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日常生活中我们使用的是镀锌管的什么?

来源:http://www.jnxxjm.com

【 发布于:2019-04-15 16:45:29 】


镀锌管应用

Application of Galvanized Pipe

为进步钢管的耐腐蚀性能,对普通钢管停止镀锌。镀锌钢管分热镀锌和电镀锌两种,热镀锌镀锌层厚,电镀锌本钱低,外表不是很润滑。吹氧焊管:用作炼钢吹氧用管,普通用小口径的焊接钢管,规格由3/8-2寸八种。用08、10、15、20或者195-Q235的钢带制造成的,为了防腐蚀,有的要停止渗铝处置。

In order to improve the corrosion resistance of steel pipes, galvanizing of common steel pipes is stopped. Galvanized steel pipes are divided into hot-dip galvanizing and electro-galvanizing. Hot-dip galvanizing has thick galvanizing layer, low galvanizing cost and poor lubrication in appearance. Oxygen-blowing welded pipe: used as steel-making oxygen-blowing pipe, commonly used small-caliber welded pipe, specifications from 3/8-2 inch eight. In order to prevent corrosion, some steel strips made of 08, 10, 15, 20 or 195-Q235 should stop aluminizing.

老房子大局部用的都是镀锌管,如今煤气、暖气用的那种铁管也是镀锌管,镀锌管作为水管,运用几年后,管内产生大量锈垢,流出的黄水不只污染洁具,而且夹杂着不润滑内壁滋生的细菌,锈蚀形成水中重金属含量过高,严重危害人体的安康。六七十年代,国际上兴旺国度开端开发新型管材,并陆续禁用镀锌管。中国建立部等四部委也发文化确从二000年起禁用镀锌管,目前新建小区的冷水管曾经很少运用镀锌管了,有些小区的热水管运用的是镀锌管。

Most of the old houses used galvanized pipes. Now the kind of iron pipes used for gas and heating are galvanized pipes. Galvanized pipes are used as water pipes. After several years of application, a large number of rust scales are produced in the pipes. The yellow water not only pollutes the sanitary ware, but also contains bacteria that grow on the non-lubricating inner wall. The heavy metal content in the rust water is too high, which seriously endangers the health of the human body. In the 1960s and 1970s, the prosperous countries in the world began to develop new types of pipes, and gradually banned galvanized pipes. Four ministries such as the Ministry of Establishment of China have also banned galvanized pipes since 2000. At present, galvanized pipes were seldom used in cold pipes of newly built residential areas, and galvanized pipes were used in hot pipes of some residential areas.

编辑本段镀锌钢管的重量系数

Editing the Weight Coefficient of Galvanized Steel Pipe in this Section

公称壁厚mm 2.0 2.5 2.8 3.2 3.5 3.8 4.0 4.5

Nominal wall thickness mm 2.02.52.8 3.23.53.8 4.04.5

系数c 1.064 1.051 1.045 1.040 1.036 1.034 1.032 1.028

Coefficient C 1.064 1.051 1.045 1.040 1.036 1.034 1.032 1.028

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注钢材力学性能是保证钢材最终运用性能(机械性能)的重要指标,它取决于钢的化学成分和热处置制度。在钢管规范中,依据不同的运用请求,规则了拉伸性能(抗拉强度、屈从强度或屈从点、伸长率)以及硬度、韧性指标,还有用户请求的高、低温性能等。:钢的牌号:Q215A;Q215B;Q235A;Q235B

The mechanical properties of steel injection is an important index to ensure the ultimate performance (mechanical properties) of steel, which depends on the chemical composition and heat treatment system of steel. In the steel pipe specification, according to different application requirements, the tensile properties (tensile strength, yield strength or yield point, elongation) and hardness, toughness index, as well as the high and low temperature properties requested by users are regulated. Steel grades: Q215A; Q215B; Q235A; Q235B

实验压力值/Mpa:D10.2-168.3mm为3Mpa;D177.8-323.9mm为5Mpa

The experimental pressure/Mpa: D10.2-168.3mm is 3Mpa; D177.8-323.9mm is 5Mpa.

编辑本段镀锌管的分类

Edit the classification of galvanized tubes in this section

镀锌钢管分冷镀管、热镀管,前者已被禁用,后者还被国度倡导暂时能用.

Galvanized steel pipes are divided into cold-plated pipes and hot-plated pipes. The former has been banned, while the latter has been advocated for temporary use by the state.

热镀锌管

Hot dip galvanized pipe

是使熔融金属与铁基体反响而产生合金层,从而使基体和镀层二者相分离。热镀锌是先将钢管停止酸洗,为了去除钢管外表的氧化铁,酸洗后,经过氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中停止清洗,然后送入热浸镀槽中。热镀锌具有镀层平均,附着力强,运用寿命长等优点。

It is to make the molten metal react with the iron matrix to produce the alloy layer, so that the matrix and the coating can be separated from each other. Hot-dip galvanizing is to stop pickling the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is stopped cleaning in the tank of ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution, and then sent into the hot-dip galvanizing bath. Hot dip galvanizing has the advantages of average coating, strong adhesion and long service life.

冷镀锌管

Cold galvanized pipe

冷镀锌就是电镀锌,镀锌量很少,只要10-50g/m2,其自身的耐腐蚀性比热镀锌管相差很多。正轨的镀锌管消费厂家,为了保证质量,大多不采用电镀锌(冷镀)。只要那些范围小、设备陈旧的小企业采用电镀锌,当然他们的价钱也相对廉价一些。目前建立部已正式下文,淘汰技术落后的冷镀锌管,今后不准用冷镀锌管作水、煤气管。

Cold galvanizing means galvanizing. The amount of galvanizing is very small. As long as it is 10-50g/m2, its corrosion resistance is much different from that of hot galvanizing tubes. In order to ensure the quality of normal rail galvanized pipe manufacturers, most of them do not use galvanized (cold plating). As long as those small enterprises with small scope and obsolete equipment adopt galvanizing, of course, their prices are relatively cheap. At present, the Ministry of Establishment has officially eliminated the backward technology of cold galvanized pipes. In the future, cold galvanized pipes are not allowed to be used as water and gas pipes.

热镀锌钢管

Hot-dip galvanized steel pipe

钢管基体与熔融的镀液发作复杂的物理、化学反响,构成耐腐蚀的构造严密的锌一铁合金层。合金层与纯锌层、钢管基体融为一体。故其耐腐蚀才能强。

The complex physical and chemical reactions occur between the steel tube matrix and the molten plating solution, forming a zinc-iron alloy layer with a tight corrosion resistance structure. The alloy layer is integrated with pure zinc layer and steel tube matrix. Therefore, its corrosion resistance can be strong.

冷镀锌钢管

Cold Galvanized Steel Pipe

锌层是电镀层,锌层与钢管基体独立分层。锌层较薄,锌层简单附着在钢管基体上,容易零落。故其耐腐蚀性能差。在新建住宅中,制止运用冷镀锌钢管作为给水管。

Zinc layer is an electroplating layer, and zinc layer is separately stratified from the steel tube matrix. The zinc layer is thin, and the zinc layer simply adheres to the steel tube matrix, which is easy to fall off. Therefore, its corrosion resistance is poor. In newly built residential buildings, the use of cold galvanized steel pipes as water supply pipes is prohibited.

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Thank you for reading and watching. The wonderful content of this article comes from: Jinan galvanized pipe will have more wonderful content to continue to show you. For more details, please click: http://www.jnxjm.com.



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