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Large-diameter thin plate sealing membrane and turning anti-deformation method

A sealing film, large diameter technology, applied in metal processing equipment, heat exchanger sealing devices, metal processing machinery parts, etc., can solve the problems of large cutting heat, large processing volume, large deformation, etc., to improve production efficiency, ensure The effect of processing quality and cost reduction

Active Publication Date: 2012-07-18
HARBIN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cutting heat generated during the process of machining the concave surface will cause large irregular bulging deformation of the parts, which is difficult to level
[0003]This type of parts has a large amount of processing, and the cutting heat generated is large, so the deformation generated is large

Method used

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  • Large-diameter thin plate sealing membrane and turning anti-deformation method
  • Large-diameter thin plate sealing membrane and turning anti-deformation method
  • Large-diameter thin plate sealing membrane and turning anti-deformation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for anti-deformation of large-diameter thin-plate sealing diaphragms, the composition of which includes: processing a disc-shaped steel plate piece 1, cutting a concentric steel plate piece 1 with a diameter smaller than the set The impermeable hole with the diameter and thickness of the disc-shaped steel part described above is less than the thickness of the disc-shaped steel part. The hole is firmly spot-welded with the part, and the assembly is put into a water-filled bowl to fix it, and the vertical lathe is used for underwater processing, and the cutting heat generated during the turning process is dissipated in time during the processing.

Embodiment 2

[0025] The large-diameter sheet sealing diaphragm processed by the method described in embodiment 1, the thickness of the described disc is 8-20 mm, the diameter of the described disc is 800-2000 mm, and the processed The diameter of the hole is 720-1800 mm, and the thickness of the hole processed by the disc is 4-10 mm.

Embodiment 3

[0027] For the large-diameter sheet sealing diaphragm described in Example 2, the thickness of the disc is 10 mm, the diameter of the disc is 1771 mm, and the diameter of the hole processed by the disc is 1695 mm. The thickness of the hole processed in the above wafer is 5 mm.

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Abstract

The invention discloses a large-diameter thin plate sealing membrane and a turning anti-deformation method. The large-diameter thin plate sealing membrane is applied to high-temperature high-pressure heat exchanger products. A sealing membrane made of a nickel-chromium-iron alloy SB-168NO6600 material is expensive in price, high in requirements of manufacturing precision and strict in requirements of surface roughness and unevenness of parts due to application of sealing. The turning anti-deformation method of the large-diameter thin plate sealing membrane comprises the steps of: machining a disc-shaped steel plate part into a saucer shape (1); making a blind hole (2) with a concentric diameter smaller than the disc diameter and a thickness smaller than that of the disc on the disc; additionally mounting an auxiliary cushion plate with an enough thickness below a part to be processed; providing an opening on the cushion plate; firmly point-welding the cushion plate with the part at the position of the opening, and placing the assembly in a bowl-shaped part filled with water for fixing; carrying out underwater vertical turning; and timely dissipating the cutting heat produced in a turning process in the machining process. The large-diameter thin plate sealing membrane is applied to the sealing of high-temperature high-pressure heat exchangers.

Description

technical field [0001] The invention relates to a large-diameter thin-plate sealing diaphragm and a method for preventing deformation by turning it. Background technique [0002] For high temperature and high pressure heat exchanger products, there is a sealing diaphragm made of nickel-chromium-iron alloy SB-168NO6600, which is expensive and requires high manufacturing accuracy. Due to its use in sealing, the surface roughness and unevenness of the parts are very strict. . Due to the large diameter and thin thickness of the parts, the processing is very difficult. The cutting heat generated during the process of machining the concave surface will cause large irregular bulging deformation of the parts, which is difficult to level. [0003] This type of parts has a large amount of processing and generates a large amount of cutting heat, so the resulting deformation is large. Contents of the invention [0004] The object of the invention is to provide a large-diameter thin...

Claims

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Application Information

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IPC IPC(8): B23B1/00B23Q3/00F28F11/00
Inventor 于志杰崔仁姝闫芳李翔
Owner HARBIN BOILER
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