Specifies technical delivery conditions for cold finished seamless precision steel tubes of the dimensions listed in DIN 2391 Part 1, which are made from the steel grades of St30Si (1.0211), St30Al (1.0212), St35 (1.0308), ST35 (1.0408), St52 (1.0580). Such tubes are mainly used where accuracy to size and, possibly, a small wall thickness, a particular surface condition and specific mechanical properties are required.
Определяет технические условия поставки для холодных законченных безшовных трубок точности стальных размеров перечисленных в части 1 ДИН 2391, которые сделаны из стальных рангов Ст30СИ (1,0211), Ст30Ал (1,0212), Ст35 (1,0308), СТ35 (1,0408), Ст52 (1,0580). Такие трубки главным образом использованы где точность к размеру и, по возможности, небольшая толщина стены, определенное состояние поверхности и специфические механические свойства необходимы.
ASTM A335P11 P22 P91 ，East standard specifies seamless circular tubes of non-alloy steels used in chemical plant construction, pressure vessels,piping system and general mechanical and engineering purposes.
ASTM A333 Gr.6 pipe， East standard specifies seamless circular tubes of non-alloy steels used in chemical plant construction, pressure vessels,piping system and general mechanical and engineering purposes. Main Steel grades are Din 1629 the specification applies to steel pipes seamless and pipes are suitable for gas fusion welding,arc welding, flash butt welding, electric pressure welding and gas pressure welding. Seamless steel pipe, welded steel pipe,All galvanized steel pipes are available.
Roller polished / honed seamless steel tubing is cold drawn both internally and externally and then tempered with tensile strengths up to 520 N / mm2 or more. Then Golden Asia perfected the job with its own precision honing / honing roller with polished finish and H7, H8 diameter tolerance. This helps extend cylinder life and reduces seal wear.
A Yankee dryer is a pressure vessel used in the production of tissue paper. On the Yankee dryer, the paper goes from approximately 42–45% dryness to just over 89% dryness. In industry, MG cylinders orYankee dryers are primarily used to remove excess moisture from pulp that is about to be converted into paper.
The steam-heated metal cylinder which the paper passes over to be dried. The steam-heated cylinders over which paper in the web is passed to be dried.
A large hollow roll with holes drilled over the entire shell. The wire passes over it and water is removed from the sheet by vacuum applied to the roll. Roll used to separate wet paper web from the "wire".
The roll on the fourdrinier or former which serves as a support for the fabric and to seal off the head box slice. A large diameter roll around which the fourdrinier wire passes at the machine head box just at or ahead of the point where the stock is admitted to the wire by the stock inlet. It is covered with corrosion- resistant metal or fiberglass and is usually driven by the fourdrinier wire.
The main function of the grouting pipe is to help the concrete pour into various holes and joints, so that it can be completely sealed, so as to prevent fracture, displacement and deformation, and better protect the pile foundation and its bearing materials.
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