Fire Assay Refractory Clay Crucible is mainly used in the analysis of metal samples and melting samples in laboratories, mineral laboratories and various industrial laboratories.
Clay Crucible---Assay Crucible
The samples and ingredients are put into the crucible, and the melting experiment is carried out at high temperature. The lead button obtained by liquid precipitation is then subjected to the next experiment;
Using high-quality materials, high temperature resistance, good thermal conductivity, high melting purity, strong corrosion resistance and long service life.
Features: High refractoriness, no slag, no penetration, no cracking, it is the first-class auxiliary equipment for fire assay.
Assaying Fire Clay Crucible
A modern fire assay crucible is not that far removed from those of the past with the exception of the additional science behind it’s composition. Modern crucibles are made for laboratory use rather than refining and so are required to be exacting in their specifications. Additionally they should be strong enough to withstand huge changes in temperature through multiple uses.
The crucible is used for the first part of the fire assay fusion process. The following process is typical:
· Flux and sample are added to the crucible
· The above additions are mixed together inside
· Heat is applied to the crucible and mixture by placing the pot in a furnace at > 1000oC
· After a pre-determined period of time the crucible is removed and the molten contents are poured into a cast iron mould
· The crucible is cooled and ready for it’s next use however, it may be disposed of if the previous sample contained high quantities of gold.
Wooden Case Dimension (mm)
Fire assay crucible
SiO2 + Al2O3
Automatic molding equipment
ISO 9001 SGS
Many stocks , delivery time around 5-10days . by sea or by air as customer request
Delivery & Service:
Timely delivery each time. Provide reliable service and responsible for each customer with each product. Our target is to satisfy every customer with the best service.
L.O.I(loss on ignition)
Long lasting, can be used many times
High mechanical strength designed to withstand severe thermal shocks
Special formula, curing and pressing process
Can withstand extremely corrosive fire assay environments
Can withstand repetitive thermal shocks from 1300 degree Celsius to room temperature
7000 square meters work shop
Automatic production line
Longer working life
All prototype products have to go through 4 checks in the whole process:
1. Raw material inspection
2. In processing inspection
3. Final inspection
4. Outgoing inspection
Leave A Message
Copyright © 2022 Liling xing tai long special ceramic co.,ltd All Rights Reserved.