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Qingdao Yosion Labtech Co, Ltd

sansha road,Qingdao,Shandong,China

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Free Member

Refractory Fire Assay Magnesia Bullion Block/ Bone Ash Cement Bullion Block/Cement Block/Cupel

China

-

0.1 ~ 0.5 / Piece Get Latest Price

QINGDAO,CHINA

0.1 per Piece

1000

AS REQUIRED

15DAYS

100000 Piece per Month

L/C, T/T

-

Contact Now

Product Description

Specifications

Cupellation is the last and most important step in fire assay process and as such, the quality of cupel is extremely crucial.

During cupellation, the lead is oxidized to litharge (PbO), most of which is absorbed by the cupel. Gold, silver, platinum and other precious metals form a bead in the cupel. The bead is subsequently treated to determine its precious metal content .

Cupels are typically made from magnesia MgO (sometimes mistakenly referred to as magnesite), bone ash, Portland cement and other materials.

Typical cupellation furnace temperatures in gold and silver assays are 900-1000°C, but can vary with technique, air flow volume and cupel material.

Yosion aims to manufacture cupels with followings:
Robust mechanical strength.
Not affected by atmospheric changes.
No spitting of lead.
Rapid absorption of large quantity of litharge.
Free from cracking and pitting.
Beads are easily removable.
Perfect uniformity of quality.
Reduced tendency to freeze.
Consistently low losses.
Regularly tested in our own assay lab. Manufactured with unique blend of Magnesium Oxide and special fluxing ingredients.

Available sizes are: 6A, 7A, 7AS, 7AL, 8A and 9.
 
Customized sizes and services are also available.

 

Technical Parameters:
Size Outer Dia mm Cup Dia
mm
Base  Dia m m Height   of Cupel  mm Depth  of Cup  mm Height   of Ridge mm Net Weight g Nos Per carton Carton Dimension cm
  D D1 D2 H H1 H2      
2x 24 18 19 17 8 4.5 13 1040 34x22x22
3 26 23 20 20 5.5 8 17 864 34x22x22
4 29 24 23 22 6 8 20 486 30x30x15
5 35 27 26 26 8 6.5 35 378 34x22x22
6A 40 30 30 26 12 6 62 200 34x22x22
7A 40 30 30 32 12 10 72 200 34x22x22
7AS 40 32 30 32 15 10 62 200 34x22x22
8A 45 38 37 35 13 13 103 200 38x24x21
8AM 45 33 37 35 12 15 110 200 38x24x21
9 51 40 43 30 11 5 120 120 34x22x22
9A 51 40 39 34 15 14 123 120 34x22x22

11

56

46

46

37

14

11

166

100
34x22x22
30x25x22
Z27 27 23 27 23 10 / 29 500 30x30x15
Z40 40 32 40 30 15 / 73 200 34x22x22

Contact Us

Contact Person :Ms. Fiona

Company:Qingdao Yosion Labtech Co, Ltd

Address:sansha road, Qingdao, Shandong, China,

To,

Ms. Fiona < Qingdao Yosion Labtech Co, Ltd >
I want to know:

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