Abstract: The present application relates to metal cutting, and more particularly to a cutting fluid and a preparation method and an application thereof, especially the application in the processing of niobium-tungsten alloy (NB521). The preparation method of the cutting fluid is simple and requires low production cost. In the mechanical processing of niobium-tungsten alloy (NB521), the cutting fluid has good cooling performance, lubricity, load-bearing capacity, friction reduction and vibration absorption, and long service life. It also can effectively avoid built-up edges, thereby improving the service life of cutting tools and the processibility of materials. Therefore, products of good quality are produced to improve the yield, especially in the deep hole machining, and thus the cutting fluid of the present application is suitable for a wide range of applications.

Abstract: The present application relates to metal cutting, and more particularly to a cutting fluid and a preparation method and an application thereof, especially the application in the processing of niobium-tungsten alloy (NB521). The preparation method of the cutting fluid is simple and requires low production cost. In the mechanical processing of niobium-tungsten alloy (NB521), the cutting fluid has good cooling performance, lubricity, load-bearing capacity, friction reduction and vibration absorption, and long service life. It also can effectively avoid built-up edges, thereby improving the service life of cutting tools and the processibility of materials. Therefore, products of good quality are produced to improve the yield, especially in the deep hole machining, and thus the cutting fluid of the present application is suitable for a wide range of applications.

Abstract: A card information protection device and a finance service equipment having the same are provided. The card information protection device is arranged between a transverse card inlet and a longitudinal magnetic card information reader, and comprises a magnetic card transverse admission port. A magnetic card conveying channel is arranged between the magnetic card transverse admission port and the longitudinal magnetic card information reader. A magnetic card rotating mechanism is arranged in the magnetic card channel. The magnetic card rotating mechanism is used for rotating a transversely-inserted magnetic card to longitudinal direction in order to convey the magnetic card into the longitudinal magnetic card information reader, and rotating the longitudinal magnetic card returned by the longitudinal magnetic card information reader to transverse direction in order to convey the transverse magnetic card out.

Abstract: Disclosed are a banknote processing system and method. The system comprises: a terminal (1), an identification unit (2), a physical banknote box (4), a banknote box information storage unit (5), and a main control unit (3). The identification unit (2) detects the banknotes getting in or out of the physical banknote box (4) to obtain inherent information of the banknotes; the main control unit (3) updates a virtual electronic banknote box according to the inherent information of the banknotes, and determine information of the banknotes in the physical banknote box (4) according to the information of the virtual electronic banknote box. The virtual electronic banknote box is a set of the inherent information of the banknotes, wherein the inherent information of the virtual electronic banknote box is one-to-one mapped to the banknotes in the physical banknote box (4), and the storage sequence of the inherent information is the same as the placement sequence of the banknotes in the physical banknote box (4).

Abstract: A card information protection device and a finance service equipment having the same are provided. The card information protection device is arranged between a transverse card inlet and a longitudinal magnetic card information reader, and comprises a magnetic card transverse admission port. A magnetic card conveying channel is arranged between the magnetic card transverse admission port and the longitudinal magnetic card information reader. A magnetic card rotating mechanism is arranged in the magnetic card channel. The magnetic card rotating mechanism is used for rotating a transversely-inserted magnetic card to longitudinal direction in order to convey the magnetic card into the longitudinal magnetic card information reader, and rotating the longitudinal magnetic card returned by the longitudinal magnetic card information reader to transverse direction in order to convey the transverse magnetic card out.

Abstract: Disclosed are a banknote processing system and method. The system comprises: a terminal (1), an identification unit (2), a physical banknote box (4), a banknote box information storage unit (5), and a main control unit (3). The identification unit (2) detects the banknotes getting in or out of the physical banknote box (4) to obtain inherent information of the banknotes; the main control unit (3) updates a virtual electronic banknote box according to the inherent information of the banknotes, and determine information of the banknotes in the physical banknote box (4) according to the information of the virtual electronic banknote box. The virtual electronic banknote box is a set of the inherent information of the banknotes, wherein the inherent information of the virtual electronic banknote box is one-to-one mapped to the banknotes in the physical banknote box (4), and the storage sequence of the inherent information is the same as the placement sequence of the banknotes in the physical banknote box (4).