Structure of Aluminium Sheet for Roofing Making and for Corlor coated 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 Sheet for Roofing Making and for Corlor coated:
1) High flexibility
2) Impact resistance
3) Excellent weather-proof durability
5) High erosion resist
Images of the Aluminium Sheet for Roofing Making and for Corlor coated:
Aluminium Sheet for Roofing Making and for Corlor coated Specification:
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:does aluminum sheet need to conduct ROHS detection?it's metel material, how much detections should it conduct for ROHS detection?
- It's ok for detecting four items of ROHS heavy metal for ROHS detection of metal material.
- 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:could aluminum sheet be attracted by magnet?
- no, it couldn't.
- Q:How to clean the aluminium oxide on the surface of aluminum? What kind of materials should we use to clean the thin aluminum sheet, and what's the concentration?
- You can sprinkle the mix of Alkaline water,vinegar,washing powder and liquid detergent on the surface. And after a period of time, rub it with soft silk, after it being dry,sprinkle again and rub until it's clean.
- Q:How could two pieces of aluminium flakes be welded together?
- You can use argon arc welding, connect the positive pole with alternating current,aluminum wire as the welding wire.
- Q:what's the oxidation method of positive pole on the surface of aluminum sheet?
- Do chemical polishing again, oxidation time is about 40 – 90 minutes, after finishing all of these, you can conduct positive pole oxidation, choose sulfuric acid solution in normal situation, pretreatment is very important in the whole process, take stereo as negative pole, firstly, use the solution mixed of carbonate-bicarbonate and detergent to heat and clean its surface, pretreat the aluminum sheet, dyeing according to requirement after oxidation, then remove the oxide film with oxide film removal solution, place aluminum sheet on the positive pole, finally closing it in the boiling water for about 15 minutes.
- Q:how to produce aluminium sheet circle?
- As for the process, you can use punch.. as for professional machines, for example, stationary press in open type, mechanical press/ single-point press. The material you say is neither big nor small, blanking…(cutting them into sheet circle you want) you can add an uncoiling if it’s coil stock: open-type inclinable press, four-point press,ect. It’s not certainly accurate) punch, oil press, double , four-column hydraulic (oil) press,etc. it needs about 315T,(estimated value, closed type single, blank material cutting (cutting into square ) 2, it contains sheet metal forming technology, crank press: 1: straight side two : 1, but the components you said is simple, only two steps.
- Q:what's the difference between the knocking voice of aluminum sheet and stainless steel?
- The voice of aluminum sheet is toneless, and the voice of stanless steel is more crisp.
- Q:why could aluminum pot be repaired by knocking the aluminum sheet into the pot but not being bonded by glue?
- the oxidation rate of aluminum's surface is very quick, so we cann't use the method of tin welding, and the cost of argon arc welding is very high,so aluminum pot's repair usually uses riveting.
aluminum has low hardness and good ductility, so it can be repaired
by tightly knocking, without the bonding of glue.
general glue will decomposed in open fire, if we bond pot by glue, the pot after repair won't be able to endure high temperature.
- Q:Which kind of material does aluminum sheet(aluminum oxide) belong to?
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