Process for coating inner wall and outer wall of pipeline and equipment

A coating process, a technology for inner and outer walls, applied to the surface coating liquid device, coating, pretreatment surface, etc., can solve the uneven thickness of the coating layer on the surface of the pipeline, cumbersome processing operations, high cost of coating operations, etc. problems, to achieve the effect of facilitating streamlined production, controlling coating quality, and reducing production costs
CN101549341BInactive Publication Date: 2011-08-10ๆœ้“้พ™
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ๆœ้“้พ™
Publication Date
2011-08-10
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a process for coating an inner wall and an outer wall of a pipeline and equipment suitable for the process. By adopting the process and the equipment, the coating of the inner wall and the outer wall of the pipeline can be once completed through integral plastic dipping so as to facilitate the large-scale streamline production; in addition, coating layers of the inner walland the outer wall of the pipeline can be guaranteed to be uniform, and the coating quality also can be controlled; moreover, the utilization rate of plastic powder can be effectively improved, thereby the production cost is reduced. The invention has reasonable and continuous process and lower production cost and is beneficial to greatly improving the production speed and forming large-scale continuous production.
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Description

technical field

[0001] The invention relates to a pipeline coating process and related equipment, in particular to a coating process and related equipment for simultaneously coating the inner and outer walls of a pipeline. Background technique

[0002] With the continuous development of social economy and the increasing level of urban construction and industrial production, the performance requirements for the pumping and discharging pipes in industrial production, urban water supply and drainage pipes, power threading pipes and communication cable optical cable pipes are also increasing. The pipes widely used in the above fields generally have two materials, one is PVC (polyvinyl chloride) pipes, and the other is metal pipes (mainly steel pipes and cast iron pipes). PVC pipes made of polyvinyl chloride are light in weight, easy to install and replace, bright in color, and ideal in chemical corrosion resistance, but they have the disadvantages of poor pressure resistance and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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