A method of processing a fluid distribution casing

Abstract

The invention discloses a processing method for a fluid distribution cover, which includes the steps of turning, fine milling, and finishing turning; the turning steps are as follows: step 1, a cylindrical blank with a length of 130±0.5 and a diameter of 220±0.5 is flattened by turning The axial end face can be exposed; Step 2, turning the outer circle of the blank; Step 3, drilling a φ50 process hole along the axial direction, with a depth of 48, and boring the inner hole; turning the inner spherical surface; Step 4, turning around, using the tooling body and the inner spherical surface Assembling, clamping and correcting the outer circle from the outer diameter of diameter ≥ φ216, turning the end surface flat; Step 5, turning the outer spherical surface, ensuring the wall thickness 6 ± 0.1 and the total height 126; then remove the flash and burrs; the steps of fine milling are as follows : Clamp the outer circle of ≥φ216, and the tooling body supports it; drill 366-φ9.5±0.2 holes, and then drill 3-φ10±0.2 process holes. The steps of finishing turning are as follows: Step 1, clamping ≥φ216 outer circle Circle, the outer circle, end face and 3‑Φ10±0.1 process hole are used as the reference to correct the workpiece: Step 2, turn off the process chuck with a reserved size of 20 for clamping, and the unit of size is mm.

Description

technical field [0001] The invention relates to a processing method for a fluid distribution cover, and belongs to the technical field of processing methods for shells. Background technique [0002] Because nuclear power plants are more efficient and clean than traditional thermal power plants, nuclear power plants have received more and more attention from the country and the people in recent years, but the safety of nuclear power plants is even more important; voltage regulators are commonly used in nuclear power plants One of the most important equipment, it has the function of regulating pressure, its performance has a very important impact on the safety of nuclear power plants, and the fluid distribution cover is an important part of the voltage stabilizer, and its shape is spherical, which is not easy to clamp , and it is a thin-walled shell with a large number of holes to be processed. It is easy to deform during processing with traditional clamping methods, resulting...

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Problems solved by technology

[0002] Because nuclear power plants are more efficient and clean than traditional thermal power plants, nuclear power plants have received more and more attention from the country and the people in recent years, but the safety of nuclear power plants is even more important; voltage regulators are commonly used in nuclear power plants One of the most important equipment, it has the function of regulating pressure, its performance has a very important impact on the safety of nuclear power plants, and the fluid distribution cover is an important part of the voltage stabilizer, and its shape is spherical, which is not easy to clamp , and it is a thin-walled shell with a large number of holes to be processed. It is easy to deform during processing with traditional clamping methods, resulting in unqualified shape and size.

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