Fire Assay Crucibles

clay graphite crucible 1
clay graphite crucible 2
clay graphite crucible 3
clay graphite crucible 4
clay graphite crucible 5
clay graphite crucible 1
clay graphite crucible 2
clay graphite crucible 3
clay graphite crucible 4
clay graphite crucible 5

Clay Graphite Crucible

Qingdao Decent Group offers clay graphite crucible models ranging from 1# to 1500# with a full range of specifications. The product uses high-quality raw materials and advanced formula combination, which ensures reliable and durable quality. For smelting and casting of non-ferrous metals, it has always been indispensable. The clay graphite crucibles have excellent characteristics, including high density, corrosion resistance, high temperature resistance, rapid heat transfer, strong oxidation resistance, high thermal shock resistance, stable chemical performance, beautiful appearance, and durability. It has a good record of quality and reliability, and it sells well.

Product Details

High-density, corrosion-resistant, fast-heating clay graphite crucible

Qingdao Decent Group offers clay graphite crucible models ranging from 1# to 1500# with a full range of specifications. The product uses high-quality raw materials and advanced formula combination, which ensures reliable and durable quality. For smelting and casting of non-ferrous metals, it has always been indispensable.

The clay graphite crucibles have excellent characteristics, including high density, corrosion resistance, high temperature resistance, rapid heat transfer, strong oxidation resistance, high thermal shock resistance, stable chemical performance, beautiful appearance, and durability. It has a good record of quality and reliability, and it sells well.

Supporting furnace types: resistance furnaces, medium frequency electric furnaces, electromagnetic induction furnaces, biological pellet furnaces, gas furnaces, coke furnaces, oil furnaces, and gas producers.

Scope of application: smelting various non-ferrous metals such as gold, silver, copper, aluminum, tin, lead, zinc, and various non-ferrous metal alloys.

Mark: Customized graphite crucibles and graphite special-shaped products can be produced according to customer requirements.

[ Standard Features ]

1. Long lifespan: Compact embryos are formed under high pressure, so their service life is three to five times longer than that of traditional clay crucibles.
2. Fast heat conduction: The embryo body's high density and low apparent porosity significantly enhance the crucible's heat conduction ability.
3. New materials: thermally conductive materials reduce the amount of sticky slag, and they provide high heat transfer, pollution-free products, and ensure efficient heat transfer.
4. Corrosion resistance: Compared to clay crucibles, it offers greater corrosion resistance.
5. Anti-oxidation: The embryo body is treated with advanced technology to make it more resistant to oxidation, which ensures its long-lasting thermal conductivity and long life.
[ Precautions for Transportation, Storage and Use ]

1. Pay attention to moisture-proof, keep dry and ventilated.
2. Do not place the crucible directly on the ground. The crucible should be placed on a wooden pallet.
3. Use a cart or cushion to prevent damage to the glaze layer during transportation.
4. Follow the correct procedure to preheat and bake the empty graphite crucible.
5. Use an appropriate amount of flux.
6. Use crucible clamps correctly to avoid damaging the glaze layer.
7. Even clean the graphite crucible after each use.

[ Graphite Advantages ]

1. Temperature resistance: Graphite is one of the most temperature resistant materials currently known. Its melting point is 3850°C, and its boiling point is 4250°C.

2. Special thermal shock resistance: Graphite has good thermal shock resistance, meaning that when temperatures change suddenly, it has an extremely low thermal expansion coefficient, so it is very thermally stable. Graphite will not crack when the temperature changes rapidly.

3. Thermal conductivity and electrical conductivity: Graphite has very high thermal and electrical conductivity compared to general materials. The resistance is four times greater than stainless steel, two times greater than carbon steel, and 100 times greater than general non-metal.

4. Lubrication: Graphite has a lubricating performance similar to that of molybdenum disulfide, and the friction coefficient is less than 0.1. Liquidity will vary with scale size. The larger the scale, the smaller the friction coefficient, the better the lubricity.

5. Stability in chemicals: Graphite is chemically stable at room temperature and resistant to acids, alkalis, and organic solvents.

[ Physical And Chemical Indexes ]

Project

Standard Parameters

Test Parameters

Refractoriness

1630°C

1635°C

Carbon Content

38%

41.46%

Porosity ≤

35%

32%

Volume Density

1.6g/cm3

1.71g/cm3

SiC Content

24%

24%

[ Technical Parameters ]

Specification

Up outside diameter-D (mm)

Bottom outside diameter-d (mm)

Overall height-H (mm)

clay graphite crucible

1#

70

46

80

2#

87

60

107

3#

105

71

120

5#

118

83

145

8#

127

94

168

10#

137

100

180

12#

150

107

195

16#

160

111

205

20#

178

120

225

25#

196

128

250

30#

215

146

260

clay graphite crucible with spout

40#

230

165

285

50#

257

179

314

60#

270

186

327

70#

280

190

360

80#

296

189

356

100#

321

213

379

120#

345

229

388

150#

362

251

440

200#

400

284

510

sic graphite crucible

250#

430

285

557

300#

455

290

600

350#

455

330

625

400#

526

318

661

500#

531

318

713

600#

580

380

610

750#

600

380

650

800#

610

400

700

1000#

620

400

800

1500#

780

460

890

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