High-performance aluminum powder products engineered for next-generation automotive thermal management
TJWX offers 20+ years of experience producing spherical aluminum powder for refractory and thermal insulation brick applications in automotive systems.
VIEW MORE
Engineered spherical aluminum powder optimized for thermal management products in lightweight automotive structures and EV battery modules.
VIEW MORE
Advanced aluminum metal matrix composite powders supporting structural lightweighting and thermal insulation in automotive chassis components.
VIEW MORE
Surface-treated aluminum powder delivering superior thermal conductivity and filler performance for automotive insulation brick and pad applications.
VIEW MOREThe global automotive industry is undergoing its most transformative decade in history. Tightening CO₂ emission regulations in the EU, China, and North America, combined with the exponential growth of electric vehicles (EVs), are forcing OEMs and Tier-1 suppliers to rethink every gram of weight in a vehicle platform. Thermal insulation brick — once considered a purely industrial refractory material — has emerged as a vital enabler of automotive lightweighting strategies.
Traditional steel-based thermal shields and heavy ceramic insulation panels are being replaced by advanced aluminum-based thermal insulation bricks and composite structures. These next-generation components combine ultra-low density, excellent thermal resistance, and structural integrity, making them ideal for underbody heat shields, battery module separators, exhaust tunnel liners, and catalytic converter housings.
Key Insight: Every 10% reduction in vehicle weight results in approximately 6–8% improvement in fuel efficiency or EV range. Aluminum-based thermal insulation bricks can reduce component weight by up to 40% compared to conventional steel or ceramic alternatives, while maintaining equivalent or superior thermal performance.
At the heart of this revolution is high-quality spherical aluminum powder — the foundational raw material for producing lightweight thermal insulation bricks, refractory composites, and thermal management components. TJWX (Hunan Ningxiang Jiweixin Metal Powder Co., Ltd.) has been supplying precision aluminum powders to this sector for over two decades, supporting global automotive supply chains with consistent quality and technical expertise.
Years of aluminum powder manufacturing excellence since 1997
Annual production capacity of 10,000 tons of aluminum powder
Global partnerships with leading industrial enterprises worldwide
Weight reduction potential vs. conventional thermal insulation materials
The commercial and industrial forces reshaping thermal insulation brick demand in automotive lightweighting
The global EV market is projected to surpass 45 million units annually by 2030. Each EV battery pack requires multiple layers of thermal insulation — between cells, modules, and the pack housing. Lightweight aluminum-based thermal insulation bricks are replacing heavier ceramic and mica solutions, reducing battery pack weight by 8–15% while improving thermal runaway protection. This single application segment is driving double-digit annual growth in demand for high-purity spherical aluminum powder.
Regulatory pressure from Euro 7, China's NEV mandate, and the U.S. CAFE standards is compelling automakers to achieve fleet-average CO₂ reductions of 30–50% by 2035. Thermal insulation brick components made from aluminum powder composites contribute directly to meeting these targets by reducing structural weight without compromising thermal safety performance — a dual benefit that no single alternative material currently offers at scale.
Advanced gas atomization and surface treatment technologies have dramatically improved the performance profile of aluminum powders used in thermal insulation brick manufacturing. Modern spherical aluminum powders offer tighter particle size distributions (D50 ranging from 5μm to 150μm), higher purity levels (≥99.7% Al), and customizable surface coatings — enabling manufacturers to fine-tune thermal conductivity, porosity, and mechanical strength for specific automotive applications.
Post-pandemic supply chain disruptions have accelerated the trend toward regional aluminum powder sourcing. Automotive OEMs and Tier-1 suppliers in Europe, North America, and Southeast Asia are actively seeking qualified suppliers with proven quality management systems (ISO9001, IATF16949) and the capacity to deliver consistent, traceable material. TJWX's partnership with Toyo Aluminium K.K Group positions it uniquely to serve both Asian and global markets.
Metal additive manufacturing (3D printing) is enabling the production of geometrically complex thermal insulation brick structures that are impossible to fabricate using traditional casting or pressing methods. Aluminum alloy powders optimized for laser powder bed fusion (LPBF) and binder jetting are now being used to produce custom-shaped automotive thermal shields with internal lattice structures — achieving unprecedented combinations of low weight, high surface area, and thermal insulation efficiency.
Aluminum's inherent recyclability (recycled aluminum requires only 5% of the energy needed to produce primary aluminum) makes aluminum-based thermal insulation bricks a cornerstone of automotive sustainability strategies. Leading OEMs including BMW, Volkswagen, and Toyota have committed to increasing recycled aluminum content in their vehicles, creating long-term structural demand for high-quality aluminum powder feedstock that meets both performance and sustainability criteria.
Where thermal insulation brick technology is transforming vehicle architecture and performance
Modern ICE and hybrid vehicles generate extreme underbody heat from exhaust systems, catalytic converters, and turbochargers. Aluminum powder-based thermal insulation bricks are laminated into multi-layer underbody shields that reflect radiant heat, protect fuel lines and wiring harnesses, and reduce cabin heat intrusion — all at a fraction of the weight of traditional stamped steel shields. The combination of aluminum powder's high reflectivity and low thermal mass makes it the material of choice for this application.
In battery electric vehicles, thermal runaway propagation between cells is one of the most critical safety challenges. Aluminum-based thermal insulation bricks placed between cell groups act as passive thermal barriers, absorbing and dissipating heat during fault conditions. Their lightweight nature (density 0.3–0.8 g/cm³ for porous aluminum brick structures) versus conventional mica or ceramic solutions (1.5–2.5 g/cm³) delivers significant pack-level weight savings that directly extend vehicle range.
The exhaust tunnel running beneath the passenger cabin is a major heat intrusion pathway in performance and commercial vehicles. Aluminum powder composite thermal insulation bricks bonded to the tunnel structure reduce floor surface temperatures by up to 60°C, enabling thinner carpeting and reduced HVAC load — contributing to both weight reduction and energy efficiency. Custom-shaped bricks produced via powder metallurgy allow precise fitment to complex tunnel geometries.
In motorsport and high-performance road cars, aluminum metal matrix composites (Al-MMC) reinforced with ceramic particles are used to manufacture lightweight brake discs and calipers with superior thermal management properties. Spherical aluminum powder is the primary feedstock for these Al-MMC components, which offer 50–60% weight savings over cast iron while providing comparable thermal conductivity and dramatically improved fade resistance at sustained high temperatures.
Automotive firewalls and bulkheads must simultaneously provide structural rigidity, acoustic damping, and thermal insulation. Aluminum powder-based composite panels incorporating hollow microspheres or porous brick structures achieve this multi-functional requirement at weights 30–45% lower than conventional steel-and-foam assemblies. These panels are increasingly specified in premium EV platforms where NVH (noise, vibration, harshness) performance and thermal management are both critical.
Powder metallurgy (PM) using aluminum alloy powders enables the near-net-shape production of complex automotive structural components — transmission housings, engine mounts, suspension brackets — with minimal machining waste. PM aluminum components achieve density reductions of 35–40% versus steel equivalents while maintaining the required mechanical strength. The integration of thermal insulation functionality into PM structural parts represents the next frontier in automotive lightweighting design.
Jiweixin aluminum powder solutions serve diverse high-performance industrial sectors
Jiweixin — thank you for your continuous support and care for us
TJWX — your trusted partner for precision aluminum powder in automotive lightweighting
The whole process service provided by professionals. Answer all questions with decades of accumulated expertise.
Uniform charging standard, without any hidden fees. Limited time promotion allows you to enjoy more discounts.
24-hour considerate service process node feedback at any time, so that you can understand the latest business trends.
Provide enterprises with personalized service cases, so that enterprises can grow and conclude business quickly.
Established in 1997, Hunan Ningxiang Jiweixin Metal Powder Co., Ltd. is a hi-tech enterprise engaged in the R&D and production of spherical Aluminium powder, Aluminium-based alloy powder and other metal powder. In December 2009, the company was jointly acquired by Toyo Aluminium K.K Group and Shanghai Matsuo Co., Ltd.. The company is located in Ningxiang State-level Economic Development Zone, Hunan Province.
With over 28 years of continuous innovation, TJWX has become a globally recognized supplier of precision aluminum powders for thermal insulation brick manufacturing, automotive lightweighting applications, 3D printing, and advanced thermal management systems. Our ISO9001:2015 and ISO14001:2015 certified production processes ensure every batch meets the exacting standards demanded by automotive OEMs and Tier-1 suppliers worldwide.
VIEW MORE
The company was founded in 1997
The annual production is 10,000 tons
It has cooperated with 230 well-known enterprises
In 2008, the company passed the certification of ISO9001:2015 Quality Management System and ISO14001:2015 Environment Management System and obtained the Safe Production License.
Stay informed on aluminum powder innovations and automotive lightweighting developments
As advanced manufacturing continues to move toward lighter, more complex, and more efficient co...
When buyers search for aluminum powder, they are often not looking for just one material. They ...
In the refractory industry, the choice of raw materials for refractories directly affects perfo...
Explore our complete portfolio of aluminum powder solutions for thermal insulation brick and automotive applications
