By Andy from Baiyear factory
Upated November 2, 2022
Explosion-proof boxes have different requirements for explosion-proof performance in different material design concepts. There are special manufacturing industries for explosion-proof box shells on the market. Then, according to different environments and requirements, explosion-proof box shells can be divided into the most commonly used aluminum and engineering plastics. , steel plate, stainless steel, etc. Of course, there are also some special requirements non-standard such as 316 stainless steel, etc., but these materials are more difficult to make materials with relatively high prices, for the explosion-proof equipment environment required by modern enterprises and national units, use different explosion-proof box equipment, explosion-proof equipment Electrical products have certain strict requirements.
Explosion-proof housing materials can be made of various grades of stainless steel (316 anti-corrosion) according to customer requirements. 304 stainless steel is widely used in curtain walls, side walls, roofs and other construction purposes, but in severe corrosive industrial environments, it is best to use 316. Stainless steel. It adopts automatic shielding gas welding, and the surface is treated by special polishing process after welding. It has beautiful appearance and bright stainless steel surface. It is suitable for all kinds of strong corrosive and explosive environments. The equipment number indicator plate is made of stainless steel plate bending and polishing, with beautiful appearance and practicality. The explosion-proof surface adopts special processing methods, and is embedded with oil-resistant and aging silicone “0″-shaped sealing ring, so that the protection level of the box reaches IP65, so as to solve the problem of rainwater entering the traditional explosion-proof box in outdoor use, and the traditional use of rainproof cover to prevent rain is complicated. and ineffective measures. All fasteners are preferably made of 316 stainless steel fasteners that are resistant to strong corrosion. Specific functions and appearance can be customized according to user requirements.
Must comply with the national inspection standard GB3836-2000, IEC60079 standard requirements. series to accept
1. Before tightening the box cover, evenly apply a thick layer of calcium-based grease on the explosion-proof surface of the box.
2. After the box cover is tightened, use a plug gauge to check the explosion-proof gap, and the maximum gap is less than
3. Clean the surface of the box after assembly, and use foamed plastic to pack it properly to avoid damage to the box structure and surface spray during transportation and installation.
4. The parts are not allowed to knock, touch or scratch the explosion-proof surface during the assembly process of the explosion-proof box.
5. Before assembling the electrical components, press the test as required, press 1MP, and keep it for 10-12S. It should be ensured that the box has no obvious deformation and no leakage.
6. When assembling electrical components, pay attention to the proper location and firm installation.
7. The line number is marked with a numbering machine, and the line number is clear and complete. Pay attention to the color and diameter of the wire sequence when wiring.
8. After the electrical equipment is installed, debug it according to the electrical design requirements.
9. After debugging the explosion-proof box, fasten the wiring harness, install the wire slot cover, and pay attention to whether the grounding wire is well connected. The grounding wire can be wound with Φ20-30 round bar for 6-8 turns to reduce its sports injury.
10. The explosion-proof surface of the finished parts is not allowed to have rust and defects such as bumps and scratches that affect performance, life or appearance.
11. All welds must be welded on both sides, and there should be no welding defects such as penetration blisters. After welding, the welds must be smoothed.
12. The threaded hole is matched with the cover.
13. Before spraying and derusting the explosion-proof box, use organic solvent, lye, emulsifier, steam, etc. to remove grease and dirt on the surface of steel parts.
14. All processing procedures are completed, and the inner and outer surfaces are electrostatically sprayed. Anti-corrosion and weather-resistant paint for spraying, the color is Camel 09 (ice gray).
If you are interested in sheet metal processing, metal box production, distribution box production, etc., please feel free to contact us, we are looking forward to your inquiry.
Contact:Andy Yang
What’s app : +86 13968705428
Email: Andy@baidasy.com
Post time: Nov-29-2022