1. The material type determines the basic selection
Recommended types of stainless steel, sand belts/wheels, characteristics, typical applications
Austenitic 304/316 alumina/silicon carbide sand belt (high temperature resistant) for home appliance panels and building decoration
Martensitic 430 zirconia corundum sand belt (high cutting force) for automotive decorative strips and cutting tools
Dual phase steel 2205 ceramic abrasive belt (ultra-high hardness) for chemical equipment and marine engineering
Mirror BA board nylon fiber wheel (finely polished) for electronic products and luxury packaging
Key parameters:
Hardness matching: The material hardness (HV) should be lower than the abrasive hardness (such as alumina HV2000+)
Ductility compensation: High ductility materials (such as 304) need to be matched with anti clogging sand belts (coated with PTFE)
2. Comparison of texture effect and abrasive parameters
Texture type, grit of sand belt, abrasive type, linear velocity (m/min), surface roughness Ra (μ m)
Rough straight lines # 80- # 120 zirconia corundum 8-12 1.2-2.5
Standard brushed # 150- # 240 ceramic alumina 12-18 0.5-1.0
Precision fine grain # 320- # 600 silicon carbide 18-25 0.2-0.5
Ultra fine textured # 800- # 1500 diamond composite abrasive 25-30 0.05-0.1
Special texture craftsmanship:
Cross pattern: using X-Y axis linkage equipment+# 240/# 400 combination sand belt
Random trajectory robot+mixed mesh sand belt (such as # 180+# 320 alternating)
3. Key elements of sand belt structure design
Substrate selection:
Polyester fabric base: high tension stability (suitable for heavy equipment)
Paper based: Fine texture (preferred for electronic products)
Adhesive type:
Resin bonding: universal type, with a lifespan of 200-300m 2
Electroplating bonding: specialized for diamond abrasives, with a 5-fold increase in lifespan
Anti clogging technology:
Electrostatic sand planting process: abrasive arrangement density deviation<5%
Micro porous coating: reduces heat accumulation (reduces processing temperature by 40 ℃)
4. Optimization plan for device adaptability
Equipment type, optimal sand belt specifications, efficiency improvement techniques
The manual wire drawing machine uses a quick change interface for narrow sanding belts (50-100mm), with a replacement time of less than 30 seconds
Automatic assembly line with circular seamless sanding belt equipped with laser correction system (accuracy ± 0.1mm)
Customized irregular grinding wheel force control system for robot units (pressure fluctuation<2N)
Case: After upgrading the aluminum decorative strip wire of a certain automobile factory:
Original plan: # 180 alumina sand belt, with a lifespan of 80km
Optimized: # 220 ceramic sand belt+graphene cooling, with a lifespan of up to 220km
5. Cost performance balance strategy
Economic plan:
Domestic alumina sand belt (￥ 15-30/m 2)+ordinary coolant
Suitable for the construction industry with low requirements for texture consistency
High end solution:
Imported ceramic abrasive belt (￥ 80-150/m 2)+liquid nitrogen cooling
Suitable for ultra precision fields such as medical/semiconductor
Decision formula:
Comprehensive cost=(unit price of sanding belt/service life)+downtime loss+scrap rate cost
