Machining and forming process for corrosion-resistant screw for ship
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 佛山市南海区巨人化学品制造有限公司
- Publication Date
- 2021-04-23
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of screw production, in particular to a process for forming corrosion-resistant screws used in ships. Background technique
[0002] The screw is a tool for tightening the parts of the object step by step by using the physical and mathematical principles of the oblique circular rotation and friction of the object. Screw is a general term for fasteners, a daily colloquial language. Screws are indispensable industrial necessities in daily life: tiny screws used in cameras, glasses, clocks, electronics, etc.; general screws for TVs, electrical products, musical instruments, furniture, etc.; large screws for engineering, construction, and bridges. Screws and nuts; transportation equipment, airplanes, trams, automobiles, etc. are used together with large and small screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important. Screw is...