feed speed,and welding feed amount on welding quality is systematically investigated.Through systematic welding experiments,welded pipe specimens are prepared,and their tensile stress-strain curves are tested to evaluate mechanical properties.Combined with macroscopic observation of weld cross‑section morphology and microscopic analysis of fracture structure,the effects of various process parameters on welding forming quality and failure mechanism are revealed.On this basis,the range analysis method is used to comprehensively balance and optimize multiple objectives,and the optimal combination of process parameters is determined:groove size 2.88 mm,heating temperature 252.56 ℃,welding feed speed 1 mm/s,welding feed amount 1.5 mm.This study provides a reliable methodological basis and direct process guidance for the evaluation of hot melt welding process effects and quality improvement of cylindrical plastic liners with large diameter and large length‑to‑diameter ratio.

, authors=Shilei QIAO1, Fuwei GU2, authorsList=Shilei QIAO, Fuwei GU, authorCompany=null, correspAuthors=Fuwei GU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320423109451170633, articleId=1320423100571829015, tenantId=1146029695717560320, journalId=1319355204128309394, language=CN, title=Ⅳ型气瓶单侧焊珠塑料内胆热熔焊接工艺及力学性能研究, columnId=1320422992698524638, journalTitle=压力容器, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

针对大直径、大长径比Ⅳ型储氢瓶塑料内胆的成型难题,基于具有独特的低成本优势的热熔焊接工艺,解决其焊缝质量综合优化问题。以焊缝强度与焊缝形貌作为核心优化目标,系统探究了内胆坡口尺寸、加热温度、焊接进给速度及焊接进给量等关键工艺参数对焊接质量的耦合影响规律。通过开展系统的焊接试验,制备焊管试样,测试其拉伸应力-应变曲线以评估力学性能,并结合焊缝截面宏观形貌观察与断口微观结构分析,揭示了各工艺参数对焊接成形质量及失效机制的影响。在此基础上,运用极差分析法对多目标进行综合权衡与优化,确定了最优工艺参数组合:坡口尺寸2.88 mm、加热温度252.56 ℃、焊接进给速度1 mm/s、焊接进给量1.5 mm。研究为大直径、大长径比圆筒形塑料内胆的热熔焊接工艺效果评价与质量提升提供了可靠的方法依据和直接的工艺指导。

, authors=乔石磊1, 顾付伟2, authorsList=乔石磊, 顾付伟, authorCompany=null, correspAuthors=顾付伟, authorNote=

乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

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顾付伟(1991),男,讲师,硕士研究生导师,主要从事化工过程装备结构强度分析与失效分析、先进轻量化储氢容器的线性-结构-工艺一体化分析设计与轻量化点阵夹层结构的分析、设计、制备及其等效理论等方面的工作,通信地址:213001江苏省常州市武进区中吴大道1801号江苏理工学院,E-mail:。
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乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

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乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

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ArticleFig(id=1320423118313735049, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=图21, caption=显微区域示意, figureFileSmall=VdRcRIkzBUugr/JwMTuwSA==, figureFileBig=R0gNpTtmCcDgLWZJBgThLQ==, tableContent=null), ArticleFig(id=1320423118385038218, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Fig.22, caption=Microstructure of weld cross‑section 5×, figureFileSmall=tLZzs7XiEGbgZYbUxKrlKw==, figureFileBig=7aupZvaWKON/Yi5PFR7ovQ==, tableContent=null), ArticleFig(id=1320423118447952779, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=图22, caption=焊缝断面微观结构 5×, figureFileSmall=tLZzs7XiEGbgZYbUxKrlKw==, figureFileBig=7aupZvaWKON/Yi5PFR7ovQ==, tableContent=null), ArticleFig(id=1320423118515061644, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Fig.23, caption=Microstructure of different positions of each sample 20×, figureFileSmall=5/lKDTDZw2cfJXKvTDPzuw==, figureFileBig=pHfIGE8j3hurDGJXpRJBwA==, tableContent=null), ArticleFig(id=1320423118573781901, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=图23, caption=各样品不同位置微观结构 20×, figureFileSmall=5/lKDTDZw2cfJXKvTDPzuw==, figureFileBig=pHfIGE8j3hurDGJXpRJBwA==, tableContent=null), ArticleFig(id=1320423118649279374, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Fig.24, caption=Sample cross‑section and longitudinal section, figureFileSmall=w3XOn6xVSwU11MAlIoiBNA==, figureFileBig=JVJy1JhgRD4pmzrsm+rPQQ==, tableContent=null), ArticleFig(id=1320423118728971151, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=图24, caption=样品断面与截面, figureFileSmall=w3XOn6xVSwU11MAlIoiBNA==, figureFileBig=JVJy1JhgRD4pmzrsm+rPQQ==, tableContent=null), ArticleFig(id=1320423118804468624, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.1, caption=

Welding parameters and their levels

, figureFileSmall=null, figureFileBig=null, tableContent=
项目坡口尺寸A/mm加热温度B/℃焊接进给速度C/(mm·s-1)焊接进给量D/mm
水平102300.21.5
水平21.52500.62.0
水平33.02701.02.5
), ArticleFig(id=1320423118888354705, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表1, caption=

焊接参数及其水平

, figureFileSmall=null, figureFileBig=null, tableContent=
项目坡口尺寸A/mm加热温度B/℃焊接进给速度C/(mm·s-1)焊接进给量D/mm
水平102300.21.5
水平21.52500.62.0
水平33.02701.02.5
), ArticleFig(id=1320423118959657874, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.2, caption=

Orthogonal experiment table

, figureFileSmall=null, figureFileBig=null, tableContent=
项目坡口尺寸A/mm加热温度B/℃焊接进给速度C/(mm·s-1)焊接进给量D/mm
试验102300.21.5
试验202500.62.0
试验302701.02.5
试验41.52300.62.5
试验51.52501.01.5
试验61.52700.22.0
试验73.02301.02.0
试验83.02500.22.5
试验93.02700.61.5
), ArticleFig(id=1320423119051932564, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表2, caption=

正交试验表

, figureFileSmall=null, figureFileBig=null, tableContent=
项目坡口尺寸A/mm加热温度B/℃焊接进给速度C/(mm·s-1)焊接进给量D/mm
试验102300.21.5
试验202500.62.0
试验302701.02.5
试验41.52300.62.5
试验51.52501.01.5
试验61.52700.22.0
试验73.02301.02.0
试验83.02500.22.5
试验93.02700.61.5
), ArticleFig(id=1320423119119041429, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.3, caption=

Technical parameters of electronic universaltesting machine

, figureFileSmall=null, figureFileBig=null, tableContent=
参数最大试验力/kN精度等级试验力精度/%位移精度/μm调速范围/(mm·min-1)
数值1000.5±0.50.0040.001~500
), ArticleFig(id=1320423119198733206, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表3, caption=

电子万能试验机技术参数

, figureFileSmall=null, figureFileBig=null, tableContent=
参数最大试验力/kN精度等级试验力精度/%位移精度/μm调速范围/(mm·min-1)
数值1000.5±0.50.0040.001~500
), ArticleFig(id=1320423119358116759, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.4, caption=

Rectangular specimen dimensions

, figureFileSmall=null, figureFileBig=null, tableContent=
项目尺寸/mmB/mmLo/mmL/mm
管材20≤DN<50a+0.1DN80≥120
5≤DN<100a+0.1DN120≥170
DN≥100与相同厚度板材的试样尺寸相同
板材a≤1015120≥170
10<a≤2030120≥300
a>201.5a200≥400
), ArticleFig(id=1320423119421031320, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表4, caption=

矩形试样尺寸

, figureFileSmall=null, figureFileBig=null, tableContent=
项目尺寸/mmB/mmLo/mmL/mm
管材20≤DN<50a+0.1DN80≥120
5≤DN<100a+0.1DN120≥170
DN≥100与相同厚度板材的试样尺寸相同
板材a≤1015120≥170
10<a≤2030120≥300
a>201.5a200≥400
), ArticleFig(id=1320423119500723097, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.5, caption=

Tensile strength and maximum elastic strain data

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度/MPa最大弹性应变
试验113.620.929 4
试验233.191.755 4
试验348.013.705 6
试验432.421.085 1
试验545.552.092 5
试验650.453.499 8
试验716.900.211 6
试验840.431.119 1
试验945.832.191 1
), ArticleFig(id=1320423119563637658, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表5, caption=

拉伸强度与最大弹性应变数据

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度/MPa最大弹性应变
试验113.620.929 4
试验233.191.755 4
试验348.013.705 6
试验432.421.085 1
试验545.552.092 5
试验650.453.499 8
试验716.900.211 6
试验840.431.119 1
试验945.832.191 1
), ArticleFig(id=1320423119811101595, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.6, caption=

Tensile strength,weld width and weld heightof specimens

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度/MPa焊缝宽度/mm焊缝高度/mm
试验113.622.501.33
试验233.194.402.12
试验348.015.562.45
试验432.421.160.16
试验545.553.621.71
试验650.455.652.07
试验716.901.42-0.44
试验840.432.310.49
试验945.834.161.65
), ArticleFig(id=1320423119899181981, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表6, caption=

试样拉伸强度、焊缝宽度及高度

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度/MPa焊缝宽度/mm焊缝高度/mm
试验113.622.501.33
试验233.194.402.12
试验348.015.562.45
试验432.421.160.16
试验545.553.621.71
试验650.455.652.07
试验716.901.42-0.44
试验840.432.310.49
试验945.834.161.65
), ArticleFig(id=1320423119974679454, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.7, caption=

Mean response table for each factor

, figureFileSmall=null, figureFileBig=null, tableContent=
指标水平坡口尺寸/mm加热温度/℃焊接进给速度/(mm·s-1)焊接进给量/mm
拉伸强度K131.60720.98034.83335.000
K242.80739.72337.14733.513
K334.38748.09736.82040.287
极差11.20027.1172.3136.773
排秩2143
优选方案A2B3C3D3
焊缝宽度K14.1531.6933.4843.427
K23.4763.4423.2403.822
K32.6295.1223.5333.009
极差1.5243.4290.2930.813
排秩2143
优选方案A3B1C2D3
焊缝高度K11.9640.6491.2961.562
K21.3161.4401.3091.551
K30.8642.0561.5401.031
极差1.1001.4070.2440.531
排秩2143
优选方案A3B1C1D3
), ArticleFig(id=1320423120155034527, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表7, caption=

各因素均值响应表

, figureFileSmall=null, figureFileBig=null, tableContent=
指标水平坡口尺寸/mm加热温度/℃焊接进给速度/(mm·s-1)焊接进给量/mm
拉伸强度K131.60720.98034.83335.000
K242.80739.72337.14733.513
K334.38748.09736.82040.287
极差11.20027.1172.3136.773
排秩2143
优选方案A2B3C3D3
焊缝宽度K14.1531.6933.4843.427
K23.4763.4423.2403.822
K32.6295.1223.5333.009
极差1.5243.4290.2930.813
排秩2143
优选方案A3B1C2D3
焊缝高度K11.9640.6491.2961.562
K21.3161.4401.3091.551
K30.8642.0561.5401.031
极差1.1001.4070.2440.531
排秩2143
优选方案A3B1C1D3
), ArticleFig(id=1320423120259892128, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.8, caption=

Comparison of BP neural network simulated values and experimental values

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度焊缝宽度焊缝高度
试验值/MPa模拟值/MPa误差/%试验值/mm模拟值/mm误差/%试验值/mm模拟值/mm误差/%
试验233.1932.183.144.404.502.222.122.024.95
试验716.9016.940.241.421.441.39-0.46-0.452.22
), ArticleFig(id=1320423120331195297, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表8, caption=

BP神经网络模拟值与试验值对比

, figureFileSmall=null, figureFileBig=null, tableContent=
项目拉伸强度焊缝宽度焊缝高度
试验值/MPa模拟值/MPa误差/%试验值/mm模拟值/mm误差/%试验值/mm模拟值/mm误差/%
试验233.1932.183.144.404.502.222.122.024.95
试验716.9016.940.241.421.441.39-0.46-0.452.22
), ArticleFig(id=1320423120431858594, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.9, caption=

Central composite experimental design and results

, figureFileSmall=null, figureFileBig=null, tableContent=
试验序号坡口尺寸/mm加热温度/℃焊接进给速度/(mm·s-1)焊接进给量/mm拉伸强度/MPa焊缝宽度/mm焊缝高度/mm
11.52700.62.550.155 83.236 02.039 9
202500.62.541.707 72.379 52.244 5
31.52300.62.532.219 41.162 50.157 3
41.52500.6247.227 82.154 72.008 6
51.52500.6246.756 82.782 62.008 6
63.02500.2237.689 75.136 90.440 8
71.52301.0219.071 32.185 90.192 8
81.52501.02.531.565 32.229 11.487 0
902500.61.513.968 14.988 62.290 5
101.52300.61.517.330 41.444 00.630 0
113.02700.62.048.442 83.866 60.644 9
1202501.02.035.963 05.234 02.086 5
131.52700.61.548.734 04.879 42.413 8
141.52700.22.050.430 55.631 42.070 9
1502500.22.041.590 24.165 32.184 5
163.02300.62.017.611 71.283 6-0.435 6
171.52500.62.043.578 62.912 32.008 6
181.52500.62.049.782 52.412 42.008 6
193.02500.62.523.712 51.611 80.580 0
2002700.62.050.141 95.436 22.442 5
211.52501.01.545.542 83.616 21.702 8
221.52500.62.045.123 62.567 52.008 6
231.52300.22.015.592 51.199 60.163 8
241.52500.21.526.043 44.953 82.342 8
251.52500.22.549.720 21.416 62.239 6
263.02500.61.544.915 93.046 8-0.297 5
271.52701.02.049.803 85.016 32.030 5
281.52500.62.042.875 72.534 82.008 6
293.02501.02.030.349 21.431 8-0.331 6
3002300.62.013.734 21.607 91.019 2
), ArticleFig(id=1320423120524133283, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表9, caption=

中心复合试验设计及结果

, figureFileSmall=null, figureFileBig=null, tableContent=
试验序号坡口尺寸/mm加热温度/℃焊接进给速度/(mm·s-1)焊接进给量/mm拉伸强度/MPa焊缝宽度/mm焊缝高度/mm
11.52700.62.550.155 83.236 02.039 9
202500.62.541.707 72.379 52.244 5
31.52300.62.532.219 41.162 50.157 3
41.52500.6247.227 82.154 72.008 6
51.52500.6246.756 82.782 62.008 6
63.02500.2237.689 75.136 90.440 8
71.52301.0219.071 32.185 90.192 8
81.52501.02.531.565 32.229 11.487 0
902500.61.513.968 14.988 62.290 5
101.52300.61.517.330 41.444 00.630 0
113.02700.62.048.442 83.866 60.644 9
1202501.02.035.963 05.234 02.086 5
131.52700.61.548.734 04.879 42.413 8
141.52700.22.050.430 55.631 42.070 9
1502500.22.041.590 24.165 32.184 5
163.02300.62.017.611 71.283 6-0.435 6
171.52500.62.043.578 62.912 32.008 6
181.52500.62.049.782 52.412 42.008 6
193.02500.62.523.712 51.611 80.580 0
2002700.62.050.141 95.436 22.442 5
211.52501.01.545.542 83.616 21.702 8
221.52500.62.045.123 62.567 52.008 6
231.52300.22.015.592 51.199 60.163 8
241.52500.21.526.043 44.953 82.342 8
251.52500.22.549.720 21.416 62.239 6
263.02500.61.544.915 93.046 8-0.297 5
271.52701.02.049.803 85.016 32.030 5
281.52500.62.042.875 72.534 82.008 6
293.02501.02.030.349 21.431 8-0.331 6
3002300.62.013.734 21.607 91.019 2
), ArticleFig(id=1320423122180883364, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.10, caption=

Analysis of variance for the quadratic polynomialmodel of tensile strength

, figureFileSmall=null, figureFileBig=null, tableContent=
项目平方和df均方差p值
模型4 541.1114324.37<0.000 1
A2.6312.630.709 9
B2 764.8612 764.86<0.000 1
C6.4116.410.562 6
D88.27188.270.044 1
AB7.7717.770.524 2
AC0.7310.730.843 9
AD598.861598.86<0.000 1
BC4.2114.210.638 1
BD45.34145.340.136 2
CD354.461354.460.000 5
A2417.391417.390.000 2
B2256.971256.970.001 9
C289.36189.360.043 0
D2143.731143.730.013 4
残差274.281518.29—
失拟误差241.571024.160.081 1
纯误差32.7156.54—
总离差4 815.3929——
), ArticleFig(id=1320423122285740965, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表10, caption=

拉伸强度二次多项式模型的方差分析

, figureFileSmall=null, figureFileBig=null, tableContent=
项目平方和df均方差p值
模型4 541.1114324.37<0.000 1
A2.6312.630.709 9
B2 764.8612 764.86<0.000 1
C6.4116.410.562 6
D88.27188.270.044 1
AB7.7717.770.524 2
AC0.7310.730.843 9
AD598.861598.86<0.000 1
BC4.2114.210.638 1
BD45.34145.340.136 2
CD354.461354.460.000 5
A2417.391417.390.000 2
B2256.971256.970.001 9
C289.36189.360.043 0
D2143.731143.730.013 4
残差274.281518.29—
失拟误差241.571024.160.081 1
纯误差32.7156.54—
总离差4 815.3929——
), ArticleFig(id=1320423122386404262, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.11, caption=

Analysis of variance for the quadratic polynomialmodel of weld width

, figureFileSmall=null, figureFileBig=null, tableContent=
项目平方和df均方差p值
模型60.49144.32<0.000 1
A4.6014.610.000 5
B30.66130.66<0.000 1
C0.6510.650.121 0
D9.8919.89<0.000 1
AB0.3910.390.223 2
AC5.7015.700.000 2
AD0.3410.340.249 5
BC0.6410.640.123 1
BD0.4610.460.184 9
CD1.1611.160.044 4
A21.9111.910.012 8
B20.1010.100.519 8
C24.1914.190.000 8
D20.1110.110.514 9
残差3.60150.24—
失拟误差3.24100.320.055 4
纯误差0.3650.07—
总离差64.1029——
), ArticleFig(id=1320423122487067559, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表11, caption=

焊缝宽度二次多项式模型的方差分析

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项目平方和df均方差p值
模型60.49144.32<0.000 1
A4.6014.610.000 5
B30.66130.66<0.000 1
C0.6510.650.121 0
D9.8919.89<0.000 1
AB0.3910.390.223 2
AC5.7015.700.000 2
AD0.3410.340.249 5
BC0.6410.640.123 1
BD0.4610.460.184 9
CD1.1611.160.044 4
A21.9111.910.012 8
B20.1010.100.519 8
C24.1914.190.000 8
D20.1110.110.514 9
残差3.60150.24—
失拟误差3.24100.320.055 4
纯误差0.3650.07—
总离差64.1029——
), ArticleFig(id=1320423122570953640, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.12, caption=

Analysis of variance for the quadratic polynomial model of weld height

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项目平方和df均方差p值
模型25.77141.84<0.000 1
A11.341113.19<0.000 1
B8.19181.75<0.000 1
C0.4314.300.055 7
D0.0110.090.764 7
AB0.0310.290.596 1
AC0.1111.130.303 6
AD0.2112.130.165 3
BC0.00110.010.914 3
BD0.00210.020.878 0
CD0.00310.030.861 1
A23.3313.33<0.000 1
B22.7612.76<0.000 1
C20.3610.360.077 2
D20.0410.040.534 7
残差1.50150.10—
失拟误差1.34100.130.062 0
纯误差0.1650.03—
总离差27.2729——
), ArticleFig(id=1320423122671616937, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表12, caption=

焊缝高度二次多项式模型的方差分析

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项目平方和df均方差p值
模型25.77141.84<0.000 1
A11.341113.19<0.000 1
B8.19181.75<0.000 1
C0.4314.300.055 7
D0.0110.090.764 7
AB0.0310.290.596 1
AC0.1111.130.303 6
AD0.2112.130.165 3
BC0.00110.010.914 3
BD0.00210.020.878 0
CD0.00310.030.861 1
A23.3313.33<0.000 1
B22.7612.76<0.000 1
C20.3610.360.077 2
D20.0410.040.534 7
残差1.50150.10—
失拟误差1.34100.130.062 0
纯误差0.1650.03—
总离差27.2729——
), ArticleFig(id=1320423122755503018, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=EN, label=Tab.13, caption=

Optimal experimental scheme

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项目ABCDY1Y2Y3期望值
12.81252.561.001.5050.432.090.000.959
22.81252.581.001.5050.432.090.000.959
32.82252.620.991.5050.432.090.000.959
42.83252.710.981.5050.452.090.000.958
52.84252.710.981.5050.432.090.000.958
62.85252.750.971.5050.432.100.000.958
72.82252.950.991.5150.432.100.000.958
82.86252.820.961.5050.432.110.000.958
92.83253.061.001.5250.432.110.000.958
102.86252.870.951.5050.432.110.000.957
), ArticleFig(id=1320423122835194795, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423100571829015, language=CN, label=表13, caption=

最优试验方案

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项目ABCDY1Y2Y3期望值
12.81252.561.001.5050.432.090.000.959
22.81252.581.001.5050.432.090.000.959
32.82252.620.991.5050.432.090.000.959
42.83252.710.981.5050.452.090.000.958
52.84252.710.981.5050.432.090.000.958
62.85252.750.971.5050.432.100.000.958
72.82252.950.991.5150.432.100.000.958
82.86252.820.961.5050.432.110.000.958
92.83253.061.001.5250.432.110.000.958
102.86252.870.951.5050.432.110.000.957
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Ⅳ型气瓶单侧焊珠塑料内胆热熔焊接工艺及力学性能研究
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乔石磊 1 , 顾付伟 2
压力容器 | 试验研究 2026,43(3): 25-41
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压力容器 |试验研究 2026 , 43 (3) : 25 -41
Ⅳ型气瓶单侧焊珠塑料内胆热熔焊接工艺及力学性能研究
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乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

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乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

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乔石磊1 , 顾付伟2
作者信息
  • 1中船恒宇能源(上海)有限公司,上海 200090
  • 2江苏理工学院 机械工程学院,江苏 常州 213001
通讯作者:
顾付伟(1991),男,讲师,硕士研究生导师,主要从事化工过程装备结构强度分析与失效分析、先进轻量化储氢容器的线性-结构-工艺一体化分析设计与轻量化点阵夹层结构的分析、设计、制备及其等效理论等方面的工作,通信地址:213001江苏省常州市武进区中吴大道1801号江苏理工学院,E-mail:。
作者简介:

乔石磊(1984),男,研究方向为轻量化设计与分析,通信地址:200090上海市杨浦区河间路1280号21楼中船恒宇能源(上海)有限公司,E-mail:。

Study on hot melt welding process and mechanical properties of plastic liner with single‑side weld bead for type Ⅳ cylinder
Shilei QIAO1 , Fuwei GU2
Affiliations
  • 1CSSC Hengyu Energy (Shanghai) Co.,Ltd,Shanghai 200090,China
  • 2School of Mechanical Engineering,Jiangsu University of Technology,Changzhou 213001,China
出版时间: 2026-03-30 doi: 10.3969/j.issn.1001-4837.2026.03.003
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针对大直径、大长径比Ⅳ型储氢瓶塑料内胆的成型难题,基于具有独特的低成本优势的热熔焊接工艺,解决其焊缝质量综合优化问题。以焊缝强度与焊缝形貌作为核心优化目标,系统探究了内胆坡口尺寸、加热温度、焊接进给速度及焊接进给量等关键工艺参数对焊接质量的耦合影响规律。通过开展系统的焊接试验,制备焊管试样,测试其拉伸应力-应变曲线以评估力学性能,并结合焊缝截面宏观形貌观察与断口微观结构分析,揭示了各工艺参数对焊接成形质量及失效机制的影响。在此基础上,运用极差分析法对多目标进行综合权衡与优化,确定了最优工艺参数组合:坡口尺寸2.88 mm、加热温度252.56 ℃、焊接进给速度1 mm/s、焊接进给量1.5 mm。研究为大直径、大长径比圆筒形塑料内胆的热熔焊接工艺效果评价与质量提升提供了可靠的方法依据和直接的工艺指导。

储氢气瓶  /  热熔焊接  /  塑料内胆

To address the forming challenges of plastic liners for type Ⅳ hydrogen storage cylinders with large diameter and large length‑to‑diameter ratio,a hot melt welding process with unique low‑cost advantages is adopted to solve the comprehensive optimization problem of weld quality.Taking weld strength and weld morphology as the core optimization objectives,the coupled influence of key process parameters including liner groove size,heating temperature,welding feed speed,and welding feed amount on welding quality is systematically investigated.Through systematic welding experiments,welded pipe specimens are prepared,and their tensile stress-strain curves are tested to evaluate mechanical properties.Combined with macroscopic observation of weld cross‑section morphology and microscopic analysis of fracture structure,the effects of various process parameters on welding forming quality and failure mechanism are revealed.On this basis,the range analysis method is used to comprehensively balance and optimize multiple objectives,and the optimal combination of process parameters is determined:groove size 2.88 mm,heating temperature 252.56 ℃,welding feed speed 1 mm/s,welding feed amount 1.5 mm.This study provides a reliable methodological basis and direct process guidance for the evaluation of hot melt welding process effects and quality improvement of cylindrical plastic liners with large diameter and large length‑to‑diameter ratio.

hydrogen storage cylinder  /  hot melt welding  /  plastic liner
乔石磊, 顾付伟. Ⅳ型气瓶单侧焊珠塑料内胆热熔焊接工艺及力学性能研究. 压力容器, 2026 , 43 (3) : 25 -41 . DOI: 10.3969/j.issn.1001-4837.2026.03.003
Shilei QIAO, Fuwei GU. Study on hot melt welding process and mechanical properties of plastic liner with single‑side weld bead for type Ⅳ cylinder[J]. Pressure Vessel Technology, 2026 , 43 (3) : 25 -41 . DOI: 10.3969/j.issn.1001-4837.2026.03.003
高压气态储氢是当前氢能汽车等领域的主流技术[1-4]。为提升储氢密度,车载储氢压力已提高至70  MPa,对储氢瓶可靠性提出了更高要求[5]。复合材料全缠绕气瓶(特别是Ⅲ型与Ⅳ型)因轻质高强、耐疲劳性能好,成为发展重点[6-7]。其中,Ⅳ型气瓶(塑料内胆全缠绕)具有更高的储氢密度,是近年来的研究热点[8]。
当前研究多集中于Ⅳ型瓶整体性能或纤维缠绕工艺[9-13],对其塑料内胆制造工艺的关注度相对不足。大容积内胆常需通过焊接(如封头与筒身)成型[14-18]。在聚合物焊接中,热板焊接作为一种低成本热熔焊接方式,通过分子扩散形成接头,其强度取决于工艺参数[19]。
研究表明,焊接温度、压力、时间等参数显著影响焊缝质量,加热不足或压力不当会导致分子链缠结不充分,强度下降[20-22]。焊接过程中形成的“卷边”易引发应力集中,加速裂纹扩展,降低接头耐久性[23-27]。此外,界面几何形状(如坡口)也是关键因素[28-29]。
在文中所述的应用场景中,Ⅳ型储氢瓶塑料内胆的结构如图1(a)所示,内胆由两个封头和筒身构成,封头与筒身焊接连接。为了在内胆外侧缠绕碳纤维,需要将卷边车削去除;而内侧的卷边也可能造成应力集中。图1(b)示出常规塑料热熔焊接产生的焊缝,其内外侧焊珠的存在不影响使用。因此,本文引入坡口这一焊接结构,以尼龙管代替真实内胆以降低试验成本,对Ⅳ型高压气态储氢瓶塑料内胆的热熔焊接成型工艺开展深入研究,以期为高质量塑料内胆焊缝的成型工艺提供理论支撑与方法指导。
聚酰胺6(PA6)是制造Ⅳ型储氢瓶塑料内胆的常用半结晶热塑性材料[30],其力学性能具有显著的温敏特性[31-34]。如图2所示,PA6在不同温度下呈现三种典型力学状态:玻璃态、高弹态与黏流态,其转变关键点为玻璃化转变温度(Tg,约50 ℃)与黏流温度(Tf)。在室温下,材料处于刚性玻璃态;在热熔焊接过程中,通过加热使材料进入从高弹态到黏流态的转变区间,促使分子链充分运动以实现熔合。该过程为物理变化,不涉及化学交联[35-36]。对PA6热机械特性的理解是优化焊接工艺、实现可靠焊缝成形的重要理论基础。
在焊接过程中,PA6管道端面经加热达到熔融状态。随后施加压力使两端面紧密接触,促使熔融分子链相互迁移、渗透与重组。卸压冷却后,焊接区域通过分子链的物理缠结形成稳定接头。
热熔对接焊接主要分为4个阶段:预热、加热、切换和冷却,如图3所示。在采用热熔对接焊对PA6尼龙管进行焊接时,通过热板加热使管端达到熔融状态并形成一定熔深。随后在压力作用下,两端熔体接触并发生流动、扩散与分子间渗透,形成物理结合后冷却固化。此过程中,焊接时间与速度等参数直接影响熔体行为,进而影响由熔体挤出形成的卷边形貌。该卷边结构常导致应力集中,从而削弱焊接接头的拉伸性能。
为系统研究热熔焊接参数对焊接质量的影响并优化工艺,文中采用正交试验法设计试验。该方法能以较少试验次数高效分析多因素、多水平问题,是工艺优化的常用统计方法。
参考已有研究及经验[37-39],选定加热温度、焊接压力、坡口尺寸及加热时间为关键影响因素。试验所用焊接设备通过步进电机驱动丝杠施压,因此实际以焊接进给速度与进给量来表征焊接压力。为控制变量,加热时间统一设定为80  s,热板切换时间为6  s,保压时间为10  min。最终确定四因素三水平的试验方案,各因素水平值依据尼龙管生产厂家提供的焊接参数数据库,并经过初步试验确定,如表1所示。
基于L9(43)正交表安排试验,利用Minitab软件生成9组试验方案,如表2所示。该设计可系统分析各因素对焊接性能的影响,并识别最优工艺参数组合。
采用实验室自主搭建的焊接设备进行焊接,如图4所示。设备由底部工作台、上部框架以及相应PLC自动控制设备构成,采用压力传感器反馈焊接过程中的力大小,传感器精度为0.3%  FS。底部电机可在0~3  mm/s的速度范围内运行。
本次焊接试验在室内进行,严格控制室内环境条件。室内温度保持在27  ℃,确保空气保持静止,以避免外界因素对焊接过程的影响。焊接操作依据HG/T  4281—2011《塑料焊接工艺规程》进行,按照该标准制备热熔焊接接头,以确保焊接质量及工艺的规范性与一致性。通过这种精确控制的环境和规范的操作步骤,确保焊接试验的可靠性和再现性。
焊接材料为PA6尼龙管(见图5)。该材料购自保定皓石橡胶制品销售有限公司,其拉伸强度为62.25  MPa,压缩强度为69.5  MPa,热变形温度≥150  ℃。使用酒精对焊接区域进行彻底清洁,确保该区域无杂质、油脂和水分,且保持清洁干燥。焊接过程如图6所示。依据试验参数设计完成9组试验后,得到的焊接接头如图7所示。
拉伸试验设备为深圳三思纵横科技有限公司的UTM5105X电子万能试验机,其主要参数如表3所示。
为了降低试样制备成本,文中选择了矩形试样。试样尺寸由PA6尼龙管的公称外径DN和壁厚a决定,具体尺寸、平行长度部分宽度B、原始标距Lo及试样总长度L见表4。根据标准并结合实际情况,文中试样尺寸为长100  mm、宽15  mm,取样位置如图8所示。
为减少卷边对试验结果的影响,取样前先对外壁卷边进行车削处理(见图9),沿管段周边以焊缝为中心均匀切取样条,确保样条纵向与管轴平行。制备过程中避免样条被压平,并喷洒冷却液以防止热影响,每组试验取3个样条(见图10),以保证数据的可靠性与重复性。
将试样安装在拉伸试验机的夹具中,确保试样轴线与拉伸方向一致。调整夹具位置,使试样处于拉直状态且无预应力,并在27 ℃温度下开展试验。为了更加精确地记录焊缝的拉伸强度,并减少拉伸速度对结果的影响[40],采用准静态拉伸[41],拉伸速度设为2  mm/min。记录最大拉伸力,并与初始截面积结合计算试样的拉伸强度。
此外,由于拉伸试验时存在装夹和样件尺寸误差等问题,在进行拉伸试验的同时,采用数字图像相关(digital image correlation,DIC)法进行三维位移应变分析。拉伸结束后,所有试样均在焊缝处被拉断,如图11所示。
通过对拉伸试验获得的原始数据进行处理,剔除明显偏差较大的曲线后,在每组试验中选择一条具有典型趋势的曲线,绘制力-位移曲线图,如图12所示。
根据DIC应力云图(见图13,云图上的红色虚线代表焊缝中心线)及表5中拉伸强度与最大弹性应变的数据,可初步得出以下结论。
(1)坡口尺寸对焊接强度的影响趋势不显著。其中,试验7因焊料未填满坡口导致有效焊接面积减小,因此最大应变较低。
(2)焊接温度升高有助于降低焊缝弹性模量、增大弹性变形能力,有利于提升储氢瓶在高压下的承载与形变适应能力。
(3)试验3表现出明显塑性阶段,表明其焊接接头具有更高的韧性,这可能与分子链更充分地相互交融有关。部分试样应变分布异常可能与装夹偏差或试样制备过程中外部焊珠未彻底切除有关。
文中通过拉伸强度与焊缝形貌综合评价焊接性能。其中,焊缝形貌以焊缝宽度及内壁焊缝高度表征(见图14)。使用游标卡尺对各组试样进行测量,沿圆周方向均匀选取3个位置,分别记录焊缝宽度与高度,并取平均值作为最终结果。需说明的是,因坡口结构影响,当焊缝填充不足时,内壁焊缝高度可能出现负值。
文中对9组试样进行了拉伸试验,测得拉伸强度、焊缝宽度及内壁焊缝高度等数据(见表6)。结果表明,不同试验条件下的焊接性能变化趋势复杂,这主要源于各焊接参数间的交互作用。因此,有必要进一步研究各参数对焊接性能的具体影响机制,以指导工艺优化。
需要特别注意的是,试验7中的焊缝高度数据为-0.44  mm,这是由于存在坡口,而焊接过程中焊珠没有填满坡口,在实际焊接中应避免此问题。因此,在下文极差分析中将此值取绝对值。
对试验结果进行极差分析,以评估各焊接参数对性能指标的影响程度。极差反映因素在不同水平下指标值的离散程度,其值越大表明该因素影响越显著。通过Minitab软件进行正交分析,得到均值响应表(见表7),并按极差大小对各因素进行排序(秩次1~4)。
根据极差分析结果(见表7),加热温度对各指标的影响均为最大,这可能掩盖了其他因素的相对影响。对于拉伸强度(越大越好),最优方案为A2B3C3D3;对于焊缝宽度与高度(越小越好),最优方案分别为A3B1C2D3与A3B1C1D3。
值得注意的是,在优化焊缝形貌时,焊接进给量需取最大值。此现象可能源于:较大进给量能在保压初期建立更高压力,减少后续持续进给需求,从而降低熔体挤出量;反之,较小进给量需持续补压,实际挤出量反而增加。
图15示出拉伸强度主效应图,其中加热温度曲线最陡且单调,表明其对拉伸强度影响最为显著。这是由于温度越高,熔融越充分,焊接界面分子链交织融合更彻底,利于强度提升。
图16、图17可直观看出各影响因素对焊缝宽度与焊缝高度的影响规律。
为完善模型并降低试验成本,采用BP神经网络对试验结果进行模拟。网络以坡口尺寸、加热温度、焊接进给速度与进给量作为输入,以拉伸强度、焊缝宽度和高度作为输出。从9组正交试验数据中选取试验2、试验7作为测试集,其余作为训练集。网络结构设置如下:输入层4节点,输出层1节点,隐含层9节点;学习率0.035,动量因子0.02,迭代50次,误差目标0.000 1。
从表8中可以看出,测试集的2组数据与试验值较为接近,测试集的相对误差最大为4.95%,可见训练集建立的模型稳定、预测精度高,因此认为可用于响应面分析。
表9示出基于中心复合试验设计,并通过神经网络模拟得到3个输出变量的预测值。根据表9中的数据样本,通过Design-Expert 13软件得到拉伸强度(Y1)、焊缝宽度(Y2)和焊缝高度(Y3)的二次多项式回归模型:
Y1=45.89+0.47A+15.18B-0.73C+2.71D-1.39AB-0.43AC-12.24AD-1.03BC-3.37BD-9.41CD-7.8A2-6.12B2-3.61C2-4.58D2
Y2=2.56-0.62A+1.6B-0.23C-0.91D-0.31AB-1.19AC+0.29AD-0.4BC-0.37BD+0.54CD+0.53A2+0.12B2+0.78C2-0.12D2
Y3=2.08-0.97A+0.83B-0.19C-0.03D-0.09AB-0.17AC+0.23AD-0.02BC+0.02BD-0.03CD-0.7A2-0.63B2-0.23C2-0.08D2
从表10~12中可以看出,3个回归模型的p值均小于0.0001,模型高度显著;失拟项p值均大于0.05,表明失拟不显著,模型拟合良好。各因素对指标的影响程度依次为:拉伸强度受加热温度影响最大,其次为焊接进给量、焊接进给速度和坡口尺寸;焊缝宽度主要受加热温度影响,随后是焊接进给量、坡口尺寸和焊接进给速度;焊缝高度则受坡口尺寸影响最显著,其次是加热温度、焊接进给速度和焊接进给量。
从回归模型的3D响应曲面图(见图18)可以看出,当坡口尺寸为1.5  mm且与焊接进给量成反比关系时,可获得最大拉伸强度。在各因素中,加热温度对拉伸强度的正向影响最为显著,而焊接进给速度与进给量的影响相对较小。
从图19可以看出,坡口尺寸越大、加热温度越高,焊缝宽度越大;坡口尺寸与焊接进给速度在中间范围时焊缝宽度较小;焊接进给量越大,焊缝宽度反而越小。这些现象的原因已在前文给出。
从图20可以看出,坡口尺寸越小、加热温度越高,焊缝高度越高;与坡口尺寸和加热温度相比,焊接进给速度和焊接进给量对焊缝高度的影响不显著。
通过Design-Expert软件的Optimization模块,在保持自变量取值范围与试验一致的前提下,以拉伸强度最大、焊缝宽度和焊缝高度最小(高度下限为0)为目标进行多目标优化。优化结果(见表13)表明,最优工艺参数为坡口尺寸2.88  mm、加热温度252.56  ℃、焊接进给速度1  mm/s及焊接进给量1.5  mm。
使用光学显微镜对断面进行观测,试样摆放方位与观察区域如图21所示。其中,区域1为断面中部,区域2为断面边缘,区域3为焊珠。
使用高清测量金相显微镜对断面进行观察,如图22所示。9组试验的断面分析显示,中部区域熔体流动紊乱且坑洼较多,而边缘区域则较为平坦且流动轨迹清晰[42]。这主要是由于中部熔体受挤压向两侧流动,带动边缘熔体向外移动所致。在坡口尺寸为3  mm的试样中,由于坡口较大、熔体填充不足,断面边缘出现明显高低起伏,暴露出本应处于观测区之外的焊珠结构。该现象减小了有效焊接面积,并导致拉伸强度轻微下降。
结合9组试验的显微图像(见图23)与表5数据可知,随着温度的升高,断裂方式由脆性向塑性转变,分子链缠结更紧密,拉伸强度相应提高。试验6因焊接速度最慢、进给量最大,熔体流动层取向接近平行于焊缝面,故断面形貌表现平坦,呈现出一定特殊性[43]。
多数试验样品的焊珠都有较多气泡且外翻明显,说明焊珠与母材结合不紧密,导致拉伸强度下降。试验1和试验6中,焊珠宏观形式如图24所示,焊缝面延伸至焊珠边缘,且焊珠充分填补坡口,使得焊缝面积更大,从而增强了拉伸强度。
文中围绕Ⅳ型储氢瓶塑料内胆的热熔焊接工艺,系统考察了坡口尺寸、加热温度、焊接进给速度与焊接进给量等关键工艺参数对焊缝力学性能与形貌特征的影响。通过正交试验、多指标分析与极差分析,结合宏观力学测试与微观结构观察,揭示了各参数对焊接质量的作用机制。主要结论如下。
(1)加热温度对焊接强度的影响最为显著,较高的温度有助于分子链扩散与缠结,从而提升接头强度与韧性。坡口尺寸影响熔体填充状态,尺寸过大会导致未焊透缺陷,降低有效结合面积。焊接进给量与焊接进给速度共同调控熔体流动与挤出行为,进而影响焊缝形貌与应力分布。
(2)通过建立响应面模型,确定了兼顾高强度与良好形貌的最优工艺参数组合:坡口尺寸2.88
mm、加热温度252.56  ℃、焊接进给速度1  mm/s、进给量1.5  mm。在此条件下,焊接接头拉伸强度约为50.43  MPa,焊缝形貌均匀且无明显应力集中。所建立的BP神经网络模型与二次多项式回归模型预测精度较高,为工艺优化提供了可靠工具。
(3)研究为大口径塑料内胆的热熔焊接工艺提供了系统的实验依据与理论指导,对提升Ⅳ型储氢瓶的制造质量与可靠性具有实际应用价值,并为后续开展焊接接头的疲劳性能与耐久性研究奠定了基础。

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2026年第43卷第3期
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doi: 10.3969/j.issn.1001-4837.2026.03.003
  • 接收时间:2025-12-31
  • 首发时间:2026-10-23
  • 出版时间:2026-03-30
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  • 收稿日期:2025-12-31
  • 修回日期:2026-01-24
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    1中船恒宇能源(上海)有限公司,上海 200090
    2江苏理工学院 机械工程学院,江苏 常州 213001

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顾付伟(1991),男,讲师,硕士研究生导师,主要从事化工过程装备结构强度分析与失效分析、先进轻量化储氢容器的线性-结构-工艺一体化分析设计与轻量化点阵夹层结构的分析、设计、制备及其等效理论等方面的工作,通信地址:213001江苏省常州市武进区中吴大道1801号江苏理工学院,E-mail:。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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