免耕播种机开沟圆盘水射流淬火工艺数值模拟及验证
针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行数值模拟，分析了射流阵列参数（喷嘴间距、喷嘴直径和射流速度）对淬火结果的影响，并对工艺参数的优选数值进行了试验验证，二者显示了较好的一致性。结果表明：喷嘴间距是关键工艺参数，当喷嘴间距取4～5 mm时，开沟圆盘可以整体淬透，硬度达到45～49 HRC。开沟圆盘的变形量与喷嘴间距呈抛物线关系，当喷嘴间距取5～6 mm时，变形量达到最大值1.80×10^-2～3.30×10^-2 mm，淬透后变形量较小。随射流速度的增大，开沟圆盘硬度及变形量均增...
Saved in:
| Published in | 农业工程学报 Vol. 30; no. 22; pp. 21 - 29 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国农业大学工学院,北京,100083
2014
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2014.22.003 |
Cover
| Abstract | 针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行数值模拟，分析了射流阵列参数（喷嘴间距、喷嘴直径和射流速度）对淬火结果的影响，并对工艺参数的优选数值进行了试验验证，二者显示了较好的一致性。结果表明：喷嘴间距是关键工艺参数，当喷嘴间距取4～5 mm时，开沟圆盘可以整体淬透，硬度达到45～49 HRC。开沟圆盘的变形量与喷嘴间距呈抛物线关系，当喷嘴间距取5～6 mm时，变形量达到最大值1.80×10^-2～3.30×10^-2 mm，淬透后变形量较小。随射流速度的增大，开沟圆盘硬度及变形量均增加，当射流速度为1～6m/s时，增幅较大，当射流速度＞6 m/s时，增幅趋缓。在喷嘴直径为4～12 mm范围内，开沟圆盘硬度及变形量均随喷嘴直径加大而增加。优化后的工艺参数为：喷嘴间距为4～5 mm,喷嘴直径为6～8 mm，射流速度为3～6 m/s；此时，开沟圆盘硬度可达45～49 HRC，变形量为1.28×10^-2～2.49×10^-2 mm。 |
|---|---|
| AbstractList | TG156.34; 针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行数值模拟，分析了射流阵列参数（喷嘴间距、喷嘴直径和射流速度）对淬火结果的影响，并对工艺参数的优选数值进行了试验验证，二者显示了较好的一致性。结果表明：喷嘴间距是关键工艺参数，当喷嘴间距取4～5 mm时，开沟圆盘可以整体淬透，硬度达到45～49 HRC。开沟圆盘的变形量与喷嘴间距呈抛物线关系，当喷嘴间距取5～6 mm时，变形量达到最大值1.80×10-2～3.30×10-2 mm，淬透后变形量较小。随射流速度的增大，开沟圆盘硬度及变形量均增加，当射流速度为1～6m/s时，增幅较大，当射流速度＞6 m/s时，增幅趋缓。在喷嘴直径为4～12 mm范围内，开沟圆盘硬度及变形量均随喷嘴直径加大而增加。优化后的工艺参数为：喷嘴间距为4～5 mm,喷嘴直径为6～8 mm，射流速度为3～6 m/s；此时，开沟圆盘硬度可达45～49 HRC，变形量为1.28×10-2～2.49×10-2 mm。 针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行数值模拟，分析了射流阵列参数（喷嘴间距、喷嘴直径和射流速度）对淬火结果的影响，并对工艺参数的优选数值进行了试验验证，二者显示了较好的一致性。结果表明：喷嘴间距是关键工艺参数，当喷嘴间距取4～5 mm时，开沟圆盘可以整体淬透，硬度达到45～49 HRC。开沟圆盘的变形量与喷嘴间距呈抛物线关系，当喷嘴间距取5～6 mm时，变形量达到最大值1.80×10^-2～3.30×10^-2 mm，淬透后变形量较小。随射流速度的增大，开沟圆盘硬度及变形量均增加，当射流速度为1～6m/s时，增幅较大，当射流速度＞6 m/s时，增幅趋缓。在喷嘴直径为4～12 mm范围内，开沟圆盘硬度及变形量均随喷嘴直径加大而增加。优化后的工艺参数为：喷嘴间距为4～5 mm,喷嘴直径为6～8 mm，射流速度为3～6 m/s；此时，开沟圆盘硬度可达45～49 HRC，变形量为1.28×10^-2～2.49×10^-2 mm。 |
| Abstract_FL | The disk opener is the key part of no-tillage planter and belongs to the ultrathin component. The ratio of its diameter and thickness is over 100. It is prone to end up with large deformations during the quenching process. Thus, how to reduce the deformation through optimizing the quenching parameters under the premise of achieving martensite and high hardness property is both a meaningful and challenging subject. In this paper, a new method of water jet impingement was proposed to quench the disc opener. The finite element analysis software DEFORM had been utilized to simulate the water jet impingement quenching process of the disc opener and optimize the quenching parameters. The velocity of the jet current, nozzle diameter and nozzle spacing had been selected as the process parameters of water jet impingement quenching. The control variable method was used to analyze the influence of the quenching parameter. Five levels of each jet array parameter were designed and the influences on the disc opener’s hardness and flatness were simulated by DEFORM. The results show that:The nozzle spacing exerts significant influence on hardness and deformation. With the decrease of the nozzle spacing, nozzles above the disc opener become dense. At the same time, the direct heat transfer area expands and the cooling speed enlarges to achieve high hardness. The disc opener can be fully hardened and achieve the highest hardness as nozzle spacing is 4-5 mm. On the other hand, with the increase of the nozzle spacing the cooling uniformity increases first and then decreases. The deformation shows a parabola relationship with nozzle spacing and the maximum deformation reaches 1.80×10-2-3.3×10-2 mm when nozzle spacing values are 5-6 mm;as the jet velocity and nozzle diameter increase, the cooling intensity and cooling speed are improved. The disc opener’s hardness and deformation increase obviously with the rise of the jet velocity under various combinations of the nozzle diameter and nozzle spacing. But the increase is not obvious when the jet velocity exceeds 6 m/s; The disc opener’s hardness and deformation show a sustainable growth at the value range (nozzle diameter is 4-12 mm) of the nozzle diameter. However, an oversize nozzle diameter can induce excessive water stagnated on the disc opener’s surface. During the actual quenching process, increasing the water spray quantity merely cannot acquire a high heat transfer coefficient; it should be integrated with other economic evaluation to select the appropriate nozzle diameter. Finally, a set of devices for water jet impingement quenching has been designed in this research and it has been utilized to conduct the experiment to confirm the simulation results. Hardness and flatness are measured and the experiment results show good consistency with the numerical simulation. It indicates that it is feasible to simulate the water jet impingement quenching of the disc opener. Considering the simulation results and engineering reality, the optimized water jet parameters are:jet velocity is 3-6 m/s,nozzle diameter is 6-8 mm, nozzle spacing is 4-5 mm. Under these parameters, the hardness of the quenched disk opener is 45-49HRC and the flatness is 1.28×10-2-2.49×10-2 mm. |
| Author | 刘敬 熊绍平 李洪文 徐杨 凌刚 |
| AuthorAffiliation | 中国农业大学工学院,北京100083 |
| AuthorAffiliation_xml | – name: 中国农业大学工学院,北京,100083 |
| Author_FL | Li Hongwen Liu Jing Xu Yang Ling Gang Xiong Shaoping |
| Author_FL_xml | – sequence: 1 fullname: Liu Jing – sequence: 2 fullname: Xiong Shaoping – sequence: 3 fullname: Li Hongwen – sequence: 4 fullname: Xu Yang – sequence: 5 fullname: Ling Gang |
| Author_xml | – sequence: 1 fullname: 刘敬 熊绍平 李洪文 徐杨 凌刚 |
| BookMark | eNo9j8tKw0AYhWdRwVr7EiK4SvxnJpnJLKXUCxTcdF-SSVJTdKoNot21oIKXIggFwUJxIYoXLKIUSl8n0_oWRiquDnx8nMNZQBlVVwFCyxhMKphYrZlRHCsTAxCDOViYBLBlEmIC0AzK_vN5lI_jyAMbUw5g4SwqJqedaaurb94mjx3dGyXjlv7oJ72zyd2tHnwmgxP91dbD10n7JRk-TM9HujtIWmP9dK8v-8n1xffz1fS9vYjmQnc3DvJ_mUPl9WK5sGmUtje2CmslQ9qCGr6wmC8cx5WEAwFOgTAZYp_SlIEXOgEhRHLOAumB71tSWthmNvcp9kLq2DSHVma1R64KXVWt1OqHDZUOVlSzKo-939eEpJ9Tc2lmyp26qh5EqbvfiPbcRrPCGKXc4ljQH_HRdDQ |
| ClassificationCodes | TG156.34 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| Copyright_xml | – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| DBID | 2RA 92L CQIGP W95 ~WA 2B. 4A8 92I 93N PSX TCJ |
| DOI | 10.3969/j.issn.1002-6819.2014.22.003 |
| DatabaseName | 维普_期刊 中文科技期刊数据库-CALIS站点 中文科技期刊数据库-7.0平台 中文科技期刊数据库-农业科学 中文科技期刊数据库- 镜像站点 Wanfang Data Journals - Hong Kong WANFANG Data Centre Wanfang Data Journals 万方数据期刊 - 香港版 China Online Journals (COJ) China Online Journals (COJ) |
| DatabaseTitleList | |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Agriculture |
| DocumentTitleAlternate | Numerical simulation and experimental verification on water impinging jet quenching process of no-till planter disc opener |
| DocumentTitle_FL | Numerical simulation and experimental verification on water impinging jet quenching process of no-till planter disc opener |
| EndPage | 29 |
| ExternalDocumentID | nygcxb201422003 663374719 |
| GrantInformation_xml | – fundername: “十二五”农村领域国家科技计划课题 funderid: (2011BAD20B01) |
| GroupedDBID | -04 2B. 2B~ 2RA 5XA 5XE 92G 92I 92L ABDBF ABJNI ACGFO ACGFS AEGXH AIAGR ALMA_UNASSIGNED_HOLDINGS CCEZO CHDYS CQIGP CW9 EOJEC FIJ IPNFZ OBODZ RIG TCJ TGD TUS U1G U5N W95 ~WA 4A8 93N ACUHS PSX |
| ID | FETCH-LOGICAL-c593-d946d988ac2702073026cf1d3388a0bf8e222c776ecb0dd4cc415657d31bf3853 |
| ISSN | 1002-6819 |
| IngestDate | Thu May 29 04:04:18 EDT 2025 Wed Feb 14 10:30:46 EST 2024 |
| IsPeerReviewed | false |
| IsScholarly | true |
| Issue | 22 |
| Keywords | agricultural machinery water impinging jet disc opener 淬火 水冲击射流 开沟圆盘 数值分析 numerical analysis quenching 农业机械 |
| Language | Chinese |
| LinkModel | OpenURL |
| MergedId | FETCHMERGED-LOGICAL-c593-d946d988ac2702073026cf1d3388a0bf8e222c776ecb0dd4cc415657d31bf3853 |
| Notes | agricultural machinery;quenching;numerical analysis;water impinging jet;disc opener Liu Jing, Xiong Shaoping, Li Hongwen, Xu Yang, Ling Gang （College of Engineering, China Agricultural University, Beijing 100083, China） 11-2047/S The disk opener is the key part of no-tillage planter and belongs to the ultrathin component. The ratio of its diameter and thickness is over 100. It is prone to end up with large deformations during the quenching process. Thus, how to reduce the deformation through optimizing the quenching parameters under the premise of achieving martensite and high hardness property is both a meaningful and challenging subject. In this paper, a new method of water jet impingement was proposed to quench the disc opener. The finite element analysis software DEFORM had been utilized to simulate the water jet impingement quenching process of the disc opener and optimize the quenching parameters. The velocity of the jet current, nozzle diameter and nozzle spacing had been selected as the process parameter |
| PageCount | 9 |
| ParticipantIDs | wanfang_journals_nygcxb201422003 chongqing_primary_663374719 |
| PublicationCentury | 2000 |
| PublicationDate | 2014 |
| PublicationDateYYYYMMDD | 2014-01-01 |
| PublicationDate_xml | – year: 2014 text: 2014 |
| PublicationDecade | 2010 |
| PublicationTitle | 农业工程学报 |
| PublicationTitleAlternate | Transactions of the Chinese Society of Agricultural Engineering |
| PublicationTitle_FL | Transactions of the Chinese Society of Agricultural Engineering |
| PublicationYear | 2014 |
| Publisher | 中国农业大学工学院,北京,100083 |
| Publisher_xml | – name: 中国农业大学工学院,北京,100083 |
| SSID | ssib051370041 ssib017478172 ssj0041925 ssib001101065 ssib023167668 |
| Score | 2.0570512 |
| Snippet | 针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行数值模拟，... TG156.34; 针对免耕播种机开沟圆盘整体淬火后硬度不足且易翘曲变形的问题，该文提出一种水冲击射流淬火方法，利用DEFORM软件对开沟圆盘淬火过程中的硬度和翘曲变形量进行... |
| SourceID | wanfang chongqing |
| SourceType | Aggregation Database Publisher |
| StartPage | 21 |
| SubjectTerms | 农业机械 开沟圆盘 数值分析 水冲击射流 淬火 |
| Title | 免耕播种机开沟圆盘水射流淬火工艺数值模拟及验证 |
| URI | http://lib.cqvip.com/qk/90712X/201422/663374719.html https://d.wanfangdata.com.cn/periodical/nygcxb201422003 |
| Volume | 30 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| journalDatabaseRights | – providerCode: PRVEBS databaseName: EBSCOhost Academic Search Ultimate issn: 1002-6819 databaseCode: ABDBF dateStart: 20140101 customDbUrl: https://search.ebscohost.com/login.aspx?authtype=ip,shib&custid=s3936755&profile=ehost&defaultdb=asn isFulltext: true dateEnd: 99991231 titleUrlDefault: https://search.ebscohost.com/direct.asp?db=asn omitProxy: true ssIdentifier: ssj0041925 providerName: EBSCOhost – providerCode: PRVALS databaseName: IngentaConnect Open Access Journals issn: 1002-6819 databaseCode: FIJ dateStart: 20090101 customDbUrl: isFulltext: true dateEnd: 20151231 titleUrlDefault: http://www.ingentaconnect.com/content/title?j_type=online&j_startat=Aa&j_endat=Af&j_pagesize=200&j_page=1 omitProxy: true ssIdentifier: ssj0041925 providerName: Ingenta |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnR1Na9VAcKktiB7ET1qr0kP3-OpLskl2j7t5eRQPnir09kg2yevpVfsB2lMLKvhRBKEgWCgeRPEDiyiF0r-TtP4LZ_bFJJTiFzxC3uzszOxONjM7zE4ImRZZlNmprVtMZ0mLRTGsudhKW76OUtePktiOTZbvbW_2Drs1786PnFpuZC2trsQzeu3EcyX_o1WAgV7xlOw_aLYiCgC4B_3CFTQM17_SMQ1dyuHXoSE3KQsuDT0qbCoB4lPpmyaABFRJRFYBogFE2VR0EQJN3ENkoajgpqlNFTPIbcqZgQALy9wAzQCR4a9UBgcgruEuDAsPZYCOKFgb2QFEcipNd65KprxLOSALKiXlAXaXALGajrJBM5KHjCpOhWyw85EmNwLASKVniEto-vX4mN68HBBIVBeYNNIbbLhRykwQ0AXpnRoF-nQoD82QGQqJEOjkN-mrkIp2iSt5M3pi1XHTUnppuMAUq87JA5MMtVWPpxpqBRFUwHzZsCQMhYAK31CQqBI7sIyb2zAxaIM8XhqK4eoaHs2ubEjDGxmGg47bOUd4wtg5pDhTUcRMRTZjYwlap7bvVdbl4EFf348Rxx5WyB2zfXDPRsmYVB3Vrb1oCwMF1WvexmIJXr0rdS0Hv4lQZVJhHoFrkgpKMU6T6VLGm7-TEKuZLCwO-vfARzNH5gZZNOg3vLu58-RcuS2bksM1doGMrC1cJGdlf6ksTZNeImH-aPNofat4-fnw3WaxvZ8frBdfd_Ltx4evXxW73_Ldh8X3jWLv0-HGx3zv7dGT_WJrN18_KN6_KZ7t5C-e_vjw_OjLxmUy1w3ngtlW-RGSlnaF00oE8xLBeaTx4CbaQ9vTmZU4DsDaccZTcLC173upjttJwrTGiIjrJ44VZw74wlfI6GBxkI6TKS_WbuIyX9sM9vAp7Jyy1E0ZY17sOFHmT5DJaj56d4e1ZnqwIXAwbiQmyFQ5Q73yDbTcO6bQq39GmSRn8H4YQ7xGRleWVtPr4FWvxDfKp-Anf16f4g |
| linkProvider | EBSCOhost |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E5%85%8D%E8%80%95%E6%92%AD%E7%A7%8D%E6%9C%BA%E5%BC%80%E6%B2%9F%E5%9C%86%E7%9B%98%E6%B0%B4%E5%B0%84%E6%B5%81%E6%B7%AC%E7%81%AB%E5%B7%A5%E8%89%BA%E6%95%B0%E5%80%BC%E6%A8%A1%E6%8B%9F%E5%8F%8A%E9%AA%8C%E8%AF%81&rft.jtitle=%E5%86%9C%E4%B8%9A%E5%B7%A5%E7%A8%8B%E5%AD%A6%E6%8A%A5&rft.au=%E5%88%98%E6%95%AC&rft.au=%E7%86%8A%E7%BB%8D%E5%B9%B3&rft.au=%E6%9D%8E%E6%B4%AA%E6%96%87&rft.au=%E5%BE%90%E6%9D%A8&rft.date=2014&rft.pub=%E4%B8%AD%E5%9B%BD%E5%86%9C%E4%B8%9A%E5%A4%A7%E5%AD%A6%E5%B7%A5%E5%AD%A6%E9%99%A2%2C%E5%8C%97%E4%BA%AC%2C100083&rft.issn=1002-6819&rft.issue=22&rft.spage=21&rft.epage=29&rft_id=info:doi/10.3969%2Fj.issn.1002-6819.2014.22.003&rft.externalDocID=nygcxb201422003 |
| thumbnail_s | http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fimage.cqvip.com%2Fvip1000%2Fqk%2F90712X%2F90712X.jpg http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fnygcxb%2Fnygcxb.jpg |