Model NO. | NX603 | Product Name | China Fine Graphite Rod Machined by Isostatic Mold |
Transport Package | Wooden Box | Specification | customized |
Trademark | NINGHEDA | Origin | China |
HS Code | 3801909000 | Production Capacity | 2000000 |
What is graphite
Rod?
There are two types of graphite rod, blank
material (unmachined graphite rod) and finished product
(machined graphite rod).
Graphite rods are often used as electric
heating elements in high-temperature vacuum furnaces. The
maximum operating temperature can reach 3000°C. It is easy
to oxidize at high temperatures, it can only be used in
neutral or reducing atmospheres and vacuum furnace. Its
thermal expansion coefficient is small, thermal
conductivity is large, resistivity is (8~13)×10-6 Ω·m,
easier to process than SiC, MoSi2 rod, high temperature
resistance, extreme cold and extreme heat resistance, good
price Cheaper.
Applications of graphite rod:
1.
Superabrasives
2. Quartz and
fused silica manufacturing
3. Fibre
optics
4.
Semiconductor production
5.Casting of
ferrous/non-ferrous metals
How to choose graphite
rod?
One:
Choose a graphite rod with good
uniformity
When it needs to appear in a vacuum
furnace as an electric heating element, it is necessary to
select the graphite rod for the uniform red heat
performance of the heating part, because the uniform red
heat performance will affect the temperature distribution
in the furnace and the service life. If in the process of
use, due to The red heat uniformity of the graphite rod
becomes worse, which will cause its
fracture.
Two: pay attention to the surface
temperature
Because of the nature of the graphite
rod itself, the higher the temperature, the shorter the
life of the graphite rod during use. Therefore, when the
surface temperature of the graphite rod exceeds a certain
temperature, the oxidation rate of the graphite rod will
increase and its life will be shortened. Therefore, we
should try not to make the surface temperature of the
graphite rod too high during
use.
Three: There should be enough voltage
adjustment
margin
When the graphite rod is heated in the
air, it will form a dense silicon oxide film on its
surface, which becomes what we often call an anti-oxidation
protective film, so when it is used intermittently, the
temperature stability in the vacuum furnace must be
ensured, so When a new graphite rod is used, the resistance
value of the graphite rod will increase at a lower
voltage.
Four: voltage after
use
When a variety of graphite rods require
a higher voltage in the later stage of use than the new
rod, we should pay attention to the voltage in the later
stage of use, and adjust it according to the way of voltage
regulation or the way of wiring. Generally, the upper limit
of the voltage in the later stage All have certain
calculated
values.
The above are the precautions for the
use of graphite rods in the vacuum furnace. More matters
will not be elaborated here. When the graphite rod needs to
be used continuously, the voltage can be increased slowly
to maintain its
life.
Company
Profile
Established in
2017, located in Fengxin Industrial Area, Yichun City,
Jiangxi Province, China, Jiangxi Ningheda New Material Co.,
Ltd. is the subsidiary company of Jiangxi Ningxin New
Material Co., Ltd.
Jiangxi Ningxin New Material Co., Ltd. is
an enterprise which specializes in R&D, production and
sale of special graphite. The total investment is RMB 180
million. It covers an area of more than 70000 square meters
and produces 10000 tons of special graphite annually, which
makes Ningxin to be the leading enterprise in the domestic
industry.
On November
8th,
2016, Ningxin was listed of Chinese new third board. The
stock abbreviation is Ningxin New Material, and stock code
is 839719.
Jiangxi Ningheda New Material Co., Ltd. is
mainly engaged in graphite product processing, graphite
product matching service, providing graphite materials,
graphite electrode and graphite products for the lithium
industry, rare earth industry, machinery industry,
aerospace, semiconductor and solar photovoltaic industry,
together with the corresponding products technical service
and technical application of update program.
With excellent
production technology, good customer service, high market
share, and relying on the advantage of new material,
capital and management of parent company (Jiangxi Ningxin
New Material Co., Ltd.), Jiangxi Ningheda New Material Co.,
Ltd. develops quickly. We devote to the extension of the
special graphite industry chain, and make contributions for
building the future whole graphite industry
strategy.
Ningheda Graphite Technical
Characteristic:
Grade | NX601 | NX602 | NX603 | NX604 | NX605 |
Grain Size (≤μm) | 25 | 25 | 25 | 25 | 25 |
Bulk Density (≥g/cm3) | 1.55 | 1.72 | 1.80 | 1.85 | 1.90 |
Compressive Strength (≥MPa) |
35 | 45 | 60 | 65 | 70 |
Flexural Strength (≥MPa) |
15 | 20 | 30 | 33 | 35 |
Porosity (≤%) | 23 | 20 | 17 | 14 | 11 |
Specific Resistance (≤μΩm) |
12 | 12 | 12 | 12 | 12 |
Ash Content (≤%) | 0.08 | 0.07 | 0.06 | 0.05 | 0.03 |
Shore Hardness | 35 | 45 | 50 | 55 | 60 |
Advantages of Ningheda graphite
raw material
1. The processing materials are ultrafine
granule structure, high purity and graphite with high
graphitization degree.
2. High hardness, good anti-oxidation performance and high
machining accuracy
3. Good conductivity, high resistivity, sufficient
mechanical strength
4. Small porosity and dense structure.
5. Excellent thermal shock resistance, conductive and
thermal conductivity.
6. High temperature resistance, corrosion resistance, acid
and alkali resistance, good wear resistance.
7. Surface can be treated with
anti-oxidation.
Why
choose graphite of Jiangxi Ningheda New Material Co.,
Ltd.?
1. Stable
quality, reasonable price, efficient communication, timely
delivery.
2. Many experts with more than 20 years of experience in
graphite industry, we not only provide graphite products,
but also provide application solutions for the
corresponding industry.
3. The companys strength and scale are in a leading
position in China, with emphasis on reputation and
worry-free after-sales.
4. The products sell well in many countries worldwide, with
rich experience in import and export, and complete various
certificates to ensure that the goods reach the customer
smoothly.
5. With professional designers, OEM and ODM are
available.
6. Fast and convenient delivery method, which can guarantee
the timeliness.
China Fine
Graphite Rod machined by isostatic molded
graphite
For more details, pls
contact Alisa!