CN1348844A - Glass protecting ubricant for margin-less close-tolerance forging process of titanium alloy blade - Google Patents
Glass protecting ubricant for margin-less close-tolerance forging process of titanium alloy blade Download PDFInfo
- Publication number
- CN1348844A CN1348844A CN 00130164 CN00130164A CN1348844A CN 1348844 A CN1348844 A CN 1348844A CN 00130164 CN00130164 CN 00130164 CN 00130164 A CN00130164 A CN 00130164A CN 1348844 A CN1348844 A CN 1348844A
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- Prior art keywords
- weight
- glass
- titanium alloy
- margin
- lubricant
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
- C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to glass protective lubricant used for titanium alloy leaf allowance less precision forging technology, it is composed of (wt.%); basic glass D 23-30, basic glass E 13-20, water 30-40 and heat resistant soluble cellulose 10-20; in which the basic glass D is composed of SiO2 66-69, Al2O3 8.5-10.5, 6.5-10.5 wt.% B2O3 6.5-10.5, BaO 0.5-2, CaO 5-7, Na2O 7-9.5 and basic glass E is composed of SiO2 19-23, B2O3 0-2, CaO 0-2, PbO 71-75, K2O 3.5-7 and Na2O 0-2.
Description
The present invention relates to a kind of titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging.
In the titanium alloy blade forging, now have the report [U.S. Pat 4055975] that uses glass protecting lubricant, but do not see the patent report of relevant titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging.According to sample analysis, external existing titanium alloy blade forging belongs to the plumbous borosilicate system of alkali with the composition of glass protecting lubricant, does not contain CaO and BaO in its oxide components fully; The subject matter of Cun Zaiing is that glass carrier belongs to inflammable, poisonous organic component in actual use, and the price height, causes the production cost height.The present invention wards off compositing area in addition, the weight % of CaO and BaO is respectively CaO 5-7.5%, BaO0.5-2% in glass D as described below, and, glass carrier has adopted nontoxic inexpensive water, thereby the titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging of developing new product variety, satisfy this term of reference technology standard, reduced the glass lubricant cost in producing now simultaneously widely.
The objective of the invention is to develop a kind of new composition, be suitable for the glass protecting lubricant that the margin-less close-tolerance forging of 900-960 ℃ of aircraft aero-engine titanium alloy blade forging temperature, 5-10 minute heat time heating time is used.
The inventor has developed the parent glass of two kinds of different performance requirements.Make their reasonable couplings on composition, performance is connected; And reduced the basic anhydride content that substrate has corrosive nature to titanium alloy forging in the design glass ingredient; In order to reach molten condition rapidly, adopted the big oxide components of pyroconductivity design factor in the glass formula; Thereby coating has good anti-oxidation performance in heating process, and good lubricating property is arranged again when forging.
A kind of titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging that the present invention developed, it is made up of the water of parent glass E, 30-40 (weight) % of parent glass D, 13-20 (weight) % of 23-30 (weight) % and the heat resistant type water-soluble cellulose of 10-20 (weight) %.
Wherein parent glass D is by the SiO that accounts for parent glass D gross weight 66-69 (weight) %
2, the Al of 8.5-10.5 (weight) %
2O
3, the B of 6.5-10.5 (weight) %
2O
3, the BaO of 0.5-2 (weight) %, the CaO of 5-7.5 (weight) %, the Na of 7-9.5 (weight) %
2O forms; Parent glass E is by the SiO that accounts for parent glass E gross weight 19-23 (weight) %
2, the B of 0-2 (weight) %
2O
3, the CaO of 0-2 (weight) %, the PbO of 71-75 (weight) %, the K of 3.5-7 (weight) %
2O, and the Na of 0-2 (weight) %
2O forms.
The making step for preparing glass protecting lubricant suspended nitride of the present invention:
1, do not prepare and fusion cast glass D, E by above-mentioned glass composition.Glass melting temperature: 1300-1400 ℃.
2, difference abrading glass D, E are to 300 orders, stand-by.
3, form preparation and lapping lubricant slurry by above-mentioned lubricant.
Form by above-mentioned glass dust, adhesive, additive and suspension media; Selected a kind of hear resistance water-soluble cellulose as adhesive.Heat resistant type is meant that decomposition temperature is not less than 500 ℃.This adhesive can be a methylcellulose for example, and water is beneficial to environmental protection as suspension media and reduces cost.
Above-mentioned ratio weighed reinstall in the grinder, pulverizing-mixing-dispersion processing through the enough time, make the suspended nitride of glass protecting lubricant of the present invention, corresponding particle diameter generally is ground to smaller or equal to 300 orders and promptly is suitable for, also reached this moment and satisfied practical mixing uniformity, can further reduce again by the requirement of concrete condition particle diameter in case of necessity slurry.
Titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging of the present invention has quite intact protection and lubricant effect in actual use, and has reduced the glass lubricant cost in producing, and has reduced environmental pollution.
Embodiment manufacturing process
By following component, difference formulate glass D-1, D-2, E-1, E-2.
The composition of four kinds of glass
The glass trade mark | Oxide content Wt% | |||||||
??SiO 2 | ?Al 2O 3 | ?B 2O 3 | ??BaO | ?CaO | ??PbO | ????K 2O | ?Na 2O | |
??D-1 | ??66 | ??10 | ??6.5 | ??1.5 | ??7 | ??/ | ????/ | ????9 |
??D-2 | ??69 | ??8.5 | ??10 | ??0.5 | ??5 | ??/ | ????/ | ????7 |
??E-1 | ??19 | ??/ | ??/ | ????/ | ??/ | ??74.5 | ????6.5 | ????/ |
??E-2 | ??22.5 | ??/ | ??1 | ????/ | ??1 | ??71 | ????3.5 | ????1 |
With the above-mentioned glass batch for preparing, in silicon molybdenum rod furnace, found respectively, shrend, 2-5mm glass slag is made in oven dry.Glass melting temperature sees the following form:
The fusion temperature of three kinds of glass
The glass trade mark | ????D-1 | ????D-2 | ????E-1 | ????E-2 |
Fusion temperature ℃ | ????1400 | ????1400 | ????1300 | ????1300 |
Grind above each trade mark glass slag respectively, levigate to the 200-300 order, standby.
Determine that 2% methylcellulose is as adhesive; Water is as suspension media.According to the form below is formed the preparation lubricant slurry.
Effect
The lubricant trade mark | ????D-1 | ????D-2 | ????E-1 | ????E-2 | 2% methylcellulose | Water |
????T-1 | ????/ | ????26 | ????/ | ????14 | ????20 | ????40 |
????T-2 | ????22 | ????/ | ????18 | ????/ | ????20 | ????40 |
Two kinds of glass lubricant test datas of T-1, T-2
Glass lubricant high temperature viscosity data
High temperature viscosity method of testing: inner cylinder rotation determination method
The glass lubricant trade mark | High temperature viscosity lg η handkerchief second | ||||||||
870 ℃ | 900 ℃ | 925 ℃ | 930 ℃ | 950 ℃ | 9700 ℃ | ?1000 ?℃ | ?1050 ?℃ | ?1150 ?℃ | |
?T-1 | 3.27 | 3.04 | 2.90 | 2.84 | 2.77 | 2.68 | ?2.52 | ?2.26 | ?1.76 |
?T-2 | 2.47 | 2.29 | 2.15 | 2.14 | 2.04 | 1.90 | ?1.77 | ?1.55 | ?0.93 |
From last table as seen, 900-960 ℃ forging and pressing temperature range, the high temperature viscosity of glass lubricant embodiment of the present invention is 10
2.1-3.0Handkerchief second, this is in the best effort viscosity region of glass lubricant.
The high-temperature characteristic point data of glass lubricant
High-temperature characteristic point method of testing: according to Deutsche industry norm (DIN) DIN51730
The glass lubricant trade mark | Softening point ℃ | Hemisphere point ℃ | Pour point ℃ |
????T-1 | ????785 | ????843 | ????882 |
????T-2 | ????689 | ????790 | ????843 |
The protection of glass protecting lubricant and greasy property test data
[1] the non-oxidizability determination experiment method HB5258-83[2 of steel and high temperature alloy] metal material thermal deformation glass protecting lubricant standard HB7065-94[3] decarburized layer deepness determination experiment method GB224-87
Project | T-1 protects sample | T-2 protects sample | Do not protect sample | Testing standard and conclusion | |
Anti-oxidant weightening finish | Oxidation weight gain (g/m 2) | ??0.022 | ????0.376 | ??3.615 | HB5258-83[1] qualified |
Oxidation rate (g/m 2.hr) | ??0.167 | ????2.891 | ??43.393 | ||
Evaluation | Anti-oxidant | Anti-oxidant | Not anti-oxidant | ||
Coefficient of friction (μ) | ??0.064- ??0.075 | ????0.086- ????0.095 | ??0.50 | HB7065-94[2] qualified | |
Oxidated layer thickness (mm) | Do not have | Do not have | ??0.03 | GB224-87[3] qualified | |
Decarburized layer (mm) | Do not detect the decarburization phenomenon | Do not detect the decarburization phenomenon |
Glass protecting lubricant of the present invention shows satisfied in the titanium alloy blade margin-less close-tolerance forging, in the forging and pressing process, forms full continuous black glass rete at surface of the work, with cold draw, forms light, uniform glass film.Workpiece behind sandblast or the ball blast, surperficial non-oxidation, metallic luster is good, and is bright and clean smooth, free of surface defects, matrix non-oxidation, corrosion; Surface roughness reaches more than 6 through the judgement of standard method of comparison.
Its protection of glass protecting lubricant of the present invention and greasy property all reach the processing quality requirement that titanium alloy does not have surplus finish forge blade, and have used in production in enormous quantities.
Claims (2)
1, a kind of titanium alloy blade glass protecting lubricant for margin-less close-tolerance forging, it is made up of the water of parent glass E, 30-40 (weight) % of parent glass D, 13-30 (weight) % of 23-30 (weight) % and the heat resistant type water-soluble cellulose of 10-20 (weight) %;
Wherein, parent glass D is by the SiO that accounts for parent glass D gross weight 66-69 (weight) %
2, the Al of 8.5-10.5 (weight) %
2O
3, the B of 6.5-10.5 (weight) %
2O
3, the BaO of 0.5-2 (weight) %, the CaO of 5-7.5 (weight) %, the Na of 7-9.5 (weight) %
2O forms;
Parent glass E is by the SiO that accounts for parent glass E gross weight 19-23 (weight) %
2, the B of 0-2 (weight) %
2O
3, the CaO of 0-2 (weight) %, the PbO of 71-75 (weight) %, the K of 3.5-7 (weight) %
2O, and the Na of 0-2 (weight) %
2O forms.
2, according to the described glass protecting lubricant of claim 1, wherein, described heat resistant type water-soluble cellulose is a methylcellulose.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00130164 CN1348844A (en) | 2000-10-16 | 2000-10-16 | Glass protecting ubricant for margin-less close-tolerance forging process of titanium alloy blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00130164 CN1348844A (en) | 2000-10-16 | 2000-10-16 | Glass protecting ubricant for margin-less close-tolerance forging process of titanium alloy blade |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1348844A true CN1348844A (en) | 2002-05-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00130164 Pending CN1348844A (en) | 2000-10-16 | 2000-10-16 | Glass protecting ubricant for margin-less close-tolerance forging process of titanium alloy blade |
Country Status (1)
Country | Link |
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CN (1) | CN1348844A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1293961C (en) * | 2005-03-04 | 2007-01-10 | 宝钢集团上海五钢有限公司 | Production method of large-size titanium alloy intermediate rod material |
CN102703200A (en) * | 2012-06-04 | 2012-10-03 | 中国航空工业集团公司北京航空材料研究院 | Surface protection lubricant used for high temperature alloy isothermal forging |
CN105271711A (en) * | 2015-10-13 | 2016-01-27 | 大连工业大学 | Lubricant or release agent with low melting point, preparation method and application of lubricant or release agent |
-
2000
- 2000-10-16 CN CN 00130164 patent/CN1348844A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1293961C (en) * | 2005-03-04 | 2007-01-10 | 宝钢集团上海五钢有限公司 | Production method of large-size titanium alloy intermediate rod material |
CN102703200A (en) * | 2012-06-04 | 2012-10-03 | 中国航空工业集团公司北京航空材料研究院 | Surface protection lubricant used for high temperature alloy isothermal forging |
CN105271711A (en) * | 2015-10-13 | 2016-01-27 | 大连工业大学 | Lubricant or release agent with low melting point, preparation method and application of lubricant or release agent |
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