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    • 6. 发明申请
    • IN-LINE MOISTURE-CONTENT MEASUREMENT OF CERAMIC MATERIALS IN CERAMIC ARTICLE MANUFACTURING
    • 陶瓷制品中陶瓷材料的在线水分含量测量
    • US20100300183A1
    • 2010-12-02
    • US12471530
    • 2009-05-26
    • David DasherRobert John LockerJames Monroe Marlowe
    • David DasherRobert John LockerJames Monroe Marlowe
    • G01N5/02
    • G01N35/00B28B3/20B28B17/0081
    • In-line systems for and methods of measuring the moisture content of ceramic material within an extrusion system used to form ceramic articles are disclosed. One method includes arranging, relative to the extrusion system, at least one radio-frequency (RF) sensor system having an RF antenna, and generating through the RF antenna an RF field that resides substantially entirely within the ceramic material. The method also includes, in response to the RF field interacting with the ceramic material, generating in the RF sensor system a signal representative of a raw moisture-content measurement of the ceramic material. The method also includes generating calibration data by performing RF moisture-content measurements on samples of the ceramic material having different known moisture contents, and establishing a calibrated moisture-content measurement using the raw moisture-content signal and the calibration data. Both contact and non-contact systems and measurement methods are described.
    • 公开了用于测量用于形成陶瓷制品的挤出系统内的陶瓷材料的含水量的在线系统和方法。 一种方法包括相对于挤出系统布置至少一个具有RF天线的射频(RF)传感器系统,并且通过RF天线产生基本上完全驻留在陶瓷材料内的RF场。 该方法还包括响应于与陶瓷材料相互作用的RF场,在RF传感器系统中产生代表陶瓷材料的原始含水量测量的信号。 该方法还包括通过对具有不同已知水分含量的陶瓷材料的样品进行RF含水量测量并使用原始水分含量信号和校准数据建立校准的含水量测量来产生校准数据。 描述接触和非接触系统和测量方法。
    • 8. 发明申请
    • DUAL LOOP CONTROL OF CERAMIC PRECURSOR EXTRUSION BATCH
    • 陶瓷前驱物料双重控制
    • US20120226375A1
    • 2012-09-06
    • US13126342
    • 2009-10-30
    • Dennis M. BrownMaryam KhanbaghiRobert John LockerWenbin QiuKenneth Charles SariegoConor James Walsh
    • Dennis M. BrownMaryam KhanbaghiRobert John LockerWenbin QiuKenneth Charles SariegoConor James Walsh
    • G05B15/02
    • B28B3/201B28B3/269
    • A control strategy for producing high quality extrudates, including the steps of monitoring the temperature of a ceramic precursor batch by measuring the temperature of the batch material either directly or indirectly by measuring the temperature of a component of the extruder proximate to the die and transmitting the temperature data to an extrusion control system which comprises a master controller (106), at least one slave controller (110) and an optional supervisory controller. The supervisory controller determines batch temperature setpoint (102) in order to achieve the desired temperatures for extruding a certain type of batch material based on real time temperature inputs and stored parameters such as batch composition, process throughput, extruder cooling capacity, and the like. The master controller (106) receives batch temperature setpoint from the supervisory controller, and monitors batch temperature and in turn regulates at least one slave controller (110) which controls the flow of coolant (112) to portions of an extruder (114) in contact with the batch material.
    • 用于生产高质量挤出物的控制策略,包括以下步骤:通过直接或间接测量配料材料的温度来监测陶瓷前体批料的温度,方法是通过测量靠近模头的挤出机部件的温度,并传送 温度数据输出到挤出控制系统,其包括主控制器(106),至少一个从控制器(110)和可选的监控控制器。 监控控制器确定批量温度设定点(102),以实现基于实时温度输入和存储参数(例如批量组成,处理量,挤出机冷却能力等)挤出某种类型的批料的期望温度。 主控制器(106)从监控控制器接收批次温度设定值,并且监视批次温度,并且进而调节至少一个从属控制器(110),其控制冷却剂(112)的流动到与之接触的挤出机(114)的部分 与批量材料。