摘要:
Device for cooling a rotating tool mounted on a machine, including elements for generating a continually renewed first flow of air, external to the tool and around the tool, at a high flow rate, produced via a Coanda-effect flow amplifier device realized in a housing fixed on the machine around the tool holder connected to a source of pressurized air.
摘要:
Device for cooling a rotating tool mounted on a machine, including elements for generating a continually renewed first flow of air, external to the tool and around the tool, at a high flow rate, produced via a Coanda-effect flow amplifier device realized in a housing fixed on the machine around the tool holder connected to a source of pressurized air.
摘要:
A perfectly ductile hard steel wire having superposed coatings resisting corrosion. The wire is coated with a first inner layer A1 (Al-Fe-Zn) and a second outer layer A2 (Zn-Al-Fe) and the first inner coating layer has the following composition:______________________________________ Al between 15% and 45% Fe between 5% and 25% Al Zn forming the balance with elements of addition in a small amount, such as Mg, Sn, Ni, Cu, Cr, Mischmetal, etc. . . the total amount of which does not exceed 0.5%. ______________________________________ This wire has a resistance to corrosion very much higher than that of conventional galvanized wires and that of similar Zn-Al coatings which had been deposited in a single stage.