The Advantages of Die Casting

       Die casting is an efficient, economical process offering a broader range of shapes and components than any other manufacturing technique. Parts have long service life and may be designed to complement the visual appeal of the surrounding part. Designers can gain a number of advantages and benefits by specifying die casting machine parts.
       High-speed production – Die casting provides complex shapes within closer tolerances than many other mass production processes. Little or no machining is required and thousands of identical al die castings can be produced before additional tooling is required.
       Dimensional accuracy and stability – Die casting produces parts that are durable and dimensionally stable, while maintaining close tolerances. They are also heat resistant.
       Strength and weight – Die cast parts are stronger than plastic injection moldings having the same dimensions. Thin wall castings are stronger and lighter than those possible with other casting methods. Plus, because die castings do not consist of separate parts welded or fastened together, the strength is that of the alloy rather than the joining process al die casting.
       Multiple finishing techniques – Die cast parts can be produced with smooth or textured surfaces, and they are easily plated or finished with a minimum of surface preparation.
       Simplified Assembly – Die castings provide integral fastening elements, such as bosses and studs. Holes can be cored and made to tap drill sizes, or external threads can be cast.
       Die casting is an efficient, economical process offering a broader range of shapes and components than any other manufacturing technique. Parts have long service life and may be designed to complement the visual appeal of the surrounding part. Designers can gain a number of advantages and benefits by specifying die cast parts.
       High-speed production – Die casting provides complex shapes within closer tolerances than many other mass production processes. Little or no machining is required and thousands of identical al die castings can be produced before additional tooling is required.
       Dimensional accuracy and stability – Die casting produces parts that are durable and dimensionally stable, while maintaining close tolerances. They are also heat resistant.
       Strength and weight – Die cast parts are stronger than plastic injection moldings having the same dimensions. Thin wall castings are stronger and lighter than those possible with other casting methods. Plus, because die castings do not consist of separate parts welded or fastened together, the strength is that of the alloy rather than the joining process al die casting.
       Multiple finishing techniques – Die cast parts can be produced with smooth or textured surfaces, and they are easily plated or finished with a minimum of surface preparation.
       Simplified Assembly – Die castings provide integral fastening elements, such as bosses and studs. Holes can be cored and made to tap drill sizes, or external threads can be cast.

 

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Construction of Die Casting Machine

Construction of Die Casting Machine  basic forms of the overall construction includes die locking construction, injection construction, hydraulic driving componenets, and electronic control system.
These four parts are installed on the horizontal machine body.

Nowadays, manufactures are perfer welding machine body. The body steel must be good quality because it will influence the die locking construction and injection function.
If the steel is not good, there are many troubles for the goods die casting.
1. If the direct parts of the body lose precision because of the bad steel quality, the decompressing parts of the die locking parts won’t working so as to wear down the sleeve and guide bar.
2. And then the die casting machine cannot keep precision to result in bad mould condition.
3. At last, the concentricity will be destroyed.

Die locking parts and injection parts are commonly installed on the same body. It is simple for users to install the machine and keep concentricity between injection parts and chamber.
But the die locking parts and injection parts are separated on the differnet bodies on the huge die casting machine. It because manufactures consider the machine body production technique.

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Metal Die Casting

Each of the metal alloys available for die casting machine offer particular advantages for the completed part .al die casting.

Zinc – The easiest alloy to cast, it offers high ductility,zinc die casting high impact strength and is easily plated. Zinc is economical for small parts, has a low melting point and promotes long die life.

Aluminum – This alloy is lightweight, while possessing high dimensional stability for complex shapes and thin walls. Aluminum has good corrosion resistance and mechanical properties, high thermal and electrical conductivity, as well as strength at high temperatures.Aluminum die casting

Magnesium – The easiest alloy to machine, magnesium has an excellent strength-to-weight ratio and is the lightest alloy commonly die cast.

Copper – This alloy possesses high hardness, high corrosion resistance and the highest mechanical properties of alloys cast. It offers excellent wear resistance and dimensional stability, with strength approaching that of steel parts.die casting

Lead and Tin – These alloys offer high density and are capable of producing parts with extremely close dimensions. They are also used for special forms of corrosion resistance.al die casting.

 

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Die Casting Process

The basic die casting machine consists of injecting molten metal under high pressure into a steel mold called a die. Die casting machines are typically rated in clamping tons equal to the amount of pressure they can exert on the die. Machine sizes range from 400 tons to 4000 tons. Regardless of their size, the only fundamental difference in die casting machines is the method used to inject molten metal into a die. The two methods are hot chamber or cold chamber. A complete die casting cycle can vary from less than one second for small components weighing less than an ounce, to two-to-three minutes for a casting of several pounds, making die casting the fastest technique available for producing precise non-ferrous metal parts.

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J215A TYPE 580KN HOT CHAMBER DIE CASTING MACHINE

The machine is suitable for die casting of non-ferrous metal with low melting point, such as Zn.Pb and its alloy. It is widely applied for die casting of fittings of automobile and motorcycle. and parts for instrument and meter, and household appliance hardware of daily necessities.

The machine is convenient and time-saving and effortless in operation and maintenance. The process parameter of die casting can be designated through programming controller.

The trouble location and adjust of machine are remote controlled, via communication net.

The machine is equipped with electronics and hydraulic pressed parts of import. The machine it is controlled by program which is stable and reliable.

The project The unit J215A
Die locking force kN 580
Stroke of moving platen mm 200
Inner space between the bars (H x V) mm 311×311
Thickness of die block (Min./Max) mm 120/320
Injection force kN 60
Injection stroke mm 130
Injection position mm 0, -50
Ejection force kN 50
Ejection stroke mm 60
Diameter of shot sleeve mm 50
Max. Projecting area of casting cm2 189
Working pressure of vane pump MPa 11.5
Motor power kW 9.5
Dosage of fluid metalPershot(Zinc) kg 1.3
Effective volume of crucible(Zinc) kg 160
Oil consumption of burner kg/h 1.5~6.0
Volume of oil tank L 310
Machine weight kg 3500
Overall dimensions (L x W x H) mm 3600x1500x2000
J215A TYPE 580KN HOT CHAMBER DIE CASTING MACHINE
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Zinc Hardware and Die Casting Machines

Casting equipment using zinc and metal dies exhibits huge capital costs; these tend to limit high volume productions. The production of parts through zinc die-casting is relatively simple enough in terms of the operation, which is divided in four types as this keeps incremental costs per item at a low. It is best suited in large quantity manufacture of small and medium-sized diecastings because of the significant savings that will be gained out of it. This is probably the main reason why die-casting is more feasible these days compared to other casting processes.
 
Hot-chamber die casting machines are also referred to as “gooseneck machines.” Its operation relies on molten metal. During the beginning cycles, the machine’s cylinder will be retracted, allowing molten zinc to fill it all up. The hydraulically powered piston will force the zinc out of the gooseneck and into the die. What this particular die casting machine does best is the fast cycle times reported at an average of fifteen cycles in a minute, which makes for an efficient and convenient melting of zinc in the die casting machine 
While the good stuff about the machine brings efficiency and potential savings at whole new levels, its drawbacks are among the issues worth noting. One particular disadvantage of the hot chamber system is that it cannot accommodate metals with high-melting points. DieCastingZinc however is an exception, and this is where zinc hardware in die-casting parts proves more feasible compared to its counterparts in the industry.
 
Cold chamber machines on the other hand are called into action when the casting alloys used cannot be accommodated in hot chamber machines. Such metal alloys include zinc alloys with a great part of aluminum, aluminum itself, copper and magnesium. The casting process start with molten metal created in separate furnaces. Calculated amounts of molten metal are transported directly to the cold chamber machine, and will be injected into the slot chambers (injection cylinders), which by the way, should not be heated. The shot will be driven all the way into the die via mechanical or hydraulic pistons. 
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BULL-250L Auto Ladler

MAIN CHARACTER

1) Adopt four links construction and turbaned worm drive to ensure reliable system.
2) Adopt import transducer to control the speed to ensure stable system.
3) PLC control and promote alarm function.
4) Import double encoder to control the ladler and dosage.
5) Automatically running.

Specification
1. Suitable die casting machine: 160ton-250ton.
2. Dosage: 0.5-2.0
3. Precision of dosage: ±2%
4. Materials convey time (from furnace): 2.5sec
5. Crucible inner diameter: Min.400mm
6. Furnace thinkness: Min.400mm
7. Depth of getting materials: 350mm
8. Arms motor power: 1500W4P
9. Ladle motor power: 750W4P
10. Motor voltage: 380V, 3ph, 50HzIt is can be adjusted according your requirement.
11. Operation motor voltage: DC24V
12. Powder capacity: 2.5KVA

BULL-250L Auto Ladler
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J214 TYPE 500KN HOT CHAMBER DIE CASTING MACHINE

The machine is applicable to die casting of non-ferrous metals with low melting point such as Zn (Zinc) and Pb (Plumbum). It is widely used in various industries including automobile and motorcycle parts, meters and instruments, daily-use hardware, and household appliances.

The machine is controlled by industrial level microcomputer. The die casting process parameters can be set up through the person-machine interface and import proportional oveflow valve ensure easy operation of parameter and program setup.The injection system uses large-caliber logic, ensuring die-casting parts have high quality. The machine has remote machine control and trouble locating functions.

The machine is equipped with impored electronic and hydraulic parts, ensuring a reliable and safe whole-machine performance, it is anadvanced type of die casting machine within our country at present. 
 

The project The unit J214
Die locking force kN 500
Stroke of moving platen mm 210
Inner space between the bars (H x V) mm 290×290
Thickness of die block (Min./Max) mm 120/320
Injection force kN 50
Injection stroke mm 110
Injection position mm 0, -40
Ejection force kN 50
Ejection stroke mm 50
Diameter of shot sleeve mm 45
Max. Projecting area of casting cm2 159
Working pressure of vane pump MPa 10.5
Motor power kW 9.5
Dosage of fluid metalPershot(Zinc) kg 1.1
Effective volume of crucible(Zinc) kg 160
Oil consumption of burner kg/h 1.5~6.0
Volume of oil tank L 320
Machine weight kg 3500
Overall dimensions (L x W x H) mm 3500x1450x2100
J214 TYPE 500KN HOT CHAMBER DIE CASTING MACHINE
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J1118K TYPE 1800KN COLD CHAMBER DIE CASTING MACHINE

The machine is widely used for mass production of foundry goods from nonferrous metals such as aluminum, zinc and copper in various industries including automobiles, motorcycles, meters and instruments, household appliances, and daily-use hardware.

The machine is equipped with programmable logic controller(PLC)and graphic operating terminal (person-machine interface) that are imported from Japan. The simple operating interface and proportional relief and flow control valves ensure easy operation of parameter and program setup.Die locking adopts crank expanding structure, 4-rod pilot elastic framework and has excellent rigidity. Advanced double-loop and 4-step hydraulic injecting system that is constant and effective; maximum injection rate over 6m/s and minimum boosting time less than 20ms. The machine is superior in performance, and offers reliable and smooth operations. It owns trouble diagnosis and shooting function, and represents the leading technology in China. 
 

The project The unit J1118K
Die locking force kN 1800
Size of moving platen(HxV) mm 720X719
Inner space between the bars (H x V) mm 480X480
Thickness of die block (Min./Max) mm 200/580
Stroke of moving platen mm 385
Ejection stroke mm 85
Ejection force kN 109
Injection force kN 230
Injection stroke mm 350
Injection position mm 0,-70,-140
Diameter of shot sleeve mm 50 60
Dosage of fluid metal per shot (AL) kg 1.3 1.9
Injection Pressure MPa 117 81.3
Max.Projecting area of casting cm2 221
Dry cycle s 7
Pipeline pressure MPa 13
Motor power kW 15
Machine weight kg 7000
Overall dimensions (L x W x H) mm 5600X1280X2560
J1118K TYPE 1800KN COLD CHAMBER DIE CASTING MACHINE
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J2118 TYPE 1800KN HOT CHAMBER DIE CASTING MACHINE

  • Detailed Product Description:  J2118 TYPE 1800KN HOT CHAMBER DIE CASTING MACHINE
J2118 could process low melting point metal colored alloy of zinc and lead, which are widely used in automobile and motorcycle parts, instruments, household hardware and home appliances industry.

There’re three kinds of driving modes as manual, single circulating and automatic circulating. The operator could manage several machines simultaneously under automatic mode.

This is an effective machine which could send up 3.5 Kg of zinc alloy per cycle.

J2118 is equipped with electronics and hydraulic pressed parts of high grade. The machine is controlled by program which is stable and reliable.

The project The unit J2118
Die locking force kN 1900
Stroke of moving platen mm 350
Inner space between the bars (H x V) mm 480×450
Thickness of die block (Min./Max) mm 200/550
Injection force kN 100
Injection stroke mm 160
Injection position mm 0, -80
Ejection force kN 100
Ejection stroke mm 80
Diameter of shot sleeve mm 65
70
Max. Projecting area of casting cm2 617
Working pressure of vane pump MPa 12
Motor power kW 11
Dosage of fluid metalPershot(Zinc) kg 2.5 (3.5)
Effective volume of crucible(Zinc) kg 450
Oil consumption of burner kg/h 1.5~9
Volume of oil tank L 500
Machine weight kg 5800
Overall dimensions (L x W x H) mm 4550x1660x2280
J2118 TYPE 1800KN HOT CHAMBER DIE CASTING MACHINE
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