Conical head forming and manufacturing process

Abstract

The invention discloses a conical head forming and manufacturing process, and relates to the technical field of conical head machining. The conical head forming and manufacturing process comprises the following steps of S1, grooving a conical head; S2, forming the conical head; and S3, welding the conical head. According to the process, firstly, a cut wafer is placed below an annular fixing frame, then the wafer moves upwards through cooperation of a tensile machine and a tapering die, the outer diameter of the wafer is limited by the annular fixing frame, so that the center position of the wafer moves upwards along with the tapering die, the diameter of the bottom of the wafer is gradually reduced in the moving process, trapezoidal grooves in the corners of the wafer are gradually closed, and the conical head is finally formed, so that the problem that the tapering head has creases in the stamping process is solved, the production quality of the conical head is improved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of tapered head manufacturing, in particular to a tapered head molding manufacturing process. Background technique [0002] A conical head is a head whose shell surface is conical. The characteristic is that the speed of the medium can be uniformly changed when the medium passes through, which is convenient for unloading the viscous liquid and the material containing solid particles, but the mechanical properties are poor, and the discontinuous stress caused by the sudden change of shape at the connection with the cylinder or the joint is relatively large. In order to reduce the discontinuous stress, the large end or small end of the conical shell can adopt a flanged structure or a partially thickened structure with a circular arc transition. my country's pressure vessel design code requires: when the half-cone angle is greater than 30°, the large end of the conical shell should adopt a folded structure; wh...

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Problems solved by technology

[0004] The embodiment of the present invention provides a conical head forming process to solve the problem that the existing conical head is stamped directly through a mold in the re-stamping process, and creases are prone to appear during the re-stamping process, which affects the conical head. production efficiency and quality issues

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