Casting process of ultra-low sulfur phosphorus high temperature and high pressure valve body
A high-temperature, high-pressure, casting molding technology, which is applied to casting molding equipment, casting molds, and casting mold components, can solve problems such as the quality of finished castings not meeting the requirements, high-temperature molten steel is easy to stick to sand, and easy to produce shrinkage cavities, etc., to achieve Avoid cold insulation defects, reduce shrinkage cavities, and avoid flashing effects
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[0022] The technical solutions and beneficial effects of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] like figure 1 , figure 2 An ultra-low sulfur phosphorus high temperature and high pressure valve body casting molding process is shown. The ultra low sulfur phosphorus high temperature and high pressure valve body casting 1 has three nozzles 2. The valve body casting mold is manually operated with resin sand. The casting molding process In the bottom return pouring system, the plane where the centers of the three nozzles 2 are located is the parting surface 4, and the casting is divided into upper and lower halves; the first riser 31 is respectively arranged directly above the three nozzles 2, and the second A riser 31 extends down the pipe mouth to set an inclined riser feeding channel 10, and a second riser 32 is respectively provided above the intersection of each pipe of the valve body casting 1; ...
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