Tungsten Crucibles

Tungsten crucibles are a type of tungsten metal product, primarily divided into sintering molding (used in powder metallurgy technology), stamping molding, and spinning types. These crucibles are made using tungsten rods through turning processes (typically for smaller sizes), a variety of welding methods, and pure tungsten plates or rods processed through the corresponding techniques. Tungsten crucibles can be used in vacuum or inert gas environments at temperatures up to 2600°C. Tungsten has a high boiling point, high-temperature strength, abrasion resistance, corrosion resistance, high thermal conductivity, a low thermal expansion coefficient, and good hardenability. Tungsten-cerium is widely used in industries such as rare earth smelting, quartz glass production, electronic spraying, and crystal growth.

Our company's crucibles are widely used as core containers in industrial furnaces, such as sapphire single crystal growth furnaces, quartz glass melting furnaces, and rare earth smelting furnaces. These furnaces typically operate at temperatures above 2000°C. In particular, for sapphire single crystal growth furnaces, crucibles with high purity, high density, no internal cracks, precise dimensions, and smooth inner and outer walls are crucial for the success rate of seed crystal growth, quality control during crystal pulling, detachment and sticking of pots, and extending the service life during sapphire crystal growth. Shaanxi Yuanzekai Metal Technology can process and customize crucibles of various specifications and sizes according to customer requirements and can offer tungsten, molybdenum, tantalum, or niobium materials.

Material	Density	Diameter	Height
Tungsten crucible purity 99.95	19.3g/cm³	70mm-550mm	50mm-700mm
Molybdenum crucible purity 99.95	9.8g/cm³	70mm-550mm	50mm-700mm

 

Precautions for use

 

Preheating: Before use, the crucible must be preheated. It should be slowly heated to 500°C. After use, avoid placing the crucible on a cold metal surface immediately, as sudden temperature changes can cause it to crack.

 

Avoid Falling and Collision: Tungsten crucibles are relatively fragile and can break easily from external impacts. Handle them with care to prevent dropping or collisions.

 

Avoid Overheating: While tungsten crucibles have high-temperature resistance, they should still be protected from overheating to prevent melting. The maximum temperature that tungsten can withstand is 2600°C.

 

Avoid Chemical Corrosion: Tungsten crucibles should be kept away from highly corrosive chemicals to prevent material degradation and extend their lifespan.

 

Maintenance and Care: After use, clean the crucibles promptly and store them in a dry environment. Ensure that the crucible is completely dry before the next use to avoid cracking caused by residual moisture.

 

 

product key technologies

01.

Product specifications:

Outer Diameter: <800mm

Wall Thickness: >1mm

Material: W1, W2

Size (Diameter): 10-500mm

Purity: 99.95%

Density: ≥18.5 g/cm³

Height: 10-750mm

Tolerance: ±5.0mm

Wall Thickness: 8-20mm

Surface Roughness: Ra = 1.6

Melting Point: 2400°C

Product Classification: Sintered crucible, machined crucible, welded crucible, stamped crucible

02.

Tungsten crucible manufacturing process

Sintered Crucible: Pressed billet → Secondary sintering → Secondary sintering → Surface treatment → Polishing

 

Machined Crucible: Bar billet → Wire cutting → Rough turning → Finishing → Inspection → Surface polishing

 

Welded Crucible: Slab → Rolling → Annealing → Alkali washing → Wire cutting → Bending or curling → Vacuum welding → Finished product surface treatment → Inspection

 

Stamped Crucible: Slab → Rolling → Annealing → Alkali washing → Shearing → Die stamping → Inspection

Frequently Asked Questions

 

 

Lorem ipsum dolor sit amet,consectetur.

Can you make the product with my design?

+

-

Yes, we can, we supply customized service. You can send us all the details of what you need, then we will provide a detailed quotation.

Why should you buy from us not from other suppliers?

+

-

We supply the source as tungsten and molybdenum powder. So the price for the final products can be more favorable.

What's the quality control in your company?

+

-

We have an ISO 9001:2015 certificate, we must inspect our production strictly by our QC before shipping.

What services can we provide?

+

-

Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, Express Delivery;
Accepted Payment Currency: USD;
Accepted Payment Type: T/T, L/C, PayPal;
Language Spoken: English, Chinese, Japanese

How To Cooperate With Us?

First, tell us your needs, including specifications, quantity, materials, and technical requirements, through the following contact information.

 

Next, we will communicate the price, reach an agreement, and proceed with the advance payment.

  

whatsApp Number

86-18700758977

E-mail

krystal@yuanzekai.com

 

 

 

 

 

Hot Tags: tungsten crucibles, China tungsten crucibles manufacturers, suppliers, factory, titanium forged ring, titanium cathode plate, cnc machined titanium parts, , titanium tee