CN101622099A - Surface treatment method of welding part of metallic member - Google Patents
Surface treatment method of welding part of metallic member Download PDFInfo
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- CN101622099A CN101622099A CN200880006996A CN200880006996A CN101622099A CN 101622099 A CN101622099 A CN 101622099A CN 200880006996 A CN200880006996 A CN 200880006996A CN 200880006996 A CN200880006996 A CN 200880006996A CN 101622099 A CN101622099 A CN 101622099A
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- sample
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- surface treatment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Arc Welding In General (AREA)
Abstract
This invention provides a method for treating the surface of a weld in a metal member which can efficiently and safely remove a weld burning part causative of the generation of an unnecessary gas under a vacuum atmosphere. This method is characterized in that a solution containing grinding particles is sprayed onto the weld in a metal member at a pressure of 1 MPa to 15 MPa, and the weld is subjected to electrolytic polishing, electrolytic pickling, acid cleaning using phosphoric acid, or chemical polishing.
Description
Technical field
The surface treatment method of the weld part of the metal system of the present invention relates to member relates to the surface treatment method of the weld part of the metal system member that places under the vacuum atmosphere in detail.
Background technology
If engage by welding the metal system member that comes the different shape that is used for vacuum plant, produce the calcination portion (baked け portion) of welding in welding bead portion.This welding calcination portion produces unwanted gas, dust sometimes under vacuum atmosphere.In order not produce above-mentioned unwanted gas etc., remove welding calcination portion and get final product.
With respect to this, carry out the removal method that the removal method of the wet type of electrolytic polishing or chemical grinding etc., the removal method of machinery of utilizing file or shot-peening etc. or spray hydrofluoric acid or utilization contain the paste of hydrofluoric acid at present.
But the problem that exists in the removal method of wet type is that even also be ground beyond the welding calcination portion, surperficial roughening produces unwanted gas, can not remove complicated shape with file, needs the removal equipment of dust in shot-peening, therefore can not carry out simply.In addition, all there is time-consuming problem in said method.
On the other hand, as stainless process for treating surface, relate to the surface scale of stainless steel belt and the removal that hinder on the surface, for example, in patent documentation 1, have and with the Ginding process of the grinding of the grinding of above-mentioned wet type and machinery, still, owing to use hydrofluoric acid or sulfuric acid to clean, therefore, exist under the vacuum atmosphere from weld part surface generation HF, SO and SO
2And so on unwanted gas, can not get the problem of desirable application of vacuum performance when being used in vacuum plant.And, there are the removal of the hydrofluoric acid after using and the problem of liquid waste processing difficulty.
Patent documentation 1: the spy opens the 7-227763 communique
Summary of the invention
So, the purpose of this invention is to provide a kind of surface treatment method of weld part of metal system member, this method can become the processing that unwanted gas produces the welding calcination portion of reason efficiently and safely under vacuum atmosphere.
Be used to solve the means of problem
For solving above-mentioned problem, present inventors etc. further investigate, the result, if come to remove welding calcination portion rapidly with desirable thickness based on following knowledge opinion, the solution that promptly contains the grinding particle with high pressure ejection, and then carry out electrolytic polishing, cathodic pickling, utilize the acid cleaning or the chemical grinding of phosphoric acid, remove the fine dust in surface and become the solution of the acidity of the reason that produces undesirable gas, thereafter, water cleans, can carry out the processing on surface rapidly safely, find following solution.
Promptly, the surface treatment method of the weld part of metal system member of the present invention, according to claim 1, it is characterized in that, contain the solution of grinding particle to the weld part of metal system member with the pressure ejection of 1MPa～15MPa, carry out electrolytic polishing, cathodic pickling, utilize the acid cleaning or the chemical grinding of phosphoric acid.
In addition, the present invention described in the claim 2 is characterized in that, in the surface treatment method of the weld part of the described metal system member of claim 1, above-mentioned solution contains antirust agent.
In addition, the present invention described in the claim 3 is characterized in that, in the surface treatment method of the weld part of claim 1 or 2 described metal system members, above-mentioned metal system member is formed by stainless steel.
The effect of invention
According to the present invention, can weld the removal of the machinery of calcination portion at short notice.In addition, owing to use grinding particle removal welding calcination portion, therefore with the situation specific energy operation safely of using hydrofluoric acid.
In addition, owing in the bead of dry type, do not need necessary dust to remove equipment, therefore can carry out field operation.And, welding acid cleaning or the chemical grinding that carries out electrolytic polishing, cathodic pickling after calcination portion removes, utilizes phosphoric acid, remove the grinding particle, cleaning can prevent the generation of unwanted gas under vacuum atmosphere thus.
Description of drawings
Fig. 1 is the synoptic diagram of sample 1, (a) is side view, (b) is plane;
Fig. 2 is the synoptic diagram of sample 2;
Fig. 3 is the surperficial SEM picture of embodiment 1;
Fig. 4 is the surperficial SEM picture of comparative example 2.
The explanation of symbol:
1, plate
2, welding bead
3, container cylindraceous
4,070 vacuum flange dish (コ Application Off ラ Star ト Off ラ Application ジ)
5,306 vacuum flange dishes
The specific embodiment
In the present invention as the metal system member of handling object, be to get final product by the member that arc welding etc. has a weld part.If enumerate concrete example, can enumerate metal container made that can under vacuum atmosphere, use etc.As its material, for example can enumerate: stainless steel, aluminium alloy, titanium alloy, iron isoreactivity metal.What illustrated is that the vacuum atmosphere in this specification is meant in the pressure limit also lower than atmospheric pressure.
At the weld part of above-mentioned metal system member, at first, contain the solution of grinding particle with the ejection of the pressure of 1～15MPa, grinding is carried out on the surface of welding calcination portion.For stock removal, just have no particular limits as long as can remove welding calcination portion, still, if the above thickness of the then preferred grinding 50 μ m of common arc welding.
As the grinding particle that uses in handling at this, so long as can remove the surface of weld part, just there is no particular limitation for its material and shape etc., for example can use by materials such as silica sand, aluminium oxide, SiC constitute, particle diameter is the grinding particle about several 100 μ m.In addition, the solution as adding the grinding particle for example can use pure water or running water etc.This solution preferably contains the antirust agent of BTA etc.
After above-mentioned processing, the surface of metal system member is carried out electrolytic polishing, utilized the acid cleaning of phosphoric acid or the processing of chemical grinding.Handle by this, can carry out the removal of grinding particle etc., under vacuum atmosphere, can prevent the generation of dust etc.
In above-mentioned processing, utilize the acid cleaning of phosphoric acid for example can followingly to carry out.For the electrolytic polishing that utilizes phosphoric acid, in room temperature～50 ℃, object being treateds such as stainless steel are being applied under the state of positive voltage, utilize the phosphoric acid of concentration 10%～80% to clean.In addition, for the acid that utilizes phosphoric acid to carry out is cleaned, in room temperature～50 ℃, utilize the phosphoric acid of concentration 10%～80% to clean to object being treateds such as aluminium alloy, iron.What illustrated is, for concentration of phosphoric acid, if less than 10%, rate of dissolution is slow, if surpass 80%, cost increases, and considers to be set at 10～80% from this reason.In addition, for treatment temperature, if be lower than room temperature, rate of dissolution is slack-off, if surpass 50 ℃, the cost that is used to heat increases, and therefore, is set at room temperature～50 ℃.
As the electrolyte that is used in above-mentioned electrolytic polishing and chemical grinding, so long as contain getting final product of any at least in inorganic acid, organic acid, inorganic acid salt and the acylate, particularly, can enumerate: phosphoric acid, hydrofluoric acid, sulfuric acid, ammonium citrate, ammonium chloride, ammonium dihydrogen phosphate (ADP), ammonium sulfate, sodium nitrate, citric acid etc.In addition, the electrolytic current density in the electrolytic polishing is because of the material difference that constitutes metal system member is different, for example if stainless steel then is 0.1～0.5A/cm
2
What illustrated is that in the present invention, acid is cleaned and utilized phosphoric acid to carry out.This be because, if, under vacuum atmosphere, discharge HF, SO, SO because of above-mentioned grinding particle residual fluorine nitric acid, sulfuric acid in the jog on weld part surface
2Deng gas, therefore not preferred.
In addition, preferably utilize clean metal system members such as pure water again, clean electrolyte attached etc. by above-mentioned processing, even under vacuum atmosphere, also do not produce unwanted gas.
Embodiment
Below, the embodiment and the accompanying drawing of the present application described together, still, describe in advance for sample 1 that in each example, uses and sample 2.
In addition, sample 2 as shown in Figure 2, for the both sides of container cylindraceous 3 at internal diameter 250mm, height 380mm are provided with 070 vacuum flange dish 4, is provided with the vacuum tank of the structure of 306 vacuum flange dishes in the above.The bottom of the inner peripheral surface of this container spreads all over bottom surface and full Zhou Jinhang arc welding.
What illustrated is, is recorded in each following example for the material of sample 1 and sample 2.
(embodiment 1)
In running water, sneak into No. 6 silica sands, it is sprayed to each sample with 3MPa,, utilize the nitration mixture of 70% phosphoric acid and 30% sulfuric acid that specimen surface is carried out the electrolytic polishing processing, make specimen surface dissolve about 15 μ m the average grinding 30 μ m in its surface as the grinding particle., sample with RO water jet cleaning, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, 35% nitric acid dipping, the order of pure water dipping cleaned spray nitrogen and carry out drying thereafter.
(embodiment 2)
In running water, sneak into as the #150 aluminium oxide of grinding particle with as the BTA of antirust agent, it is sprayed to each sample with 3MPa, with the average grinding 50 μ m in its surface, utilization is heated to 80 ℃ 80% phosphoric acid and the nitration mixture of 20% sulfuric acid carries out the chemical grinding processing to specimen surface, makes specimen surface dissolve about 10 μ m., sample with RO water jet cleaning, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, 35% nitric acid dipping, the order of pure water dipping cleaned spray nitrogen and carry out drying thereafter.
(embodiment 3)
In running water, sneak into as the #150SiC of grinding particle with as the sodium phosphate of antirust agent, it is sprayed to each sample with 3MPa,, utilize 20% phosphoric acid of normal temperature that specimen surface is carried out acid and clean, make specimen surface dissolve about 4 μ m its surfacing 50 μ m., sample with RO water jet cleaning, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, 35% nitric acid dipping, the order type of pure water dipping cleaned spray nitrogen and carry out drying thereafter.
(embodiment 4)
In running water, sneak into No. 6 silica sands, it is sprayed to each sample with 3MPa,, utilize the nitration mixture of 70% phosphoric acid and 30% sulfuric acid that specimen surface is carried out the electrolytic polishing processing, make specimen surface dissolve about 4 μ m the average grinding 30 μ m in its surface as the grinding particle., sample with RO water jet cleaning, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, 35% nitric acid dipping, the order of pure water dipping cleaned spray nitrogen and carry out drying thereafter.
(embodiment 5)
In running water, sneak into No. 6 silica sands, it is sprayed to each sample with 3MPa,, utilize 20% phosphoric acid that specimen surface is carried out the part electrolytic polishing and handle, make specimen surface dissolve about 5 μ m the average grinding 30 μ m in its surface as the grinding particle.Thereafter, with sample with the jet cleaning of RO water, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, utilize the stain of chelating agent to remove, the order of pure water dipping cleans, spray nitrogen and carry out drying.
(comparative example 1)
The paste that utilization contains hydrofluoric acid removes the welding calcination portion of each sample, cleans paste with running water., with pure water dipping, 50 ℃ the order of warm pure water dipping clean spray nitrogen and carry out drying thereafter.
(comparative example 2)
In running water, sneak into No. 6 silica sands, it is sprayed to each sample with 3MPa, with the average grinding 30 μ m in its surface as the grinding particle., sample with RO water jet cleaning, RO water retting, pure water dipping, 50 ℃ warm pure water dipping, 35% nitric acid dipping, the order of pure water dipping cleaned spray nitrogen and carry out drying thereafter.
(comparative example 3)
Cut the about 50 μ m of each specimen surface with rasion, clean the cutting slag with running water., with pure water normal temperature under dipping, 50 ℃ the order of warm pure water dipping clean spray nitrogen and carry out drying thereafter.
With The above results in table 1.What illustrated is, the evaluation that the welding calcination in the table 1 is removed is undertaken by visual, and that can fully remove is designated as zero, and major part is all removed is designated as △, can not fully remove be designated as *.
[table 1]
Can see that by table 1 embodiment 1～5, the comparative example 2 and 3 that spray the solution that has added the grinding particle with high pressure can be removed welding calcination portion at short notice reliably.Relative with it, comparative example 1 removal welding calcination portion needs the time more than 10 times.In addition,, therefore must collect the waste water when washing medicament, need the expense and the time of wastewater treatment owing to using hydrofluoric acid.
Below, Fig. 3 represents the surperficial SEM picture of the sample 1 of embodiment 1, Fig. 4 represents the surperficial SEM picture of the sample 1 of comparative example 2.
Know that by Fig. 3 embodiment 1 can fully remove the grinding particle on surface.Relative with it, know that by Fig. 4 the grinding particle of stain is present in the whole surface of sample, can not fully remove.
Below, the sample 2 that uses each embodiment and each comparative example to handle carries out from atmospheric exhaust, and following table 2 expression exhaust is after 1 hour (10
-3～10
-5Pa) the gas mass rate of emission of per unit area.
[table 2]
Know that by table 2 sample 2 handled by present embodiment is compared with the sample of having handled by comparative example 2,3, and is little from its surperficial gas mass rate of emission.In addition, the gas mass rate of emission of comparative example 1 embodiment 2,3 different with material compares, and the gas mass rate of emission is little, but HF accounts for about 1/3 of water in residual gas.Because HF is corrosive gas, therefore know, float in the vacuum gas not preferred, improper as the surface treatment of vacuum tank.
Claims (3)
1, a kind of surface treatment method of weld part of metal system member, it is characterized in that, contain the solution of grinding particle to the weld part of metal system member with the pressure ejection of 1MPa～15MPa, carry out electrolytic polishing, cathodic pickling, utilize the acid cleaning or the chemical grinding of phosphoric acid.
2, the surface treatment method of the weld part of metal system member as claimed in claim 1 is characterized in that, above-mentioned solution contains antirust agent.
3, the surface treatment method of the weld part of metal system member as claimed in claim 1 or 2 is characterized in that, above-mentioned metal system member is formed by stainless steel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007075710A JP5072398B2 (en) | 2007-03-23 | 2007-03-23 | Surface treatment method for welded part of metal member |
| JP075710/2007 | 2007-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101622099A true CN101622099A (en) | 2010-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880006996A Pending CN101622099A (en) | 2007-03-23 | 2008-03-21 | Surface treatment method of welding part of metallic member |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5072398B2 (en) |
| KR (1) | KR101489977B1 (en) |
| CN (1) | CN101622099A (en) |
| TW (1) | TWI426974B (en) |
| WO (1) | WO2008123147A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625278A (en) * | 2013-11-12 | 2015-05-20 | 联合汽车电子有限公司 | Method for manufacturing products by cast components through copper brazing |
| CN111774939A (en) * | 2019-04-04 | 2020-10-16 | 昆山德尚金属制品有限公司 | Surface treatment method for stainless steel welded pipe |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101014769B1 (en) * | 2010-09-20 | 2011-02-14 | (주) 미래이피 | Method for treating surface of vacuum chamber |
| FR3093016B1 (en) * | 2019-02-27 | 2022-07-01 | Centre Techn Ind Mecanique | Process and installation for polishing metal parts |
| JP7038751B2 (en) * | 2020-04-20 | 2022-03-18 | 株式会社Ihi | How to handle stainless steel parts |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61274877A (en) * | 1985-05-28 | 1986-12-05 | Daifuku Co Ltd | Adsorptive self-moving type grinding device |
| JP2827026B2 (en) * | 1990-01-29 | 1998-11-18 | 株式会社 ケミカル山本 | Treatment method of localized oxide scale accompanying welding of stainless steel thick plate |
| JPH1133915A (en) * | 1997-07-22 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Blasting device |
| JPH11207620A (en) * | 1998-01-29 | 1999-08-03 | Moriai Seiki Kk | Surface finishing method for article |
| JP2000033417A (en) * | 1998-07-21 | 2000-02-02 | Daido Steel Co Ltd | Method for descaling ferrous wire rod and device therefor |
| JP4433602B2 (en) * | 2000-10-31 | 2010-03-17 | 旭硝子株式会社 | Blasting method |
| TWI342582B (en) * | 2003-07-17 | 2011-05-21 | Applied Materials Inc | Method of surface texturizing |
| JP4418985B2 (en) * | 2004-03-24 | 2010-02-24 | アーク岡山株式会社 | Manufacturing method of product made of magnesium or magnesium alloy |
| JP2006326762A (en) * | 2005-05-26 | 2006-12-07 | Fuji Xerox Co Ltd | Surface treatment method of cylindrical substrate and its device |
-
2007
- 2007-03-23 JP JP2007075710A patent/JP5072398B2/en active Active
-
2008
- 2008-03-21 CN CN200880006996A patent/CN101622099A/en active Pending
- 2008-03-21 KR KR20097017386A patent/KR101489977B1/en active IP Right Grant
- 2008-03-21 WO PCT/JP2008/055297 patent/WO2008123147A1/en active Application Filing
- 2008-03-24 TW TW97110367A patent/TWI426974B/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625278A (en) * | 2013-11-12 | 2015-05-20 | 联合汽车电子有限公司 | Method for manufacturing products by cast components through copper brazing |
| CN111774939A (en) * | 2019-04-04 | 2020-10-16 | 昆山德尚金属制品有限公司 | Surface treatment method for stainless steel welded pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5072398B2 (en) | 2012-11-14 |
| WO2008123147A1 (en) | 2008-10-16 |
| TW200920536A (en) | 2009-05-16 |
| TWI426974B (en) | 2014-02-21 |
| JP2008229803A (en) | 2008-10-02 |
| KR101489977B1 (en) | 2015-02-04 |
| KR20090122429A (en) | 2009-11-30 |
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Application publication date: 20100106 |