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The internal and external liquid coating spraying of steel pipes is an efficient method of anti-corrosion for steel pipes.
Epoxy powder mainly plays an anti-corrosion role, adhesives enhance the bonding between the layers, and polyethylene provides good mechanical protection and environmental resistance. Internal epoxy coating spraying has strong anti-corrosion adhesion and good chemical corrosion resistance, which can effectively prevent the inside of the steel pipe from being corroded by the conveying medium (such as oil, gas, water, etc.). This anti-corrosion method is widely used in the fields of oil and natural gas pipelines, water supply and drainage pipelines, etc., and can greatly extend the service life of steel pipes.
Heating furnace and chain Heating furnace chamber body
Complete set of internal spraying equipment Photos of internal spraying work Internal spraying car
Internal spraying photo External 3PE internal epoxy coating sprayed finished pipe
Production line parameters:
(1) Steel pipe coverage range: 114mm-4200mm
(2) Processing capacity: ≤250м²/h
(3) Cleaning level: Sa2.5
(4) Materials used: epoxy powder, adhesive, polyethylene, epoxy coating (single component, two-component)
(5) Main equipment: steel pipe external rust removal equipment, steel pipe internal rust removal equipment, medium frequency heating equipment, epoxy powder spraying equipment, AD adhesive extrusion equipment, PE polyethylene extrusion equipment, cooling equipment, PE groove equipment, high-pressure airless spraying machine, curing furnace heating and drying equipment, spray marking equipment, catalytic combustion environmental protection equipment, etc.
Qingdao Huashida, a global plastic extrusion equipment R&D manufacturer and solution provider, 70% of our customers from Europe, the United States, the Middle East and Southeast Asia and other overseas countries. Huashida's R&D and manufacturing insulation pipe production line is widely used in municipal heat, sewage, water supply, natural gas and communication pipe network construction, crude oil pipeline transportation and agricultural irrigation. Relying on our innovation and product strength, we have provided customized technical services for more than 1000 manufacturers , including more than 400 domestic enterprises and more than 500 foreign enterprises and established a 24-hour global service response mechanism to effectively solve customer concerns.
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