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以前的水管用镀锌管的原因大家知道吗?

来源:http://www.jnxxjm.com

【 发布于:2020-04-21 11:12:00 】


  一、在17和18世纪,这些管子是用木头做的,现在伦敦仍然有这样的管子,但是当发现它们会发霉并感染大肠杆菌时,它们被替换了。

  1、 In the 17th and 18th centuries, these tubes were made of wood, and still exist in London today, but they were replaced when they were found to be moldy and infected with E.coli.

  在19世纪60年代以前,大部分的水管都是用铅和锡做的,但是人们发现它们的危害太大,喝水会使人虚弱,所以它们被替换了。

  Before the 1860s, most of the water pipes were made of lead and tin, but they were found to be too dangerous and weak to drink, so they were replaced.

  2000年以前,大多数国家开始采用镀锌管,由于成本低廉,后来发现会生锈,所以更换。少数富裕的发达国家,拥有不锈钢管,到目前为止一直没有问题。

济南镀锌管

  Before 2000, most countries began to use galvanized pipes. Due to the low cost, it was later found that they would rust, so they were replaced. A few rich developed countries, with stainless steel pipes, so far have no problems.

  2000年以后是塑料时代,PVC/uPVC的强度密度很小,现在已经没有问题了。

  After 2000, it is the age of plastics. The strength density of PVC / UPVC is very small. Now there is no problem.

  二、由于便宜,其他热镀锌管在一定年限内也可以耐腐蚀走,禁止的是冷镀锌的镀锌管。PPR管中可能有塑化剂残留,其实更好是316医用不锈钢管中含有钼(钛合金不算,太贵了,也许阿联酋石油王子用得起吧?但是他们可能使用金色的水龙头。和白马王子但即使是在北京的奥林匹克体育场,作为唯一的使用水平304酒吧。好的材料太贵了。

  2、 Due to its low cost, other hot-dip galvanized pipes can also be corrosion-resistant within a certain period of time. It is forbidden to use cold galvanized galvanized pipes. There may be plasticizer residues in PPR pipes. In fact, 316 medical stainless steel pipes have molybdenum (titanium alloy is not included, it is too expensive, maybe UAE oil prince can afford it? But they may use golden faucets. And prince charming but even in Beijing's Olympic Stadium, as the only level of use 304 bar. Good materials are too expensive.

  三、也不能改变海关和海关说,尽管出现以来,PVC塑料管等新材料,有一种趋势取代铜管等老类型的管道,但随着生产和使用,结果表明,在PVC化学添加剂酞(为了使管变软)对人体有极大的损害,肾脏,肝脏,现在自从2004年建设部限制停止使用技术,已经停止使用铅盐作为PVC管的安全剂。近年来国内的研究情绪似乎又回到了对钢管的传统讨论上。毕竟铜管是安全的…它仍然是一种新型的高质量的管子…有很多故事。但它提醒人们,虽然寻求创新是好的,但我们应该脚踏实地,多关注问题,而不是表面现象。

  3、 It can't change the customs and the Customs said that although there is a trend to replace the old type of pipes such as copper pipes with new materials such as PVC plastic pipes, with the production and use, the results show that the chemical additive phthalein in PVC (in order to make the pipes soft) has great damage to human body, kidney, liver, Since 2004, the Ministry of construction has restricted the use of technology, and has stopped using lead salt as a safety agent for PVC pipes. In recent years, the domestic research mood seems to return to the traditional discussion of steel pipe. After all, copper is safe It is still a new type of high quality pipe There are many stories. But it reminds people that although it is good to seek innovation, we should be down-to-earth and pay more attention to problems rather than surface phenomena.

  四、那么廉价房子大板楼已经进入20或30年等常用危险的房子也很多,那么建筑材料正在寻求资本,监管是0,镀锌钢管甚至热镀使用二十年左右将腐蚀,可以户外十年,现在新国家标准的镀锌管是300克/平方米,一旦有了规范,现在包括水管现象主要是使用镀锌管和铸铁管,PVC铅盐污染。

  4、 So there are many common dangerous houses such as low-cost houses and large plate buildings that have been in use for 20 or 30 years. So the building materials are seeking capital. The regulation is 0. Galvanized steel pipes and even hot-dip galvanized steel pipes will corrode in about 20 years. They can be used outdoors for 10 years. Now, the galvanized pipes of the new national standard are 300g / m2. Once there is a standard, the water pipes are mainly galvanized pipes and cast iron pipes, PVC lead salt pollution.

  以上是济南镀锌管厂家为大家介绍的相关内容,想要了解更多内容,欢迎访问网站:http://www.jnxxjm.com

  The above is the relevant content introduced by Jinan galvanized pipe manufacturer. For more information, please visit the website: http://www.jnxxjm.com



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