Fonlink Photoelectric (Luoyang) Co., ltd
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long length tungsten bar for high temperature furnace heating element
1. high purity as ≥99.95%
2. high density as sintering bar or forged bar
3. excellent mechanical properties
4. can bear high temperature
According to the diamter, we have different production way for tungsten bar.
1. Small diameter like Ø5mm produced by swaging/spining,
2. if the diameter is up to 15mm, we will forge the rod after sintering, it will have high density.
3. When the diameter is as big as 150mm, we can only sinter it because of the big dimension. Density would be above 18.5g/cm3
All tungsten rod surface could be black, lathe-polishing and grinding according to customer’s requirments.
Tungsten rods are mainly used as heater, support pillar, feeder and fastener in vacuum or reducing atmosphere high temperature furnace. Also as light source in lighting industry, electrode in glass melting, and welding equipments.
tungsten powder---isostatic pressing--high temperature sintering---tungsten rod ingot---swaging for thin diameter---black surface---polish to bright surface
For the tungsten Rod, following is the normal tungsten rod dimension form. For any special dimension, call us please.
| item | surface | diameter/mm | length/mm | purity | density(g/cm³) | producing methord | ||
| Dia | tolerance | L | tolerance | |||||
| tungsten rod | grind | ≥3-25 | ±0.05 | ＜5000 | ±2 | ≥99.95% | ≥19.1 | swaging |
| ＞25-150 | ±0.1-0.2 | ＜2000 | ±2 | ≥99.95% | ≥18.8 | forging | ||
| ＞150 | ±0.5 | ＜800 | ±2 | ≥99.95% | ≥18.5 | sintering | ||
| black | ≥3-25 | ±2 | ＜5000 | ±2 | ≥99.95% | ≥19.1 | swaging | |
| ＞25-150 | ±3 | ＜2000 | ±2 | ≥99.95% | ≥18.8 | forging | ||
| ＞150 | ±5 | ＜800 | ±2 | ≥99.95% | ≥18.5 | sintering | ||
As the manufacturer, firstly, we have very good quality control system, the products will be inspected by each step including the surface, the dimension, crack, or other inspection item as cumtomer requires.
Secondly, as a factory, our price has obvious advantages. We'd like to make our customer purchase good quality products with good price. It's a win-win business.
What's more, we have full after sales service. In case there is a quality problem, we are responsible. And we will do our best to solve the problem to make our customer satisfied.
To ensure the safety during transportation, products will be packed accordingly with exportable wooden box with foam sheet protection inside.
If customer has special packing requirments, we will try to meet them.
Considering for the shipment, we suggest the length within 2m if it didn't affect the usage of the tungsten rod.
If products are suitable for vacuum packing, we will vacuum pack them.
Note: When you received the products, open the package carefully, some parts are sharp and heavy, please protect yourself. And if there is any damage, remember to contact with us in time, we will solve the problem soon for you.
For more information, please contact with me:
email: xiaqiaozhen@lysifon.com
Tel: 86 18638869625
whatsapp: 18638869625
skype: moonxia520