before the 3pe anti-corrosion steel pipe is buried, it is necessary to clean up the surrounding environment. the measurement and release personnel need to make technical disclosures to the commanders and mechanical operators who participate in the cleaning work, and at least one

the construction of cement mortar fabric should usually be carried out after the spiral steel pipe is laid, the pressure test is qualified, and the soil is compacted according to the planning requirements. due to the small rigidity and thin wall of the steel pipe, the pipeline mu

the materials used for the anti-corrosion processing of spiral steel pipes have a decisive effect on the quality of anti-corrosion steel pipes. when carrying out anti-corrosion processing, the raw materials must be strictly tested. the anti-corrosion materials required for differ

steel pipeline anti-corrosion materials are divided into steel pipeline-themed anti-corrosion materials and their corresponding filling materials. the main anti-corrosion mainly includes petroleum asphalt, epoxy coal tar, anti-corrosion cold wrap, epoxy powder, pe coating, and pp

1. 3pe anti-corrosion steel pipe has high sealing performance, and long-term operation can significantly save energy, reduce costs and protect the environment.2. the corrosion resistance is strong, the structure is simple and fast, and the service life can reach 30-50 year

3pe anti-corrosion steel pipe base material includes seamless steel pipe, spiral steel pipe, and straight seam steel pipe. the three-layer polyethylene (3pe) anti-corrosion coating has been widely used in the oil pipeline industry due to its good corrosion resistance, water vapor

the anti-corrosion steel pipe is a metal body buried in the ground. however, due to the use environment, despite careful construction, the general steel pipe is inevitably prone to aging, and the steel pipe will still be damaged and defective. to prolong the life of the steel pip

in the increasingly demanding anti-corrosion steel pipe, the selection of anti-corrosion materials has also become diverse, and different anti-corrosion materials have different requirements for steel pipes in different use environments. aside from the premise of the project envi

3pe anti-corrosion steel pipes are mainly used as fluid pipes and piling pipes. after the steel pipes are made, if they are used for running water, they will generally be treated with anti-corrosion on the inner or outer surface. the general anti-corrosion includes 3pe anti-corro

with the continuous development of my country's economy and the country's vigorous development of the energy industry, long-distance oil and gas pipelines are an important way to ensure energy. it is the premise of whether the anti-corrosion layer and the steel pipe can be firmly combined. it has

anticorrosion of galvanized pipe welding: after surface treatment, thermal spray zinc. if galvanizing cannot be done on-site, you can follow the on-site anti-corrosion method: brush epoxy zinc-rich primer, epoxy micaceous iron intermediate paint, and polyuret

1. two pe and three pe anti-corrosion steel pipes are light in weight and strong in adhesion;2. the coating is uniformly coated and has high toughness;3. strong resistance to stress cracking and high impact resistance;

what are the commonly used anti-corrosion coatings steel pipea. powder coating, which is a new type of coating that does not contain solvent and is formed by melting powder. epoxy powder coating is commonly used in anti-corrosion engineering. compared with traditional solv

the outer coating of ep powder is mostly sprayed with an electrostatic gun.in electrostatic gun spraying, when spraying, the powder is electrostatically generated under the action of the electrostatic generator, so that the powder is adsorbed on the steel pipe. the coating

1) the gas steel pipeline system is a continuous closed transportation system.2) from the transmission, and storage to user use, natural gas is under pressure.3) due to the small specific gravity of the natural gas being transported, the influence of the static pres

in recent years there has been a growing diffusion of stainless steel flue pipes. but the use of this material is becoming more and more frequent in plant design for the evacuation of fumes. why? for its excellent specific characteristics. in fact, the aisi 316l austenitic stainless steel:

1. usd currency： 1 : 6.68 aroundthe usd currency is relatively stable in the whole month, but the most highest point ups to 6.76 on the mid of june, then back to 6.68-6.70 around.

1. usd currency：1 : 6.6468 on 2022-05-30 14：12 the usd currency ups and downs in the whole month. in the earlier of may, it increase to the peak one, and then sharply decrease. on 20<