Indicator for liquid penetrant flaw detection
(57) Abstract:Indicator for liquid penetrant flaw detection contains media indicator fluid and organic dye Noriel B on the basis of the high-boiling fraction Norilsk oil and emulsifier OP-7. Thus as the carrier of the indicator fluid it contains the product of deep hydrogenation of a kerosene fraction having a flash point 80-86°C (HM-3) in the following ratio, wt.%: RJ-3 75, Noriel B 25, emulsifier OP-7 3 g/l of composition indicator of penetrant. Reduced fire risk indicator of penetrant. The invention relates to an indicator penetrants used in penetrant methods of inspection of various parts, components and assemblies, and can be used in automotive, aviation, aerospace and other industries.Known indicator for liquid penetrant flaw detection (patent England N 763885, class 39, 1956; U.S. patent N 2806959, class 250-71, 1957 ), contains as a carrier indicator liquid kerosene cleaned - 40%, organic surface-active agents - 45% and organic phosphors - 15%.The disadvantages of this indicator pins is e increased fire hazards.The closest in technical essence and the achieved result of the present invention is the indicator for liquid penetrant flaw detection (Koryakin A. C., A. Borovikov, S. and Fluorescent capillary. - M.: Mashinostroenie, 1971, S. 228) containing as the carrier of the indicator fluid is kerosene - 65%, gasoline B-70 - 10%, as an indicator of Normal-B - 25%; emulsifier OP-7 - 3 g/l of composition indicator of penetrant (see the end of the description).The flushing fluid from the surface of the water is facilitated with the introduction of the indicator of penetrant surfactant, such as OP-7 - 3 g/L.The specified indicator penetrant has a high fire risk, since the flash point of kerosene 40-48oC, gasoline 34-38oC.The aim of the invention is to reduce the fire risk indicator of penetrant.This objective is achieved in that the indicator for liquid penetrant flaw detection, containing the carrier of the indicator fluid, organic dye Noryl-B and Supplement to the penetrant and emulsifier in the following ratio of components, wt.%:
The carrier of the indicator fluid - 75
Organic crass indicator fluid, unlike the prototype, it contains the working fluid R j - 3. The working fluid R j-3 - a by-product of deep hydrogenation kerosene fraction, is a low-viscosity mineral oil, which is widely used as a coolant for electroerosion machining of metals, and in place of kerosene on the operations of Assembly production. The flash point of the working fluid R j-3 is 80-86oC, which lowers the hazard indicator penetrant.Emulsifier OP-7 is a product of processing of a mixture of mono - and dialkylphenols and ethylene oxide is used as washing and emulsifying surfactants, butter-like or liquid layer.The phosphor of Normal-B - product, made from high-boiling part of the Norilsk oil, a thick oily liquid.Information confirming the possibility of carrying out the invention. In the conditions of production for liquid penetrant inspection was used indicator of the penetrant, which is a solution, where the organic solvent used working fluid RJ-3 (TU 38.1001964-83), the flash point of which 80oC, the aqueous method was prepared as follows: mix the working fluid R j-3 and Normal-B in the ratio of 75% + 25% by weight, i.e., 75 g + 25 g and add to the mixture emulgator OP-7 at the rate of 3 g/l per 1 liter of the mixture.The flash point of the solution 87oC.The test indicator of penetrants on the certified control samples with cracks of different disclosure, it was found that they provide a level of sensitivity not worse than the prototype, that is provide a medium level of sensitivity to detect cracks disclosure of 3 μm or more.The proposed indicator penetrant allows to reduce the fire risk. Indicator for liquid penetrant flaw detection, containing the carrier of the indicator fluid, and an organic dye Noriel B on the basis of the high-boiling fraction Norilsk oil and emulsifier OP-7 on the basis of a mixture of polyethylene glycol ethers of mono - and dialkylphenols, characterized in that as the carrier of the indicator fluid it contains the working fluid R j-3 - a by-product of deep hydrogenation of a kerosene fraction having a flash point of 80 86oC in the following ratio of components (wt.%):
The working fluid R j-3 - a by-product of deep hydrogenation of a kerosene fraction having a flash point of 80 86oC - 75
Organic polyethylene glycol ethers of mono - and dialkylphenols - 3 g/l of composition indicator of penetrant
Rwhere R H (a); C6H5(b); N(CH3)2(c); CH3(d)
FIELD: organic synthesis.
SUBSTANCE: invention provides novel compound: 1-[2-(4,6-dichloro-[1,3,5]triazine-2-ylamino)phenyl]-benzo[d][1,3]oxazine-4-one, characterized by yellow luminescence. Preparation of this compound comprises preliminarily preparing 2-(2-aminophenyl)-benzo[d][1,3]oxazine-4-one by reaction of anthralic acid with thionyl chloride followed by reaction of thus prepared compound with cyanuric acid chloride. Compound is characterized by fluorescence maximum at 560 nm and spare solubility in most organic solvents. The latter enables use of the compound in polygraphic inks as fluorescent pigment.
EFFECT: enlarged assortment of luminophors.
2 cl, 1 dwg
FIELD: luminescent materials.
SUBSTANCE: invention provides novel electroluminescent material comprised of injecting layer, metal chelate complex-based active luminescent layer, hole-transition layer and hole-injecting layer. Luminescent substance is selected from oxyquinolate metallocomplexes of zinc 8-hydroxy-2-methoxyquinolate and zinc 8-hydroxy-2-methylquinolate. Electroluminescent material shows emission in green spectrum region.
EFFECT: increased heat resistance and widened choice of stable green-emitting materials.
2 cl, 3 ex
FIELD: organic chemistry.
SUBSTANCE: invention relates to new individual compounds of benzoxazine class and to a method for their preparing. Invention describes 2-aroylmethylene-2,4-dihydro-1H-3,1-benzoxazine-4-ones of the formula (I): wherein R means hydrogen atom (H) (a), -CH3 (b), -OCH3 (c), -OC2H5 (d), chlorine atom (Cl) (e) eliciting fluorescent properties and stable in UV-light. Also, invention a method for preparing abovementioned compounds. Proposed compounds elicit fluorescent properties and can be used as the parent substances for synthesis of new heterocyclic systems.
EFFECT: improved preparing method, valuable properties of compounds.
4 cl, 6 ex
FIELD: capillary defectoscopy; compositions of the color penetrants.
SUBSTANCE: the invention is pertaining to the color capillary defectoscopy, in particular, to the compositions of the color penetrants applied to the color control over the items of the high-duty. The penetrant contains the mixture of the following composition: xanthene dyes of the yellow-orange fluoresceine and red-dark blue rhodamine of 3-6 %, the surfactant of 10-40 %, the rest - the dissolvent. The ratio of the mixture of the yellow-orange and the dark blue - red dyes compounds 1:2, as the surfactant use neonol or syntanol. The technical result of the invention is creation of the color penetrant of the lowered volatility, the reduced flammability, the extra-high sensitivity ensuring detection of the minimal flaw with the opening width of 0.5-1 microns and the improved reliability and stability of the monitoring of the items in conditions of repairs and operation.
EFFECT: the invention ensures detection of the minimal flaw with the opening width of about 1 micron, improved reliability and stability of the monitoring of the items in conditions of repairs and operation.
FIELD: polymer materials.
SUBSTANCE: invention provides luminescent material showing semiconductor properties and being product of complex polymerization in glow discharge, which is formed as a supported polymer layer located either between electrodes or on any of electrodes. Starting pyrromethene complex is difluoroborate complex of 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene (Pyrromethene 567). Method of preparing luminescent semiconductor polymer material comprises glow-discharge polymerization for 2 to 120 min of Pyrromethene 567 vapors at temperature preferably 250-350°C, pressure 10-1 to 10-2 Pa, and discharge power 0.5-3 W. Resulting luminescent polymer is characterized by thickness preferably 0.001-10 μm, conductivity 1·10-10 to 5·10-10 Ohm-1cm-1 (20°C), luminescence emission maximum in the region of 540-585 nm at band halfwidth 55-75 nm. Polymer is obtained with quantum yield 0.6-0.8 and is designed for creation of film light-emitting devices.
EFFECT: improved performance characteristics of material.
13 cl, 3 ex
FIELD: organic chemistry, luminophores.
SUBSTANCE: invention relates to colorless at daylight organic luminophores, in particular, to novel, water-soluble, colorless luminophores A of the formula:
wherein X means oxygen (O) or sulfur (S) atom; Q means compounds of the formulas and wherein R1 and R2 taken separately or in common mean compounds of the formulas: -NHCH2COOM, -N(CH2COOM)2, Cl wherein M means Na, K, NH4. As comparing with the known colorless organic luminophores - optical whitening agents possessing with blue-sky blue fluorescence only, novel luminophores show fluorescence in the range from blue to yellow-orange color and can be used as components of fluorescent, colorless at daylight, inks for jet printers or stamp dyes.
EFFECT: improved and valuable properties of luminophores.
FIELD: organic chemistry.
SUBSTANCE: invention relates to novel compounds, namely zinc bis-[2-(tosylamino)benzylidene-N-alkyl(aryl, hetaryl)aminates] of the general formula (I): wherein Ts means tosyl; R means (C1-C6)-alkyl with exception isopropyl, (C1-C6)-alkyl-substituted phenyl, (C1-C6)-alkoxy-substituted phenyl with exception para- and ortho-methoxyphenyl, pyridyl, (C1-C6)-alkylpyridyl, or R + R form in common disulfidodialkyl group -(CH2)n-S-S-(CH2)n- wherein n = 1-3, but preferably to zinc bis-[2-(tosylamino)benzylidene-N-alkylidenemercaptoaminates] of the general formula (Ia): Compounds can be used for synthesis of light-radiating organic diode of white and visible light. Fluorescence can be observed in blue region of spectrum with fluorescence bands maximum at 428-496 nm. Quantum yields are 0.2-0.25.
EFFECT: valuable physical properties of compounds.
5 cl, 8 ex