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Processing method and application of sealing ring

A processing method and sealing ring technology are applied in the processing field of sealing rings, which can solve the problems of inability to produce, difficult to produce outer diameter sealing rings, restricting the application of polytetrafluoroethylene and modified polytetrafluoroethylene sealing rings, etc. The effect of low failure rate, high promotion and application value, and improvement of processing efficiency and forming accuracy

Active Publication Date: 2019-01-18
BENCI HUARIF MACROMOLECULE MATERIAL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the special properties of PTFE, the processing technology of PTFE and modified PTFE sealing rings at home and abroad is difficult due to the limitations of forming hydraulic presses, forming molds and forming sintering boxes. Produce sealing rings with larger outer diameters (generally limited to less than 2 meters or 3 meters)
Especially for the ultra-large sealing ring with an outer diameter greater than 3 meters, there is no large-scale professional equipment in China, and it is still impossible to produce
This limits the application of PTFE and modified PTFE sealing rings. For example, some super-large equipment cannot use PTFE and modified PTFE seals for sealing or as retaining rings and pistons. Ring etc. use

Method used

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  • Processing method and application of sealing ring
  • Processing method and application of sealing ring
  • Processing method and application of sealing ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Such as figure 1 - Figure 6 As shown, the present embodiment provides a method for processing a sealing ring, the method comprising the following steps:

[0078] Carrying out spiral cutting processing on the raw material 100 of the cylindrical part to obtain an annular sleeve 200 with a threaded outer diameter;

[0079] Cutting the threaded annular sleeve 200 so that the annular sleeve is separated from the threaded part to obtain a spiral ring 300;

[0080] Heating the spiral ring part 300, and then putting it into a shaping mold suitable for the specification of the required sealing ring for shaping, to obtain the ring part 400 with an opening;

[0081] The open section of the annular component is welded to obtain a finished sealing ring 500 , and the outer diameter of the finished sealing ring 500 is 3.3 meters.

Embodiment 2

[0083] Such as figure 1 Shown, present embodiment provides a kind of processing method of polytetrafluoroethylene sealing ring, and this method comprises the following steps:

[0084] (1) Use intelligent numerical control processing equipment to carry out spiral cutting processing on the raw material of cylindrical parts to obtain a ring-shaped set with a threaded outer diameter; wherein, the intelligent numerical control processing equipment is provided with a spiral processing instruction, and the tool is processed according to the spiral processing instruction For cutting processing, the turning diameter of intelligent CNC processing equipment is 0.8 meters to 3.5 meters, and the material of the tool is high-speed steel.

[0085] (2) cutting the threaded annular sleeve so that the annular sleeve is separated from the threaded part to obtain a spiral ring;

[0086] (3) Put the spiral ring piece into a sintering furnace for heating, the heating temperature is 280° C., and th...

Embodiment 3

[0090] Such as figure 1 As shown, the present embodiment provides a processing method of a modified polytetrafluoroethylene sealing ring, the method includes the following steps:

[0091] (1) Use intelligent numerical control processing equipment to carry out spiral cutting processing on the raw material of cylindrical parts to obtain a ring-shaped set with a threaded outer diameter; wherein, the intelligent numerical control processing equipment is provided with a spiral processing instruction, and the tool is processed according to the spiral processing instruction For cutting processing, the turning diameter of intelligent numerical control processing equipment is 0.8 meters to 3.5 meters, and the material of the tool is alloy material and diamond material.

[0092] (2) cutting the threaded annular sleeve so that the annular sleeve is separated from the threaded part to obtain a spiral ring;

[0093] (3) Put the spiral ring piece into a sintering furnace for heating, the h...

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Abstract

The invention belongs to the technical field of machining of sealing pieces and particularly relates to a machining method of a sealing ring and application of the sealing ring. The machining method of the sealing ring comprises the following steps that raw materials of a cylindrical piece are subjected to spiral type cutting machining, and an annular sleeve piece with the outer diameter being in a thread shape is obtained; the thread-shaped annular sleeve piece is cut to enable the annular sleeve to be separated from a thread part, and a spiral annular piece is obtained; the spiral annular piece is heated, then is placed into a shaping mould with the specification being matched with the required sealing ring to be shaped, and an annular part with an opening is obtained; the opening section of the annular part is welded, a finished sealing ring product is obtained, and the outer diameter of the finished sealing ring product is 3-20 m. According to the machining method of the sealing ring and the application of the sealing ring, small mechanical equipment is adopted, the complex and oversized sealing ring can be machined, and the advantages that the process is simple, the raw materials are saved, the product failure rate is low, production cost is low, the machining period is short, and the precision grade is high are achieved.

Description

technical field [0001] The invention belongs to the technical field of processing seals, and in particular relates to a processing method and application of a seal ring. Background technique [0002] In order to prevent fluid or solid particles from leaking from adjacent joint surfaces and to prevent external impurities such as dust and moisture from invading the interior of machinery and equipment, sealing rings are used as part of materials or parts. With the continuous development of modern industry, the application of sealing rings is also increasing. more and more widely. [0003] With the development of modern industry, with the continuous rise of the technical level, large-scale mechanized equipment is becoming more and more popular, and the equipment is getting bigger and bigger, and the size of the required sealing ring is also increasing. However, the existing ultra-large sealing ring processing technology has complex operations, many equipment requirements, and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 李文文刘铭杰吴昊武明德
Owner BENCI HUARIF MACROMOLECULE MATERIAL MFG CO LTD