Structure of Aluminium Prepainted Galvalume for Sandwich Pannel Description:
Coated aluminum coil/sheet are of a wide range of colors, which gives wonderful appearance no matter in residential and commercial constructions of great exhibition centers.
The coated aluminum coil/sheet have been widely used in the fields of construction and decoration( garage doors, ceiling etc.), electronic appliances, lighting decoration, air-condition air pipes, sandwich panels and drainages etc.
Main Features of the Aluminium Prepainted Galvalume for Sandwich Pannel:
1) High flexibility
2) Impact resistance
3) Excellent weather-proof durability
5) High erosion resist
Images of Aluminium Prepainted Galvalume for Sandwich Pannel:
Aluminium Prepainted Galvalume for Sandwich PannelSpecification:
From 0.024mm to 1.2mm
2.5 T/coil,3.0 T/coil
PE, PVDF, AC
Embossed, mill finish, coated
AS to code RAL
PE: more than 18 micron
PVDF: more than 25 micron
More than 2h
No peeling or cracking(50 kg/cm,ASTMD-2794:1993)
More than 100
a.What is monthly capacity
---CNBM is one stated own company and our monthly capacity is about 2000tons.
b. Now which countries do you export your goods?
---Now we export to South East Asia,Africa, North America,South America ect.
- Q:Could induction heating fuenace be packaged with aluminum foil as insulation material?
- You can choose the thermal insulation material according to temperature.
- Q:why does the bubble apear a few minutes later after putting aluminum sheet into diluted hydrochloric acid?
- Aluminum element is extremely activated and will react with oxygen, generating aluminum oxide, once being exposed in air, so there is a layer of aluminum oxide on the surface of daily aluminum products including aluminum sheet. When aluminum sheet is put into diluted hydrochloric acid, aluminum oxide on the surface will firstly react with hydrochloric acid, generating aluminium chloride and water, the process won’t generate bubble, but after finishing the reaction of aluminum oxide on the surface, when the exposed aluminum element reacts with hydrochloric acid, generating aluminium chloride and oxygen, the bubble appears.
- Q:has aluminum sheet reacted with concentrated sulfuric acid?
- it can be regarded as no reaction, concentrated sulfuric acid will make aluminum's surface inactivation,and produce a layer of dense aluminium oxide film which will prevent further reaction.
- Q:Which kind of solution should I use while welding aluminum sheet and copper pipe by tin soldering?
- 1, you must use over 350W soldering iron, 2,prepare some borax and tin soldering paster, you can’t use rosin to weld it, 3, polish the pipe to clean with fine abrasive paper and borax, 4, put the pipe and sheet into borax, use the soldering trip to rub on the weldment with some borax. 5, after the pipe and sheet become hot, use the soldering iron with the paster and tin to rub the pipe and sheet in borax, then it can be welded. 6, they can be welded together after welding.
- Q:can the oxide film on the surface of aluminum sheet prevent the erosion of acid liquid? Why?
- yes, acid can react with aluminum oxide , generating salt and water, but its anti-corrosion will be stronger if oxide film on the surface is enough dense.
- Q:why does the hardness of 2024 aluminum sheet not increase but decrease after thermal treatment?
- The hardness of 2024 aluminum sheet will decrease after thermal treatment(solution treatment), and it will increase after aging treatment.
- Q:whst should I notice while welding aluminum sheet and aluminum block?
- two types of aluminum reach melting points, aluminum block must be preheated when you weld them with small current, you will know how to do it. You can use argon-arc welding back and forth, preheat it with small current.
- Q:how to find 0.6mm waste strake of aluminum sheet?
- ask door and window maker for some strake.
- Q:which kind of material won't influence magnet attracting iron nail? Does copper sheet or aluminum sheet influence it?
- Copper coil will impede magnetic penetration. People separate the magnet from the workpiece of machine tool to avoid magnetic short circuit and attraction loss, making magnetic line of force go through the workpiece. An opening copper bush is added into the iron core of magnetic closing coil or opening solenoid to avoid the iron core being attracted on the external iron piece and stop operation. The opening is for avoiding eddy formulation and short circuit, iron core in copper bush is the ruled magnetic circuit.
- Q:is general aluminum sheet fire-proof?
- aluminum products has low melting point and is nonfireproof,and aluminum alloys will be better.
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