Production device for ductile iron pipe fittings
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUBEI ZHENGXIN TUBE
- Publication Date
- 2020-01-17
Smart Images

Figure 1 
Figure 2 
Figure 3
Abstract
Description
technical field
[0001] The invention relates to the technical field of production of ductile iron pipe fittings, in particular to a production device for ductile iron pipe fittings. Background technique
[0002] Nodular cast iron pipe fittings are made of magnesium or rare earth magnesium combined with gold nodulizers added to molten iron before pouring to spheroidize graphite and reduce stress concentration so that the pipe has high strength, high elongation, impact resistance, corrosion resistance, and good sealing. Advantages of pipe fittings; the inner wall is lined with cement mortar, which improves the water delivery environment of the pipeline, increases the water supply capacity, and reduces energy consumption; the nozzle adopts a flexible interface, and the pipe itself has a large elongation rate, which makes the pipeline more flexible. In the buried pipeline, it can work together with the soil around the pipeline to improve the stress state of the pipeline, thereby...