CN2239850Y

CN2239850Y - Formation chamber for continuous producing submicron particle

Info

Publication number: CN2239850Y
Application number: CN94228448U
Authority: CN
Inventors: 金寿日; 赵新浩; 杨贺; 郑占响
Original assignee: Shenyang University of Technology
Current assignee: Shenyang University of Technology
Priority date: 1994-04-27
Filing date: 1994-04-27
Publication date: 1996-11-13
Anticipated expiration: 2004-04-27

Abstract

The utility model relates to a generating chamber for continuous producing ultramicrons, which comprises a generating chamber, double electrodes and a continuous feeding box. The utility model is characterized in that the inner part of the generating chamber is provided with two pairs of electrodes, and the outer part of the generating chamber is provided with the continuous feeding box. The utility model has the advantages of novel structure, continuous feeding, continuous production and recombination of ultramicrons and stable combustion of electric arcs.

Description

Produce the generation chamber of ultramicron continuously

The utility model belongs to a kind of device of producing ultramicron, particularly a kind of generation chamber of continuous production ultramicron.

Particle diameter is a kind of novel high-tech material less than the ultramicron (its aggregate is called the ultra micro powder) of 1 μ m, have been widely used in each fields such as machinery, electronics, space flight, chemical industry, metallurgy, medical treatment, as can be used for high-temperature and wear-proof, electrically-conducting paint, electromagnetic shielding material, high-performance magnetism recording materials, integrated circuit base material, chemical reaction catalyst, superconducting film material etc.

DC arc plasma is an a kind of effective thermal source of making ultramicron, at present, generally the direct-current arc of using generates the ultramicron device, be generally boxlike, the generation chamber of this device can only disposable feeding, and the factor amount is limited, can not produce continuously, have only pair of electrodes in addition, therefore can only generate a kind of raw-material ultramicron, can not generate the composite superfine particles of two kinds of materials.In addition, because material melts when evaporating, it highly changes, so electrode gap also changes, makes the arc burning instability.

The purpose of this utility model is to generate the chamber and generate deficiency in the ultramicron process in order to overcome existing device, provide a kind of can raw material without interruption and the generation chamber of two pairs of electrodes arranged.It can produce ultramicron or composite superfine particles continuously, and has improved the quantity of each generation ultramicron, has guaranteed the smooth combustion of electric arc, operates also very convenient.

The purpose of this utility model is achieved in that it comprises generation chamber, bipolar electrode, friction feeding case, it is characterized in that being fitted with the friction feeding case generating the indoor two pairs of electrodes that are equipped with in the outside that generates the chamber.

Do the embodiment explanation below in conjunction with accompanying drawing.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is the structure chart of former generating apparatus.

As shown in Figure 1, generating chamber 1 is the double-walled water-cooling structure, generating the tungsten electrode 2 that is equipped with in the chamber 1 is connected on the water-cooled cathode copper rod 3, tungsten electrode 2 is a pair of electrodes with water-cooled anode copper cylinder 4, this device (generation chamber) has two pairs of electrodes, a friction feeding mechanism is equipped with in the outside that generates the chamber, friction feeding mechanism is by charging ram 6, gear-box 8, buncher 7 is formed, generate in the chamber two pairs independently the electrode of vertical direction can light simultaneously, therefore can produce the composite superfine particles of two kinds of different materials simultaneously, for example the homogeneous mixture of Fe ultramicron and Ni ultramicron is evaporated in the pair of electrodes fusing, friction feeding mechanism can be sent to raw material continuously and generate the chamber, when the top of raw material 5 is melted evaporation and electrode gap when changing, available feeding machanism is boosted the raw material rod, and the variation of electrode gap is to judge by formulating interelectrode electric current and magnitude of voltage.Raw material are that the bar that is processed into certain size is transported to continuously one by one and generates indoorly, by this friction feeding mechanism, can make electrode gap keep constant substantially, have guaranteed the arc stability burning.

As shown in Figure 2, generate the indoor pair of electrodes of having only, i.e. tungsten electrode 2 and anode solid brass bed 4, there is no friction feeding mechanism, when raw material 5 fusing evaporations, electrode gap changes, and makes the electric arc instability, the disposable feed of material, after material has been evaporated, can not continuous feeding, therefore can not produce continuously, because of indoor pair of electrodes, can not generate the composite superfine particles of two kinds of different materials simultaneously again.

The utility model has the advantages that novel structure, but continuous feeding is produced ultra micron continuously Son and composite superfine particles guarantee the arc stability burning.

Claims

1, a kind of generation chamber of continuous living ultramicron, it comprises generation chamber, bipolar electrode, friction feeding case, it is characterized in that being fitted with the friction feeding case generating the indoor two pairs of electrodes that are equipped with in the outside that generates the chamber.