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Vacuum pump vane and its producing method

A manufacturing method and vacuum pump technology, which is applied in the direction of pumps, machines/engines, mechanical equipment, etc., can solve the problems of easy damage to the pump cavity, affect the working efficiency and service life of the whole machine, and high noise, and achieve the effect of low friction coefficient

Inactive Publication Date: 2011-05-25
SHANGHAI RENPHEN COMPOSITE MARERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the traditional rotary vane vacuum pump, cast iron or steel rotary vanes are mostly used, which not only makes a lot of noise when used, but also easily damages the pump chamber, affecting the working efficiency and service life of the whole machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A method for manufacturing a vacuum pump rotary vane, the method comprising the following process steps:

[0048] (1) The glass fiber is surface treated with a silane coupling agent;

[0049] (2) The surface-treated glass fiber is impregnated with bisphenol A (DGEBA) type epoxy modified phenolic resin glue, mixed with anti-friction material talcum powder and mica powder in the glue, and its solid content is 40~60% by weight , after drying at 80-100°C, the volatile matter content is lower than 2% by weight;

[0050] (3) Put the above-mentioned soaked glass adhesive cloth into the mold and carry out thermocompression molding, and its process parameters are as follows:

[0051] Pressure: 300kg / cm 2 ,

[0052] Temperature: 160°C,

[0053] Time: 20 minutes;

[0054] (4) Put the shaped billet into a sintering furnace, and carry out stress relief and annealing treatment in an oxygen-free state at a temperature of 200° C. for 25 minutes;

[0055] (5) Finally, process acco...

Embodiment 2

[0066] A method for manufacturing a vacuum pump rotary vane, characterized in that the method comprises the following process steps:

[0067] (1) The glass fiber is surface treated with a silane coupling agent;

[0068] (2) The surface-treated glass fiber is impregnated with bismaleimide (BMI) modified phenolic resin glue solution, which is mixed with anti-friction material talcum powder in the glue solution, and its solid content is 40~60% by weight, after 80 Dry at ~100°C so that the volatile content is less than 2% by weight;

[0069] (3) Put the above-mentioned soaked glass adhesive cloth into the mold and carry out thermocompression molding, and its process parameters are as follows:

[0070] Pressure: 200kg / cm 2 ,

[0071] Temperature: 170°C,

[0072] Time: 30 minutes;

[0073] (4) Put the shaped billet into a sintering furnace, and carry out stress relief and annealing treatment in an oxygen-free state at a temperature of 170° C. for 30 minutes;

[0074] (5) Final...

Embodiment 3

[0077] A method for manufacturing a vacuum pump rotary vane, characterized in that the method comprises the following process steps:

[0078] (1) The glass fiber is surface treated with a silane coupling agent;

[0079] (2) The surface-treated glass fiber is impregnated with silicone modified phenolic resin glue solution, which is mixed with antifriction material talcum powder, mica powder, vermiculite powder, kaolin powder, and its solid content is 40~60% by weight, After drying at 80-100°C, the volatile content is lower than 2% by weight;

[0080] (3) Put the above-mentioned soaked glass adhesive cloth into the mold and carry out thermocompression molding, and its process parameters are as follows:

[0081] Pressure: 350kg / cm 2 ,

[0082] Temperature: 150°C,

[0083] Time: 15 minutes;

[0084] (4) Put the shaped billet into a sintering furnace, and carry out stress relief and annealing treatment in an oxygen-free state at a temperature of 190° C. for 20 minutes;

[0085]...

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Abstract

The present invention relates to one kind of vacuum pump vane and its production process. The vacuum pump vane is made with modified phenolic resin 30-60 wt%, glass fiber 30-70 wt%, and friction reducing material 10-30 wt%. The production process includes surface treatment, soaking, hot pressing to form, sintering, machining and other technological steps. Compared with available technology, the present invention has the features of low friction coefficient, high wear resistance, high heat resistance, no delamination, etc.

Description

technical field [0001] The invention relates to a rotary vane for a rotary vane vacuum pump and a manufacturing method thereof. Background technique [0002] Rotary vane vacuum pump is the most widely used vacuum pump at present, and has been widely used in various fields such as chemical industry, electronics, metallurgy and medicine. [0003] Its main moving parts are the rotor and the rotary vane. The power is supplied to the rotor, and the rotor rotates and drives the rotary vane to rotate synchronously. Therefore, the structure of the machine is simple and compact, the size of the whole machine is small, and there are few parts. Moreover, it has high working reliability, convenient use, easy maintenance and high volumetric efficiency. [0004] In the rotary vane vacuum pump, there is sliding friction between the rotor and the rotary vane, and between the rotary vane and the pump chamber, which is prone to large wear and mechanical losses. Therefore, the requirements f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08K7/14F04C25/02
Inventor 张定权
Owner SHANGHAI RENPHEN COMPOSITE MARERIALS