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我国有望成为全球机械再制造产业中心
发布日期:2024-02-07
中国近些年来科学技术突飞猛进,制造业相比前些年有了质的飞跃。在再制造领域,我国渐渐做大。
    再制造主要分为
5个环节:工程机械拆解、工程机械零部件清洗、工程机械零部件的检测和寿命评估、工程机械零部件的修复和再制造、工程机械零部件的组装。
值得一提的是成熟的再制造工艺在每个阶段都运用了科学的技术手段保证最终再制造产品的产品质量与性能。仅以再制造过程中的最重要两个环节为例。在工程机械零部件的检测和寿命评估环节,再制造企业将金属磁记忆技术用于废旧零件的剩余寿命评估的探索研究。
该技术基于铁磁性材料的磁致伸缩效应,利用地磁场环境中铁磁材料具有磁畴结构和自发磁化的特点,当外力作用于铁磁材料,会引起材料中磁畴的变化,变化会以漏磁场的形式被记忆,外力消除后仍然保留。通过对记忆内容的检测,即可知应力集中和宏微观裂纹,实现损伤早期诊断和寿命评估。
在工程机械零部件的修复和再制造环节,再制造企业会将废旧零部件进行修复和再制造,并进行相关的测试、升级,使其性能能够满足使用要求。在这过程中表面工程技术(包括纳米表面工程技术和自动化表面工程技术)是最为核心的关键技术。
自从上个世纪末的1999年中国出现了再制造这个概念,政府逐年都在重视再制造产业。2005年,国务院发布《关于做好建设节约型社会近期重点工作的通知》和《国务院关于加快发展循环经济若干意见》均指出:支持废旧机电产品再制造”.在《十一五规划纲要》中明确要求大力发展再制造。在去年国务院印发的《十二五节能环保产业发展规划》中,圈定了重大节能技术与装备产业化、海水淡化产业基地建设、节能环保服务业培育等节能环保领域的八大重点工程。其中一条就是再制造产业化工程,支持汽车零部件、工程机械、机床等再制造,完善可再制造旧件回收体系,重点支持建立5-10个国家级再制造产业集聚区和一批重大示范项目。
随着中国工业化进程的加快和人民生活水平的提高,机电产品制造业快速发展,同时也将产生大量的废旧机电产品,这为再制造产业发展创造了条件。金模机械网首席信息官罗百辉表示,当前国内工程机械的市场保有量已超过500万台,到2015年,工程机械年销量将达到100万台以上。按照机械设备的寿命周期,预计到2020年,每年的工程机械报废台量预计将高达120万台。另外,机械设备单件来看,工程机械零部件单位价值高,修复价值大。这些内在因素都将驱动再制造产业在我国发展。
随着国内工程机械的市场保有量的继续增长,需要进行再制造修复的机械也会越来越多。加之,国家对于工程机械再制造产业的关注和支持,许多配套的政策法规都将陆续出台,而国际化的交流又将进一步提升我国工程机械企业的再制造技术,届时,中国必将真正成为世界上最重要的再制造中心之一。作为世界上最大的工程机械量保有国我国工程机械再制造产业市场潜力不可估量。
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  14. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `is_recommend` = 1 ORDER BY `id` DESC LIMIT 0,4 [ RunTime:0.003514s ]
  15. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `is_recommend` = 0 ORDER BY `id` DESC LIMIT 0,10 [ RunTime:0.000378s ]
  16. SHOW FULL COLUMNS FROM `zzw_news_cat` [ RunTime:0.001282s ]
  17. SELECT * FROM `zzw_news_cat` WHERE `parent_id` = 0 AND `deltime` = '' [ RunTime:0.000319s ]
  18. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 [ RunTime:0.022228s ]
  19. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 ORDER BY `id` DESC [ RunTime:0.025481s ]
  20. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 [ RunTime:0.005721s ]
  21. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 ORDER BY `id` DESC [ RunTime:0.006383s ]
  22. SELECT * FROM `zzw_config` WHERE `id` = 2 LIMIT 1 [ RunTime:0.000498s ]
0.110697s