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剑兰路1377号
Ningbo Jiuyu Experimental Equipment Co., Ltd
剑兰路1377号
Specification: 1500 * 750 * 850, size deviation ± 5mm
1. Basic requirements: The overall style of the experimental platform and laboratory should be consistent and fully functional. laboratory bench
It should have strong stability and load-bearing performance. Corrosion resistance and strong load-bearing capacity; Equipped with an electrical socket and a universal switch; Easy installation of waste liquid, gas, and cooling water pipelines.
2. External dimensions and deviations: Width, depth, and height deviations are ± 5mm, all joints (not required by design) are ≤ 2.0mm, bottom angle stability is ≤ 0.5mm, drawer sag is ≤ 4mm, drawer swing is ≤ 2mm, and front panel flatness is ≤ 0.1mm.
3. Safety requirements: Components that come into contact with the human body should not have burrs, cutting edges, sharp edges, or ends. The combination of fixed parts should be firm without looseness, without missing parts, through nails, or missing nails (except for reserved holes and selected holes). Drawer keyboards and other sliding components should have anti drop devices.
4. ★ Wear performance: Taber wear test with 100 cycles not exceeding 5.5mg
5. Scratch resistance: 1.5N, with no continuous scratches throughout the entire circle.
6 ★ Anti aging: conditioning (23 ± 2) ℃, (50 ± 5)%, 48 hours; Aging (45 ± 5) ℃, 65%~90%, 72 hours, no cracking. Crack resistance: (70 ± 2) ℃, (24 ± 1) h, not less than level 1. Cold and hot cycling resistance: (80 ± 2) ℃, (120 ± 10) min (-20 ± 3) ℃, (120 ± 10) min, four cycles. No cracks, bubbles, wrinkles, or obvious discoloration.
7. The maximum load-bearing capacity meets the following requirements:
Floor standing bottom cabinet body: Load performance test ≥ 800Kg, centralized load performance test ≥ 100kg
Frame type base frame: Load performance test ≥ 300Kg
Bottom cabinet layer board: Load performance test ≥ 90Kg/m ³
Drawer: Static load bearing performance test ≥ 68Kg
Door hinge: Load bearing performance test ≥ 90Kg
Drawer switch: ≥ 100000 times
8. Impact strength: At an impact height of 400mm, there is no peeling, cracking, wrinkling, or cracking.
9. Surface spraying:
1) Epoxy resin powder electrostatic spraying, coating thickness ≥ 80um
2) Solidify to a smooth surface in a 180 degree high-temperature oven
10. Environmental performance of epoxy resin powder: DBP ≤ 25mg/kg, BBP ≤ 25mg/kg, DEHP ≤ 30mg/kg, DNOP ≤ 25mg/kg, PBBs and PBDEs are not detected.
11. ★ Corrosion resistance of metal spray coating: Within 100 hours of observation, no bubbles should be generated beyond 3mm on the sample plate in the solvent. After 100 hours, check that there is no rust, peeling, wrinkling, discoloration, or loss of gloss beyond 3mm of the scratch.
12. Handle:
1) Material: Made of high-strength stainless steel handle; When the drawer width exceeds 600mm or more, two handles should be provided
2) Chemical composition of the handle (mass fraction): C is 0.08%, Si is 1%, Mn is 2%, P is 0.035%, S is 0.030%, Ni is 8% -11%, Cr is 18% -20%, N is 0.10%
13. Cabinet body and cabinet door (all steel structure)
Adopting a double-layer sandwich structure of cold-rolled steel plate with a thickness of 1.0mm or more, reinforced ribs are installed inside, and honeycomb paper sound insulation material is filled in the middle. The surface is pickled, phosphated, and polished, and then sprayed with electrostatic powder of not less than Aksu epoxy resin to achieve a surface thickness of 75 μ m or more. It has functions such as rust prevention, corrosion prevention, and resistance to organic solvents. Finally, it is baked at high temperature to produce. Non deformable and possessing strong compressive strength. The cabinet door adopts a double door type, and there is no central vertical pillar blocking between the two doors of the cabinet. Each cabinet is equipped with convenient functional labeling, and the inner side of the cabinet door is equipped with door latch assembly and rubber buffer pad.
15. hinges
The performance of stainless steel hinges meets or exceeds the following requirements:
(1) The appearance should be free of delamination and cracks; The surface of the electroplated layer should be free of peeling, reverse embroidery, burrs, burning, bubbles, pinholes, cracks, flower spots, and scratches.
(2) Corrosion resistance: The 24-hour acetic acid salt spray test shall not be lower than level 10.
★ (3) Durability: After 80000 pull tests, all components or joints should not break; Confirm through hand pressure that the components used for fastening should not loosen; All components should not have any deformation or wear that affects normal operation; Fixed components should not be loose; The functionality of all components should not be compromised; The cup-shaped concealed hinge and its components should be able to function properly.
16. Sliding rail
The drawer rail adopts a laboratory steel three section silent rail. The performance of the stainless steel slide rail meets the requirements of QB/T2454-2013, and all performance meets or exceeds the following requirements:
Durability: After 80000 pull tests, all components or joints should not break; Confirm through hand pressure that the components used for fastening should not loosen; All components should not have any deformation or wear that affects normal operation; Fixed components should not be loose; The functionality of all components should not be compromised; The cup-shaped concealed hinge and its components should be able to function properly.
17. Drawer panel
Adopting a double-layer sandwich structure of cold-rolled steel plate with a thickness of 1.0mm or more, reinforced ribs are installed inside, and honeycomb paper sound insulation material is filled in the middle. The surface is pickled, phosphated, and polished, and then sprayed with electrostatic powder of not less than Aksu epoxy resin to achieve a surface thickness of 75 μ m or more. It has functions such as rust prevention, corrosion prevention, and resistance to organic solvents. Finally, it is baked at high temperature to produce. Non deformable and possessing strong compressive strength.
The drawer is made of cold-rolled steel plate with a thickness of 1.0mm or more, which is punched, folded, and welded. The surface is pickled, phosphated, and polished, and then sprayed with Aksu epoxy resin electrostatic powder to achieve a surface thickness of not less than 85 μ m. It has functions such as rust prevention, corrosion prevention, and resistance to organic solvents. Finally, it is baked at high temperature and made. The effective height of general wall drawing is above 100mm, and the effective height of medium-sized wall drawing is above 150mm. The horizontal depth of the wall should be at least 400mm, and fixed sliding rails should be installed on both sides of the wall.
The sides and front and rear ends of the drawer panel should be folded down and then folded back, without cutting the edges.
18. Laminated board
Using cold-rolled steel plates with a thickness of 1.0mm or more and reinforced ribs inside. After acid pickling, phosphating, and polishing, the surface is sprayed with Aksu epoxy resin electrostatic powder to a thickness of no less than 85 μ m. It has functions such as rust prevention, corrosion prevention, and resistance to organic solvents, and is made by high-temperature baking.
All experimental cabinets with doors are equipped with built-in movable shelves, which can be freely adjusted in height up and down every 20mm.
19. Bottom plate
Using cold-rolled steel plates with a thickness of 1.0mm or more and reinforced ribs inside. After acid pickling, phosphating, and polishing, the surface is sprayed with Aksu epoxy resin electrostatic powder to a thickness of no less than 85 μ m. It has functions such as rust prevention, corrosion prevention, and resistance to organic solvents, and is made by high-temperature baking.
The bottom plate needs to be equipped with corresponding reinforcement ribs to enhance its load-bearing capacity and prevent deformation under stress, with a load-bearing capacity greater than 50 kilograms per square meter
19. Metal trunking
The performance of metal trunking shall meet or exceed the following requirements:
(1) The appearance of stamped parts should be free of delamination and cracks; The surface of the electroplated layer should be free of peeling, reverse embroidery, burrs, burning, bubbles, pinholes, cracks, flower spots, and scratches.
★ (2) Physical and chemical properties: The metal plating layer is resistant to salt spray for 18 hours, with no more than 8 rust spots for diameters below 1.5mm, and no more than 2 rust spots for diameters ≥ 1.0mm.