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technical article
Material of wear-resistant thermocouple and comparison of various materials
2012-1-25 17:57:35


的材质有下列几种 The materials of wear-resistant thermocouples are as follows


1. Iron-aluminum-porcelain protective tube material: iron-based aluminum containing A12O3 powder is cleverly added to produce iron-aluminum-ceramic (TLC) with special gold, and iron-aluminum-porcelain alloy is made into thermocouple (resistance) protection tube, which becomes The most critical part of iron-aluminum porcelain thermocouple (resistance)

-Iron aluminum porcelain protection tube. According to the working temperature, wear conditions, media types, pressure and other conditions, different series of iron-aluminum-ceramic protection tubes are made. The existing series: TLC, TLC1, TLC2, TLC3, TLC4 and TLC5.

2. 3YC52, GH303 and K13200 heat-resistant and wear-resistant alloys: Special heat-resistant and wear-resistant alloy materials are used as temperature-measuring outer protection tubes, and the armored core is built, which not only has high corrosion resistance to particle erosion, but also can At high temperature

It protects the inner core body under the conditions. It adopts flange or thread connection form, which can measure temperature between 0∽1200 ℃ for a long time. It is an ideal temperature sensor for high temperature and wear-resistant environment in metallurgical industry.


3. Special wear resistance for SiC hot blast stove: adopt new silicon carbide metal ceramic protection tube, high temperature can reach 1300 ℃, inner core is S or B index high temperature armored core, which is specially suitable for temperature measurement in hot blast stove.

Fourth, SiC cermet wear resistance: Recrystallized silicon carbide cermet protection tube, high temperature up to 1300 ℃, built-in K index or S indexed armored core, specially suitable for cement kiln tail, circulating vulcanized bed and other high temperature strength Temperature measurement under wear conditions.

各种材料的比较 Comparison of various materials for wear-resistant thermocouples


1. Cermet wear resistance: It adopts recrystallized silicon carbide cermet protection tube, high temperature can reach 1300 ℃, and it is equipped with K index or S index armoured core, which is specially suitable for high temperature and high temperature resistance of cement kiln tail and circulating vulcanized bed. Temperature measurement in grinding conditions.


Material composition: SiC


Operating temperature: 0 ~ 1300 ℃


2. Special wear resistance for hot blast stove: Adopt new type silicon carbide metal ceramic protection tube, high temperature can reach 1300 ℃, the inner core is S index or B index high temperature armored core, specially suitable for temperature measurement in hot blast stove.


Material composition: SiC

Operating temperature: 0 ~ 1300 ℃


3. High-temperature alloy wear resistance 1: Special heat-resistant and wear-resistant alloy material is used as the temperature measuring outer protection tube and wear-resistant head, and the armor core is built in, which can have high corrosion resistance to scouring of fly ash particles. , And can be used for the inner core under high temperature conditions

The body plays a good protective role. Adopting flange or screw connection, it can measure temperature between 0∽1200 ℃ for a long time. It is a very ideal temperature sensor for metallurgy industry in high temperature and wear-resistant environment.


Material: K1320 heat-resistant and wear-resistant alloy


Temperature: 0 ~ 1200 ℃


4. High-temperature alloy wear resistance 2: Special heat-resistant and wear-resistant alloy materials are used as temperature-protection outer protection tubes, and the armor core is built in. It has high corrosion resistance to particle erosion, and can resist high-temperature conditions. The inner core plays a good role

Protective effects. It adopts flange or thread connection form, which can measure temperature between 0∽1200 ℃ for a long time. It is an ideal temperature sensor for high temperature and wear-resistant environment in metallurgical industry.


Material: 3YC52 or GH3030 heat-resistant and wear-resistant alloy


Temperature: 0 ~ 1200 ℃


5, iron aluminum porcelain protection tube


The iron base contains aluminum and skillfully adds A12O3 powder to obtain iron-aluminum-ceramic (TLC) with special gold. The iron-aluminum-ceramic alloy is made into a thermocouple (resistance) protection tube, and it becomes the most ferro-aluminum porcelain thermocouple (resistance) The key part-iron aluminum porcelain protection tube.

根据工作温度、磨损情况、介质种类、压力等式况,制成不同系列的铁铝瓷保护管,现有系列:TLC、TLC1、TLC2、TLC3、TLC4及TLC5六大系列。 Wear-resistant thermocouples are made into different series of iron-aluminum-ceramic protection tubes according to the working temperature, wear conditions, media types, pressure and other conditions. The existing series: TLC, TLC1, TLC2, TLC3, TLC4 and TLC5 six series.

TLC type: resistant to hydrochloric acid, nitric acid, sulfuric acid, sodium hydroxide, potassium hydroxide solution. The working temperature is divided into 350 ° C and 750 ° C.


TLC1 type: oxidation resistance, sulfuration resistance, zinc vapor corrosion resistance, high abrasion resistance, good thermal shock resistance, working temperature 1100 ° C. After practical use, the life of the zinc concentrate boiling furnace is 4 months, and the pyrite boiling furnace

The service life is 12 months. The service life of the boiler and circulating fluidized bed boiler furnace is 6 months, and the service life of the ball mill and fan mill is 6-8 months.

TLC2 type: working temperature 1250 ° C, wear resistance is lower than TLC1 type, compared with ceramic tube thermal shock resistance, high temperature heat resistance, working pressure (16MPa and other technical indicators are far ahead, especially suitable for 1250 ° C minutes Degree S heat

Galvanic protection tube.


TLC3 type: Improved from TLC2 type. In addition to the characteristics of TLC2 type, it has a special improvement in wear resistance, which is much higher than TLC1 type. Under the same conditions, the life can be doubled. Operating temperature is 1300 ° C.


TLC4 type: Inevitable succession from TLC1 type. In addition to the characteristics of TLC1 type, it has a special improvement in wear resistance, which is much higher than TLC1 type. Under the same working conditions, it can increase the life by three times and the working temperature. 1100 ° C.

After practical use, the life of the protective tube for the temperature measurement of the ball mill inlet and outlet can reach 36 months.