CN102808192B - Water-based cleaning agent for welding of zirconium material and use method thereof - Google Patents
Water-based cleaning agent for welding of zirconium material and use method thereof Download PDFInfo
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- CN102808192B CN102808192B CN201210265701.9A CN201210265701A CN102808192B CN 102808192 B CN102808192 B CN 102808192B CN 201210265701 A CN201210265701 A CN 201210265701A CN 102808192 B CN102808192 B CN 102808192B
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- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000003466 welding Methods 0.000 title claims abstract description 91
- 229910052726 zirconium Inorganic materials 0.000 title claims abstract description 91
- 239000000463 material Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002808 molecular sieve Substances 0.000 claims abstract description 9
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 9
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 10
- 229920004890 Triton X-100 Polymers 0.000 claims description 8
- 239000013504 Triton X-100 Substances 0.000 claims description 8
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 claims description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 18
- 230000007797 corrosion Effects 0.000 abstract description 13
- 238000005260 corrosion Methods 0.000 abstract description 13
- 238000005498 polishing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- ZPIRTVJRHUMMOI-UHFFFAOYSA-N octoxybenzene Chemical compound CCCCCCCCOC1=CC=CC=C1 ZPIRTVJRHUMMOI-UHFFFAOYSA-N 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 235000019795 sodium metasilicate Nutrition 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 description 15
- 239000002253 acid Substances 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- 230000010287 polarization Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 239000010953 base metal Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008233 hard water Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002000 scavenging effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical class [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a water-based cleaning agent for welding of a zirconium material and a use method of the water-based cleaning agent for the welding of the zirconium material, and belongs to the technical field of the welding of the zirconium material. The cleaning agent consists of following components according to mass percent: 0.5-2% of polyethylene glycol octyl phenyl ether, 5-8% of fatty alcohol-polyoxyethylene ether, 0.5-2% of 4A molecular sieve, 2-6% of sodium metasilicate, 3-5% of ethylene glycol butyl, 0.1-0.2% of 5-chloro-2-methyl-4-isothiazole-3-ketone and the rest of ionized water. The use method is as follows: 1, putting a groove of a welding component of the zirconium material into the water-based cleaning agent to be soaked; 2, polishing a welding surface through waterproof abrasive paper; 3, carrying out ultrasonic processing to the welded groove through the ionized water; 4, spraying the welded groove through the ionized water; 5, drying; and 6, welding. According to the adoption of the water-based cleaning agent for the welding of the zirconium material and the use method of the water-based cleaning agent for the welding of the zirconium material, the environmental pollution is reduced, the cleaning effect of the welded groove is observably improved, the welding defect is avoided at a weld joint, and the corrosion resistance of the weld joint of the welding component is improved.
Description
Technical field
The present invention relates to a kind of welding of zirconium material aqueous cleaning agent and using method thereof, adopt aqueous cleaning agent and using method thereof in the present invention to weld front surface processing to industrial zirconium material weldment bevel for welding, can ensure zirconium material weldment weldquality, the corrosion resistance nature that improves zirconium material weldment weld seam, belongs to welding technology field.
Background technology
Industry zirconium material refers to that hafnium content is lower than 5% zirconium alloy, have density low, than strong high, corrosion-resistant, the feature such as processing characteristics is excellent, thereby be widely used in the numerous areas such as nuclear energy, chemical industry, Chu Qing, optics, medical and health, the preferred material of the chemical industry equipments such as Chang Zuowei pressurized vessel.In industrial reality, due to normal use is the weldment of zirconium material, and zirconium activity is at high temperature higher, during welding, if it is unclean that bevel for welding is processed, easily and the remaining metal oxide of weldment groove face, greasy dirt etc. react, form intermetallic compound, be mingled with, the welding flaw such as pore, have a strong impact on the welding quality of zirconium material weldment, thereby cause zirconium material pressurized vessel or pipeline equipment that burn into fracture phenomena occurs in commissure, cause serious security incident and heavy economic losses.
The traditional welding front surface treatment process of zirconium material weldment groove is pickling.Conventional Acidwash solution is by industrial hydrofluoric acid HF, industrial nitric acid HNO
3with water H
2o, the proportional arrangement that is 1:5:4 according to volume ratio forms.After the pickling of weldment groove, again through polishing machine polishing, the cleaning of stainless steel wire wheel, polishing wheel polished finish, finally use acetone or dehydrated alcohol to clean, complete the surface treatment work before welding.Owing to using a large amount of pernicious materials of strong acid class in traditional acid washing method, not only environment is caused to very big pollution, and the weldment easy residual greasy dirt in surface and metallic compound, in follow-up welding process, form welding flaw, have a strong impact on weldquality, reduce the corrosion resistance nature of weld seam, restricted the application and development of industrial zirconium material.
Summary of the invention
Object of the present invention, is for the problem that before industrial zirconium material weldment welding, traditional pickled surface treatment process exists, and has proposed a kind of welding of zirconium material weldment water base metal cleaning agent and using method, for the surface treatment before the welding of zirconium material weldment.Application the present invention, both can reduce environmental pollution, can significantly improve again the cleaning performance of bevel for welding, prevented from commissure, forming welding flaw, improved the erosion resistance of weldment weld seam.
The zirconium material weldment welding aqueous cleaning agent that the present invention proposes, comprises following component according to mass percent:
Triton X-100 0.5 ~ 2%;
Fatty alcohol-polyoxyethylene ether 5 ~ 8%;
4A molecular sieve 0.5 ~ 2%;
Starso 2 ~ 6%;
Glycol butyl 3 ~ 5%;
CMIT 0.1 ~ 0.2%;
Deionized water surplus.
According to aforementioned proportion, prepare each component, be heated to 40 ~ 50 ° of C and be stirred to dissolving completely, be zirconium material welding aqueous cleaning agent of the present invention.
According to the formula of above-mentioned aqueous cleaning agent, preparation be applicable to that industrial zirconium material welding front surface processes aqueous cleaning agent, use in accordance with the following methods:
Step 1, industrial zirconium material weldment to be welded is put into above-mentioned gained aqueous cleaning agent soak 5 ~ 15min;
Step 2, with 200 ~ 400# liquid honing bevel for welding, bruting process all should be carried out in aqueous cleaning agent, makes bevel for welding occur that metalluster and roughness are less than Ra6.3;
Step 3, the bevel for welding after above-mentioned processing is put into the ultrasonic cleaner that deionized water is housed carry out supersound process, the temperature of controlling deionized water is 40 ~ 50 ° of C, and ultrasonic frequency is 50 ~ 70KHz, and ultrasonic treatment time is 1 ~ 3min;
Step 4, weldment after ultrasonic cleaning is taken out, use deionized water spray bevel for welding surface, the time is 1 ~ 3min;
Step 5, the zirconium material weldment after spray is processed is put into vacuum drying oven dry, it is 100 ~ 140 ° of C that temperature is controlled, and the time is 20 ~ 40min, and processing finishes.
After finishing, processing can carry out welding to zirconium material weldment.
A kind of zirconium material weldment of the present invention is aqueous cleaning agent and using method for welding, solved industrial zirconium material weldment because of bevel for welding surface cleaning unclean, cause in commissure, easily producing this technical barrier of welding flaw, the groove welding front surface that is applicable to the weldprocedures such as argon tungsten-arc welding, plasma arc welding, Laser Welding is processed.Compare with traditional acid cleaning process, easy to operate, little to human body and surrounding environment influence.
Feature of the present invention is to utilize the synergy of tensio-active agent, by the greasy dirt with industrial zirconium material surface, there is wetting, osmosis, make greasy dirt weaken or offset at the sticking power on industrial zirconium material surface, again by the method for ultra-sonic oscillation and spary, accelerate greasy dirt to depart from zirconium material surface and enter emulsified in clean-out system, dispersion, thereby reaching cleaning object.
Triton X-100, fatty alcohol-polyoxyethylene ether that the present invention adopts are the chemical composition that clean-out system industry is known.Wherein Triton X-100 is a kind of nonionic surface active agent, has excellent emulsification, performance soaks, spreads, deoils.The biodegradability of fatty alcohol-polyoxyethylene ether is good, can under the environment of low temperature, low bubble, hard water, use, and is suitable as emulsifying agent, dispersion agent, clean effect remarkable; 4A molecular sieve, glycol butyl, Starso, as washing assistant conventional in water base metal cleaning agent, play chelating, inhibition, froth breaking, solubilising, stablize the effects such as clean-out system.Wherein 4A molecular sieve has a lot of holes, thereby has very large adsorption surface, extremely strong to the adsorptive power of nonionogenic tenside, and in solution, being alkalescence has certain shock absorption.This material, to human body, fish, algae safety non-toxic, has avoided the clean-out system of P contained compound because wastewater treatment is improper, to cause this problem of body eutrophication simultaneously; In addition this water base metal cleaning agent combines with CMIT sanitas, thereby acidproof, alkaline-resisting, the anti-hard water of industrial zirconium material in actual production and the performance of microbiological corrosion are significantly improved, thereby reach the object that improves industrial zirconium material erosion resistance.
In sum, the present invention compares with existing conventional art, has advantage as follows: (1), strong detergency, anti-hard water, is not subject to temperature limitation during use.(2), in clean-out system without washing assistants such as highly basic, phosphorus, Sodium Nitrites, safe and harmless, environmentally friendly.(3), metal is not corroded and inhibition favorable rust preventing effect, significantly improve the erosion resistance of industrial zirconium material weldment.So this aqueous cleaning agent is to carry out surface-treated environment-friendly type water based cleaning agent before a kind of applicable industrial zirconium material welding.
Accompanying drawing explanation
Fig. 1 mother metal and the welding wire trade mark, specification and chemical composition;
The main welding condition of Fig. 2 argon tungsten-arc welding.
Fig. 3 aqueous cleaning agent assay;
Fig. 4 cleans zirconium material, the metallographic structure of gained weldment commissure according to traditional acid cleaning process;
Fig. 5 cleans zirconium material, the metallographic structure of gained weldment commissure according to aqueous cleaning agent formula in embodiment 1;
Fig. 6 cleans zirconium material, the polarization curve of gained weldment commissure according to traditional acid cleaning process;
Fig. 7 cleans zirconium material, the polarization curve of gained weldment commissure according to aqueous cleaning agent formula in embodiment 1.
Embodiment
In following embodiment, the trade mark of industrial zirconium material used is R60702, and the size of weldment is the sheet material that length * wide * height is 200 * 60 * 3mm, and welding wire used is ERZr2, diameter 2.4mm.Weld the trade mark and the chemical composition of mother metal used and welding wire and see Fig. 1.
The welding process adopting in experiment is argon tungsten-arc welding (being TIG weldering).Select ZX7-400STG III welding machine to carry out TIG weldering welding to zirconium R60702 sheet material.Before welding, use aqueous cleaning agent of the present invention to clean specimen surface to be welded,
And in 30min, complete welding.During welding, select group to point weldering, assurance group is 1mm left and right to gap.Zirconium plate sample is put to welding platform, by frock, weld bond two ends are compressed, be convenient to put into protective cover, during welding, the back side and positive use are dragged cover protection, adopt single face welding and double face shaping.Shielding gas selected during welding is high purity argon, and content is greater than 99.99%.The main welding condition of argon tungsten-arc welding is shown in Fig. 2.
The aqueous cleaning agent of preparing gained in embodiment, according to according to the general water-base metal detergent QB/T2117-95 of country standard, is detected its every technical performance index; And to the zirconium material weldment after aqueous cleaning agent cleans, whether up to standard according to QJ1665-95 standard test weld strength; Detect zirconium material weldment at the 75%H of 100 ° of C simultaneously
2sO
4the middle reaction erosion resistance of 100 hours, calculates erosion rate.
Embodiment 1
In the present embodiment, adopt aqueous cleaning agent formula and using method for novel zirconium material weldment welding:
(1) preparation be applicable to that industrial zirconium material welding front surface processes aqueous cleaning agent, its each component is as follows according to mass percent:
Triton X-100 1%;
Fatty alcohol-polyoxyethylene ether 7%;
4A molecular sieve 1%;
Starso 4%;
Glycol butyl 4%;
CMIT 0.15%;
Deionized water surplus.
According to aforementioned proportion, prepare each component, be heated to 45 ° of C and be stirred to dissolving completely, be zirconium material welding aqueous cleaning agent of the present invention.
(2) the zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that prepared is put into above-mentioned gained aqueous cleaning agent and soak 10min, use again 200-400# liquid honing bevel for welding surface, bruting process is all carried out in scavenging solution, until, make bevel for welding surface occur that metalluster and roughness are less than Ra6.3;
(3) weldment after above-mentioned processing is put into ultrasonic cleaner and carry out supersound process, the temperature of controlling deionized water in cleanser is 45 ° of C, and ultrasonic frequency is 60KHz, and ultrasonic time is 2min;
(4) weldment after supersound process is taken out, use deionized water spray weldment groove face, the time is 2min;
(5) the industrial zirconium material weldment after spray is processed is put into vacuum drying oven and dry, it is 120 ° of C that temperature is controlled, and the time is 30min;
(6) 2 zirconium sheet material weldments after above-mentioned cleaning are carried out to welding.
Embodiment 2
In the present embodiment, adopt aqueous cleaning agent formula and using method for novel zirconium material weldment welding:
(1) preparation be applicable to that industrial zirconium material welding front surface processes aqueous cleaning agent, its each component is as follows according to mass percent:
Triton X-100 2%;
Fatty alcohol-polyoxyethylene ether 5%;
4A molecular sieve 0.5%;
Starso 6%;
Glycol butyl 5%;
CMIT 0.1%;
Deionized water surplus.
According to aforementioned proportion, prepare each component, be heated to 40 ° of C and be stirred to dissolving completely, be zirconium material welding aqueous cleaning agent of the present invention.
(2) the zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that prepared is put into above-mentioned gained aqueous cleaning agent and soak 5min, use again 200-400# liquid honing bevel for welding surface, bruting process is all carried out in scavenging solution, until, make bevel for welding surface occur that metalluster and roughness are less than Ra6.3;
(3) weldment after above-mentioned processing is put into ultrasonic cleaner and carry out supersound process, the temperature of controlling deionized water in cleanser is 50 ° of C, and ultrasonic frequency is 70KHz, and ultrasonic time is 3min;
(4) weldment after supersound process is taken out, use deionized water spray weldment groove face, the time is 3min;
(5) the industrial zirconium material weldment after spray is processed is put into vacuum drying oven and dry, it is 100 ° of C that temperature is controlled, and the time is 40min;
(6) 2 zirconium sheet material weldments after above-mentioned cleaning are carried out to welding.
Embodiment 3
In the present embodiment, adopt aqueous cleaning agent formula and using method for novel zirconium material weldment welding:
(1) preparation be applicable to that industrial zirconium material welding front surface processes aqueous cleaning agent, its each component is as follows according to mass percent:
Triton X-100 0.5%;
Fatty alcohol-polyoxyethylene ether 8%;
4A molecular sieve 2%;
Starso 2%;
Glycol butyl 3%;
CMIT 0.2%;
Deionized water surplus.
According to aforementioned proportion, prepare each component, be heated to 50 ° of C and be stirred to dissolving completely, be zirconium material welding aqueous cleaning agent of the present invention.
(2) the zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that prepared is put into above-mentioned gained aqueous cleaning agent and soak 15min, use again 200-400# liquid honing bevel for welding surface, bruting process is all carried out in scavenging solution, until, make bevel for welding surface occur that metalluster and roughness are less than Ra6.3;
(3) weldment after above-mentioned processing is put into ultrasonic cleaner and carry out supersound process, the temperature of controlling deionized water in cleanser is 40 ° of C, and ultrasonic frequency is 50KHz, and ultrasonic time is 1min;
(4) weldment after supersound process is taken out, use deionized water spray weldment groove face, the time is 1min;
(5) the industrial zirconium material weldment after spray is processed is put into vacuum drying oven and dry, it is 140 ° of C that temperature is controlled, and the time is 20min;
(6) 2 zirconium sheet material weldments after above-mentioned cleaning are carried out to welding.
Embodiment cleaning performance is analyzed
According to the aqueous cleaning agent of cleaning agent formula gained described in embodiment 1 ~ 3, be a kind of lurid translucent liquid.After using this clean-out system to clean zirconium material to be welded, under shot-light, by magnifying glass, observe zirconium material groove, find without pollutents such as obvious greasy dirt, machining chips, dust granules.According to national general water-base metal detergent QB/T2117-95 inspecting standard, every technical performance index of this clean-out system is detected, its result is as shown in Figure 3.
Again gained zirconium material weldment is tested, obtain the weld seam requirement that weld strength reaches QJ1666-95; Again at the 75%H of 100 ° of C
2sO
40.05,0.08,0.09mm/a middle reaction 100 hours detects the erosion resistance of weldment, and the erosion rate of calculating three embodiment gained weldments of test is respectively:.The overall quality that uses aqueous cleaning agent of the present invention greatly to improve zirconium material weldment is described.
Comparative example: adopt classical acid dilution and using method
(1) preparation classical acid dilution, each component is as follows according to volume percent:
Hydrofluoric acid HF: nitric acid HNO
3: water H
2o=1:5:4
(2) the zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that prepared being put into above-mentioned Acidwash solution soaks 10 minutes.
(3) again bevel for welding polished on polishing machine, use the cleaning of stainless steel wire wheel, polishing wheel polished finish.
(4) use acetone or dehydrated alcohol to clean.
(5) 2 zirconium sheet material weldments after above-mentioned cleaning are carried out to welding.
Respectively from metallographic pattern, erosion rate, three aspects of chemical property, comparative example (classical acid dilution and using method) and embodiment 1(being adopted to novel zirconium material weldment water base metal cleaning agent and using method for welding) gained weldment compares.
(1) metallographic pattern comparison
Fig. 4 and Fig. 5 are the metallographic structure contrasts of two kinds of different purging method gained industry zirconium material weldments commissures; Wherein Fig. 4 representative is cleaned zirconium material according to traditional acid cleaning process, the metallographic structure of gained weldment commissure, and Fig. 5 representative is cleaned zirconium material, the metallographic structure of gained weldment commissure according to aqueous cleaning agent formula in embodiment 1.Contrast two kinds of different purging methods and process the metallographic structure pattern of industrial zirconium material gained weldment commissure, as shown in Figure 4, Figure 5.As can be seen from the figure, under traditional acid washing conditions, the tissue of gained weldment commissure is rendered as typical dentrite pattern, but some of dendrite generation remelting or in phenomenons such as its root are fused.Can be observed simultaneously between the branch of dentrite and have the welding flaws such as inclusion, pore, this is because the processing of welding front surface does not thoroughly cause.The tissue topography that processes gained weldment commissure according to aqueous cleaning agent of the present invention presents smooth dentrite, without any welding flaw, illustrates that weldment surface cleaning is thorough.
(2) resistance to chemical corrosion comparison
Contrasting two kinds of different purging methods processes industrial zirconium material gained weldment and at corrosive medium is: the 75%H of 100 ° of C
2sO
4the erosion rate of middle reaction after 100 hours.Wherein according to traditional acid cleaning process gained industry zirconium material weldment, the erosion rate under this etching condition is 0.51mm/a, and the erosion rate under identical etching condition is only 0.05mm/a according to the industrial zirconium material weldment after aqueous cleaning agent processing of the present invention.
(3) chemical property comparison
Fig. 6 and Fig. 7 are the polarization curve contrasts of two kinds of different purging method gained industry zirconium material weldments commissures; Wherein Fig. 6 cleans zirconium material according to traditional acid cleaning process, the polarization curve of gained weldment commissure, and Fig. 7 cleans zirconium material, the polarization curve of gained weldment commissure according to aqueous cleaning agent formula in embodiment 1.Polarization curve by two kinds of different clean process industry zirconium material gained weldments commissures relatively as shown in Figure 6, Figure 7, contrasts the erosion resistance difference of the two.From figure, can obtain the polarization curve of gained weldment weld seam traditionally, its corrosion potential E=-0.1120V, corrosion current logi=-8.0485; And the polarization curve of the industrial zirconium material weldment commissure of processing through aqueous cleaning agent of the present invention, its corrosion potential E=0.1333V, corrosion current logi=-9.1648.According to polarization curve, judge the method for material erosion resistance quality: corrosion potential is larger, and corrosion current is less, and erosion resistance is better, can find out the good corrosion resistance of the industrial zirconium material weldment after aqueous cleaning agent of the present invention is processed.
More than comprehensive, can find out, by aqueous cleaning agent of the present invention and using method thereof, process industrial zirconium material weldment, with classical acid dilution and using method comparison thereof, weldment surface and oil contaminant is processed thoroughly, can increase substantially the erosion resistance of industrial zirconium material weldment simultaneously.
Claims (3)
1. a zirconium material welding aqueous cleaning agent, is characterized in that into being grouped into according to mass percent and is:
Triton X-100 0.5 ~ 2%;
Fatty alcohol-polyoxyethylene ether 5 ~ 8%;
4A molecular sieve 0.5 ~ 2%;
Starso 2 ~ 6%;
Glycol butyl 3 ~ 5%;
CMIT 0.1 ~ 0.2%;
Deionized water surplus.
2. zirconium material welding aqueous cleaning agent according to claim 1, is characterized in that into being grouped into according to mass percent and is:
Triton X-100 1%;
Fatty alcohol-polyoxyethylene ether 7%;
4A molecular sieve 1%;
Starso 4%;
Glycol butyl 4%;
CMIT 0.15%;
Deionized water surplus.
3. described in claim 1, zirconium material welds the using method with aqueous cleaning agent, it is characterized in that comprising the following steps:
Step 1, industrial zirconium material weldment to be welded put into above-mentioned aqueous cleaning agent soak 5 ~ 15min,
Step 2, with 200 ~ 400# liquid honing bevel for welding, bruting process is all carried out in above-mentioned aqueous cleaning agent, makes bevel for welding occur that metalluster and roughness are less than Ra6.3;
Step 3, the bevel for welding after above-mentioned processing is put into the ultrasonic cleaner that deionized water is housed carry out supersound process, the temperature of controlling deionized water is 40 ~ 50 ° of C, and ultrasonic frequency is 50 ~ 70KHz, and ultrasonic treatment time is 1 ~ 3min;
Step 4, weldment after ultrasonic cleaning is taken out, use deionized water spray bevel for welding surface, the time is 1 ~ 3min;
Step 5, the zirconium material weldment after spray is processed is put into vacuum drying oven dry, it is 100 ~ 140 ° of C that temperature is controlled, and the time is 20 ~ 40min, and processing finishes.
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| CN103831506B (en) * | 2014-03-11 | 2016-05-25 | 中国化学工程第六建设有限公司 | A kind of Nitinol welding method |
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| CN109926721B (en) * | 2019-04-17 | 2020-09-15 | 湖北三环锻造有限公司 | Laser arc fuse welding process capable of avoiding slag inclusion |
| CN111451602B (en) * | 2020-05-09 | 2021-10-15 | 浙江智信电器科技有限公司 | Digging, replacing, welding and repairing equipment for iron castings |
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