CN100387775C - 耐磨型造纸涂布刮刀 - Google Patents

耐磨型造纸涂布刮刀 Download PDF

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CN100387775C
CN100387775C CNB2006100436567A CN200610043656A CN100387775C CN 100387775 C CN100387775 C CN 100387775C CN B2006100436567 A CNB2006100436567 A CN B2006100436567A CN 200610043656 A CN200610043656 A CN 200610043656A CN 100387775 C CN100387775 C CN 100387775C
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coating
scraper
wearable
layer
steel
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CN1834343A (zh
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孙宏飞
王灿明
宋强
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Abstract

本申请公开了一种耐磨型造纸涂布刮刀,它包括一个钢刮刀基体,其特征是,在钢刮刀基体表面喷涂一层合金涂层作为过渡层,在合金涂层表面再喷涂一层金属间化合物/精细陶瓷复合材料作为工作层,一起形成本申请涂布刮刀的三层体系结构,涂层硬度控制在HRC50~65之间。该刮刀不仅耐磨,而且生产成本低,加工简单,使用寿命长。

Description

耐磨型造纸涂布刮刀
技术领域
本申请涉及造纸涂布刮刀,尤其是耐磨型造纸涂布刮刀。
背景技术
涂布刮刀是生产高质量印刷纸过程中的一个关键部件,其质量好坏直接影响产品质量及生产效率。传统的涂布刮刀是经过氧化发兰表面处理的弹簧钢刀片,但这种钢片刮刀在使用过程中由于受到诸多因素的影响,如刮刀加载、涂布机速度、涂布量、涂料固含量、颜料类型以及原纸的质量等等,磨损快,寿命短,需要频繁换刀,生产率低。
为提高涂布刮刀的耐磨性,目前有采用陶瓷涂布刮刀替代钢刮刀的,它是在经过预处理的钢片刮刀表面涂覆一层金属氧化物,并进行精密磨削加工。如中国专利公开号200420041632.4公开了一种新型造纸涂布陶瓷刮刀,它是在钢制造纸涂布刮刀的表面涂覆陶瓷材料,所涂覆的陶瓷材料多用氧化物或碳化物陶瓷。这种陶瓷刮刀的磨损率非常低,寿命长。用于涂布生产时,可提高涂布质量、纸张表面性能和印刷特性以及纸页光泽度,但也存在着不足:首先是生产成本较高,陶瓷材料熔点较高,在薄钢带基体上喷涂和磨削加工困难,其次陶瓷涂层和刮刀基体力学性能不匹配,在使用过程中涂层易局部脱落,降低刮刀使用寿命。
发明内容
本申请的目的是克服现有技术中的不足,提供一种不仅耐磨,而且生产成本低,加工简单,使用寿命长的耐磨型造纸涂布刮刀。
为实现上述目的,本申请的涂布刮刀结构是:在钢刮刀基体表面喷涂一层合金涂层作为过渡层,在合金涂层表面再喷涂一层金属间化合物/精细陶瓷复合材料作为工作层,一起形成本申请涂布刮刀的三层体系结构。涂层硬度控制在HRC50~65之间。
本申请的优点是:1、由于选用的涂层材料为金属间化合物/精细陶瓷复合材料,喷涂后涂层的韧性要优于单纯的陶瓷涂层,并且在外侧涂层和基体金属之间采用合金涂层过渡,进一步提高了涂层和基体的结合强度和刮刀的韧性,使涂层在使用过程中不易崩落,给磨削加工带来了很大的便利性。
2、由于选用易于喷涂的合金涂层作为过渡层,使喷涂金属间化合物/精细陶瓷的工艺性得到改善,在喷涂过程中避免因力学性能的不匹配而导致的涂层脱落问题。
3、本申请通过调整金属间化合物和精细陶瓷的成分配比,可以改变涂层的硬度,使涂层硬度在HRC50~65之间变化。在兼顾耐磨性的前提下,合理调整涂层硬度,提高涂布质量,改善刮刀的涂布性能
附图说明
图1是本申请涂布刮刀结构示意图。
图中:1--NiAl/Al2O3工作层,2--NiCr合金材料过渡层,3--钢刮刀基体。
具体实施方式
下面以在钢刮刀上获得NiCr合金-NiAl金属间化合物/Al2O3陶瓷复合涂层为例,对本申请的实施过程进行描述。
1、将钢刮刀基体3表面清洗、喷砂形成活性金属表面,喷砂沙粒粒度为25~35目,喷砂气流压力为0.5~0.6MPa,喷砂距离,10~15mm,喷砂后表面除尘。
2、在活性金属表面等离子喷涂NiCr合金涂层作为过渡层2;喷涂距离150~200mm,电流450A,氩气流量为1200L/h,氮气流量为1000L/h,涂层厚度0.05mm。
3、在NiCr合金涂层表面再等离子喷涂NiAl/Al2O3复合材料粉末作为工作层1;喷涂距离150~200mm,电流500A,氩气流量为1500L/h,氮气流量为1000L/h,喷涂厚度0.15~0.2mm,喷涂过程中工件温度控制在200℃以下。
4、采用聚四氟乙烯封孔剂对涂层进行封孔;
5、在专用刮刀磨床上开刃,磨表面。

Claims (1)

1.一种耐磨型造纸涂布刮刀,它包括一个钢刮刀基体,其特征是,在钢刮刀基体表面喷涂一层Ni-Cr合金涂层作为过渡层,在Ni-Cr合金涂层表面再喷涂一层NiAl/Al2O3复合材料作为工作层,一起形成本申请涂布刮刀的三层体系结构,涂层硬度控制在HRC50~65之间。
CNB2006100436567A 2006-04-13 2006-04-13 耐磨型造纸涂布刮刀 Expired - Fee Related CN100387775C (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502007001483D1 (de) * 2006-10-16 2009-10-22 Heinz Bartelmuss Siebleiste für Papiererzeugungsanlagen
CN101698983B (zh) * 2009-10-16 2012-02-08 彭俊超 玄武岩刮刀的制造方法
CN102059594B (zh) * 2010-06-28 2013-04-10 山东科技大学 涂布刮刀陶瓷涂层的精密磨削工装夹具、磨削方法及制品
EP3165367A1 (en) * 2015-11-04 2017-05-10 BTG Eclépens S.A. Doctor blade, inking arrangement and use of doctor blade in flexographic printing
EP3225736A1 (en) 2016-03-31 2017-10-04 BTG Eclépens S.A. Masked coating blade
CN108532352B (zh) * 2018-03-26 2024-03-29 赣州恩创科技有限公司 一种起皱刀及其制备方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719519A (en) * 1965-08-06 1973-03-06 G Perugini Process of forming protective coatings on metallic surfaces by spraying a combination of powders of a metal alloy,chromium and a ceramic oxide
GB2117415A (en) * 1982-03-26 1983-10-12 Toyo Engineering Corp Process for coating a heat- resistant alloy base
JPS602659A (ja) * 1983-06-20 1985-01-08 Toyota Motor Corp 高温用溶射部材
JPH0364595A (ja) * 1989-07-31 1991-03-19 Nomura Techno Res Kk 塗工用ブレードの製造方法
DE4417384C1 (de) * 1994-05-18 1995-01-12 Hans Leistner Gmbh Suedd Metal Beschichtung für Flugkörper, insbesondere für die Vorderkante des Höhenleitwerkes von Flugzeugen und Verfahren zum Aufbringen der Beschichtung
US5728434A (en) * 1995-08-08 1998-03-17 Pacific/Hoe Saw And Knife Company Method of applying a wear-resistant coating on a thin, metallic strip-shaped carrier
US5778785A (en) * 1995-10-26 1998-07-14 Heidelberger Druckmaschinen Ag Zonal ink fountain blade for a rotary printing press
JP3064595B2 (ja) * 1991-04-26 2000-07-12 住友化学工業株式会社 ポジ型レジスト組成物
US6607789B1 (en) * 2001-04-26 2003-08-19 General Electric Company Plasma sprayed thermal bond coat system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719519A (en) * 1965-08-06 1973-03-06 G Perugini Process of forming protective coatings on metallic surfaces by spraying a combination of powders of a metal alloy,chromium and a ceramic oxide
GB2117415A (en) * 1982-03-26 1983-10-12 Toyo Engineering Corp Process for coating a heat- resistant alloy base
JPS602659A (ja) * 1983-06-20 1985-01-08 Toyota Motor Corp 高温用溶射部材
JPH0364595A (ja) * 1989-07-31 1991-03-19 Nomura Techno Res Kk 塗工用ブレードの製造方法
JP3064595B2 (ja) * 1991-04-26 2000-07-12 住友化学工業株式会社 ポジ型レジスト組成物
DE4417384C1 (de) * 1994-05-18 1995-01-12 Hans Leistner Gmbh Suedd Metal Beschichtung für Flugkörper, insbesondere für die Vorderkante des Höhenleitwerkes von Flugzeugen und Verfahren zum Aufbringen der Beschichtung
US5728434A (en) * 1995-08-08 1998-03-17 Pacific/Hoe Saw And Knife Company Method of applying a wear-resistant coating on a thin, metallic strip-shaped carrier
US5778785A (en) * 1995-10-26 1998-07-14 Heidelberger Druckmaschinen Ag Zonal ink fountain blade for a rotary printing press
US6607789B1 (en) * 2001-04-26 2003-08-19 General Electric Company Plasma sprayed thermal bond coat system

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