CN107164722A - 一种合金表面涂层及其制备方法 - Google Patents
一种合金表面涂层及其制备方法 Download PDFInfo
- Publication number
- CN107164722A CN107164722A CN201710486145.0A CN201710486145A CN107164722A CN 107164722 A CN107164722 A CN 107164722A CN 201710486145 A CN201710486145 A CN 201710486145A CN 107164722 A CN107164722 A CN 107164722A
- Authority
- CN
- China
- Prior art keywords
- alloy
- coating
- gas
- alloy surface
- high temperature
- 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.)
- Granted
Links
Classifications
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/52—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
- C23C10/54—Diffusion of at least chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/02—Pretreatment of the material to be coated
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
本发明公开了一种合金表面涂层。通过表面预处理、渗剂包埋渗处理、碱清洗、高温碳化等步骤,能够在合金表面形成性能稳定的涂层,该涂层能够有效地提升合金的抗结焦和抗渗碳性能,明显延长材料的清焦周期与使用寿命。本发明的涂层及其形成工艺特别适用于高温合金,尤其是用于烃类原料裂解炉管的高温合金。
Description
技术领域
本发明属于材料及材料加工领域,具体涉及一种合金(特别是用于烃类原料裂解炉管的高温合金)表面涂层及其制备方法。
背景技术
碳氢原料(即,烃类原料)裂解是生产乙烯的最主要途径。裂解炉管用高温合金通常含有大量的Fe、Ni元素,而Fe、Ni元素会在烃类原料裂解过程中催化焦的生长,导致结焦速率明显增加,显著增加传热热阻,降低烯烃产量及收率。同时,这些元素也能导致炉管的严重渗碳现象,明显缩短炉管的服役寿命。因而迫切需要对合金材料进行改性处理,提高其抗结焦、抗渗碳等性能。
专利ZL200610028933.7中,含硫、硅化合物的预处理剂通过载气或者原料气加入到裂解炉中,在高温下与炉管表面发生化学反应,使炉管表面的催化活性位点转化为惰性化合物,从而失去活性。专利US7156979中,加拿大NOVA公司采用氢气-水蒸气混合气,高温下在不锈钢表面制备出一层尖晶石保护膜。专利CN101565807A、CN101565808A、CN102719783A中,进一步采用原位氧化方法,以一步或两步反应工艺于高温下在炉管表面制备出一系列尖晶石涂层。专利US6423415中,一定比例的无机物被喷涂在炉管内壁,再经过高温烧结形成陶瓷涂层。专利CN201010286801.0、CN201010286788.9中,炉管材质中加入稀土元素,然后低氧分压氧化的方法制备出陶瓷涂层。
采用上述专利技术制备的尖晶石保护层等涂层虽然不会催化结焦,能起到一定的抑制结焦作用,但是这些氧化物或者尖晶石在长期的高温渗碳环境中会逐渐碳化,从而逐渐失去保护性能,抑制结焦性能会衰减甚至完全丧失,因此,需要一种在高温渗碳环境中稳定性更好、能长期有效抑制合金炉管结焦的惰性涂层。
发明内容
针对现有技术的不足和应用需求,本发明的目的在于提供一种合金表面涂层及其制备方法。通过包埋渗工艺将Si等元素渗入待处理合金表层,然后在含碳气氛中高温碳化,从而在合金表面形成稳定的涂层。该涂层及其形成工艺特别适用于高温合金,尤其是用于烃类原料裂解炉管的高温合金,如HK40、35Cr45Ni、HP40、Incoloy 800、326L等。形成的涂层能够有效地提升合金的抗结焦和抗渗碳性能,明显延长材料的清焦周期与使用寿命。
为了达成上述目的,本发明采用如下技术方案。
一种在合金表面制备涂层的方法,包含下列步骤:
(1)对合金表面进行除油除锈预处理;
(2)采用包埋渗工艺,用渗剂对合金材料进行处理;
以质量百分比计,所述渗剂的成分为:硅10~50%,铬粉或铬铁粉0~40%,氯化铵1~10%,氟化钠0.2~2%,氧化铈0.1~0.5%,余量为氧化铝;所述渗剂为50~500目的粉末;处理温度为700~1100℃,处理时间为1~10h;
(3)使用碱性溶液对处理后的合金材料表面进行清洗,然后水洗、干燥;
(4)将经过步骤(3)处理的合金材料置于热处理炉内,持续通入由含碳气体和调节气体组成的混合气体,在500~1200℃高温碳化,保温2~20h;
(5)降温冷却至100℃以下,停止通入混合气体。
作为上述制备方法的优选技术方案,步骤(1)中,以质量百分比计,所述合金的成分为:Cr 10~50%,Mn 0~5%,Ni 20~60%,Si 0.2~3%,微量元素 0.01~6%,余量为Fe,所述微量元素包括Ti、Nb、W、Mo、Al、C及稀土元素中的一种或几种。典型的合金材料牌号有,例如HK40、35Cr45Ni、HP40、Incoloy 800、326L等。
优选地,步骤(2)中,处理温度为850~1000℃,处理时间为2~5h。通过包埋渗工艺形成的渗层主要由Cr、Fe、Ni、Si等元素组成。从后续碳化处理和最终涂层的性能考虑,优选地,共渗层中Si所占比例为10~60摩尔%,Cr所占比例为20~60摩尔%,余量为其它元素。渗层厚度优选是10~200μm。
步骤(3)中,使用的碱性溶液优选是浓度为10~50%的NaOH或KOH水溶液。碱清洗可通过淋洗、漂洗、浸泡等方式进行,其目的在于清洗掉表面附着的氧化铬、氟化物、氯化物等腐蚀性成分。
步骤(4)中,所述含碳气体选自甲烷、乙烷、丙烷、甲醇、一氧化碳、二氧化碳中的一种或多种;所述调节气体用以调节高温碳势,选自氢气、氮气、氩气中的一种或几种。混合气体中,含碳气体的摩尔比例为10-60%,优选为20-40%。优选地,碳化温度为700℃~1100℃,保温时间为6~10h。
步骤(5)中,冷却方式可以随炉冷却,也可以5~10℃/min的速率降温。降温至100℃以下(优选室温)后停止通入混合气体,得到表面形成有涂层的合金。综合考虑工艺成本、抗结焦和抗渗碳性能、以及使用寿命,涂层厚度优选是10~100μm。
与上述方法相对应,本发明还涉及由上述方法制得的涂层。
进一步地,本发明还涉及上述涂层在抗结焦和/或抗渗碳中的应用,特别是在烃类原料高温裂解生产乙烯中的应用。
本发明通过特定包埋渗工艺和高温碳化,能够在合金表面形成性能良好的涂层,该涂层在高温渗碳环境中性能稳定,能够持久、有效地阻隔合金基体中Fe、Ni元素与烃类物料接触,抑制催化结焦,保持炉管的长周期运行。此外,通过控制渗层厚度,可使得渗剂元素深入合金表层,在表面涂层因机械损伤等原因脱落后,能够实现涂层及时地自我修复。
具体实施方式
以下结合具体实施例对本发明作进一步详细说明,但不应将其理解为对本发明保护范围的限制。
实施例1
将HP40合金表面除油除锈后,与包埋渗渗剂(100目粉体)一起放入渗箱中,渗剂的成分为(以质量百分比计):硅粉25%,含铬50%的铬铁合金20%,氯化铵3%,氟化钠0.4%,氧化铈0.2%,余量为高温煅烧Al2O3粉。将密封后的渗箱放入马弗炉中,950℃保温3h。以10℃/min的速率降温至室温,取出渗箱,将合金用20%浓度的KOH水溶液浸泡后,用去离子水清洗,干燥。随后,将合金放入管式热处理炉中,以氢气80%和甲烷20%为混合气,持续通入热处理炉中。以15℃/min的升温速率加热到950℃,保温10h,保温结束后随炉冷却至室温,停止通气。
合金材料表面形成了均匀致密的涂层,经金相制样,采用扫描电镜检测,涂层厚度为20μm。
该涂层能有效地抑制合金高温环境下的渗碳和结焦,延长材料的使用寿命或清焦周期。在自制连续流动式乙烯裂解模拟装置中,以轻石脑油和去离子水(质量比8:1)为裂解原料,流量150 ml/min,裂解温度850℃。与相同尺寸(30 mm × 20 mm × 1.5 mm)的HP40无涂层试样相比较,经10次结焦清焦循环实验,涂层结焦抑制率仍达62.7%。
实施例2
将HK40合金表面除油除锈后,与包埋渗渗剂(200目粉体)一起放入渗箱中,渗剂的成分为(以质量百分比计):硅粉20%,铬粉20%,氯化铵3%,氟化钠0.4%,氧化铈0.2%,余量为高温煅烧Al2O3粉。将密封后的渗箱放入马弗炉中,1000℃保温2h。以10℃/min的速率降温至室温,取出渗箱,将合金用20%浓度KOH水溶液浸泡后,以去离子水清洗,干燥。随后,将合金放入管式热处理炉中,以氩气60%、氢气10%和甲醇30%为混合气,持续通入热处理炉中。以15℃/min的升温速率加热到950℃,保温10h,保温结束后随炉冷却至室温,停止通气。
合金材料表面形成了均匀致密的涂层,经金相制样,采用扫描电镜检测,涂层厚度为25μm。
同实施例1的测试方法进行抑制结焦评价,经10次结焦清焦循环实验,涂层结焦抑制率仍达65.4%以上。
以上实施例是本发明的优选实施方式。应当指出,对于本技术领域的普通技术人员而言,在不脱离本发明构思的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为在本发明的保护范围内。
Claims (10)
1.一种在合金表面制备涂层的方法,包含下列步骤:
(1)对合金表面进行除油除锈预处理;
(2)采用包埋渗工艺,用渗剂对合金材料进行处理;
以质量百分比计,所述渗剂的成分为:硅10~50%,铬粉或铬铁粉0~40%,氯化铵1~10%,氟化钠0.2~2%,氧化铈0.1~0.5%,余量为氧化铝;所述渗剂为50~500目的粉末;处理温度为700~1100℃,处理时间为1~10h;
(3)使用碱性溶液对处理后的合金材料表面进行清洗,然后水洗、干燥;
(4)将经过步骤(3)处理的合金材料置于热处理炉内,持续通入由含碳气体和调节气体组成的混合气体,在500~1200℃高温碳化,保温2~20h;
(5)降温冷却至100℃以下,停止通入混合气体。
2.根据权利要求1所述的方法,其特征在于,步骤(1)中,以质量百分比计,所述合金的成分为:Cr 10~50%,Mn 0~5%,Ni 20~60%,Si 0.2~3%,微量元素 0.01~6%,余量为Fe,所述微量元素包括Ti、Nb、W、Mo、Al、C及稀土元素中的一种或几种。
3.根据权利要求1或2所述的方法,其特征在于:所述合金是牌号为HK40、35Cr45Ni、HP40、Incoloy 800、或326L的合金。
4.根据权利要求1所述的方法,其特征在于:步骤(2)中,通过包埋渗工艺形成的渗层中,Si所占比例为10~60摩尔%,Cr所占比例为20~60摩尔%,余量为其它元素。
5.根据权利要求1所述的方法,其特征在于:步骤(3)中,使用的碱性溶液是浓度为10~50%的NaOH或KOH水溶液。
6.根据权利要求1所述的方法,其特征在于:步骤(4)中,所述含碳气体选自甲烷、乙烷、丙烷、甲醇、一氧化碳、二氧化碳中的一种或多种;所述调节气体选自氢气、氮气、氩气中的一种或几种。
7.根据权利要求1或6所述的方法,其特征在于:混合气体中,含碳气体的摩尔比例为10-60%,优选为20-40%。
8.一种合金表面涂层,它是经由权利要求1-7中任一项所述的方法制备而成。
9.权利要求8所述的合金表面涂层在抗结焦和/或抗渗碳中的应用。
10.根据权利要求9所述的应用,其特征在于:应用于烃类原料高温裂解生产乙烯。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710486145.0A CN107164722B (zh) | 2017-06-23 | 2017-06-23 | 一种合金表面涂层及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710486145.0A CN107164722B (zh) | 2017-06-23 | 2017-06-23 | 一种合金表面涂层及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107164722A true CN107164722A (zh) | 2017-09-15 |
CN107164722B CN107164722B (zh) | 2018-12-25 |
Family
ID=59820337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710486145.0A Active CN107164722B (zh) | 2017-06-23 | 2017-06-23 | 一种合金表面涂层及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107164722B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109576661A (zh) * | 2019-01-25 | 2019-04-05 | 西北工业大学 | Zr,Ti,Al多元改性硅化物渗层的两步法制备方法 |
CN114540749A (zh) * | 2020-11-24 | 2022-05-27 | 中国石油天然气股份有限公司 | 自清焦涂层及其制备方法与应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06184729A (ja) * | 1992-06-02 | 1994-07-05 | Kyokuto Chitsuka Kenkyusho:Kk | 鉄鋼材料へのチタンおよびクロムの複合炭化物被覆 |
CN102399568A (zh) * | 2010-09-16 | 2012-04-04 | 中国石油化工股份有限公司 | 一种减缓结焦和渗碳的急冷锅炉及其制造方法 |
CN104862639A (zh) * | 2015-05-29 | 2015-08-26 | 北方民族大学 | 一种耐高温耐热腐蚀抗磨损涂层的制备工艺及其渗剂 |
CN106011743A (zh) * | 2016-06-24 | 2016-10-12 | 华东理工大学 | 一种合金材料表面锰铬陶瓷涂层的制备方法 |
CN106756775A (zh) * | 2015-11-25 | 2017-05-31 | 华东理工大学 | 一种合金表面形成尖晶石涂层的制备方法 |
-
2017
- 2017-06-23 CN CN201710486145.0A patent/CN107164722B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06184729A (ja) * | 1992-06-02 | 1994-07-05 | Kyokuto Chitsuka Kenkyusho:Kk | 鉄鋼材料へのチタンおよびクロムの複合炭化物被覆 |
CN102399568A (zh) * | 2010-09-16 | 2012-04-04 | 中国石油化工股份有限公司 | 一种减缓结焦和渗碳的急冷锅炉及其制造方法 |
CN104862639A (zh) * | 2015-05-29 | 2015-08-26 | 北方民族大学 | 一种耐高温耐热腐蚀抗磨损涂层的制备工艺及其渗剂 |
CN106756775A (zh) * | 2015-11-25 | 2017-05-31 | 华东理工大学 | 一种合金表面形成尖晶石涂层的制备方法 |
CN106011743A (zh) * | 2016-06-24 | 2016-10-12 | 华东理工大学 | 一种合金材料表面锰铬陶瓷涂层的制备方法 |
Non-Patent Citations (1)
Title |
---|
谢飞等: "乙烯裂解炉管的渗碳与抗渗碳"", 《材料导报》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109576661A (zh) * | 2019-01-25 | 2019-04-05 | 西北工业大学 | Zr,Ti,Al多元改性硅化物渗层的两步法制备方法 |
CN114540749A (zh) * | 2020-11-24 | 2022-05-27 | 中国石油天然气股份有限公司 | 自清焦涂层及其制备方法与应用 |
CN114540749B (zh) * | 2020-11-24 | 2023-10-27 | 中国石油天然气股份有限公司 | 自清焦涂层及其制备方法与应用 |
Also Published As
Publication number | Publication date |
---|---|
CN107164722B (zh) | 2018-12-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101565808B (zh) | 一种处理高温合金炉管的方法 | |
CN106756775B (zh) | 一种合金表面形成尖晶石涂层的制备方法 | |
CN102807887B (zh) | 一种抑制烃类裂解炉管催化结焦的裂解炉管及其制造方法 | |
CN103788983B (zh) | 一种抗结焦的烃类裂解炉管及其制备方法 | |
CN106011743B (zh) | 一种合金材料表面锰铬陶瓷涂层的制备方法 | |
CN110004392B (zh) | 一种耐高温腐蚀耐磨损的非晶态热喷涂材料 | |
CN102719783A (zh) | 一种合金表面原位氧化反应形成保护膜的制备方法 | |
CN109534772B (zh) | 一种超导热瓷膜复合新材料及其制备方法 | |
CN107164722B (zh) | 一种合金表面涂层及其制备方法 | |
CN103993271B (zh) | 一种提高马氏体耐热钢耐液态金属腐蚀的方法 | |
CN103160827B (zh) | 一种余热锅炉受热面高温复合耐磨涂层及其制作方法 | |
EP3502313B1 (en) | Method for preparing an anti-coking crystalline material based on a stainless steel surface | |
NO327930B1 (no) | Borholdig pasta og anvendelse av denne, samt fremgangsmate for dannelse av et beskyttende belegg pa metallgjenstander | |
CN103014615B (zh) | 钢铁表面制备铝钼共渗合金涂层的方法 | |
CN107881431A (zh) | 一种抗结焦合金材料及其制备方法和一种抗结焦裂解炉管 | |
CN100351421C (zh) | Ni(Fe)-Al系金属间化合物涂层制备方法 | |
CN108611588B (zh) | 一种耐高温氧化和抗硫、氯腐蚀的合金涂层及其制备方法 | |
Brandl et al. | Prevention of metal dusting on Ni-based alloys by MCrAlY coatings | |
CN108950311B (zh) | 一种烟气换热管的防护涂层及其制备方法 | |
KR20190055659A (ko) | 팩 시멘테이션을 이용한 메탈시트 볼 밸브의 표면코팅 방법 및 동 방법으로 형성되는 코팅막을 갖는 메탈시트 볼 밸브 | |
JP5371376B2 (ja) | ステンレス鋼製の加工品の表面硬化方法及び該方法の実施のための溶融塩 | |
CN110863166B (zh) | 一种提高奥氏体不锈钢阀门抗应力腐蚀的方法 | |
CN111410560A (zh) | 一种高致密SiC涂层的硅化石墨制备方法 | |
CN107881393B (zh) | 一种抗结焦合金材料及其制备方法和一种抗结焦裂解炉管 | |
CN1312316C (zh) | 一种乙烯炉管表面的涂层制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20180809 Address after: 214536 Jiangsu 268 service New Energy Company, No. 268, South Jiangsu Road, Xinqiao Town, Jingjiang City, Taizhou. Applicant after: Jiangsu double field Amperex Technology Limited Address before: 214536 Jiangsu, Jiangsu, Taizhou, Jingjiang, Xinjiang town, four North pier, Jiangsu double Qin Minsheng company Applicant before: Jiangsu Shuangqin Minsheng Metallurigical and Chemical Equipment Manufacturing Co., Ltd. |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant |