该页无缩略图
SiCrod
Henan Qixiang New Materials Co., Ltd.
COMPANYPROFILE
Henan Qixiang New Materials Co., Ltd.is located in the Dengfeng Industrial Cluster Area at the foot of Mount Song's Shaolin Temple.The company specializes in the production of silicon carbide (SiC) heating elements. By introducing German production equipment and utilizing European technology, and through cooperative R&D with numerous scientific research institutions,the company has improved and optimized its manufacturing processes,reduced costs,and greatly enhanced product quality,earning consistent praise from customers both domestically and internationally.With a "customer first,service supreme"philosophy,we welcome both newand existing customers to discuss cooperation with us.
SILICONCARBID HATING ELEMETNS
ProductOverview
Highpuritybdstrusiooddtfulycaldatmpauesmbdittidbt structuretissupfoaeddifbdiddrodddiot ends aluminum-sprayed and an optional surface coating.
Product Features
\mathbf { \nabla } * \mathbf { \varepsilon } Optimized silicon carbide particle structure \mathbf { \nabla } * \mathbf { \varepsilon } Thorough high-temperature recrystallization （204号 \mathbf { \nabla } * \mathbf { \varepsilon } Superior performance and extended service life
Physical Properties
| Characteristics Items | Unit | Type | |
| SHSL/SU/SM | SG/SGR | ||
| Pretension DensityBulk | 3.2 | 3.1 | |
| Bulk Density | 2.5 | 2.8 | |
| Apparent Porosity | % | 23 | 5 |
| Bending Strength | MPa at 25°C | 50 | 98 |
| Specific Heat | kj/kg+C at 25°C-1300°C | 1.0 | 1.0 |
| Heat Conductivity | W/m+Cat 1000°℃ | 14-19 | 16-21 |
| Nominal Resistance | Ω cm at 1000C | 0.080.1 | 0.016 |
| Coefficientof Thermal Expansion | 1000°C(X10-6/°C) | 4.5 | 4.5 |
Electrical Properties
Relationship Curve Between Silicon Carbide Rod Surface Load, Rod Temperature, and Furnace Temperature.
Electrical Properties
Allslconcarblideelementsareagingoverthetimewhichmeansthattheresistancewilniseupduringusedependingofollowing tactor
Element loading (W/cm2)
Operating temperature
Processatmosphere
Continuous or intermittent operation
operation procedures
| Atmosphere | Effects | Countermeasures | Recommended coating |
| Water vsture. | Theiservice lfeiseducedyonefthcomparedto | Fora new furnace during trial operation,or an old furnace tathaesuteltete before raising the temperature when restarting. | U-type coating |
| Hydrogen | Afterthetemperatureofthesiliconcarbiderod risesto1350°C,it'selectricalresistanceincreases rapidlyand itsmechanical strengthalsodecreases. Moreover,theservice lifevariessignificantly dependingonthedrynessormoisturecontentof the atmosphere. | Itisrecommendedtooperateatafurnace temperature below13o0°C.Thesurface loadshouldbekeptaslowas possible (≤5 W/cm²). | S-type coating |
| Nitrogen | When the temperature exceeds 1400°C, nitrogen shortens its service life.The effect of the dew point is possible. similar to that in the case of hydrogen. | reacts with silicon carbide to form silicon nitride，It is recommended to operate at a furnace temperature which makes the silicon carbide rod brittle and below 1300oC.The surface load should be kept as low as | N-type coating |
| Nmon m(H, gas) | Similar to the case of hydrogenand nitrogen. | s-type coating | |
| Dissociated reaction gas （N,CO,CO, H2,and CH4). | blackadheres to the surface of thesiliconcarbide rod,causing the rod body to become loose and porous. | Duringthe heating process,decomposedcarbon Fregunentlyumply. i intmthe furnace toalomainctas sufficient spacing between the silicon carbide rods to prevent shortcircuits. | |
| Sulfur (S, SO2) | |||
| Vacuum | IigneciUsaprssrebur on its own,resulting ina shortened service life. | temperature below 1100C. | |
| Others | carbiderod,shorteningitsservicelife. | Removeen furnacetomitigatetheireffects. | S-ype coating |
MANUFACTURINGPROCESS
| Model | DH |
| Diameter | OD |
| Heating zone length | HZ |
| Cold end length | CZ |
| Overall length | OL |
| Maximum operating temperature | 1520°℃ |
UX-type silicon carbide rod
| Model | SGR |
| Diameter | OD |
| Heating zone length | HZ |
| Cold end length | CZ |
| Overall length | OL |
| Maximum operating temperature | 1650°℃ |
U-type silicon carbide rod
W-type silicon carbide rod
| Model | W | Overall length | OL |
| Diameter | OD | Spacing | A |
| Heating zone length | HZ | Cross-section | D |
| Cold end length | CZ | Maximum operating temperature | 1520°C |
| Silicon carbide rod diameter (mm) | Rated current (A) | Width (mm) | Aperture (mm) |
| 13 | 25 | 13 | 7 |
| 1619 | 50 | 17 | 10 |
| 2523 | 100 | 33 | 14 |
| 35484454 | 200 | 33 | 14 |
| 70 | 400 | 35 | 18 |
| Silicon carbide rod diameter(mm) | Type | Width(mm) | Ratedcurrent | Aperture(mm) | Silicon carbide rod diameter(mm) | Type | Width (mm)|Rated current|Aperture(mm) | ||
| 13 | D-13 | 24 | 50 | 10 | 38 | D-38 | 51 | 200 | 14 |
| 16 | D-16 | 24 | 50 | 10 | 44 | D-44 | 51 | 200 | 14 |
| 19 | D-19 | 24 | 75 | 10 | 50 | D-50 | 51 | 200 | 14 |
| 25 | D-25 | 24 | 100 | 14 | 54 | D-54 | 51 | 200 | 14 |
| 28 | D-28 | 24 | 75 | 10 | 64 | D-64 | 51 | 200 | 14 |
| 32 | D-32 | 24 | 100 | 14 | 70 | D-70 | 51 | 200 | 14 |
| 35 | D-35 | 51 | 200 | 14 | 76 | D-76 | 51 | 200 | 14 |
| Siliconcarbide roddiameter (mm) | M-type clamp | T-type clamp | |||||
| Type | Innerdiameter | Width | Spacing | Type | Inner diameter | Width | |
| 7 | M-07 | 7 | 13 | 32 | N/A | 13 | |
| 10 | M-10 | 10 | 13 | 34 | T-10 | 11 | 13 |
| 12 | M-12 | 13 | 13 | 37 | T-12 | 13 | 13 |
| 14 | M-14 | 13 | 13 | 37 | T-14 | 13 | 13 |
| 16 | M-16 | 16 | 13 | 56 | T-16 | 16 | 13 |
| 19 | M-19 | 19 | 19 | 28 | T-19 | 19 | 19 |
| 25 | M-25 | 25 | 25 | 77 | T-25 | 25 | 25 |
| 32 | M-32 | 30 | 32 | 81 | T-32 | 30 | 32 |
| 35 | M-35 | 35 | 32 | 97 | T-35 | 35 | 32 |
| 38 | M-38 | 35 | 32 | 97 | T-38 | 35 | 32 |
| 44 | M-44 | 40 | 38 | 118 | T-44 | 40 | 38 |
| 54 | M-54 | 51 | 38 | 114 | T-54 | 51 | 38 |
| 70 | N/A | N/A | N/A | N/A | T-70 | 63 | 38 |
