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Stalen fabrieken zijn voortdurend op zoek naar manieren om hun productieprocessen te verbeteren en in te spelen op de veranderende behoeften van de markt. Een belangrijke innovatie is de ontwikkeling van geavanceerde coatings die de levensduur en prestaties van golvenplaat staal verder verbeteren. Deze coatings zijn niet alleen functioneel, maar ook esthetisch aantrekkelijk, wat zorgt voor een breed scala aan ontwerpopties voor architecten en bouwers.
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1. Proper Tools The first step in the removal process is to gather the necessary tools. This typically includes a reciprocating saw, pipe wrenches, a pipe cutter, and safety equipment such as gloves and goggles. Each tool serves a crucial role in effectively dismantling the existing plumbing without damaging the cast iron.
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From this kind of standard immersion testing, one would expect that bisphenol-cured VDF/HFP/TFE fluoroelastomers would not give good service life as oil seals. Similar tests with other elastomers, such as HNBR, silicone, and acrylic rubbers, show less loss of elongation. However, it is found that, in actual service, FKM shaft seals6 have much longer service life than seals of the other elastomers. In a Japanese study of FKM lip seals, rear crankshaft seals from high-mileage automobiles (70,000–280,000 mi ie, 110,000–450,000 km) were collected and examined. No serious oil leakage was found when the seals were removed from the engines. Some deposits were found around the seal lip and on the garter spring holding the lip against the shaft. No surface cracks were found on the seal lip, and only minor crazing on the crankcase side of the flexure portion of the seal in some samples. The seal compositions were not noted, but most were probably VDF/HFP/TFE elastomers with 68–69% fluorine content.