Gate valves are used to isolate parts of a vacuum extraction system, often in dust extraction systems in wood shops. They consist of a sliding or rotating plate and are manually or automatically operated. They maximize vacuum pressure and efficiency, and are simple in design. In complex systems, they may be remotely operated with a […]
Blast furnaces are used in iron smelting, with a tower shape and safety doors for feeding raw materials. They combine coal, iron ore, and flux to produce pig iron, and have remained largely unchanged since the Middle Ages. Blast furnaces are still an important part of the steelmaking process and are relatively inexpensive to operate […]
Blast chillers, also known as shock freezers, rapidly freeze food with extremely cold temperatures, creating small ice crystals that preserve the food’s integrity and reduce bacterial growth. They are commonly used in the frozen food industry and commercial kitchens, but can also be used by home cooks. A blast chiller is an extremely cold freezer. […]
A blast hood is worn during sandblasting to protect the operator’s eyes, ears, and skin from fine particles and toxic substances. There are two types of hoods, one with a fresh air supply hose for longer jobs. The hood is part of a protective suit and can be uncomfortable, but ear protection and a hard […]
Hot blast is a technique used in metallurgical operations to increase the efficiency of the refining process by recycling exhaust gases to preheat air blown into a blast furnace. This reduces the amount of fuel needed and speeds up production, resulting in cost savings. The hot air is injected into the furnace through nozzles called […]
When choosing an email service company, talk to former customers and check for spam reports. Compare prices and quality of listings. Be cautious of email blast providers and get references. Consider companies that specialize in building specific email lists and sending regular emails. Prices vary based on number of emails sent. Some companies allow payment […]
Email blasts are bulk emails sent to a large list of recipients within a specific period. They are now a legitimate tool for businesses to communicate with customers and increase sales. Email marketing is popular due to low cost and easy tracking, but laws restrict unsolicited emails. An email blast is a type of email […]
iPTF14hls, nicknamed a “zombie star,” has survived five separate supernova events, shining brightly for 600 days. Its brightness varied erratically, breaking what we thought we knew about supernovas. It may have also survived a previous explosion in 1954. The final stage of a giant star’s life is a blaze of glory called a “supernova.” Typically, […]
Explosion Welding (EXW) is a solid-state process that uses controlled detonations to join two different types of metals without compromising their original properties. It was inspired by observations during World War I and can be used to weld almost any pair of metals. The resulting joint is clean, vacuum-tight, and achieved quickly. However, the process […]
