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传统汽车用钢的强塑积在10~20GPa•%的水平,已经不能满足汽车工业对轻量化和高安全性的双重要求。本项目集中研发了强度780~1200MPa、强塑积20GPa•%以上的新型高强韧汽车用钢,主要包括淬火配分(Q&P)钢、超细晶相变诱导塑性(Nano-TRIP)钢、TRIP-Dual钢和超级贝氏体(TBF)钢等。
本项目系统提出了新一代高强韧性汽车用钢的制备与应用技术方案,包括系列产品的合金与组织设计、冶金工艺的实验研究和现场优化,以及符合最终产品需求的成形技术指标(如常规成形性能指标、抗回弹性能、抗疲劳性能以及高速变形条件下的碰撞吸收能等)。
应用领域和范围:
该项目产品主要应用于制造汽车车身零部件,例如汽车前、后保险杠、A/B/C柱、车顶构架、车底框架以及车门内板、车门防撞杆等对碰撞要求较高的部件等。
应用情况:
本项目产品均已完成中试,部分品种的退火钢板经过汽车零部件冲压实验,成形性能良好,零部件减薄和减轻效果显著,应用前景广阔。
技术优势:
传统汽车用钢的强塑积一般在10-20GPa•%以下,已经不能满足汽车轻量化发展的需求,而TWIP钢、奥氏体不锈钢等第二代先进高强钢的强塑积虽然能够达到了60GPa•%,但其成本很高且冶金生产困难较大。二者在发展上均受到严重的技术性或经济性限制。
针对以上汽车钢发展所遇到的问题,本项目综合采用“多相,亚稳,多尺度”组织调控技术,对低成本C-Mn钢进行逆相变,获得超细组织和一定量残余奥氏体,同时在制备过程中构成多相组织(铁素体、贝氏体和马氏体)并使其超细化,既使材料的强塑积提高至20GPa•%以上,又使得材料保持了良好的成形性指标。
本项目的技术创新点主要有三项:
(1) 高强韧钢的“多相、亚稳、多尺度”微观组织调控理论 利用非平衡亚稳组织和晶粒超细化的指导思想,优化成分设计,通过研究C、Mn等元素的富集与配分规律,探索全新的组织调控与制备技术,充分发挥超细晶强韧化以及高体积分数残留奥氏体的相变增塑效应,实现超细晶亚稳组织超高强钢的制备。
(2) 高强钢形变回弹机理研究与工艺控制 开展高强汽车用钢的成形性能(杯突、扩孔等)、疲劳性能以及裂纹扩展机制研究,建立完整的高强汽车用钢的使用数据库。结合产品在部件中的应用,开展成形过程中回弹的模拟研究,实现对用户工艺优化、材料选择的技术支持和数据储备。
(3) 汽车用钢的动态变形特性研究与机理分析 对高强韧性汽车钢开展不同应变率下动态变形行为实验研究。通过准静态拉伸实验、高速拉伸实验等,获得不同应变率下的典型产品的拉伸应力应变曲线,对应变率对屈服应力的影响进行深入研究。建立数据库,提供用户亟需的相关数据和技术。
主要技术指标:
总的来说,各产品的抗拉强度为780~1200MPa,强塑积达20GPa•%以上,且材料具有良好的成形和焊接工艺性能。根据市场需求,产品的主要力学性能指标优化组合: 淬火配分(Q&P)钢:屈服强度Rp0.2≥600MPa, 抗拉强度Rm≥980MPa,延伸率A80≥20%; 超细晶TRIP钢:屈服强度Rp0.2≥650MPa ,抗拉强度Rm≥980MPa,延伸率A80≥18%; TRIP-Dual钢:屈服强度Rp0.2≥500MPa, 抗拉强度Rm≥780MPa,延伸率A80≥30%; 超级贝氏体钢:屈服强度Rp0.2≥850MPa ,抗拉强度Rm≥1150MPa,延伸率A80≥18%。
自我评价及效益分析:
本项目涉及到的高强韧性先进高强度钢能够克服产业化障碍,大幅度、大规模地推动车身轻量化和节能减排,对我国整个国民经济发展和环境保护具有重大意义。采用本项目中的新型汽车用钢,可减轻汽车零部件重量10-20%以上,同时大幅度提高汽车安全性和使用寿命周期。对钢厂而言,新型的强塑积20Gpa•%级以上的高强韧性汽车钢的商业化供应,其吨钢盈利率较之传统的先进高强钢(以780MPa级以下的DP钢为例)可提高2-4倍。

为维护中技网平台交易秩序,保护技术需求方合法权益,本人(本单位)特做出以下承诺和声明:
一、本人(本单位)专利技术是经国家知识产权局审定认可,并取得了该项知识产权的专利证书,信息真实,技术可靠,无知识产权纠纷。
二、本人(本单位)愿意根据《中华人民共和国合同法》、《中华人民共和国专利法》、《中华人民共和国知识产权保护法》和《中华人民共和国促进科技成果转化法》以及中技网平台制定的技术转移交易规则和制度进行规范交易,自觉维护技术转移网络交易秩序。
三、如本人(本单位)在技术转移转化过程中有严重违规违约行为,给平台和交易相对方造成经济或财产损失,本人(本单位)愿意承担相应责任。

For maintenance or web platform trading order, protect the legal rights of the technical demand (units), make the following commitment and declaration:

1I (unit) patent technology is approved by the state intellectual property office and obtained the patent certificate of this intellectual property, the information is true, the technology is reliable, and there is no intellectual property dispute.

2, I (unit) willing to according to the law of the People's Republic of China contract law ", "patent law of the People's Republic of China, the intellectual property rights of the People's Republic of China protects a law" and "promote the conversion of scientific and technological achievements of the People's Republic of China" and wowed net platform to develop the trading rules and the system of technology transfer of regulate transactions, consciously safeguard the order of the technology transfer network transactions.

3.If I (unit) in the process of the transformation of technology transfer has seriously violated the breach, to economic or property damage caused by platform and trade each other, I (the unit) are willing to bear the corresponding legal responsibility.

交易规则说明

1、转让方在委托服务商转让期间,首先要认真阅读中技网会员协议和技术商品交易规则,其次要了解中技网有关收费标准,清楚应当遵守的相关权利和义务

2、购买方在中技网平台上认定购买某一项技术商品前,需要按照规定向中技网平台支付定金(完成意向性购买),但知识产权归属以及何时能够使用该项知识产权,视买卖双方协商确定后才能够使用,在此之前,建议您不要使用或侵犯他人的知识产权。

3、本网站对上传在首页各版块展示出售的技术产品实行有偿服务原则,对拟出售的专利技术产品交易价格以及市场前景,中技网将根据财政部无形资产评估有关标准和规定给予客观、公正的评价,具体收费标准请咨询客服人员。

1, the assignor in commissioned services during the transfer, the first thing to read or member agreement and the technical commodity trading rules, second to understand relevant charge standard or network platform, which shall comply with the relevant rights and obligations.

2, the purchaser on or network platform, decided to buy a certain technology products before, need to pay a deposit in accordance with the relevant provisions to or net platform (complete intentional purchase), but the intellectual property ownership and when to be able to use the intellectual property rights, after the negotiation between the buyers and sellers can use, before that, it is recommended that you do not use or infringe others' intellectual property.

3, this website to upload on the home page of each section shows the sale of products shall be paid for the service principle, to plans to sell the patent technology of the product market price and the market prospects, or network will according to the ministry of finance of intangible assets evaluation of relevant standards and regulations to give an objective and fair evaluation, specific charge standard, please consult customer service staff.

交易流程

根据中技网交易规则,技术买卖双方应当遵循友好、自愿和有偿原则进行交易,为此,请技术买卖双方应当遵循中技网制定的交易流程进行有序买卖。
一、买方确定购买意向→支付定金→签订意向性购买协议→买卖双方签订正式协议→买方付款 →办理技术转移交割手续→资金结算→交易完成→退还定金。

二、卖方提交信息资料→上传有效证明文件→平台审核→与平台签订相关协议和信用保证金协议→缴纳信用保证金→平台发布出让信息→确定买家→签订协议→出让技术→资金结算→交易完成→退还信用保证金。

    According to trading rules or network technology between buyer and seller shall follow the principle of friendly, voluntary and paid, for this, please technology between buyer and seller shall follow the wowed the orderly sale network of trading process.

One, the buyer to determine the purchase intentions to pay the deposit, intentional purchase agreement to sign a formal agreement between the seller and the buyer, the buyer's payment to delivery technology transfer formalities, fund settlement - deal - return deposit.

Second, the seller submit information to upload valid documents to review platform, and platform signed the relevant agreement and credit margin agreements to pay credit deposit, platform release transfer information to determine the buyer, signed an agreement to transfer technology, funds and settlements - deal - the refund credit deposit

重要提示

1、技术转让方请务必遵守《中华人民共和国合同法》、《中华人民共和国专利法》、《中华人民共和国知识产权法》、《中华人民共和国促进科技成果转化法》等相关法律法规,诚实守信,不得伪造或提供虚假技术信息。

2、技术购买方在决定购买技术商品前,首先要了解中技网的有关交易流程和技术转让方的详细信息,在购买过程中对有关技术信息产生疑问或不清楚的地方,请随时与技术信息发布单位取得联系。

3、中技网作为市场化运作的专业技术买卖服务平台,由中国技术市场协会主办,是国内权威的专业技术交易分类信息网,专业、专注、权威,面向国内外发布技术转让和技术需求项目信息,服务周到,信誉第一,交易规范,请客户认准中技网官方网址,切勿上当受骗。

1, technology transferor please be sure to abide by the law of the People's Republic of China contract law ", "patent law of the People's Republic of China" and "intellectual property law of the People's Republic of China", "promote the conversion of scientific and technological achievements of the People's Republic of China" and other relevant laws and regulations, the honest code of honor, are not allowed to fake or providing false information technology.

2 the purchaser prior to the decision to buy technology goods, technology, the first thing to understand the assignor or network related transaction process and technology of detailed information, in the process of buying to doubt the related technical information or unclear, please feel free to get in touch with technical information release unit.

3, or as a market-oriented operation of professional technology trading service platform, sponsored by the China technology market association, is the domestic authority of professional technology trading classified information network, professional, dedicated, authority, and the release technology transfer and technology at home and abroad demand project information, service, credit first, trade specification, please customers look or net official web site, please do not be deceived.

郑重声明

  会员在服务期内私自线下与相对交易方进行交易,由当事人自行承担法律后果,所产生的经济或知识产权纠纷中技网不承担任何法律责任。

Membership in the service period to offline, transacting business with relatively by the parties to bear the legal consequences, economic or intellectual property rights disputes or generated by the network does not assume any legal liability.

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