Products Description
This metal mesh enables load separation, air circulation, and component protection. Used in shelves, drawer slides, air ducts, evaporators, and condensers. It balances load bearing, ventilation, and corrosion resistance, operates from -40°C to 65°C, and meets food safety standards. A single mesh weighs 20% less than plastic parts yet carries 50% more load.
Complete process flow
1.Substrate pretreatment – Wire drawing (±0.05mm), annealing (750‑800°C), pickling (15% HCl) → Ra≤1.6μm.
2.Welding forming – CNC spot welding: spacing 5‑10mm, current 8‑12kA, time 0.03‑0.05s, flatness ≤0.3mm/m.
3.Weaving forming – Plain/twill weave, speed 15‑20m/min, misalignment ≤1%, then shaping (180‑220°C, 3‑5min).
4.Basic anti‑corrosion – Hot‑dip galvanizing, zinc layer 80‑100μm, adhesion ≥60N/cm.
5.Advanced anti‑corrosion – Galvanizing + electrostatic spraying (food‑grade epoxy, 60‑80μm, cure 180‑200°C, GB 4806.10‑2022).
6.High‑end anti‑corrosion – Nano‑ceramic coating, 10‑15μm, water contact angle ≥110°, hydrophobic & oil‑resistant.
7.Finishing & inspection – Laser trim burrs ≤0.05mm; CNC punch holes (±0.1mm); inspect 12 indicators (appearance, size, performance). Pass rate ≥99.5%.
Specifications and material system
| Material type | core ingredients | Mechanical properties | Corrosion resistance | Adaptation scene |
| 304 stainless steel wire | Cr≥18%, Ni≥8% | Tensile strength ≥520MPa, elongation ≥40% | alt spray resistance ≥500 hours, no brittleness at -40℃ low temperature | Freezer shelf support, evaporator protective net |
| 201 stainless steel wire | Cr≥16%, Ni=4-6% | Tensile strength ≥450MPa, elongation ≥35% | Salt spray resistance ≥300 hours | Refrigerator compartment partition net, air duct primary filter |
| Low carbon steel wire (hot dipped galvanized) | C≤0.25% | Tensile strength ≥380MPa, elongation ≥25% | Salt spray resistance ≥200 hours | Economical refrigerator storage rack, bottom protective net |
| Application site | Wire diameter (mm) | Aperture (mm) | Regular size (length × width × thickness, mm) | Dimensional tolerance | Typical adapted models |
| Refrigerator shelf net | 1.8-2.2 | 12-15 | 650×400×4 | ±0.5mm | French style multi-door, side-by-side refrigerator |
| Air duct ventilation network | 1.0-1.2 | 5-20 | 500×250×2.5 | ±0.3mm | Cross door, three door refrigerator |
| Evaporator protection net | 1.2-1.5 | 5-8 | 700×350×3 | ±0.4mm F | Freezers, built-in refrigerators |
| drawer divider net | 0.9-1.1 | 10-12 | 400×180×2 | ±0.2mm | Mini refrigerator, drawer freezer |
Core performance verification indicators
Load-bearing performance
The single point load-bearing capacity of the shelf net is ≥15kg (loading time is 24 hours, deformation is ≤1mm)
01
Ventilation efficiency
ventilation rate of air duct network ≥92%, wind resistance ≤3Pa (under the condition of wind speed 1.5m/s)
02
Weather resistance
-40℃ freezing/65℃ high temperature cycle 50 times, no coating falling off or mesh deformation
03
Food safety
coating migration amount ≤10mg/dm², heavy metal content (Pb, Cd, Hg) ≤0.1mg/kg.
04
4. Core performance verification indicators
- Load-bearing performance: The single point load-bearing capacity of the shelf net is ≥15kg (loading time is 24 hours, deformation is ≤1mm);
- Ventilation efficiency: ventilation rate of air duct network ≥92%, wind resistance ≤3Pa (under the condition of wind speed 1.5m/s);
- Weather resistance: -40℃ freezing/65℃ high temperature cycle 50 times, no coating falling off or mesh deformation;
- Food safety: coating migration amount ≤10mg/dm², heavy metal content (Pb, Cd, Hg) ≤0.1mg/kg.
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