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   特殊阀类
   轻型蝶阀  ·防爆阀FBF
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   电液动扇形 ·螺旋闸门
   高温闸门  ·棒条式闸阀
 
电磁阀
中国的阀门与国外阀门的区别
2011-4-29 9:23:14

中国阀门行业虽然近年来发展速度较快。产品技术含量低,但行业的整体水平仍低。许多参数高的关键阀门还依赖进口。有专家估计,中国阀门水平与国外先进国家相比仪表阀组要落后 10~20 年。前不久,中国阀门行业为加强与欧洲阀门制造行业的交流,先后组织了国内气动管路球阀 10 余家阀门我产品技术含量低,许多参数高的关键阀门还依赖进口。有专家估计,国阀门水平与国外先进国家相比要落后 10~20 年。前不久,中国阀门行业为加强与欧洲阀门制造行业的交流,先后组织了国内气动管路截止阀 10 余家阀门企业的老总出访欧洲,学到许多国外同行的可贵经验,同时与国外阀门行业相比,也看到自身的缺乏。加工工艺上的差异 焊接工艺上,德国 KSB 公司为满足核级阀门的密封资料抗辐射的中央空调专用阀要求,已广泛采用特殊焊粉进行无钴焊接;法国威兰阀门公司将焊前预热、自动焊接、焊后处理在同一设备或同一条加工生产线上完成,无论焊前、焊中、焊后处理,温度都可以实现自动控制,保证焊接质量。而国内在阀门焊接上工艺落后,有的还采用陈旧的焊接方法,焊工技术水平低,所焊材料也是普通资料,达不到特殊阀门设计要求。好多企业整天忙于产销,很少在氧气专用阀铜阀门 工艺上进行钻研改进。模锻件新工艺的运用上,德国 KSB 公司生产阀门材质以耐高温合金钢 F91 F22 为主,而高压阀门又以锻造件为主,保证了产品的可靠性和经济性。对批量较大的 600Lb 以下的闸阀采用模锻,并进行焊接,阀门没有因铸造而造成气孔、疏松等诸多缺陷,并大大减少自由锻的资料浪费,经济性大为提高。而国内行业阀门毛坯件大都以铸造件多,采用模锻的很少, 600Lb 以下压力高的阀门模锻更可谓凤毛麟角。这方面好多企业为了减少本钱,大都采用铸钢件,低压的采用铸铁件多,材质利息低,加工工艺简单。

Domest enterpris and foreign valv valv gap analysi of enterpris 由中国电动阀门网提供的阀门行业新闻, < Domest enterpris and foreign valv valv gap analysi of enterpris 由中国电动阀门网提供的阀门行业新闻。 < Domest enterpris and foreign valv valv gap analysi of enterpris 由中国电动阀门网提供的阀门行业新闻。译文仅供参考。另外,中国电动阀门网还提供相关产品搜索:电动球阀、电动蝶阀 电动闸阀、电动截止阀、电动隔膜阀、电动调节控制阀、电动执行器与附件、电动阀门价格、更多电动阀门产品、等。

 

译文:

In recent years. the develop of faster, China' valv industry. but still low overal level of the industry, product with low technolog content, and mani kei paramet of high valv also imported. Some expert estim that the level of our valves, compar with foreign advanc countri to be down by 10 to 20 years. Not long ago, to strengthen the valv manufactur industri and the European exchanges, ha organ more than 10 domest valv industri in China Ball Valv although valv fast develop in recent years, but still low overal level of the industry, technolog content of product low, mani of the kei paramet of the valv ha high depend on imports. Some expert estim that the level of our valves, compar with foreign advanc countri to 10 to 20 year behind. Not long ago, to strengthen the valv manufactur industri and the European exchanges, ha organ more than 10 domest enterpris had had valv tripCheck Valv to Europe, learn a lot of valuabl experi of foreign counterparts, while the valv industri compar with foreign , also see our own shortcomings. Process gap In the weld process, the German compani to meet the core-level KSB valv seal materi against radiation, and ha been wide us in special weld of cobalt-fre solder powder; Franc Wieland will preheat valve, automat welding, after weld treatment in the same equip or process with a complet product line, whether befor welding, welding, after welding, handling, temperatur control can be achiev Gate Valv to ensur the weld quality. The weld on domest technolog behind the valve, and some also us old-fashion welding, welder low level of technology, the solder materi is also common materials, special valv design reach. Mani enterpris engag in product and sale all day, veri few improv in the techniqu on studying. In forg the us of new technology, the Butterfli Valv German compani KSB valv materi to high temperatur alloi steel F91, F22-based, while the high-pressur valv Youyi forg mainli to ensur the reliabl and economy. Of the larg volum follow valv 600Lb us forg and welding, the valv is not caus by cast porosity, loose, and mani other defects, and greatli reduc the wasteGlob Valv of free forg materials, economi greatli improved. The domest industri mostli valv rough piec of multi-casting, forg the littl us in the follow high pressur valv 600Lb forg more easi to find. Thi regard, mani enterpris in order to reduc costs, mostli by steel casting, low pressur cast iron piec and more low-cost materi and process technolog is simple.

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