CN101508930B - Glass lubricant for extrusion of gamma-TiAl alloy rod bar and method of producing the same - Google Patents
Glass lubricant for extrusion of gamma-TiAl alloy rod bar and method of producing the same Download PDFInfo
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- CN101508930B CN101508930B CN2009100716167A CN200910071616A CN101508930B CN 101508930 B CN101508930 B CN 101508930B CN 2009100716167 A CN2009100716167 A CN 2009100716167A CN 200910071616 A CN200910071616 A CN 200910071616A CN 101508930 B CN101508930 B CN 101508930B
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- glass
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- tial alloy
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- alloy bar
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Abstract
The invention relates to a glass lubricant for gamma-TiAl alloy bar extrusion and a preparation method thereof. The invention solves the problem that the existing lubricant has poor wetting property, has very strict requirements on the initial extrusion temperature of the extrusion bar, thus causing that the thickness of the extrusion bar is uneven, the surface of the extrusion bar has crack, even is fractured and the extrusion force is large, which wastes energy. The glass lubricant is made from L glass, graphite and clay. The preparation method as follows: 1. the raw materials are weighted; 2. glass waste sludge is prepared; 3. the glass waste sludge is ground into micropowder, blended with the graphite, and then ground with balls to obtain the glass lubricant. The product has the advantages that the wetting property is good, the prepared bar has even thickness, smooth and crackless surface, low preparation cost, energy conservation and the preparation method is simple.
Description
Technical field
The present invention relates to a kind of lubricant and preparation method thereof.
Background technology
Along with developing rapidly of aerospace; The improving constantly of mover thrust-weight ratio (engine high pressure compressor blade working temperature will reach more than 800 ℃); Make its material requirements to engine blade increasingly high (high specific strength, high specific stiffness, low-expansion coefficient and good flame retardancy), γ-TiAl base alloy has been applied in this field because of it has above properties now; In γ-TiAl base alloy bar material base; The best way is the hot extrusion processing method; And one of most critical process is exactly that lubricant uses in extrusion processing; But there is wettability poor (heating surpasses basic forfeiture lubricant effect after 2 hours in process furnace) in existing lubricant, to the problem of the initial compression temperature control requirement of extruded bars too strict (temperature fluctuation must not greater than 50 ℃), causes pushing that the bar thickness that obtains is uneven, extruded bars surperficially crackle even fracture occur, squeeze is big so that the defective that wastes energy.
Summary of the invention
The present invention exists wettability poor, too strict to the initial compression temperature control requirement of extruded bars in order to solve existing lubricant; Cause pushing that the bar thickness that obtains is uneven, extruded bars surperficially crackle even fracture occur, squeeze is big so that the problem that wastes energy, and a kind of glass lubricant that is used for the extruding of gamma-TiAl alloy bar and preparation method thereof is provided.
The glass lubricant that is used for gamma-TiAl alloy bar extruding is processed by 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
The preparation method who is used for the glass lubricant of gamma-TiAl alloy bar extruding carries out according to following steps: one, take by weighing 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage respectively; Two, L glass that takes by weighing and clay being put into the high alumina crucible, is to sinter to fusing under 1050～1100 ℃ the condition in temperature, shrend subsequently, the glass slag; Three, glass sizing being become particle diameter is 100～150 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under 40～60r/min condition then in ball milling speed, ball milling 24～48h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein in the step 1 L glass by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
The glass lubricant that the present invention obtains is used for the extruding of gamma-TiAl alloy bar has good lubricating property, and chemical property is stable, not with the blank metal chemical reaction that reacts; The glass lubricant wettability excellent (under preheating temperature, can stand 8～10h heat-processed, and not weaken its lubricant effect) that is used for the extruding of gamma-TiAl alloy bar that the present invention obtains; The glass lubricant that is used for the extruding of gamma-TiAl alloy bar that the present invention obtains can hot extrusion and the interval leap of extrusion temperature big (can realize 200～300 ℃ leap) under 1200～1450 ℃ hot conditions through recording.The gamma-TiAl alloy bar quality that the glass lubricant that adopts the present invention to make squeezes out is good, even thickness, and surperficial flawless, nothing cave in and can be continuously extruded, have reduced squeeze, have practiced thrift the energy.
Description of drawings
Fig. 1 is the comparison diagram of squeezing effect of glass lubricant and the existing lubricant of embodiment 23 preparation; " ■-" squeezes out the effect curve of bar for the glass lubricant of preparation among Fig. 1, and " ▲-" squeezes out the effect curve of bar for existing lubricant.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: the glass lubricant that is used for gamma-TiAl alloy bar extruding of this embodiment is processed by 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
Embodiment two: the difference of this embodiment and embodiment one is that the glass lubricant that is used for the extruding of gamma-TiAl alloy bar is processed by 55%～63% L glass, 32%～38% graphite and 3%～13% clay by weight percentage.Other is identical with embodiment one.
Embodiment three: the difference of this embodiment and embodiment one is that the glass lubricant that is used for the extruding of gamma-TiAl alloy bar is processed by 58% L glass, 34% graphite and 8% clay by weight percentage.Other is identical with embodiment one.
Embodiment four: the difference of this embodiment and embodiment one to three is that L glass is by mass percentage by 11%～14% TiO
2, 3.5%～4.5% B
2O
3, 0.3%～0.7% Al
2O
3, 0.3%～0.7% SiO
2, 0.8%～1.4% Cr
2O
3, 0.8%～1.4% Fe
2O
3Process with the PbO of surplus.Other is identical with embodiment one to three.
Embodiment five: the difference of this embodiment and embodiment one to three is that L glass is by mass percentage by 12% TiO
2, 4.0% B
2O
3, 0.5% Al
2O
3, 0.5% SiO
2, 1.2% Cr
2O
3, 1.2% Fe
2O
3Process with the PbO of surplus.Other is identical with embodiment one to three.
Embodiment six: this embodiment is that graphite is 100～150 purpose high purity graphites with embodiment four or five difference.Other is identical with embodiment four or five.
Embodiment seven: this embodiment is that graphite is 110～140 purpose high purity graphites with embodiment four or five difference.Other is identical with embodiment four or five.
Embodiment eight: this embodiment is that graphite is 120 purpose high purity graphites with embodiment four or five difference.Other is identical with embodiment four or five.
Embodiment nine: the preparation method of the glass lubricant that is used for gamma-TiAl alloy bar extruding of this embodiment carries out according to following steps: one, take by weighing 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage respectively; Two, L glass that takes by weighing and clay being put into the high alumina crucible, is to sinter to fusing under 1050～1100 ℃ the condition in temperature, shrend subsequently, the glass slag; Three, glass sizing being become particle diameter is 100～150 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under 40～60r/min condition then in ball milling speed, ball milling 24～48h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein in the step 1 L glass by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
Embodiment ten: the difference of this embodiment and embodiment nine is: take by weighing 55%～63% L glass, 32%～38% graphite and 3%～7% clay in the step 1 by weight percentage respectively.Other step and parameter are identical with embodiment nine.
Embodiment 11: the difference of this embodiment and embodiment nine is: take by weighing 58% L glass, 34% graphite and 8% clay in the step 1 by weight percentage respectively.Other step and parameter are identical with embodiment nine.
Embodiment 12: the difference of this embodiment and embodiment nine to 11 is: L glass is by mass percentage by 11%～14% TiO in the step 1
2, 3.5%～4.5% B
2O
3, 0.3%～0.7% Al
2O
3, 0.3%～0.7% SiO
2, 0.8%～1.4% Cr
2O
3, 0.8%～1.4% Fe
2O
3Process with the PbO of surplus.Other step and parameter are identical with embodiment nine to 11.
Embodiment 13: the difference of this embodiment and embodiment nine to 11 is: L glass is by mass percentage by 12% TiO in the step 1
2, 4.0% B
2O
3, 0.5% Al
2O
3, 0.5% SiO
2, 1.2% Cr
2O
3, 1.2% Fe
2O
3Process with the PbO of surplus.Other step and parameter are identical with embodiment nine to 11.
Embodiment 14: this embodiment with the difference of embodiment nine to 13 is: graphite is 100～150 purpose high purity graphites in the step 1.Other step and parameter are identical with embodiment nine to 13.
Embodiment 15: this embodiment with the difference of embodiment nine to 13 is: graphite is 120 purpose high purity graphites in the step 1.Other step and parameter are identical with embodiment nine to 13.
Embodiment 16: the difference of this embodiment and embodiment nine to 15 is: under temperature is 1080 ℃ condition, sinter to fusing in the step 2.Other step and parameter are identical with embodiment nine to 15.
Embodiment 17: this embodiment with the difference of embodiment nine to 16 is: in the step 3 glass sizing being become particle diameter is 110～140 purpose glass micro mists.Other step and parameter and embodiment nine to ten six phases are together.
Embodiment 18: this embodiment with the difference of embodiment nine to 16 is: in the step 3 glass sizing being become particle diameter is 120 purpose glass micro mists.Other step and parameter and embodiment nine to ten six phases are together.
Embodiment 19: this embodiment with the difference of embodiment 17 or 18 is: ball milling speed is 45～55r/min in the step 3.Other step and parameter are identical with embodiment 17 or 18.
Embodiment 20: this embodiment with the difference of embodiment 17 or 18 is: ball milling speed is 50r/min in the step 3.Other step and parameter are identical with embodiment 17 or 18.
Embodiment 21: this embodiment with the difference of embodiment nine to 20 is: the ball milling time is 30～40h in the step 3.Other step and parameter are identical with embodiment nine to 20.
Embodiment 22: this embodiment with the difference of embodiment nine to 20 is: the ball milling time is 35h in the step 3.Other step and parameter are identical with embodiment nine to 20.
Embodiment 23: the preparation method of the glass lubricant that is used for gamma-TiAl alloy bar extruding of this embodiment carries out according to following steps: one, take by weighing 60% L glass, 35% graphite and 5% clay by weight percentage respectively; Two, L glass that takes by weighing and clay being put into the high alumina crucible, is to sinter to fusing under 1100 ℃ the condition in temperature, shrend subsequently, the glass slag; Three, glass sizing being become particle diameter is 120 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under the 50r/min condition then in ball milling speed, ball milling 36h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein in the step 1 L glass by mass percentage by 12% TiO
2, 4.0% B
2O
3, 0.5% Al
2O
3, 0.5% SiO
2, 1.2% Cr
2O
3, 1.2% Fe
2O
3Process with the PbO of surplus.
Casting rod to behind the gamma-TiAl alloy jacket of diameter 58mm has carried out the hot extrusion experiment; The cup of internal diameter 58mm, wall thickness 3mm is processed in the glass lubricant precompressed that this embodiment is made; Then with mould and die preheating to 150～200 ℃; Cup with the glass lubricant presuppression is heated to 700～750 ℃ again, then blank is preheated to 1200～1325 ℃, then the blank after the preheating is put into the cup of glass lubricant presuppression; Transfer at last and carry out hot extrusion in the mould rapidly, extrusion ratio is 6～9: 1.Shown in the extruded bars diameter that obtains such as Fig. 1 curve " ■-", the diameter of rod that as can be seen from the figure obtains does not have considerable change, can know the lubricant wets excellent performance that this embodiment obtains indirectly like this, the bar even thickness that obtains, smooth; Adopt existing lubricant to carry out the hot extrusion experiment with the casting rod of similarity condition after to the gamma-TiAl alloy jacket of diameter 58mm; The extruded bars diameter that obtains such as Fig. 1 curve " ▲-" shown in; The diameter of rod that as can be seen from the figure obtains changes huge; Can know existing lubricant wets poor performance so indirectly, the inhomogeneous even fracture of the bar thickness that obtains.Serve as the test initial point with extrusion molding place at first of gamma-TiAl alloy bar in the hot extrusion experiment, axially measure along the gamma-TiAl alloy bar then.The graphic representation X-coordinate is the distance (axial along the gamma-TiAl alloy bar) between each TP and the initial point among Fig. 1, and ordinate zou is the diameter that squeezes out the gamma-TiAl alloy bar.
Claims (8)
1. glass lubricant that is used for gamma-TiAl alloy bar extruding, the glass lubricant that it is characterized in that being used for the extruding of gamma-TiAl alloy bar are processed by 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
2. a kind of glass lubricant that is used for gamma-TiAl alloy bar extruding according to claim 1, the glass lubricant that it is characterized in that being used for the extruding of gamma-TiAl alloy bar are processed by 55%～63% L glass, 32%～38% graphite and 3%～7% clay by weight percentage.
3. a kind of glass lubricant that is used for the extruding of gamma-TiAl alloy bar according to claim 1 is characterized in that graphite is 100～150 purpose high purity graphites.
4. preparation method who is used for the glass lubricant of gamma-TiAl alloy bar extruding is characterized in that a kind of preparation method who is used for the glass lubricant of gamma-TiAl alloy bar extruding carries out according to following steps: one, take by weighing 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage respectively; Two, L glass that takes by weighing and clay being put into the high alumina crucible, is to sinter to fusing under 1050～1100 ℃ the condition in temperature, shrend then, the glass slag; Three, glass sizing being become particle diameter is 100～150 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under 40～60r/min condition then in ball milling speed, ball milling 24～48h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein in the step 1 L glass by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Process with the PbO of surplus.
5. a kind of preparation method who is used for the glass lubricant of gamma-TiAl alloy bar extruding according to claim 4 is characterized in that taking by weighing respectively by weight percentage in the step 1 55%～63% L glass, 32%～38% graphite and 3%～7% clay.
6. according to claim 4 or 5 described a kind of preparing methods that are used for the glass lubricant of gamma-TiAl alloy bar extruding, it is characterized in that in the step 3 glass sizing being become particle diameter is 110～140 purpose glass micro mists.
7. a kind of preparation method who is used for the glass lubricant of gamma-TiAl alloy bar extruding according to claim 6 is characterized in that ball milling speed is 45～55r/min in the step 3.
8. according to claim 4,5 or 7 described a kind of preparing methods that are used for the glass lubricant of gamma-TiAl alloy bar extruding, it is characterized in that the ball milling time is 30～40h in the step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100716167A CN101508930B (en) | 2009-03-23 | 2009-03-23 | Glass lubricant for extrusion of gamma-TiAl alloy rod bar and method of producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100716167A CN101508930B (en) | 2009-03-23 | 2009-03-23 | Glass lubricant for extrusion of gamma-TiAl alloy rod bar and method of producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101508930A CN101508930A (en) | 2009-08-19 |
| CN101508930B true CN101508930B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100716167A Expired - Fee Related CN101508930B (en) | 2009-03-23 | 2009-03-23 | Glass lubricant for extrusion of gamma-TiAl alloy rod bar and method of producing the same |
Country Status (1)
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745560B (en) * | 2009-12-10 | 2011-08-24 | 内蒙古北方重工业集团有限公司 | Glass cushion and preparation method |
| CN107629832B (en) * | 2017-09-07 | 2019-05-17 | 北京科技大学 | A kind of titanium alloy and the hot extrusion glass lubricant of zircaloy and preparation method thereof |
-
2009
- 2009-03-23 CN CN2009100716167A patent/CN101508930B/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| JP平3-257038A 1991.11.15 |
| JP昭53-80411 1978.07.15 |
| 吕步云.金属材料在热压变形中用玻璃防护润滑剂.《电子玻璃技术交流会论文集》.2006,第94-98页. * |
| 李光远等.钛合金精锻防护润滑剂的研究.《摩擦学学报》.1984,(第3期),第129-133页. * |
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