Forging die is the basis for realizing forged products. Without good and superior molds, there is no way to produce qualified products. From mold design, to mold material selection, to mold manufacturing, every step is very critical. First of all, mold design should follow good performance, excellent processing performance and certain economic performance, and at the same time, molds with good formability, reasonable life, and easy installation, debugging and maintenance should be designed. For the selection of mold materials, reasonable and economical mold materials should also be selected according to product structure, batch requirements, etc. In the process of mold processing, the mold should be processed reasonably according to the precision requirements of the product, and the heat treatment and stress should be considered. Only by making adequate preparations can a reasonable and excellent mold be manufactured.
SCZY has its own internal mold manufacturing department, from mold design, material procurement, mold manufacturing are all handled internally by us. It can better and more effectively ensure the rationality of the mold and the performance of the mold. Can better communicate and coordinate with the production department to achieve the best results.
Forging Mold Development,Precision Forging Dies,Precision Forging Tools,Precision Forging Molds Shenzhen SCZY Technology Co.,Ltd , https://www.szcasting.com
Greentech International (Zhangqiu) Co., Ltd is the professional vacuum pump supplier.
2BV series water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can reach 33mbar (ABS) (i. e. 97 % vacuum degree). If the transformer oil is used as the operating liquid, these pumps are called oil ring vacuum pump and the suction pressure can reach 6.7mbar (ABS) (i. e. 99 % vacuum degree). So the oil ring vacuum pumps can replace the reciprocated vacuum pumps completely. When the liquid ring vacuum pumps work under the condition near the limited vacuum for a long time, it is necessary to couple with the cavitation protection pipe in order to get rid of the screaming and protect the pump.
When the compressor is working, the maximum pressure is 0.26MPa (ABS). And the higher of discharge pressure, the larger of the power of the compressors. So it is necessary that the data of the discharge pressure is provided to choose the proper motor.
2BV2-Ex, 2BV6 series water ring vacuum pumps and compressors are mainly used for pumping the explosive gases or work in the flammable and explosive environment. The technical parameter of each type is the same as the corresponding type of the 2BV2 or 2BV5 series products.
2BV series stainless steel pumps can be used under the conditions with higher requirements for the corrosive-proof or the lustration.
According to the working situation, the material of all the parts where the liquid flows (i. e. Pump casing, pump cover, port plate, and impeller)are made of various stainless steel as bellow:
SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), SUS316L (00Cr17Ni14Mo2)
The material of the shaft is 2Cr13 or 0Cr18Ni12Mo2Ti
The mechanical seals are used the John Crane products and the seals material is optional for FPM or PTFE.
2BV series products possess the characteristics as bellow
· The close-coupled design is convenient to install and can save space.
· The standard seals are all used the John Crane mechanical seals.
· 2BV series products have the cavitation protection port. When they work under the condition near the limited vacuum, the cavitation protect port opens (or connects with the separator)to get rid of the screaming to protect the pump.
· Aluminum bronze impeller is of high intensity and wearing well. The erosive-proof capacity of the pump can be improved by using it. If the parts where the liquid flows are made of the stainless steel, the pumps can be used under the more rigorous condition.
· The unique design of the discharge port can protect the pump from the over-pressure to ensure the best efficient performance in the working range of the pump.
· The motors are all adopted Y2 series products. The protection class is IP54 or IP55 (normal is IP44) and the insulation grade is F.
· The bearings are all used the imported products with brand name of NTN or NSK.
Type
Suction capacity
m 3 /minLimited vacuum
mbar(MPa)Motor power
kWExplosive-proof grade of motor
Protection grade of motor
Pump Speed
r.p.mLiquid flowrate
L/minNoise
dB(A)Weight
kg
2BV2 060
0.45
33mbar
(-0.098MPa)1.1
No
IP542880
2
62
31
2BV2 061
0.86
1.5
2880
2
65
35
2BV2 070
1.33
3
2850
2.5
66
56
2BV2 071
1.83
4
2860
4.2
72
65
2BV2 060-Ex
0.45
1.1
dIIBT4
IP552880
2
62
39
2BV2 061-Ex
0.86
1.5
2880
2
65
45
2BV2 070-Ex
1.33
3
2850
2.5
66
66
2BV2 071-Ex
1.83
4
2860
4.2
72
77
2BV5 110
2.75
4
No
IP541450
6.7
63
103
2BV5 111
3.83
5.5
1450
8.3
68
117
2BV5 121
4.66
7.5
1450
10
69
149
2BV5 131
6.66
11
1430
15
73
205
2BV5 161
8.33
15
970
20
74
331
2BV6 110
2.75
4
dIIBT4
IP551450
6.7
63
153
2BV6 111
3.83
5.5
1450
8.3
68
208
2BV6 121
4.66
7.5
1450
10
69
240
2BV6 131
6.66
11
1430
15
73
320
2BV6 161
8.33
15
970
20
74
446
