PTCR Process Temperature Control Rings

From 560 °C (1040 °F) up to 1750 °C (3182 °F)With this data sheet we provide a general overview about PTCR. For further technical information, useful hintsand application advice for the use of Process Temperature Control Rings PTCR please refer to our PTCRManual “Technique & Application”.


Take control of your firing process

The accurate control of the firing/sintering process is ofhighest importance. After all, the results have a direct effect onthe quality and the costs of the final product.Optimal process control requires both, accurate measurementof the quantity of heat and the ability to control thetemperature and its uniform distribution throughout thekiln/furnace. Efficient process temperature measurement is akey to high product quality.


Value Statement

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.

Properties

PTCR rings can be used in both batch and continuous tunnel kilns; they are used in a range of atmospheres. 


 

in heights of 3.5 and 7.0mm, 

covering a range from 560 to 1750°C.

 Ring types are identified by color coding and batch and type numbers pressed into the ring.


Benefits at a glance:

Easy, accurate kiln temperature measurement to a wide range of industriesAn unsurpassed accuracy guarantee: a minimum variation of 3°RTOptimized firing process by offsetting heat sources or thermocouples thanks to the heat treatment mapping.Monitor the firing process and to detect these deviations as they gradually ariseImprovement of product qualityReduction of inspection time and costs

 

PTCR rings are made from a mix of high-grade materials. Their composition is fine-tuned through advanced Design Of Experiments- (DOE), 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.



FERRO PTCR測溫環工作原理及使用方法：

1、FERRO PTCR測溫環具有公認的準確性和可靠性，測溫環幾乎可被放置在窯爐的任何位置，爐體內、推板或傳輸帶上 ，在使用前,不必測量溫度；

2、FERRO PTCR陶瓷測溫環的工作原理是根據其在工作溫度范圍內的線性收縮，從而給出測溫環和燒成品的實際累計熱量，對照換算表得出測試溫度，燒制結束后，將測溫環取走并做記號；

3、FERRO PTCR陶瓷測溫環在窯爐中受熱時，它就收縮，并在溫度隨保溫時間延長而繼續收縮。 在其使用溫度范圍內，收縮率是線性的，這為FERRO陶瓷測溫環和被燒制的產品所受到的加熱量提供了一種實用的測量方法；收縮量(環直徑的減少)可用數字 千分尺測量 ，使用的手持數字千分尺記錄每一片測溫環的直徑,準確 到0.01mm；

4、參照包裝上所附的 環外徑與溫度對照表、溫度校正曲線圖(隨產品提供)，所測出的測溫環直徑可轉換成 等效溫度。


測溫環特性：
   很多高溫耐火產品在生產過程中需要地測量窯爐溫度，但多數測量手段和工具在時間和空間上均受到限制。


   例如：熱電偶并不能測量產品本身的溫度，而是產品燒制時的環境溫度。熱電偶記錄在頂端獲得的溫度，只是空間和時間的一點， 

一個熱電偶無法決定加熱過程；一只熱電偶是無法提供窯爐在不同方位加熱是否均勻的信息，它只能測輻射熱，而不涉及來自窯爐具的傳導熱。


   FERRO 測溫環是一種高精密度的陶瓷溫度指示器，它忠實記錄了燒制過程中制品所經歷的熱過程。 
   FERRO 測溫環不僅可以測出輻射熱與放射熱，還考慮了溫度隨時間推移所產生的影響。 
   FERRO 測溫環能方便地把受熱過程以一個簡單的數字來表示--環溫度(RT)，便于應用在實際工作中。