The difference is that the normalizing cooling rate is slightly faster than the annealing cooling rate, so the normalizing structure is finer than the annealing structure.
Its mechanical properties have also been improved. The temperature of the mesh belt normalizing furnace is about 700-900 degrees.
The mesh belt of 310S/314 can be used. The annealing temperature is about 500-600 degrees. The mesh belt of 304/321 can be used.
The mesh belt temperature of the quenching furnace is around 900-1120 degrees. The mesh belt is preferably made of 310S and SUS314. After the workpiece is quenched, it needs to be tempered.
The tempering temperature is around 350-650. A 304 mesh belt can be selected. Tempering is about 350-650 degrees and annealing is about 500-600 degrees.
Material selection is also dependent on processing conditions, but generally those shown below are selected for continuous conveying at elevated temperatures of 600 to 1150 deg C.
25/20 AISI 314 stainless steel, Ni-Cr 37/18, Ni-Cr 37/18 Cb, Ni-Cr 80-20, Inconel 600 & 601
High temperture belt can be used for sintering,brazing,hardening,firing,tempering,lehr...It is important to select the right belt type and material which can endure elevated temperature.
Many types of the furnace conveyor belts can be made with selvages which are either welded, ladder or knuckled, but also with reinforced selvages & guard edges and if drive chains are needed.
The belt has following types: EDGE SUPPORT ONES, STAND-OFF ONES,etc.
The wire mesh belts are widely used in carbon nitriding, continuous ovens for heat treatment, hardening, normalizing, sintering and brazing, solution heat-treatment.
Typical uses, belt types and material
|
Uses |
Belt Type |
Materials |
|
Sintering |
K2W A2W A4 RRW |
SUH330. AISI314. SUS310S |
|
Brazing |
K2W A2W RR RRW A4 K2 |
SUH330. AISI314. SUS310S |
|
Hardening |
K2W A2W A4 F2 K2 |
SUS310S |
|
Heating |
K2 A4 |
NCHW1. SUS310S |
|
Tempering |
K2W A2W A4 F2 K2 |
SUS304 (SUS410) (SUS430) |
|
Lehr |
K2 k2W KF2 A4 |
SUS304. SUS410 (SUS430) (SWRM) |
Components of typical material
Material |
Chemical Components |
Max.
Operating
Temp. |
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Other |
|
SUH 330 |
≤0.15 |
≤0.50 |
≤2.00 |
≤0.040 |
≤0.030 |
33.00-37.00 |
14.00-17.00 |
|
1150 |
|
AISI 314 |
≤0.25 |
50-3.00 |
≤2.00 |
≤0.045 |
≤0.030 |
19.00-22.00 |
23.00-26.00 |
|
1150 |
|
SUS 310S |
≤0.08 |
≤0.15 |
≤2.00 |
≤0.045 |
≤0.030 |
19.00-22.00 |
24.00-26.00 |
|
1090 |
|
NCHW1 |
≤0.15 |
0.75-1.6 |
≤2.50 |
--- |
-- |
≥77.00 |
19.00-21.00 |
Fe≤1.0 |
1150 |
|
SUS 304 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
8.00-10.50 |
18.00-20.00 |
|
870 |
|
SUS 410 |
≤0.15 |
≤1.00 |
≤1.00 |
≤0.030 |
≤0.030 |
-- |
11.50-13.50 |
|
700 |
|
SUS 430 |
≤0.12 |
≤0.75 |
≤1.00 |
≤0.030 |
≤0.030 |
-- |
16.00-18.00 |
|
700 |
|
DIN 1.4841 |
≤0.2 |
1.5-2.5 |
≤2.00 |
≤0.030 |
≤0.030 |
19.0-21.00 |
24.0-26.0 |
|
1150
|
HEXIN Machinery produces various OEM wear and corrosion resistant components for the cement, lime, coal, shot blast machines,and iron Ore industries.
The castings HEXIN made generally are made from special irons and manganese steels, which are critically used in the sectiors of cement manufacturing,coal mining (surface and underground), copper smelting,crushers direct reduction of iron (DRI)
Iron ore manufacturing,Lime manufacturing. All the castings manufactured at HEXIN go through strict quality checks at all stages before being supplied to customers.
Contact Us
Tel.： 0086-532-6777 5336
Fax.： 0086-532-8898 7192
skype: zhishuai.liu Email： info@hexinmachinery.com
Office address: Rm 1402-1403, Excellence Bldg, No.128 Yanji Rd, CBD,Shibei Dist, Qingdao, Shangdong 266000, China
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