13835631999
0356-6967868

球磨铸铁管3——历史(精华)

发布时间:2021-03-08 21:58 | 编辑:球磨铸铁管发展历史 | 56 次浏览
球磨铸铁管3——历史(精华)球磨铸铁管历史 1947年英国H.Morrogh发现,在过共晶灰口铸铁中附加铈,使其含量在0.02wt%以上时,石墨呈球状。1948年美国A. P.Ganganebin等人研究指出,在铸铁中添加镁,随后用硅铁孕育,当残余镁量大于0.04wt%时,得到球状石墨。球状石墨 从此以后,球墨铸铁开始了大规模工业生产。有关球墨铸铁管的使用历史可以追溯到1668年巴黎郊区从塞纳河至凡尔赛全场约21.14Km的输水管线,300年的时光流...

球磨铸铁管3——历史(精华)


球磨铸铁管历史


       1947年英国H.Morrogh发现,在过共晶灰口铸铁中附加铈,使其含量在0.02wt%以上时,石墨呈球状。1948年美国A. P.Ganganebin等人研究指出,在铸铁中添加镁,随后用硅铁孕育,当残余镁量大于0.04wt%时,得到球状石墨。

球状石墨


       从此以后,球墨铸铁开始了大规模工业生产。有关球墨铸铁管的使用历史可以追溯到1668年巴黎郊区从塞纳河至凡尔赛全场约21.14Km的输水管线,300年的时光流逝,除部分管道和接头维修更换外,主体至今仍在使用。

凡尔赛


       我国球墨铸铁管的现状及前景 我国的球墨铸铁管行业起步于20世纪90年代初,在中国城镇供水协的大力支持下发展迅猛,经过近20年的实践使用,其安全性、实用性已被供水行业普遍认可,2008年国内年产量已达到220万吨,是1990年的11倍。由于我国是一个水资源缺乏的国家,缺水城市为600多个,严重缺水城市为200多个,供水节水事业方兴未艾,球墨铸铁管有着广阔的发展前景。


In 1947, H. morrogh of England found that when cerium was added to hypereutectic gray cast iron to make its content above 0.02wt%, graphite was spherical. In 1948, A. P. ganganebin and others pointed out that when magnesium was added to cast iron and then inoculated with ferrosilicon, spherical graphite was obtained when the residual magnesium content was more than 0.04wt%. Since then, large-scale industrial production of ductile iron began. The use history of ductile iron pipe can be traced back to 1668. The 21.14km water pipeline from the Seine River to Versailles in the suburbs of Paris. With the passage of 300 years, except for the maintenance and replacement of some pipes and joints, the main part is still in use today. The present situation and Prospect of ductile iron pipe in China the ductile iron pipe industry in China started in the early 1990s and developed rapidly with the strong support of China Urban Water Supply Association. After nearly 20 years of practical use, its safety and practicability have been generally recognized by the water supply industry. In 2008, the domestic annual output has reached 2.2 million tons, 11 times higher than that in 1990. Due to the lack of water resources in China, there are more than 600 water shortage cities and more than 200 serious water shortage cities. The cause of water supply and water saving is in the ascendant. Ductile iron pipe has a broad development prospect.





山西悦瀚球墨铸管,专业生产厂家,DN80-2600产品种类齐全,价格实惠,欢迎新老顾客来电咨询,全国项目总监电话:138-3563-1999


          产品种类:球墨铸铁管DN80-2600 \ 球墨井盖 \ 球墨胶圈 \ W柔性管 \ 抢修节 \


网址:http://www.fujimechanic-cs.com/


     

全国项目总监                 悦瀚铸管官网


(声明:文章来源于网络,不代表本站观点及立场,版权归原作者所有,若有侵权或异议请联系更正或删除)

相关文章

     球墨铸管
    联系我们
山西悦瀚球墨铸管有限公司
联系人:朱元基

电话:13835631999

          0356-6967868

地址:山西省晋城市城区白水街南、黄华街东(方程国际商业服务楼1幢16层1908号)
客户案例
快速导航:
ag九游会网址 http://www.zhmxd.com http://www.yingzaiweixin.com http://www.hr-houses.com http://www.snagsrus.com http://www.sqxlm.com http://www.china-cigar.com http://www.fan-he.com http://www.shiplang.com http://www.jxeyes.com http://www.im1977.com http://www.taychin.com http://www.ipointimc.com http://www.wh-google.com http://www.soveryun.com http://www.austroid.com http://www.025mpc.com http://www.lisninfo.com http://www.ynlangjun.com http://www.chrisfur.com http://www.seokyeon.com http://www.sy7388.com http://www.26348829.com http://www.baishi-pawn.com http://www.lnankang.com http://www.gutefender.com http://www.haobanlvwuye.com http://www.hhdxm.com http://www.biyobuin.com http://www.nbdywj.com http://www.psdhut.com