Martensite stainless steel anti-theft nut manufactured by anti-crisping quench hardening process

Abstract

The invention discloses a martensite stainless steel anti-theft nut manufactured by an anti-crisping quench hardening process. The martensite stainless steel anti-theft nut is an anti-theft nut which is arranged on a high-voltage iron tower frame and can be only assembled and disassembled by a special tool. The martensite stainless steel anti-theft nut comprises a non-quenched martensite stainless steel anti-theft nut body (1), a nut bottom surface (3), a nut top surface (8) and the like. The body at the temperature of 1,040 + / - 100 DEG C in the tenth conventional time period is subjected to the conventional oil cooling for the second time until the temperature is 0 + / - 40 DEG C (415), and then the body is subjected to nitrogen freezing at the temperature of -80 + / - -70 DEG C for 2.5 + / - 2 hours (416) for the third time. A large number of martensite stainless steel anti-theft nuts can be arranged on easily thieved and easily damaged outdoor facilities such as the high-voltage iron tower frame for theft prevention and damage prevention or disassembly and replacement after being matched with anti-theft screws, special assembly and disassembly tools and the like of the corresponding specifications and shapes; and the social benefit is obvious.

Description

technical field [0001] The present invention is a non-standard nut in fasteners, which can be installed on a large number of fasteners after it is matched with martensitic stainless steel anti-theft screws manufactured by corresponding specifications, shapes, steel quality and quenching process, and special tools for assembly and disassembly. Outdoor high-voltage electric towers and other facilities that are easy to be stolen and destroyed by terror are fixed for anti-theft installation or anti-theft installation for dismantling the old and replacing them with new ones, which has obvious social benefits. Background technique [0002] So far, there is still a lack of series products such as truly effective, convenient assembly and disassembly, anti-theft and reliable anti-theft screws and special tools for assembly and disassembly, resulting in a large number of easy-to-theft and terrorist-destructive facilities installed outdoors that are constantly being stolen and sold. Th...

AI Technical Summary

Problems solved by technology

[0002] So far, there is still a lack of series products such as truly effective, convenient assembly and disassembly, anti-theft and reliable anti-theft screws and special tools for assembly and disassembly, resulting in a large number of easy-to-theft and terrorist-destructive facilities installed outdoors that are constantly being stolen and sold. different degrees of constraints and influences on the production and life of

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