Shandong Huaci International Trade Co., Ltd. is one of the leading manufacturers and suppliers of ceramic fiber furnace bottom plate in China, featured by quality products and good service. Welcome to wholesale custom made ceramic fiber furnace bottom plate at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
Product Overview
Ceramic Fiber Furnace Bottom Plate is the load-bearing hearth component that sits directly under the charge in heat treatment furnaces, trolley furnaces, box furnaces and continuous kilns. It carries the full static and dynamic load of the workload through every heating and cooling cycle, so its material selection, structural integrity and dimensional stability determine furnace uptime more than any other single part of the hearth.
Each plate is cast in one piece and then given a secondary high-temperature annealing treatment. The casting step removes the weld seams that would otherwise be the weak points under load; the annealing step relieves the residual stress locked in during solidification, which is what keeps the plate flat instead of warping after a few hundred cycles.
Key Features
- One-piece integral casting: no weld seams, so there is no structural weak point in the area that carries the charge.
- Secondary high-temperature annealing: residual casting stress is relieved before shipment, locking in flatness and dimensional stability.
- Alloy matched to the atmosphere: chromium-nickel grades are selected for 900-1200 C service in oxidising, reducing or neutral atmospheres.
- Thermal cycling endurance: designed for repeated rapid start-stop without cracking, warping or permanent deformation.
- Dense uniform structure: even heat conduction across the plate keeps the surface temperature stable under the charge.
- Oxidation and flue-gas resistance: the alloy develops a stable oxide film in oxidising and neutral atmospheres.
Technical Specifications
|
Standard alloy grades |
ZGCr25Ni20, ZGCr24Ni7SiN, 310S, 1.4837, 1.4848; custom alloy formula on request. |
|
Service temperature |
900 C to 1200 C continuous. |
|
Plate thickness |
typically 30-120 mm, up to 200 mm for heavy duty. |
|
Load rating |
engineered per order against plate thickness, support span and alloy strength at temperature. |
|
Casting method |
one-piece integral precision casting followed by high-temperature annealing. |
|
Surface finish |
as-cast or precision machined to the flatness tolerance agreed per drawing. |
|
Documentation per order |
material certificate, mechanical test report, dimensional inspection report. |
Application Scenarios
Ceramic Fiber Furnace Bottom Plate is specified as the carrying base for trolley furnaces, box-type heat treatment furnaces, quenching, tempering and annealing furnaces, and continuous mesh-belt or roller-hearth kilns. It also carries cast tooling and large castings through normalising, solution treatment and stress-relief cycles, carries aluminium and copper charges through solutionising and aging without contaminating the alloy, and serves as a die carrier plate in forge shop lower-temperature zones.
Factory & Service Advantages
We operate our own casting plant and high-temperature annealing furnaces alongside the export packing line rather than acting as a trading intermediary. Every batch is traceable: alloy certificates, batch composition test, casting parameters, annealing curves, mechanical test results and final dimensional inspection are archived against the plate serial number. Both standardised batch production and small-batch non-standard casting are supported. Export packing uses anti-collision, moisture-proof and rust-proof materials, and OEM or private-label marking is routine.
FAQ
Q: How do I pick the right alloy grade?
A: Match it to the continuous operating temperature and atmosphere. 310S and 1.4837 are the workhorses to 1050 C in oxidising atmospheres; 1.4848 handles 1100-1150 C continuous; ZGCr25Ni20 and ZGCr24Ni7SiN are specified for 1150-1200 C and reducing atmospheres. Send the furnace data and we will confirm the grade.
Q: What load can the plate carry?
A: Load capacity is engineered per order against plate thickness, span between supports, alloy strength at temperature and the safety factor you require. Plates in this line typically carry 80-250 kg per square metre without measurable deflection at temperature.
Q: Will the plate crack under frequent cycling?
A: Not when the grade is correctly matched. One-piece casting plus secondary annealing removes residual stress before shipment, and the alloy develops a stable oxide film that protects against thermal fatigue cracking.
Q: Can the plate be machined after delivery?
A: Yes. Plates are delivered as-cast or finish-machined to drawing. On-site drilling and milling with standard carbide tooling is supported, and for retrofit work we can quote a machining allowance and pre-machine critical features.
Q: What is the lead time for a custom size?
A: Common grades and sizes ship from stock in 15-20 days. Custom cast sizes for non-standard furnaces typically need 30-45 days from drawing confirmation, covering casting, annealing, machining and final inspection.
Hot Tags: ceramic fiber furnace bottom plate, China ceramic fiber furnace bottom plate manufacturers, suppliers, factory
