防脱碳涂料对30CrMnSiA热处理保护的研究
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摘要
为了降低涂料成本,简化操作,以玻璃粉、滑石粉等为预原料,以虫胶为粘结剂,制备了一种用于30CrMnSiA钢材零件的热处理保护涂料,采用显微硬度测试及光学和扫描电镜观察等手段,研究涂料在热处理过程中对基体合金的保护作用。结果表明:该涂料不仅成本低廉、操作简单且具有优良的性能,在高温下能均匀分布在材料表面而不开裂,油淬后完全脱落,在930℃左右能有效减少材料表面的脱碳情况。材料表面全脱碳层消失,仅出现半脱碳层。脱碳层深度明显减少,最深距离由122.54μm减少至53.78μm,减少约1/2,具有较高应用价值。
In this paper,a kind of heat treatment protective coating for 30 CrMnSiA steel parts was prepared by using glass powders and talcum powders as raw materials,and shellac as binder. The protective effect of the coating on the base alloy during the heat treatment process was studied by the means of microhardness test,optical and scanning electron microscopy observation. Results showed that the coating was not only low-cost and simple-operation,but also had excellent performance. The coating could be evenly distributed on the surface of the material without cracking at high temperatures,completely shedding after oil quenching. In addition,the coating could effectively improve the decarburization of the material surface at about 930 ℃. The full decarburized layer of the material disappeared and only semi-decarburized layers appeared.The depth of decarburization layer reduced obviously,and the deepest distance decreased from 122.54 μm to 53.78 μm,about 1/2 of reduction,which presented the coating possessed a high application value.
In this paper,a kind of heat treatment protective coating for 30 CrMnSiA steel parts was prepared by using glass powders and talcum powders as raw materials,and shellac as binder. The protective effect of the coating on the base alloy during the heat treatment process was studied by the means of microhardness test,optical and scanning electron microscopy observation. Results showed that the coating was not only low-cost and simple-operation,but also had excellent performance. The coating could be evenly distributed on the surface of the material without cracking at high temperatures,completely shedding after oil quenching. In addition,the coating could effectively improve the decarburization of the material surface at about 930 ℃. The full decarburized layer of the material disappeared and only semi-decarburized layers appeared.The depth of decarburization layer reduced obviously,and the deepest distance decreased from 122.54 μm to 53.78 μm,about 1/2 of reduction,which presented the coating possessed a high application value.
引文
[1]石子源,王旭东.碳钢高温防氧化脱碳涂料[J].新技术新工艺,1997(2):36-37.
[2]周翔,杨鑫,张晋浩.镁铝尖晶石对钢液脱碳的影响[J].材料与冶金学报,2015,14(2):87-90.
[3]毛莹.高碳铬轴承在加热过程中氧化与脱碳特性研究[J].中国金属通报,2018(1):141.
[4]任凤章,柴芳芳,沈洪涛,等.GCr15在木炭非接触性保护下退火的氧化脱碳研究[J].轴承,2011(2):33-36.
[5]王宇飞,任凤章,黄胜操.轴承钢盘条在不同条件保护下退火时的氧化脱碳行为[J].机械工程材料,2015,39(12):22-24.
[6]孙永平.钢坯表面防脱碳自动喷涂设备及工艺应用[J].现代冶金,2017(6):34-36.
[7]梁文,张炼,吴金平.玻璃基高温防氧化涂料的研究[J].材料保护,2007,40(3):37-39.
[8]邹湘军.滚轮开裂原因分析及工艺改进[J].金属热处理,2001(4):39-40.
[9]邢旭腾.钢坯表面防氧化涂料及其耐高温性能的研究[D].唐山:华北理工大学,2015:1-57.
[10]小田島壽男,北山実,前田重義.耐火粉-Si O2-Al-合成雲母-コロイダルシリカ-粘結剤系酸化防止剤の特性[J].鐵と鋼:日本鐡鋼協會々誌,1983,69:1 645-1 651.
[11]王庆奎.技术交流报道[J].炼钢,1985(2):100.
[12]李虹燕,白力静,梁戈,等.防氧化脱碳涂料对钢铁材料热处理的保护研究[J].电镀与涂饰,2005,24(12):33-36.
[13]张国才,孙文明,敖进清,等.防止钢坯氧化用涂料的研究[J].钢铁钒钛,1996(1):22-27.
[14]曹安然.弹簧钢防高温氧化脱碳涂层的制备及性能研究[D].南京:南京航空航天大学,2010:1-69.
[15]谭昌瑶,梁逵,杨湄.一种新型高温热处理保护涂料[J].四川工业学院学报,2001,20(1):61-63.
[16]FANG Y,CUI P,DING Z,et al.Properties of a magnesium phosphate cement-based fire-retardant coating containing glass fiber or glass fiber powder[J].Construction and Building Materials,2018,162:553-560.
[17]黄松林,祖群,黄三喜,等.矿物原料对Si O2-Al2O3-MgO玻璃熔制的影响研究[J].玻璃钢/复合材料,2018(2):78-82.
[18]赵世民,祝艳,唐辉.虫胶的基本特性及应用[J].口腔护理用品工业,2005,32(3):50-53.
[19]GAO J,BAO Y,GAWNE D T.Microporosity and delamination mechanisms in thermally sprayed borosilicate glass coatings[J].Surface and Coatings Technology,2016,304:195-202.
[20]李召华,王春净,罗湘燕.30 Cr MnSiA钢的最终热处理工艺研究[J].新技术新工艺,2017(10):1-3.
[21]张杰,江社明,张启富,等.热处理过程中纯锌镀层的组织转变和表面氧化[J].钢铁研究学报,2014,26(8):42-46.
[22]李慧,邢建伟,张敬彤,等.几种常用的脱碳层深度测定方法[J].理化检验-物理分册,2015,51(1):37-39.
[23]张旭峰,张江玲,肖金福.加热工艺对重轨钢奥氏体晶粒尺寸与脱碳层深度的影响[J].轧钢,2013,30(4):27-31.
[24]杨国清,张登岳,钱增英.202热处理保护涂料[J].机械工人,1980(3):9-11.
[25]刘达淦.3号涂料保护热处理[J].宇航材料工艺,1993(5):48-51.
[2]周翔,杨鑫,张晋浩.镁铝尖晶石对钢液脱碳的影响[J].材料与冶金学报,2015,14(2):87-90.
[3]毛莹.高碳铬轴承在加热过程中氧化与脱碳特性研究[J].中国金属通报,2018(1):141.
[4]任凤章,柴芳芳,沈洪涛,等.GCr15在木炭非接触性保护下退火的氧化脱碳研究[J].轴承,2011(2):33-36.
[5]王宇飞,任凤章,黄胜操.轴承钢盘条在不同条件保护下退火时的氧化脱碳行为[J].机械工程材料,2015,39(12):22-24.
[6]孙永平.钢坯表面防脱碳自动喷涂设备及工艺应用[J].现代冶金,2017(6):34-36.
[7]梁文,张炼,吴金平.玻璃基高温防氧化涂料的研究[J].材料保护,2007,40(3):37-39.
[8]邹湘军.滚轮开裂原因分析及工艺改进[J].金属热处理,2001(4):39-40.
[9]邢旭腾.钢坯表面防氧化涂料及其耐高温性能的研究[D].唐山:华北理工大学,2015:1-57.
[10]小田島壽男,北山実,前田重義.耐火粉-Si O2-Al-合成雲母-コロイダルシリカ-粘結剤系酸化防止剤の特性[J].鐵と鋼:日本鐡鋼協會々誌,1983,69:1 645-1 651.
[11]王庆奎.技术交流报道[J].炼钢,1985(2):100.
[12]李虹燕,白力静,梁戈,等.防氧化脱碳涂料对钢铁材料热处理的保护研究[J].电镀与涂饰,2005,24(12):33-36.
[13]张国才,孙文明,敖进清,等.防止钢坯氧化用涂料的研究[J].钢铁钒钛,1996(1):22-27.
[14]曹安然.弹簧钢防高温氧化脱碳涂层的制备及性能研究[D].南京:南京航空航天大学,2010:1-69.
[15]谭昌瑶,梁逵,杨湄.一种新型高温热处理保护涂料[J].四川工业学院学报,2001,20(1):61-63.
[16]FANG Y,CUI P,DING Z,et al.Properties of a magnesium phosphate cement-based fire-retardant coating containing glass fiber or glass fiber powder[J].Construction and Building Materials,2018,162:553-560.
[17]黄松林,祖群,黄三喜,等.矿物原料对Si O2-Al2O3-MgO玻璃熔制的影响研究[J].玻璃钢/复合材料,2018(2):78-82.
[18]赵世民,祝艳,唐辉.虫胶的基本特性及应用[J].口腔护理用品工业,2005,32(3):50-53.
[19]GAO J,BAO Y,GAWNE D T.Microporosity and delamination mechanisms in thermally sprayed borosilicate glass coatings[J].Surface and Coatings Technology,2016,304:195-202.
[20]李召华,王春净,罗湘燕.30 Cr MnSiA钢的最终热处理工艺研究[J].新技术新工艺,2017(10):1-3.
[21]张杰,江社明,张启富,等.热处理过程中纯锌镀层的组织转变和表面氧化[J].钢铁研究学报,2014,26(8):42-46.
[22]李慧,邢建伟,张敬彤,等.几种常用的脱碳层深度测定方法[J].理化检验-物理分册,2015,51(1):37-39.
[23]张旭峰,张江玲,肖金福.加热工艺对重轨钢奥氏体晶粒尺寸与脱碳层深度的影响[J].轧钢,2013,30(4):27-31.
[24]杨国清,张登岳,钱增英.202热处理保护涂料[J].机械工人,1980(3):9-11.
[25]刘达淦.3号涂料保护热处理[J].宇航材料工艺,1993(5):48-51.