1. Product brief description
High-end refrigerator metal mesh is the core functional component inside the refrigerator, specially designed to improve storage safety, cooling efficiency and durability. Its application covers key scenarios such as refrigerator/freezer shelf support, air duct system ventilation and filtration, evaporator and condenser pipe protection, etc. It has four core advantages of high load-bearing, strong ventilation, corrosion resistance, and easy cleaning. It can adapt to environmental fluctuations in different temperature zones (-40°C ~ 60°C). At the same time, it ensures seamless fit with the refrigerator liner and components through precise structural design, without affecting the refrigeration cycle and space utilization.
2. Core process characteristics
- Precision molding process: using fully automatic spot welding robot welding, the welding point spacing is controlled at 5-8mm, the welding point diameter is ≤2mm, the mesh flatness error is ≤0.5mm/m, and the structural stability is 40% higher than traditional manual welding; the woven mesh adopts plain/twill precision weaving, with a mesh uniformity of more than 98% and better breathability.
- Advanced surface treatment: Prioritize the dual treatment of "hot-dip galvanizing + electrostatic spraying". The thickness of the zinc layer is ≥85μm. The spraying layer uses food contact grade epoxy resin powder. The adhesion reaches level 0 (cross-hatch test) and the salt spray resistance test is ≥500 hours. High-end models can choose nano-ceramic coating, which is oil-resistant and easy to wipe. The cleaning efficiency is increased by 60%.
- Detailed precision control: The edges adopt internal curling or laser trimming process, without burrs (burr height ≤0.1mm) to avoid scratching the inner tank and the user; the installation hole position tolerance is controlled at ±0.2mm to ensure precise docking with buckles/guide rails, easy disassembly and assembly, and no deformation after repeated use.
3. Specifications and materials
(1) Preferred materials
- Core base material: Mainly 304 stainless steel wire (nickel content ≥8%), with tensile strength ≥520MPa, elongation ≥40%, excellent low-temperature corrosion resistance, and suitable for long-term low-temperature environments in the freezer; the second choice is 201 stainless steel wire (nickel content 4-6%), which has moderate cost and is suitable for non-extreme environments in the refrigerator room.
- Auxiliary coatings: hot-dip galvanized layer (zinc purity ≥99.9%), food contact grade electrostatic spray layer (thickness 60-80μm), nano ceramic coating (thickness 10-15μm), all comply with RoHS and food contact safety standards.
(2) Precise specifications
Purpose
Wire diameter range
Aperture range
Regular size (length × width)
Thickness
shelf support net
1.8-2.2mm
10-15mm
600-900mm×350-550mm
3-5mm
Air duct ventilation network
1.0-1.2mm
15-20mm
400-600mm×200-300mm
2-3mm
Evaporator protection net
1.2-1.5mm
5-8mm
500-800mm×250-400mm
2.5-4mm
storage partition net
1.0-1.2mm
12-15mm
300-500mm×150-250mm
2-3mm
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