CN108588718A - A kind of chemical milling method of titanium alloy precision forged blade - Google Patents
A kind of chemical milling method of titanium alloy precision forged blade Download PDFInfo
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- CN108588718A CN108588718A CN201810370366.6A CN201810370366A CN108588718A CN 108588718 A CN108588718 A CN 108588718A CN 201810370366 A CN201810370366 A CN 201810370366A CN 108588718 A CN108588718 A CN 108588718A
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- 238000003801 milling Methods 0.000 title claims abstract description 58
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 22
- 239000000126 substance Substances 0.000 title claims abstract description 10
- 238000005242 forging Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-N hydrofluoric acid Substances F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000005238 degreasing Methods 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000013527 degreasing agent Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- GRYLNZFGIOXLOG-DYCDLGHISA-N deuterio nitrate Chemical compound [2H]O[N+]([O-])=O GRYLNZFGIOXLOG-DYCDLGHISA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 claims 1
- 239000001488 sodium phosphate Substances 0.000 claims 1
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
-
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
- C23F1/04—Chemical milling
-
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/32—Alkaline compositions
- C23F1/38—Alkaline compositions for etching refractory metals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Invention is related to a kind of chemical milling method of titanium alloy precision forged blade, first by measuring and being grouped, the place minimum to vane thickness difference carries out acid and alkali-resistance protective rubber and protects, then milling is carried out to every group of blade respectively, the purpose that blade uniformly goes amount is effectively achieved so that the profile tolerance and finish of blade meet technological requirement.It is consistent that the present invention realizes removal surplus, avoids complicated surplus after finish-forging and uniformly removes work, entire milling protection process method is simply easy to control, and ensures the profile tolerance and smoothness requirements of titanium alloy blade.
Description
Technical field
The present invention relates to a kind of chemical milling method, especially a kind of chemical milling method of titanium alloy precision forged blade.
Background technology
Titanium alloy blade in forging process due to blade different location deflection, metal fluidity is inconsistent and temperature
The factors such as fluctuation cause the impossible thickness of each blade after forging completely the same, and each position of each blade and standard leaf
Thickness between piece is inconsistent, cannot be met the requirements so as to cause the profile tolerance and finish of titanium alloy blade.And milling is to use
Chemical attack replaces mechanical processing or polishing, to remove blade finish-forging rear surface extra metal and pollution layer, reaches final wheel
The requirement of wide degree and surface smoothness is one of important procedure in titanium alloy precision forged blade production technology.In this way, may be used
To reduce labor intensity, raise labour productivity, reduce cost, and can be to avoid surface stress caused by mechanical processing and polishing
Burn.However during milling, when blade rotates in milling trough roller cylinder, blade shape different location angular speed also differs
Sample so causes different location blade removal amount difference larger.
Invention content
The object of the present invention is to provide a kind of chemical milling methods of titanium alloy precision forged blade to be gone when making titanium alloy blade milling
Except surplus is consistent, avoids complicated surplus after finish-forging and uniformly remove work, entire milling protection process method is simply held
It is easy to control, ensure the profile tolerance and smoothness requirements of titanium alloy blade.
The specific technical solution of the present invention is,
1) it measures：Prepare the titanium alloy blade after forging, chooses three sections of design requirement detection on blade, pass through electricity
Sensibility reciprocal instrument measuring instrument measures the thickness of three positions uniformly put on each section；
2) it is grouped：The thickness of each measurement point is compared with standard thickness, is to divide per 0.05mm to thickness difference
Group, that is, thickness difference is that 0.00mm~0.05mm is first group, and thickness difference is that 0.05mm~0.10mm is second group, and thickness difference is
0.10mm~0.15mm is third group, and so on；
3) it protects：According to the grouping of previous step, a certain group of blade is chosen, to the portion of thickness difference minimum on each blade
Position carries out gluing, and the glue is acid and alkali-resistance protective rubber；
4) match liquid：Degreaser is prepared in degreasing tank, it is a concentration of：Sodium hydroxide:30g/L；Sodium carbonate：40g/L；Phosphoric acid
Sodium：20g/L；Sodium metasilicate：0.75g/L；
Milling agent is prepared in milling slot, it is a concentration of：Nitric acid d=1.4：89~138ml/L；Hydrofluoric acid d=1.1：45
~81ml/L；
5) milling：
It by one group of all blade in the 3) step, is placed in degreasing tank and carries out oil removing, the time is not more than 20 minutes, temperature
Degree is 75 DEG C~95 DEG C；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
Blade is placed in milling slot and carries out milling, milling temperature is 23~27 DEG C, and milling amount is 0.05mm；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
6) dry：Blade is dried, temperature is not less than 80 DEG C, and drying is to blade surface without apparent water droplet.
7) step 3) -5 is repeated) step, protection and milling are carried out to other groups of other blades；
8) final inspection.
Titanium alloy blade is after finish forge, and the thickness difference of each section does not exceed 0.05mm generally on each blade, the present invention
First by measuring and being grouped, blade is divided into several groups by the standard of 0.05mm, milling then is carried out to every group of blade respectively,
Keep the removal amount of every group of blade identical, so that rotor blade at different levels achievees the purpose that homogenize the amount of milling；When using inductance
After measuring instrument progress thickness measure, place progress acid and alkali-resistance protective rubber such as minimum to vane thickness difference protects, then passing through
After milling, blade at this position will it is super under it is poor lead to blade rejection, can effectively avoid this phenomenon by gluing protection occurs.Titanium
Itself has corrosion stability, selects HF as corrosive agent, and effect is to accelerate the corrosion dissolution of titanium, and increasing hydrofluoric acid concentration can be significantly
Milling speed is improved, selects HNO3 as oxidant, main function is to inhibit the generation of oxygen, while improving the bright and clean of milling surface
Degree.During milling, temperature and tank liquor concentration and milling time to tank liquor have carried out effective control, while being aided with leaf
Piece protects, and has effectively achieved the purpose that blade uniformly goes amount so that the profile tolerance and finish of blade meet technological requirement.Cause
This, it is consistent that the present invention realizes removal surplus, avoids complicated surplus after finish-forging and uniformly removes work, entire milling is anti-
Shield process approach is simply easy to control, and ensures the profile tolerance and smoothness requirements of titanium alloy blade.
Specific implementation mode
A kind of chemical milling method of titanium alloy precision forged blade, when making titanium alloy blade milling, removal surplus is consistent, avoids end
Complicated surplus uniformly removes work after forging, and entire milling protection process method is simply easy to control, and ensures titanium alloy leaf
The profile tolerance and smoothness requirements of piece.
The specific technical solution of the present invention is,
1) it measures：Prepare the titanium alloy blade after forging, chooses three sections of design requirement detection on blade, pass through electricity
Sensibility reciprocal instrument measuring instrument measures the thickness of three positions uniformly put on each section；
2) it is grouped：The thickness of each measurement point is compared with standard thickness, is to divide per 0.05mm to thickness difference
Group, that is, thickness difference is that 0.00mm~0.05mm is first group, and thickness difference is that 0.05mm~0.10mm is second group, and thickness difference is
0.10mm~0.15mm is third group, and so on；
3) it protects：According to the grouping of previous step, a certain group of blade is chosen, to the portion of thickness difference minimum on each blade
Position carries out gluing, and the glue is acid and alkali-resistance protective rubber；
4) match liquid：Degreaser is prepared in degreasing tank, it is a concentration of：Sodium hydroxide:30g/L；Sodium carbonate：40g/L；Phosphoric acid
Sodium：20g/L；Sodium metasilicate：0.75g/L；
Milling agent is prepared in milling slot, it is a concentration of：Nitric acid d=1.4：89~138ml/L；Hydrofluoric acid d=1.1：45
~81ml/L；
5) milling：
It by one group of all blade in the 3) step, is placed in degreasing tank and carries out oil removing, the time is not more than 20 minutes, temperature
Degree is 75 DEG C~95 DEG C；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
Blade is placed in milling slot and carries out milling, milling temperature is 23~27 DEG C, and milling amount is 0.05mm；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
6) dry：Blade is dried, temperature is not less than 80 DEG C, and drying is to blade surface without apparent water droplet.
7) step 3) -5 is repeated) step, protection and milling are carried out to other groups of other blades；
8) final inspection.
Specific implementation mode
A kind of chemical milling method of titanium alloy precision forged blade includes the following steps：
1) it measures：Prepare the titanium alloy blade after forging, chooses three sections of design requirement detection on blade, pass through electricity
Sensibility reciprocal instrument measuring instrument measures the thickness of three positions uniformly put on each section；
2) it is grouped：The thickness of each measurement point is compared with standard thickness, is to divide per 0.05mm to thickness difference
Group, that is, thickness difference is that 0.00mm~0.05mm is first group, and thickness difference is that 0.05mm~0.10mm is second group, and thickness difference is
0.10mm~0.15mm is third group, and so on；
3) it protects：According to the grouping of previous step, a certain group of blade is chosen, to the portion of thickness difference minimum on each blade
Position carries out gluing, and the glue is acid and alkali-resistance protective rubber；
4) match liquid：Degreaser is prepared in degreasing tank, it is a concentration of：Sodium hydroxide:30g/L；Sodium carbonate：40g/L；Phosphoric acid
Sodium：20g/L；Sodium metasilicate：0.75g/L；
Milling agent is prepared in milling slot, it is a concentration of：Nitric acid d=1.4：89~138ml/L；Hydrofluoric acid d=1.1：45
~81ml/L；
5) milling：
It by one group of all blade in the 3) step, is placed in degreasing tank and carries out oil removing, the time is not more than 20 minutes, temperature
Degree is 75 DEG C~95 DEG C；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
Blade is placed in milling slot and carries out milling, milling temperature is 23~27 DEG C, and milling amount is 0.05mm；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
6) dry：Blade is dried, temperature is not less than 80 DEG C, and drying is to blade surface without apparent water droplet.
7) step 3) -5 is repeated) step, protection and milling are carried out to other groups of other blades；
8) final inspection.
Claims (1)
1. a kind of chemical milling method of titanium alloy precision forged blade, which is characterized in that the method includes the following steps：
1) it measures：Prepare the titanium alloy blade after forging, chooses three sections of design requirement detection on blade, pass through inductance value
Instrument measuring instrument measures the thickness of three positions uniformly put on each section；
2) it is grouped：The thickness of each measurement point is compared with standard thickness, is to be grouped per 0.05mm to thickness difference,
That is, it is first group that thickness difference, which is 0.00mm~0.05mm, thickness difference is that 0.05mm~0.10mm is second group, and thickness difference is
0.10mm~0.15mm is third group, and so on；
3) it protects：According to the grouping of previous step, choose a certain group of blade, to the position of thickness difference minimum on each blade into
Row gluing, the glue are acid and alkali-resistance protective rubber；
4) match liquid：Degreaser is prepared in degreasing tank, it is a concentration of：Sodium hydroxide:30g/L；Sodium carbonate：40g/L；Sodium phosphate：
20g/L；Sodium metasilicate：0.75g/L；
Milling agent is prepared in milling slot, it is a concentration of：Nitric acid d=1.4：89~138ml/L；Hydrofluoric acid d=1.1：45~
81ml/L；
5) milling：
It by one group of all blade in the 3) step, is placed in degreasing tank and carries out oil removing, the time is not more than 20 minutes, and temperature is
75 DEG C~95 DEG C；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
Blade is placed in milling slot and carries out milling, milling temperature is 23~27 DEG C, and milling amount is 0.05mm；
Blade is taken out, flowing water is carried out and washes, the time is not less than 1 minute, and temperature is room temperature；
Ion washing is carried out, the time is not less than 1 minute, and temperature is room temperature；
6) dry：Blade is dried, temperature is not less than 80 DEG C, and drying is to blade surface without apparent water droplet.
7) step 3) -5 is repeated) step, protection and milling are carried out to other groups of other blades；
8) final inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370366.6A CN108588718A (en) | 2018-04-23 | 2018-04-23 | A kind of chemical milling method of titanium alloy precision forged blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370366.6A CN108588718A (en) | 2018-04-23 | 2018-04-23 | A kind of chemical milling method of titanium alloy precision forged blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108588718A true CN108588718A (en) | 2018-09-28 |
Family
ID=63614291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370366.6A Pending CN108588718A (en) | 2018-04-23 | 2018-04-23 | A kind of chemical milling method of titanium alloy precision forged blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108588718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835760A (en) * | 2019-11-28 | 2020-02-25 | 陕西斯坦特生物科技有限公司 | Chemical milling method for stainless steel precision forging blade |
| CN111774814A (en) * | 2020-06-27 | 2020-10-16 | 上海航天智能装备有限公司 | Method for processing inner and outer grids of rocket short-shell wall plate |
| CN114112610A (en) * | 2021-11-29 | 2022-03-01 | 江苏科技大学 | Rapid preparation method of metallographic structure of magnesium and magnesium alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835760A (en) * | 2019-11-28 | 2020-02-25 | 陕西斯坦特生物科技有限公司 | Chemical milling method for stainless steel precision forging blade |
| CN111774814A (en) * | 2020-06-27 | 2020-10-16 | 上海航天智能装备有限公司 | Method for processing inner and outer grids of rocket short-shell wall plate |
| CN111774814B (en) * | 2020-06-27 | 2022-08-16 | 上海航天智能装备有限公司 | Method for processing inner and outer grids of rocket short-shell wall plate |
| CN114112610A (en) * | 2021-11-29 | 2022-03-01 | 江苏科技大学 | Rapid preparation method of metallographic structure of magnesium and magnesium alloy |
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