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Introduction
The contents of this article is everything you need to know about zinc die casting and its use.
You will learn:
What is Zinc Die Casting?
Zinc Die Casting Methods
Products Produced by Zinc Die Casting
Zinc Alloys Used for Zinc Casting
And much more …
Chapter One: What is Zinc Die Casting?
Zinc die casting is a casting process where molten zinc is injected into a die cavity made of steel that has the shape, size, and dimensions of the part or component being produced. The finished cast zinc product has all the mechanical properties of zinc and its appearance. Zinc alloys used in zinc casting are valued for their ductility, impact strength, and low melting point, which makes them ideal for casting.
The process of zinc casting is performed under low heat due to zinc’s low melting point. Prior to initiating the casting process, dies are carefully cleaned and lubricated. Several forms of zinc alloys are used including the various types of zamaks, zinc-aluminum, and zinc-copper with zamak 3 being the most widely used due to its dimensional stability and physical and mechanical properties.
Of the various metals used in casting, zinc is the easiest to cast and one of the most abundant metals on earth. It is brittle, silvery white with a blue tinge, and tarnishes when exposed to the air. Zinc die casting alloys contain 78% zinc and various quantities of lead, tin, copper, aluminum, and magnesium to achieve the necessary die casting characteristics and mechanical properties.
Zinc offers engineers design capabilities that can not be found with other alloyed metals. It allows for the use of designs that have thin walls due to its structural integrity with low material use. The bearing and wear properties of zinc make it ideal for use in the manufacture of bushings or parts with complex and intricate geometries.
Chapter Two: Zinc Die Casting Methods
All forms of die casting involve forcing molten metal into a mold under pressure to ensure the molten metal reaches every portion of the mold. The die is an inverse shape of the component being manufactured. The process of zinc die casting involves the use of zinc alloys, which are composed of zinc and other metals. Zinc is chosen as a casting option due to its versatility and excellent casting properties.
Hot Chamber Zinc Die Casting
Die
During the injection stroke, the plunger provides the driving force behind sending the molten zinc through the gooseneck and into the nozzle. At the beginning of a casting cycle, it retracts and pulls molten zinc into its cylinder. The shot cylinder is powered by a CNC machining that provides the power for the plunger’s downward stroke. As the plunger moves downward, it cuts off the flow of molten zinc into the cylinder and gooseneck.
The pressure produced by the downward movement of the plunger varies from 700 psi to 5000 psi (5 MPa to 35 MPa). The plunger sustains the pressure on the die long enough for the part or component to solidify. Instantaneous cavity pressures may go much higher due to the momentum (mass x velocity) effects of the metal filling the die cavity.
Single Die – A single die casting die produces a single component in one cycle. They are for low production runs. Single dies cost less compared to multiple dies and are easy to design.
Multiple Die – Multiple die cavity dies have several cavities in order to produce multiple parts in one cycle. The use of multiple dies reduces per unit costs and increases productivity. The machining of multiple dies is more expensive than single dies and requires the use of machines with higher tonnage.
Combination Die – A combination die has cavities for different parts making it possible to produce multiple parts for an assembly in one cycle. The use of combination dies reduces the cost of casting each of the parts individually and increases productivity.
Unit Die – Unit dies are small dies that are placed in a master die holder with the individual dies connected by runners. They are similar to single cavity dies and have both halves of a single die. Unit dies are used for small production runs for individual components.
Hot Chamber Zinc Die Casting
The parts of hot chamber zinc die casting are the furnace, gooseneck, nozzle, and the plunger or piston, which moves the hot molten zinc to the die. The stationary portion of the die is mounted on a large plate that is attached to the hot chamber die casting mechanism.
Furnace
The furnace is built into the hot chamber die casting machine. It burns fuel that melts the zinc and has an intake port that is attached to the gooseneck passage and is below the shot cylinder that contains the plunger. When the plunger is raised, molten zinc is allowed to flow through the intake port into the gooseneck.
Gooseneck
The gooseneck is a unique feature of hot chamber die casting. It links the injection system to the feed line that moves the molten zinc to the die and is immersed in the pool of molten zinc. Goosenecks are made of highly resistant materials that are capable of withstanding the exceptionally high temperature of the molten zinc. It is connected to a cylinder that contains the plunger that forces the molten zinc through the gooseneck and the nozzle into the die. Goosenecks are closely monitored for wear due to the stressful and demanding working conditions.
Nozzle
The nozzle makes it possible for the molten zinc to flow smoothly into the die halves. At the end of the casting cycle, the nozzle allows excess molten material to flow back into the furnace area.
Plunger or Piston
During the injection stroke, the plunger provides the driving force behind sending the molten zinc through the gooseneck and into the nozzle. At the beginning of a casting cycle, it retracks and pulls molten zinc into its cylinder. The shot cylinder is powered by a hydraulic motor that provides the power for the plunger’s downward stroke. As the plunger moves downward, it cuts off the flow of molten zinc into the cylinder and gooseneck.
The pressure produced by the downward movement of the plunger varies from 700 psi to 5000 psi (5 MPa to 35 MPa). The plunger sustains the pressure on the die long enough for the part or component to solidify.
Die
The fixed half of the die is attached to the cover platen while the movable or ejection half of the die is solidly pressed against it. The movable or ejection portion of the die has pins to assist in the removal of the solidified part from the die. As the die halves separate, the ejection pins push the completed part out.
Complete Hot Chamber Zinc Die Casting Process
The complete process for hot chamber zinc die casting involves hot chamber filling, injection, high pressure, and cooling, all of which are completed in a rapid, cost effective production cycle.
Chamber Filling – When the plunger moves upward, it opens the intake port to allow molten zinc to fill the cylinder and gooseneck.
Injection – At a certain point, after the chamber is full, the plunger moves downward, pushing the molten contents of the chamber up through the gooseneck and nozzle into the sealed die. The pressure produced by the movement of the plunger ensures that the molten zinc is forced into every hole, crevice, and section of the die. This aspect of the process is the reason for the popularity of zinc die casting since it ensures high tolerances for intricate and complex parts.
Pressure – The pressure applied by the plunger continues even after the die is filled in order to achieve the highest possible quality in the completed part. The amount of pressure varies in accordance with the geometric features of the part as well as its size, contours, intricacies, and dimensions.
Cooling – As the plunger, through the molten zinc, applies pressure to the die, the molten zinc cools inside the die cavity. At the end of the cooling cycle, the plunger moves back, and the ejection portion of the die ejects the completed part.
Finishing – Finishing steps can take several forms depending on the type of part and can include grinding, sanding, polishing, cleaning, filing, and cutting to achieve design tolerances. Once the physical aspects of the finishing process is completed, further, less aggressive finishing may be necessary.
Cold Chamber Zinc Die Casting
The basic difference between hot chamber zinc die casting and cold chamber die casting is the temperature of the chamber where the molten metal is introduced to the process. The process begins by pouring molten zinc into a cold shot chamber from which it is forced under pressure into the sealed movable and fixed portions of the die.
Die
The die for cold chamber die casting is manufactured using the same materials as those used for hot chamber die casting. The fixed portion of the die is connected to the shot chamber where the molten zinc is poured. All of the other characteristics of the mold are the same as is found in hot chamber die casting. Prior to the beginning of the casting process, the mold is sprayed with lubricant for easy removal of the cast part. A motor pushes the movable portion of the die against the fixed portion under pressure to ensure a tight secure connection.
Furnace
The heating furnace for cold chamber zinc die casting is not connected to the casting mechanism. The zinc metal is heated in a separate furnace, removed from the furnace using a ladle, and poured into the shot chamber of the cold chamber die casting machine.
Shot Chamber
The shot chamber is a long cylinder into which the hot molten zinc is poured through the pour hole that has a diameter that is 70% of the inner diameter of the shot chamber. The pour end of the shot chamber is the hottest part of the cold chamber mechanism and has a temperature control device. Unlike the plunger cylinder of hot chamber die casting, the cylinder or shot chamber for cold die casting is horizontal with the piston or ram on one with the opposite end connected to the fixed half of the die. The pour hole is located at the end of the shot chamber that is closest to the plunger and is where the molten zinc is poured into the chamber.
For easier processing, the shot chamber is preheated to a temperature over 400°F (204°C). The heating of the shot chamber eliminates any start-up scrap and saves time on production. Preheating the shot chamber allows for better control of the cold chamber die casting process.
Hydraulic Piston or Plunger
The operation and movement of the plunger must be smooth and straight along the length of the shot chamber without binding and have a gap between the wall and plunger of no more than 0.004 inch (0.102 mm). Shot chamber walls have an even thickness to avoid hot spots and unequal expansion. The success of cold chamber die casting is dependent on the application of even pressure by the plunger during the process.
Cold Chamber Zinc Die Casting
The process for cold chamber die casting begins with a measured amount of molten zinc that has been ladled from the furnace. The amount is correct for a single shot.
Pouring – The molten zinc is poured into the pour hole that is close to the plunger at the top of the shot chamber.
Plunger Movement – A hydraulic powered cylinder forces the plunger forward to move the molten zinc into the casting die. The pressure produced by the movement of the plunger causes the molten zinc to fill all sections of the die. As with hot chamber die casting, pressure is maintained on the die until the molten metal cools.
Ejection – When the part solidifies, the pressure from the plunger is released, the die opens, and the casting is removed by being pushed out by ejector pins.
Finishing – Regardless of the accuracy and details of the casting process, cast parts require finishing to meet necessary tolerances. The type of finishing varies in accordance with the needs of the completed part. In some cases, decorative finishes are required. The main activities of finishing include removing flash, rounding edges, and smoothing and brightening of surfaces.
Cold chamber zinc die casting can produce denser parts with better mechanical properties. The higher pressure of the process makes it possible to produce parts with thinner walls, intricate details, and complexities.
Chapter Three: Leading Zinc Die Casting Machines
Zinc die casting machines are manufactured by companies located in Asia and Europe with China and India being two prominent suppliers. Two of the notable brands are Techmire and Frech both of which have distributors in the United States and Canada. Techmire is noted for its multi-slide die casting machines, which are a unique and innovative die casting process.
Model: Urpe CC25
Manufacturer: Urpe
The Urpe CC25 is a hot chamber die casting machine designed for applications involving non-ferrous metals. The machine has an electric furnace with a 240 kg capacity that reaches temperatures of 750o C with a casting capacity of 42 kN and casting plunger stroke of 85 mm. The Urpe CC25 can be operated manually, semi-automatically, and automatically with easy access controls mounted on the machine.
Model: ZL60
Manufacturer: Frech USA
The ZL60 is a versatile zinc die casting machine suitable for various applications.
It offers a modular design, allowing customization based on specific production needs and has a powerful hydraulic system for high clamping forces and precise injection. The ZL60 features a user-friendly interface for easy operation and monitoring. It has energy-saving features and optimized cooling channels for improved efficiency.
Model: HMT1600
Manufacturer: BuhlerPrince Inc.
The HMT1600 is a robust and durable zinc die casting machine. It utilizes advanced control technology for precise and consistent casting results. This machine has a large platen size and high clamping force for handling complex molds. It offers a multi-stage injection system for enhanced shot control. Additionally, it incorporates safety features and ergonomic design for operator convenience.
Model: ZDC-2000
Manufacturer: Techmire
The ZDC-2000 is a compact and efficient zinc die casting machine. It is designed for high-speed production and optimized cycle times. This machine features a proprietary hot chamber technology for precise metal injection and offers quick tooling changeovers and minimal maintenance requirements. The ZDC-2000 also has a user-friendly control system with advanced diagnostics and troubleshooting capabilities.
Model: ZP 8
Manufacturer: Oskar Frech GmbH + Co. KG
The ZP 8 is a high-performance zinc die casting machine suitable for large-scale production. It offers modular construction for flexibility and easy customization. The ZP 8 incorporates energy-efficient servo technology for precise control. It features an integrated spraying system for die lubrication and cooling. It also possesses a comprehensive monitoring system for process optimization and fault detection.
Please note that specific model availability and features may vary over time, so it is advisable to contact the manufacturers or their authorized distributors to get the most up-to-date information on the models that suit your requirements.
Chapter Four: Types of Zinc Used in Zinc Die Casting
Zinc alloys used for zinc die casting have a percentage of other metals such as aluminum, magnesium, copper, iron, and tin that change and enhance the properties of zinc. The choice of alloy for casting is dependent on the desired properties and characteristics of the cast part since each of the alloys has unique traits. Zinc die casting manufacturers normally offer a selection of zinc alloys with descriptive details. The choice of which alloy to use is dependent on the application for which the part is being cast.
The list of zinc alloys is long and covers a wide range of metals from ones used for soldering and coating to ones used for die casting. Additionally, the types of metals used as alloys vary according to the amount that is alloyed and the type of metal. Zinc alloys are classified by their composition, processing method, performance, and use.
Zinc alloys have a high melting point, corrosion resistance, a superior strength to weight ratio, low cost, and are non-magnetic. They are stronger than carbon steel, especially in regard to shear strength. Zinc alloys are ideal for structural support and load bearing in medical equipment and computers.
Zamak 2
Zamak 2, also known as Kirksite, is the strongest and hardest of the Zamak family of alloys due to its high copper content (3%). Zamak alloys are zinc aluminum alloys that have a 4% aluminum content. The term zamak originated in Germany and is an acronym for zinc, aluminum, magnesium, and Kupfer (the German word for copper). Zamak 2 has excellent castability and resistance to creeping with a melting point at 2615°F to 2635°F (1435°C to 1446°C) and a Brinell hardness of 100.
Zamak 3
Zamak 3 is the most widely used for zinc die casting due to its castability and long-term dimensional stability. It can be easily plated, coated, and chromate treated. As with all of the zamak alloys, zamak 3 contains percentages of aluminum, copper, magnesium, lead, cadmium, and tin. Zamak 3 has a hardness of 82 on the Brinell hardness scale with tensile strength of 283 MPa and yield strength of 221 MPa. The wide use of zamak 3 in die casting is due to its exceptional strength and ductility.
Zamak 5
Zamak 5 is the most used zinc alloy in Europe and has a higher copper content than Zamak 3, which makes it less ductile, a factor that makes it difficult to bend, shape, and crip after being cast. The addition of 1% more copper in Zamak 5 increases its corrosive resistance, hardness, and strength. It can easily be plated, polished, finished, and machined and has a melting point of 380°C up to 386°C (717°F up to 727°F). Zamak 5 is one of the most used zinc alloys in the world due to its exceptional strength and is used to produce wheel balancing weights, automotive engine parts, and die cast toys.
ZA 8
ZA 8 is distinguished from the zamak alloys by the amount of aluminum that it contains, which is about 8.4%. It is the only zinc alloy that can be hot die cast due to its exceptional tensile strength, hardness, and creep resistance. Aside from its aluminum content, ZA 8 has small traces of magnesium and copper that make ZA 8 the lowest density zinc die casting alloy.
ACuZinc5
ACuZinc5 has a copper content of 5% to 6% with an aluminum content of 2.8% to 3.3%. The copper content of ACuZinc5 is much higher than that of Zamak 3, Zamak 5, and ZA 8 while the aluminum content is much lower. As is typical of zinc with a higher copper content, ACuZinc5 has increased tensile strength and creep resistance with a Brinell hardness of 118. Additionally, the increased copper content makes ACuZinc5 able to resist wear as well as bronze and aluminum alloys.
EZAC
EZAC is a proprietary zinc alloy that has a unique combination of zinc, copper, and aluminum, which gives it superior strength, hardness, and creep resistance over time. Die cast components can deform over time due to stress and high temperatures, a process that is known as creep. Zinc has exceptional creep resistance, which is one of the reasons that it is so widely used for die casting.
A major factor in the development of EZAC was the need to create a zinc alloy that had superior mechanical properties especially in regard to creep resistance. After years of research and development, engineers introduced EZAC as the answer to problems involving creeping. EZAC is able to maintain its dimensional stability at 212°F (100°C), a characteristic that makes it ideal for hot chamber zinc die casting.
ZA-12
ZA-12 is commonly known as a gravity casting alloy but is used for cold chamber casting when increased strength and endurance is required. It has a tensile strength of 276 MPa to 317 MPa with a yield strength of 214 MPa. The durability of ZA-12 makes it the right choice for parts and components that have thin walls. As with several of the more substantial zinc alloys, ZA-12 has excellent strength, hardness, creep properties, and dimensional stability. With all of the ZA series of zinc alloys, the number in the alloy represents the percentage of aluminum concentration with ZA-12 having 12% aluminum content.
GDSL – Guss Druck Sonderlegierung
GDSL is a super thin zinc alloy with increased amounts of copper and aluminum. Its structure is based on the zamak alloys with exceptional castability. GDSL is referred to as the ultra-thin casting alloy with exceptional fluidity characteristics that are similar to high fluidity alloys. It is capable of casting parts with wall thicknesses of 0.3 mm (0.012 inch). Known as the superloy, GDSL has superior strength, elongation, and creep strength. It requires less injection pressure and plunger speed for hot chamber casting.
Leading Manufacturers and Suppliers
Chapter Five: Components and Parts Made from Zinc Alloys
Zinc is used for complex and intricate shapes that require thin walls with exceptional electrical performance and shielding properties. It is ideal for the casting process where details and dimensional tolerances are a necessity. Zinc is the fourth most used metal in the world after iron, aluminum, and copper. The process of zinc die casting is popular for the production of parts for construction and industrial use. The most common use of zinc is found in the automobile industry, which is the industry where the modern process of die casting got its start.
Automobile Parts
Hot chamber zinc die casting is a high productivity manufacturing process that is widely used in the production of automotive parts. It is a time and resource saving method that rapidly produces high quality parts with extraordinary tolerances. In auto production, zinc die casting is chosen over aluminum die casting due to zinc’s lower manufacturing costs and tool life.
Automotive parts produced using die casting:
Gears and Pulleys:Gears and pulleys for seat belts are made of die cast zinc due to its durability, hardness, and mechanical strength.
Door Locks: A common use of zinc in many industries is as door locks due to its strength.
Enclosures: Zinc alloys are used in automobiles as enclosures for airbags and electrical components due to zinc’s surface quality and electrical conductivity.
Rearview Mirrors: Zinc die casting is used to manufacture the frames for rearview mirrors.
Sunroof: Sunroofs are exposed to the elements and require protection against rust and corrosion, which is the reason they are made from die cast zinc.
Windshield Wipers: As with sunroofs, windshield wipers have regular contact with moisture, humidity, and water, which necessitates that they be made of corrosion resistant material, such as zinc alloys.
Stress Bearing Parts: Zinc die casting is used to produce chassis parts, brackets, and transmission parts where strength and hardness are required for high stress loads.
Medical Instruments
The selection of zinc casting for medical instruments is built on the principles of meeting clinical needs, limiting human errors, and ensuring the safety of patients. Medical instruments are required to be biocompatible, hygienic, and antimicrobial with the ability to withstand the rigors of constant cleaning and disinfecting without dimensioning their functionality.
The hardness, self-lubricating properties, dimensional stability, and high modulus makes zinc the ideal metal for highly sensitive medical devices. Additionally, the ever-growing demand for medical instruments necessitates the addition of intricate details and minute changes, which can easily be added with zinc die casting.
Modern medical instruments have highly sensitive electronics for taking readings and collecting patient data. EMI interference and RFI interference can adversely affect readings. The shielding properties of zinc protects such medical devices to ensure proper performance.
Zinc Alloy Locks
The use of zinc alloys for the manufacturing of locks is due to its castability, ability to create complex shapes, thin walls, and exceptionally smooth surfaces. The price of materials for casting locks is low, which makes their selling price lower than other metals. Zinc locks can be produced in a wide variety of shapes to fit the needs of diverse and unique applications.
Electronics
Zinc die castings are used as shielding against electromagnetic fields and assists in dampening vibrations, properties that are necessary for the protection of electronic components. Since zinc can be cast in multiple shapes, it can be produced to conform to the needs of any electrical application.
Heat Sinks
Zinc die cast heat sinks are used over aluminum heat sinks due to zinc die casting’s ability to produce complex and intricate shapes. The fins of zinc heat sinks can be part of the frame, housing or enclosure of the heat sink, which eliminates unnecessary thermal resistance. Additionally, as with many zinc components, zinc heat sinks have dimensional stability and provide EMI and RFI protection. Although they are heavier than aluminum heat sinks, they have an attractive high-quality appearance. An important aspect of choosing zinc for the manufacture of heat sinks is their lower cost.
Customized Zinc Die Castings
The flexibility of zinc makes it possible to configure, shape, and engineer it to fit the needs of a wide variety of designs. Prior to making the decision to use zinc die casting for a custom design, it is important to examine certain factors to make the process successful. The first decision is in regard to the type of zinc alloy that best fits the needs of the application. This aspect of the process is best discussed with professionals in the field of zinc die casting.
As a part of the selection of zinc alloys, the die casting process will be chosen based on the type of alloy that best fits the process with some alloys more applicable to hot chamber die casting while others fit into cold chamber die casting. The first criteria in the selection of die casting process is the density of the zinc alloy, which can vary with the amount of copper content. The final factor is the cost of the processing, which is influenced by the cost of the zinc and the manufacturing process. In the majority of cases, zinc die casting tends to take less time, is very efficient, and makes maximum use of the available resources.
Zinc is a malleable, durable, and corrosion resistant metal alloy that can be easily shaped to fit any application. It is long lasting and does not creep over time, which makes it the perfect solution for a wide variety of projects.
Chapter Six: Zinc Die Cast Advantages
Zinc die casting is a cost effective method for manufacturing strong durable parts. The process produces parts with strength, ruggedness, rigidity, and castability at a reasonable cost. The mechanical properties of zinc die castings match or exceed those of other casting metals including aluminum, magnesium, bronze, and cast iron.
Tooling Cost
In die casting, the most significant cost is tooling for the creation of dies. The process of tooling takes hours of machining, preparation, and craftsmanship to produce dies with exactly the right shape, tolerances, and dimensional accuracy. Zinc die casting dies last ten times longer than aluminum dies and five times longer than magnesium dies due to zinc’s low melting temperature.
The cost for aluminum dies is related to the steel used to produce the dies, which is high quality, expensive H13 tool steel. The better quality steel is due to aluminum’s higher heat characteristics that requires dies to be made from heat treated H13 steel. Zinc dies are made from P20 steel that is less expensive than H13 steel and lowers the upfront cost of producing zinc dies.
The durability of zinc dies means fewer repairs, less downtime, and the production of more parts during the life of the die. A zinc die casting die can produce over one million parts during its tooling life, which dramatically reduces the cost of parts.
Strength and Rigidity
A critical factor in the die casting of parts is the sustaining of strength and rigidity, especially in the case of medical devices and instruments. Zinc die casting produces parts with the best strength to weight ratio, which makes them stronger, more resilient, longer lasting, and rigid.
Precision
Castable zinc alloys have tolerances of less than ± 0.001 inch (0.0254 mm) for small parts. The exceptionally close tolerances reduce or eliminate the need for machining. Additionally, the precision of zinc die casting makes it possible to produce designs that have thin walls with structural integrity. Wall thicknesses of 0.006 inch (0.15mm) are easily produced resulting in smaller, lighter, low cost components.
Aside from the exceptionally close tolerances, zinc die casting produces multicavity components with complex designs and shapes in volume with every part being identical with heat and wear resistance. Parts remain dimensionally stable over time without creep.
Mechanical Properties
Zinc die cast alloys have high impact strength and exceptional ductility, a feature that is important for post casting machining. In environments with extremely low temperatures, zinc die cast alloys have impact resistance that exceeds that of aluminum and magnesium die castings. Additionally, the mechanical properties of zinc include resistance to corrosion, excellent firmness, and outstanding toughness.
Conductivity
Zinc die castings can conduct heat and electricity, which makes them ideal for devices that dissipate heat, such as heat sinks. The ability of zinc die castings to have thinner walls makes it possible for heat sinks to have a variety of fins and cooling pin designs for improved heat dissipation. The electrical conductivity of zinc die castings provides EMI, RFI, and ESD shielding.
Complex Geometries
One of the most notable features of zinc die castings is their ability to produce extremely complex and intricate geometries with excellent weight bearing properties. This aspect of their design capabilities makes them suitable for the production of bushings.
Surface Finish
The surface finish of zinc die casting was one of the reasons that it was first noticed as a viable production material. The smooth aesthetically pleasing finish of zinc die castings makes them ideal for applications that require functionality and appearance. Additionally, as a result of the zinc die casting process, castings require very little machining to achieve a high quality finish.
Faster Production
The cycle rate for zinc die casting is 150% to 200% faster than aluminum due to zinc’s low melting point. With hot chamber zinc die casting, the melting and injection process are included in one mechanism, which increases efficiency and speeds up the die casting process. The high solidification rate of zinc die castings further reduces cycle time for higher productivity and significantly reduces casting costs.
Easy Assembly
With a combination or unit die, a complete assembly can be cast in one cycle for increased cost savings, reduction of labor costs, and exceptional efficiency. A complete set of individual parts can be cast and assembled in a single cycle.
Conclusion
Zinc die casting is a casting process where molten zinc is injected into a die cavity made of steel that has the shape, size, and dimensions of the part or component being produced.
The process of zinc die casting involves the use of zinc alloys, which are composed of zinc and other metals.
Zinc alloys used for zinc die casting have a percentage of other metals such as aluminum, magnesium, copper, iron, and tin that change and enhance the properties of zinc.
Zinc is used for complex and intricate shapes that require thin walls with exceptional electrical performance and shielding properties. It is ideal for the casting process where details and dimensional tolerances are a necessity.
Zinc die casting is a cost effective method for manufacturing strong durable parts. The process produces parts with strength, ruggedness, rigidity, and castability at a reasonable cost.
Leading Manufacturers and Suppliers
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