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济南镀锌管在使用上应该达到哪些性能?

来源:http://www.jnxxjm.com

【 发布于:2019-07-02 14:20:59 】


为进步钢管的耐腐蚀性能,对普通钢管停止镀锌。镀锌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,有得停止渗铝处置。

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

镀锌钢管的重量系数

Weight Coefficient of Galvanized Steel Pipe

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

注钢材力学性能是保证钢材终运用性能(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 of steel and heat treatment system. 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.

20171214929786.jpg

常说的镀锌管,镀锌管的用处如今煤气、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。

Usually said galvanized pipe, the use of galvanized pipe is now gas, heating that kind of iron pipe is galvanized pipe, galvanized pipe as a water pipe, after several years of use, the pipe produced a large number of rust scale, yellow water not only pollutes the sanitary ware, but also mixed with non-lubricating bacteria, rust formed in the water heavy metal content is too high, serious. Harm the health of 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.

镀锌管应该到达的技术请求

Technical Requirements for Galvanized Pipes to Arrive

1、牌号和化学成分

1. Brand and Chemical Constituents

镀锌管用钢的牌号和化学成分应契合GB 3092所规则的黑管用钢的牌号和化学成分。

The grade and chemical composition of galvanized pipe steel shall conform to the grade and chemical composition of the black pipe steel specified in GB 3092.

2、制造办法

2. Manufacturing methods

黑管的制造办法(炉焊或电焊)由制造厂选择。镀锌采用热浸镀锌法。

The manufacturing method of black pipe (furnace welding or electric welding) is chosen by the manufacturer. Hot dip galvanizing is used for galvanizing.

3、螺纹及管接头

3. Thread and pipe fittings

3.1 带螺纹交货的镀锌钢管,螺纹应在镀锌后车制。螺纹应契合YB 822的规则。

3.1 For galvanized steel pipes delivered with threads, threads shall be made after galvanizing. Threads shall conform to the rules of YB 822.

3.2 钢制管接头应契合YB 238的规则;可锻铸铁管接头应契合YB 230的规则。

3.2 Steel pipe joints shall conform to the rules of YB 238; malleable cast iron pipe joints shall conform to the rules of YB 230.

钢材力学性能是保证钢材终运用性能(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。

Mechanical property of steel is an important index to ensure the ultimate performance (mechanical property) 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.

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Thank you for reading, this article source: Jinan galvanized pipe more content and questions, please click: http://www.jnxxjm.com, we will continue to work hard to provide you with services, thank you for your support!



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