Die Casting

Why Choose Us

Rich experience
NINGBO ETDZ HOLDINGS LTD. is founded in 1986. It is developed in the year 2000 From NINGBO ETDZ IMP & EXP CORP with its predecessor NINGBO ECONOMIC TECHNOLOGY DEVELOPMENT ZONE IMPORT & EXPORT CORP. Through the years, the company changes the style from a single import & export enterprise to a diversity trade. Industry integrated group enterprise, and covers industries such as importing and exporting business, commodity business, cross-border e-commerce trade, international bidding, etc.

Complete range of products
Equipment legs, handles, floor drain, lampshades, electrode, infrared heating tube, beer keg, knob.

Wide market
USA, EU, Brail, Mexico, Japan, 30+ export country, $20.58million Annual output.

High quality
Real manufacturer with our own factory located. Strong professional technical team ensure to produce the top quality products. Good knowledge on different market can meet special requirements.

What Is Die Casting

Die casting is a widely used permanent mould metal casting process, in which molten metal is forced into the mould called "Dies" at pressures ranging from 0.7 to 700 MPa, where it solidifies into a metal cast. Die castings, sometimes known as pressure die casting, are used in automotive housings, appliance components, and toys.

First 12 3 4 Last 1/4

The Benefits Of Using Die Casting In Your Product Design

Die casting is often used to make components for the automotive industry or decorative hardware and many other small components. In fact, die-cast parts can be found in many things, you are probably just unaware that they are made from die-cast metal.
Locks and gears are common finished products. Other examples are hooks, toys, door handles, pumps, power tool housing, golf clubs and general engineering castings.
They also make up the majority of products requiring the strength of a seamless metal part, like taps and pump handles. Other examples of die-cast products include engine fans, compressor valves and camera housings.
For electrical items, die castings can serve as secure housings and interior enclosures of computer and electronic parts.
This is in part due to the fact that die casting is an efficient, economical process that offers a broader range of shapes and components than any other manufacturing technique. Die-cast components also have a long service life and may be designed to complement the visual appeal of the product.
Product design engineers can benefit from the many advantages of specifying die-cast components as part of their next project.
Due to the flexibility and benefits of the die casting process, using it in your next product or component, decorative trim and/or finished products have many advantages:
● Components are durable, dimensionally stable.
● It can provide complex shapes within closer tolerances compared to other production methods.
● It can combine many functions into one, complex shaped part.
● High rates of production with little or no machining.
● Components can be produced with thinner walls than those obtainable by other casting methods.
● Much stronger than alternative plastic injection mouldings.
● Mass production allows thousands of identical castings within specified tolerances.

● Zinc castings can be easily plated or finished with a minimum of surface preparation.
● Smoother surfaces than most forms of casting such as sand or permanent mould.
● Holes can be cored and made to tap drill sizes.
● External threads on parts can be included in the cast.
● Include integral fastening elements, such as bosses and studs, lowering assembly costs.
● Zinc castings offer great corrosion resistance.

Die Casting Materials

Although it can cast both ferrous and nonferrous materials, not all materials are suitable for die casting because the process entails heating the material to its melting point and then pressing it into reusable moulds. As a result, the materials such as magnesium, zinc, aluminium, iron, copper, silicon, tin, and lead are more often than not utilised for die cast parts.

Aluminium
Because of the low-cost nature of aluminium, it is widely used in the die casting process. Die casting aluminium is lightweight and environmentally friendly, and it has good dimensional stability, allowing producers to produce components with thin walls and intricate geometries. Aluminium components have several uses in the aerospace, automotive, and electronics industries due to their corrosion resistance and thermal/electrical conductivity. Aluminium is alloyed with silicon and copper to avoid shrinking or shattering at high temperatures.

Zinc
Zinc die casting is a versatile production method that is ideal for items that require increased strength and ductility, high accuracy, tight tolerance, and outstanding thermal characteristics. The most common examples of zinc die casting items are gears and connectors. Zinc may need to be blended with aluminium to improve the final product's quality. Because of this metal's low melting point, zinc die-casting is ideal for hot chamber die casting. Zinc die casting components have several uses in the consumer electronics and automotive sectors.

Copper
Almost all of the items made from copper are durable. Furthermore, copper has high corrosion resistance. As a result, it is widely used to produce components for the plumbing and electrical industries.

Magnesium
Magnesium is an ideal metal for die casting when thin-structured walls and high accuracy are required. It has a high strength-to-weight ratio and is lightweight hence used widely in the aerospace industry.

Zinc alloys
Zinc alloys, such as ZA alloys and Zamak alloys, continue to be extremely easy to die-cast, and their reaction is also ideal for this process due to increased strength and castability. Zinc alloys are widely used as a decorative and practical alternative to iron and brass.

Bronze and brass alloys
Bronze and brass alloys may be die-cast almost as rapidly as zinc alloys. Bronze and brass alloys enable the producer to make durable components with better machinability, particularly in the presence of lead.
Brass alloys also offer good corrosion resistance, a low melting temperature, a low coefficient of friction, relatively high strength due to the inclusion of aluminium, and recyclability, in addition to a completely accurate internal examination.

Lead alloys
Lead alloys are used to manufacture fire-safety equipment, ornamental metal items, and bearings. Without a doubt, it is due to their capacity to withstand corrosion. They are not recommended for use in goods that come into contact with food.

Die Casting Process Steps

Die-casting is a simple modern-day process of creating high quality, consistently shaped metal parts at high volumes and can be used for aluminum, zinc, or copper alloys. The process makes use of the application of high pressure to the metal as the temperature gradually decreases. The resulting product has a consistent shape and durable structure. There are five steps in the process which are briefly explained below:
Preparation: Before the die-casting process begins, it is essential to prepare the die first. This is done by applying heat to it until it reaches a certain temperature and then covering it with refractory coating/lubricant. Once this is done, the die halves are closed and clamped together with high pressure.
Injection: Molten metal is taken from the furnace and poured directly into the die through a downward sprue. This can be performed manually or using an automated ladle.
Cooling: After the molten metal has been poured into the cast, it is then left in the clamp to cool and solidify.
Ejection: After some time, the die halves are then unclamped and the cast parts are removed very carefully. This can be done by hand or through the use of ejector pins.
Trimming: As the metal continues to cool, any scrap metal left in the process either in the runner, gate, or sprues, is removed from the casting. Various tools and machines are used to refine the shape before final dispatch.

Types of Die Casting

There are several different types of die casting, each of which has unique benefits. The two most common types of die casting are cold chamber and hot chamber.
Cold chamber die casting
In this type of die casting, the molten metal is injected into the mould cavity using a cold-chamber machine. This machine is typically used to cast metals with high melting points, such as aluminium. The main advantage of cold chamber die casting is that it can be used with various metals and reduces machine corrosion.
Hot chamber die casting
Hot chamber die casting is the most popular method and is relatively faster than cold chamber die casting. A hot-chamber machine is used to perform this process in hot chamber die casting. This machine generally uses metals with a lower melting point, such as zinc.
Both hot chamber and cold chamber die casting offer high accuracy and precision. In addition, both processes are relatively fast and cost-effective.

Top 5 Industries Benefiting From Die-casting Parts

The following are the top five industries that greatly benefit from the use of die-casting parts:

Automotive industry
The automotive industry is the largest purchaser of die-cast components. By 2026, it is projected to reach a market value of usd 58.4 billion with a compound annual growth rate (CAGR) of over 6.19%. Key components such as engine blocks made from cast iron or aluminum alloy provide the strength and efficient heat transfer required for high-performance vehicles.

Construction industry
Die-cast parts are widely used in the construction industry due to their strength and lightweight properties. Aluminum metal castings are utilized in window frames, roof superstructures, building frames, bridges, and skyscrapers. These components offer durability while reducing structural weight.

Healthcare industry
In the healthcare industry, complex medical devices rely on precise die-cast parts for performance and flexibility. Ultrasound systems, pacemakers, dialysis equipment, and medical robots require intricate components that can be efficiently produced through die-casting.

Energy sector
Die-cast components are utilized in various applications within the renewable energy sector. Piping, drilling machinery, valves, impellers for wind turbines, and brackets for solar panels are all examples of parts made through the die-casting process. These components provide strength and durability while meeting the demand for sustainable energy sources.

Electronics industry
The electronics industry extensively utilizes die-cast precision parts in products such as 5g base station housings, smartphones, drones, personal computers, and home appliances. The high precision achievable through die casting ensures reliable performance and durability in these electronic devices.

Our Factory

NINGBO ETDZ HOLDINGS LTD. is founded in 1986. It is developed in the year 2000 From NINGBO ETDZ IMP & EXP CORP with its predecessor NINGBO ECONOMIC TECHNOLOGY DEVELOPMENT ZONE IMPORT & EXPORT CORP. Through the years, the company changes the style from a single import & export enterprise to a diversity trade. Industry integrated group enterprise, and covers industries such as importing and exporting business, commodity business, cross-border e-commerce trade, international bidding, etc.
Adhering to the people-oriented, guests first principle of integrity service.
The method of doing things carefully.
Our company has also been selected as "TOP 100 Enterprises in Ningbo service industry" for several years, and has "the competence for foreign contracting projects" which are determined by national Ministry of Commerce.
The trademark of "NBETDZ" has also been selected for "Ningbo export famous brand" and "Zhejiang export famous brand", and appraised as the AEO advanced certification enterprise of the customs. Our company was awarded the title of "Example Enterprise for Trade & Logistic" in Ningbo City and has been appraised as "The Pilot Enterprise for Ningbo Foreign Trade Supply Chain Management. And our company was awarded the title of "Ningbo city in the ten largest foreign trade enterprise innovation ", "Chinese export pilot index" sample enterprises by the General Administration of Customs.
In 2019, the company cooperated deeply with domestic customers and joined hands with the fortune 500 enterprises worldwide, with a total value of imported copper concentrate of 770 million yuan. In the whole year, the company achieved a total import & export volume of 2.058 billion yuan, ranked 52nd in Ningbo foreign trade enterprises, and was once again awarded the "Ningbo Shipper association vice president unit".

productcate-1017-878

Our Certificate

ISO9001, ISO14001, ISO45001

productcate-1-1

FAQ

Q: What is the purpose of die casting?

A: Die casting is characterized by high dimensional accuracy and allows for the mass production of thin-walled products with complex shapes. Die casting also has the advantage of producing smooth casting surfaces requiring less machining after molding.

Q: What is die casting examples?

A: Other examples are hooks, toys, door handles, pumps, power tool housing, golf clubs and general engineering castings. They also make up the majority of products requiring the strength of a seamless metal part, like taps and pump handles.

Q: Is die casting strong?

A: The importance of die cast metals has rapidly increased due to their high strength, durability, stability, and cost-effectiveness. In addition, they have proved to be beneficial for tight tolerances and complex shapes.

Q: Is die casting the same as injection molding?

A: This is the main difference between die casting and injection molding processes. In die casting, the process is done with raw materials, while injection molding uses plastic and polymers.

Q: What is die casting also known as?

A: Die castings, sometimes known as pressure die casting, are used in automotive housings, appliance components, and toys. Nonferrous metals aluminium, zinc, copper, magnesium, lead, pewter, and tin-based alloys, are widely used to produce robust, high-quality complex components.

Q: What are the three types of die casting?

A: The two main types of die casting processes are hot-chamber and cold-chamber die casting. Variations on these two types of die casting include: Low-pressure die casting. Vacuum die casting.

Q: What metal is best for die casting?

A: The most commonly used metals in the process are zinc, aluminum, and magnesium. While several other options like copper, lead, brass, and tin exist, they are less common and are used only for specific projects.

Q: Is die casting easy?

A: Manufacture of parts using die casting is relatively simple, involving only four main steps, which keeps the incremental cost per item low. It is especially suited for a large quantity of small- to medium-sized castings, which is why die casting produces more castings than any other casting process.

Q: How do you explain die casting?

A: Die casting is a metal casting process that involves feeding molten nonferrous alloys into dies under high pressure and at high speed to rapidly create molded products. The main materials used in die casting are alloys of aluminum, magnesium and zinc.

Q: Is die casting safe?

A: If you are an individual in die casting process, it is relatively not a safe process, there should be more precautions that you can take to ensure your safety. Always wear the appropriate personal protective equipment and follow all the safety guidelines for your specific job site.

Q: Does die casting need a pattern?

A: The casting process can produce everything from art pieces to engine parts. The shape is determined by the mold cavity, but something needs to shape the mold—that's where the pattern comes in. Patterns are a model for the object to be cast.

Q: Does die cast metal rust?

A: Marine and atmospheric environments with salt will eventually corrode zinc die cast components. While zinc can corrode in harsh atmospheric environments, it is well suited for most die cast components including automotive die cast parts.

Q: Is die casting the same as extrusion?

A: Extruded aluminum products are generally harder and stronger than their die-cast counterparts and have a smoother finish. Furthermore, extrusion dies are relatively cheaper than die-cast moulds and are easier to make. Extrusion is an adaptable and cheaper process that can be adjusted at short notice.

Q: What products are made by die casting?

A: Piping, drilling machinery, valves, impellers for wind turbines, and brackets for solar panels are all examples of parts made through the die-casting process. These components provide strength and durability while meeting the demand for sustainable energy sources.

Q: What is the difference between die casting and molding?

A: Casting will typically involve metal, while molding focuses on plastics. In both cases, the melted material goes into a die or mold to create the final form. However, some other key differences in the process will change the final product. In molding, the material is injected into a form typically made of metal.

Q: How long does die casting take?

A: Typically, the process itself only takes a few seconds and is a quick way of forming metal product from raw material. Die casting is suited to materials such as tin, lead, zinc, aluminium, magnesium to copper alloys and even iron alloys such as stainless steel.

Q: Why do people use die casting?

Q: How accurate is die casting?

A: Due to the rapid filling of the mould under pressure, castings are dimensionally accurate with thin walls which are also very smooth, reducing the need for secondary finishing or machining.

Q: Does die casting need draft?

A: Draft angles are the degree of taper that is incorporated into the side wall and cores of the die cast tool to aid in the removal of a part. Primarily, they function to reduce the friction between the part and the tool as it is ejected. Without draft angles, parts can be stripped, dented, or get stuck in the tool.

Q: What is die casting used mainly to produce?

A: Die casting process is mainly used for nonferrous materials with high fluidity and low fusion temperature such as zinc and its alloys, copper, aluminum, brass, magnesium, and tin-based alloys. Approximately 50% of gears made of zinc-based alloys are manufactured by the die casting process.

We're well-known as one of the leading die casting suppliers in China for over 35 years, featured by quality products and good service. If you're going to wholesale discount die casting, welcome to get pricelist and quotation from our factory.

Stretch Square Mirror Surface Lamp Shade, Spinning Pattern Aluminum Lamp Shade, Stainless Steel Black Glass Drain Cover