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News
How the large diameter spiral steel pipe is made
Views: 308 Dec 12 , 2022
(1) Raw materials, i.e. strip coil, welding wire and flux. In the input before are to pass a rigorous physical and chemical examination.
(2) large diameter spiral steel pipe strip head and tail butt, the choice of single or double-wire submerged arc welding, after the coil into a steel...
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How to choose anti-corrosion practices for outdoor pipes
Views: 268 Dec 09 , 2022
Outdoor pipeline anti-corrosion is mainly for the outdoor construction of the pipeline anti-corrosion, the main construction methods are overhead and buried two, regardless of which construction method common anti-corrosion is mainly for the outer wall and inner wall of the pipeline, the outer wall...
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Anti-corrosion steel pipe for electrostatic anti-corrosion coati
Views: 278 Dec 07 , 2022
The effect of electrostatic spraying of anti-corrosion steel pipe depends not only on the electrostatic spraying equipment and management techniques, but also consider whether the coating varieties used meet the requirements of electrostatic spraying. Electrostatic spraying requires a low resistivity of the...
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What are the elements that have an impact on the performance of
Views: 281 Dec 05 , 2022
Anti-corrosion steel pipe is a steel pipe that can be effectively prevented or slowed down by chemical or electrochemical reaction in the process of transportation and use of corrosion phenomena after anti-corrosion process processing. According to statistics, the annual steel pipe corrosion direct economic loss of...
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Characteristics of anti-corrosion steel pipe and construction pr
Views: 266 Dec 02 , 2022
Since the closed porosity of polyurethane foam can reach more than 92%, therefore, using polyurethane foam as the insulation layer of direct buried pipe can not only play the role of heat insulation, but also effectively prevent the penetration of water, moisture and other kinds of corrosive liquid and gas, and prevent the breeding and...
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Spiral steel pipe in the production of attention to matters
Views: 338 Nov 28 , 2022
Corrosion-proof steel pipe refers to the steel pipeline that can be effectively prevented or slowed down by chemical or electrochemical reaction in the process of transportation and use of corrosion phenomena after anti-corrosion process processing. According to China's statistics, the annual domestic steel pipe corrosion direct economic...
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Anti-corrosion steel pipes are classified according to different
Views: 229 Nov 25 , 2022
Corrosion-proof steel pipe refers to the steel pipeline that can be effectively prevented or slowed down by chemical or electrochemical reaction in the process of transportation and use of corrosion phenomena after anti-corrosion process processing. According to China's statistics, the annual domestic steel pipe corrosion direct...
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Spiral steel pipe surface rust removal treatment has several met
Views: 180 Nov 23 , 2022
1、Cleaning
Apply solvents and emulsions to clean the exterior of steel to remove oil, grease, dust, slicker and similar organic substances, but it cannot remove rust, oxidation skin, welding powder, etc. on the exterior of steel, so it is only used as an auxiliary trick in anti-corrosion production.
2、Spraying...
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The simple and simple process of spiral steel pipe production
Views: 154 Nov 21 , 2022
Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, extruded at regular temperature and welded by automatic double-wire double-sided submerged arc welding process. Spiral steel pipe will be fed into the welded pipe unit, rolled by multiple rolls, the strip is gradually rolled up to form a circular...
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Spiral steel pipe welded seam at the cause of trachoma
Views: 152 Nov 18 , 2022
There are many processing steel pipe operators reflect the spiral steel pipe butt weld at the presentation of trachoma. Spiral steel pipe is made of strip steel through the roll forming machine, the spiral direction of bending, and then through the capacitive double-sided submerged arc welding. In the spiral steel pipe welding production...
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