Waste yarn spooler is a device used in knitting machines to hold and dispense waste yarn. Waste yarn is used to create a temporary cast-on or to hold stitches in place while knitting. The spooler holds the waste yarn and allows it to be easily fed into the knitting machine. It also keeps the waste yarn organized and prevents it from getting tangled or knotted. The waste yarn spooler can be attached to the knitting machine or used as a standalone device.
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Fire engines and A/B foam compression fire engines, also known as compressed air foam fire engines. This type of compressed air foam vehicle carries water and high-magnification foam to fire the agent. It has the characteristics of small water consumption, strong fire-extinguishing foam, minimal reburning, high fire-fighting efficiency, and long-range foam, and it is used in fighting high-rise buildings. Oil and other fires have strong practicality. Class A and Class B (compressed air) foam extinguishing agents, full and dense foam, strong adhesion, fluorocarbon compound surfactant used in the formulation, good foam durability, stable water release time, and the surface tension of liquid water The interfacial tension is very low. The main advantages are fast fire control, high water efficiency in the fire field, and remarkable effects of heat insulation, radiation protection and re-ignition, which can greatly reduce the water-spotting damage at the fire site. It can be randomly allocated to the fire field at a concentration of 0.1 to 1%. The A and B in the car refer to the type of foam. When the Class A fire (solid fire) is extinguished, the foam not only adheres to the surface of the inflammable object to form a layer of heat-resistant and radiation-protective layer, but the stable and lasting foam will not flow at will and reduce the water-staining loss. A steady stream of foam precipitates viscous liquids with very strong penetrating power, penetrates deep into the flame of the solid combustion, promotes carbonation of the combustion surfaces, cuts off the combustion chain, and stops the combustion reaction. In the extinguishment of Class B fires (liquid fires), there are stable and long-lasting foams and stable water release. The foams spread rapidly under the action of the water film, stabilizing the long-lasting foams and stable and long-lasting water release. Not only can the fires be extinguished quickly, but also effective. The re-ignition of the combustion is prevented, so the product has the advantages of stable foam and good re-ignition effect.
February 14, 2024