The invention provides a rotary material for a vacuum pump. The material is based on NBR modified phenolic resin, asbestos fiber as reinforcing material, chooses reasonable formulation, is mixed and processed by orthogonal odd number lamination hot pressing. It has the properties of low linear expansion coefficient, heat resistance, wear resistance, medium corrosion resistance, high strength, low density, long service life and so on. It is used in direct-connected vacuum pump (2 x Z-4). The experimental results show that the invention is an ideal rotary material for manufacturing vacuum pumps, air compressors and refrigerators.
1. A composite material of vacuum pump spinner is characterized by: the composite material is composed of reinforcing component – asbestos fiber, matrix – phenolic resin and Nitrile-Butadiene rubber, excipient – hexamethylenetetramine, accelerator M, antioxidant D, zinc oxide, sulfur, stearic acid, zinc stearate and butanone.
2. The vacuum pump rotary vane composite material described in Fig. 1 is characterized in that the asbestos fiber, phenolic resin and nitrile butadiene rubber are proportioned in turn (weight ratio) 55:33.75-40.5:4.5-1.
2:25.
3. The vacuum pump rotor composite material described in the Fig. 1 is characterized in that the ratio of phenolic resin to hexamethylenetetramine (weight ratio) is 100:6-12.
4. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the ratio (weight ratio) of the nitrile butadiene rubber and the auxiliary accelerator M is 100:1-3.
5. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the ratio (weight ratio) of the nitrile butadiene rubber and the auxiliary antioxidant D is 100:1-2.
6. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the ratio of the nitrile butadiene rubber and the auxiliary material zinc oxide is 100:3-6.
7. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the ratio (weight ratio) of the nitrile butadiene rubber and the auxiliary material stearic acid is 100:1-3.
8. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the ratio of the matrix to the auxiliary material zinc stearate (weight ratio) is 100:1-2.
9. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the sulfur ratio (weight ratio) of the nitrile butadiene rubber and the auxiliary material is 100:2-3.
10. The vacuum pump rotary vane composite material described in the Fig. 1 is characterized in that the material shall be oil-boiled after pressing and moulding.
11. The vacuum pump rotary vane composite material described in Fig. 1 and 10 is characterized in that the oil temperature of the oil boiling treatment is 120-160 degrees Celsius.
12. The vacuum pump rotary vane composite material described in Fig. 1 and 10 is characterized in that the cooking time is 2 to 6 hours.
What fields can vacuum pumps be used in: metallurgical and chemical industries. The field of metallurgy and chemical industry also needs the creation of vacuum environment, so the creation of vacuum environment is due to this field, the air quality is relatively low, the air may contain more water vapor, containing relatively more solid particles, how to use and use vacuum pumps in these environments is worth our attention. Notes and research contents.
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