SU1689043A1 - Method of cleaning ferromagnetic articles - Google Patents

Abstract

The invention relates to the abrasive machining of products in a magnetic field. A whole of the invention is to improve the cleaning performance of ferromagnetic products and improve their quality by reducing the percentage of damage to the products. The method consists in cleaning the products suspended in a magnetic field inside a sealed vessel with an abrasive suspension, which is driven into a vibratory-turbulent operating mode by giving the suspension vertical oscillations, while this product is attached to the vertical oscillations in antiphase oscillations of the suspension. At the same time, before the suspension of copebies is suspended, the pressure inside the vessel is reduced to 004–0.05 MPa, and after that the vibratory turbulization mode is reached, the pressure is raised to 0–11–0.12 MP-i, followed by 1 co-stepencho IPCTKJ or.

Description

The invention relates to the abrasive treatment of products on a magnetic field, and the estate to the cleaning of ferromagnetic products in an abrasive slurry.

The purpose of the invention is to increase the production rate of processing and increase the yield of products by reducing the products.

Hell: the same shows a device for implementing the proposed method.

The device contains an airtight vessel 2 fixed to 1 which is filled with suspension 3, for example, corundum mixture with water, electromagnets 4 for the fully ferromagnetic products 5 in the middle part of vessel 2 associated with an additional, vertical vibrator 6 displaced1 .. The device also has a roMiipecoop 7 and a vacuum pump 8, connected through pipelines 9 and 10, having valves 11 and 12. with a sealed vessel 2.

To establish the phasing of the movement of the suspension with the movement of electromagnets 4 in the vessel 2 a sensor 13 is provided for the direction of movement of the suspension, and there is also a phase shifter 14, the input is connected with the sensor 13. And the output is with the input of an additional vibrator 6

The cleaning by the proposed method is carried out as follows.

A vessel 2 filled with 85-90% suspension is loaded, the ferromagnetic products 5 to be cleaned and sealed tightly. By turning on the vacuum pump 8 and opening the valve 12, a vacuum is set in vessel 2 in the range of 0.04 0.05 MPa. When this valve 11 is closed

Then by turning on the electromagnets 4 and creating a transverse magnetic

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floor under | peacock-conditional d / tq magnetic suspension 5 in the middle section of the vessel 2 Immediately ate this vessel 2 brought in a vertical oscillatory motion for a set of g: suspensions n aogrobulization mode. This is ensured (by a vibrator 1, under the action of the cn-opom sus- naTrNa na4Hf aerftofie6aibCfl in the vessel in the vertical direction. Due to the presence of the cross-tort / Mai of the stitch floor of the product 5 compr.

From the bottom of the inlet 1 of the suspension 3 to the vibro-turbulence regime, in order to increase the intensive and accurate, the vertical oscillatory movement of products 5 to the oscillations of the suspension is communicated. For this purpose, the electromagnet 4 is brought into oscillatory motion with the aid of an additional vibrator b, and this movement is carried out according to the signal from the sensor 13 of the direction of movement of the suspension 3 supplied to the phase shifter 14, from which the phase of the supply signal of the additional vibrator 6 is corrected.

After the working vibrotourization mode is established with phase transfer of products 5 and Suspension 3, pressure in vessel 2 begins to increase as the intensity of the process increases. Slapan 2 and or i are closed for this. valve 11, after which the compressor 7 is connected to the vessel. The increase in fvr ier-ш is carried out at ssb) 1yuden -, and the preservation (continuity) of the vibratory procession of the ionic process and at iex ms the parameters of frequency and amplitude of excitation, at which the suspension is injected c t in the vi & pO1 urbanization mode, to avoid the need to increase energy costs. From the moment when, due to an excessive increase in pressure in the vessel, the turbulent process starts to be extinguished, the increase in pressure is suspended and reduced by 5-10% in order to maintain a reliable course of this process. Г1ра “1 pressure in vessel 2 is increased to 0.12 0 13 MPa and then reduced to 0.11 0 12 MPa.

Suspending the increase in pressure is accomplished by closing valve 11 and oi with the key of compressor 7, and a significant decrease in pressure in coi aux 2 is performed by valve 12

PG1sg of performing the specified operations is set to the primary operating mode of cleaning, which is carried out on the basis of continuous operation.

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5 ferrig cores ri U /,;, h h ch1 di di feterovogo ss r / h hchikt fi, 1 0.3 mm height 1G, 0 to -1, jij / trminium vessel diameter 35 g-m /, - mch city Wes mixture with water /

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5After loading the fluorophilic cegenics into the vessel, it closes it; tsl i T, the Cheroza which the vessel communicates with the encoder and the vacuum pump. The vessel does not fill 90% of its volume.

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To create BHjpoi / pD) and. u: ohm mode with paJDe KeHiin with ps.-. oai. of a smart pump at-v o-t Cr nv-f p vessel O S-15 MPa

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regimen in cycnensnvi n vag h gnnoagan: the following pair relations: d) psp chgtot f and the required amplitude; u.y, cole-di- motion movement / da 1j M. -I M 70 G | - ,. . mm; 2) at I c, A; -4 С mm, J) prch 90 Hz Az-4 mm

The amplitude of the oscillations is in addition to the vibrator, which provides against the movement of the zlektrom nito odigkhi

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The time of entry into the First Gateway, the lysoscopy mode is almost wild. p / - x and x is about 7c,

After reaching the vibration process of the free process, the process is i1 iibbbi jp pressure with islia. i, i. a j. ,, process and ROKH.CH s t inoi. im rooiMi, CLEANING CLEANING

With data r, jvt. L.iCi-j-tu and 5 c; iy as 1 pressure 1) for p-0 1 1 s-H-j, in case of 2 to P, 1 MPa in (.. At i dp P-0.11 MPa

U) after P / Reho, /, lg., U. E, vibro ryijfty.ivi; chio1Ili k. . with O and LUG 1NYH DZP TSCH. 0; 1 (/, s, 11 i,,, i

excitation parameters cleaning is carried out in the following months: min t 12 5 min t3 1 5 min

By the end of the aunt .1 microscopic examination of the isotoped ferrites and the hearts, the KSHRGTEYUI was installed. - a decrease in noiselessness by 250 2 (% g), unit energy consumption for cleaning with a Pb-0 of 1 MPa, where 60 Hz o the amplitude A 6 5 mm l n of shhatsts is required by 30-35

The proposed method is simple, its implementation and efficiency in terms of the result achieved: His priming is average for an average yncHMiiHTh energy; with noticeable Me4buinv amplitudes and locations required flflq RELEASE n, the operating mode is usually HMi i. n tr, and i conditions

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rational working PPX JLH i, - excitation vertical; s Kcne i -, and; in this case, the fences in the vessel f ie -, L “are vertically 1 O are-st 5 in npn, oscillations N. i u ir m and about tl and a and i and so with About CIK: "v Increase the output of GODNMH IAC" .. more. introduction of rv nt t. (. gh.

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Claims (1)

Formula and sampling A method for cleaning ferromagnetic bricks, in which the magnetic field is suspended in ferromagnetic materials in a suspension placed in a sealed vessel and the suspension is brought into a turboturbation operating mode for cleaning by excitation of vertical oscillations of the suspension in the vessel, while the products are told vertical oscillatory motion in antiphase to oscillations suspension, characterized in that. in order to increase the cleaning performance and increase the yield of suitable products by reducing the battle, the suspension is introduced into the vibroturbulation mode with a vacuum in the vessel of 0.04-0.05 MPa. after which the pressure is increased to 0.Ί ΙΟ, 12 MPa.