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Blank for tube plate forming, manufacturing method of blank and tube plate in-vitro forging method

A manufacturing method and blank technology, which can be used in manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc., and can solve the problem of inability to integrally form super-large tube sheets.

Pending Publication Date: 2021-11-09
TIANJIN HEAVY EQUIP ENG RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a blank for tube sheet forming and its manufacturing method, and a tube sheet in vitro forging method, which solves the problem that existing presses cannot The problem of integral forming of ultra-large tube sheets exceeding the span by free forging

Method used

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  • Blank for tube plate forming, manufacturing method of blank and tube plate in-vitro forging method
  • Blank for tube plate forming, manufacturing method of blank and tube plate in-vitro forging method
  • Blank for tube plate forming, manufacturing method of blank and tube plate in-vitro forging method

Examples

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Embodiment 1

[0067] This embodiment provides a tube sheet forming blank, see Figure 1 to Figure 2 , including the internal forging area 71 and the external forging area 72 located at the edge of the internal forging area 71, the thickness of the internal forging area 71 is smaller than the thickness of the external forging area 72, the thickness h of the internal forging area 71 is the final dimension of the tube sheet forming, and the blank along the The cross-sectional shape in the axial direction is I-shaped, that is, the shape of the above-mentioned blank is thin in the middle and thick in the periphery.

[0068] During implementation, the internal forging area 71 of the blank is completed in the forging equipment (for example, free forging hydraulic press, crank press, screw press, friction press or forging hammer), and the in vitro forging area 72 of the blank is completed outside the forging equipment , in the in vitro forging process of the blank, since the internal forging area 7...

Embodiment 2

[0082] This embodiment provides a method for making a blank for tube sheet forming, see image 3 , for making the tube sheet forming blank provided by Embodiment 1, the above-mentioned manufacturing method includes the following steps:

[0083] Step 1: Upsetting and unloading the steel ingot to obtain the original billet;

[0084] Step 2: In the forging equipment, thicken and widen the original billet to obtain the billet to be processed;

[0085] Step 3: Forging the central area of ​​the billet to be processed to form an internal forging area 71, and the undivided and finished part is an external forging area 72, so as to obtain a tube plate forming billet.

[0086] Compared with the prior art, the beneficial effects of the manufacturing method of the tube sheet forming blank provided in this embodiment are basically the same as those of the tube sheet forming blank provided in Embodiment 1, and will not be repeated here.

[0087] Specifically, in the above preparation meth...

Embodiment 3

[0091] This embodiment provides an in vitro forging method for a tube sheet, comprising the following steps:

[0092] Make the blank of tube sheet forming, the preparation method of blank is the preparation method of the tube sheet forming blank that embodiment two provides;

[0093] Outside the forging equipment, the external forging area 72 of the blank 7 is forged by using the hammer 2 of the tooling auxiliary tool to obtain a tube plate.

[0094] Compared with the prior art, the beneficial effects of the in vitro forging method for the tube sheet provided in this embodiment are basically the same as those of the tube sheet formed blank provided in Embodiment 1, and will not be repeated here.

[0095] Specifically, the above-mentioned tooling accessories, see Figure 4 to Figure 5, including beam body 1, hammer head 2 and forging platform 3, define one end of beam body 1 as the forging side, and the other end of beam body 1 as the non-forging side, that is to say, hammer h...

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Abstract

The invention discloses a blank for tube plate forming, a manufacturing method of the blank and a tube plate in-vitro forging method, belongs to the technical field of tube plate forging, and solves the problem that an existing press cannot integrally form an ultra-large tube plate exceeding a span in a free forging manner. According to the blank for tube plate forming, the manufacturing method of the blank and the tube plate in-vitro forging method, the blank comprises an in-vivo forging area and an in-vitro forging area located on the edge of the in-vivo forging area. The thickness of the in-vivo forging area is smaller than that of the in-vitro forging area, and the thickness of the in-vivo forging area is the final size of tube plate forming. The manufacturing method comprises the steps that in forging and pressing equipment, an original blank is subjected to upsetting and broadening; and the center area of a to-be-treated blank is forged, the in-vivo forging area is formed, the non-concave and non-finished part is the in-vitro forging area, and therefore the blank for tube plate forming is manufactured. The blank for tube plate forming, the manufacturing method of the blank and the tube plate in-vitro forging method can be used for forming of a tube plate.

Description

technical field [0001] The invention belongs to the technical field of tube plate forging, and in particular relates to a blank for forming a tube plate, a manufacturing method thereof, and an in vitro forging method of a tube plate. Background technique [0002] Super-large tube sheets are an important part of manufacturing super-large chemical containers. With the development of my country's chemical industry, the installed capacity of reactors is gradually increasing, and the diameter of super-large tube sheets required is also increasing. Alkanes or ethylene glycol refinery reactors have a diameter of nearly 10m, and the diameter of the required tube sheet is nearly 9 meters. Since the diameter of tube sheets of this size has exceeded the column spacing of all domestic free forging and forging equipment, the manufacture of super-large tube sheets has to adopt a multi-lobe tailor welding manufacturing process. This process has high manufacturing costs and low material util...

Claims

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Application Information

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IPC IPC(8): B21J7/04B21J13/06
CPCB21J7/04B21J13/06
Inventor 杨晓禹刘凯泉李行波刘敬杰许四海周岩胡杰
Owner TIANJIN HEAVY EQUIP ENG RES
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