How Does Friction Stir Welding Solve Joining Challenges for New Energy Vehicle “Three-Electric” Aluminum Components?
Power battery trays, motor and electronic control housings, and liquid-cooling components impose stringent requirements regarding weld strength, sealing, and deformatio...
With the launch of an automated gravity casting production line, how can the stability of aluminum alloy castings be enhanced?
While gravity casting may appear traditional, achieving stable mass production requires the combined support of equipment, processes, and quality systems. Tonglin Casting...
3D-Printed Sand Casting: How to Shorten Development Cycles for Small-Batch, Complex Castings?
Traditional mold-making methods often face pressure regarding lead times and costs when dealing with small-batch prototyping, complex internal cavities, and frequent design iterations. 3D-printed sand mo...
Aluminum Alloy vs. Cast Iron Cylinder Blocks: Look Beyond Weight
Aluminum alloy blocks offer advantages in lightweighting and thermal management, whereas cast iron blocks excel in rigidity, wear resistance, and heavy-duty applications. Material selection should consider operating conditions, stru...
What new demands does the new energy era place on the manufacturing of engine blocks for hybrid and extended-range vehicles?
The rapid growth of new energy vehicles (NEVs) does not imply a single powertrain path. Hybrid and extended-range models impose new requirements for high efficiency, compac...
Zhengheng Power Holds Review Meeting for the First Half of 2026
On July 17, Chengdu Zhengheng Power Co., Ltd. held a review meeting for the first half of 2026. The meeting comprehensively reviewed the company’s operational performance and development during this period, systematically summ...
Zhengheng Power | Air Tightness Quality Control for Aluminum Die-Cast Housings
The electronic control systems of new energy vehicles operate continuously under harsh conditions including constant vibration, high humidity and drastic temperature fluctuations. The sealing and air tightness of al...
Tonglin Foundry, Subsidiary of Zhenheng Power, Officially Launches Brand-New Automated Gravity Casting Production Line
Recently, Tonglin Foundry, a wholly-owned subsidiary of Zhenheng Power, has achieved another milestone in intelligent manufacturing upgrading with the commissioning and offici...
Zhenheng Power | Friction Stir Welding: The Mandatory Welding Process for Three-Electric Components
With the full popularization of lightweight new energy vehicles and integrated CTC/CTB chassis technologies, core three-electric components including power battery trays, motor and electric cont...
Zhenheng Power Air Tightness Testing Process: Helium Leak Testing vs. Conventional Air Pressure Testing
As core protective components of the three-electric system, new energy electric control housings require IP67 air tightness as a core quality control standard before factory delivery. Ti...
Zhengheng Power | Tonglin Foundry Laboratory Awarded
CNAS National Laboratory Accreditation
Recently, the laboratory of Chengdu Tonglin Foundry Industry Co., Ltd., a wholly-owned subsidiary of Chengdu Zhengheng Power Co., Ltd. (hereinafter referred to as Zhengheng Power), has officially obtain...
Zhenghong Power Congratulates GWM Tank 700 Hi4-T on Claiming a Grand Slam at the 2026 Tarim Rally
The 2026 Tarim Rally has recently concluded. Spanning an extreme course of 7,500 kilometers over 17 days, the race traverses Xinjiang’s no-man’s lands, scorching Gobi deserts, shifting sand dunes ...