Silicon Carbide Heating Elements Silicon Carbide Rods Hotbar with Good Quality

• Customization: Available
• Certification: ISO9001
• Type: Medium-Wave Infrared Heating Tube
• Model NO.: ED, Gd, SCR, Sgr, Dumbbell, U, UL, H, W, Spiral
• Form: Spiral Heating Element
• Shape: Tubular
• Voltage: 110-480V
• Volume Density: 3.2g/cm3
• Install: Easy
• Video Outgoing-Inspection: Provided
• Diameter: 8-54mm
• Application: Furnace Heating
• Hot Extensibility: 4%
• Porosity Rate: 7.4%
• Service Life: Long
• Sic Content (%): 98.5%
• Resistance: Customized
• Transport Package: Wooden Box with Foam
• Origin: China
• HS Code: 85168000
• Production Capacity: 100000piece/Month

Product Description

Product Description

 

 

Introduction to Silicon Carbon Rod

          Hotbar silicon carbide resistance heating element is a rod-shaped or tubular body formed by extruding high-purity alpha silicon carbide raw materials and high-temperature recrystallization. The optimized structure of silicon carbide particles enables it to exhibit unique performance in industrial and laboratory use, with the best service life under various application conditions, especially in oxidizing and corrosive gas environments. Without any support, Hotbar components can be installed and used vertically or horizontally at 1600 ºC without deformation, which provides great convenience for kiln design and allows for component replacement in uninterrupted production. In the field of continuous operation production, Hotbar components exhibit this feature even more, and their high load bearing characteristics are suitable for small volume and high power environments. Therefore, it is widely used in various high-temperature electric furnaces and other electric heating equipment in industries such as lithium positive and negative electrode materials, magnetic materials, powder metallurgy, ceramics, glass, non-ferrous metals, and machinery.

Hotbar component model

          Hotbar components include RH type (equal diameter resistance), RL type (equal diameter low resistance), U type, CU type, M type (gate type), W type (three-phase), SG type (single thread), 5GR type (double thread), UX type (slot type), DB type (thick end type), HD type (high-density), etc. The diameter range of the rod body is from 8MM to 54MM, with a maximum length of 4300MM. The SG and SGR types have a maximum diameter of 75MM and a maximum length of 1000MM.
 

Product Parameters

project	Company	model
		RH & RL	HD
Volume density	g/cm³	2.5	2.65
Porosity	%	23	18
Flexural strength	MPa(25ºC)	50	60
Thermal conductivity	W/m    · ºC	14-19	14-19
	(1000ºC)
Specific heat	kj/kg    · ºC	1	1
	(25~ 1300ºC)
Coefficient of thermal expansion	(1000ºC)×10-6	4.5	4.5

 

Atmosphere	The impact on components	terms of settlement	Recommended coating
Water vapor and moisture	Shorten service life by about 20% compared to dry atmosphere.	New stove running or old stove not working for a long time .When reusing, it is necessary to dry thoroughly at low temperature before use Heating up.	A coating
nitrogen	When the temperature exceeds 1400 degrees, nitrogen and silicon carbide Reaction generates silicon nitride, making the component brittle and long-lasting Shortened lifespan, affected by dew point and hydrogen gas conditions identical.	It is recommended to use the furnace temperature below 1300 degrees Celsius and minimize the surface load as much as possible.	B coating
hydrogen	After the component rises to 1350 degrees, the resistance increases rapidly and the mechanical strength decreases. Moreover, the lifespan also varies greatly depending on the dry and wet gas conditions.	It is recommended to use the furnace temperature below 1300 degrees Celsius, with a surface load of less than 5W/CM ².	C coating
ammonia	Same situation as hydrogen and nitrogen.	Suggest using the furnace temperature below 1300 degrees Celsius, with a surface load of less than 5W/CM.	B coating C coating
Decompose gas	During the heating process, decomposed carbon black adheres to the surface of the component, causing the rod to become loose.	Regularly deliver air into the furnace to burn excess carbon. In terms of furnace construction, maintain sufficient spacing between heating elements to prevent short circuits.
sulfur	After the temperature of the component rises to 1300 degrees, the surface of the component is corroded and the resistance increases sharply.	Control the temperature of the components below 1300 degrees Celsius.
vacuum	Silicon dioxide protective film cannot be generated in high vacuum, and silicon carbide decomposes on its own, shortening its lifespan.	Used at pressures above 0.13Pa and furnace temperatures below 1100 degrees Celsius.
other	Various substances produced by the processed material, such as lead, antimony, and alkali metal compounds, react with components to shorten their lifespan.	Remove these substances from the processed material in advance and install exhaust ports inside the furnace to reduce their impact.	D coating

Product model:Type SGR

diameter mm	Rated load (tested at 1000ºC)
	Heating part		cold end
	Ω/mm	W/mm	Ω/mm	W/mm
16	0.03153	7.54	0.00791	1.40
18	0.02158	8.48	0.00430	1.50
20	0.02302	9.42	0.00384	1.60
25	0.01969	11.78	0.00328	1.75
30	0.01523	14.13	0.00190	1.75
32	0.01341	14.93	0.00152	1.85
35	0.01224	16.49	0.00150	2.00
38	0.01103	17.95	0.00116	2.00
40	0.00905	18.84	0.00100	2.10
45	0.00960	20.91	0.00079	2.10
50	0.00953	23.55	0.00075	2.20
54	0.00636	25.43	0.00073	2.30

Company Profile

 

  

How to order

When placing an order, please inform us of the following data:
1. Choose the shape you need, such as GC, N, GD, U, GDS, GQ, H, GG, SG, SD, etc. two
Outer diameter: OD, mm
3. Heating zone length: HZ, mm
4. Total length: OL, mm
5. The resistor you need.
Order sample: GD type, OD30mm,HZ300mm,OL800mm, Resistance of 1.4 ohms.

Installation Instructions

Notice for using and installing SIC heater:
1. Be protected against damp during storing or installing to ensure the performance ;
2. Divided before assembling. The tolerance of the resistance of each one cannot exceed by 10% each other;
3. Be careful when using and maintaining;
4. When operating the electric furnace at the beginning, the voltage should be increased slowly and cannot be fully loaded at once. Otherwise the larger current will be resulted in the damage of heater. 
5. When heater is damaged and need to be changed, the resistance of new ne should follow the increasing resistance. If many are damaged or resistance increased too much, heater should be changed.

 

Packaging & Shipping

FAQ

1. Q: Where is your company located? How can I visit there?
    A: Our factory is located in Zhengzhou, China.

2. Q: Can I get a sample and how long will it take?
    A: Sorry, we do not provide samples.

3. Q: What is the minimum order quantity?
    A: Our minimum order quantity is 1 piece.

4. Q: Can I have my own customized product?
    A: Yes. Your customization requirements for logos, designs, packaging, language manuals, etc. We warmly welcome it.

5. Q: What is the delivery time?
     A: It takes approximately 10-15 days to complete the order. But the specific time depends on the actual situation.  
6. Q: What are the payment terms?
    A: T/T, L/C, etc. (Contact customer service)

7.Q: How does your factory conduct quality control?
   A: We attach great importance to quality control. Each part of our product has its own quality control center.

8. Q: How do you establish a long-term and good relationship with our business?
    A: We maintain good quality and competitive prices to ensure that our customers benefit; We respect every customer, just like our friends, and sincerely do business and make friends with them, no matter where they come from.