CN104439131A - Method for prolonging service life of amorphous band manufacturing BN nozzle - Google Patents

Method for prolonging service life of amorphous band manufacturing BN nozzle Download PDF

Info

Publication number
CN104439131A
CN104439131A CN201410833441.XA CN201410833441A CN104439131A CN 104439131 A CN104439131 A CN 104439131A CN 201410833441 A CN201410833441 A CN 201410833441A CN 104439131 A CN104439131 A CN 104439131A
Authority
CN
China
Prior art keywords
nozzle
coating
ceramic coating
temperature
service life
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410833441.XA
Other languages
Chinese (zh)
Inventor
李倍
过凤萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU KAIBO MATERIAL TECHNOLOGY Co Ltd
Original Assignee
JIANGSU KAIBO MATERIAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU KAIBO MATERIAL TECHNOLOGY Co Ltd filed Critical JIANGSU KAIBO MATERIAL TECHNOLOGY Co Ltd
Priority to CN201410833441.XA priority Critical patent/CN104439131A/en
Publication of CN104439131A publication Critical patent/CN104439131A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B22D11/0642—Nozzles
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Abstract

The invention discloses a method for prolonging the service life of an amorphous band manufacturing BN nozzle. A Si coating and an Al coating are deposited on the inner surface of the nozzle, high-temperature processing is carried out in the nitrogen atmosphere, and finally a compact Si-Al-O-N ceramic coating with a certain thickness is formed in the nozzle. The high-temperature hardness, the corrosion resistance, the stability and other performance of the Si-Al-O-N ceramic coating are higher than those of an ordinary silicon nitride ceramic, the thermal expansion coefficient is 3.2*10-6/DEGC, the Si-Al-O-N ceramic coating is not soaked in other materials, the using temperature can reach 1,700 DEG C, the Si-Al-O-N ceramic coating is a superior high-temperature antioxidant structure material, the BN nozzle can be prevented from being oxidized, and the service life of the nozzle is greatly prolonged.

Description

Improve the method for non-crystal belt making BN nozzle life
Technical field
The present invention relates to the method improving BN (boron nitride) nozzle life.
Background technology
In spraying Fe base noncrystal alloy band (containing Fe, Si, B) process, the melt contacts of hexagonal AlN nozzle and high temperature (> 1300 DEG C) high pressure, surface oxidation is serious, the boron oxide (B of formation 2o 3) be a kind of glassy melt, this material softens at 450 DEG C, becomes viscous liquid at 600 DEG C.Impact by pressurized melt, boron oxide is easy to be blown away, and nozzle inside diameter expands rapidly, thus causes losing efficacy.
Summary of the invention
The object of the present invention is to provide a kind of method improving non-crystal belt making BN nozzle life.
For achieving the above object, technical scheme of the present invention is a kind of method improving non-crystal belt making BN nozzle life of design, by depositing Si, Al coating at inner nozzle surface, then high-temperature process in nitrogen atmosphere, following reaction occurs:
Si+Al+O2+N2-Si (6-x)Al xO xN (8-x)；
Finally form one deck densification in nozzle interior, there is certain thickness Si-Al-O-N ceramic coating.
Preferably, the deposition of Si-Al-O-N ceramic coating is 0.15 ~ 0.20mm.
Preferably, treatment temperature is 900 ~ 1000 DEG C.
Preferably, 0.5 ~ 1.5 hour processing time.
Preferably, a small amount of oxygen is contained in nitrogen atmosphere.
The high temperature hardness of Si-Al-O-N ceramic coating, corrosion-resistant, stability etc. all higher than common silicon nitride ceramics, thermal coefficient of expansion 3.2 × 10 -6/ DEG C, do not infiltrate with any material, serviceability temperature can reach 1700 DEG C, is excellent high-temperature oxidation resistant structural material, BN nozzle can be protected to avoid oxidation, significantly improve nozzle life.
Processing time is 0.5 ~ 1.5 hour, ensures solidification effect.
The deposition of Si-Al-O-N ceramic coating is 0.15 ~ 0.20mm, and deposition greatly easily comes off, the little not resistance to erosion of deposition.
Coating affinity is better, and the coefficient of expansion is more consistent.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Improving a method for non-crystal belt making BN nozzle life, by depositing Si, Al coating at inner nozzle surface, then high-temperature process in nitrogen atmosphere, following reaction occurring:
Si+Al+O2+N2-Si (6-x)Al xO xN (8-x)；
Finally form one deck densification in nozzle interior, there is certain thickness Si-Al-O-N ceramic coating.
The deposition of Si-Al-O-N ceramic coating is 0.15 ~ 0.20mm.
Treatment temperature is 900 ~ 1000 DEG C.
0.5 ~ 1.5 hour processing time.
Containing a small amount of oxygen in nitrogen atmosphere.
The high temperature hardness of Si-Al-O-N ceramic coating, corrosion-resistant, stability etc. all higher than common silicon nitride ceramics, thermal coefficient of expansion 3.2 × 10 -6/ DEG C, do not infiltrate with any material, serviceability temperature can reach 1700 DEG C, is excellent high-temperature oxidation resistant structural material, BN nozzle can be protected to avoid oxidation, significantly improve nozzle life.
Processing time is 0.5 ~ 1.5 hour, ensures solidification effect.
The deposition of Si-Al-O-N ceramic coating is 0.15 ~ 0.20mm, and deposition greatly easily comes off, the little not resistance to erosion of deposition.
Coating affinity is better, and the coefficient of expansion is more consistent.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (5)

1. improving the non-crystal belt making method of BN nozzle life, it is characterized in that, by depositing Si, Al coating at inner nozzle surface, then high-temperature process in nitrogen atmosphere, following reaction occurring:
Si+Al+O 2+N 2-Si (6-x)Al xO xN (8-x)；
Finally form one deck densification in nozzle interior, there is certain thickness Si-Al-O-N ceramic coating.
2. the method for raising non-crystal belt making BN nozzle life according to claim 1, is characterized in that, the deposition of Si-Al-O-N ceramic coating is 0.15 ~ 0.20mm.
3. the method for raising non-crystal belt making BN nozzle life according to claim 1 and 2, it is characterized in that, treatment temperature is 900 ~ 1000 DEG C.
4. the method for raising non-crystal belt making BN nozzle life according to claim 4, is characterized in that, 0.5 ~ 1.5 hour processing time.
5. the method for raising non-crystal belt making BN nozzle life according to claim 5, is characterized in that, containing a small amount of oxygen in nitrogen atmosphere.
CN201410833441.XA 2014-12-24 2014-12-24 Method for prolonging service life of amorphous band manufacturing BN nozzle Pending CN104439131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410833441.XA CN104439131A (en) 2014-12-24 2014-12-24 Method for prolonging service life of amorphous band manufacturing BN nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410833441.XA CN104439131A (en) 2014-12-24 2014-12-24 Method for prolonging service life of amorphous band manufacturing BN nozzle

Publications (1)

Publication Number Publication Date
CN104439131A true CN104439131A (en) 2015-03-25

Family

ID=52886322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410833441.XA Pending CN104439131A (en) 2014-12-24 2014-12-24 Method for prolonging service life of amorphous band manufacturing BN nozzle

Country Status (1)

Country Link
CN (1) CN104439131A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301780A (en) * 1992-04-24 1993-11-16 Nippon Steel Corp Joined body of ceramics and its production
JPH0769744A (en) * 1993-06-28 1995-03-14 Hitachi Metals Ltd Refractory coating material and member for aluminum melt
JP2000176610A (en) * 1998-12-21 2000-06-27 Nippon Steel Corp Nozzle for jetting molten metal
CN1552669A (en) * 2003-06-02 2004-12-08 贵州工业大学 Cylon-corundum powdery material and its production
CN101066872A (en) * 2007-06-14 2007-11-07 武汉科技大学 Composite Sialon ceramic material and its prepn process
CN102202797A (en) * 2008-10-31 2011-09-28 富士胶卷迪马蒂克斯股份有限公司 Shaping a nozzle outlet
CN102307827A (en) * 2009-02-09 2012-01-04 株式会社Ihi Process for producing sintered sialon ceramic
CN202824574U (en) * 2012-11-05 2013-03-27 江苏锦宏有色金属材料有限公司 Metal nozzle for spraying amorphous alloy strips
CN103433444A (en) * 2013-08-28 2013-12-11 青岛云路新能源科技有限公司 Arc jet nozzle for producing amorphous thin belt
CN103586428A (en) * 2013-11-08 2014-02-19 青岛云路新能源科技有限公司 Integrated strip spraying bag

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301780A (en) * 1992-04-24 1993-11-16 Nippon Steel Corp Joined body of ceramics and its production
JPH0769744A (en) * 1993-06-28 1995-03-14 Hitachi Metals Ltd Refractory coating material and member for aluminum melt
JP2000176610A (en) * 1998-12-21 2000-06-27 Nippon Steel Corp Nozzle for jetting molten metal
CN1552669A (en) * 2003-06-02 2004-12-08 贵州工业大学 Cylon-corundum powdery material and its production
CN101066872A (en) * 2007-06-14 2007-11-07 武汉科技大学 Composite Sialon ceramic material and its prepn process
CN102202797A (en) * 2008-10-31 2011-09-28 富士胶卷迪马蒂克斯股份有限公司 Shaping a nozzle outlet
CN102307827A (en) * 2009-02-09 2012-01-04 株式会社Ihi Process for producing sintered sialon ceramic
CN202824574U (en) * 2012-11-05 2013-03-27 江苏锦宏有色金属材料有限公司 Metal nozzle for spraying amorphous alloy strips
CN103433444A (en) * 2013-08-28 2013-12-11 青岛云路新能源科技有限公司 Arc jet nozzle for producing amorphous thin belt
CN103586428A (en) * 2013-11-08 2014-02-19 青岛云路新能源科技有限公司 Integrated strip spraying bag

Similar Documents

Publication Publication Date Title
WO2010056338A3 (en) Protective coatings resistant to reactive plasma processing
CN101191225B (en) Antiseptic wearable coat and coating method thereof
JP2010535288A5 (en)
JP2016537298A5 (en)
EA201270487A1 (en) METHOD OF APPLYING THIN LAYER
TR201905479T4 (en) Glaze covered with thin layers.
ATE342245T1 (en) ENVIRONMENTAL BARRIER LAYER FOR SILICON-BASED SUBSTRATES
MY165455A (en) Silicon-nitride-containing separating layer having high hardness
EP3239348B1 (en) Insulated bearing and bearing coating method
SG137838A1 (en) Erosion barrier for thermal barrier coatings
WO2010098996A3 (en) High delivery temperature isopipe materials
TW200702317A (en) Dielectric ceramic composition having wide sintering temperature range and reduced exaggerated grain growth
CN104846307B (en) Refractory ceramics coating and its spraying method for Metal Substrate thermal spraying
ATE386829T1 (en) PRODUCTION OF A GAS-TIGHT, CRYSTALLINE MULLITE LAYER USING A THERMAL SPRAY PROCESS
RU2011105001A (en) METHOD FOR COATING AND ANTI-CORROSION COATING FOR TURBINE COMPONENTS
WO2018236744A3 (en) Refractory article, coating composition for preventing redox reaction, and method of manufacturing a refractory article
CN104591797A (en) Method for prolonging service life of BN nozzle
CN104439131A (en) Method for prolonging service life of amorphous band manufacturing BN nozzle
JP2005096411A (en) Article including silicon substrate, bond layer and additional layer formed on bond layer
CN104451533A (en) Method for prolonging service life of boron nitride (BN) nozzle
KR102464219B1 (en) Composition for coating with reduced generation of contaminants and method for producing the same
JP2016098389A (en) Manufacturing method of ferritic stainless steel
CN1214326A (en) Ultra-low cement deposit material for tap hole of iron-mixing bogie
JP5675087B2 (en) Thermal barrier coating, turbine member, gas turbine, and method of manufacturing thermal barrier coating
JP2008274342A (en) Plasma corrosion-resistant material, and member containing the same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150325