FERRO Process Temperature Control Rings 850~1750℃ 陶瓷测温环产品介绍: | |||||||||||||||||||||||||||||||||
很多高温耐火产品在生产过程中需要精准有效地测量窑炉温度,但多数测量手段和工具在时间和空间上均受到限制。
Process Temperature Control Rings Take control of your firing process In the manufacture of ceramic products, few things are as critical as accurate control of the firing process. After all, the results have a direct effect on the quality - and the costs - of the final product. Optimal firing control requires both accurate measurement of the heat treatment - the temperature and its effect over time - together Most conventional temperature measurement techniques are limited both in time and in location. For example, the thermocouples |
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FERRO Process Temperature Control Rings 陶瓷测温环的型号及应用行业 | |||||||||||||||||||||||||||||||||
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FERRO Process Temperature Control Rings 测温环规格 | |||||||||||||||||||||||||||||||||
PTCR测温环尺寸: 外径:20mm, 内径:10mm, 厚度:7.0mm。 PTCR为可靠的高精度产品,大误差小于3℃。甚至可达1.5℃。 产品包装:15个/小纸盒、600个/大盒。 The multifunctional PTCR concept comprises • improved ceramic PTCR rings • improved, convenient packaging • the PTCR micrometer with numerical or digital read-out • a batch-specific temperature table PTCR: What it is The Process Temperature Control Ring, PTCR,is a highly accurate ceramic temperature indicator which records the true heat treatment received by the fired product. PTCR rings take account of both radiated and transferred heat, as well as the effects of temperature over time. It conveniently allows this recorded heat exposure to be expressed as a single number - ring temperature (RT) - which is practical and easy to work with. PTCR rings can be used in both batch and continuous tunnel kilns; they are used in a range of atmospheres*. Five different PTCRtypes are available - in heights of 3.5 and 7.0mm - covering a range from 850 to 1750°C(1562 to 3182°F). Ring types are identified by color coding and batch and type numberspressed into the ring. Originally PTCR has been developed for inhouse application in critical firing processes for advanced electronic ceramic components. Now, the PTCR brings the benefits of easy,accurate kiln temperature measurement to awide range of industries. PTCR: How it works When exposed to heat in the kiln, the PTCR ring contracts - and continues contracting as the top temperature is maintained over time. The degree of contraction is almost linear over the complete operating range of the PTCR,providing a practical measure of the accumulated heat to which the ring - and the fired products - have been subjected. The amount of contraction - the amount by which the ring diameter has shrunk - is measured with a numerical or digitalmicrometer. This measurement can be converted to 'ring temperature' for ease of comparison and correlation to the firing process. PTCR: Quality you can rely on PTCR is recognized for its accuracy and reliability, and its recently improved technology now offers an unsurpassed accuracy guarantee: a minimum variation of 3°RT. ** This reliability is based on a stringent manufacturing process. PTCR rings are made from a mix of high-grade materials. Their composition is fine-tuned through advanced Design Of Experiments- (DOE) techniques, and the production process itself is controlled by Statistical Process Control. In fact, the entire PTCR manufacturing facilities have been awarded the internationally recognized ISO 9001:2000 and ISO 14001 quality certification. |
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FERRO PTCR测温环工作原理及使用方法: | |||||||||||||||||||||||||||||||||
1、FERRO PTCR测温环具有公认的精确性和可靠性,测温环几乎可被放置在窑炉的任何位置,炉体内、推板或传输带上 ,在使用前,不必测量温度;
注意:为了使用时精确和方便FERRO测温环 每个温度表都是为该批测温环而特别制定的,所标的生产批号必须与温度 对照表上的保持一致。 PTCR in practice: accuracy and convenience Firing process optimization Using the heat treatment mapping, the firing process can then be optimized by offsetting heat sources or thermocouples as indicated by the variations in ring temperatures. As a rule of thumb, one degree of ring temperaturecorresponds to one degree Celsius. The exact relationship between ring temperature and The adjoining illustration shows two heat treatment mappings of the same 15m3 kiln. Firing process control By comparing the current ring temperatures against the defined standard, the number of degrees of ring temperature by which the firing process must be adjusted can be determined. Using several rings at critical locations in the kiln ensures that an even heat distribution is maintained. Quality control at lower cost |
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测温环测定窑炉温度分布图: | |||||||||||||||||||||||||||||||||
测温环被广泛应用于连续窑和非连续隧道窑、梭式窑、辊道窑、钟罩窑等等,推荐使用多位放置和多水平放置,这可使您对窑内热分部有个直接地了解。
FERRO PTCR测温环可应用在氧气、氮气、空气、真空和还原等不同烧成气氛中。 |
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窑炉应用FERRO测温环测量的优点: | |||||||||||||||||||||||||||||||||
1、FERRO校温环/测温环使用机动灵活,可简易方便测定炉内三维空间温度分布的任何角落。 2、FERRO校温环/测温环安放位置好贴近产品实际受热状态,精确测定烧制品 实际受热情况。 3、FERRO校温环/测温环一致性良好,可以保证产品烧成制度的良好重现性,从而提高成品的合格率。 4、使用FERRO校温环/测温环可以减少甚至不再需要通过对烧成品的几何形状,密度和多孔性测量或破坏性试验。 从而减少生产过程中的质量控制成本。 5、FERRO测温环陶瓷测温环为可靠的高精度产品,具有公认的精确性和可靠性,精确的温差达1.5—3℃。 Method of use Positioning Converting to ring temperature Establishing a standard ring temperature |
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用测温环改善窑炉烧成产品质量的案例: | |||||||||||||||||||||||||||||||||
1、测温环在电子陶瓷产品生产中的应用 | |||||||||||||||||||||||||||||||||
不论是电子陶瓷用粉体还是电容器、电阻器、电感器之类的电子陶瓷元器件,对电性能的要求都较高。在配方和生产工艺相对固定的情况下,烧制品的累积热效应是直接影响产品电性能的因素,而热效应主要是烧成温度、保温时间和烧成气氛的综合体现。
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2、利用测温环解决窑炉横向温差偏大的问题 | |||||||||||||||||||||||||||||||||
窑炉横向温差偏大,容易导致窑炉同一行出砖产生色差缺陷,这种色差常常呈逐渐过渡状,一般不易区分开来,窑炉越宽,这种缺陷越明显。其实对于温差问题的解决方法是很多的。而难题在于如何准确知道窑炉内不同位置的温差。试验证明在抛光砖生产中,应尽量控制窑炉烧成带横向温差≤5℃。
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3、测温环在箱式电炉中的应用 | |||||||||||||||||||||||||||||||||
箱式电炉广泛用于实验室和小件产品的生产,因其投资小,使用灵活而成为首选的烧成设备。由于电子陶瓷和现代精细陶瓷对烧成温度非常敏感,温度偏差3-5℃即可造成产品性能明显差异,所以保证箱式炉内温度的均匀性是十分必要的。实际使用中,因箱式炉发热元件的设置不同,往往是中间温度较均匀,四周温度较不稳定。
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4、测温环在辊道窑中的应用 | |||||||||||||||||||||||||||||||||
陶瓷制品在辊道窑里烧成,需要在特定的烧成制度下进行,合理的烧成制度是得到良好产品的根本保证。烧成制度包括温度制度、压力制度、气氛制度,其中温度制度为关键。辊道窑的温度监测主要是依靠沿窑长装在窑顶或窑侧的热电偶所反映的温度数据。
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5、测温环在立式窑烧结电子陶瓷中的应用 | |||||||||||||||||||||||||||||||||
立式窑以其操作简单,温度均匀,烧结的连续性等优点而广泛用于电子陶瓷的烧结。比如:瓷片电容、PTC陶瓷电阻器、氧化锌压敏电阻器以及PZT压电陶瓷等。这些产品烧结温度的准确性要求都较高,若同类产品在烧结过程中温差过大,不但会影响产品的一致性,而且容易导致整批产品的报废。
立式窑的热电偶探头一般布置在炉膛的外侧,其测出的温度不是产品烧结的实际温度,这就要求产品在烧结前不但要知道其理论烧结温度,更应了解炉膛内的实际温度与表头温度的差异,否则依理论温度调整过来的表头温度是难以烧出高质量的产品。此时采用校温环提前校对一下炉膛内的温度,不但可以减少物料的浪费,而且可以节省宝贵的试炉时间。
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6、测温环在磁性材料中的应用 | |||||||||||||||||||||||||||||||||
镍锌、锰锌钴、钕铁硼等磁性材料的生产和研发过程中,需要对新型材料生产工艺温度(预烧料温度)进行拟定烧成温度;对二次磁性材料产品烧结同样需要准确的窑炉温度,以便稳定磁性产品的电性能指标。窑炉一般是通过热电偶传递窑炉温度,但热电偶因不同的生产商、不同的窑炉、不同的规格等因素,在同一企业内也较难统一测温标准,容易出现研发部门测试的烧成温度与生产部门的实际控温不相符,给生产带来不便。
PTCR: a quality product from a quality source Worry-free firing control, day after day
All raw materials used in the powder mix from which the rings are manufactured undergo extensive laboratory testing. The powders are homogenized, and each individual batch is numbered and inspected once more, to guarantee both physical and pressingproperties. A unique batch identifier is pressed into each individual ring, allowing any ring to be traced back to its original powder batch, if necessary. As each batch of powder is released, the ring temperature conversion table is calculated - specifically for that batch.
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FERRO品牌测温环的由来: | |||||||||||||||||||||||||||||||||
1956-2000年:荷兰福禄公司生产之测温环品牌为PHILIPS(荷兰飞利浦) 2000-2003年:荷兰福禄公司生产之测温环品牌为dmcc和Degussa(德国德固萨公司) 2003年至今:荷兰福禄公司生产之测温环品牌为FERRO(美国) 现在销售产品FERRO测温环均系荷兰福禄公司原厂之产品 ,请用户放心使用,品牌所述为美国。 |
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测温环对照表校正曲线图下载: | |||||||||||||||||||||||||||||||||
注意:为了使用时精确和方便,每个温度表都是为该批环而特别制定的。为保证正确使用,请注意FERRO测温环上所标的生产批号必须与温度换算表上的保持一致。 Method of use Correct positioning is essential to allow accurate ring diameter reading in a single measurement. The special PTCR micrometers feature a positioning chuck that assists in placement of the ring, helping ensure that measurement is made correctly - across the middle digits of the ring number. |