Cast iron artistic manhole cover production process
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 盐城高科道路设施有限公司
- Publication Date
- 2019-11-05
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
Technical field
[0001] The invention relates to the technical field of manhole cover production, in particular to a production process of cast iron art manhole cover. Background technique
[0002] Manhole covers are usually used to cover deep wells under roads to prevent people or objects from falling. Manhole covers are usually metal manhole covers, generally round, used for green belts, sidewalks, motor vehicle lanes, docks and alleys. The function of the manhole cover is relatively simple, that is, to cover the manhole to ensure safety. However, manhole covers are commonly used in various areas of life, such as shopping plazas, living quarters, etc.
[0003] In the prior art, in order to increase the function of beautifying the environment of the manhole cover, a picture is usually drawn on the surface of the manhole cover, and resin is directly applied to the surface of the manhole cover to form a pattern. However, the disadvantage is that the surface pattern layer is easy to...