Product Description

1. Overview

The products have passed ISO-9002 quality system certification and enterprise quality management certification. They feature high accuracy, wide temperature range, and competitive pricing. They comply with YB4084-92 and YB/T163-1999 standards for fast measurement thermocouples for molten metals.

---

2. Tungsten-Rhenium Thermocouples

---

3. Platinum-Rhodium Fast Thermocouples

Advanced and stable fast-response platinum-rhodium thermocouples, widely used in major steel mills in China and exported annually to Europe.

Standards Referenced:

1. Product Standard: YB/T163-1999 (consumable fast thermocouples for molten metals)

2. Thermocouple Wire Standards:

   • Type S: GB/T3772-98

   • Type R: GB/T1598-98

   • Type B: GB/T2902-98

3. Compensation Wire Standard: GB/T4989-94 (for S and R type thermocouples)

Technical Parameters:

Length of Thermocouple Heads: 500, 600, 850, 1000 mm

---

4. Fast Thermocouple Probes & Temperature Guns

• The plug pins and leads in the temperature gun head are made of compensation materials corresponding to the thermocouple type:

  • SC (RC) type → Pt-Rh10/Pt (Pt-Rh13/Pt)

  • BC type → Pt-Rh30/Pt-Rh6

  • WC3/25 type → WRe3-WRe25

• Probe diameter: Φ16 mm (custom sizes available)

• Length: 1–4.5 meters

---

5. Thermocouple Compensation Wires

Standards:

• GB/T4989-94 (S and R type thermocouples)

• JB/T9496-99 (WRe3/25 and WRe5/26 thermocouples)

Thermoelectric Characteristics:

Wire Specifications:

• Fast thermocouples: 0.4 × 1.0 mm core, general use: 1.0 mm², outer diameter 5.1 × 8.0 mm

• Heat-resistant wire: 1.0 mm², outer diameter 3.1 × 5.6 mm

---

6. Steel Sampling Device

• Rapid steel sampling with models:

  1. KQY-01 – with deoxidizer

  2. KQY-02 – without deoxidizer

• Sample size: Φ32.5 × 13 mm, solid interior, smooth surface

• Total length: 964 mm, handle tube: Φ32 × 17 mm

• Equipped with magnetic sample grinding fixture for easy operation

---

7. Intelligent Temperature Instrument

Features:

1. High accuracy and stability; microprocessor automatically calibrates zero, full scale, and cold junction. Precision reference voltage ensures long-term stability.

2. Strong anti-interference capability

3. High-brightness LED digital display

4. Comprehensive functions with expandability; optional print interface

5. Isolated parallel BLD code output or 4–20 mA (1–5 V) analog output

6. Mainboard supports thermocouple type conversion; each unit supports two thermocouple types

7. Suitable for both fast-response and continuous temperature measurement

---

8. Tungsten-Rhenium Thermocouple Wires

Features:

• Melting point: 3120–3360℃, usable up to 3000℃

• High thermoelectric potential, high sensitivity, chemically stable, abundant raw materials in China, cost-effective

Standards:

• JB/T9496-99 (compensation wires)

• JB/T9497-99 (thermocouple wires & tables, ASTM E696-84 equivalent)

• JJG576-88 (calibration procedure)

• JB/T5401-91, JB/T5402-91 (fast steel temperature measurement)

Models & Types:

• WRe3-WRe25 (D-type)

• WRe5-WRe26 (C-type)

Grades, Specifications, Temperature Range, and Tolerances:

Insulation Materials:

• High-purity Al₂O₃: up to 1800℃

• Y₂O₃: up to 2000℃

• BeO: up to 2100℃ (toxic at high temperatures)

• ThO₂: up to 2300℃ (slightly radioactive)

Outer Protection Tubes:

• Ta: up to 2480℃ in vacuum

• Mo: up to 2300℃ in vacuum, hydrogen, or inert atmosphere

• MoSi₂ or Mo tube with silicide coating: long-term use in air or certain corrosive media up to 1600℃