Core Fastening and Connection Solutions
Wire Thread Insert
Available in carbon steel and stainless steel, these inserts are designed to reinforce threaded holes in light alloy castings and profiles such as aluminum and magnesium. Once reinforced, the threaded holes can achieve Grade 8 or Grade 10 strength, significantly enhancing connection reliability.
Anti-Galvanic Corrosion
The combination of high-strength aluminum alloy bolts and anti-galvanic corrosion adhesive is designed for joining with magnesium alloy die-castings, effectively eliminating corrosion phenomena caused by galvanic reactions.
Clinching
Used for joining sheet metal and thin die-casting parts in vehicle bodies, chassis, and the 'Three-Electric' systems (Battery, Motor, and Electronic Control). These components are installed via clinching/press-fitting equipment.
Blind Riveting
Rivet nuts, rivet studs, and rivets are used for the mechanical joining of chassis and battery pack sheet metal. Pre-applied sealant on the heads of rivet nuts and rivets provides waterproofing and sealing, achieving a protection rating of up to IP68.
Locking and Sealing Bolts
Fasteners achieve loosening prevention through a three-piece assembly (bolt with flat and spring washers) and pre-applied thread-locking adhesive (chemical or physical). Additionally, sealant pre-coating or O-rings can be applied under the head or on the threads to ensure sealing, meeting the stringent waterproof and dustproof requirements of New Energy Vehicles (NEVs).
Sleeve
Chassis profiles and battery pack sleeve structural components. Using aluminum alloy with direct cold heading as an alternative to traditional CNC machining achieves total cost reduction and improved efficiency.
Industry Challenges
Project Cycle Cost Influence Model
The primary R&D challenge in modern industry is that early-phase strategic decisions lock in most expenditures despite a limited time window. Conversely, the cost of rectification in later stages is extremely high, leading to a significant disproportion between risk exposure and potential gains.
15-85 Law
An over-focus on explicit procurement costs leads to the neglect of hidden costs—which account for 85% of the total. This lack of systematic coordination across design, supply chain, and after-sales service significantly inflates the Total Cost of Ownership (TCO) across the entire product lifecycle.
YF Zhichengjia | Innovation Leader in the Fastener Industry
YF Zhichengjia is an expert in Total Cost of Ownership (TCO) optimization, spanning from prototyping to after-sales service. We provide end-to-end fastening technology support and product solutions specifically designed for the New Energy Vehicle (NEV) industry.
Six Professional Services of YF Zhichengjia
Professional training
Professional design consultation
Rapid Prototypes
Professional testing
Professional disassembly analysis
Continuous process optimization
