• Model NO.：WRe5
• Material Shape：Round Wire
• Range of Application：Heating
• Certification：ISO9001, RoHS
• Brand：Huona
• Dia：0.25mm
• Surface：Bright
• OEM：Yes
• Stock：Syen
• Transport Package：Cartons
• Specification：0.3mm 0.5mm
• Trademark：HUONA
• Origin：Shanghai
• HS Code：95029000
• Production Capacity：1000 Kgs , Year

The excellent performances of Rhenium3180ºC High melting pointExcellent high temperature ductilityOver a wide temperature range with high resistivityStrong resistance to chemical corrosionGood oxidation resistance at high temperatureGood thermal shock resistanceLow vapor pressure 

 Preparation of raw materials - the raw material separation - mixing - reduction treatment - second mixing - pressure sintering - swaging, drawing - Finished

Production Process

 1: raw material preparation
 Raw materials for the tungsten powder and ammonium rhenium powder, tungsten powder particle size less than 4um, ammonium rhenium size of less than 200um

2: material separation
Tungsten powder and ammonium rhenium powder were separated in the separator, so that agglomerated particles well dispersed

3: Mixing
The separation had separated tungsten powder and ammonium rhenium powder together were loaded efficient mixer mixing, mixing time 10-24 hours

4: reduction treatment
Mixed alloy powder under the protection of hydrogen reduction treatment. Reduction treatment in three stages:
The first stage: the reduction temperature is 200-350 ° time 1-2h
The second stage: the reduction temperature is 400-600 ° time 1-2h
The third stage: the reduction temperature is 700-900 ° time 1-2h
Processing time for each stage of the processing apparatus according to the conditions, the chamber volume, added material may be
5: second mixing
Mixing, mixing time 8-20h alloy powder after reduction by re-loading efficiency blender

6: Pressure sintering
The second alloy powder after mixing is compressed into billet, billet now pre-sintering time 0.4-1h, pre-sintered at a temperature of 2600-3000 ° billet at a temperature of 1100-1300 ° and hydrogen protection and hydrogen under the protection of the final incipient fusion sintering time 1-2h

7: swaging, drawing
Sintered billet in the swaging swaging machine processed into thin rods, thin rod drawing machine drawn into tungsten-rhenium alloy wire

 8: Finished
Packing: Each volume 400-600g, per kilogram of 250m-260m.