SU730559A2 - Apparatus for cleaning castings - Google Patents

Description

(54) DEVICE FOR CLEANING CASTING

I

This invention relates to the field of cleaning by pouring a stream of abrasive.

By ocHioiBiHoiMy aiBT. St. No. 569444 (known devices for casting ics, containing cHrCTCMiy-feed. Detonating gas1v, the transfer system of the diffusion powder, the combustion chamber and the control system 1.

The disadvantage of ycTipoftiCTiB is not enough (efficiency; n: 01 processing.

The purpose of the invention - And | Ntencili, as the process of cleaning.

For 3TiQro | 3, for cleaning, it is used to pour the T-micron electrodes placed in the fire chamber between the detonating gas system and the abrasive feed system.

On the fit. 1 shows the proposed structure, 01bp: 1st century; in fig. 2-ip agpea on LL, in FIG. one.

KaiMepa is lurking 1,; late, on the vertical, attached to the bed 2. In the upper part, the station (the candle 3 and the tube 4 and the combustible mixture, for example, acetylene-oxygen, are in a ratio from 1: 1 to 1: 2.5

a decrease in the oxygen ratio of the IB ratios leads to soot formation and, as a result, a decrease in temperature and speed

reactive gases, as well as contamination of the part being cleaned. When the oxygen content is higher (as indicated, TeMineipaTypbi and speedy decrease also occurs. Ktotatanayil, pss: the oxygen drawback is ballast, but the energy is spent in vain.

On the ground there is a device

10 psdas — in Camara A1BR: Asiatic (a powder consisting of a dispenser.a 5 installed on a transport driver, Rally 6, representing with it a pneumatic cable. Tr} bk; fastens perpendicularly to the vertical axis 1) They are connected to an eloktro15 machine with 1kl: pan 7, auger supplying the transporting gas through the tube 8.

Two rows (9, 10, and 11, 12) of electrodes 9–12 are installed in the combustion chamber.

20 Electrodes are arranged in pairs and introduced through insulators 13. Electrodes are connected in parallel and electrically connected by capacitor 14. Conde (I charge the charge,

25 from a DC source (not shown). One row of electrodes can be grounded.

The device for feeding the abrasive powder blower into the chamber through the dispenser 5 contains (see FIG. 2) a feed bin 15,

30, a working bunker 16 connected to the fodder station of a 1N1 tank next to the field //, valve 18, the J9 communal station. The workpiece 20 is installed in the format of the display | 21, which represents an OOBA iB case study, informing about the D301 Gateway-1: Justification | Rotary; 1st, E.

Comfort. Rojstroo ayuotaet as follows.

A cleansing detail 20 after the mezhalichnoy. Bryotnitsi aytam aticchn from a zerchkochnogo bunker (not shown) serves s ZH1I1M th one organizer / manipulator 21, obssechivayuschego message processing. The number of adobe lines. A combustion mixture is fed through pipe 4 IB and burns it with the help of flashlight 3. Detonation 1VOL | Na, V-013, H11y “Asyuschaya as a result. Zzrnva 1G | Oryuchy gas mixture, with a smooth oorsch (300-iSiOOO m / c) and tamlerature (1 -15 thousand; ° C) affects the position of the spore. Pr.I ET | 0: M otraishkhadit imgnazenpoy 1 vyg0 | previous burrs, and also ochlstka 11o, the surface from the demands of a hundred, nozits is especially important, if: for detail in 11С1 following | for behind achi1st; Lookolayiu Time affected by the part is very small (less than 1 millisek, ndy), then the volumetric heating of the part, that is, and the physical and mechanical properties of the material to be processed are kept in a safe way. However, in the case of thick burrs (more than iO, 3 mm short1-11 pulse, it is necessary to disconnect / h CIBTO a bit to remove them. In order to increase the efficiency (p; hoo1), an anti-detonating mixture is suggested to use its electrical key. add solid matter to the gas mixture, in 3 cases, the temperature behind the detonation wave rises from 1-6 thousand ° C to 15 thousand ° C or more.

"The pumping is performed by the following bra: During the time between two explosive eb; kla | dky 1ko, ndensato; pa il4 charged from; 1 | stouch; nick the other side and the tani. After inviigar H1I gvvrvlv and vyso ko ion ionized noToiK (detonation products at the time of being between the next container of electrodes (nalrdmer, 9-11) makes the inter-lacrodate 1Pro, betweenT | 1. Separation in this way is optional. Each pair of electrodes can be separated from a separate / capacitor. In the case of powering the electrodes from one capacitor, the parameters of the electric current are calculated in such a way as to provide a capacitor arc for the | Hzbdbn and the front detonation waves between adjacent in row elekt1rodami. develops in front of the detonation wave and tem1peratura detonadionnoy Bolney speed sufficient to remove any burrs and the part surface clean from contamination if then

HoiKipbiTine applied.

However, for thick fossils (over 0.3 mm) for nakotaryh materials, in order to reduce the thermal effect on the part and increase the mechanical,

detonating mixture of gases (an abrasive grove | 0 K is supplied. With this purpose, a CU is connected (by toggle switch) with the help of Y: pr1y1vlyuyushchevo device (toggle switch) Tsvp a1M1Pulonogo 1pitan and electromagnet; m

De 1CT: By means of a dedication | de1151 detonation valve 18 is opened and a dose of abrasive powder is poured from the buna-sulfur into the transport line 6.

After the HOBioiDO is applied, the KaiMOpbi combustible mixture through the tube 4 controls the fur; H1Iz, m supplies 1KO1MA; NDU to: P; trot 1K of powder from the transport line 6 to the chamber of the Shvol /. The solenoid valve 7 is opened and the dose of abrasive powder is transported into the chamber by means of a carrier gas, such as nitrogen. Heated to a high temperature and accelerated to HIGHLY OKOpoicTiH abrasive powder (IB quality which can

use, for example, alumina with a particle diameter of 20–60 μm) with high energy 1, recovers burrs and removes them.

Usually, the part is installed directly in front of the open end of the st) b | ola, however, when machining light materials, for example, plastic; Recommended item set to

ra.sto shh mm

F o r: m u l a invention

Cleaning device pouring aut.

St. No. 569444, so that, in order to intensify the cleaning process, ol is provided with paired electrodes placed in the combustion chamber between the system (detonating gas feeds and the nodal system of abrasive powder.

Sources of information taken into account;

1. USSR author's certificate number 569444,; cl. B 24 C 5/04, 1974

Claims (1)

A device for cleaning casting according to ed. St. No. 569444, distinguished by the fact that, in order to intensify the cleaning process, it is equipped with paired electrodes placed in the combustion chamber between the detonating gas supply system and the abrasive powder supply system.