What Are Die Casting Products Used for Across Industries, and Why?

Die casting products have become indispensable in modern manufacturing, thanks to their unique ability to balance complex design freedom, lightweight performance, и mass production efficiency. From the engine blocks powering cars to the tiny middle frames of smartphones, they penetrate every corner of industrial and consumer life—solving critical engineering challenges that other processes (НАПРИМЕР., ковкость, штамповка) struggle to address. This article systematically breaks down the core application fields of die casting products, the technical logic behind their adoption, and real-world examples to help you understand why they are the first choice for thousands of manufacturers worldwide.

1. Transportation Industry: The Backbone of Power & Lightweight Innovation

The transportation sector is the largest consumer of die casting products, Учет 60-70% of global die casting output. Its demand is driven by the need for fuel efficiency (for traditional vehicles) and range extension (for new energy vehicles, Невз)—both of which rely on die casting’s lightweight and high-strength advantages.

1.1 Автомобиль: From Powertrains to Integrated Structures

Die casting products dominate automotive manufacturing, with applications covering three key systems:

• Powertrain Components: Блоки двигателя, Королевки передачи, and oil pans are typically made of aluminum alloy die castings (НАПРИМЕР., ADC12, А380). The rapid solidification of die casting creates a dense microstructure, improving heat dissipation by 20-30% compared to sand casting—critical for engines operating at 90-120°C. Например, BMW’s B58 engine block uses die casting to integrate 12 internal water channels, reducing weight by 15kg vs. a welded steel block.
• NEV-Specific Parts: With the rise of electric vehicles, die casting has expanded to motor shells, battery pack housings, and even integrated body structures. Tesla’s 4680 battery pack shell uses a 9000-ton large-scale die casting machine to form a single piece, eliminating 70+ welding points and reducing weight by 30kg. This not only extends vehicle range by 50-80km but also cuts assembly time by 40%.
• Шасси & Body Parts: High-strength aluminum alloy die castings (НАПРИМЕР., AlSi10MgMn) are used for suspension brackets and door hinges. Their tensile strength (320-350МПА) meets crash safety requirements, while their lightweight design reduces unsprung mass—improving ride comfort and handling.

1.2 Rail Transit & Авиация

• Высокоскоростная железная дорога: Seat frames, door system components, and brake calipers rely on die casting’s высокая точность размеров (tolerance ±0.1mm/m). CRRC’s Fuxing high-speed train uses die cast aluminum seat frames that weigh 40% less than steel ones, reducing energy consumption while ensuring long-term reliability (10+ years of service without deformation).
• Аэрокосмическая (Lightweight Components): While large aircraft structures still use forging, Небольшие точные детали (НАПРИМЕР., авиационные корпусы, fuel system connectors) использовать magnesium alloy die castings. Their low density (1.74G/CM³) and excellent electromagnetic shielding make them ideal for weight-sensitive aerospace applications—Boeing’s 787 Dreamliner использует 100 die cast magnesium parts, cutting overall weight by 500kg.

2. Электроника & Коммуникация: Miniaturization Meets Heat Dissipation

The electronics industry’s pursuit of “тоньше, зажигалка, more powerful” devices has made die casting products a necessity. They solve the core contradiction between compact design and functional performance—especially in heat management and signal integrity.

2.1 Потребительская электроника

• Smartphones & Tablets: The middle frame (a critical structural and functional component) is almost exclusively made of magnesium alloy die castings (НАПРИМЕР., Az91d). It integrates antenna signal channels, key slots, and heat dissipation paths in a space as small as 60cm². Apple’s iPhone 15 Pro middle frame uses die casting to achieve a wall thickness of 0.8mm, while maintaining EMI (Electromagnetic Interference) shielding effectiveness of >80dB—ensuring no signal loss.
• Ноутбуки & Носимые устройства: Laptop shells and smartwatch cases use aluminum alloy die castings (НАПРИМЕР., А356) with embedded heat dissipation fins. Dell’s XPS 17 laptop shell, например, uses die casting to form a 1mm-thin body with integrated fins—solving the thermal management problem of 45W high-performance processors without adding weight.

2.2 Communication Infrastructure

• 5G Base Stations: Rf (Radio Frequency) device housings and power supply enclosures use aluminum alloy die castings (НАПРИМЕР., ADC12) with corrosion-resistant coatings. They must withstand harsh outdoor environments (temperature ranges of -40°C to 60°C, humidity >90%) while meeting EMI shielding requirements. Huawei’s 5G base station RF housing uses die casting to achieve an IP67 waterproof rating, ensuring no signal leakage or water damage for 5+ годы.

3. Домашние приборы & Household Products: Функциональность & Aesthetics in Balance

Die casting products in home appliances excel at integrating complex functions (НАПРИМЕР., water flow control, heat conduction) with sleek designs—meeting both practical and aesthetic needs of consumers.

3.1 Кухня & Heating Appliances

• Cooking Equipment: Rice cooker liners, coffee machine heating plates, and induction cooktop panels use aluminum alloy die castings (НАПРИМЕР., А380) for their excellent thermal conductivity (150-180 W/m・K). Xiaomi’s 米家 rice cooker liner uses die casting to form a 3mm-thick wall with a non-stick coating—ensuring uniform heat distribution (temperature variation <5° C.) and easy cleaning.
• Water Heaters & Air Conditioners: Compressor shells and heat exchanger manifolds use high-strength aluminum die castings (НАПРИМЕР., AlSi12Cu) to withstand high pressure (up to 3MPa for air conditioner compressors). Gree’s air conditioner compressor shell uses die casting to eliminate porosity, ensuring no refrigerant leakage for 10+ годы.

3.2 Bathroom & Security Products

• Bathroom Accessories: Shower head housings and faucet handles use zinc alloy die castings (НАПРИМЕР., Нагрузки 5) с хромированием. They can be precisely shaped to control water flow patterns (НАПРИМЕР., rainfall, massage) while achieving a mirror-like surface finish (Раствор <0.8мкм). Kohler’s shower head housing uses die casting to form 0.5mm-thin water channels—ensuring consistent water pressure.
• Smart Door Locks: Lock bodies and gear mechanisms use zinc alloy die castings (НАПРИМЕР., Нагрузки 3) for their wear resistance and precision. The lock body of Xiaomi’s smart door lock uses die casting to accommodate a complex 6-gear transmission system, while ensuring the key insertion force is <5N—smooth and easy to use.

4. Промышленная техника & Медицинское оборудование: Reliability Under Extreme Conditions

In industrial and medical fields, die casting products must meet strict requirements for durability, точность, and safety—often operating in high-pressure, high-vibration, or sterile environments.

4.1 Промышленная техника

• Hydraulic & Pneumatic Systems: Насосные корпусы, Клапанские тела, and cylinder blocks use aluminum alloy die castings (НАПРИМЕР., А356) with dense structures (пористость <1%). They must withstand high-pressure liquid impact (up to 30MPa for hydraulic valves) without leakage. Bosch Rexroth’s hydraulic valve body uses die casting to achieve a dimensional tolerance of ±0.05mm—ensuring precise control of fluid flow.
• Робототехника: Industrial robot joint housings and cycloidal wheels use high-strength aluminum alloy die castings (НАПРИМЕР., AlSi10MgMn). ABB’s IRB 6700 robot joint housing uses die casting to reduce weight by 30% против. steel—lowering the robot’s motion inertia and improving positioning accuracy (± 0,02 мм).

4.2 Медицинское оборудование

• Diagnostic Devices: CT machine rotating frames and ultrasound probe housings use aluminum alloy die castings (НАПРИМЕР., А356) with lead alloy inlays for radiation protection. Siemens’ SOMATOM CT machine rotating frame uses die casting to form a large-span (1.2м) lightweight structure—reducing rotation noise to <50дБ (critical for patient comfort) while meeting radiation shielding standards.
• Хирургические инструменты: Небольшие точные компоненты (НАПРИМЕР., forceps handles, scalpel holders) использовать stainless steel die castings (НАПРИМЕР., 316Л) for their biocompatibility and corrosion resistance. Они встречают ISO 13485 Стандарты медицинского устройства, ensuring no bacterial growth or rusting after repeated sterilization.

5. Emerging Industries: Pushing the Boundaries of Die Casting Applications

As new technologies (НАПРИМЕР., new energy, unmanned systems) develop, die casting products are expanding into innovative fields—solving unique engineering challenges with new materials and structures.

5.1 New Energy (Photovoltaics & Energy Storage)

• PV Inverters: Heat sinks for inverter power modules use aluminum alloy die castings (НАПРИМЕР., А356) with parallel fin structures. JinkoSolar’s PV inverter heat sink uses die casting to form 2mm-thin fins with a density of 5 fins/cm—improving heat dissipation efficiency by 40% против. traditional extruded heat sinks.
• Energy Storage Systems: Battery pack housings for home energy storage use large-scale aluminum die castings (НАПРИМЕР., AlSi10MgMn) with fire-resistant coatings. Tesla’s Powerwall 3 housing uses die casting to integrate cooling channels and fire barriers—ensuring safe operation even in high-temperature environments.

5.2 Unmanned Systems & VR/AR

• Беспилотники (Drones): Gimbal brackets and fuselage frames use magnesium alloy die castings (НАПРИМЕР., AZ31B) to balance lightweight and vibration resistance. DJI’s Mavic 3 drone gimbal bracket uses die casting to achieve a weight of <50g while withstanding vibration frequencies of 200-500Hz—ensuring stable camera footage during flight.
• VR/AR Devices: Helmet ring brackets and controller shells use aluminum alloy die castings (НАПРИМЕР., А380) with special-shaped curved surfaces. Meta’s Quest 3 VR helmet ring bracket uses die casting to form a 1.2mm-thin curved structure—fitting the human head contour perfectly and improving wearing comfort for 2+ часы использования.

6. Special & Strategic Applications: Customized Solutions for Demanding Needs

In special fields (НАПРИМЕР., explosion-proof, продовольственный, военный), die casting products provide customized solutions that meet the most stringent standards—relying on specialized materials and precision control.

7. Yigu Technology’s Perspective on Die Casting Product Applications

В Yigu Technology, we believe the value of die casting products lies in their cross-industry adaptability—they don’t just “make parts,” but solve industry-specific pain points. Many manufacturers underutilize die casting by limiting it to traditional applications (НАПРИМЕР., Простые скобки) instead of exploring its potential in new fields (НАПРИМЕР., 5Глин, медицинский).

Мы рекомендуем application-driven material & process matching подход: Например, NEV battery packs need large-scale aluminum die casting with vacuum degassing (to reduce porosity); 5G base stations need corrosion-resistant aluminum with EMI shielding coatings. Our team works with clients to customize die casting solutions—from material selection to mold design—ensuring products meet both functional and cost goals.

Заглядывая в будущее, with the development of semi-solid die casting and AI-driven process control, die casting products will expand into more high-end fields (НАПРИМЕР., aerospace structural parts, quantum computing enclosures). By focusing on “application innovation first,” die casting will remain a core technology for the next decade of manufacturing.

8. Часто задаваемые вопросы: Common Questions About Die Casting Product Applications

1 квартал: Can die casting products be used in high-temperature environments (НАПРИМЕР., >300° C.) like industrial furnaces?

Да, but material selection is critical. For temperatures 300-500°C, использовать aluminum-silicon alloys with high silicon content (НАПРИМЕР., AlSi17CuMg) или Медные сплавы (НАПРИМЕР., Cucrzr). Например, die cast copper alloy furnace brackets can withstand 450°C for long periods. Avoid magnesium alloys (which soften above 200°C) in high-temperature scenarios.

2 квартал: Are die casting products suitable for load-bearing structural parts (НАПРИМЕР., building supports)?

Die casting products are not ideal for large-scale building load-bearing parts (which require ultra-high strength, >500МПА). Однако, they are used for small structural components in prefabricated buildings (НАПРИМЕР., curtain wall connectors, pipe brackets). These parts use high-strength aluminum alloys (НАПРИМЕР., 6061 die castings) with heat treatment (T6) to meet load requirements of 10-20kN.

Q3: How to choose between aluminum, магний, and zinc die casting products for a new application?

Use this simple guide: 1. Легкий вес + ЭМИ защищение: Choose magnesium (НАПРИМЕР., Рамки смартфонов). 2. Высокая сила + heat conduction: Choose aluminum (НАПРИМЕР., блоки двигателя). 3. Бюджетный + Небольшие точные детали: Choose zinc (НАПРИМЕР., door lock gears). For complex needs (НАПРИМЕР., коррозионная стойкость + высокая температура), consult a die casting engineer to test material samples under real application conditions.