Wear is a key factor affecting production efficiency and cost in
Instrument Micro Screws. Traditional Instrument
Micro Screws often use tool steels such as Cr12MoV, which have low surface hardness and are prone to wear.
For difficult-to-machine materials such as stainless steel and high-strength steel, the lifespan of Instrument Micro Screws is often less than 10,000 cycles. Innovative design achieves breakthroughs in both materials and structure:
In terms of materials, nano-coating technology and composite Instrument Micro Screws materials are widely used. For example, depositing a TiAlN nano-coating on the surface of an Instrument Micro Screws can achieve a hardness of over 3000 HV and improve wear resistance by 5-10 times.
Using a composite structure of cemented carbide (such as WC-Co) and tool steel, with cemented carbide used for the cutting edges and tool steel for the substrate, ensures wear resistance while reducing material costs.
After adopting a nano-coating, the lifespan of a certain home appliance company's stainless steel Instrument Micro Screws increased from 8,000 cycles to 50,000 cycles, and the replacement cost of the Instrument Micro Screws decreased by 70%.
In terms of structure, modular and detachable designs are becoming a trend. The easily worn parts of Instrument Micro Screws (such as cutting edges and pressure rings) adopt a detachable structure. After wear, only the affected parts need to be replaced, eliminating the need to scrap the entire Instrument Micro Screws.
For example, in Instrument Micro Screws with wheel hubs, the die cutting edge uses an inlay design. Replacing the cutting edge module after wear takes only 2 hours, while traditional whole-vehicle repair requires more than 12 hours, significantly reducing downtime.
