CN102806270A - Ferrite stainless steel die with high temperature resistance coating - Google Patents
Ferrite stainless steel die with high temperature resistance coating Download PDFInfo
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- CN102806270A CN102806270A CN201110142639XA CN201110142639A CN102806270A CN 102806270 A CN102806270 A CN 102806270A CN 201110142639X A CN201110142639X A CN 201110142639XA CN 201110142639 A CN201110142639 A CN 201110142639A CN 102806270 A CN102806270 A CN 102806270A
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- stainless steel
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Abstract
The invention provides a ferrite stainless steel die with a high temperature resistance coating, which is provided with following layer structures: a substrate, an intermediate transition layer and the high temperature resistance coating, wherein a ferrite stainless steel die is used as the substrate; the intermediate transition layer is applied onto the substrate; the intermediate layer is a FeCrAlY coating; the high temperature resistance coating is applied onto the intermediate layer; and the high temperature resistance coating contains SiC, TiC, TiO2 and Fe. After the die with the structure, which is provided by the invention, the service life and the use performance of the die can be improved.
Description
Technical field
The present invention relates to a kind of diel, in particular, relate to a kind of ferrite stainless steel mold with high-temperaure coating.
Background technology
Mould is widely used in punch forming processing.Generally need have following performance for stamping forming mould:
(1) under the hot environment, has good rigidity, anti-mechanical impact strength and high hardness.
(2) repeatedly and under the thermal shock of Fast Heating cooling, mould does not crack or is out of shape.
(3) under the hot conditions, chemical reaction does not take place in molding surface and forming metal.
(4) the high-temperature oxydation phenomenon can not take place in mould under hot conditions.
(5) good processability, the surface that is prone to be processed into high accuracy and high surface finish.
Traditional mould that is used to pour into a mould materials such as refractory metal or glass adopts stainless steel or Refractoloy steel as mold materials mostly; But high-temperature oxydation takes place in this mould easily; Under thermal cycle effect repeatedly; The inside crystal phase structure of material changes, and also variation of surface quality, thereby causes mould to lose efficacy easily.
In order to address the above problem, the metal oxide ceramic particle of hard and superhard alloy are used to mfg. moulding die.But, be difficult to be processed into required given shape because described material hardness is very high.So with superhard alloy or high-temperature alloy is die matrix, the composite construction mould that forms wear-resisting, high-temperature corrosion resistance on its surface or have a coating of other property becomes the new direction of industry development.
Summary of the invention
The object of the present invention is to provide a kind of ferrite stainless steel mold with high-temperaure coating, this diel can be used for improving the molding performance of mould and the service life of this mould of significant prolongation.
The present invention has adopted following technical scheme for this reason: a kind of nickel-base heat resisting superalloy mould with high-temperaure coating, and it has with understructure:
(1) a kind of ferrite stainless steel mold is as substrate;
(2) put on suprabasil intermediate layer, described intermediate layer is the FeCrAlY coating;
(3) put on high-temperaure coating on the intermediate layer, described high-temperaure coating comprises SiC, TiC, TiO
2And Fe.
Wherein, the composition of described ferritic stainless steel and composition are: Cr:16-23wt%, Ti:0-0.15wt%, Si:0-1.0wt%, C:0-0.015wt%, Nb:0.3-65wt%, Cu:1.0-2.5wt%; The Fe of Al:0.2-1.5wt% and surplus and unavoidable impurities.
Wherein, in the described FeCrAlY coating, the mass fraction of Fe is: 75-83.5wt%, the mass fraction of Cr is: 8-15wt%, the mass fraction of Al are the Y of 2.5-7.5wt% and surplus.
Wherein, in the high-temperaure coating, contain SiC:35-50wt%, contain TiC:18-45wt%, contain TiO
2: 10-20wt%, surplus is Fe.
Wherein, the thickness of intermediate layer is 5um-100um, and preferably its thickness is 5um-20um.
Wherein, the thickness of high-temperaure coating is 1mm-5mm, and preferably its thickness is 1mm-3mm.
The method that can spray forms the FeCrAlY coating, and annealing forms intermediate layer under protective atmosphere then.Described protective atmosphere annealing is meant vacuum annealing or inert atmosphere annealing or reducing atmosphere annealing, and described protective gas can be selected from by N
2, Ar, H
2In the group that perhaps their combination in any is formed.
Wherein, high-temperaure coating contains SiC, TiC, TiO through spraying
2Form with the powder of Fe.During spraying, its technological parameter is: operating voltage: 25-45V; Spray distance is: 120-180mm; Air pressure is 0.5-0.9MPa.The thickness of high-temperaure coating is 500um-5mm, and preferably its thickness is 2mm-5mm.
Use the intermediate layer can prevent that basalis is in high temperature casting cycle generation high-temperature oxydation phenomenon; Also strengthened the adhesion strength between substrate and the coating in addition; And prevented inner metal level through diffusion, metallic atom wherein diffuses in the high-temperaure coating on surface.
Through the Ni-based ultra heat-resisting mould of method preparation of the present invention, have the FeCrAlY intermediate layer and contain SiC, TiC, TiO
2Coating with the Fe high-temperaure coating; Because setting adjacent one another are and atomic structure are roughly close between substrate and the coating; Therefore, adjacent coating can be because of problems such as atom defects, produces internal stress and causes the problem of bad adhesion between the coating; Through coating structure design of the present invention, the intermediate layer can increase SiC, TiC, the TiO that contains Fe
2Cohesive force between the Ni-based ultra heat-resisting mould between high-temperaure coating and the substrate.And, in the high-temperaure coating of the present invention, also have the nickel of some, can improve the internal stress of face coat.Therefore, adopt the mould of the said structure of the application, can increase the service life and the serviceability thereof of mould.
The specific embodiment
Below will make further explanation to technical scheme of the present invention through typical embodiment.The applicant it is emphasized that following examples only are the needs for the content that specifies invention, and can not think limitation of the present invention.The present invention requires the scope protected, is as the criterion with the technical scheme that claims were limited.
Embodiment 1
Mould 1:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:16wt%, Ti:0.15wt%, Si:0.5wt%, C:0.010wt%, Nb:0.5wt%, Cu:2.5wt%; The Fe of Al:1.5wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 75wt%, the mass fraction of Cr is: 15wt%, the mass fraction of Al are the Y of 7.5wt% and surplus.The thickness of FeCrAlY intermediate layer is 5um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:35wt%, contain TiC:36wt%, TiO
2: the Fe of 12wt% and surplus.The thickness of high-temperaure coating coating is 1mm.
Embodiment 2
Mould 2:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:16wt%, Ti:0.15wt%, Si:0.5wt%, C:0.010wt%, Nb:0.5wt%, Cu:2.5wt%; The Fe of Al:1.5wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 78wt%, the mass fraction of Cr is: 10wt%, the mass fraction of Al are the Y of 7.5wt% and surplus.The thickness of FeCrAlY intermediate layer is 10um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:35wt%, contain TiC:36wt%, TiO
2: the Fe of 12wt% and surplus.The thickness of high-temperaure coating coating is 1.5mm.
Embodiment 3
Mould 3:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:17wt%, Ti:0.10wt%, Si:0.80wt%, Nb:0.60wt%, Cu:2.0wt%; The Ni of Al:0.8wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 79wt%, the mass fraction of Cr is: 14wt%, the mass fraction of Al are the Y of 4.5wt% and surplus.The thickness of FeCrAlY intermediate layer is 15um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:42wt%, contain TiC:32wt%, TiO
2: the Fe of 15wt% and surplus.The thickness of high-temperaure coating coating is 1.5mm.
Embodiment 4
Mould 4:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:17wt%, Ti:0.10wt%, Si:0.80wt%, Nb:0.60wt%, Cu:2.0wt%; The Ni of Al:0.8wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 81wt%, the mass fraction of Cr is: 13wt%, the mass fraction of Al are the Y of 3.5wt% and surplus.The thickness of FeCrAlY intermediate layer is 20um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:42wt%, contain TiC:32wt%, TiO
2: the Fe of 15wt% and surplus.The thickness of high-temperaure coating coating is 2.0mm.
Embodiment 5
Mould 5:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:18wt%, Ti:0.12wt%, Si:0.75wt% or C:0.005wt%, Nb:0.45wt%, Cu:1.5wt%; The Fe of Al:0.9wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 82wt%, the mass fraction of Cr is: 12wt%, the mass fraction of Al are the Y of 4.5wt% and surplus.The thickness of FeCrAlY intermediate layer is 25um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:45wt%, contain TiC:25wt%, TiO
2: the Fe of 18wt% and surplus.The thickness of high-temperaure coating coating is 2.5mm.
Embodiment 6
Mould 6:
Ground floor: the ferritic stainless steel mold base, the composition of wherein said nickel-base heat resisting superalloy and composition are: Cr:18wt%, Ti:0.12wt%, Si:0.75wt% or C:0.005wt%, Nb:0.45wt%, Cu:1.5wt%; The Fe of Al:0.9wt% and surplus and unavoidable impurities.
The second layer: the FeCrAlY intermediate layer, the mass fraction of Fe is: 83.5wt%, the mass fraction of Cr is: 8wt%, the mass fraction of Al are the Y of 7.0wt% and surplus.The thickness of FeCrAlY intermediate layer is 25um.
The 3rd layer: the high-temperaure coating coating, wherein contain SiC:50wt%, contain TiC:28wt%, TiO
2: the Fe of 12wt% and surplus.The thickness of high-temperaure coating coating is 3mm.
Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art is when making various corresponding different dies by summary of the invention according to the present invention; For example through changing known painting method and/or adjust the component and the content of each coating and matrix, but these change and are out of shape the protection domain that resulting mould all should belong to the appended claim of the present invention accordingly.
Claims (8)
1. ferrite stainless steel mold with high-temperaure coating, it has with understructure:
(1) a kind of ferrite stainless steel mold is as substrate;
(2) put on suprabasil intermediate layer, described intermediate layer is the FeCrAlY coating;
(3) put on high-temperaure coating on the barrier layer, described high-temperaure coating comprises SiC, TiC, TiO
2And Ni.
2. the described ferrite stainless steel mold of claim 1, it is characterized in that the mass fraction of Fe is in the described FeCrAlY coating: 75-83.5wt%, the mass fraction of Cr is: 8-15wt%, the mass fraction of Al are the Y of 2.5-7.5wt% and surplus.
3. the described Ni-based ultra heat-resisting mould of claim 1 is characterized in that containing SiC:35-50wt% in the wherein said powder, contains TiC:18-45wt%, contains TiO
2: 10-20wt%, surplus is Fe.
4. the described ferrite stainless steel mold of claim 1, the thickness that it is characterized in that described intermediate layer is 5um-100um.
5. the described ferrite stainless steel mold of claim 5, the thickness that it is characterized in that described intermediate layer is 5um-20um.
6. the described ferrite stainless steel mold of claim 1, the thickness that it is characterized in that described high-temperaure coating is 1mm-5mm.
7. the described ferrite stainless steel mold of claim 6, the thickness that it is characterized in that described high-temperaure coating is 1mm-3mm.
8. the described ferrite stainless steel mold of claim 1 is characterized in that the composition of described ferritic stainless steel and composition are: Cr:16-23wt%, Ti:0-0.15wt%, Si:0-1.0wt%, C:0-0.015wt%, Nb:0.3-65wt%, Cu:1.0-2.5wt%; The Fe of Al:0.2-1.5wt% and surplus and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110142639XA CN102806270A (en) | 2011-05-30 | 2011-05-30 | Ferrite stainless steel die with high temperature resistance coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110142639XA CN102806270A (en) | 2011-05-30 | 2011-05-30 | Ferrite stainless steel die with high temperature resistance coating |
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| Publication Number | Publication Date |
|---|---|
| CN102806270A true CN102806270A (en) | 2012-12-05 |
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ID=47230239
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| CN201110142639XA Pending CN102806270A (en) | 2011-05-30 | 2011-05-30 | Ferrite stainless steel die with high temperature resistance coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779780A (en) * | 2017-12-13 | 2018-03-09 | 苏州浩焱精密模具有限公司 | A kind of high-strength high temperature-resistant mould |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433486A (en) * | 2000-06-08 | 2003-07-30 | 表面工程设计产品公司 | Coating system for high temperature stainless steel |
| CN1465745A (en) * | 2002-06-14 | 2004-01-07 | 中国科学院金属研究所 | Method of risisting high-temp. oxidation and heat corrosion for high-temp. alloy |
| CN1653867A (en) * | 2002-05-08 | 2005-08-10 | 达纳公司 | Plasma-assisted coating |
-
2011
- 2011-05-30 CN CN201110142639XA patent/CN102806270A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433486A (en) * | 2000-06-08 | 2003-07-30 | 表面工程设计产品公司 | Coating system for high temperature stainless steel |
| CN1653867A (en) * | 2002-05-08 | 2005-08-10 | 达纳公司 | Plasma-assisted coating |
| CN1465745A (en) * | 2002-06-14 | 2004-01-07 | 中国科学院金属研究所 | Method of risisting high-temp. oxidation and heat corrosion for high-temp. alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779780A (en) * | 2017-12-13 | 2018-03-09 | 苏州浩焱精密模具有限公司 | A kind of high-strength high temperature-resistant mould |
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Application publication date: 20121205 |