CN102808192A - 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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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 zirconium material welding with aqueous cleaning agent and method of use thereof; Adopt aqueous cleaning agent and method of use thereof among the present invention that industrial zirconium material weldment bevel for welding is welded the front surface processing; Can ensure zirconium material weldment weldquality; Improve the corrosion resistance nature of zirconium material weldment weld seam, belong to welding technology field.
Background technology
Industry zirconium material is meant that hafnium content is lower than 5% zirconium alloy; Have characteristics such as density is low, ratio is high, corrosion-resistant by force, processing characteristics excellence; Thereby be widely used in numerous areas such as nuclear energy, chemical industry, Chu Qing, optics, medical and health, the preferred material of chemical plants such as Chang Zuowei pressurized vessel.In industry practice; Because normal what use is the weldment of zirconium material, and at high temperature active higher of zirconium, during welding; If it is unclean that bevel for welding is handled; Be prone to the MOX remaining, greasy dirt etc. and react, form intermetallic compound, be mingled with, welding flaw such as pore, have a strong impact on the welding quality of zirconium material weldment with the weldment groove face; Thereby cause zirconium material pressurized vessel or pipeline equipment that the burn into fracture phenomena takes place in the commissure, cause serious security incident and heavy economic losses.
The traditional welding front surface treatment process of zirconium material weldment groove is pickling.Acidwash solution commonly used is by industrial hydrofluoric acid HF, industrial nitric acid HNO
3With water H
2O is that the proportional arrangement of 1:5:4 forms according to volume ratio.Again through polishing machine polishing, the cleaning of stainless steel wire wheel, buff polished finish, use acetone or absolute ethyl alcohol to clean at last after the pickling of weldment groove, accomplish the surface treatment work before welding.Owing to use a large amount of pernicious materials of strong acid class in traditional acid washing method; Not only environment is caused very big pollution; And easy residual greasy dirt in weldment surface and metallic compound, in the later welded process, form welding flaw, have a strong impact on weldquality; Reduce the corrosion resistance nature of weld seam, restricted the application and the development of industrial zirconium material.
Summary of the invention
The object of the invention is the problem to traditional pickled surface treatment process existence before the industrial zirconium material weldment welding, has proposed a kind of zirconium material weldment welding with water base metal cleaning agent and method of use, is used for the surface treatment before zirconium material weldment welds.Use the present invention, both can reduce environmental pollution, can significantly improve the cleaning performance of bevel for welding again, prevent to form welding flaw, improve the erosion resistance of weldment weld seam in the commissure.
Aqueous cleaning agent is used in the zirconium material weldment welding that the present invention proposes, and comprises following component according to mass percent:
Polyoxyethylene octyl phenyl ether 0.5 ~ 2%;
AEO 5 ~ 8%;
4A molecular sieve 0.5 ~ 2%;
Starso 2 ~ 6%;
Glycol butyl 3 ~ 5%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.1 ~ 0.2%;
The deionized water surplus.
Prepare each component according to aforementioned proportion, be heated to 40 ~ 50 ° of C and be stirred to dissolving fully, be zirconium material welding of the present invention and use aqueous cleaning agent.
According to the prescription of above-mentioned aqueous cleaning agent, preparation be fit to that industrial zirconium material welding front surface handles aqueous cleaning agent, use according to following method:
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 metalluster and roughness occur less than Ra6.3;
Step 3, will pass through bevel for welding after the above-mentioned processing and put into the ultrasonic cleaner that deionized water is housed and carry out supersound process, the temperature of control 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, will put into vacuum drying oven through the zirconium material weldment after spray is handled and dry, temperature is controlled to be 100 ~ 140 ° of C, and the time is 20 ~ 40min, and processing finishes.
Processing can be welded zirconium material weldment after finishing.
A kind of zirconium material weldment welding of the present invention is with aqueous cleaning agent and method of use; It is unclean because of the bevel for welding surface cleaning to have solved industrial zirconium material weldment; Cause being prone to produce this technical barrier of welding flaw, be applicable to that the groove welding front surface of weldprocedures such as argon tungsten-arc welding, plasma arc welding, LBW is handled in the commissure.Compare with traditional acid cleaning process, easy to operate, little to human body and surrounding environment influence.
Characteristics of the present invention are to utilize surfactants synergism; Wetting, osmosis takes place in the greasy dirt through with industrial zirconium material surface; Make the sticking power of greasy dirt weaken or offset on industrial zirconium material surface; Again through the method for ultra-sonic oscillation and spary, quicken that greasy dirt breaks away from zirconium material surface and in the entering clean-out system by emulsification, dispersion, thereby reach the cleaning purpose.
Polyoxyethylene octyl phenyl ether, AEO that the present invention adopts are the chemical ingredients that the clean-out system industry is known.Wherein polyoxyethylene octyl phenyl ether is a kind of non-ionics, have excellent emulsification, wetting, performance spreads, deoils.The biodegradability of AEO is good, can be in the environment use down of low temperature, low bubble, hard water, and it is remarkable to be suitable as emulsifying agent, dispersion agent, clean effect; 4A molecular sieve, glycol butyl, Starso be as washing assistant commonly used in the water base metal cleaning agent, plays chelating, inhibition, froth breaking, solubilising, stablizes effect such as clean-out system.Wherein the 4A molecular sieve has a lot of holes, thereby very big adsorption surface is arranged, and is extremely strong to the adsorptive power of nonionogenic tenside, and in solution, being alkalescence has certain shock absorption.This material is to human body, fish, algae safety non-toxic simultaneously, and the clean-out system of having avoided P contained compound is because improper this problem of body eutrophication that causes of wastewater treatment; This water base metal cleaning agent combines with 5-chloro-2 methyl-4-isothiazoline-3-ketone sanitas in addition; Thereby make acidproof, alkaline-resisting, anti-hard water and the performance of microbiological corrosion of industrial zirconium material in actual production significantly improve, thereby reach the purpose that improves industrial zirconium material erosion resistance.
In sum, the present invention compares with existing conventional art, and it is following to have advantage: (1), strong detergency, anti-hard water does not receive temperature limitation during use.(2), have washing assistants such as highly basic, phosphorus, Sodium Nitrite in the clean-out system, not safe and harmless, environmentally friendly.(3), metal is not corroded and the 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 suitable industrial zirconium material welding.
Description of drawings
Fig. 1 mother metal and the welding wire trade mark, specification and chemical ingredients;
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 prescription among the 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 prescription among the embodiment 1.
Embodiment
The trade mark of used industrial zirconium material is R60702 among the following embodiment, and the size of weldment is that length * wide * height is the sheet material of 200 * 60 * 3mm, and used welding wire is ERZr2, diameter 2.4mm.Weld the trade mark and the chemical ingredients of used mother metal and welding wire and see Fig. 1.
The welding process that adopts in the experiment is argon tungsten-arc welding (being the TIG weldering).Select for use ZX7-400STG III welding machine that zirconium R60702 sheet material is carried out TIG weldering welding.Use aqueous cleaning agent of the present invention to clean specimen surface to be welded before the welding,
And in 30min, accomplish and weld.Select for use group to spot welding during welding, the assurance group is about 1mm to the gap.Zirconium plate sample is put to the welding platform, with frock the weld bond two ends are compressed, be convenient to put into protection and drag cover, the back side and positive the use are dragged the cover protection during welding, adopt single face welding and double face shaping.The shielding gas of being selected for use during welding is a high purity argon, and content is greater than 99.99%.The main welding condition of argon tungsten-arc welding is seen Fig. 2.
The aqueous cleaning agent of preparation gained among the embodiment according to according to national general water-base metal detergent QB/T2117-95 standard, is detected its each item technical performance index; And to the zirconium material weldment after cleaning through aqueous cleaning agent, whether up to standard according to QJ1665-95 standard test weld strength; Detect the 75%H of zirconium material weldment simultaneously at 100 ° of C
2SO
4100 hours erosion resistance of middle reaction is calculated erosion rate.
Embodiment 1
Adopt novel zirconium material weldment to weld in the present embodiment with aqueous cleaning agent prescription and method of use:
(1) preparation be fit to that industrial zirconium material welding front surface handles aqueous cleaning agent, its each component is following according to mass percent:
Polyoxyethylene octyl phenyl ether 1%;
AEO 7%;
4A molecular sieve 1%;
Starso 4%;
Glycol butyl 4%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.15%;
The deionized water surplus.
Prepare each component according to aforementioned proportion, be heated to 45 ° of C and be stirred to dissolving fully, be zirconium material welding of the present invention and use aqueous cleaning agent.
The zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that (2) will prepare is put into above-mentioned gained aqueous cleaning agent and is soaked 10min; Use 200-400# liquid honing bevel for welding surface again; Bruting process is all carried out in scavenging solution; Until, make the bevel for welding surface metalluster and roughness occur less than Ra6.3;
(3) will pass through weldment after the above-mentioned processing and put into ultrasonic cleaner and carry out supersound process, the temperature of deionized water is 45 ° of C in the control cleanser, 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) will put into vacuum drying oven through the industrial zirconium material weldment after spray is handled and dry, temperature is controlled to be 120 ° of C, and the time is 30min;
2 zirconium sheet material weldments that (6) will pass through after the above-mentioned cleaning weld.
Embodiment 2
Adopt novel zirconium material weldment to weld in the present embodiment with aqueous cleaning agent prescription and method of use:
(1) preparation be fit to that industrial zirconium material welding front surface handles aqueous cleaning agent, its each component is following according to mass percent:
Polyoxyethylene octyl phenyl ether 2%;
AEO 5%;
4A molecular sieve 0.5%;
Starso 6%;
Glycol butyl 5%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.1%;
The deionized water surplus.
Prepare each component according to aforementioned proportion, be heated to 40 ° of C and be stirred to dissolving fully, be zirconium material welding of the present invention and use aqueous cleaning agent.
The zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that (2) will prepare is put into above-mentioned gained aqueous cleaning agent and is soaked 5min; Use 200-400# liquid honing bevel for welding surface again; Bruting process is all carried out in scavenging solution; Until, make the bevel for welding surface metalluster and roughness occur less than Ra6.3;
(3) will pass through weldment after the above-mentioned processing and put into ultrasonic cleaner and carry out supersound process, the temperature of deionized water is 50 ° of C in the control cleanser, 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) will put into vacuum drying oven through the industrial zirconium material weldment after spray is handled and dry, temperature is controlled to be 100 ° of C, and the time is 40min;
2 zirconium sheet material weldments that (6) will pass through after the above-mentioned cleaning weld.
Embodiment 3
Adopt novel zirconium material weldment to weld in the present embodiment with aqueous cleaning agent prescription and method of use:
(1) preparation be fit to that industrial zirconium material welding front surface handles aqueous cleaning agent, its each component is following according to mass percent:
Polyoxyethylene octyl phenyl ether 0.5%;
4A molecular sieve 2%;
Starso 2%;
Glycol butyl 3%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.2%;
The deionized water surplus.
Prepare each component according to aforementioned proportion, be heated to 50 ° of C and be stirred to dissolving fully, be zirconium material welding of the present invention and use aqueous cleaning agent.
The zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that (2) will prepare is put into above-mentioned gained aqueous cleaning agent and is soaked 15min; Use 200-400# liquid honing bevel for welding surface again; Bruting process is all carried out in scavenging solution; Until, make the bevel for welding surface metalluster and roughness occur less than Ra6.3;
(3) will pass through weldment after the above-mentioned processing and put into ultrasonic cleaner and carry out supersound process, the temperature of deionized water is 40 ° of C in the control cleanser, 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) will put into vacuum drying oven through the industrial zirconium material weldment after spray is handled and dry, temperature is controlled to be 140 ° of C, and the time is 20min;
2 zirconium sheet material weldments that (6) will pass through after the above-mentioned cleaning weld.
The embodiment cleaning performance is analyzed
According to the aqueous cleaning agent of cleaning agent formula gained described in the embodiment 1 ~ 3 is a kind of lurid translucent liquid.After using this clean-out system that zirconium material to be welded is cleaned, under shot-light, observe zirconium material groove, find pollutents such as no obvious greasy dirt, machining chips, dust granules through reading lens.According to national general water-base metal detergent QB/T2117-95 inspecting standard, each item 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, get the weld seam requirement that weld strength reaches QJ1666-95; Again at the 75%H of 100 ° of C
2SO
4In reaction detected the erosion resistance of weldment in 100 hours, 0.05,0.08,0.09mm/a 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 to improve zirconium material weldment greatly is described.
Comparative Examples: adopt classical acid dilution and method of use
(1) preparation classical acid dilution, each component is following according to volume percent:
Hydrofluoric acid HF: nitric acid HNO
3: water H
2O=1:5:4
The zirconium plate (to-be-welded pieces) of 2 200 * 60 * 3mm that (2) will prepare is put into above-mentioned Acidwash solution and was soaked 10 minutes.
(3) again with bevel for welding on polishing machine, polish, with stainless steel wire wheel cleaning, buff polished finish.
(4) use acetone or absolute ethyl alcohol to clean.
2 zirconium sheet material weldments that (5) will pass through after the above-mentioned cleaning weld.
From metallographic pattern, erosion rate, three aspects of chemical property, Comparative Examples (classical acid dilution and method of use) and embodiment 1 (adopting novel zirconium material weldment welding with water base metal cleaning agent and method of use) gained weldment are compared respectively.
(1) the metallographic pattern relatively
Fig. 4 is the metallographic structure contrast of two kinds of different purging method gained industry zirconium material weldments commissures with Fig. 5; Wherein Fig. 4 representative is cleaned the 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 prescription among the embodiment 1.Contrast two kinds of different purging methods and handle the metallographic structure pattern of industrial zirconium material gained weldment commissure, like Fig. 4, shown in Figure 5.As can be seen from the figure, the tissue of gained weldment commissure is rendered as typical dentrite pattern under traditional pickling condition, 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 welding flaws such as inclusion, pore, this is because the welding front surface is handled does not thoroughly cause.The tissue topography that handles gained weldment commissure according to aqueous cleaning agent of the present invention demonstrates slick dentrite, does not have any welding flaw, explains that the weldment surface cleaning is thorough.
(2) resistance to chemical corrosion relatively
Contrasting two kinds of different purging methods handles 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.Be 0.51mm/a wherein, and be merely 0.05mm/a according to the erosion rate of industrial zirconium material weldment under identical etching condition after the aqueous cleaning agent processing of the present invention according to the erosion rate of traditional acid cleaning process gained industry zirconium material weldment under this etching condition.
(3) chemical property relatively
Fig. 6 is the polarization curve contrast of two kinds of different purging method gained industry zirconium material weldments commissures with Fig. 7; Wherein Fig. 6 cleans the zirconium material according to traditional acid cleaning process, and the polarization curve of gained weldment commissure, Fig. 7 are to clean zirconium material, the polarization curve of gained weldment commissure according to aqueous cleaning agent prescription among the embodiment 1.Through comparing polarization curve such as Fig. 6, shown in Figure 7 of two kinds of different clean process industry zirconium material gained weldments commissures, contrast 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 is from corrosion current logi=-8.0485; And the polarization curve of the industrial zirconium material weldment commissure that process aqueous cleaning agent of the present invention is handled, its corrosion potential E=0.1333V is from corrosion current logi=-9.1648.Judge the method for material erosion resistance quality according to polarization curve: corrosion potential is big more, and is more little from corrosion current, and erosion resistance is good more, can find out the good corrosion resistance of the industrial zirconium material weldment after aqueous cleaning agent of the present invention is handled.
Can find out more than comprehensive; Use aqueous cleaning agent of the present invention and method of use thereof to handle industrial zirconium material weldment; Compare with classical acid dilution and method of use thereof, the weldment surface and oil contaminant is handled thoroughly, can increase substantially the erosion resistance of industrial zirconium material weldment simultaneously.
Claims (3)
1. aqueous cleaning agent is used in a zirconium material welding, it is characterized in that becoming to be grouped into according to mass percent being:
Polyoxyethylene octyl phenyl ether 0.5 ~ 2%;
AEO 5 ~ 8%;
4A molecular sieve 0.5 ~ 2%;
Starso 2 ~ 6%;
Glycol butyl 3 ~ 5%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.1 ~ 0.2%;
The deionized water surplus.
2. aqueous cleaning agent is used in zirconium material welding according to claim 1, it is characterized in that becoming to be grouped into according to mass percent being:
Polyoxyethylene octyl phenyl ether 1%;
AEO 7%;
4A molecular sieve 1%;
Starso 4%;
Glycol butyl 4%;
5-chloro-2 methyl-4-isothiazoline-3-ketone 0.15%;
The deionized water surplus.
3. the said zirconium material welding of claim 1 is characterized in that may further comprise the steps with the method for use of aqueous cleaning agent:
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 metalluster and roughness occur less than Ra6.3;
Step 3, will pass through bevel for welding after the above-mentioned processing and put into the ultrasonic cleaner that deionized water is housed and carry out supersound process, the temperature of control 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, will put into vacuum drying oven through the zirconium material weldment after spray is handled and dry, temperature is controlled to be 100 ~ 140 ° of C, and the time is 20 ~ 40min, and processing finishes.
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| CN103831506A (en) * | 2014-03-11 | 2014-06-04 | 中国化学工程第六建设有限公司 | Nitinol welding method |
| CN106118083A (en) * | 2016-06-23 | 2016-11-16 | 巢湖鹏远金属焊管有限公司 | A kind of welded tube repair welding pretreatment welding bead slag grinding paster |
| CN106181148A (en) * | 2016-08-17 | 2016-12-07 | 浙江特富锅炉有限公司 | A kind of welding procedure of corrosion resistant boiler tail flue gas pipeline alloy |
| CN109926721A (en) * | 2019-04-17 | 2019-06-25 | 湖北三环锻造有限公司 | A kind of laser-arc fuse welding procedure avoiding slag inclusion |
| CN111451602A (en) * | 2020-05-09 | 2020-07-28 | 邱振强 | Digging, replacing, welding and repairing equipment for iron castings |
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| CN106181148A (en) * | 2016-08-17 | 2016-12-07 | 浙江特富锅炉有限公司 | A kind of welding procedure of corrosion resistant boiler tail flue gas pipeline alloy |
| CN109926721A (en) * | 2019-04-17 | 2019-06-25 | 湖北三环锻造有限公司 | A kind of laser-arc fuse welding procedure avoiding slag inclusion |
| 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 |
| CN111451602A (en) * | 2020-05-09 | 2020-07-28 | 邱振强 | Digging, replacing, welding and repairing equipment for iron castings |
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