RU2000847C1 - Method and device for applying coating of alumina using detonation technique - Google Patents

Abstract

The use of coatings for hardening parts operating under conditions of increased corrosion, erosion and abrasion in various engineering industries, to improve the quality of coatings. The essence of the formation of detonation coatings from alumina is carried out by a series of multilayer stains, each of which is obtained by applying single spot on top of each other so that the temperature of the coating at the moment is applied in torg / gf .. and ,,., and the unit spot of the series is at least 1100 ° C, the formation of the coating is carried out using a device consisting of N detonation barrels, which are directed to one point of the sprayed surface, installed with the possibility of movement in front of the sections of the barrels, and equipped with a synchronization unit. Next consists of a clock generator (N - 1) timers and pulse shapers. In this case, the output of the clock generator is connected to the first barrel and to the inputs (N - 1) of the timers and outputs) of the aimers with the inputs of the pulse shapers, the outputs of which are connected to the other trunks 2 zpf-ly , 1 ill.

Description

The invention relates to the deposition and detonation of about 1 ppm of aluminum oxide and mo ur (read more

 and those working on conditions increased, / um - kzionnoy, aerosion and abra1i .lPHCiEH 1 V G), l rlX

., t ,. rienia

I-1 about the village of Otonats, youth.

 NIGHT HOUSING, including detonation (apneumine powder)

(from Il Kirovannogo nike / u and When Nan

i1 1,1 so. / coatings high vi firmly

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 n-on strength and sang (i .., a JT three u. n o.ot ..oc, 1b covered by 1 s-j I, jfipaiOBd

..v o f junkop strucures of metal t-mm around each particle М О Odmo

In addition, some are served by 3 SROIGTB (IOL.OCTOHKOC1 CORROSION. GTPIKPS11;

, i due to availability in

Cr TMI ENVIRONMENTAL OLICHS Mr. PJ lpt and

 1 | which is gsm g n (fi jh / nnat-M. - j - wear and corrosion., IKK T t MjcriHif

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r ge method of detonation HdMer h and by

rMTIIIISOXIDASYMPN l

This is a detonation .I, IIJKH explosive mixture of gases and powder L0 i initiating detonation

This method was carried out for the detonation of covering for detonation nangshening with a barrel, blocks for securing gesov and powder, a block of eggs and a dtn for detonation, a block of movement relative to the section of the barrel and the block of movement of the article with the moment of initiation of detonation

With the indicated method of applying a detonation coating, the structure of ty is formed from - and a A1gO3. It is known that modifications of the u- and a phases of A1203 having different values of 4 isomechanical properties (hardness modulus of elasticity) have a different level of service properties

High temperature modification and A, 0z has higher

WEAR PROPERTIES AND EROSION GOICOG 1 llli

tervag operating temperatures

Thus, an increase in the content of a- in the coating is higher than the characteristics

During the formation of detonation humectum, the process of cr. Ga / 1 proceeds and most of the particles are distilled to a liquid state. At the same time, the cooling rates are

hk) p rod HOI resistant h PC 1c) in), L03 Prsip, uh (h

lu i neither ° c-iAI O} you can throw i by cutting the tdtpc (h and i rt

 glo) until about ./o no less.

1100 C h and jf ° HT tn h b 11 rpt

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ni-caps rych i m h g increase C (. (.,. i g-AI; Oj

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I s m o) r, jd i (Г I j i h i Mi tjon i i and

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 It i i consists of 1G TPI iio 1 generator with d / iri and with the first f ||. IM p with inputs (Г М iri о ч Зц (and i glyphs with

M1 | f F - k | N P l rr j poohOD KO 1 0,) - t H i f) i (i AXIS BUT С

f Clr c in m t - i 10L jMh

h fj, i tonation

i i i 1

v detonation

i, PS b 1OKOM 1

n 1 SP 1) handicap (i / iOr a 6 perei i cut

The trunks 1 are directed to a single point on the surface of the sprayed product, which is moved in front of the sections of the trunks through the block 6 person.

Pa oiaeT device as follows

Or a clock generator 3 sets the frequency of detonation barrel shots 1 Each pulse of the clock initiates detonation in all trunks, and in the first barrel of detonation is initiated directly from the clock pulse, DO the second 1 through the time interval specified by the first timer, and from the first formagell imulson in the third the barrel through the time delay specified by the second th rum and from the second pulse shapers and so on. The delay time is selected on the order of 10 J 10 s. Thus, at one point on the surface and DOTAP lozhet- (edipichny n t "n time shift determined emom timer delay time picking; RTGYA mayor that the subsequent DOE krb single spot and bear a.) present with previous nzosshvshee s temperature less than 1100 ° C.

Example 1: Experimental work was carried out on the deposition of aluminum OXIDER in accordance with this particular use of the proposed device. We used a device for detonating it of non-deposition of coatings, including two feet, 5 installed in this way (then spraying was carried out in one spot , For spraying, use a mixture of a / acetylene

gaseous mixture. COATING was carried out by a series of shots ir - so that the time interval between the initiation of detonation of gas mixtures in the industrial and rotor trunks of the device should be no more than 2 10 s.

MPNRR 40 MP R-NT RNOS OYAIO l PLT1CH. h

raficheskie from the study of the coating of cocoa e and o containing ie a-A120z increased: g 5, up to 40% by -, learning from the experience of the prototype;

The tribal tribunals should have single couples training made by - according to the proposed cng nv mri legs. friction with a speed of about 2G m / s, and so on at narrows of 20.0 and 30 0 Ml 1 ppti i i there is an increase in wear of o-LI. kog i and carry dei abilities

1 / MYUSO PYKSGT-, nUPHi-p ok po Eli

an s creep p wear resistance Ij oplde nq-T oh how D

q s

As Ah Ah ichins tznosz q Udeg my pressure n} ri tsnch. water, g 1 heat in 1 3 5 ji 1 a

(5.) P.Rnt CUJA 1 3091548 K. 42F,, 6 193З

 VGS et al Detonatspg nnmg yu krit om shinosorenii L GIai foreign digestion 1982 with 10-1, Fig 11

AUGORS certificate of the USSR No. 83 ° o89 K, I B OL3 B 7/20 1981

FORMULI - about b,) f t t n and to METHOD lF ion / HUOMIIOIO OUR FROM MON COVER

TIUM FROM ALUMINUM OXIDE AND S1ROYGPYU FOR LNGOOSUIN CTBJI STUMP

1. The method of detonation deposition of alumina coatings consists in supplying a hot mixture of gases and alumina powder to one shaft bent at one end and initiating detonation, characterized in that it is formed by series of multilayer stains, each of which is obtained by applying single n te dru | on each other so that the coating temperature at the moment of application of the second and subsequent unit stains of the series is not less than 1100 С

2 Settlement of ionic inconsequential with digging ni oxy / 1 aluminum.

) a smaller barrel with blocks under, h and i it L о and powder and initiated by a “nation block of movement relative to the cut of the barrel, except for -1 so that it is equipped with N - 1 additional trunks with blocks for supplying gas and powder and detonation initiation units, MOMf-c synchronization unit for detonation initiation which consists of a clock m 1 rju-meroo and pulse shapers, while the output of the clock generator is connected to the first barrel and to the inputs N 1 tap, ditch, and the outputs of the timers to the inputs of the 1 and pulse arrester outputs oedineny respectively with ostal1n sgvopami wherein all N sections stnolsh for channeling a single point sprayed emoy pg j-, j ited parts

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