会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Thermal ink jet printhead protective layers
    • 热敏喷墨打印头保护层
    • US5448273A
    • 1995-09-05
    • US80631
    • 1993-06-22
    • Igal E. KleinCathie J. BurkeRoberto E. ProanoRenato P. ApollonioRobert V. LorenzeDaniel O. Roll
    • Igal E. KleinCathie J. BurkeRoberto E. ProanoRenato P. ApollonioRobert V. LorenzeDaniel O. Roll
    • B41J2/14G01D15/18
    • B41J2/14129B41J2202/03Y10T428/12951
    • In a thermal ink jet printhead with a protective layer, the protective layer is made of a thin film material having a melting point not less than about 1000.degree. C. A deposition process for preparing the thin film material produces a thin film material having, at an operating temperature for the thermal ink jet printer, a thermal conductivity coefficient not less than about 10 W/m.K, a compressive yield strength not less than about 1400 MPa, and a compressive residual stress of not greater than about 1200 MPa. The protective layer is smooth, substantially free of pores and impervious to stress corrosion or hydrogen stress cracking at a hydrogen uptake rate of less than about 5 ppm. The protective layer may also contain an adhesion enhancing region between the protective layer and an underlying layer or an anodic region contiguous with an underlying thin film material of the protective layer. The adhesion enhancing region is a reaction product between an ambient gas and the thin film material of the protective layer and extends only to the grain boundaries of the protective layer. The contiguous anodic region is substantially free of pores, has a homogeneous composition, protects an underlying thin film material against corrosive species and hydrogen and is formed by anodization of the underlying thin film in an aqueous electrolytic process.
    • 在具有保护层的热喷墨打印头中,保护层由熔点不低于约1000℃的薄膜材料制成。用于制备薄膜材料的沉积工艺产生薄膜材料,其具有 用于热喷墨打印机的工作温度,不低于约10W / mK的导热系数,不低于约1400MPa的压缩屈服强度和不大于约1200MPa的压缩残余应力。 保护层是光滑的,基本上没有孔隙,并且在小于约5ppm的吸氢速率下不受应力腐蚀或氢应力开裂的影响。 保护层还可以在保护层和下层之间包含粘合增强区域,或者与保护层的下面的薄膜材料邻接的阳极区域。 附着增强区域是环境气体与保护层的薄膜材料之间的反应产物,仅延伸到保护层的晶界。 连续的阳极区域基本上没有孔隙,具有均匀的组成,保护下面的薄膜材料免受腐蚀物质和氢气的侵害,并通过在水性电解过程中阳极氧化底层薄膜形成。