Industrial News
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Pipeline system design
Pipeline system design refers to the design of the refrigerant compressor and a variety of refrigeration equipment, components connected together to form a reasonable cooling system, including the diameter determined, heat pipes and fittings and pipe layout. Cold storage installation design is go...Read more -
DIN 30670
DIN 30670 refers to polyethylene coatings on steel pipes and fittings –Requirements and testing. This standard specifies requirements for factory-applied three-layer extruded polyethylene-based coatings, and one- or multi-layered sintered polyethylene-based coatings for the corrosion protection o...Read more -
Argon welding
Argon welding use the argon as a protective gas welding technique,so also called argon gas welding. That is, around the arc of the argon gas through the air isolated from the welding area,to prevent oxidation of the weld zone. Argon welding technique is based on the general principle of arc weldi...Read more -
Construction of cement mortar steel pipe
Construction of cement mortar in two ways. First floor centrifugation. Mainly suitable for pipes lined with construction DN400 caliber or less. But underground spraying, mainly applied to DN700 diameter pipeline corrosion construction above the ground. Cement mortar pipe corrosion: a mixture of c...Read more -
Cold-drawn tube unit
Cold-rolled, cold-drawn or cold-rolled and cold drawn combination of cold working process for the production of pipe package of equipment combinations. It is the hot-rolled welded pipe or tube depth processing units. Based on the processing properties of the metal, pipe size, quality requirements...Read more -
Steel pipe pickling procedure
So called pickling is using hydrofluoric acid and nitric acid solution to wash steel surface oxide generated after heat-treated. Used in the solution composition and ratio values: HF (3-8%), HNO3 (10-15%), H2O (the remaining amount) when processing solution temperature at 40-60 °C. Steel pipe pic...Read more