CN1223659C - Prepn and application of glass lubricant specially for hot extrusion of high temperature alloy pipe - Google Patents
Prepn and application of glass lubricant specially for hot extrusion of high temperature alloy pipe Download PDFInfo
- Publication number
- CN1223659C CN1223659C CN 02132632 CN02132632A CN1223659C CN 1223659 C CN1223659 C CN 1223659C CN 02132632 CN02132632 CN 02132632 CN 02132632 A CN02132632 A CN 02132632A CN 1223659 C CN1223659 C CN 1223659C
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- China
- Prior art keywords
- glass
- high temperature
- lubricant
- hot extrusion
- temperature alloy
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- Expired - Fee Related
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- 239000011521 glass Substances 0.000 title claims abstract description 67
- 239000000314 lubricant Substances 0.000 title claims abstract description 42
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 34
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 27
- 239000001913 cellulose Substances 0.000 claims abstract description 14
- 229920002678 cellulose Polymers 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 239000003595 mist Substances 0.000 claims description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000005097 cold rolling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 18
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000002156 mixing Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910000601 superalloy Inorganic materials 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 1
Landscapes
- Glass Compositions (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a special glass lubricant for the hot extrusion of high temperature alloy pipes. The present invention is characterized in that the lubricant is composed of the following components by weight percentage: 2 to 3 of Cr2O3, 10 to 20 of heat-resistant cellulose, 32 to 40 of H glass and H2O as the rest, wherein the H glass adopts the following components by weight percentage: 10 to 18 of Al2O3, 12 to 18 of CaO, 3 to 5 of Na2O, 10 to 18 of B2O3 and SiO2 as the rest. Besides the action of high temperature lubrication, the present invention also has the functions of insulating heat and lowering the reduction of blank temperature, and has stable chemical property and no chemical reaction with blank metal. The lubricant of the present invention is viscous at usage temperature and has a good lubrication effect, which increases the quality of products, increases the production efficiency and reduce the production cost. Indicated by experiments, the service life of the present invention is at least one time longer than that of other lubricants for extruding concave dies, the quality meets the requirements according to the indication of extrusion pipe blanks, the extrusion pressure is lowered for 18% as compared with that of other lubricants, the energy consumption is reduced, the reduction of the surface temperature of blanks is decelerated, and the plasticity of material is increased. Compared with the existing methods of hole drilling and cold rolling, the present invention can save material for more than 10%, increase the efficiency for more than 100% and reduce the cost for more than 40%.
Description
Technical field:
The present invention relates to the processing technology of metal pipe material, a kind of glass lubricant specially for hot extrusion of high temperature alloy pipe and using method thereof are provided especially.
Background technology:
High temperature alloy pipe is the material that is widely used in energy conversion system key part in the industry such as Aeronautics and Astronautics aircraft, naval vessel, generating, rocket engine, nuclear reactor, locomotive and petrochemical complex.The effective means of high temperature alloy pipe base is hot extrusion processing, and the technology of extrusion processing most critical is exactly the lubricant technology.For nickel-base high-temperature alloy material, because intensity is very high, in extrusion process, the lubricant of employing must have the high temperature lubricating effect.
For stainless material or the lower superalloy of intensity, common lubricating method is that glass powder is spread upon on the blank and mould after the preheating, then with blank heating to extrusion temperature.Another kind method is that lubricant is heated to melting state, blank is placed in the lubricant dips, and pushes then.When above lubricating method was applied to the high temperature alloy pipe extruding, the problem of existence was that the extruded tube surface tear is serious, and squeeze is bigger, and the less extrusion machine of extruding tonnage can't be processed.
Summary of the invention:
Of the present inventionly provide a kind of glass lubricant specially that is suitable for the superalloy hot extrusion, realize the hot-pressed of high temperature alloy pipe, improve the quality of products and productivity, reduce cost by changing lubricant composition and lubricating system.
The invention provides a kind of glass lubricant specially for hot extrusion of high temperature alloy pipe, it is characterized in that lubricant is made of weight percent following compositions:
Cr
2O
3 2～3
Heat resistant type Mierocrystalline cellulose 10～20
H glass 32～50
H
2The O surplus.
In the glass lubricant specially for hot extrusion of high temperature alloy pipe of the present invention, used H glass better adopts following compositions, weight percentage:
Al
2O
3 10～18
CaO 12～18
Na
2O 3～5
B
2O
3 10～18
SiO
2Surplus.
Wherein, SiO
2Weight percentage be preferably in 50～60.
The present invention also provides the preparation method of above-mentioned glass lubricant specially for hot extrusion of high temperature alloy pipe, it is characterized in that founding by described proportional arrangement H glass that shrend grinds into the H glass micro mist of granularity less than 0.07mm; With above-mentioned H glass micro mist, heat resistant type Mierocrystalline cellulose, granularity Cr less than 0.1mm
2O
3Be mixed the ball milling homogenizing.
Glass lubricant specially for hot extrusion of high temperature alloy pipe of the present invention need successively be wrapped in woven fiber glass on the blank after the preheating in use, and every layer is coated with glass lubricant, oven dry; Blank heating is pushed behind extrusion temperature.
Glass lubricant specially for hot extrusion of high temperature alloy pipe of the present invention not only has the high temperature lubricating effect, also has heat-blocking action, has alleviated the reduction of blank temperature; And chemical property is stable, not with blank metal generation chemical reaction; Glass lubricant specially of the present invention becomes thick under use temperature, and lubricant effect is good.Thereby improved quality product, improved production efficiency, reduced production cost.Through examination, the life-span of Extruding die was enhanced about more than once when the life-span of Extruding die was than other lubricant of employing when adopting high temperature alloy pipe special lubricant for squeezing of the present invention; Extrusion tube blank shows that quality reaches requirement; Compare squeeze with other lubricant and reduce by 18%, reduced energy consumption; Slow down the reduction of blank surface temperature, improved the plasticity of material.Compare with the existing boring cold rolling process that adopts, material can be saved more than 10%, and efficient can improve more than 100%, and cost reduces more than 40%.
Embodiment:
Among the present invention, be that 19mm, external diameter are that the superalloy In718 of 60mm and the pipe of GH1140 have carried out the hot extrusion test to internal diameter respectively.Process is: woven fiber glass successively is wrapped on the blank after the preheating, and every layer is coated with the glass lubricant among the embodiment, wraps up three layers altogether, and oven dry forms the lubricated jointly combined lubrication mode of woven fiber glass and glass powder; Blank heating is pushed behind extrusion temperature.The test conditions of In718 is: 400 ℃ of mold preheating temperatures, 1120 ℃ of extrusion temperatures, extrusion ratio 4.The test conditions of GH1140 is: 400 ℃ of mold preheating temperatures, 1100 ℃ of extrusion temperatures, extrusion ratio 6.1.
Embodiment 1
Press 60%SiO
2, 15%Al
2O
3, 12%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 40% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface is smooth, and is up-to-standard.
Embodiment 2
Press 55%SiO
2, 18%Al
2O
3, 14%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 40% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface is smooth, and is up-to-standard.
Embodiment 3
Press 50%SiO
2, 10%Al
2O
3, 18%CaO, 5%Na
2O, 17%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 40% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface is smooth, and is up-to-standard.
Comparative example 1
Press 65%SiO
2, 5%Al
2O
3, 12%CaO, 3%Na
2O, 15%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 40% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface has scuffing, and is off quality.
Comparative example 2
Press 45%SiO
2, 20%Al
2O
3, 12%CaO, 3%Na
2O, 20%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 40% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface has scuffing, and is off quality.
Embodiment 4
Press 55%SiO
2, 18%Al
2O
3, 14%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 32% H glass micro mist, 2% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 10% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface is smooth, and is up-to-standard.
Embodiment 5
Press 55%SiO
2, 18%Al
2O
3, 14%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 50% H glass micro mist, 5% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 20% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, product surface is smooth, and is up-to-standard.
Comparative example 3
Press 55%SiO
2, 18%Al
2O
3, 14%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 55% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 15% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, quality product is defective.
Comparative example 4
Press 55%SiO
2, 18%Al
2O
3, 14%CaO, 3%Na
2O, 10%B
2O
3Preparation H frit, high temperature melting, shrend becomes block H glass, through corase grind, fine grinding, correct grinding, crosses 200 mesh sieves, gets the H glass micro mist of granularity less than 0.07mm.Again with 30% H glass micro mist, 3% 100 orders (granularity is less than 0.1mm) Cr
2O
3, 5% commercially available heat resistant type Mierocrystalline cellulose, the water mixing and ball milling of surplus get glass lubricant specially for hot extrusion of high temperature alloy pipe, by above-mentioned condition In718 and GH1140 pipe carried out the hot extrusion test, quality product is defective.
Claims (4)
1. glass lubricant specially for hot extrusion of high temperature alloy pipe is characterized in that lubricant is made of weight percent following compositions:
Cr
2O
3 2～3
Heat resistant type Mierocrystalline cellulose 10～20
H glass 32～40
H
2The O surplus;
Wherein H glass adopts following compositions, weight percentage:
Al
2O
3 10～18
CaO 12～18
Na
2O 3～5
B
2O
3 10～18
SiO
2Surplus.
2. according to the described glass lubricant specially for hot extrusion of high temperature alloy pipe of claim 1, it is characterized in that in the described H glass SiO
2Weight percentage 50～60.
3. the preparation method of claim 1 or 2 described glass lubricant specially for hot extrusion of high temperature alloy pipe is characterized in that disposing in proportion H glass micro mist, heat resistant type Mierocrystalline cellulose, the granularity Cr less than 0.1mm
2O
3The ball milling homogenizing is mixed.
4. the application of the described glass lubricant specially for hot extrusion of high temperature alloy pipe of claim 1 is characterized in that: woven fiber glass successively is wrapped on the batching after the preheating, and every layer is coated with glass lubricant, oven dry; Blank heating is pushed behind extrusion temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02132632 CN1223659C (en) | 2002-07-19 | 2002-07-19 | Prepn and application of glass lubricant specially for hot extrusion of high temperature alloy pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02132632 CN1223659C (en) | 2002-07-19 | 2002-07-19 | Prepn and application of glass lubricant specially for hot extrusion of high temperature alloy pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1468944A CN1468944A (en) | 2004-01-21 |
| CN1223659C true CN1223659C (en) | 2005-10-19 |
Family
ID=34145257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02132632 Expired - Fee Related CN1223659C (en) | 2002-07-19 | 2002-07-19 | Prepn and application of glass lubricant specially for hot extrusion of high temperature alloy pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1223659C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735879B (en) * | 2008-11-04 | 2012-08-29 | 北京有色金属研究总院 | Titanium alloy extrusion lubricant, preparation and use methods thereof |
| 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 |
| CN103722037B (en) * | 2013-12-20 | 2015-11-18 | 河北宏润核装备科技股份有限公司 | The glass lubricant applying device of high temperature blank in a kind of hot extrusion technique |
| CN105439526B (en) * | 2014-08-08 | 2017-11-03 | 宝钢特钢有限公司 | The preparation method of steel pipe hot extrusion glass lubrication pad |
| CN105503033B (en) * | 2014-09-26 | 2017-05-24 | 宝钢特钢有限公司 | Gasket for thermal simulation test and preparation method thereof |
-
2002
- 2002-07-19 CN CN 02132632 patent/CN1223659C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1468944A (en) | 2004-01-21 |
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