Steel pipe

The dangers of incorrect maintenance of gate valves!

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Feature

High mechanical properties. Epoxy resin has strong cohesion and dense molecular structure, so its mechanical properties are superior to general thermosetting resins such as phenolic resin and unsaturated polyester

The coating of plastic-coated fire pipes is made of epoxy resin, which has strong adhesion. The epoxy resin curing system contains extremely active epoxy groups, hydroxyl groups, and polar groups such as ether bonds, amine bonds, and ester bonds, which provide the epoxy cured product with polarity properties such as metal, ceramics, glass, concrete, and wood. group. Material with excellent adhesion

Curing shrinkage is small. Generally it is 1%~2%. It is one of the varieties with the lowest curing shrinkage among thermosetting resins (phenolic resin is 8% to 10%; unsaturated polyester resin is 4% to 6%; silicone resin is 4% to 8%). The linear expansion coefficient is also very small, generally 6×10-5/℃. Therefore, the volume does not change much after curing

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Jul 04, 2024

2023 EXPO & FORUM THE INVITATION INDOWATER

Sep 03, 2023

Selection principles for various commonly used valves!

Selección de válvulas de suministro y drenaje de agua

Nov 27, 2023

Client in Ethiopia Yaxin Gaardo visited our head office in Zhengzhou

Cliente en Etiopía Yaxin Gaardo visitó nuestra oficina central en Zhengzhou

Sep 21, 2023

WESDOM GROUP visits customers in Istanbul

Dec 27, 2023

Gate valve installation precautions

Dec 15, 2023

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