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Gold Ingot Metal Casting Crucible , Small Crucible For Melting Silver Jewellery

Categories Graphite Crucible
Brand Name: SUPER
Model Number: 1kg ,2kg,3kg gold
Certification: CE
Place of Origin: China
MOQ: 5pcs
Price: Negotiation
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 5000pcs/month
Delivery Time: 3-5 working days after payment
Packaging Details: by carton or by by plywood case
composition: high density graphite
Density: 1.75--1.85g/cm3
top diameter: 20-1000mm
bottom diameter: 40-1000mm
shape: cylindrical
volume: 1-3kg gold/batch
OEM: acceptable
Application: heat treatment furnace
Name: Ingot Casting Graphite Crucible
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Gold Ingot Metal Casting Crucible , Small Crucible For Melting Silver Jewellery

Goldsmith Using Gold Ingot Casting Graphite Crucible Silver Jewellery


Application of high purity graphite crucible :


1. Graphite crucible can be used for non-ferrous metal smelting and casting, melting aluminum, dissolving gold or silver ornaments, analysis of special type steel, sintering hard metal.


2. For smelting gold is specialized in melting gold in headgear and jewelry industry. That requests graphite material has high density and purity, ablation-resistance, and it can be used many times. We can machine various crucibles accordingto customer's requirement.


3. Machined from high pure graphite and widely used in the gold,silver,platinum and other noble metal's melting.If it's used in oxygen atmosphere,it wil start to be oxygenized when the temperature is higher than 700-800°c. If it's used in the protective atmosphere, it can stand more than 2000°c.


4. Widely used in such fields as industrial furnaces, mono-crystalline silicon machinery, mono-crystalline silicon machinery, electron, semi-conductor, metallurgy, oil, chemistry, textile, electrical machinery, electrical equipment, electrical furnace, traffic, communication industry, medicine, etc.


Advantages of SUPER graphite crucible :


1) With excellent electrical conductivity and high thermal conductivity


2) Only needs low thermal expansion, resulting in high thermal resistance


3) It is a Graphite Crucible well-functioned under high temperatures


4) Making chemical inertness and non-wetting to metals


Features of graphite crucible :

  • High temperature resistant, no cracking
  • Anti-corrosion
  • Good thermal chock resistance
  • Excellent thermal conductivity
  • High purity and long service life

Note :

1. Graphite crucible cannot be exposed in moisture, and must be placed in indoor dry place or wooden shelf. Maintain ventilated. Moisture is strictly prohibited. Damped crucible is likely to crack.


2. Each crucible, especially damped ones, must be preheated and roasted in drying equipment or next to a ground furnace before use. The roasting temperature should start from a low temperature of 100°C below. Roast it to 150°C at a speed of not higher than 30°C per hour. Preserve the heat for about 8 hours and then dry it. The crucible dried next to a ground furnace should be placed at least for one shift, and often turned to change direction, till workers feel the internal wall of crucible is hot.


3. The melting time for the first time should be at least twice of the normal melting time, in order to avoid cracking inside the crucible due to heating up too fast, or even cracking immediately when the fire sets on


.


Material for High pure graphite crucibles

ItemUnitHigh pure graphite
baked twicebaked three timebaked four times
impregnated onceimpregnated twiceimpregnated three times
Grain sizemm≤325mesh≤325mesh≤325mesh
Bulk densityg/cm3≥1.68≥1.78≥1.85
Specific resistanceμΩ.m≤14≤14≤13
Bending strengthMPa≥25≥40≥45
Compressive strengthMPa≥50≥60≥65
Ash content%≤0.15≤0.1≤0.05
We accept small orders,please inquiry us freely.

Stardard models of SUPER graphite crucible :

Product nametypesize(mm)Weight of the product(g)
dia1dia2dia3H
1kg graphite crucibleSP-100058473588160
1kgceramic crucibleSP-1000A69574987175
2kg graphite crucibleSP-2000655844110240
2kg ceramic crucibleSP-2000A817060110270
2.5kg graphite crucibleSP-2500655844126300
2.5kg ceramic crucibleSP-2500A81.471.460127.5320
3kg graphite crucibleSP-3000857560105390
3kg ceramic crucibleSP-3000A978878103335

Any special requirement is available


Graphite crucible Packing:

1. New dampproof air bubble film package for the product
2. New and high quality paper box fill in to protect the goods
3. Solid and strong wooden box outside


Buy Gold Ingot Metal Casting Crucible , Small Crucible For Melting Silver Jewellery at wholesale prices
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