Large-diameter thin plate sealing diaphragm and method for preventing deformation by turning

A technology of sealing film and large diameter, which is applied in the direction of metal processing equipment, heat exchanger sealing device, metal processing machinery parts, etc., can solve the problems of high cutting heat, large processing volume, and difficult alignment, etc., to ensure processing quality, The effect of improving production efficiency and reducing costs

Active Publication Date: 2016-07-06
HARBIN BOILER CO LTD
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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 diaphragm and method for preventing deformation by turning
  • Large-diameter thin plate sealing diaphragm and method for preventing deformation by turning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 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

[0023] The large-diameter sheet sealing diaphragm processed by the method described in Example 1, the thickness of the disc is 8-20mm, the diameter of the disc is 800-2000mm, and the hole processed by the disc is The diameter is 720-1800mm, and the thickness of the hole processed by the disc is 4-10mm.

Embodiment 3

[0025] 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 on the wafer is 5mm.

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Abstract

A large-diameter thin plate sealing diaphragm and a method for preventing deformation by turning. Used in high temperature and high pressure heat exchanger products, there is a kind of nickel - chromium - ferroalloy SB-168NO6600 The sealing diaphragm of the material is expensive, and the manufacturing precision is very high. Because it is used for sealing, the surface roughness and unevenness of the parts are very strict. A large-diameter thin plate sealing diaphragm and a method for anti-deformation through turning, the composition of which includes: processing a disc-shaped steel plate into a dish shape, ( 1 ), making a concentric blind hole on the wafer with a diameter smaller than the diameter of the wafer and a thickness smaller than the thickness of the wafer ( 2 ） , Install an auxiliary backing plate of sufficient thickness under the part to be processed. There is a hole on the backing plate, and the spot welding with the part is firm at the opening, and the assembly is fixed in a bowl-shaped piece filled with water, and the water The vertical lathe processing is adopted below, and the cutting heat generated during the turning process is dissipated in time during the processing. The invention is used for sealing large-diameter thin-plate sealing diaphragms in high-temperature and 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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Patent Type & Authority Patents(China)
IPC IPC(8): B23B1/00B23Q3/00F28F11/00
Inventor 于志杰崔仁姝闫芳李翔
Owner HARBIN BOILER CO LTD
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