The characteristic of alloy steel casting is similar to that of Carbon Steel Casting and cast steel containing alloy elements such as manganese, chromium, and copper is a cast alloy steel. China Alloy Steel Precision Casting is also called lost wax casting, or China Alloy Steel Investment Casting . Casting products are precise, complex, and close to the final shape of the parts, which can be used without processing or with little processing, so It is an advanced technology.
In wax pattern process,we mix stearic acid and paraffin wax in wax pattern making,as you know,it is better than polyethylene,and the wax deformation is small.
In
shell making,we adopt automatic sand-covering production line, which was
invented under the guidance of our general manager.The indoor temperature was
controlled by air-conditions,keeping the temperature at 24℃±1℃, which can make the castings much more
stable,the internal tissues much more well-proportioned.
In
shell hardening process,we use aluminium chloride to harden the shell.This can
make the shell so hard that it can`t be distorted,at the same time the bug
which the casting may have will be decreased.If there are letters or numbers in
it,they will be much clearer.
In
dewaxing process,about 95% of the castings suppliers adopt the original water dewaxing
technics,but we using the advanced steam dewaxing technics,which we are very
proud of.This can effectively avoid the air-hole and sand-hole,making the
casting look much nicer.
In
smelt process,we use middle frequency furnace,avoiding the emergence of the
oxide; in molten steel control part,we use Germany-imported direct reading spectrometer
machine,assuring its quality before the molten steel out of the furnace.During
this process we use ERP production and management software to get the feedback
information.
In
shell-knock out process,we have special machines,which can decrease the hitting
and knocking, easily made by manual shell knocking out.
In shot-blasting
process,we have crawler-type and hanging shot-blasting machine,with steel shot
0.5-0.8,making the products smooth.Of course,if the customer wants it look much
nicer,we also can carry out sand-blast treatment.
In
heat treatment process,we use electric furnace,and adopt double-temperature
control in order to heat the products equally.As a result, the products will
have great metallurgical structure.
Our
tolerance can reach at the grade of 5-7 according to our country`s tolerance
standard.
In machining process,we have 12 CNC machining centers
and some other machines, so we can make further machining if the customers need.
Products in alloy steel cast factory divide into Forklift Parts Investment Casting, Agricultural Machinery Parts Investment Casting, Petroleum Parts Investment Casting, and Chemical Parts Investment Casting.
Alloy Steel Investment Casting Alloy Steel Precision Casting,Alloy Steel Investment Casting,Alloy Steel Casting,Precision Cast Alloy Steel Wei fang junlong precision casting Co.,Ltd , https://www.junlongcasting.com
In case single vacuum pump is not suited for a certain process due to pumping speed orÂ
ultimate vacuum. DYK Series vacuum pumps unit consist of roots pump as booster andÂ
rotary vane pump as backing pump, the exhaust from the roots pump is connected to theÂ
suction side of the backing pump thereby giving advantage of high pumping speed atÂ
higher vacuum. The pumps unit also equips air cooling system, cooling water system,Â
vacuum valves, ventilation valves, compensator, vacuum meter etc, and highly efficient,Â
reliable and consume less power. It also can be designed and mounted on base framesÂ
ready for use, or trailer are offered to suit user's requirements. DYK unit is wildly appliedÂ
in vacuum metallurgy, vacuum drying, welding, chemical, laboratory, power station andÂ
other industrial vacuuming, especially for vacuum transformers and other electricalÂ
equipment operation.
Feature
1.Roots pump automatically runs by the start of backing pump with electrical-contactÂ
  vacuum meter.
2.The powerful rotary vane backing pumps generate the necessary backing pressureÂ
  so that the diffusion pump can always attain its full pumping speed and an ultimate vacuum
3.The pumping unit has vacuum valve at the inlet and a rough vacuum line (bypass).Â
  This makes it particularly efficient for rapid evacuation cycles.
4.The high vacuum pump unit offer outstanding energy savings, high efficient, reliable Â
  and low power consumption
Â
Technical specification
Model
DYK030
DYK070
DYK150
DYK300
DYK600
DYK1200
Capacity (L/s)
30
70
150
300
600
1200
Ultimate vacuum
5Â Pa
Stages
Single
Double stages
Pumping speed of backing pump (L/s)
30
15
30
70
70
150
Pumping speed of roots pump (L/s)
-
70
150
300
600
1200
Power (kw)
2
4
6.5
9
11
18.5
Power supply
380V 3Ph 50Hz  (or Customized )
Weight (kg)
240
480
650
960
1250
1560
Â
Dimension (mm)L
700
1000
1100
1360
1500
1700
W
500
600
650
900
1100
1150
H
1200
1180
1350
1700
1850
1950
Â
Â
Application
In case single vacuum pump is not suited for a certain process due to pumping speed orÂ
ultimate vacuum. DYK Series vacuum pumps unit consist of roots pump as booster andÂ
rotary vane pump as backing pump, the exhaust from the roots pump is connected to theÂ
suction side of the backing pump thereby giving advantage of high pumping speed atÂ
higher vacuum. The pumps unit also equips air cooling system, cooling water system,Â
vacuum valves, ventilation valves, compensator, vacuum meter etc, and highly efficient,Â
reliable and consume less power. It also can be designed and mounted on base framesÂ
ready for use, or trailer are offered to suit user's requirements. DYK unit is wildly appliedÂ
in vacuum metallurgy, vacuum drying, welding, chemical, laboratory, power station andÂ
other industrial vacuuming, especially for vacuum transformers and other electricalÂ
equipment operation.
Feature
1.Roots pump automatically runs by the start of backing pump with electrical-contactÂ
  vacuum meter.
2.The powerful rotary vane backing pumps generate the necessary backing pressureÂ
  so that the diffusion pump can always attain its full pumping speed and an ultimate vacuum
3.The pumping unit has vacuum valve at the inlet and a rough vacuum line (bypass).Â
  This makes it particularly efficient for rapid evacuation cycles.
4.The high vacuum pump unit offer outstanding energy savings, high efficient, reliable Â
  and low power consumption
Â
Technical specification
Model
DYK030
DYK070
DYK150
DYK300
DYK600
DYK1200
Capacity (L/s)
30
70
150
300
600
1200
Ultimate vacuum
5Â Pa
Stages
Single
Double stages
Pumping speed of backing pump (L/s)
30
15
30
70
70
150
Pumping speed of roots pump (L/s)
-
70
150
300
600
1200
Power (kw)
2
4
6.5
9
11
18.5
Power supply
380V 3Ph 50Hz  (or Customized )
Weight (kg)
240
480
650
960
1250
1560
Â
Dimension (mm)L
700
1000
1100
1360
1500
1700
W
500
600
650
900
1100
1150
H
1200
1180
1350
1700
1850
1950
Â
Â
Interlocked Protective Double Stages Vacuum Pump Units
Model NO.: DYK
Power Supply: 380V,50Hz(Optional)
Color: Optional
Deliver Time: 10days
Operation Training: Supply for Free
Payment Term: Tt/LC
Trademark: HLA
Transport Package: Wooden Case
Specification: ISO9001, CE, SGS
Origin: Chongqing, China
HS Code: 8421299090
Model NO.: DYK
Power Supply: 380V,50Hz(Optional)
Color: Optional
Deliver Time: 10days
Operation Training: Supply for Free
Payment Term: Tt/LC
Trademark: HLA
Transport Package: Wooden Case
Specification: ISO9001, CE, SGS
Origin: Chongqing, China
HS Code: 8421299090
Application