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HOBAS is a manufacturer of centrifugally cast glassfiber reinforced (GRP) pipe systems made of unsaturated polyester resin with diameters ranging from 150 mm to 3600 mm. The company was founded in Basel, Switzerland in 1957.
Video of concrete pipe production. Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is typically used to cast materials such as metals, glass, and concrete. A high quality is attainable by control of metallurgy and crystal structure.
In cast iron pipe, the graphite forms flakes during the casting process, when examined under a microscope. Cast iron pipe was superseded by ductile iron pipe, which is a direct development, with most existing manufacturing plants transitioning to the new material during the 1970s and 1980s. Ductile iron pipe is different than cast iron, because ...
Orangeburg pipe (also known as "fiber conduit", "bituminous fiber pipe" or "Bermico" or "sand pipe") is bituminized fiber pipe used in the United States. It is made from layers of ground wood pulp fibers and asbestos fibres compressed with and bound by a water resistant adhesive then impregnated with liquefied coal tar pitch .
Centrifugally cast (spun) iron pressure pipes for water, gas and sewage 5 IS: 1537 Vertically cast iron pressure pipes for water, gas and sewage 6 IS: 1710 Vertical turbine pumps for clear, cold fresh water 7 IS: 2002 Steel plates for boilers 8 IS: 2062 structural steel (Fusion welding quality) 9 IS: 2594 Horizontal mild steel welded storage tanks
In the late 1950s, ductile iron pipe was introduced to the marketplace, featuring higher strength and similar corrosion resistance compared to cast iron. [10] According to a 2004 study, an expected lifespan of 100 years is likely for ductile iron pipe, based on test results, field inspections and in-service operations over 50 years. [ 11 ]
Hollywood is abuzz with allegations of “Ozempic face,” a term for “gaunt” features linked to rapid weight loss. Stars like Katy Perry, Lizzo, and John Goodman are currently facing scrutiny ...
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth .