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   伴随着工信部《机械基础零部件产业振兴实施方案》的颁布和去年底工程机械高端液压件协同工作平台筹备机构成立,中国对液压件等工程机械核心零部件的专项攻坚战进入实质性的阶段。中国液压气动密封件工业协会理事长沙宝森表示,改变液压件长期受制于人的局面,实现主机与配套同期发展将为中国机械产业带来新的发展机遇。 

  核心部件受制于人 

  改革开放三十年来,中国企业在工程机械各个细分领域几乎都实现在国内市场占据主导地位,但是液压件、发动机、电控系统三大核心零部件技术的缺失一直制约着中国工程机械产业大?#38454;?#21521;国际市场,并造成中国工程机械产业长期大而不强的局面,使中国工程机械产业超过七成的利润被国外零部件巨头攫取。 

  沙宝森认为,进口零部件不仅占据了工程机械整机成本较大的比重,而?#19968;?#20351;这些关键部件的及时供应已经严重影响到中国工程机械企业的正常生产经营活动。

   在工程机械液压件、发动机、电控系统三大核心零部件中,液压件技术是中国工程机械企业发展的最大瓶?#20445;?#22312;挖掘机高压大流量液压装置方面,国内挖掘机零部件企业的产品还难以满足国内挖掘机主机企业的配套要求,于是挖掘机核心零部件大量依赖进口,还吞噬了我国挖掘机行业大部分的利润。

   中国的国产液压件零部件技术薄弱,与世界知名品牌同台竞技时明显处于下风,于是在国内工程机械行业就有“得铸造者得液压,得液压者得天下”的说法。 

  上世纪九十年代,徐工集团走“市场换技术”路线,与美国工程机械巨头卡特彼勒在山东组建挖掘机合资公司,但由于技术消化和创新较慢,在液压件技术方面难有较大的技术突破。于是徐工集团通过并购的方?#36739;?#26395;实现技术突围,先后?#23637;?#20004;家拥有高端液压件制造核心技术的?#20998;?#20225;业。

   当前,跨国巨头德国力士乐公司在全球液压件产品的销售额超过了中国液压行业的总产值,凸显出中国液压技术与国外的巨大差距。为了控制中国市场,力士乐公司给中国企业的供货周期为88周,这就意味着中国企业现在要决定2013年的液压产品采购量。在工程机械行业市场变化很大的情况下,这样的霸王条款意味着中国企业要?#32422;撼械?#24040;大的市场风险。在2008年金融危机导致市场萎缩?#20445;?#21147;士乐公司却要求中国企业在4个月内必须提货,逾期不提者定金不退。当液压产品供应不足?#20445;?#21147;士乐公司?#20540;?#26041;面延期?#25442;酰?#33258;行决定少量的补偿金额。这导致中国工程机械行业在关键部件上都有一?#30452;弧?#21345;脖子”的挫败感。

   产业联合是正途 

  不仅是液压部件,高铁设备中的轴承,煤机产业中的高端齿轮传动装置,轿车覆盖件模具等有严重依赖进口。 

  由于液压件、轴承、齿轮、模具等是装备制造业中的重要零部件,我国关键基础件依赖进口严重制约了中国工程机械企业大力开拓国际市场。在去年工信部印发的《机械基础件、基础制造工艺和基础材料产业“十二五”发展规划》,我国提出通过五年时间的努力,我国机械基础件、基础制造工?#21344;?#22522;础材料产业(简称“三基”)创新能力将明显增强,加工制造水平显着提高,能基本满足重大装备的发展需要,产业发展严重滞后的局面得到改观。国际将加大对已有轴承、齿轮、液压件、气动件、密封件、链与链轮、紧固件、弹簧、模具、基础材?#31995;?#20135;业集聚区的支持和指导,培育少数优势企业。 

  沙宝森表示,过去我国液压件行业发展技术积累不够,现在在液压件和液气密领域,我国已有项目的投资也在百亿元以上,但是国内液气密行业都忙于在产品的中低端市场上厮?#20445;?#20135;品同质化难以拉开档?#21361;?#38656;要国?#19994;?#25919;策引导,主机企业和国内基础件企业结成联盟,走联合重组之路,有规模才能?#34892;?#30410;。

   如果基础件企业参与主机产品开发过程,全面了解主机的技术发展要求和工艺要求。而主机企业积极支持国产基础件,对基础企业新产品的寿命试验提供时间、机器?#32479;?#22320;等。二者在产业链上下游实现深度合作,才能和国外企业的竞争中取得优势。

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