HNWL tungsten rhenium thermocouple is a thermocouple with superior high temperature , long-term use at 2000 degrees measurement occasions , the measurement temperature up to 2800 degrees, the highest temperature thermocouple to measure the product 's products , tungsten rhenium thermocouples very high thermal stability , with a special coat protective tube can also have long-term oxidation at 1600 degrees occasions substance use , can replace the platinum-rhodium thermocouple as metallurgy , building materials , aerospace, nuclear industry, the temperature of the measurement products.

HNWL Tungsten Rhenium Thermocouples Use :

Current measuring a temperature above 1600 ℃ , the use of non- contact method , however, the method of error is large , such as the contact law can accurately measure the real temperature . In the high-temperature thermocouples , precious metal thermocouples are expensive and the maximum temperature only in 1800 ℃ below, while tungsten rhenium thermocouple temperature limit is not only high, but good stability, therefore , tungsten rhenium thermocouples in metallurgy , building materials, aerospace , aviation and nuclear industries have been widely used . Rich resources of tungsten , tungsten- rhenium thermocouples cheap, can be partially substituted precious metal thermocouples , it is the high-temperature test promising field of temperature materials . Easily oxidized tungsten- rhenium thermocouples , suitable for hydrogen in an inert or dry use , or dense protective tube isolated in order to use it with oxygen . Carbon-containing atmosphere can not be used ( as in the use of hydrocarbon-containing atmosphere , the temperature exceeds 1000 ℃ i.e. by corrosion) . Tungsten or tungsten- rhenium in a carbonaceous atmosphere is easy to form a stable carbide , that reduce the sensitivity and cause brittle fracture, in the case of the presence of hydrogen , is accelerated carbonation .

HNWL Tungsten Rhenium Thermocouples Type Description :

HNWL tungsten rhenium thermocouples divided into three categories , one category is used in fine ceramic protection tube , the other is pure molybdenum protection tube, then a class is a tungsten protective tube . Ceramic tube specifications: diameter Ф8, Ф10, Ф12, Ф14, Ф16, length 300 ~ 1100mm, such thermocouples work atmosphere free from the restrictions in any atmosphere, long-term use , temperature range is 0 ~ 1800 ℃ the ; molybdenum and tungsten tube tube specifications: diameter Ф6, Ф8, Ф10mm, length 500 ~ 700mm, this thermocouple only in a vacuum , reducing or inert gas environment and long-term work , molybdenum tube preferably in 1800 ℃ long-term use at temperatures below , short-term use temperatures up to 2000 ℃; as tungsten tube is able to work at 2100 ℃ long-term , it is difficult to process resulting in the price is very expensive.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn
 

Oxidation of tungsten rhenium thermocouples used to solve the physical structure of tungsten rhenium thermocouple temperature oxidation problems . Which is characterized by high temperature oxidation. In oxidation, reduction , or alternating between the two atmospheres , and the price is cheap, only platinum and rhodium 1/ 2 to 1/ 4 . Thus, in 1996 a national new product certification, and obtained national patent.
The products are mainly used in metallurgy , chemical industry, refractory furnace and coal gasification or sulfur recovery unit for temperature measurement , the main technical indicators :
Model No indexing ASTM

Indexing Tolerance Measuring range (℃) Applicable atmosphere

WR □ W-134 □ WRe3-WRe25
(W3) D ± 1.0% t 0 ~ 1700

Oxidation, reduction , or both alternately

WR □ W-13525 WRe5-WRe26
(W5) C
WR □ W-13530

Varieties and specifications

Type protective tube

Structure Diameter (mm) Material

WR W3 W-134 □ Single Tube 8 ~ 16 corundum
WR W3 W-13525 Double

Composite pipe materialized

Structure 16 ( inside ) × 25 ( outside ) corundum

WR W3 W-13525 12 ( inside ) × 25 ( outside ) corundum ( internal )
+ SiC ( outside )

WR W3 W-13530 16 ( inside ) × 30 ( outside ) corundum ( internal )
+ SiC ( outside )

WR W3 W-13530 16 ( inside ) × 30 ( outside ) corundum ( internal ) +

Cermet ( outside )

● Protection tube diameter and length specification table (mm)

Φ16 ( single tube ) Φ20

Length L is set deep l length L is set deep l

300 150 400 250
350 200 450 300
400 250 550 400
450 300 650 500
550 400 900 750
650 500 1150 1000
900 750 1650 1500
1150 1000 2150 2000

Note : Metal ceramic tube up to 500 l .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

Tungsten- rhenium thermocouples is high temperature thermocouples. It has the potential of a linear relationship between temperature , thermal stability , reliable, cheap, etc. . And display instrument for direct measurement of liquids , steam and gases such as temperature. It can partially substitute platinum-rhodium thermocouple as high metallurgical industry , high-temperature electronic thermoelectric systems and space vehicle structural engineering , ultra-high temperature nuclear reactors measurement tools .

Tungsten- rhenium thermocouples for temperature dependence of thermopower meet ZBN05003-88 indexing table , equivalent ASTME696-84 standards. In a vacuum , reducing , inert atmosphere , at 0 ~ 2300 ℃ range. The use of special protective tube tungsten rhenium even can at 1600 ℃ under oxidizing atmosphere, long-term use , its price is lower than the platinum- rhodium thermocouple .

Tungsten- rhenium thermocouples is 1931 by Goedecke ( Ge virtues g ) first developed out at 60 to 70 years to develop the most successful refractory metal thermocouples. Tungsten- rhenium thermocouple is characterized by: a high melting point hot wire (3300 ℃), vapor pressure, easily oxidized ; in a non- oxidizing atmosphere, good chemical stability. Emf , high sensitivity , the most important is cheap. Tungsten- rhenium thermocouples is 60 years developed a high temperature thermocouple, a W / (W-26Re), (W-3Re) / (W-25Re), (W-5Re) / (W-26Re) and ( W-5Re) / (W-20Re) and so on. Long-term use temperature of 2000 ~ 2400 ℃, short-term use up to 3000 ℃. In the low-temperature thermocouples , (Au-2.1Co) / Cu thermocouple, the 10K or more thermoelectric power greater than 10μV / K; gold contains trace amounts ( about 0.07 atomic percent ) alloy of iron and nickel-chromium alloy composition thermocouple, at liquid helium temperature (4K) thermoelectric power greater than 10μV / K, all the better . (Pt-0.1Mo) / (Pt-5Mo), (Pt-1Mo) / (Pt-5Mo) and tungsten , and 0.5 to 1 ( atomic% ) alloy of osmium and rhenium tungsten alloy thermocouples in nuclear irradiation conditions. In addition to metallic materials, graphite and other non-metallic materials, refractory compounds can also be used as high temperature thermocouples. The advantage of such materials are high melting point , high temperature stability, high thermal potential and thermoelectric power , etc. ; drawback is brittle materials , graphite is easy to absorb moisture and changes in thermal resistance , poor reproducibility , but also in research and development into . Such thermocouples with carbon / graphite , graphite / carbide , carbide / carbide .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

1, Tungsten- rhenium thermocouples metallurgical industry , powder metallurgy applications

metallurgy products usually in reducing atmosphere such as hydrogen production , the working temperature 1000 ~ 1800 ℃. Just using sintered corundum tube or pipe , materialized oxidation of tungsten rhenium thermocouple powder metallurgy plant in Xiangtan and other applications for many years.

2, Tungsten- rhenium thermocouples VN , manganese nitrogen, boron carbide and chromium -nitrogen alloy Si3N4 powder production application

currently about VN , nitrogen alloy chromium , manganese alloy production and nitrogen Si3N4 powder production process control, more mining materialized oxidation of tungsten rhenium thermocouples, 2003 in the amount of 500 above , access to users.

3, Tungsten- rhenium thermocouples nonferrous metallurgy application
application
in lead smelting process, in order to lead slag can be well separated , often using electric front bed of new technology, the sensor must be exposed to high temperatures , corrosive media. Testing environment is extremely harsh , resulting in a very short life platinum-rhodium thermocouple ( only two weeks or so ) , materialized oxidation of tungsten rhenium thermocouples can not only replace expensive platinum-rhodium thermocouple, but life is doubled.

4, Tungsten- rhenium thermocouples materialized oxidation of tungsten rhenium thermocouples application < / span>

in Chemical Plant pyrolysis furnace using tungsten- rhenium thermocouples replace platinum and rhodium even, at 1400 ℃ under a reducing atmosphere , the use of composite alumina tube to get good results.

5, Tungsten- rhenium thermocouples 1800 ℃ -2000 ℃ high temperature application

At temperatures above 1800 ℃ under the conditions currently only uses tungsten rhenium thermocouples. I am using the BN insulation, sintered tungsten tube , successfully used in 1800 ℃ -2000 ℃ vacuum furnace, there are many users.

6,Tungsten- rhenium thermocouples liquid steel temperature measurement application < span style = "font-size: 12px">

Under vacuum conditions , the use of metal-ceramic protective tube (Φ10 × 140 ~ 190) tungsten rhenium thermocouple batch temperature of molten steel in-line measurement , in order to meet the needs of a vacuum metallurgical production process .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

A tungsten rhenium thermocouples overview

Tungsten- rhenium thermocouples is high temperature thermocouples. It has the potential of a linear relationship between temperature , thermal stability , reliable, cheap, etc. . And display instrument for direct measurement of liquids , steam and gases such as temperature. It can partially substitute platinum-rhodium thermocouple as high metallurgical industry , high-temperature electronic thermoelectric systems and space vehicle structural engineering , ultra-high temperature nuclear reactors measurement tools .
Tungsten- rhenium thermocouples for temperature dependence of thermopower meet ZBN05003-88 indexing table , equivalent ASTME696-84 standards. In a vacuum , reducing , inert atmosphere , at 0 ~ 2300 ℃ range. The use of special protective tube tungsten rhenium even can at 1600 ℃ under oxidizing atmosphere, long-term use , its price is lower than the platinum- rhodium thermocouple .

Second, tungsten rhenium thermocouple temperature tolerance tungsten rhenium thermocouples

Temperature 1300 ~ 1700 ℃ Tolerance 0.5% | t |
0 ~ 2300 ℃ Tolerance 1% | t |

Third, temperature insulation resistance : tungsten rhenium thermocouples in the ambient air temperature of 20 ± 15 ℃, relative humidity less than 85% , the heat between the electrode and the outer protection tube insulation resistance should be greater than 100MΩ.m.

Forth , tungsten rhenium 3/ 25 tungsten rhenium thermocouple protection tube outer

( 1 ) silicon carbide tube (Sic) at 1600 ℃ oxidizing atmosphere using the following
( 2 ) molybdenum disilicide tube (Mosi2) at 1600 ℃ under air and some corrosive atmospheres ( supply agreement )
( 3 ) molybdenum tube (Mo) at 2300 C in vacuum using the following ( supply agreement )
( 4 ) tantalum tube (Ta) at 2300C using the following vacuum ( supply agreement )

Fifth , tungsten rhenium thermocouple indexing are: tungsten rhenium 3 - 25 tungsten rhenium , tungsten, rhenium 5 - tungsten- rhenium 26.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

Standardization of tungsten rhenium thermocouples are tungsten rhenium 3 - tungsten- rhenium 25 (D -type ) and tungsten rhenium 5 - tungsten rhenium 26 (C -type ) of two types, corresponding indexing are: tungsten rhenium 3 - tungsten and tungsten- rhenium 25 rhenium 5 - tungsten rhenium 26.

Tungsten- rhenium thermocouple wire quality performance standards described :

1 , Delivery specifications for diameter 0.1 ~ 0.5mm, diameter tolerance of ± 0.01mm;

2 , Even silk smooth surface, no oxidation, no bending, no glitches, mezzanine and splitting , allowing a small scratches , dents and a few spots ;

3 , According to the provisions sampling sampling test, the positive wire ( low rhenium ) and negative wire ( high rhenium ) at 1200 ℃ uneven thermal emf when no more than 80 microvolts (t0 = 0 ℃, namesake electrode method );

4 , At 20 ~ 30 ℃ ambient temperature , thermocouple wire diameter 5 times its own diameter shaft 5 laps wound surface without cracks, dual wire bent without breaking ;

5 , The temperature thermoelectric properties verification point : 100 ℃ (± 1 ℃), 1000 ℃ (± 10 ℃), 1200 ℃ (± 10 ℃), 1400 ℃ (± 10 ℃), 1600 ℃ (± 10 ℃), 2000 ℃ (± 10 ℃), or in consultation with users selected test temperature points ;

6 , Each batch furnaces have passed the type test .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

1 , the level of tungsten rhenium alloy products , specifications, use , temperature range, tolerance :

Level Specification (φmm) Operating temperature range (℃) ; The tolerance
Special 0.1 1400-1800 ≤ ± 0.128% t
Ⅰ 0.1; 0.5 ; 1200-1800 ≤ ± ; 0.25% t
Ⅱ 0.1; 0.5 ; 1200-1800 ≤ ± 0.50 % t

2 , the use of tungsten- rhenium alloy products : tungsten added 3 %, 5 %, 25 % and 26% of rhenium, tungsten rhenium alloy formation . Tungsten- rhenium alloy has good electrical properties and ductility and workability , can be used in high temperature thermocouple wire and the cathode wire.

3 , tungsten rhenium alloy general description of products and precautions :

①. Was extremely tungsten rhenium 3 ; tungsten- rhenium 5 . Extremely negative tungsten rhenium 25 ; tungsten- rhenium 26.

②. Temperature point : the cold end is 0 ℃, the hot side temperature 100,1000,1200,1400,1600,2000 ℃; φ0.1mm wire with 1554 ℃ palladium wire point calibration, in the form of pure platinum wire test 1769 ℃ Calibration .

③. Uniformity: Even when the wire unipolar head and tail at 1200 ℃ uneven potential ≤ ± 40 microvolts.

④. Flexibility: thermocouple wire annealing stabilized after six laps wound itself can not break.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

Tungsten- rhenium thermocouples is 1931 by goedecke ( Ge virtues g ) first developed out at 60 to 70 years to develop the most successful refractory metal thermocouples. Tungsten- rhenium thermocouple is characterized by: a high melting point hot wire (3300 ℃), vapor pressure, easily oxidized ; in a non- oxidizing atmosphere, good chemical stability. Emf , high sensitivity , the most important is cheap.

1 , tungsten rhenium thermocouples classification . Included in the national standards of tungsten rhenium thermocouples , there are two :

a, tungsten rhenium 5 - 26 tungsten rhenium , its positive nominal composition of 95% tungsten , 5% rhenium , tungsten cathode a nominal composition of 74% , 26% rhenium . Indexing number of wre5-wre26, abbreviated : w-re5/26.

b, 3 tungsten rhenium - tungsten rhenium 25 , its positive nominal composition of 97% tungsten , 3% rhenium , tungsten anode nominal composition of 75% , 25% rhenium . Indexing number of wre3-wre25, abbreviated : w-re3/25.

2 , the use of tungsten- rhenium thermocouples . Current measuring a temperature above 1600 ℃ , the use of non- contact method , however, the method of error is large , such as the contact law can accurately measure the real temperature . In the high-temperature thermocouples , precious metal thermocouples are expensive and the maximum temperature only in 1800 ℃ below, while tungsten rhenium thermocouple temperature limit is not only high, but good stability, therefore , tungsten rhenium thermocouples in metallurgy , building materials, aerospace , aviation and nuclear industries have been widely used . Rich resources of tungsten , tungsten- rhenium thermocouples cheap, can be partially substituted precious metal thermocouples , it is the high-temperature test promising field of temperature materials .

3, the use of temperature . Its maximum temperature can reach 2800 ℃, however , higher than 2300 ℃ , the data is scattered. Therefore , the use of temperature, preferably at about 2000 ℃ .

4 , the use of atmosphere. Easily oxidized tungsten- rhenium thermocouples , suitable for hydrogen in an inert or dry use , or dense protective tube isolated in order to use it with oxygen . Carbon-containing atmosphere can not be used ( as in the use of hydrocarbon-containing atmosphere , the temperature exceeds 1000 ℃ i.e. by corrosion) . Tungsten or tungsten- rhenium in a carbonaceous atmosphere is easy to form a stable carbide , that reduce the sensitivity and cause brittle fracture, in the case of the presence of hydrogen , is accelerated carbonation .

5 , tungsten rhenium thermocouples antioxidant . The issue has been a subject of concern to scholars at home and abroad , and is committed to study and solve . Our company adopts the international advanced making process , successfully developed a high temperature and pressure assembly type thermocouple w-re , the product temperature range of 0 ~ 1800 ℃, widely used in metallurgy , coking , chemical furnace , heat treatment, glass and other industries, it has a high accuracy , low price , stable performance, the work atmosphere free from restrictions , etc., instead of platinum and rhodium thermocouple is the ideal product. I produced the w-re thermocouple in Zhuzhou Cemented Carbide Works , Zigong Cemented Carbide factory and Shenyang Tech and other units, widely used, the performance reached the level of similar foreign products . Its technical indicators are as follows :

1 , sub-degree No. : w-re3/25, w-re5/26
2 , temperature range : 0 ~ 1800 ℃
3 , temperature measurement accuracy : <± 1% t; <± 0.5% t
4 , the time constant : ≥ 180 s
5 , insulation resistance :> 5mω
6 , Size : 300,500,750,1000,1100 (mm)

Tungsten- rhenium thermocouple temperature measurement of molten steel is designed for rapid measurement of molten steel , iron and other metals melt temperature was designed and manufactured , it has a volume of some  fast response , high accuracy and low price . Its technical indicators are as follows :

1, the maximum temperature temperature : 1800 ℃ .2, temperature measurement accuracy : ≤ 0.5% t.3, Insulation resistance : ≥ 30 mω.4, measuring the success rate : ≥ 98% .5, Response time: < ; 5 s.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

A Tungsten Rhenium Thermocouple Esther Fast Sex :

The melting point of tungsten- rhenium thermocouple wire in: 3120-3360 ℃, can be used up to 3000 ℃, it is the most high-temperature metal thermocouples. It has a high thermoelectric power , high sensitivity, insoluble in any separate acids, abundant raw materials in China , cheap, etc. .

Second, tungsten rhenium thermocouple fast product standards :

1, JB/T9496-99 tungsten- rhenium thermocouple wire .
2, JB/T9497-99 tungsten- rhenium thermocouple wire and indexing table ( equivalent to using U.S. ASTME696-84) standard .
3, JJG576-88 work with tungsten rhenium thermocouple test procedures .
4, JB/T5401-91 rapid measurement of the temperature of molten steel with tungsten rhenium thermocouple wire .
5, JB/T5402-91 rapid measurement of the temperature of molten steel with tungsten rhenium thermocouple wire , thermal EMF test methods .

Three , tungsten rhenium thermocouples product names and fast indexing :

1 , Name : Tungsten rhenium 3 - tungsten rhenium 25 ; tungsten rhenium 5 - tungsten rhenium 26.
2 , Sub-Degree No. : WRe3-WRe25 (D -type ); WRe5-WRe26 (C -type ).

Four , tungsten rhenium thermocouple products quickly grade , size, temperature range, tolerance :

Five , tungsten rhenium thermocouple wire insulation material :

1 , High purity alumina (AL2O3) can be used within at 1800 ℃ .
2 , Yttria (YO2) can be used within at 2000 ℃ .
3 , Beryllium oxide (BeO) at 2100 ℃ or less used, but toxic beryllium high temperature steam .
4 , Thorium oxide (ThO2) at 2300 ℃ or less to use, but has a weak anti- radioactive thorium .

Six , tungsten rhenium thermocouple wire outer protection tube :

1 , Tantalum tube (Ta) within a vacuum at 2480 ℃ use .
2 , A molybdenum tube (Mo) or less at 2300 ℃ vacuum and inert gas atmosphere of hydrogen used .

Molybdenum disilicide tube (Mosi2) or molybdenum silicide coating tube surface air at 1600 ℃ or less and some corrosive medium and long-term use .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

First,Fast Thermocouple Uses and Works

Fast thermocouple for measuring the temperature of molten steel and the temperature of the melt , the time consumption type thermocouple . Its working principle is based on the thermoelectric effect of the metal , a thermocouple temperature difference generated across the electric measurement of molten steel , and high temperature of molten metal .

Second, Product Specifications and Performance Comparison

Name Type indexing tolerance for temperature measurement time

Best Cap

Platinum and rhodium 30 - platinum and rhodium 6 KB-602P B ± 5 1500-1700 1750 4 ~ 6s
PtRh10 - Platinum KS-602P S ± 5 1400-1600 1650 4 ~ 6s
Platinum and rhodium 13 - Platinum KR-602P R ± 5 1400-1600 1650 4 ~ 6s
Tungsten- rhenium 3 - tungsten rhenium 25 KW-602P W ± 7 1500-1700 1800 4 ~ 6s

Third, the Structure

Fast thermocouple structure which is mainly composed of head temperature even large sheet of paper tube. There are positive and negative dual head thermocouple wire welded wire compensation , the compensation wire wear embedded in the bracket, bracket coat a small paper tube, thermocouple wire quartz support and protection. Outermost equipped with anti- slag cap, all components in concentrated load dump and refractory fillers bonded into a whole, and not removable , so for one-time use .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com;sales@xiamentungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn