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Machining method for cone seal head

A processing method and cone technology, applied in gas/liquid distribution and storage, pressure vessels, fixed-capacity gas storage tanks, etc., can solve the problems of product scrapping and cracking machine increase, and achieve good reliability and low product scrapping rate Effect

Active Publication Date: 2016-10-26
CHANGZHOU KUANGDA WEIDE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the γ' value is greater than 1.2, the cracking chance of the folded edge 20' will increase, which will easily cause the product to be scrapped

Method used

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  • Machining method for cone seal head
  • Machining method for cone seal head
  • Machining method for cone seal head

Examples

Experimental program
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Embodiment Construction

[0029] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0030] see Figure 2-Figure 6 As shown, the present invention provides a kind of processing method of conical head, and it mainly comprises the following steps,

[0031] S10: blanking, cutting the plate according to the size of the designed cone head, forming the cone shell blank 1 with a fan-shaped structure and the hemming blank 2 with a fan-shaped structure respectively. The material of the cone shell blank 1 and the flanging blank 2 is selected as carbon steel.

[0032] S20: Plate rolling, drawing a reference line 11 on the cone shell blank 1, specifically as image 3 As shown, the number of reference lines 11 in this embodiment is 40, and the extension line of each refer...

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Abstract

The invention provides a machining method for a cone seal head. The machining method comprises the following steps of blanking, plate rolling, welding, die manufacturing, hot stamping, groove treatment and butt joint. According to the machining method, the cone seal head is formed in the manner that a cone shell and a folded edge are welded after being machined. The taper of the folded edge before stamping is smaller than that of the cone shell. Through design of a special stamping die, it can be guaranteed that the specific value of the size of the small hole end obtained after the folded edge is stamped to the size of the small hole end obtained before the folded edge is stamped is in the range where fracturing is not likely to occur. Compared with a traditional method that the small hole end of the cone shell is directly subjected to stamping and chamfering, the machining method is good in reliability and low in reject rate of products.

Description

technical field [0001] The invention relates to a processing method of a head, in particular, to a processing method of a cone head. Background technique [0002] The head is an indispensable and important part of pressure vessel equipment in many industries such as petrochemical, atomic energy, food and pharmaceutical industries. It is the end cover of the pressure vessel and a main pressure-bearing part of the pressure vessel. The quality of the head is directly related to the pressure vessel. long-term safety. [0003] The cone head includes a cone shell and a folded edge, and the folded edge is arranged at the small opening end of the cone head. Usually, the processing method of flanging is to directly punch and expand the small mouth end of the cone shell. When the taper of the cone shell is too large, the flanging is easy to crack due to excessive deformation exceeding the elongation of the material, resulting in scrapped. For details, see figure 1 , is a schematic...

Claims

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Application Information

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IPC IPC(8): B23P15/00F16J13/00
CPCB23P15/00F16J13/00
Inventor 卢定健胡奇云吕向阳
Owner CHANGZHOU KUANGDA WEIDE MACHINERY
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